WO2021103974A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2021103974A1
WO2021103974A1 PCT/CN2020/126746 CN2020126746W WO2021103974A1 WO 2021103974 A1 WO2021103974 A1 WO 2021103974A1 CN 2020126746 W CN2020126746 W CN 2020126746W WO 2021103974 A1 WO2021103974 A1 WO 2021103974A1
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WIPO (PCT)
Prior art keywords
radiator
branch
value
end surface
distance
Prior art date
Application number
PCT/CN2020/126746
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English (en)
French (fr)
Inventor
张小伟
余冬
侯猛
王汉阳
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US17/780,848 priority Critical patent/US20230008642A1/en
Priority to EP20892945.5A priority patent/EP4047747A4/en
Publication of WO2021103974A1 publication Critical patent/WO2021103974A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/245—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H01Q5/385—Two or more parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

Definitions

  • This application relates to the field of antenna technology, in particular to an electronic device.
  • the resonant mode generated by the antenna of the conventional electronic device is a differential mode mode.
  • the specific absorption ratio SAR (Specific Absorption Ratio) of the differential mode may be relatively high.
  • the electronic device provided by the technical solution of the present application can generate one or more convection mode resonance modes.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator and a second radiator.
  • the first radiator is coupled with the second radiator.
  • the radio frequency signal can be coupled and fed to the second radiator via the first radiator.
  • the radio frequency signal can also be coupled and fed to the first radiator via the second radiator.
  • the second radiator includes a first branch, a second branch, and a third branch.
  • One end of the second branch node is connected between the head end and the end of the first branch node, and the head end and the end of the first branch node are respectively located on both sides of the second branch node.
  • the other end of the second branch is connected between the head end and the end of the third branch.
  • the head end of the third branch and the end of the third branch are located on both sides of the second branch. It can be understood that the two sides of the second branch can be understood as the two sides of the second branch itself, and can also be understood as the two sides in the extending direction of the second branch.
  • the first stub has a reference plane away from the second stub.
  • the projection of the reference plane on the first radiator is a first projection.
  • the first projection and the first radiator partially or completely overlap, or the shortest distance between the first projection and the first radiator is in the range of 0 to 3 millimeters.
  • the first radiator and the second radiator may achieve strong coupling.
  • the second radiator may be located in the region of the strong magnetic field of the first radiator.
  • the distance between the head end face of the third branch and the center of the reference plane is a first value.
  • the distance between the end face of the third branch and the center of the reference plane is a second value.
  • the ratio of the first value to the second value is in the range of 0.5 to 2.
  • the second radiator has a quasi-symmetrical or symmetrical structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convection mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the third branch includes a first branch and a second branch.
  • the end of the first branch section away from the second branch section is the head end of the third branch section.
  • the end of the second branch node away from the first branch node is the end of the third branch node.
  • the first branch node and the second branch node are in a strip shape, and the angle between the first branch node and the second branch node is a, and a satisfies: 0° ⁇ a ⁇ 180°.
  • the third branch roughly has a "V" shape or a "V" shape.
  • the third branch by making the third branch roughly a "V" shape, or a "V" shape, or a strip shape, the symmetry of the second radiator is better.
  • the structure of the third branch is simple and easy to process.
  • the second radiator further includes a fourth branch, a third branch node, and a fourth branch branch.
  • the fourth branch, the third branch node, and the fourth branch node are all located on a side of the first branch away from the second branch.
  • One end of the fourth branch section is connected to the head end of the third branch section and the head end of the fourth branch section, and the other end is connected to the reference plane.
  • the ends of the third branch node and the ends of the fourth branch node are located on both sides of the fourth branch node. It can be understood that the two sides of the fourth branch can be understood as the two sides of the fourth branch itself, and can also be understood as the two sides in the extending direction of the fourth branch.
  • the distance between the end face of the third branch segment and the center of the reference plane is a third value.
  • the distance between the end face of the fourth branching branch and the center of the reference plane is a fourth value.
  • the ratio of the third value to the fourth value is in the range of 0.5 to 2.
  • the fourth branch, the third branch and the fourth branch are connected on the side of the first branch away from the second branch, so that the first branch is used.
  • the three-branched branches and the fourth branched branches generate a convection mode, that is, the number of convection modes generated by the first radiator and the second radiator further increases.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the third bifurcated branch extends in a direction away from the reference plane. Or the extension direction of the third branch node is parallel to the extension direction of the reference plane.
  • the fourth bifurcated branch extends in a direction away from the first branch. Or the extension direction of the second branch node is parallel to the extension direction of the first branch node.
  • the third branch node and the fourth branch node are both strip-shaped.
  • the included angle between the third branch node and the fourth branch node is greater than 0° and less than or equal to 180°.
  • the second radiator further includes a fourth branch, a third branch node, and a fourth branch branch.
  • the fourth branch, the third branch node, and the fourth branch node are all located on a side of the first branch node and the second branch node away from the second branch node.
  • One end of the fourth branch section is connected to the head end of the first branch section and the head end of the second branch section, and the other end is connected to the head end of the third branch section and the fourth branch section.
  • the ends of the third branch node and the ends of the fourth branch node are located on both sides of the fourth branch node.
  • the two sides of the fourth branch can be understood as the two sides of the fourth branch itself, and can also be understood as the two sides in the extending direction of the fourth branch.
  • the distance between the end face of the third branch segment and the center of the reference plane is a third value.
  • the distance between the end face of the fourth branching branch and the center of the reference plane is a fourth value.
  • the ratio of the third value to the fourth value is in the range of 0.5 to 2.
  • the fourth branch, the third branch and the fourth branch By connecting the fourth branch, the third branch and the fourth branch on the side of the first branch and the second branch away from the second branch, thereby
  • the current on the third branch node and the fourth branch node is used to generate a convection mode, that is, the number of convection modes generated by the first radiator and the second radiator is further increased.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the third bifurcated branch extends in a direction away from the reference plane. Or the extension direction of the third branch node is parallel to the extension direction of the reference plane.
  • the fourth bifurcated branch extends in a direction away from the first branch. Or the extension direction of the second branch node is parallel to the extension direction of the first branch node.
  • the third branch node and the fourth branch node are both strip-shaped.
  • the included angle between the third branch node and the fourth branch node is greater than 0° and less than or equal to 180°.
  • the first radiator includes a first feeding branch.
  • the first feeding stub has a ground point.
  • the first feeding stub includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the grounding point is a fifth value.
  • the distance between the center of the second end surface and the ground point is a sixth value.
  • the ratio of the fifth value to the sixth value is in the range of 0.3 to 3.
  • the first feeding branch has a quasi-symmetrical or symmetrical structure.
  • the first feeding branch to have a quasi-symmetrical or symmetrical structure, so that after the first radiator receives the radio frequency signal, the first radiator can generate a convection mode, that is, the first radiator
  • the radiator has a convection mode resonance frequency.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first radiator further includes a connecting stub and a second feeding stub.
  • the second feeding stub includes a first end and a second end disposed away from the first end.
  • One end of the connecting stub is connected between the first end surface and the second end surface of the first feeding stub, and the other end is connected between the first end and the second end.
  • the first end and the second end are located on both sides of the connecting branch.
  • the two sides of the connecting branch can be understood as the two sides of the connecting branch itself, and can also be understood as the two sides in the extending direction of the connecting branch.
  • the distance between the center of the end surface of the first end and the grounding point is a seventh value.
  • the distance between the center of the end surface of the second end and the ground point is an eighth value.
  • the ratio of the seventh value to the eighth value is in the range of 0.3 to 3.
  • a convection mode is generated by using the connecting stub and the second feeding stub , That is, the number of convection modes generated by the first radiator and the second radiator is further increased.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the first radiator includes a first feeding branch.
  • the first feeding stub includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the feeding point of the first feeding stub is a fifth value.
  • the distance between the center of the second end surface and the feeding point is a sixth value.
  • the ratio of the fifth value to the sixth value is in the range of 0.3 to 3.
  • the first radiator has a quasi-symmetrical or symmetrical structure.
  • the first feeding branch to have a quasi-symmetrical or symmetrical structure, so that after the first radiator receives the radio frequency signal, the first radiator can generate a convection mode, that is, the first radiator
  • the radiator has a convection mode resonance frequency.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first radiator is an inverted F antenna, a composite left-handed antenna, or a loop antenna.
  • the second radiator when the second radiator having a quasi-symmetric structure or a symmetric structure is matched with an inverted F antenna, a composite left-handed antenna or a loop antenna, the second radiator can also generate a convection mode.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the electronic device further includes a third radiator.
  • the third radiator is coupled with the first radiator.
  • the third radiator includes a fifth branch section and a sixth branch section.
  • the head end of the fifth bifurcated branch is connected to the head end of the sixth bifurcated branch.
  • the fifth bifurcated branch extends in a direction away from the reference plane, and the sixth bifurcated branch extends in a direction away from the reference plane
  • the projection of the third radiator on the first radiator is a second projection.
  • the second projection is partially or entirely located in the first radiator, or the shortest distance between the second projection and the first radiator is in the range of 0 to 3 millimeters.
  • the center distance between the head end surface and the end end surface of the fifth branch segment is a ninth value.
  • the center distance between the head end surface and the end end surface of the sixth branch segment is a tenth value.
  • the ratio of the ninth value to the tenth value is in the range of 0.5 to 2.
  • the third radiator has a quasi-symmetrical or symmetrical structure.
  • the third radiator is provided on the side of the second radiator away from the first radiator, so that the current on the third radiator is used to generate a convection mode, that is, The number of convection modes generated by the first radiator, the second radiator and the third radiator is further increased.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other.
  • the first surface faces the receiving space.
  • the first radiator is fixed to the first surface.
  • the second radiator is fixed to the second surface.
  • the space of the back cover is effectively used, that is, the space of the back cover is avoided.
  • the first radiator and the second radiator occupy the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator is fixed on the surface of the bracket facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing the receiving space, or the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the second radiator is fixed on the surface of the housing facing the accommodating space, so that the first radiator and The second radiator is located in the containing space, and the housing and the screen are used to protect the first radiator and the second radiator.
  • the second radiator is fixed to the surface of the housing facing the accommodating space, thereby effectively using the space of the housing.
  • the second radiator is fixed on the surface of the housing facing away from the accommodating space, so that the first radiator and The distance between the second radiators increases, that is, the antenna has a larger clear space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket, the screen is mounted on the housing, the screen and the housing surround a receiving space, and the circuit board Fixedly located in the accommodating space, the bracket is fixed to the circuit board, and a space is enclosed with the circuit board, and the first radiator is fixed on the surface of the bracket facing the space;
  • the second radiator is fixed on the surface of the bracket away from the space.
  • the second radiator is fixed on the surface of the housing facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the bracket can be used to effectively protect the first radiator, and on the other hand, the space can be increased.
  • the distance between the first radiator and the second radiator is such that the antenna has a larger clear space.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator and a second radiator.
  • the first radiator is coupled with the second radiator.
  • the radio frequency signal can be coupled and fed to the second radiator via the first radiator, and can also be coupled and fed to the first radiator via the second radiator.
  • the second radiator includes a first branch, a first forked branch, and a second forked branch.
  • One end of the first branch is connected to the head end of the first branching branch and the head end of the second branching branch.
  • the ends of the first branch section and the ends of the second branch section are located on both sides of the first branch section. It can be understood that the two sides of the first branch can be understood as the two sides of the first branch itself, and can also be understood as the two sides in the extending direction of the first branch.
  • the first branch has a reference plane away from the first branch node and the second branch node.
  • the projection of the reference plane on the first radiator is a first projection.
  • the first projection and the first radiator partially or completely overlap, or the shortest distance between the first projection and the first radiator is in the range of 0 to 3 millimeters. In other words, the first radiator and the second radiator can achieve strong coupling.
  • the distance between the end face of the first branching branch and the center of the reference plane is a first value.
  • the distance between the end face of the second bifurcated branch and the center of the reference plane is a second value.
  • the ratio of the first value to the second value is in the range of 0.5 to 2.
  • the second radiator has a quasi-symmetrical or symmetrical structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convection mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • both the first bifurcated branch node and the second branched branch node are in a strip shape.
  • the included angle between the first branch node and the second branch node is a, and a satisfies: 0° ⁇ a ⁇ 180°.
  • a satisfies: 0° ⁇ a ⁇ 180°.
  • the first branching branch and the second branching branch are roughly "V"-shaped, or "V"-shaped.
  • the second radiator is substantially in a "V" shape, or in a "V” shape, or in a strip shape, so that the symmetry of the second radiator is better.
  • the second radiator has a simple structure and is easy to process.
  • the first radiator includes a first feeding branch.
  • the first feeding stub has a ground point.
  • the first feeding stub includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the grounding point is a fifth value.
  • the distance between the center of the second end surface and the ground point is a sixth value.
  • the ratio of the fifth value to the sixth value is in the range of 0.3 to 3.
  • the first feeding branch has a quasi-symmetrical or symmetrical structure.
  • the first feeding branch to have a quasi-symmetrical or symmetrical structure, so that after the first radiator receives the radio frequency signal, the first radiator can generate a convection mode, that is, the first radiator
  • the radiator has a convection mode resonance frequency.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first radiator further includes a connecting stub and a second feeding stub.
  • the second feeding stub includes a first end and a second end disposed away from the first end.
  • One end of the connecting stub is connected between the first end surface and the second end surface of the first feeding stub, and the other end is connected between the first end and the second end.
  • the first end and the second end are located on both sides of the connecting branch. It is understandable that the two sides of the connecting branch can be understood as the two sides of the connecting branch itself, and can also be understood as the two sides in the extending direction of the connecting branch.
  • the distance between the center of the end surface of the first end and the grounding point is a seventh value.
  • the distance between the center of the end surface of the second end and the ground point is an eighth value.
  • the ratio of the seventh value to the eighth value is in the range of 0.3 to 3.
  • a convection mode is generated by using the connecting stub and the second feeding stub , That is, the number of convection modes generated by the first radiator and the second radiator is further increased.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the first radiator includes a first feeding branch.
  • the first feeding stub includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the feeding point of the first feeding stub is a fifth value.
  • the distance between the center of the second end surface and the feeding point is a sixth value, and the ratio of the fifth value to the sixth value is in the range of 0.3 to 3.
  • the first radiator has a quasi-symmetrical or symmetrical structure.
  • the first feeding branch to have a quasi-symmetrical or symmetrical structure, so that after the first radiator receives the radio frequency signal, the first radiator can generate a convection mode, that is, the first radiator
  • the radiator has a convection mode resonance frequency.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first radiator is an inverted F antenna, a composite left-handed antenna, or a loop antenna.
  • the second radiator when the second radiator with a quasi-symmetric structure or a symmetric structure is matched with an inverted F antenna, a composite left-handed antenna or a loop antenna, the second radiator can also generate a convection mode.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other. The first surface faces the receiving space.
  • the first radiator is fixed on the first surface.
  • the second radiator is fixed to the second surface.
  • the space of the back cover is effectively used, that is, the space of the back cover is avoided.
  • the first radiator and the second radiator occupy the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator is fixed on the surface of the bracket facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing the receiving space, or the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the second radiator is fixed on the surface of the housing facing the accommodating space, so that the first radiator and The second radiator is located in the containing space, and the housing and the screen are used to protect the first radiator and the second radiator.
  • the second radiator is fixed to the surface of the housing facing the accommodating space, thereby effectively using the space of the housing.
  • the second radiator is fixed on the surface of the housing facing away from the accommodating space, so that the first radiator and The distance between the second radiators increases, that is, the antenna has a larger clear space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket
  • the screen is mounted on the housing, the screen and the housing surround a receiving space
  • the circuit board The bracket is fixed in the accommodating space, the bracket is fixed to the circuit board, and a space is enclosed with the circuit board, and the first radiator is fixed on the surface of the bracket facing the space.
  • the second radiator is fixed on the surface of the bracket away from the space.
  • the second radiator is fixed on the surface of the housing facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the bracket can be used to effectively protect the first radiator, and on the other hand, the space can be increased.
  • the distance between the first radiator and the second radiator is such that the antenna has a larger clear space.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator and a second radiator.
  • the first radiator is coupled with the second radiator.
  • the radio frequency signal can be coupled and fed to the second radiator via the first radiator, and can also be coupled and fed to the first radiator via the second radiator.
  • the second radiator includes a first forked branch and a second forked branch.
  • the head end of the first bifurcated branch and the head end of the second bifurcated branch are connected to each other.
  • the first forked branch extends in a direction away from the head end of the second forked branch.
  • the second bifurcated leg extends in a direction away from the head end of the first bifurcated leg.
  • the projection of the second radiator on the first radiator is a first projection.
  • the first projection and the first radiator partially or completely overlap, or the shortest distance between the first projection and the first radiator is in the range of 0 to 3 millimeters. In other words, the first radiator and the second radiator can achieve strong coupling.
  • the center distance between the head end surface and the end end surface of the first bifurcated branch is a first value.
  • the center distance between the head end surface and the end end surface of the second bifurcated branch is a second value.
  • the ratio of the first value to the second value is in the range of 0.2 to 2.
  • the second radiator has a quasi-symmetrical or symmetrical structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convective mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first branch node and the second branch node are in a strip shape, and the angle between the first branch node and the second branch node is a, and a satisfies : 0° ⁇ a ⁇ 180°.
  • the first branching branch and the second branching branch are roughly "V"-shaped, or "V"-shaped.
  • the symmetry of the second radiator is better.
  • the second radiator has a simple structure and is easy to process.
  • the first radiator includes a first feeding branch.
  • the first feeding stub has a ground point.
  • the first feeding stub includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the grounding point is a fifth value.
  • the distance between the center of the second end surface and the ground point is a sixth value.
  • the ratio of the fifth value to the sixth value is in the range of 0.3 to 3.
  • the first feeding branch has a quasi-symmetrical or symmetrical structure.
  • the first feeding branch to have a quasi-symmetrical or symmetrical structure, so that after the first radiator receives the radio frequency signal, the first radiator can generate a convection mode, that is, the first radiator
  • the radiator has a convection mode resonance frequency.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first radiator further includes a connecting stub and a second feeding stub.
  • the second feeding stub includes a first end and a second end disposed away from the first end.
  • One end of the connecting stub is connected between the first end surface and the second end surface of the first feeding stub, and the other end is connected between the first end and the second end.
  • the end and the second end are located on both sides of the connecting branch. It is understandable that the two sides of the connecting branch can be understood as the two sides of the connecting branch itself, and can also be understood as the two sides in the extending direction of the connecting branch.
  • the distance between the center of the end surface of the first end and the ground point is a seventh value
  • the distance between the center of the end surface of the second end and the ground point is an eighth value
  • the seventh value is The ratio of the eighth value is in the range of 0.3 to 3.
  • a convection mode is generated by using the connecting stub and the second feeding stub , That is, the number of convection modes generated by the first radiator and the second radiator is further increased.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the first radiator includes a first feeding branch.
  • the first feeding stub includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end face and the feeding point of the first feeding stub is a fifth value
  • the distance between the center of the second end face and the feeding point is a sixth value
  • the fifth The ratio of the value to the sixth value is in the range of 0.3 to 3.
  • the first radiator has a quasi-symmetrical or symmetrical structure.
  • the first feeding branch to have a quasi-symmetrical or symmetrical structure, so that after the first radiator receives the radio frequency signal, the first radiator can generate a convection mode, that is, the first radiator
  • the radiator has a convection mode resonance frequency.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first radiator is an inverted F antenna, a composite left-handed antenna, or a loop antenna.
  • the second radiator when the second radiator with a quasi-symmetric structure or a symmetric structure is matched with an inverted F antenna, a composite left-handed antenna or a loop antenna, the second radiator can also generate a convection mode.
  • the working frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other.
  • the first surface faces the receiving space.
  • the first radiator is fixed to the first surface.
  • the second radiator is fixedly connected to the second surface.
  • the second radiator is fixedly connected to the second surface, thereby effectively using the space of the back cover, that is, avoiding The first radiator and the second radiator occupy the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator is fixed on the surface of the bracket facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing the receiving space, or the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the second radiator is fixed on the surface of the housing facing the accommodating space, so that the first radiator and The second radiator is located in the containing space, and the housing and the screen are used to protect the first radiator and the second radiator.
  • the second radiator is fixed to the surface of the housing facing the accommodating space, thereby effectively using the space of the housing.
  • the second radiator is fixed on the surface of the housing facing away from the accommodating space, so that the first radiator and The distance between the second radiators increases, that is, the antenna has a larger clear space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket
  • the screen is mounted on the housing, the screen and the housing surround a receiving space
  • the circuit board The bracket is fixed in the accommodating space, the bracket is fixed to the circuit board, and a space is enclosed with the circuit board, and the first radiator is fixed on the surface of the bracket facing the space.
  • the second radiator is fixed on the surface of the bracket away from the space.
  • the second radiator is fixed on the surface of the housing facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the bracket can be used to effectively protect the first radiator, and on the other hand, the space can be increased.
  • the distance between the first radiator and the second radiator is such that the antenna has a larger clear space.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator and a second radiator.
  • the first radiator is coupled with the second radiator.
  • the radio frequency signal can be coupled and fed to the second radiator via the first radiator.
  • the radio frequency signal can also be coupled and fed to the first radiator via the second radiator.
  • the first radiator includes a first end surface and a second end surface disposed away from the first end surface.
  • the second radiator includes a third end surface and a fourth end surface disposed away from the third end surface.
  • the first end surface is located between the third end surface and the fourth end surface.
  • the second end surface is located between the first end surface and the fourth end surface.
  • the projection of the second radiator on the first radiator is a first projection.
  • the first projection and the first radiator partially or completely overlap, or the distance between the first projection and the first radiator is in the range of 0 to 3 millimeters. At this time, the first radiator and the second radiator may achieve strong coupling.
  • the center distance between the first end surface and the third end surface is a first value.
  • the center distance between the second end surface and the fourth end surface is a second value.
  • the ratio of the first value to the second value is in the range of 0.5 to 2.
  • the second radiator has a quasi-symmetrical or symmetrical structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convection mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the second radiator has a strip shape.
  • the second radiator is strip-shaped, thereby simplifying the structure of the second radiator and facilitating manufacturing.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other.
  • the first surface faces the receiving space.
  • the first radiator is fixed to the first surface.
  • the second radiator is fixedly connected to the second surface.
  • the second radiator is fixedly connected to the second surface, thereby effectively using the space of the back cover, that is, avoiding The first radiator and the second radiator occupy the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator is fixed on the surface of the bracket facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing the receiving space, or the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the second radiator is fixed on the surface of the housing facing the accommodating space, so that the first radiator and The second radiator is located in the containing space, and the housing and the screen are used to protect the first radiator and the second radiator.
  • the second radiator is fixed to the surface of the housing facing the accommodating space, thereby effectively using the space of the housing.
  • the second radiator is fixed on the surface of the housing facing away from the accommodating space, so that the first radiator and The distance between the second radiators increases, that is, the antenna has a larger clear space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket, the screen is mounted on the housing, the screen and the housing surround a receiving space, and the circuit board Fixedly located in the accommodating space, the bracket is fixed to the circuit board, and a space is enclosed with the circuit board, and the first radiator is fixed on the surface of the bracket facing the space;
  • the second radiator is fixed on the surface of the bracket away from the space.
  • the second radiator is fixed on the surface of the housing facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the bracket can be used to effectively protect the first radiator, and on the other hand, the space can be increased.
  • the distance between the first radiator and the second radiator is such that the antenna has a larger clear space.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator and a second radiator, and the first radiator is coupled with the second radiator.
  • the radio frequency signal can be coupled and fed to the second radiator via the first radiator, and can also be coupled and fed to the first radiator via the second radiator.
  • the first radiator includes a first end surface and a second end surface disposed away from the first end surface.
  • the second radiator includes a third end surface and a fourth end surface disposed away from the third end surface.
  • the third end surface is located between the first end surface and the second end surface.
  • the fourth end surface is located on a side of the first end surface away from the third end surface.
  • the projection of the second radiator on the first radiator is a first projection.
  • the first projection is partially overlapped with the first radiator. Or the shortest distance between the first projection and the first radiator is in the range of 0 to 3 mm. At this time, the first radiator and the second radiator may achieve strong coupling.
  • the center distance between the first end surface and the second end surface is a first value
  • the center distance between the third end surface and the fourth end surface is a second value
  • the difference between the first value and the second value The ratio is in the range of 0.5 to 2.
  • the second radiator has a quasi-symmetrical or symmetrical structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convection mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the center distance between the first end surface and the third end surface is a third value.
  • the ratio of the third value to the second value is in the range of 0 to 0.35.
  • the first radiator and the second radiator are both strip-shaped.
  • the structure of the first radiator and the second radiator is simplified, and the manufacturing is convenient.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other.
  • the first surface faces the receiving space.
  • the first radiator is fixed to the first surface.
  • the second radiator is fixedly connected to the second surface.
  • the second radiator is fixedly connected to the second surface, thereby effectively using the space of the back cover, that is, avoiding The first radiator and the second radiator occupy the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the housing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator is fixed on the surface of the bracket facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing the receiving space, or the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the second radiator is fixed on the surface of the housing facing the accommodating space, so that the first radiator and The second radiator is located in the containing space, and the housing and the screen are used to protect the first radiator and the second radiator.
  • the second radiator is fixed to the surface of the housing facing the accommodating space, thereby effectively using the space of the housing.
  • the second radiator is fixed on the surface of the housing facing away from the accommodating space, so that the first radiator and The distance between the second radiators increases, that is, the antenna has a larger clear space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket, the screen is mounted on the housing, the screen and the housing surround a receiving space, and the circuit board Fixedly located in the accommodating space, the bracket is fixed to the circuit board, and a space is enclosed with the circuit board, and the first radiator is fixed on the surface of the bracket facing the space;
  • the second radiator is fixed on the surface of the bracket away from the space.
  • the second radiator is fixed on the surface of the housing facing the receiving space.
  • the second radiator is fixed on the surface of the housing facing away from the receiving space.
  • the bracket can be used to effectively protect the first radiator, and on the other hand, the space can be increased.
  • the distance between the first radiator and the second radiator is such that the antenna has a larger clear space.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator, a second radiator, and a radio frequency transceiver circuit.
  • the second radiator is connected to the first radiator.
  • the radio frequency transceiver circuit is electrically connected to the first radiator.
  • the radio frequency transceiver circuit is used to transmit or receive radio frequency signals.
  • the radio frequency signal emitted by the radio frequency transceiver circuit can be directly transmitted to the first radiator and the second radiator.
  • the first radiator and the second radiator can transmit radio frequency signals to the radio frequency transceiver circuit.
  • the first radiator has a feeding point connected to the radio frequency transceiver circuit.
  • the first radiator includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the feeding point is a fifth value.
  • the distance between the center of the second end surface and the feeding point is a sixth value.
  • the ratio of the fifth value to the sixth value is in the range of 0.3 to 3. In other words, the first radiator has a quasi-symmetrical or symmetrical structure.
  • the second radiator includes a first branch, a first forked branch, and a second forked branch.
  • One end of the first branch section is connected to the head end of the first branch section and the head end of the second branch section, and the other end is connected to the first radiator.
  • the ends of the first branch section and the ends of the second branch section are located on both sides of the first branch section. It can be understood that the two sides of the first branch can be understood as the two sides of the first branch itself, and can also be understood as the two sides in the extending direction of the first branch.
  • the distance between the terminal end surface of the first bifurcation branch and the center of the feeding point is a first value.
  • the distance between the terminal end surface of the second bifurcation branch and the center of the feeding point is a second value.
  • the ratio of the first value to the second value is in the range of 0.3 to 3.
  • the second radiator also has a quasi-symmetric or symmetric structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convection mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first branch node and the second branch node are in a strip shape, and the angle between the first branch node and the second branch node is a, and a satisfies :0° ⁇ a ⁇ 180°.
  • the first branching branch and the second branching branch are roughly "V"-shaped, or "V"-shaped.
  • the second radiator has a better symmetry by making the second radiator approximately “V”-shaped, or “V”-shaped, or strip-shaped.
  • the second radiator has a simple structure and is easy to process.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other. The first surface faces the receiving space.
  • the first radiator and the second radiator are fixed on the first surface. Or the first radiator and the second radiator are fixedly connected to the second surface.
  • the space of the back cover can be effectively used, that is, the first radiator can be avoided. Since the second radiator occupies the accommodating space, the arrangement of devices in the accommodating space is reduced, and the housing can be used to protect the first radiator and the second radiator.
  • the space of the back cover is effectively used, that is, the space between the first radiator and the second radiator is avoided.
  • the second radiator occupies the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator and the second radiator are fixed on the surface of the bracket facing the receiving space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing, and a receiving space is enclosed by the screen and the casing.
  • the circuit board is fixed in the receiving space.
  • the bracket is fixed to the circuit board, and a space is enclosed with the circuit board.
  • the first radiator and the second radiator are fixed on the surface of the bracket facing the space.
  • the bracket is used to effectively protect the first radiator and the The second radiator.
  • the technical solution of the present application provides an electronic device.
  • the electronic device includes a first radiator, a second radiator, and a radio frequency transceiver circuit.
  • the second radiator is connected to the first radiator.
  • the radio frequency transceiver circuit is electrically connected to the first radiator.
  • the radio frequency transceiver circuit is used to transmit or receive radio frequency signals.
  • the radio frequency signal emitted by the radio frequency transceiver circuit can be directly transmitted to the first radiator and the second radiator.
  • the first radiator and the second radiator can transmit radio frequency signals to the radio frequency transceiver circuit.
  • the first radiator has a ground point.
  • the first radiator includes a first end surface and a second end surface disposed away from the first end surface.
  • the distance between the center of the first end surface and the grounding point is a fifth value.
  • the distance between the center of the second end surface and the ground point is a sixth value.
  • the ratio of the fifth value to the sixth value is in the range of 0.3 to 3. In other words, the first radiator has a quasi-symmetrical or symmetrical structure.
  • the second radiator includes a first branch, a first forked branch, and a second forked branch.
  • One end of the first branch section is connected to the head end of the first branch section and the head end of the second branch section, and the other end is connected to the first radiator.
  • the ends of the first branch section and the ends of the second branch section are located on both sides of the first branch section. It can be understood that the two sides of the first branch can be understood as the two sides of the first branch itself, and can also be understood as the two sides in the extending direction of the first branch.
  • the distance between the end face of the first branch segment and the center of the grounding point is a first value.
  • the distance between the end face of the second bifurcation branch and the center of the grounding point is a second value.
  • the ratio of the first value to the second value is in the range of 0.3 to 3.
  • the second radiator also has a quasi-symmetric or symmetric structure.
  • the first radiator and the second radiator when the first radiator and the second radiator receive radio frequency signals, the first radiator and the second radiator can generate a convection mode resonance frequency in this frequency band.
  • the working frequency band of the antenna is set in the vicinity of the resonance frequency of the convection mode, so that when the first radiator and the second radiator radiate signals, the signal has less influence on the user.
  • the first branch node and the second branch node are in a strip shape, and the angle between the first branch node and the second branch node is a, and a satisfies :0° ⁇ a ⁇ 180°.
  • the first branching branch and the second branching branch are roughly "V"-shaped, or "V"-shaped.
  • the second radiator has a better symmetry by making the second radiator approximately “V”-shaped, or “V”-shaped, or strip-shaped.
  • the second radiator has a simple structure and is easy to process.
  • the electronic device further includes a housing.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the casing includes a first surface and a second surface disposed opposite to each other. The first surface faces the receiving space.
  • the first radiator and the second radiator are fixed on the first surface. Or the first radiator and the second radiator are fixedly connected to the second surface.
  • the space of the back cover can be effectively used, that is, the first radiator can be avoided. Since the second radiator occupies the accommodating space, the arrangement of devices in the accommodating space is reduced, and the housing can be used to protect the first radiator and the second radiator.
  • the space of the back cover is effectively used, that is, the space between the first radiator and the second radiator is avoided.
  • the second radiator occupies the accommodating space, thereby reducing the arrangement of devices in the accommodating space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing.
  • the screen and the casing surround a receiving space.
  • the circuit board is located in the receiving space.
  • the bracket is fixed to the circuit board.
  • the first radiator and the second radiator are fixed on the surface of the bracket facing the receiving space.
  • the electronic device further includes a housing, a screen, a circuit board, and a bracket.
  • the screen is installed on the casing, and a receiving space is enclosed by the screen and the casing.
  • the circuit board is fixed in the receiving space.
  • the bracket is fixed to the circuit board, and a space is enclosed with the circuit board.
  • the first radiator and the second radiator are fixed on the surface of the bracket facing the space.
  • the bracket is used to effectively protect the first radiator and the The second radiator.
  • FIG. 1 is a schematic structural diagram of an implementation manner of an electronic device provided by an embodiment of the present application
  • FIG. 2 is an exploded schematic diagram of the electronic device shown in FIG. 1;
  • Fig. 3a is a schematic cross-sectional view of an implementation manner of the electronic device shown in Fig. 1 at the line M-M;
  • 3b is a schematic diagram of the structure of the back cover and the second radiator of the electronic device shown in FIG. 1;
  • FIG. 4 is a schematic diagram of a part of the structure of the electronic device shown in FIG. 1;
  • Fig. 5a is a schematic structural diagram of an embodiment of the radiator of the electronic device shown in Fig. 4;
  • Fig. 5b is a side view of the radiator shown in Fig. 5a;
  • Fig. 5c is a top view of the radiator shown in Fig. 5a;
  • Fig. 6 is a diagram showing the relationship between the reflection coefficient and frequency of the radiator shown in Fig. 5a in the frequency range of 0 to 6 GHz;
  • Fig. 7 is a schematic diagram of the current flow of the radiator shown in Fig. 5a at a frequency of f1;
  • Fig. 8 is a schematic diagram of the current flow of the radiator shown in Fig. 5a at a frequency of f2;
  • FIG. 9 is a schematic structural diagram of another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • Fig. 11 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator shown in Fig. 10 in the frequency range of 0 to 6 GHz;
  • FIG. 12 is a schematic structural diagram of still another implementation manner of the radiator provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • Fig. 14 is a schematic top view of the radiator shown in Fig. 13;
  • 15 is a diagram showing the relationship between reflection coefficient and frequency of the radiator shown in FIG. 14 in the frequency range of 0 to 6 GHz;
  • FIG. 16 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 17 is a schematic cross-sectional view of another implementation manner of the electronic device shown in FIG. 1 at the line M-M;
  • FIG. 18 is a schematic diagram of the structure of the radiator of the electronic device shown in FIG. 17;
  • Fig. 19 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator shown in Fig. 18 in the frequency range of 0 to 6 GHz;
  • FIG. 20a is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • 20b is a schematic cross-sectional view of still another implementation manner of the electronic device shown in FIG. 1 at the line M-M;
  • FIG. 21 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 23 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator shown in FIG. 22 in the frequency range of 0 to 6 GHz;
  • FIG. 24 is a schematic structural diagram of still another implementation manner of the radiator provided by an embodiment of the present application.
  • FIG. 25a is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 25b is a schematic structural diagram of still another implementation manner of the radiator provided by the embodiment of the present application.
  • FIG. 25c is a schematic structural diagram of yet another implementation manner of the radiator provided by an embodiment of the present application.
  • Fig. 26 is a diagram showing the relationship between reflection coefficient and frequency of the radiator shown in Fig. 25c in the frequency range of 0 to 6 GHz;
  • FIG. 27a is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 27b is a schematic structural diagram of still another implementation manner of the radiator provided by the embodiment of the present application.
  • FIG. 28 is a schematic structural diagram of still another implementation manner of the radiator provided by an embodiment of the present application.
  • Fig. 29 is a schematic structural diagram of the radiator shown in Fig. 28 at another angle;
  • Fig. 30a is a diagram showing the relationship between reflection coefficient and frequency of the radiator shown in Fig. 28 in the frequency range of 0 to 6 GHz;
  • FIG. 30b is a schematic structural diagram of still another implementation manner of the radiator provided by the embodiment of the present application.
  • FIG. 31 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • Fig. 32 is a diagram showing the relationship between reflection coefficient and frequency of the radiator shown in Fig. 31 in the frequency range of 0 to 6 GHz;
  • Fig. 33a is a schematic diagram of the current flow of the radiator shown in Fig. 31 at a frequency of f1;
  • FIG. 33b is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 34 is a schematic cross-sectional view of still another implementation manner of the electronic device shown in FIG. 1 at the line M-M;
  • 35 is a schematic cross-sectional view of still another implementation manner of the electronic device shown in FIG. 1 at the line M-M;
  • FIG. 36 is a schematic structural diagram of another implementation manner of an electronic device provided by an embodiment of the present application.
  • Fig. 37 is a schematic cross-sectional view of the electronic device shown in Fig. 36 along the line N-N;
  • FIG. 38 is a schematic partial structural diagram of still another implementation manner of an electronic device provided by an embodiment of the present application.
  • FIG. 39 is a schematic diagram of the structure of the radiator shown in FIG. 38;
  • FIG. 40 is a diagram showing the relationship between the reflection coefficient and frequency of the radiator shown in FIG. 39 in the frequency range of 0 to 6 GHz;
  • Fig. 41 is a schematic diagram of the current flow of the radiator shown in Fig. 39 at a frequency of f1;
  • Fig. 42 is a schematic diagram of the current flow of the radiator shown in Fig. 39 at a frequency of f2;
  • FIG. 43 is a schematic structural diagram of still another implementation manner of a radiator provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of an implementation manner of an electronic device 100 according to an embodiment of the present application.
  • the electronic device 100 may be a tablet computer, a mobile phone, a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, AR helmet, virtual reality (VR) glasses, or VR helmet .
  • the electronic device 100 of the embodiment shown in FIG. 1 is described by taking a mobile phone as an example.
  • the width direction of the electronic device 100 is defined as the X axis.
  • the length direction of the electronic device 100 is the Y axis.
  • the thickness direction of the electronic device 100 is the Z axis.
  • FIG. 2 is an exploded schematic diagram of the electronic device 100 shown in FIG. 1.
  • the electronic device 100 includes a housing 10, a screen 20, a circuit board 30 and an antenna 40.
  • the screen 20 is installed on the housing 10.
  • the screen 20 and the casing 10 jointly enclose a receiving space 13.
  • the circuit board 30 is located in the receiving space 13.
  • the accommodating space 13 can also be used to accommodate other devices. Such as speakers, microphones, earpieces, and camera modules.
  • the housing 10 includes a back cover 11 and a frame 12.
  • the back cover 11 is arranged opposite to the screen 20.
  • the back cover 11 is arranged on the side of the frame 12 away from the screen 20.
  • the back cover 11, the frame 12 and the screen 30 jointly define a receiving space 13.
  • FIG. 1 illustrates a structure in which the rear cover 11 and the frame 12 enclose a substantially rectangular parallelepiped.
  • the back cover 11 and the frame 12 are integrally formed.
  • the screen 20 includes a protective cover 21 and a display screen 22.
  • the protective cover 21 is laminated on the display screen 22 to protect the display screen 22.
  • the material of the protective cover 21 may be a light-transmitting material, such as glass.
  • the display screen 22 is used to display images.
  • the display screen 22 may be, but is not limited to, a liquid crystal display (LCD).
  • the display screen 22 may also be an organic light-emitting diode (OLED) display screen.
  • OLED organic light-emitting diode
  • the circuit board 30 is located between the screen 20 and the back cover 11.
  • the electronic components of the electronic device 100 are mounted on the circuit board 30.
  • the electronic components may include a central processing unit (CPU), a battery management unit, and a baseband processing unit.
  • the antenna 40 can be used to receive and transmit signals.
  • the antenna 40 includes a radio frequency transceiver circuit 41 and a radiator 42.
  • the radio frequency transceiver circuit 41 is located in the containing space 13.
  • the radio frequency transceiver circuit 41 may be fixed on the circuit board 30.
  • the radio frequency transceiver circuit 41 is used to transmit and receive radio frequency signals.
  • the radio frequency transceiver circuit 41 is not limited to the number, shape, and size shown in FIG. 2.
  • the radio frequency transceiving circuit 41 may include a radio frequency transceiving chip having an independent module.
  • the radio frequency transceiver chip is used to transmit and receive radio frequency signals. It is understandable that by setting up a radio frequency transceiver chip of an independent module, the functions of transmitting and receiving radio frequency signals can be operated independently, thereby improving signal transmission efficiency and further improving antenna performance.
  • the radio frequency transceiver circuit 41 may also include devices such as capacitors, inductors, or resistors. Capacitors, inductors or resistors are used to assist the transmission of radio frequency signals. For example, amplify the radio frequency signal and so on.
  • the radio frequency transceiver circuit 41 may include a processing unit, such as a CPU.
  • a processing unit such as a CPU.
  • the functions of transmitting and receiving radio frequency signals can be integrated on the CPU. It is understandable that because the CPU has the function of transmitting and receiving radio frequency signals, the space occupied by a chip can be saved inside the electronic device 100, thereby improving the utilization of the internal space of the electronic device 100.
  • the functions of transmitting and receiving radio frequency signals can also be integrated on other chips, such as battery management chips.
  • the radiator 42 is used to radiate the signal to the outside of the electronic device 100 when receiving the radio frequency signal transmitted by the radio frequency transceiver circuit 41.
  • the radiator 42 can also be used to receive signals external to the electronic device 100, convert the received signals into radio frequency signals, and transmit them to the radio frequency transceiver circuit 41.
  • the radiator 42 includes a first radiator 421 and a second radiator 422. Both the first radiator 421 and the second radiator 422 can be used to radiate and receive signals. Specifically, when a radio frequency signal is coupled and fed to the second radiator 422 via the first radiator 421, the first radiator 421 and the second radiator 422 respectively radiate signals to the outside of the electronic device 100 according to the radio frequency signal.
  • the second radiator 422 can also receive an external signal of the electronic device 100 and convert the signal into a radio frequency signal.
  • the radio frequency signal is coupled and fed to the first radiator 421 via the second radiator 422.
  • the first radiator 421 can transmit the radio frequency signal to the radio frequency transceiving circuit 41.
  • FIG. 3a is a schematic partial cross-sectional view of an implementation manner of the electronic device 100 shown in FIG. 1 at the line M-M.
  • the electronic device 100 further includes a stand 50.
  • the bracket 50 may be fixed on the side of the circuit board 30 away from the screen 20.
  • the support 50 may be a frame-shaped structure.
  • the bracket 50 is covered on the circuit board 30 and surrounds the circuit board 30 with a space S. Some electronic components on the circuit board 30 may be located in the space S. At this time, the bracket 50 can be used to protect electronic components.
  • the bracket 50 may also be plate-shaped or block-shaped.
  • the bracket 50 has a first surface 55 facing the rear cover 11.
  • the first radiator 421 is fixed on the first surface 55.
  • part of the bracket 50 forms an insulating part, and the material of the insulating part is an insulating material.
  • the first radiator 421 is formed on the insulating part by using laser direct structuring (LDS) technology.
  • LDS laser direct structuring
  • a conductive material for example, a metal material such as gold, silver, or copper, or graphene
  • the material of the bracket 50 may also be all insulating materials.
  • FIG. 3b is a schematic diagram of the structure of the back cover and the second radiator of the electronic device shown in FIG. 1.
  • the material of the back cover 11 may be an insulating material.
  • the back cover 11 has a second surface 115 facing the receiving space 13.
  • the second radiator 422 is fixed on the second surface 115.
  • the second radiator 422 is formed on the second surface 115 of the back cover 11 by LDS.
  • the back cover 11 may also include an insulating part and a conductive part connected to the insulating part. At this time, the second radiator 422 is fixed to the insulating part of the back cover 11.
  • conductive materials for example, metal materials such as gold, silver, or copper, or graphene
  • the conductive material forms the second radiator 422.
  • the back cover 11 has a surface facing away from the receiving space 13.
  • the second radiator 422 may also be fixed on the surface of the back cover 11 away from the receiving space 13.
  • the surface of the back cover 11 facing away from the receiving space 13 may be the surface of the back cover 11 exposed to the outside.
  • the second radiator 422 is fixed on the second surface 115, so that the second radiator 422 and the first radiator 421 are In other words, when the radio frequency transceiver circuit 41 transmits radio frequency signals, the radio frequency signals can be coupled and fed to the second radiator 422 through the first radiator 421.
  • the second radiator 422 radiates a signal to the outside of the electronic device 100.
  • the first radiator 421 and the second radiator 422 can generate a kind of resonance mode: convection mode, that is, common mode mode.
  • the first radiator 421 and the second radiator 422 may generate multiple resonance modes, such as a convection mode and a differential mode mode.
  • the radiator 42 of this embodiment can generate a convection mode.
  • SAR specific absorption rate
  • the antenna 40 further includes a first elastic piece 43 and a second elastic piece 44. Both the first elastic piece 43 and the second elastic piece 44 can be fixed to the circuit board 30.
  • the first elastic piece 43 is used to feed the radio frequency signal emitted by the radio frequency transceiver circuit 41 into the first radiator 421.
  • the second elastic piece 44 is used to ground the first radiator 421.
  • the contact point between the first elastic piece 43 and the first radiator 421 may be the feeding point B.
  • the contact point between the second elastic piece 44 and the first radiator 421 is the ground point A.
  • the feeding point B is not limited to the position shown in FIG. 3a below, and the feeding point B can also be located at any position on the first radiator 421.
  • the radio frequency signal transmitted by the radio frequency transceiver circuit 41 may also be fed into the first radiator 421 through the connector.
  • the first radiator 421 may also be grounded through a connector.
  • FIG. 4 is a schematic diagram of a part of the structure of the electronic device 100 shown in FIG. 1. 4 illustrates the positional relationship between the second radiator 422 and the first radiator 421 on the bracket 50 when the back cover 11 of the electronic device 100 is removed.
  • the position between the first radiator 421 and the second radiator 422 is not limited to the part of the second radiator 422 and the first radiator 421 as shown in FIG. No relative settings.
  • Fig. 5a is a schematic structural diagram of an embodiment of the radiator of the electronic device shown in Fig. 4.
  • Fig. 5b is a side view of the radiator shown in Fig. 5a.
  • the first radiator 421 includes a first feeding branch 4211.
  • the first feeding branch 4211 has a strip shape.
  • the second radiator 422 includes a first branch 4221, a second branch 4222, and a third branch 4911.
  • the first branch 4221 includes a head end 42211 and an end 42212.
  • the third branch 4911 includes a head end 49111 and an end 49112.
  • One end of the second branch 4222 is connected between the head 42211 and the end 42212 of the first branch 4221, and the other end is connected between the head 49111 and the end 49112 of the third branch 4911.
  • the head 42211 and the end 42212 of the first branch 4221 are located on both sides of the second branch 4222.
  • the head 49111 and the end 49112 of the third branch 4911 are located on both sides of the second branch 4222. It can be understood that the two sides of the second branch 4222 can be understood as the two sides of the second branch 4222 itself, and can also be understood as the two sides in the extending direction of the second branch 4222.
  • first stub 4221 and the first feeding stub 4211 are spaced apart and arranged opposite to each other.
  • a part of the second stub 4222 is spaced apart from and opposite to the first feeding stub 4211, and the other part is spaced apart from the first feeding stub 4211 but not arranged opposite to each other.
  • the third branch 4911 and the first feeding branch 4211 are spaced apart but not arranged opposite to each other.
  • the first stub 4221 has a reference plane 5 facing away from the second stub 4222.
  • the projection of the reference plane 5 on the plane P where the first feeding stub 4211 is located is the first projection b.
  • Figure 5a shows that the first projection b is a line.
  • the first projection b is located in the first feeding stub 4211.
  • the reference plane 5 may also be a curved surface, and the first projection b may be an arc or a region.
  • FIG. 5c is a top view of the radiator 42 shown in FIG. 5a.
  • the first feeding branch 4211 includes a first end surface 1 and a second end surface 2 disposed away from the first end surface 1.
  • the distance from the midpoint of the first end surface 1 to the grounding point A is the fifth value d5.
  • the distance from the midpoint of the second end surface 2 to the grounding point A is the sixth value d6.
  • the ratio of the fifth value d5 to the sixth value d6 is in the range of 0.3 to 3.
  • the first feeding stub 4211 has a quasi-symmetrical or symmetrical structure.
  • the ratio of the fifth value d5 to the sixth value d6 in this implementation is 1. In other implementation manners, the ratio of the fifth value d5 to the sixth value d6 may also be 0.3, 0.8, 1.2, 2.3, or 2.9.
  • the third branch 4911 includes a first branch 4223 and a second branch 4224. Both the first branch 4223 and the second branch 4224 are strip-shaped. The head end 42231 of the first branch 4223 is connected to the head 42241 of the second branch 4224. The first branch branch 4223 extends in a direction away from the reference plane 5. The second branch 4224 extends in a direction away from the reference plane 5.
  • FIG. 5c shows that the included angle a between the first branch node and the second branch node is 165°. In other embodiments, a satisfies 0° ⁇ a ⁇ 180°, that is, a may be 10°, 20°, 33°, 73°, 122°, 155°, or 180°.
  • the distance from the end face 3 of the first branch 4223 to the center of the reference plane 5 is the first value d1.
  • the center distance refers to the distance between the center of the end face 3 and the center of the reference plane 5.
  • the distance from the end face 4 of the second branch 4224 to the center of the reference plane 5 is the second value d2.
  • the ratio of the first value d1 to the second value d2 is in the range of 0.5 to 2.
  • the second radiator 422 has a quasi-symmetrical or symmetrical structure.
  • the ratio of the first value d1 to the second value d2 in this implementation is 1. In other implementation manners, the ratio of the first value d1 to the second value d2 may also be 0.8, 1.22, 1.5, or 2.
  • FIG. 6 is a diagram showing the relationship between the reflection coefficient (that is, the return loss) and the frequency of the radiator 42 shown in FIG. 5a in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 can generate two resonance frequencies between 0 and 6 GHz.
  • FIG. 6 shows that the two resonance frequencies generated by the first radiator 421 and the second radiator 422 are f1 and f2, respectively. It is understandable that this implementation manner is described by taking the frequency band 0 to 6 GHz as an example.
  • the two resonant frequencies that the first radiator 421 and the second radiator 422 can generate are f1 and f2, respectively.
  • the following implementation manners are also described by taking the frequency band 0 to 6 GHz as an example. It is understandable that the following implementation manners are also applicable to other frequency bands. The specific application is not restricted.
  • FIG. 7 is a schematic diagram of the current flow of the radiator 42 shown in FIG. 5a under the radio frequency signal with the frequency f1.
  • FIG. 8 is a schematic diagram of the current flow of the radiator 42 shown in FIG. 5a under a radio frequency signal with a frequency of f2.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first feeding branch 4211 has a first current flowing from the first end face 1 to the ground point A, and a second current flowing from the second end face 2 in the direction of the ground point A.
  • Fig. 7 illustrates the first current and the second current by solid lines with arrows.
  • the second radiator 422 when the second radiator 422 is disposed close to the first feeding stub 4211, the first feeding stub 4211 and the second radiator 422 can achieve strong coupling.
  • the second radiator 422 has a quasi-symmetrical or symmetrical structure, the second radiator 422 has a third current flowing from the end face 3 of the first branch 4223 to the second branch 4222, and the second branch 4222 The fourth current flows in the direction of the second branch 4222 from the end face 4 of the 4224.
  • Fig. 7 illustrates the third current and the fourth current through a dashed line with arrows.
  • the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is a convection mode.
  • the frequency f1 is the resonant frequency of the convection mode, that is, the first resonant frequency f1 shown in FIG. 6.
  • the resonant frequency f1 is mainly the resonant frequency generated by the first feeding branch 4211.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first feeding branch 4211 has a first current flowing from the first end face 1 to the ground point A, and a second current flowing from the second end face 2 in the direction of the ground point A.
  • Fig. 7 illustrates the first current and the second current by solid lines with arrows.
  • the second radiator 422 when the second radiator 422 is disposed close to the first radiator 421, the first feeding branch 4211 and the second radiator 422 can achieve strong coupling. In addition. Because the second radiator 422 has a quasi-symmetrical or symmetrical structure, the second radiator 422 has a third current flowing from the head end 42211 of the first branch 4221 to the end face 3 of the first bifurcated branch 4223, and the first The fourth current flows from the end 42212 of the stub 4221 to the end face 4 of the second bifurcated stub 4224.
  • Fig. 8 illustrates the third current and the fourth current through a dashed line with arrows.
  • the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is the convection mode.
  • the frequency f2 is the resonant frequency of the convection mode, that is, the first resonant frequency f2 shown in FIG. 6.
  • the resonance frequency f2 is mainly the resonance frequency generated by the second radiator 422.
  • the two resonance frequencies shown in FIG. 6 are both the resonance frequencies of the convection mode.
  • the first radiator 421 and the second radiator 422 of this implementation can generate two convection modes.
  • the first radiator 421 and the second radiator 422 when the first radiator 421 and the second radiator 422 receive radio frequency signals in the frequency range of 0 to 6 GHz, the first radiator 421 and the second radiator 422 can generate two convection modes in the frequency band.
  • the working frequency band of the antenna 40 is set near the resonant frequency of the convection mode, so that when the first radiator 421 and the second radiator 422 radiate signals, the signal has less influence on the user.
  • the first radiator 421 and the second radiator 422 can generate more than one convection mode in the range of 0 to 6 GHz, in the frequency range of 0 to 6 GHz, the resonant mode with a low absorption ratio covers a wider frequency band. In other words, there are more convection modes, and the working frequency band set near the resonance frequency is also wider.
  • the two resonance frequencies f1 and f2 generated by the first radiator 421 and the second radiator 422 can be any value from 0 to 6 GHz.
  • f1 can be 4GHz.
  • f2 can be 4.6GHz.
  • the size of the two resonant frequencies f1 and f2 is related to the length of the first feeding stub 4211, the length of the second stub 4222, the length of the first stub 4211, the length of the first bifurcation stub 4223, and the length of the second feeding stub 4211.
  • Factors such as the length of the forked branch 4224, the position of the feeding point B, or the external environment where the first radiator 421 and the second radiator 422 are located (for example, the fixed positions of the first radiator 421 and the second radiator 422) are related.
  • the length of the first feeding stub 4211, the length of the second stub 4222, the length of the first stub 4211, the length of the first branching stub 4223, the length of the second branching stub 4224, and the feeding point B Factors such as the location of the first radiator 421 and the external environment where the second radiator 422 are located can change the values of f1 and f2.
  • the first resonance frequency f1 can be changed from 4 GHz to 4.1 GHz.
  • the second resonance frequency is changed from 4.6 GHz to 4.5 GHz.
  • the length of the first feeding stub 4211, the length of the second stub 4222, and the length of the first stub 4211 are changed.
  • the length of the first branch 4223, the length of the second branch 4224, the ratio of the fifth value d5 to the sixth value d6, the ratio of the first value d1 to the second value d2, the position of the feeding point B, or Factors such as the external environment where the first radiator 421 and the second radiator 422 are located can also change the resonance frequency of the differential mode accordingly.
  • FIG. 9 is a schematic structural diagram of another implementation manner of the radiator 42 provided in an embodiment of the present application.
  • the shape of the first branch 4223 is arc.
  • the shape of the second branch 4224 is a strip.
  • the first branch 4221, the second branch 4222, the first branching branch 4223, and the second branching branch 4224 form a substantially "I" shape.
  • the first feeding branch 4211 and the second radiator 422 in this implementation manner can also generate two convection modes.
  • the principle of the two convection modes generated by the first feeding branch 4211 and the second radiator 422 is the same as the principle of the two convection modes generated by the first implementation manner, and details are not repeated here.
  • the shape of the first branch 4223 and the shape of the second branch 4224 can also be reversed.
  • FIG. 10 is a schematic structural diagram of another implementation manner of the radiator provided by an embodiment of the present application.
  • the second radiator 422 also includes a fourth branch 4225, a third branch 4226, and a fourth branch 4227.
  • the fourth branch 4225, the third branch 4226, and the fourth branch 4227 are located on the side of the first branch 4221 away from the second branch 4222.
  • the head 42261 of the third branch 4226 is connected to the head 42271 of the fourth branch 4227.
  • one end of the fourth branch 4225 is connected to the head 42261 of the third branch 4226 and the head 42271 of the fourth branch 4227, and the other end is connected to the reference plane 5.
  • the end 42262 of the third branch 4226 and the end 42272 of the fourth branch 4227 are located on both sides of the fourth branch 4225.
  • the third branch 4226 extends away from the reference plane 5.
  • the fourth branch 4227 extends away from the reference plane 5.
  • the second radiator 422 is in the shape of "king", or roughly in the shape of "king".
  • the two sides of the fourth branch 4225 can be understood as the two sides of the fourth branch 4225 itself, and can also be understood as the two sides in the extending direction of the fourth branch 4225.
  • the third branch 4226 and the fourth branch 4227 are strip-shaped.
  • the angle between the third branch 4226 and the fourth branch 4227 is also the same as the angle a between the first branch 4223 and the second branch 4224 in the first implementation.
  • the distance between the terminal end surface 42263 of the third branch 4226 and the center of the reference plane 5 is the third value d3.
  • the distance between the end end surface 42273 of the fourth branch 4227 and the center of the reference plane 5 is the fourth value d4.
  • the ratio of the third value d3 to the fourth value d4 may be in the range of 0.5 to 2.
  • the second radiator 422 further includes the fourth branch 4225, the third branch branch 4226, and the fourth branch branch 4227, the second radiator 422 still has a quasi-symmetric or symmetric structure.
  • the ratio of the third value d3 to the fourth value d4 is 1.
  • the ratio of the third value d3 to the fourth value d4 may also be 0.8, 1.22, 1.5, or 2.
  • FIG. 11 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 10 in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits radio frequency signals with a frequency range of 0 to 6 GHz
  • the radio frequency signals are transmitted to the first radiator 421 and the second radiator 422.
  • the first feeding branch 4211 and the second radiator 422 generate three resonance frequencies in this frequency band.
  • FIG. 11 shows that the three resonance frequencies generated by the first feeding branch 4211 and the second radiator 422 are f1, f2, and f3, respectively.
  • the formation principle of the first resonance frequency f1 and the second resonance frequency f2 is the same as the formation principle of the first resonance frequency f1 and the second resonance frequency f2 in the first implementation manner. I won't repeat it here.
  • the third resonance frequency f3 is mainly generated by the third branch 4226 and the fourth branch 4227.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the second radiator 422 has a current flowing from the head end 42211 of the first branch 4221 to the end face 42263 of the third branch 4226, and the end 42212 of the first branch 4221 The current flows on the end face 42273 of the fourth branch 4227.
  • the frequency f3 is the resonant frequency of the convection mode, that is, the third resonant frequency f3 shown in FIG. 11.
  • the three resonance frequencies f1, f2, and f3 generated by the first radiator 421 and the second radiator 422 can be any value from 0 to 6 GHz.
  • f1, f2, and f3 are 4 GHz, 4.6 GHz, and 5 GHz, respectively.
  • the third resonance frequency f3 is also changed. Will change. For example, under the same conditions, when the ratio of the third value d3 to the fourth value d4 is changed from 1 to 2, the third resonance frequency f3 can be changed from 5 GHz to 5.1 GHz.
  • the third branch branch 4226 and the fourth branch branch 4227 by connecting the fourth branch 4225, the third branch branch 4226, and the fourth branch branch 4227 on the side of the first branch 4221 away from the second branch 4222, the third branch branch 4226 and The fourth branch 4227 generates a third convection mode, that is, the number of convection modes generated by the first radiator 421 and the second radiator 422 is increased to three.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the working frequency band of the antenna may be the resonance frequency corresponding to the three convection modes, for example, the working frequency band is 3.8 GHz to 4.2 GHz, 4.4 GHz to 4.8 GHz, and 4.8 GHz to 5.2 GHz.
  • FIG. 12 is a schematic structural diagram of still another implementation manner of the radiator 42 provided in an embodiment of the present application.
  • the second radiator 422 also includes a fourth branch 4225, a third branch 4226, and a fourth branch 4227.
  • the fourth branch 4225, the third branch 4226, and the fourth branch 4227 are all located on the side of the first branch 4223 and the second branch 4224 away from the second branch 4222.
  • the head 42261 of the third branch 4226 is connected to the head 42271 of the fourth branch 4227.
  • One end of the fourth branch 4225 is connected to the head 42261 of the third branch 4226 and the head 42271 of the fourth branch 4227, and the other end is connected to the head 42231 of the first branch 4223 and the second branch.
  • the head end of the 4224 is 42241.
  • the end 42262 of the third branch 4226 and the end 42272 of the fourth branch 4227 are located on both sides of the fourth branch 4225.
  • the third branch 4226 extends away from the reference plane 5.
  • the fourth branch 4227 extends away from the reference plane 5.
  • the second radiator 422 is in the shape of "king", or roughly in the shape of "king".
  • the two sides of the fourth branch 4225 can be understood as the two sides of the fourth branch 4225 itself, and can also be understood as the two sides in the extending direction of the fourth branch 4225.
  • the third branch 4226 and the fourth branch 4227 are strip-shaped.
  • the angle between the third branch 4226 and the fourth branch 4227 is also the same as the angle a between the first branch 4223 and the second branch 4224 in the first implementation.
  • the distance between the terminal end surface 42263 of the third branch 4226 and the center of the reference plane 5 is the third value d3.
  • the distance between the end end surface 42273 of the fourth branch 4227 and the center of the reference plane 5 is the fourth value d4.
  • the ratio of the third value d3 to the fourth value d4 is in the range of 0.5 to 2.
  • the second radiator 422 further includes the fourth branch 4225, the third branch branch 4226, and the fourth branch branch 4227, the second radiator 422 still has a quasi-symmetric or symmetric structure.
  • the ratio of the third value d3 to the fourth value d4 is 1.
  • the ratio of the third value d3 to the fourth value d4 may also be 0.8, 1.22, 1.5, or 2.
  • the radio frequency transceiver circuit 41 transmits radio frequency signals with a frequency range of 0 to 6 GHz
  • the radio frequency signals are transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 will generate three resonant frequencies in this frequency band, and the three resonant frequencies are f1, f2, and f3.
  • the three resonance modes are also convective modes.
  • the formation principle of the first resonance frequency f1 and the second resonance frequency f2 is the same as the formation principle of the first resonance frequency f1 and the second resonance frequency f2 in the first implementation manner. I won't repeat it here.
  • the third resonance frequency f3 is mainly generated by the third branch 4226 and the fourth branch 4227.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the second radiator 422 has a current flowing from the fourth branch 4225 to the end face 42263 of the third branch branch 4226, and the end face of the fourth branch 4225 to the fourth branch branch 4227. 42273 Current flowing. It can be confirmed by the current distribution on the third branch 4226 and the fourth branch 4227 that the resonance mode generated by the third branch 4226 and the fourth branch 4227 is a convection mode.
  • the frequency f3 is the resonance frequency of the convection mode.
  • the three resonance frequencies f1, f2, and f3 generated by the first radiator 421 and the second radiator 422 can be any value from 0 to 6 GHz.
  • f1, f2, and f3 are 4 GHz, 4.6 GHz, and 5 GHz, respectively.
  • the third resonance frequency f3 is also changed. Will change. For example, under the same conditions, when the ratio of the third value d3 to the fourth value d4 is changed from 1 to 2, the third resonance frequency f3 can be changed from 5 GHz to 5.1 GHz.
  • the fourth branch 4225, the third branch 4226, and the fourth branch 4227 are connected on the side of the first branch 4223 and the second branch 4224 away from the second branch 4222, thereby
  • the third convection mode is generated by the current on the third branch 4226 and the fourth branch 4227, that is, the number of convection modes generated by the first radiator 421 and the second radiator 422 is increased to three.
  • the working frequency band of the antenna may be the resonance frequency of the three convection modes, for example, the working frequency band is 3.8 GHz to 4.2 GHz, 4.4 GHz to 4.8 GHz, and 4.8 GHz to 5.2 GHz.
  • FIG. 14 is a top view of the radiator shown in FIG. 13.
  • the shortest distance L between the first projection b of the reference plane 5 on the plane of the first feeding stub 4211 and the first feeding stub 4211 is in the range of 0 to 3 mm.
  • the first feeding branch 4211 is disposed close to the second radiator 422.
  • the shortest distance L in this implementation is 1 mm.
  • the shortest distance L may be 0 mm, 0.2 mm, 0.75 mm, 1.3 mm, or 2.6 mm.
  • FIG. 15 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 14 in the frequency range of 0 to 6 GHz.
  • the first radiator 421 and the second radiator 422 will generate two resonance modes in this frequency band, that is, the first A radiator 421 and a second radiator 422 can generate two resonance frequencies in this frequency band.
  • FIG. 15 shows that the two resonance frequencies generated by the first radiator 421 and the second radiator 422 are f1 and f2, respectively. It can be understood that the formation principles of the two convection modes in this implementation manner are the same as the formation principles of the first convection mode and the second convection mode in the first implementation manner. I won't repeat it here.
  • the two resonance frequencies f1 and f2 generated by the first radiator 421 and the second radiator 422 can be any value from 0 to 6 GHz.
  • f1 can be 4GHz.
  • f2 can be 4.6GHz.
  • the first radiator The two resonance frequencies f1 and f2 generated by the body 421 and the second radiator 422 also change, that is, the two resonance frequencies f1 and f2 can have other values.
  • the second resonance frequency f2 generated by the first radiator 421 and the second radiator 422 changes to 4.6 GHz and changes to 4.7 GHz.
  • the first radiator 421 and the second radiator 422 when the first radiator 421 and the second radiator 422 receive radio frequency signals in the frequency range of 0 to 6 GHz, the first radiator 421 and the second radiator 422 can generate a convection mode in the frequency band.
  • the working frequency band of the antenna 40 can be set around the resonant frequency of the convection mode, so that when the first radiator 421 and the second radiator 422 radiate signals, the signals radiated by the first radiator 421 and the second radiator 422 affect the user. Less affected.
  • the structure of the second radiator 422 is not limited to the structure shown in FIG. 13 and FIG. 14.
  • the structure of the second radiator 422 may also be any structure from the first implementation to the third implementation. The specific implementation is not limited.
  • FIG. 16 is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the first radiator 421 further includes a connecting stub 4212 and a second feeding stub 4213.
  • the second feeding branch 4213 includes a first end 42131 and a second end 42132 disposed away from the first end 42131.
  • One end of the connecting branch 4212 is connected between the first end surface 1 and the second end surface 2 of the first feeding branch 4211, and the other end is connected between the first end 42131 and the second end 42132.
  • the first end 42131 and the second end 42132 are located on both sides of the connecting branch 4212.
  • the two sides of the connecting stub 4212 can be understood as the two sides of the connecting stub 4212 itself, and can also be understood as the two sides in the extending direction of the connecting stub 4212.
  • the shapes of the first feeding stub 4211, the connecting stub 4212, and the second feeding stub 4213 are all strip-shaped.
  • the first radiator 421 is in the shape of "I", or roughly in the shape of "I”.
  • the shape of the connecting stub 4212 and the second feeding stub 4213 may also be other shapes.
  • the second feeding branch 4213 has an arc shape. This application does not make specific restrictions.
  • the distance between the center of the end surface 42133 of the first end 42131 and the ground point A is the seventh value d7.
  • the distance between the center of the end surface 42134 of the second end 42132 and the grounding point A is an eighth value d8.
  • the ratio of the seventh value d7 to the eighth value d8 is in the range of 0.3 to 3. In this implementation, the ratio of the seventh value d7 to the eighth value d8 is 1. In other implementation manners, the ratio of the seventh value d7 to the eighth value d8 may also be 0.5, 0.6, 2 or 2.5.
  • the radio frequency transceiver circuit 41 transmits radio frequency signals with a frequency range of 0 to 6 GHz
  • the radio frequency signals are transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 will generate three resonant frequencies in this frequency band, and the three resonant frequencies are f1, f2, and f3.
  • the three resonance modes are also convective modes.
  • the formation principle of the first resonance frequency f1 and the second resonance frequency f2 is the same as the formation principle of the first resonance frequency f1 and the second resonance frequency f2 in the first implementation manner. I won't repeat it here.
  • the third resonance frequency f3 is mainly generated by the second feeding stub 4213.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the second feeding stub 4213 has a current flowing from the connecting stub 4212 to both end faces of the second feeding stub 4213. It can be confirmed by the current distribution on the second feeding stub 4213 that the resonance mode generated by the second feeding stub 4213 is a convection mode.
  • the frequency f3 is the resonance frequency of the convection mode.
  • the third resonance frequency f3 generated by the second feeding branch 4213 can be any value in the frequency band of 0 to 6 GHz.
  • f3 is 5GHz.
  • the resonance frequency f3 of the third convection mode will also change, that is, the first The resonance frequencies of the three convection modes can also be other values.
  • the third convection mode is generated by the current on the connecting stub 4212 and the second feeding stub 4213 That is, the number of convection modes generated by the first radiator 421 and the second radiator 422 is increased to three.
  • the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider. In other words, the working frequency band of the antenna can be set to the surrounding frequency band where the resonance frequencies of the three convection modes are located.
  • the structure of the second radiator 422 is not limited to the structure shown in FIG. 16.
  • the second radiator 422 may also be any structure from the second implementation to the third implementation. The specific details are not repeated here.
  • FIG. 17 is another implementation manner of the electronic device 100 shown in FIG. 1 at the MM line Schematic cross-section.
  • the radiator 42 also includes a third radiator 423.
  • the third radiator 423 is located on a side of the second radiator 422 away from the first radiator 421.
  • the third radiator 423 is formed on the surface of the back cover 11 away from the receiving space 13 by LDS, that is, the third radiator 423 is formed on the outer surface of the back cover 11.
  • the first radiator 421 is formed on the first surface 55 of the bracket 50.
  • the second radiator 422 is formed on the second surface 115 of the back cover 11.
  • the third radiator 423 can also be formed in other ways. For example, by forming a conductive material (for example, a metal material such as gold, silver, or copper, or graphene) on the surface of the back cover 11 away from the receiving space 13, the conductive material forms the third radiator 423.
  • a conductive material for example, a metal material such as gold, silver, or copper, or graphene
  • FIG. 18 is a schematic structural diagram of the radiator 42 of the electronic device 100 shown in FIG. 17.
  • the third radiator 423 includes a fifth branch 4231 and a sixth branch 4232.
  • the head end 42311 of the fifth branching branch 4231 and the head end 42321 of the sixth branching branch 4232 are connected to each other.
  • the fifth bifurcated limb 4231 extends in a direction away from the head end 42321 of the sixth bifurcated limb 4232.
  • the sixth bifurcated limb 4232 extends in a direction away from the head end 42311 of the fifth bifurcated limb 4231.
  • the projection portion of the third radiator 423 on the first radiator 421 is located in the first radiator 421. In other embodiments, the projection of the third radiator 423 on the first radiator 421 may also be entirely located in the first radiator 421.
  • the center distance between the head end surface 42313 and the end end surface 42314 of the fifth branch segment 4231 is a ninth value d9.
  • the center distance between the head end surface 42323 and the end end surface 42324 of the sixth branch 4232 is a tenth value d10.
  • the ratio of the ninth value d9 to the tenth value d10 is in the range of 0.5 to 2.
  • the third radiator 423 has a quasi-symmetrical or symmetrical structure.
  • the ratio of the ninth value d9 to the tenth value d10 is 1.
  • the ratio of the ninth value d9 to the tenth value d10 may also be 0.8, 1.22, 1.5, or 2.
  • FIG. 19 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 18 in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits radio frequency signals with a frequency range of 0 to 6 GHz
  • the radio frequency signals are transmitted to the first feeding branch 4211, the second radiator 422, and the third radiator 423.
  • the first feeding branch 4211, the second radiator 422, and the third radiator 423 generate three resonance frequencies in this frequency band.
  • FIG. 19 shows that the three resonance frequencies generated by the first feeding branch 4211, the second radiator 422, and the third radiator 423 are f1, f2, and f3, respectively.
  • the formation principle of the first resonance frequency f1 and the second resonance frequency f2 is the same as the formation principle of the first resonance frequency f1 and the second resonance frequency f2 in the first implementation manner. I won't repeat it here.
  • the third resonance frequency f3 is mainly a resonance mode generated by the third radiator 423.
  • the radio frequency transceiver circuit 41 transmits radio frequency signals with a frequency range of 0 to 6 GHz
  • the radio frequency signals are transmitted to the first feeding branch 4211, the second radiator 422, and the third radiator 423.
  • the third radiator 423 has a current flowing from the head end 42311 of the fifth bifurcation stub 4231 to the end 42312 and the head end 42321 of the sixth bifurcation stub 4232 to the end 42322. It can be confirmed by the current distribution on the third radiator 423 that the resonance mode generated by the third radiator 423 is a convection mode.
  • the frequency f3 is the resonant frequency of the convection mode, that is, the third resonant frequency f3 shown in FIG. 19.
  • the three resonance frequencies f1, f2, and f3 generated by the first feeding branch 4211, the second radiator 422, and the third radiator 423 can be any value from 0 to 6 GHz.
  • f1, f2, and f3 are 4 GHz, 4.6 GHz, and 5 GHz, respectively.
  • the third resonance frequency f3 also changes.
  • the third resonance frequency f3 can be changed from 5 GHz to 5.1 GHz.
  • the third radiator 423 is provided on the side of the second radiator 422 away from the first radiator 421, so that the current on the third radiator 423 is used to generate the third convection mode, that is, the first convection mode.
  • the number of convection modes generated by the radiator 421, the second radiator 422, and the third radiator 423 is increased to three.
  • the working frequency band of the antenna may be the surrounding frequency band where the resonance frequencies of the three convection modes are located.
  • the working frequency band is 3.8 GHz to 4.2 GHz, 4.4 GHz to 4.8 GHz, and 4.8 GHz to 5.2 GHz.
  • the structure of the first radiator 421 is not limited to the structure shown in FIG. 18.
  • the structure of the first radiator 421 may also be the structure of the first radiator 421 in the fifth implementation manner.
  • the structure of the second radiator 422 is not limited to the structure illustrated in FIG. 18.
  • the structure of the second radiator 422 may also be any structure from the second implementation to the third implementation. The specific implementation is not limited.
  • the third radiator 423 may also have a multi-branched structure, for example, the shape of the third radiator 423 is a "I" shape or a "king" shape.
  • FIG. 20a is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the shortest distance L between the projection of the third radiator 423 of the first radiator 421 and the first radiator 421 is in the range of 0 to 3 millimeters.
  • L may be 0 mm, 0.2 mm, 0.75 mm, 1.3 mm, or 2.6 mm.
  • the first radiator 421, the second radiator 422, and the third radiator 423 can also generate three convection modes. It can be understood that the formation principle of the three convection modes in this implementation manner is the same as the formation principle of the three convection modes in the sixth implementation manner. I won't repeat it here.
  • FIG. 20b is a schematic cross-sectional view of another implementation manner of the electronic device 100 shown in FIG. 1 at the M-M line.
  • the radiator 42 may further include a fourth connecting branch 424.
  • the fourth connecting branch 424 is connected between the third radiator 423 and the second radiator 422.
  • a through hole 111 may be opened in the back cover 11.
  • the through hole 111 penetrates the inner surface and the outer surface of the back cover 11.
  • the fourth connecting branch 424 is located in the through hole 111.
  • the fourth connecting branch 424 can connect the third radiator 423 to the second radiator.
  • FIG. 21 is a schematic structural diagram of another implementation manner of the radiator 42 provided in an embodiment of the present application.
  • the first radiator 421 has a feeding point B and does not have a grounding point A.
  • the definition of the fifth value d5 and the sixth value d6 in this implementation manner is different from the definition of the fifth value d5 and the sixth value d6 in the first implementation manner.
  • the distance between the center of the first end surface 1 and the feeding point B of the first feeding stub 4211 is the fifth value d5.
  • the distance between the center of the second end surface 2 and the feeding point B is a sixth value d6.
  • the ratio of the fifth value d5 to the sixth value d6 is in the range of 0.3 to 3.
  • the first radiator 421 also has a quasi-symmetric or symmetric structure.
  • the ratio of the fifth value d5 to the sixth value d6 in this implementation is 1.
  • the ratio of the fifth value d5 to the sixth value d6 may also be 0.3, 0.8, 1.2, 2.3, or 2.9.
  • the first feeding stub 4211 and the second radiator 422 will generate two signals in the frequency band.
  • Two resonant modes that is, the first feeding branch 4211 and the second radiator 422 can generate two resonant frequencies in this frequency band, and the two resonant frequencies are f1 and f2, respectively.
  • the first feeding branch 4211 has a first current flowing from the first end face 1 to the feeding point B, and a second current flowing from the second end face 2 in the direction of the feeding point B .
  • the current distribution on the second radiator 422 is the same as the current distribution on the second radiator 422 of the first embodiment. Therefore, it can be confirmed by the current distribution on the first feeding branch 4211 and the second radiator 422 that at the frequency f1, the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is a convection mode.
  • the frequency f1 is the resonance frequency of the convection mode.
  • the first feeding branch 4211 has a first current flowing from the first end face 1 to the feeding point B, and a second current flowing from the second end face 2 in the direction of the feeding point B.
  • the current distribution on the second radiator 422 is the same as the current distribution on the second radiator 422 of the first embodiment. Therefore, it can be confirmed by the current distribution on the first feeding branch 4211 and the second radiator 422 that at the frequency f2, the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is the convection mode.
  • the frequency f2 is the resonance frequency of the convection mode.
  • the structure of the first radiator 421 is not limited to the structure shown in FIG. 21.
  • the structure of the first radiator 421 may also be the structure of the first radiator 421 in the fifth implementation manner.
  • the structure of the second radiator 422 is not limited to the structure illustrated in FIG. 21.
  • the structure of the second radiator 422 may also be any structure from the second implementation to the third implementation. The specific details are not repeated here.
  • the radiator 42 may also include a third radiator 423.
  • the positional relationship between the first radiator 421 and the second radiator 422 can also refer to the fourth implementation manner. I won’t go into details here.
  • the first radiator 421 may be an inverted-F antenna (Inverted-F Antenna, IFA), or may also be a composite right/left handed antenna (CRLH).
  • IFA Inverted-F Antenna
  • CTLH composite right/left handed antenna
  • FIG. 23 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 22 in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 will generate three resonance modes in this frequency band, that is, the first radiator 421 and the second radiator 422 can generate three resonance frequencies in this frequency band.
  • FIG. 23 shows that the resonance frequencies generated by the first radiator 421 and the second radiator 422 are f1, f2, and f3, respectively.
  • the first resonance mode can be a quarter mode
  • the second resonance mode is The convection mode and the third resonance mode are differential mode.
  • the first radiator 421 and the second radiator 422 when the first radiator 421 and the second radiator 422 receive radio frequency signals in the frequency range of 0 to 6 GHz, the first radiator 421 and the second radiator 422 can generate a convection mode in the frequency band.
  • the working frequency band of the antenna 40 may be around the resonance frequency of the convection mode, so that when the first radiator 421 and the second radiator 422 radiate signals, the first radiator 421 and the second radiator 422 radiate signals The impact on users is small.
  • the structure of the second radiator 422 is not limited to the structure shown in FIG. 22.
  • the structure of the second radiator 422 may also be any structure from the second implementation to the third implementation. Specifically, I won't go into details here.
  • the positional relationship between the first radiator 421 and the second radiator 422 may also be the position indicated in the fourth implementation manner.
  • the radiator 42 may also include a third radiator 423. For the setting manner of the third radiator 423, refer to the sixth implementation manner, and the details are not repeated here.
  • FIG. 24 is a schematic structural diagram of still another implementation manner of the radiator 42 provided in an embodiment of the present application.
  • the first radiator 421 is a loop antenna.
  • the shape of the first radiator 421 is in the shape of " ⁇ ", or roughly in the shape of " ⁇ ".
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 will generate three resonance modes in this frequency band, that is, the first radiator 421 and the second radiator 422 can generate three resonance frequencies in this frequency band, respectively f1 and f2 And f3.
  • the first resonance mode can be a quarter mode
  • the second resonance mode is The convection mode and the third resonance mode are differential mode.
  • the first radiator 421 and the second radiator 422 when the first radiator 421 and the second radiator 422 receive radio frequency signals in the frequency range of 0 to 6 GHz, the first radiator 421 and the second radiator 422 can generate a convection mode in the frequency band.
  • the working frequency band of the antenna 40 may be around the resonance frequency of the convection mode, so that when the first radiator 421 and the second radiator 422 radiate signals, the first radiator 421 and the second radiator 422 radiate signals The impact on users is small.
  • the position of the second radiator 422 is not limited to one end of the first radiator 421 as shown in FIG. 24, and the position of the second radiator 422 can also be opposite to any of the first radiator 421. One location.
  • the structure of the second radiator 422 is not limited to the structure shown in FIG. 24.
  • the structure of the second radiator 422 may also be any structure from the second implementation to the third implementation. Specifically, I won't go into details here.
  • the positional relationship between the first radiator 421 and the second radiator 422 may also be the position shown in the fourth implementation manner.
  • the radiator 42 may also include a third radiator 423. For the setting manner of the third radiator 423, refer to the sixth implementation manner, and the details are not repeated here.
  • FIG. 25a is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the second radiator 422 includes a first branch 4221, a first bifurcated branch 4223 and a second bifurcated branch 4224.
  • the head end 42231 of the first branch 4223 and the head 42241 of the second branch 4224 are connected to the first branch 4221.
  • the end 42232 of the first branch 4223 and the end 42242 of the second branch 4224 are located on both sides of the first branch 4221.
  • the second radiator 422 has a "Y" shape, or roughly a "T" shape.
  • the two sides of the first branch 4221 can be understood as the two sides of the first branch 4221 itself, and can also be understood as the two sides in the extending direction of the first branch 4221.
  • first branch 4221 has a reference plane 5 facing away from the first branch 4223 and the second branch 4224.
  • the projection of the reference plane 5 on the first feeding stub 4211 partially overlaps with the first feeding stub 4211. In other embodiments, the projection of the reference plane 5 on the first feeding stub 4211 and the first feeding stub 4211 may also be completely overlapped.
  • the distance from the end face 3 of the first branch 4223 to the center of the reference plane 5 is the first value d1.
  • the distance from the end face 4 of the second branch 4224 to the center of the reference plane 5 is the second value d2.
  • the ratio of the first value d1 to the second value d2 is in the range of 0.5 to 2.
  • the second radiator 422 has a quasi-symmetrical or symmetrical structure.
  • the ratio of the first value d1 to the second value d2 in this implementation is 1. In other implementation manners, the ratio of the first value d1 to the second value d2 may also be 0.8, 1.22, 1.5, or 2.
  • the first radiator 421 and the second radiator 422 will generate two signals in the frequency band.
  • the resonant mode that is, the first radiator 421 and the second radiator 422 can generate two resonant frequencies in this frequency band.
  • the two resonance modes are both convective modes.
  • the formation principles of the two convection modes are the same as the formation principles of the first convection mode and the second convection mode in the first implementation manner. I won't repeat it here.
  • FIG. 25b is a schematic structural diagram of still another implementation manner of the radiator provided in an embodiment of the present application.
  • the shortest distance L of the reference plane 5 between the projection of the first feeding stub 4211 and the first feeding stub 4211 is in the range of 0 to 3 mm.
  • the shortest distance L in this implementation is 1 mm.
  • the shortest distance L may be 0 mm, 0.2 mm, 0.75 mm, or 1.3 mm.
  • the current on the first feeding stub 4211 and the second radiator 422 can also generate two convections. mode.
  • the formation principle of the first convection mode is the same as the formation principle of the first convection mode in the tenth implementation manner.
  • the formation principle of the second convection mode is the same as the formation principle of the second convection mode in the tenth implementation manner. I won't repeat it here.
  • the second resonance frequency f2 will also change, that is, the second resonance frequency f2 can have other values.
  • FIG. 25c is a schematic structural diagram of another implementation manner of the radiator 42 provided by an embodiment of the present application .
  • the second radiator 422 includes a first branch 4223 and a second branch 4224.
  • the head end 42231 of the first branch 4223 and the head 42241 of the second branch 4224 are connected to each other.
  • the first forked limb 4223 extends in a direction away from the head end 42241 of the second forked limb 4224.
  • the second bifurcated limb 4224 extends in a direction away from the head end 42231 of the first bifurcated limb 4223.
  • both the first branch 4223 and the second branch 4224 are in a strip shape.
  • the second radiator 422 is in a "V" shape, or roughly in a "V” shape.
  • the projection portion of the second radiator 422 on the first radiator 421 is located in the first radiator 421. In other embodiments, the projections of the second radiator 422 on the first radiator 421 are all located in the first radiator 421.
  • the center distance between the head end face 1 and the end end face 3 of the first bifurcated branch 4223 is a first value d1.
  • the center distance between the head end surface 2 and the end end surface 4 of the second bifurcated branch 4224 is a second value d2.
  • the ratio of the first value d1 to the second value d2 is in the range of 0.5 to 2.
  • the ratio of the first value d1 to the second value d2 in this implementation is 1. In other implementation manners, the ratio of the first value d1 to the second value d2 may also be 0.8, 1.22, 1.5, or 2.
  • FIG. 26 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 25c in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 can generate two resonance frequencies between 0 and 6 GHz.
  • FIG. 26 shows that the two resonance frequencies generated by the first radiator 421 and the second radiator 422 are f1 and f2, respectively.
  • the formation principle of the first resonance frequency f1 is the same as the formation principle of the first resonance frequency f1 in the first implementation manner. I won't repeat it here.
  • the second resonance frequency is mainly generated by the second radiator 422.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the second radiator 422 can flow from the head end 42231 of the first bifurcation branch 4223 to the end end surface 3, and the head end 2 of the second bifurcation branch 4224 flows to the end end surface 4.
  • Current it can be confirmed from the current distribution on the second radiator 422 that the resonance mode generated by the second radiator 422 is a convection mode.
  • the frequency f2 is the resonant frequency of the convection mode, that is, the second resonant frequency f2 shown in FIG. 26.
  • the two resonance frequencies f1 and f2 generated by the first radiator 421 and the second radiator 422 can be any value from 0 to 6 GHz.
  • f1 and f2 are 4GHz and 5GHz, respectively.
  • the second resonance frequency f2 will also change, that is, the second resonant frequency f2 will also change.
  • the two resonance frequencies f2 are other values.
  • the first radiator 421 and the second radiator 422 when the first radiator 421 and the second radiator 422 receive radio frequency signals in the frequency range of 0 to 6 GHz, the first radiator 421 and the second radiator 422 can generate a convection mode in the frequency band.
  • the working frequency band of the antenna 40 may be around the resonant frequency of the convection mode, so that when the first radiator 421 and the second radiator 422 radiate signals, the signals radiated by the first radiator 421 and the second radiator 422 pair The user's influence is small.
  • the first radiator 421 and the second radiator 422 can generate more than one convection mode in the range of 0 to 6 GHz, in the frequency range of 0 to 6 GHz, the resonant mode with a low absorption ratio covers a wider frequency band. Therefore, the working frequency range of the antenna is wider.
  • the structure of the first radiator 421 is not limited to the structure shown in FIG. 25c.
  • the structure of the first radiator 421 may also be the structure of the first radiator 421 in the fifth implementation manner. Specifically, I won't go into details here.
  • the radiator 42 may also include a third radiator 423.
  • the first radiator 421 may also have a feeding point B but not a grounding point A. At this time, the setting manner of the first radiator 421 can refer to the seventh implementation manner, and the details will not be repeated here.
  • FIG. 27a is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • Both the first branch 4223 and the second branch 4224 are arc-shaped.
  • the shape of the second radiator 422 is also arc-shaped. It can be understood that when a radio frequency signal with a frequency of 0 to 6 GHz is fed to the first radiator 421 and the second radiator 422, the current on the first radiator 421 and the second radiator 422 can also generate two convections. mode.
  • first convection mode is the same as the formation principle of the first convection mode in the first implementation manner.
  • second convection mode is the same as the formation principle of the second convection mode in the eleventh implementation manner. I won't repeat it here.
  • FIG. 27b is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the shortest distance L between the projection of the second radiator 422 on the first radiator 421 and the first radiator 421 is in the range of 0 to 3 millimeters.
  • the shortest distance L in this implementation is 1 mm.
  • the shortest distance L may be 0 mm, 0.2 mm, 0.75 mm, or 1.3 mm.
  • the current on the first radiator 421 and the second radiator 422 can also generate two convection modes.
  • first convection mode is the same as the formation principle of the first convection mode in the first implementation manner.
  • second convection mode is the same as the formation principle of the second convection mode in the eleventh implementation manner. I won't repeat it here.
  • the second resonance frequency f2 will also change, that is, the second resonance frequency f2 can have other values.
  • FIG. 28 is another implementation manner of the radiator 42 provided by the embodiment of the present application.
  • FIG. 29 is a schematic diagram of the structure of the radiator 42 shown in FIG. 28 at another angle.
  • the first radiator 421 and the second radiator 422 are coupled, that is, the radio frequency signal can be coupled and fed to the second radiator 422 via the first radiator 421.
  • the first radiator 421 includes a first end surface 1 and a second end surface 2 disposed away from the first end surface 1.
  • the second radiator 422 includes a third end surface 3 and a fourth end surface 4 disposed away from the third end surface 3.
  • the first end surface 1 is located between the third end surface 3 and the fourth end surface 4.
  • the second end surface 2 is located between the first end surface 1 and the fourth end surface 4.
  • the projection of the second radiator 422 on the first radiator 421 is the first projection.
  • the first projection is partially overlapped with the first radiator 421.
  • the first projection and the first radiator 421 all overlap, that is, the first radiator 421 is located in the first projection.
  • the center distance between the first end surface 1 and the third end surface 3 is the first value d1.
  • the center distance between the second end surface 2 and the fourth end surface 4 is a second value d2.
  • the ratio of the first value d1 to the second value d2 is in the range of 0.5 to 2.
  • the ratio of the first value d1 to the second value d2 in this implementation is 1. In other implementation manners, the ratio of the first value d1 to the second value d2 may also be 0.8, 1.22, 1.5, or 2.
  • FIG. 30a is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 28 in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 will generate a resonant mode in this frequency band, that is, the first radiator 421 and the second radiator 422 can generate a resonant frequency in this frequency band.
  • FIG. 30a shows that the resonance frequency generated by the first radiator 421 and the second radiator 422 is f1.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the second radiator 422 can generate a current flowing from the third end surface 3 and the fourth end surface 4 to the middle of the second radiator 422. Therefore, it can be confirmed by the current distribution on the second radiator 422 that at the frequency f1, the resonance mode generated by the second radiator 422 is the convection mode.
  • the frequency f1 is the resonant frequency of the convection mode, that is, the resonant frequency f1 shown in FIG. 30a.
  • the second radiator 422 when the first radiator 421 and the second radiator 422 receive a radio frequency signal with a frequency band of 0 to 6 GHz, the second radiator 422 can generate a convection mode in the frequency band.
  • the working frequency band of the antenna 40 may be the resonant frequency of the convection mode, so that when the second radiator 422 radiates signals, the signals radiated by the first radiator 421 and the second radiator 422 have less influence on the user.
  • the resonance frequency f1 can be any value from 0 to 6 GHz.
  • f1 is 5GHz.
  • the resonance frequency f1 will also change.
  • the radiator 42 may also include a third radiator 423.
  • the first radiator 421 may also have a feeding point B but not a grounding point A. At this time, the setting manner of the first radiator 421 can refer to the seventh implementation manner, and the details will not be repeated here.
  • FIG. 30b is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the shortest distance between the projection of the second radiator 422 on the first radiator 421 and the first feeding stub 4211 is in the range of 0 to 3 millimeters.
  • the shortest distance L in this implementation is 1 mm. In other implementations, the shortest distance L may be 0 mm, 0.2 mm, 0.75 mm, or 1.3 mm.
  • the forming principle of the convection mode is the same as the forming principle of the convection mode in the twelfth implementation manner. I won't repeat it here.
  • the resonance frequency f1 generated by the first radiator 421 and the second radiator 422 can be any value from 0 to 6 GHz.
  • f1 can be 4GHz.
  • the specific size of the resonance frequency f1 is related to the shortest distance L and the length of the second radiator 422.
  • FIG. 31 is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the first radiator 421 includes a first end surface 1 and a second end surface 2 disposed away from the first end surface 1.
  • the second radiator 422 includes a third end surface 3 and a fourth end surface 4 disposed away from the third end surface 3.
  • the third end surface 3 is located between the first end surface 1 and the second end surface 2.
  • the fourth end surface 4 is located on the side of the first end surface 1 facing away from the third end surface 3.
  • the projection of the second radiator 422 on the first radiator 421 partially overlaps with the first radiator 421.
  • the center distance between the first end surface 1 and the second end surface 2 is a first value d1.
  • the center distance between the third end surface 3 and the fourth end surface 4 is the second value d2.
  • the ratio of the first value d1 to the second value d2 is in the range of 0.5 to 2.
  • the radiator 42 has a quasi-symmetrical or symmetrical structure.
  • the ratio of the first value d1 to the second value d2 in this implementation is 1.
  • the ratio of the first value d1 to the second value d2 may also be 0.8, 1.22, 1.5, or 2.
  • FIG. 32 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 31 in the frequency range of 0 to 6 GHz.
  • FIG. 33a is a schematic diagram of the current flow of the radiator 42 shown in FIG. 31 at a frequency f1.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 will generate a resonant mode in this frequency band, that is, the first radiator 421 and the second radiator 422 can generate a resonant frequency in this frequency band.
  • FIG. 32 shows that the resonance frequency generated by the first radiator 421 and the second radiator 422 is f1.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency band of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 can generate a current flowing from the second end surface 2 to the first end surface 1
  • the second radiator 422 can generate a current flowing from the fourth end surface 4 to the third end surface 3.
  • Current flowing in the direction Therefore, it can be confirmed by the current distribution on the first radiator 421 and the second radiator 422 that at the frequency f1, the resonance mode generated by the first radiator 421 and the second radiator 422 is a convection mode.
  • the frequency f1 is the resonance frequency of the convection mode, that is, the resonance frequency f1 shown in FIG. 32.
  • the second radiator 422 when the first radiator 421 and the second radiator 422 receive a radio frequency signal with a frequency band of 0 to 6 GHz, the second radiator 422 can generate a convection mode in the frequency band.
  • the working frequency band of the antenna 40 may be the resonant frequency of the convection mode, so that when the second radiator 422 radiates signals, the signals radiated by the first radiator 421 and the second radiator 422 have little influence on the user.
  • the resonance frequency f1 can be any value from 0 to 6 GHz.
  • f1 is 5GHz.
  • the resonance frequency f1 will also change.
  • the radiator 42 may also include a third radiator 423.
  • the first radiator 421 may also have a feeding point B but not a grounding point A. At this time, the setting manner of the first radiator 421 can refer to the seventh implementation manner, and the details will not be repeated here.
  • FIG. 33b is a schematic structural diagram of still another implementation manner of the radiator 42 provided by an embodiment of the present application.
  • the shortest distance between the projection of the second radiator 422 on the first radiator 421 and the first radiator 421 is in the range of 0 to 3 millimeters.
  • the shortest distance L in this implementation is 1 mm. In other implementations, the shortest distance L may be 0 mm, 0.2 mm, 0.75 mm, or 1.3 mm.
  • the formation principle of the convection mode is the same as the formation principle of the convection mode in the thirteenth implementation manner. I won't repeat it here.
  • the resonance frequency when the shortest distance L has other values, the resonance frequency will also change, that is, the resonance frequency can be other values, for example, when the shortest distance L is 1.2 mm, the resonance frequency is 4.4 GHz.
  • the first embodiment is specifically described above.
  • the first radiator 421 of the radiator 42 is formed on the surface of the bracket 50 facing the rear cover 11, that is, the first surface 55.
  • the second radiator 422 is formed on the surface of the back cover 11 facing the receiving space 13, that is, the second surface 115. At this time, signals are radiated to the outside of the electronic device 100 through the first radiator 421 and the second radiator 422.
  • several other embodiments will be described in detail in conjunction with related drawings, that is, several ways of setting the first radiator 421 and the second radiator 422.
  • FIG. 34 is a schematic cross-sectional view of another implementation of the electronic device 100 shown in FIG. 1 at the MM line .
  • the back cover 11 is made of insulating material.
  • the first radiator 421 is fixed on the surface of the back cover 11 facing the receiving space 13.
  • the first radiator 421 is formed on the surface of the back cover 11 facing the receiving space 13 by LDS.
  • a flexible circuit board may be pasted on the surface of the back cover 11 facing the receiving space 13, thereby forming the first radiator 421 on the flexible circuit board.
  • FIG. 34 shows a bracket 50.
  • the electronic device 100 may not be provided with the bracket 50.
  • the antenna 40 further includes a first elastic piece 43 and a second elastic piece 44.
  • the first elastic piece 43 is fixed to the circuit board 30.
  • the first elastic piece 43 is used to feed the radio frequency signal emitted by the radio frequency transceiver circuit 41 into the first radiator 421.
  • the second elastic piece 44 is used to ground the first radiator 421.
  • the radio frequency signal transmitted by the radio frequency transceiver circuit 41 may also be fed into the first radiator 421 through the connector.
  • the second elastic piece 44 may also be grounded through a connector.
  • the first radiator 421 may not be grounded through the second elastic piece 44, that is, the first radiator 421 is not grounded.
  • the second radiator 422 is fixed on the surface of the back cover 11 away from the receiving space 13, that is, the second radiator 422 is formed on the outer surface of the back cover 11.
  • the second radiator 422 is formed on the surface of the back cover 11 away from the receiving space 13 by LDS.
  • the flexible circuit board may be pasted on the surface of the back cover 11 away from the receiving space 13 to form the second radiator 422 on the flexible circuit board.
  • the second radiator 422 is fixed on the surface of the back cover 11 facing away from the containing space 13, so that the second radiator 422 and the first radiator
  • the bodies 421 are arranged at intervals, and when the radio frequency transceiver circuit 41 transmits radio frequency signals, the radio frequency signals are fed to the second radiator 422 through the first radiator 421.
  • the first radiator 421 and the second radiator 422 respectively radiate signals to the outside of the electronic device 100 according to the radio frequency signal.
  • FIG. 35 is a cross-sectional schematic diagram of another implementation manner of the electronic device shown in FIG. 1 at the M-M line.
  • the material of the bracket 50 is an insulating material.
  • the first radiator 421 is formed on the surface of the bracket 50 facing the circuit board 30.
  • LDS is used to form the first radiator 421 on the surface of the bracket 50 facing the circuit board 30.
  • the flexible circuit board may be adhered to the surface of the bracket 50 facing the circuit board 30 to form the first radiator 421 on the flexible circuit board.
  • the antenna further includes a first elastic piece 43 and a second elastic piece 44.
  • the first elastic piece 43 is fixed to the circuit board 30.
  • the first elastic piece 43 is used to feed the radio frequency signal emitted by the radio frequency transceiver circuit 41 into the first radiator 421.
  • the second elastic piece 44 is used to ground the first radiator 421.
  • the radio frequency signal transmitted by the radio frequency transceiver circuit 41 may also be fed into the first radiator 421 through the connector.
  • the second elastic piece 44 may also be grounded through a connector.
  • the first radiator 421 may not be grounded through the second elastic piece 44, that is, the first radiator 421 is not grounded.
  • the second radiator 422 is formed on the surface of the bracket 50 facing the rear cover 11.
  • LDS is used to form the second radiator 422 on the surface of the bracket 50 facing the rear cover 11.
  • the flexible circuit board may be adhered to the surface of the bracket 50 facing the back cover 11 to form the second radiator 422 on the flexible circuit board.
  • the second radiator 422 is formed on the surface of the bracket 50 facing the back cover 11, so that the second radiator 422 and the first radiator 421 are It is arranged at intervals, and when the radio frequency transceiver circuit 41 transmits radio frequency signals, the radio frequency signals are fed to the second radiator 422 through the first radiator 421.
  • the first radiator 421 and the second radiator 422 respectively radiate signals to the outside of the electronic device 100 according to the radio frequency signal.
  • the second radiator 422 may also be formed on the surface of the rear cover 11 facing the receiving space 13, or the second radiator 422 may also be formed on the surface of the rear cover 11 facing away from the receiving space 13.
  • FIG. 36 is a schematic structural diagram of another implementation manner of the electronic device 100 according to an embodiment of the present application.
  • FIG. 37 is a schematic cross-sectional view of the electronic device 100 shown in FIG. 36 along the line N-N.
  • the material of the frame 12 may be a metal material.
  • the frame 12 includes a first long frame 121 and a second long frame 122 disposed opposite to each other, and a first short frame 123 and a second short frame 124 disposed opposite to each other.
  • the first short frame 123 and the second short frame 124 are connected between the first long frame 121 and the second long frame 122.
  • a first antenna slot 125 and a second antenna slot 126 are respectively provided on the first long frame 121 of the frame 12. At this time, the first antenna slot 125 and the second antenna slot 126 isolate part of the first long frame 121 into a section of metal. This metal part forms the first radiator 421 of the radiator 42.
  • the material of the back cover 11 may be an insulating material.
  • a second radiator 422 is formed on the surface of the bracket 50 facing the first long frame 121.
  • LDS is used to form the second radiator 422 on the surface of the bracket 50 facing the first long frame 121.
  • the flexible circuit board may be adhered to the surface of the bracket 50 facing the first long frame 121 to form the second radiator 422 on the flexible circuit board.
  • the second radiator 422 is formed on the surface of the bracket 50 facing the first long frame 121, so that the second radiator 422 is spaced from the first radiator 421
  • the radio frequency signals are fed to the second radiator 422 through the first radiator 421.
  • the first radiator 421 and the second radiator 422 respectively radiate signals to the outside of the electronic device 100 according to the radio frequency signal.
  • the insulating material can connect the isolated metal part to the unisolated metal part in the first long frame 121 on the one hand, Therefore, the integrity of the first long frame 121 is ensured, and the appearance of the electronic device 100 is prevented from affecting the appearance due to the appearance of pits. On the other hand, it can be ensured that the isolated metal part and the unisolated metal part are kept insulated.
  • the first radiator 421 may also be implemented in the following manner. Specifically, the first short frame 123, the second short frame 124, or the second long frame 122 of the frame 12 are isolated from a section of metal in the same manner as the foregoing implementation manner to form the first radiator 421 of the radiator 42.
  • FIG. 38 is still another of the electronic device 100 provided by the embodiment of the present application.
  • FIG. 39 is a schematic diagram of the structure of the radiator 42 shown in FIG. 38.
  • the first radiator 421 and the second radiator 422 are arranged in the same layer, and the first radiator 421 is connected to the second radiator 422.
  • the bracket 50 when the bracket 50 has a frame structure, the bracket 50 is arranged on the circuit board 30, and the bracket 50 and the circuit board 30 enclose a space S.
  • the first radiator 421 and the second radiator 422 are formed on the first surface 55 of the bracket 50.
  • the first radiator 421 and the second radiator 422 may also be formed on the surface of the bracket 50 facing the space S.
  • the first radiator 421 and the second radiator 422 may also be formed on the surface of the back cover 11 facing the accommodating space 13, or the first radiator 421 and the second radiator 422 may also be formed on the back cover 11 at the same time.
  • the first radiator 421 includes a first feeding branch 4211.
  • the first feeding branch 4211 has a strip shape.
  • the distance between the center of the first end surface 1 and the grounding point A is a fifth value d5.
  • the distance between the center of the second end surface 2 and the grounding point A is a sixth value d6.
  • the ratio of the fifth value d5 to the sixth value d6 is in the range of 0.3 to 3.
  • the first feeding stub 4211 has a quasi-symmetrical or symmetrical structure.
  • the second radiator 422 includes a first branch 4221, a first bifurcated branch 4223 and a second bifurcated branch 4224.
  • the head end 42231 of the first branch 4223 and the head 42241 of the second branch 4224 are connected to the first branch 4221.
  • the end 42232 of the first branch 4223 and the end 42242 of the second branch 4224 are located on both sides of the first branch 4221.
  • the second radiator 422 has a "Y" shape, or roughly a "T" shape.
  • the two sides of the first branch 4221 can be understood as the two sides of the first branch 4221 itself, and can also be understood as the two sides in the extending direction of the first branch 4221.
  • FIG. 40 is a diagram showing the relationship between the reflection coefficient and the frequency of the radiator 42 shown in FIG. 39 in the frequency range of 0 to 6 GHz.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first radiator 421 and the second radiator 422.
  • the first radiator 421 and the second radiator 422 can generate two resonance frequencies between 0 and 6 GHz.
  • FIG. 40 shows that the two resonance frequencies generated by the first radiator 421 and the second radiator 422 are f1 and f2, respectively.
  • Fig. 41 is a schematic diagram of the current flow of the radiator shown in Fig. 39 under a radio frequency signal with a frequency of f1.
  • FIG. 42 is a schematic diagram of the current flow of the radiator shown in FIG. 39 under the radio frequency signal of frequency f2.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first feeding stub 4211 and the second radiator 422.
  • the first feeding stub 4211 can generate a first current flowing from the first end face 1 and the second end face 2 in the direction of the grounding point A at the same time.
  • the radio frequency signal can be coupled and fed to the second radiator 422 via the first feeding stub 4211.
  • the second radiator 422 has a second current flowing in the direction of the end face 3 of the first branch 4223 and the end face 4 of the second branch 4224.
  • the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is a convection mode.
  • the frequency f1 is the resonance frequency of the convection mode, that is, the first resonance frequency f1 shown in FIG. 40.
  • the resonant frequency f1 is mainly the resonant frequency generated by the first feeding branch 4211.
  • the radio frequency transceiver circuit 41 transmits a radio frequency signal with a frequency range of 0 to 6 GHz
  • the radio frequency signal is transmitted to the first feeding stub 4211 and the second radiator 422.
  • the first feeding stub 4211 can generate a first current flowing from the first end face 1 and the second end face 2 in the direction of the grounding point A at the same time.
  • the second radiator 422 is connected to the first feeding branch 4211, when the radio frequency signal is coupled and fed to the second radiator 422 via the first feeding branch 4211, the second radiator 422 has a branch toward the first The second current flows in the direction of the end end surface 3 of the stub 4223 and the end end surface 4 of the second bifurcated stub 4224.
  • the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is a convection mode.
  • the frequency f2 is the resonant frequency of the convection mode, that is, the second resonant frequency f2 shown in FIG. 40.
  • the resonance frequency f2 is mainly the resonance frequency generated by the second radiator 422.
  • the first radiator 421 and the second radiator 422 when the first radiator 421 and the second radiator 422 receive radio frequency signals in the frequency range of 0 to 6 GHz, the first radiator 421 and the second radiator 422 can generate two convection modes in the frequency band.
  • the working frequency band of the antenna 40 is set near the resonant frequency of the convection mode, so that when the first radiator 421 and the second radiator 422 radiate signals, the signal has less influence on the user.
  • the first radiator 421 and the second radiator 422 can generate more than one convection mode in the range of 0 to 6 GHz, in the frequency range of 0 to 6 GHz, the resonant mode with a low absorption ratio covers a wider frequency band. In other words, there are more convection modes, and the working frequency band set near the resonance frequency is also wider.
  • the two resonance frequencies shown in FIG. 40 are both the resonance frequencies of the convection mode.
  • the first radiator 421 and the second radiator 422 of this implementation can generate two convection modes.
  • the two resonance frequencies f1 and f2 generated by the first radiator 421 and the second radiator 422 can be any value.
  • f1 can be 4GHz.
  • f2 can be 4.6GHz.
  • the size of the two resonance frequencies f1 and f2 is related to the length of the first feeding stub 4211, the length of the second radiator 422, the position of the feeding point B, or the first radiator 421 and the second radiator 422 The external environment (for example, the fixed positions of the first radiator 421 and the second radiator 422) and other factors are related.
  • the first resonance frequency f1 can be changed from 4 GHz to 4.1 GHz.
  • FIG. 43 is another implementation of the radiator 42 provided by the embodiment of the present application. Schematic diagram of the structure.
  • the first radiator 421 has a feeding point B and does not have a grounding point A.
  • the definitions of the fifth value d5 and the sixth value d6 in this implementation are different from the fifth value d5 and the sixth value d6 in the fifth embodiment.
  • the distance between the center of the first end surface 1 and the feeding point B is a fifth value d5.
  • the distance between the center of the second end surface 2 and the feeding point B is a sixth value d6.
  • the ratio of the fifth value d5 to the sixth value d6 is in the range of 0.3 to 3.
  • the first feeding stub 4211 has a quasi-symmetrical or symmetrical structure.
  • the ratio of the fifth value d5 to the sixth value d6 in this implementation is 1.
  • the ratio of the fifth value d5 to the sixth value d6 may also be 0.3, 0.8, 1.2, 2.3, or 2.9.
  • the distance between the end face 3 of the first branch 4223 and the center of the feeding point B is the first value d1.
  • the distance between the end face 4 of the second branch 4224 and the center of the feeding point B is a second value d2.
  • the ratio of the first value d1 to the second value d2 is in the range of 0.3 to 3.
  • the second radiator 422 has a quasi-symmetrical or symmetrical structure.
  • the first feeding stub 4211 and the second radiator 422 will generate two signals in the frequency band.
  • Two resonant modes that is, the first feeding branch 4211 and the second radiator 422 can generate two resonant frequencies in this frequency band, and the two resonant frequencies are f1 and f2, respectively.
  • the first feeding branch 4211 has a first current flowing from the first end face 1 to the feeding point B, and a second current flowing from the second end face 2 in the direction of the feeding point B .
  • the current distribution on the second radiator 422 is the same as the current distribution on the second radiator 422 of the fifth embodiment. Therefore, it can be confirmed by the current distribution on the first feeding branch 4211 and the second radiator 422 that at the frequency f1, the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is a convection mode.
  • the frequency f1 is the resonance frequency of the convection mode.
  • the first feeding branch 4211 has a first current flowing from the first end face 1 to the feeding point B, and a second current flowing from the second end face 2 in the direction of the feeding point B.
  • the current distribution on the second radiator 422 is the same as the current distribution on the second radiator 422 of the fifth embodiment. Therefore, it can be confirmed by the current distribution on the first feeding branch 4211 and the second radiator 422 that at the frequency f2, the resonance mode generated by the first feeding branch 4211 and the second radiator 422 is the convection mode.
  • the frequency f2 is the resonance frequency of the convection mode.
  • the first feeding stub 4211 and the second radiator 422 when the first feeding stub 4211 and the second radiator 422 receive radio frequency signals, the first feeding stub 4211 and the second radiator 422 can generate a convection mode resonance frequency in this frequency band.
  • the operating frequency band of the antenna is set near the resonant frequency of the convection mode, so that when the first feeding branch 4211 and the second radiator 422 radiate signals, the signal has less impact on the user.
  • the technical solution of the present application uses the structure of the first radiator 421 and the second radiator 422 to utilize the first radiator 42 and the second radiator 422.
  • the radiator 422 generates a convective mode with a low absorption ratio, and when the first radiator 421 and the second radiator 422 radiate signals, the signal has less influence on the user.

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Abstract

本申请提供一种电子设备，涉及天线技术领域。电子设备的第一辐射体与第二辐射体相耦合。第二枝节的一端连接于第一枝节的首端与末端之间，第一枝节的首端与末端分别位于第二枝节的两侧。第二枝节的另一端连接于第三枝节的首端与末端之间。第三枝节的首端与第三枝节的末端位于第二枝节的两侧。第一枝节的基准面在第一辐射体的投影为第一投影。第一投影与第一辐射体部分重合或者全部重合，或者第一投影与第一辐射体之间的距离在0至3毫米的范围内。第三枝节的首端端面与基准面的中心距离为第一值。第三枝节的末端端面与基准面的中心距离为第二值。第一值与第二值的比值在0.5至2的范围内。电子设备可以产生对流模式。

Description

电子设备
本申请要求于2019年11月30日提交中国专利局、申请号为201911209354.6、申请名称为“电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及天线技术领域，特别涉及一种电子设备。
背景技术
随着手机的功能越来越丰富,传统手机需要涵盖的通讯范围也越来越广。此时，为了能够满足传统手机涵盖通讯范围的要求，发展天线技术越来越得到许多研究人员的关注。然而，传统的电子设备的天线所产生的谐振模式为差模模式。差模模式的比吸收率SAR(Specific Absorption Ratio)可能比较高。
发明内容
本申请技术方案提供的电子设备可以产生一个或多个对流模式的谐振模式。
第一方面，本申请技术方案提供了一种电子设备。电子设备包括第一辐射体及第二辐射体。所述第一辐射体与所述第二辐射体相耦合。换言之，射频信号能够经第一辐射体耦合馈电第二辐射体。射频信号也能够经第二辐射体耦合馈电第一辐射体。
所述第二辐射体包括第一枝节、第二枝节及第三枝节。所述第二枝节的一端连接于所述第一枝节的首端与末端之间，所述第一枝节的首端与末端分别位于所述第二枝节的两侧。所述第二枝节的另一端连接于所述第三枝节的首端与末端之间。所述第三枝节的首端与所述第三枝节的末端位于所述第二枝节的两侧。可以理解的是，第二枝节的两侧可以理解为第二枝节本身的两侧，也可以理解为在第二枝节的延伸方向上的两侧。
所述第一枝节具有背离所述第二枝节的基准面。所述基准面在所述第一辐射体的投影为第一投影。所述第一投影与所述第一辐射体部分重合或者全部重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内。此时，所述第一辐射体与所述第二辐射体可以实现强耦合。换言之，当所述第一辐射体上的电流产生磁场时，所述第二辐射体可以位于第一辐射体较强的磁场区域内。
所述第三枝节的首端端面与所述基准面的中心距离为第一值。所述第三枝节的末端端面与所述基准面的中心距离为第二值。所述第一值与所述第二值的比值在0.5至2的范围内。换言之，所述第二辐射体为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第三枝节包括第一分叉枝节及第二分叉枝节。所述第一分叉枝节背离所述第二分叉枝节的端部为所述第三枝节的首端。所述第二分叉枝节背离所述第一 分叉枝节的端部为所述第三枝节的末端。
所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。换言之，当0°＜a＜180°时，所述第三枝节大致呈“V”字型，或者呈“V”字型。当a＝180°时，所述第三枝节呈条型。
在本实现方式中，通过将所述第三枝节大致呈“V”字型，或者呈“V”字型，或者呈条型，从而使得第二辐射体的对称性较佳。此外，第三枝节的结构简单，容易加工。
一种实现方式中，所述第二辐射体还包括第四枝节、第三分叉枝节及第四分叉枝节。所述第四枝节、所述第三分叉枝节及所述第四分叉枝节均位于所述第一枝节背离所述第二枝节的一侧。所述第四枝节的一端连接于所述第三分叉枝节的首端与所述第四分叉枝节的首端，另一端连接于所述基准面。所述第三分叉枝节的末端与所述第四分叉枝节的末端位于所述第四枝节的两侧。可以理解的是，所述第四枝节的两侧可以理解为所述第四枝节本身的两侧，也可以理解为在所述第四枝节的延伸方向上的两侧。
所述第三分叉枝节的末端端面与所述基准面的中心距离为第三值。所述第四分叉枝节的末端端面与所述基准面的中心距离为第四值。所述第三值与所述第四值的比值在0.5至2的范围内。
可以理解的是，通过在所述第一枝节背离所述第二枝节的一侧连接所述第四枝节、所述第三分叉枝节及所述第四分叉枝节，从而利用所述第三分叉枝节及所述第四分叉枝节产生一个对流模式，也即所述第一辐射体与所述第二辐射体产生的对流模式的数量进一步的增加。此时，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。
一种实现方式中，所述第三分叉枝节朝远离所述基准面的方向延伸。或者所述第三分叉枝节的延伸方向平行于所述基准面的延伸方向。所述第四分叉枝节朝远离所述第一枝节的方向延伸。或者所述第二分叉枝节的延伸方向平行于所述第一枝节的延伸方向。
一种实现方式中，所述第三分叉枝节与所述第四分叉枝节均呈条型状。所述第三分叉枝节与所述第四分叉枝节的夹角大于0°，且小于等于180°。
一种实现方式中，所述第二辐射体还包括第四枝节、第三分叉枝节及第四分叉枝节。所述第四枝节、所述第三分叉枝节及所述第四分叉枝节均位于所述第一分叉枝节及所述第二分叉枝节背离所述第二枝节的一侧。所述第四枝节的一端连接于所述第一分叉枝节的首端与所述第二分叉枝节的首端，另一端连接于所述第三分叉枝节的首端与所述第四分叉枝节的首端。所述第三分叉枝节的末端与所述第四分叉枝节的末端位于所述第四枝节的两侧。所述第四枝节的两侧可以理解为所述第四枝节本身的两侧，也可以理解为在所述第四枝节的延伸方向上的两侧。
所述第三分叉枝节的末端端面与所述基准面的中心距离为第三值。所述第四分叉枝节的末端端面与所述基准面的中心距离为第四值。所述第三值与所述第四值的比值在0.5至2的范围内。
通过在所述第一分叉枝节及所述第二分叉枝节背离所述第二枝节的一侧连接所述第四枝节、所述第三分叉枝节及所述第四分叉枝节，从而利用所述第三分叉枝节及所述第四分叉枝节上的电流产生一个对流模式，也即所述第一辐射体与所述第二辐射体产生的对流模式的数量进一步的增加。此时，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工 作频段的范围更广。
一种实现方式中，所述第三分叉枝节朝远离所述基准面的方向延伸。或者所述第三分叉枝节的延伸方向平行于所述基准面的延伸方向。所述第四分叉枝节朝远离所述第一枝节的方向延伸。或者所述第二分叉枝节的延伸方向平行于所述第一枝节的延伸方向。
一种实现方式中，所述第三分叉枝节与所述第四分叉枝节均呈条型状。所述第三分叉枝节与所述第四分叉枝节的夹角大于0°，且小于等于180°。
一种实现方式中，所述第一辐射体包括第一馈电枝节。所述第一馈电枝节具有接地点。所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述接地点距离为第五值。所述第二端面的中心与所述接地点的距离为第六值。所述第五值与所述第六值的比值在0.3至3的范围内。此时，所述第一馈电枝节为准对称或者对称结构。
可以理解的是，通过设置所述第一馈电枝节为准对称或者对称结构，从而使得所述第一辐射体接收射频信号之后，所述第一辐射体能够产生一个对流模式，也即第一辐射体具有一个对流模式的谐振频率。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一辐射体还包括连接枝节及第二馈电枝节。所述第二馈电枝节包括第一末端及远离所述第一末端设置的第二末端。所述连接枝节的一端连接在所述第一馈电枝节的第一端面与所述第二端面之间，另一端连接在所述第一末端与所述第二末端之间。所述第一末端与所述第二末端位于所述连接枝节的两侧。所述连接枝节的两侧可以理解为所述连接枝节本身的两侧，也可以理解为在所述连接枝节的延伸方向上的两侧。
所述第一末端的端面的中心与所述接地点的距离为第七值。所述第二末端的端面的中心与所述接地点的距离为第八值。所述第七值与所述第八值的比值在0.3至3的范围内。换言之，当所述第一辐射体具有连接枝节及所述第二馈电枝节时，所述第一辐射体依然为准对称或者对称结构。
在本实现方式中，通过在所述第一馈电枝节的一侧设置所述连接枝节及所述第二馈电枝节，从而利用所述连接枝节及所述第二馈电枝节产生一个对流模式，也即所述第一辐射体与所述第二辐射体产生的对流模式的数量进一步增加。此时，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。
一种实现方式中，所述第一辐射体包括第一馈电枝节。所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述第一馈电枝节的馈电点的距离为第五值。所述第二端面的中心与所述馈电点的距离为第六值。所述第五值与所述第六值的比值在0.3至3的范围内。换言之，所述第一辐射体为准对称或者对称结构。
可以理解的是，通过设置所述第一馈电枝节为准对称或者对称结构，从而使得所述第一辐射体接收射频信号之后，所述第一辐射体能够产生一个对流模式，也即第一辐射体具有一个对流模式的谐振频率。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一辐射体为倒F天线、复合左右手天线或者环形天线。
可以理解的是，当具有准对称结构或者对称结构的所述第二辐射体与倒F天线、复合 左右手天线或者环形天线与相配合时，所述第二辐射体也能够产生一个对流模式。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述电子设备还包括第三辐射体。所述第三辐射体与所述第一辐射体相耦合。
所述第三辐射体包括第五分叉枝节及第六分叉枝节。所述第五分叉枝节的首端连接于所述第六分叉枝节的首端。所述第五分叉枝节朝着远离所述基准面的方向延伸，所述第六分叉枝节朝着远离所述基准面延伸
所述第三辐射体在所述第一辐射体的投影为第二投影。所述第二投影部分或者全部位于所述第一辐射体内，或者所述第二投影与所述第一辐射体之间的最短距离在0至3毫米的范围内。
所述第五分叉枝节的首端端面与末端端面的中心距离为第九值。所述第六分叉枝节的首端端面与末端端面的中心距离为第十值。所述第九值与所述第十值的比值在0.5至2的范围内。换言之，所述第三辐射体为准对称或者对称结构。
在本实现方式中，通过在所述第二辐射体背离所述第一辐射体的一侧设置所述第三辐射体，从而利用所述第三辐射体上的电流产生一个对流模式，也即所述第一辐射体、所述第二辐射体与所述第三辐射体产生的对流模式的数量进一步的增加。此时，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体固定于所述第一表面。所述第二辐射体固定于所述第二表面。
可以理解的是，通过将所述第一辐射体固定于所述第一表面，所述第二辐射体固定于所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体固定在所述支架朝向所述收容空间的表面。所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者所述第二辐射体固定于所述壳体背离所述收容空间的表面。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体均位于收容空间内，进而利用所述壳体与所述屏幕保护所述第一辐射体与所述第二辐射体。此外，通过所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而有效地利用所述壳体的空间。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体背离所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体之间的距离增大，也即天线具有较大的净空间。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板固定位于所述收容空间，所述支架固定于所述电路板，并与所述电路板围设有一空间，所述第一辐射体固定于所述支架朝向所述空间的表面；
所述第二辐射体固定于所述支架背离所述空间的表面。或者
所述第二辐射体固定于所述壳体朝向所述收容空间的表面。或者
所述第二辐射体固定于所述壳体背离所述收容空间的表面。
在本实现方式中，通过将所述第一辐射体固定于所述支架朝向所述空间的表面，从而一方面利用所述支架有效地保护所述第一辐射体，另一方面可以增大所述第一辐射体与所述第二辐射体之间的距离，以使天线具有较大的净空间。
第二方面，本申请技术方案提供一种电子设备。电子设备包括第一辐射体及第二辐射体。所述第一辐射体与所述第二辐射体相耦合。换言之，射频信号能够经所述第一辐射体耦合馈电所述第二辐射体，也能够经所述第二辐射体耦合馈电所述第一辐射体。
所述第二辐射体包括第一枝节、第一分叉枝节及第二分叉枝节。所述第一枝节的一端连接于所述第一分叉枝节首端与所述第二分叉枝节的首端。所述第一分叉枝节的末端与所述第二分叉枝节的末端位于所述第一枝节的两侧。可以理解的是，所述第一枝节的两侧可以理解为所述第一枝节本身的两侧，也可以理解为在所述第一枝节的延伸方向上的两侧。
所述第一枝节具有背离所述第一分叉枝节及所述第二分叉枝节的基准面。所述基准面在所述第一辐射体的投影为第一投影。所述第一投影与所述第一辐射体部分或者全部重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内。换言之，所述第一辐射体与所述第二辐射体能够实现强耦合。
所述第一分叉枝节的末端端面与所述基准面的中心距离为第一值。所述第二分叉枝节的末端端面与所述基准面的中心距离为第二值。所述第一值与所述第二值的比值在0.5至2的范围内。换言之，所述第二辐射体为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式，所述第一分叉枝节与所述第二分叉枝节均呈条型状。所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。换言之，当0°＜a＜180°时，所述第一分叉枝节与所述第二分叉枝节大致呈“V”字型，或者呈“V”字型。当a＝180°时，所述第一分叉枝节与所述第二分叉枝节呈条型。
在本实现方式中，通过将所述第二辐射体大致呈“V”字型，或者呈“V”字型，或者呈条型，从而使得第二辐射体的对称性更佳。此外，所述第二辐射体的结构简单，容易加工。
一种实现方式中，所述第一辐射体包括第一馈电枝节。所述第一馈电枝节具有接地点。所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述接地点距离为第五值。所述第二端面的中心与所述接地点的距离为第六值。所述 第五值与所述第六值的比值在0.3至3的范围内。换言之，所述第一馈电枝节为准对称或者对称结构。
可以理解的是，通过设置所述第一馈电枝节为准对称或者对称结构，从而使得所述第一辐射体接收射频信号之后，所述第一辐射体能够产生一个对流模式，也即第一辐射体具有一个对流模式的谐振频率。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一辐射体还包括连接枝节及第二馈电枝节。所述第二馈电枝节包括第一末端及远离所述第一末端设置的第二末端。所述连接枝节的一端连接在所述第一馈电枝节的第一端面与所述第二端面之间，另一端连接在所述第一末端与所述第二末端之间。所述第一末端与所述第二末端位于所述连接枝节的两侧。可以理解的是，所述连接枝节的两侧可以理解为所述连接枝节本身的两侧，也可以理解为在所述连接枝节的延伸方向上的两侧。
所述第一末端的端面的中心与所述接地点的距离为第七值。所述第二末端的端面的中心与所述接地点的距离为第八值。所述第七值与所述第八值的比值在0.3至3的范围内。换言之，当所述第一辐射体具有连接枝节及所述第二馈电枝节时，所述第一辐射体依然为准对称或者对称结构。
在本实现方式中，通过在所述第一馈电枝节的一侧设置所述连接枝节及所述第二馈电枝节，从而利用所述连接枝节及所述第二馈电枝节产生一个对流模式，也即所述第一辐射体与所述第二辐射体产生的对流模式的数量进一步增加。此时，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。
一种实现方式中，所述第一辐射体包括第一馈电枝节。所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述第一馈电枝节的馈电点的距离为第五值。所述第二端面的中心与所述馈电点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。换言之，所述第一辐射体为准对称或者对称结构。
可以理解的是，通过设置所述第一馈电枝节为准对称或者对称结构，从而使得所述第一辐射体接收射频信号之后，所述第一辐射体能够产生一个对流模式，也即第一辐射体具有一个对流模式的谐振频率。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一辐射体为倒F天线、复合左右手天线或者环形天线。
可以理解的是，当具有准对称结构或者对称结构的所述第二辐射体与倒F天线、复合左右手天线或者环形天线与相配合时，所述第二辐射体也能够产生一个对流模式。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体固定于所述第一表面。所述第二辐射体固定于所述第二表面。
可以理解的是，通过将所述第一辐射体固定于所述第一表面，所述第二辐射体固定于 所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体固定在所述支架朝向所述收容空间的表面。所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者所述第二辐射体固定于所述壳体背离所述收容空间的表面。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体均位于收容空间内，进而利用所述壳体与所述屏幕保护所述第一辐射体与所述第二辐射体。此外，通过所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而有效地利用所述壳体的空间。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体背离所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体之间的距离增大，也即天线具有较大的净空间。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板固定位于所述收容空间，所述支架固定于所述电路板，并与所述电路板围设有一空间，所述第一辐射体固定于所述支架朝向所述空间的表面。
所述第二辐射体固定于所述支架背离所述空间的表面。或者
所述第二辐射体固定于所述壳体朝向所述收容空间的表面。或者
所述第二辐射体固定于所述壳体背离所述收容空间的表面。
在本实现方式中，通过将所述第一辐射体固定于所述支架朝向所述空间的表面，从而一方面利用所述支架有效地保护所述第一辐射体，另一方面可以增大所述第一辐射体与所述第二辐射体之间的距离，以使天线具有较大的净空间。
第三方面，本申请技术方案提供一种电子设备。电子设备包括第一辐射体及第二辐射体。所述第一辐射体与所述第二辐射体相耦合。换言之，射频信号能够经所述第一辐射体耦合馈电所述第二辐射体，也能够经所述第二辐射体耦合馈电所述第一辐射体。
所述第二辐射体包括第一分叉枝节及第二分叉枝节。所述第一分叉枝节的首端及所述第二分叉枝节的首端彼此连接。所述第一分叉枝节朝远离所述第二分叉枝节的首端的方向延伸。所述第二分叉枝节朝远离所述第一分叉枝节的首端的方向延伸。
所述第二辐射体在所述第一辐射体的投影为第一投影。所述第一投影与所述第一辐射体部分或者全部重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内。换言之，所述第一辐射体与所述第二辐射体能够实现强耦合。
所述第一分叉枝节的首端端面与末端端面的中心距离为第一值。所述第二分叉枝节的首端端面与末端端面的中心距离为第二值。所述第一值与所述第二值的比值在0.2至2的范围内。换言之，所述第二辐射体为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐 射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a＜180°。换言之，当0°＜a＜180°时，所述第一分叉枝节与所述第二分叉枝节大致呈“V”字型，或者呈“V”字型。
在本实现方式中，通过将所述第三枝节大致呈“V”字型，或者呈“V”字型，从而使得第二辐射体的对称性更佳。此外，第二辐射体的结构简单，容易加工。
一种实现方式中，所述第一辐射体包括第一馈电枝节。所述第一馈电枝节具有接地点。所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述接地点距离为第五值。所述第二端面的中心与所述接地点的距离为第六值。所述第五值与所述第六值的比值在0.3至3的范围内。此时，所述第一馈电枝节为准对称或者对称结构。
可以理解的是，通过设置所述第一馈电枝节为准对称或者对称结构，从而使得所述第一辐射体接收射频信号之后，所述第一辐射体能够产生一个对流模式，也即第一辐射体具有一个对流模式的谐振频率。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一辐射体还包括连接枝节及第二馈电枝节。所述第二馈电枝节包括第一末端及远离所述第一末端设置的第二末端。所述连接枝节的一端连接在所述第一馈电枝节的第一端面与所述第二端面之间，另一端连接在所述第一末端与所述第二末端之间，所述第一末端与所述第二末端位于所述连接枝节的两侧。可以理解的是，所述连接枝节的两侧可以理解为所述连接枝节本身的两侧，也可以理解为在所述连接枝节的延伸方向上的两侧。
所述第一末端的端面的中心与所述接地点的距离为第七值，所述第二末端的端面的中心与所述接地点的距离为第八值，所述第七值与所述第八值的比值在0.3至3的范围内。换言之，当所述第一辐射体具有连接枝节及所述第二馈电枝节时，所述第一辐射体依然为准对称或者对称结构。
在本实现方式中，通过在所述第一馈电枝节的一侧设置所述连接枝节及所述第二馈电枝节，从而利用所述连接枝节及所述第二馈电枝节产生一个对流模式，也即所述第一辐射体与所述第二辐射体产生的对流模式的数量进一步增加。此时，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。
一种实现方式中，所述第一辐射体包括第一馈电枝节。所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述第一馈电枝节的馈电点的距离为第五值，所述第二端面的中心与所述馈电点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。换言之，所述第一辐射体为准对称或者对称结构。
可以理解的是，通过设置所述第一馈电枝节为准对称或者对称结构，从而使得所述第一辐射体接收射频信号之后，所述第一辐射体能够产生一个对流模式，也即第一辐射体具有一个对流模式的谐振频率。此时，天线的工作频段设置在对流模式的谐振频率的附近， 这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一辐射体为倒F天线、复合左右手天线或者环形天线。
可以理解的是，当具有准对称结构或者对称结构的所述第二辐射体与倒F天线、复合左右手天线或者环形天线与相配合时，所述第二辐射体也能够产生一个对流模式。此时，天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体固定于所述第一表面。所述第二辐射体固定连接于所述第二表面。
可以理解的是，通过将所述第一辐射体固定于所述第一表面，所述第二辐射体固定连接于所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体固定在所述支架朝向所述收容空间的表面。所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者所述第二辐射体固定于所述壳体背离所述收容空间的表面。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体均位于收容空间内，进而利用所述壳体与所述屏幕保护所述第一辐射体与所述第二辐射体。此外，通过所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而有效地利用所述壳体的空间。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体背离所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体之间的距离增大，也即天线具有较大的净空间。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板固定位于所述收容空间，所述支架固定于所述电路板，并与所述电路板围设有一空间，所述第一辐射体固定于所述支架朝向所述空间的表面。
所述第二辐射体固定于所述支架背离所述空间的表面。或者
所述第二辐射体固定于所述壳体朝向所述收容空间的表面。或者
所述第二辐射体固定于所述壳体背离所述收容空间的表面。
在本实现方式中，通过将所述第一辐射体固定于所述支架朝向所述空间的表面，从而一方面利用所述支架有效地保护所述第一辐射体，另一方面可以增大所述第一辐射体与所述第二辐射体之间的距离，以使天线具有较大的净空间。
第四方面，本申请技术方案提供一种电子设备。所述电子设备包括第一辐射体及第二辐射体。所述第一辐射体与所述第二辐射体相耦合。换言之，射频信号能够经第一辐射体 耦合馈电第二辐射体。射频信号也能够经第二辐射体耦合馈电第一辐射体。
所述第一辐射体包括第一端面及远离所述第一端面设置的第二端面。所述第二辐射体包括第三端面及远离所述第三端面设置的第四端面。所述第一端面位于所述第三端面与所述第四端面之间。所述第二端面位于所述第一端面与所述第四端面之间。
所述第二辐射体在所述第一辐射体的投影为第一投影。所述第一投影与所述第一辐射体部分或者全部重合，或者所述第一投影与所述第一辐射体之间的距离在0至3毫米的范围内。此时，所述第一辐射体与所述第二辐射体可以实现强耦合。
所述第一端面与所述第三端面的中心距离为第一值。所述第二端面与所述第四端面的中心距离为第二值。所述第一值与所述第二值的比值在0.5至2的范围内。换言之，所述第二辐射体为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第二辐射体为条型状。
在本实现方式中，通过将第二辐射体为条型状，从而简化所述第二辐射体的结构，方便加工制作。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体固定于所述第一表面。所述第二辐射体固定连接于所述第二表面。
可以理解的是，通过将所述第一辐射体固定于所述第一表面，所述第二辐射体固定连接于所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体固定在所述支架朝向所述收容空间的表面。所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者所述第二辐射体固定于所述壳体背离所述收容空间的表面。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体均位于收容空间内，进而利用所述壳体与所述屏幕保护所述第一辐射体与所述第二辐射体。此外，通过所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而有效地利用所述壳体的空间。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体背离所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体之间的距离增大，也即天线具有较大的净空间。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于 所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板固定位于所述收容空间，所述支架固定于所述电路板，并与所述电路板围设有一空间，所述第一辐射体固定于所述支架朝向所述空间的表面；
所述第二辐射体固定于所述支架背离所述空间的表面。或者
所述第二辐射体固定于所述壳体朝向所述收容空间的表面。或者
所述第二辐射体固定于所述壳体背离所述收容空间的表面。
在本实现方式中，通过将所述第一辐射体固定于所述支架朝向所述空间的表面，从而一方面利用所述支架有效地保护所述第一辐射体，另一方面可以增大所述第一辐射体与所述第二辐射体之间的距离，以使天线具有较大的净空间。
第五方面，本申请技术方案提供一种电子设备。电子设备包括第一辐射体及第二辐射体，所述第一辐射体与所述第二辐射体相耦合。换言之，射频信号能够经所述第一辐射体耦合馈电所述第二辐射体，也能够经所述第二辐射体耦合馈电所述第一辐射体。
所述第一辐射体包括第一端面及远离第一端面设置的第二端面。所述第二辐射体包括第三端面及远离所述第三端面设置的第四端面。所述第三端面位于所述第一端面与所述第二端面之间。所述第四端面位于所述第一端面背离所述第三端面的一侧。
所述第二辐射体在所述第一辐射体的投影为第一投影。所述第一投影与所述第一辐射体部分重合。或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内。此时，所述第一辐射体与所述第二辐射体可以实现强耦合。
所述第一端面与所述第二端面的中心距离为第一值，所述第三端面与所述第四端面的中心距离为第二值，所述第一值与所述第二值的比值在0.5至2的范围内。换言之，所述第二辐射体为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一端面与所述第三端面的中心距离为第三值。所述第三值与所述第二值的比值在0至0.35的范围内。
一种实现方式中，所述第一辐射体与所述第二辐射体均为条型状。
在本实现方式中，通过将所述第一辐射体与所述第二辐射体设置为条型状，从而简化所述第一辐射体与所述第二辐射体的结构，方便加工制作。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体固定于所述第一表面。所述第二辐射体固定连接于所述第二表面。
可以理解的是，通过将所述第一辐射体固定于所述第一表面，所述第二辐射体固定连接于所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于 所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体固定在所述支架朝向所述收容空间的表面。所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者所述第二辐射体固定于所述壳体背离所述收容空间的表面。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体均位于收容空间内，进而利用所述壳体与所述屏幕保护所述第一辐射体与所述第二辐射体。此外，通过所述第二辐射体固定于所述壳体朝向所述收容空间的表面，从而有效地利用所述壳体的空间。
通过将所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体背离所述收容空间的表面，从而使得所述第一辐射体与所述第二辐射体之间的距离增大，也即天线具有较大的净空间。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板固定位于所述收容空间，所述支架固定于所述电路板，并与所述电路板围设有一空间，所述第一辐射体固定于所述支架朝向所述空间的表面；
所述第二辐射体固定于所述支架背离所述空间的表面。或者
所述第二辐射体固定于所述壳体朝向所述收容空间的表面。或者
所述第二辐射体固定于所述壳体背离所述收容空间的表面。
在本实现方式中，通过将所述第一辐射体固定于所述支架朝向所述空间的表面，从而一方面利用所述支架有效地保护所述第一辐射体，另一方面可以增大所述第一辐射体与所述第二辐射体之间的距离，以使天线具有较大的净空间。
第六方面，本申请技术方案提供一种电子设备。电子设备包括第一辐射体、第二辐射体及射频收发电路。所述第二辐射体连接于所述第一辐射体。所述射频收发电路电连接于所述第一辐射体。射频收发电路用于发射或者接收射频信号。此时，所述射频收发电路发射的射频信号可以直接传输至所述第一辐射体与所述第二辐射体。或者所述第一辐射体与所述第二辐射体能够将射频信号传输至所述射频收发电路。
所述第一辐射体具有连接所述射频收发电路的馈电点。所述第一辐射体包括第一端面及远离所述第一端面设置的第二端面。所述第一端面的中心与所述馈电点的距离为第五值。所述第二端面的中心与所述馈电点的距离为第六值。所述第五值与所述第六值的比值在0.3至3的范围内。换言之，所述第一辐射体为准对称或者对称结构。
所述第二辐射体包括第一枝节、第一分叉枝节及第二分叉枝节。所述第一枝节的一端连接于所述第一分叉枝节首端与所述第二分叉枝节的首端，另一端连接于所述第一辐射体。所述第一分叉枝节的末端与所述第二分叉枝节的末端位于所述第一枝节的两侧。可以理解的是，所述第一枝节的两侧可以理解为所述第一枝节本身的两侧，也可以理解为在所述第一枝节的延伸方向上的两侧。
所述第一分叉枝节的末端端面与所述馈电点的中心距离为第一值。所述第二分叉枝节的末端端面与所述馈电点的中心距离为第二值。所述第一值与所述第二值的比值在0.3至3 的范围内。换言之，所述第二辐射体也为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。换言之，当0°＜a＜180°时，所述第一分叉枝节与所述第二分叉枝节大致呈“V”字型，或者呈“V”字型。当a＝180°时，所述第一分叉枝节与所述第二分叉枝节呈条型。
在本实现方式中，通过将所述第二辐射体大致呈“V”字型，或者呈“V”字型，或者呈条型，从而第二辐射体的对称性更佳。此外，所述第二辐射体的结构简单，容易加工。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体与所述第二辐射体固定于所述第一表面。或者所述第一辐射体与所述第二辐射体固定连接于所述第二表面。
可以理解的是，通过将所述第一辐射体与所述第二辐射体固定于所述第一表面，从而既可以有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布，又可以利用所述壳体保护所述第一辐射体及所述第二辐射体。
可以理解的是，通过将所述第一辐射体与所述第二辐射体固定连接于所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体及所述第二辐射体固定在所述支架朝向所述收容空间的表面。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间。所述电路板固定位于所述收容空间。所述支架固定于所述电路板，并与所述电路板围设有一空间。所述第一辐射体及所述第二辐射体固定于所述支架朝向所述空间的表面。
在本实现方式中，通过将所述第一辐射体及所述第二辐射体固定于所述支架朝向所述空间的表面，从而利用所述支架有效地保护所述第一辐射体及所述第二辐射体。
第七方面，本申请技术方案提供一种电子设备。电子设备包括第一辐射体、第二辐射体及射频收发电路。所述第二辐射体连接于所述第一辐射体。所述射频收发电路电连接于所述第一辐射体。射频收发电路用于发射或者接收射频信号。此时，所述射频收发电路发射的射频信号可以直接传输至所述第一辐射体与所述第二辐射体。或者所述第一辐射体与所述第二辐射体能够将射频信号传输至所述射频收发电路。
所述第一辐射体具有接地点。所述第一辐射体包括第一端面及远离所述第一端面设置 的第二端面。所述第一端面的中心与所述接地点的距离为第五值。所述第二端面的中心与所述接地点的距离为第六值。所述第五值与所述第六值的比值在0.3至3的范围内。换言之，所述第一辐射体为准对称或者对称结构。
所述第二辐射体包括第一枝节、第一分叉枝节及第二分叉枝节。所述第一枝节的一端连接于所述第一分叉枝节首端与所述第二分叉枝节的首端，另一端连接于所述第一辐射体。所述第一分叉枝节的末端与所述第二分叉枝节的末端位于所述第一枝节的两侧。可以理解的是，所述第一枝节的两侧可以理解为所述第一枝节本身的两侧，也可以理解为在所述第一枝节的延伸方向上的两侧。
所述第一分叉枝节的末端端面与所述接地点的中心距离为第一值。所述第二分叉枝节的末端端面与所述接地点的中心距离为第二值。所述第一值与所述第二值的比值在0.3至3的范围内。换言之，所述第二辐射体也为准对称或者对称结构。
在本实现方式中，当所述第一辐射体与所述第二辐射体接收射频信号时，所述第一辐射体与所述第二辐射体可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在所述第一辐射体与所述第二辐射体辐射信号时，信号对用户影响较小。
一种实现方式中，所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。换言之，当0°＜a＜180°时，所述第一分叉枝节与所述第二分叉枝节大致呈“V”字型，或者呈“V”字型。当a＝180°时，所述第一分叉枝节与所述第二分叉枝节呈条型。
在本实现方式中，通过将所述第二辐射体大致呈“V”字型，或者呈“V”字型，或者呈条型，从而第二辐射体的对称性更佳。此外，所述第二辐射体的结构简单，容易加工。
一种实现方式中，所述电子设备还包括壳体。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述壳体包括相背设置的第一表面及第二表面。所述第一表面朝向所述收容空间。所述第一辐射体与所述第二辐射体固定于所述第一表面。或者所述第一辐射体与所述第二辐射体固定连接于所述第二表面。
可以理解的是，通过将所述第一辐射体与所述第二辐射体固定于所述第一表面，从而既可以有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布，又可以利用所述壳体保护所述第一辐射体及所述第二辐射体。
可以理解的是，通过将所述第一辐射体与所述第二辐射体固定连接于所述第二表面，从而有效地利用所述后盖的空间，也即避免所述第一辐射体与所述第二辐射体因占用所述收容空间而减小所述收容空间内器件的排布。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体。所述屏幕与所述壳体围设有收容空间。所述电路板位于所述收容空间。所述支架固定于所述电路板。所述第一辐射体及所述第二辐射体固定在所述支架朝向所述收容空间的表面。
一种实现方式中，所述电子设备还包括壳体、屏幕、电路板及支架。所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间。所述电路板固定位于所述收容空间。所 述支架固定于所述电路板，并与所述电路板围设有一空间。所述第一辐射体及所述第二辐射体固定于所述支架朝向所述空间的表面。
在本实现方式中，通过将所述第一辐射体及所述第二辐射体固定于所述支架朝向所述空间的表面，从而利用所述支架有效地保护所述第一辐射体及所述第二辐射体。
附图说明
图1是本申请实施例提供的电子设备的一种实现方式的结构示意图；
图2是图1所示的电子设备的分解示意图；
图3a是图1所示的电子设备在M-M线处的一种实现方式的剖面示意图；
图3b是图1所示的电子设备的后盖与第二辐射体的结构示意图；
图4是图1所示的电子设备的部分结构示意图；
图5a是图4所示的电子设备的辐射体的一种实施方式的结构示意图；
图5b是图5a所示的辐射体的侧视图；
图5c是图5a所示的辐射体的俯视图；
图6是图5a所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图7是图5a所示的辐射体在频率为f1上的电流的流向示意图；
图8是图5a所示的辐射体在频率为f2上的电流的流向示意图；
图9是本申请实施例提供的辐射体的另一种实现方式的结构示意图；
图10是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图11是图10所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图12是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图13是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图14是图13所示的辐射体的俯视示意图；
图15是图14所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图16是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图17是图1所示的电子设备在M-M线处的另一种实现方式的剖面示意图；
图18是图17所示的电子设备的辐射体的结构示意图；
图19是图18所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图20a是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图20b是图1所示的电子设备在M-M线处的再一种实现方式的剖面示意图；
图21是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图22是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图23是图22所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图24是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图25a是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图25b是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图25c是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图26是图25c所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图27a是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图27b是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图28是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图29是图28所示的辐射体在另一种角度下的结构示意图；
图30a是图28所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图30b是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图31是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图32是图31所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图33a是图31所示的辐射体在频率为f1上的电流的流向示意图；
图33b是本申请实施例提供的辐射体的再一种实现方式的结构示意图；
图34是图1所示的电子设备在M-M线处的再一种实现方式的剖面示意图；
图35是图1所示的电子设备在M-M线处的再一种实现方式的剖面示意图；
图36是本申请实施例提供的电子设备的另一种实现方式的结构示意图；
图37是图36所示的电子设备在N-N线的剖面示意图；
图38是本申请实施例提供的电子设备的再一种实现方式的部分结构示意图；
图39是图38所示的辐射体的结构示意图；
图40是图39所示的辐射体在频段为0至6GHz的反射系数与频率的关系图；
图41是图39所示的辐射体在频率为f1上的电流流向示意图；
图42是图39所示的辐射体在频率为f2上的电流流向示意图；
图43是本申请实施例提供的辐射体的再一种实现方式的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参阅图1，图1是本申请实施例提供的电子设备100的一种实现方式的结构示意图。电子设备100可以为平板电脑、手机、照相机、个人计算机、笔记本电脑、车载设备、可穿戴设备、增强现实(augmented reality，AR)眼镜、AR头盔、虚拟现实(virtual reality，VR)眼镜或者VR头盔。图1所示实施例的电子设备100以手机为例进行阐述。其中，为了便于描述，如图1所示，定义电子设备100的宽度方向为X轴。电子设备100的长度方向为Y轴。电子设备100的厚度方向为Z轴。
请参阅图2，图2是图1所示的电子设备100的分解示意图。
电子设备100包括壳体10、屏幕20、电路板30及天线40。
屏幕20安装于壳体10。屏幕20与壳体10共同围设有收容空间13。电路板30位于收容空间13。此外，收容空间13还可以用于收容其他器件。例如扬声器、麦克风、听筒以及摄像模组等。
一种实现方式中，壳体10包括后盖11及边框12。后盖11与屏幕20相对设置。后盖11设于边框12远离屏幕20的一侧，此时，后盖11、边框12与屏幕30共同围设有收容空间13。结合附图1所示，附图1示意了后盖11与边框12围成大致呈长方体的结构。在一种实现方式中，后盖11与边框12一体成型。
一种实现方式中，屏幕20包括保护盖板21和显示屏22。保护盖板21层叠于显示屏 22上，以用于保护显示屏22。保护盖板21的材质可以为透光材料，例如玻璃。此外，显示屏22用于显示图像。显示屏22可以为但不仅限于为液晶显示屏(liquid crystal display,LCD)。例如，显示屏22还可以为有机发光二极管(organic light-emitting diode，OLED)显示屏。
请再次参阅图2，电路板30位于屏幕20与后盖11之间。电路板30上安装有电子设备100的电子元器件。例如，电子元器件可以包括中央处理器(central processing unit，CPU)、电池管理单元和基带处理单元。
此外，天线40可用于接收和发射信号。具体的，天线40包括射频收发电路41及辐射体42。
其中，射频收发电路41位于收容空间13内。射频收发电路41可以固定在电路板30上。射频收发电路41用于发射和接收射频信号。射频收发电路41不仅限于附图2所示意的数量、形状及大小。
在一种实现方式中，射频收发电路41可以包括具有独立模块的射频收发芯片。射频收发芯片用于发射和接收射频信号。可以理解的是，通过设置一独立模块的射频收发芯片可以独立运行发射和接收射频信号的功能，从而提高信号的传输效率，进而提高天线性能。此外，射频收发电路41还可以包括电容、电感或者电阻等器件。电容、电感或者电阻是用于辅助射频信号的传输。例如，对射频信号进行放大处理等。当然，在其他实现方式中，射频收发电路41可以包括处理单元，例如CPU。此时，发射和接收射频信号的功能可以集成在CPU上。可以理解的是，因为CPU具有发射和接收射频信号的功能，所以电子设备100的内部可以节省一个芯片的占用空间，从而提高电子设备100的内部空间的利用率。此外，发射和接收射频信号的功能也可以集成在其他芯片上，例如电池管理芯片。
此外，辐射体42用于在接收到射频收发电路41发射的射频信号时，向电子设备100的外部辐射信号。此外，辐射体42还可用于接收电子设备100外部的信号，并将接收到的信号转化成射频信号，传输给射频收发电路41上。
可以理解的是，辐射体42的设置方式具有多种形式。下文将结合相关附图具体介绍辐射体42的设置方式的五种实施例。
第一种实施例：请再次参阅图2，辐射体42包括第一辐射体421及第二辐射体422。第一辐射体421与第二辐射体422均可以用于辐射及接收信号。具体的，当射频信号经第一辐射体421耦合馈电至第二辐射体422时，第一辐射体421与第二辐射体422根据射频信号分别向电子设备100的外部辐射信号。此外，第二辐射体422也可以接收电子设备100的外部信号，并将信号转换成射频信号。射频信号经第二辐射体422耦合馈电至第一辐射体421。第一辐射体421可以将射频信号传输至射频收发电路41。
请参阅图3a，图3a是图1所示的电子设备100在M-M线处的一种实现方式的部分剖面示意图。电子设备100还包括支架50。支架50可以固定于电路板30背离屏幕20的一侧。
一种实施方式中，支架50可以为框状结构。支架50罩设于电路板30上，并与电路板30围设有空间S。电路板30上的部分电子元器件可以位于空间S内。此时，支架50可以用于保护电子元器件。在其他实施方式中，支架50也可以为板状或者块状。
此外，支架50具有朝向后盖11的第一表面55。第一辐射体421固定于第一表面55。一种实现方式中，部分支架50形成绝缘部，绝缘部的材质为绝缘材料。利用激光镭射成型技术(laser directstructuring，LDS)在绝缘部上形成第一辐射体421。此外，其他实现方式也可以通过在绝缘部上形成导电材料(例如金、银或铜等金属材料或者石墨烯)，该导电材料形成第一辐射体421。在其他实施方式中，支架50的材质也可以全部为绝缘材料。
此外，请参阅附图3b，并结合附图3a，图3b是图1所示的电子设备的后盖与第二辐射体的结构示意图。后盖11的材质可为绝缘材料。后盖11具有朝向收容空间13的第二表面115。第二辐射体422固定于第二表面115。一种实施方式中，通过LDS在后盖11的第二表面115形成第二辐射体422。
在其他实现方式中，后盖11也可以包括绝缘部及连接于绝缘部的导电部。此时，第二辐射体422固定于后盖11的绝缘部。此外，其他实现方式也可以通过第二表面115上形成导电材料(例如金、银或铜等金属材料或者石墨烯)。导电材料形成第二辐射体422。
在其他实施方式中，后盖11具有背离收容空间13的表面。第二辐射体422也可以固定于后盖11背离收容空间13的表面。其中，后盖11具有背离收容空间13的表面可以为后盖11裸露在外的表面。
在本实施方例中，通过将第一辐射体421固定在支架50的第一表面55上，第二辐射体422固定在第二表面115，从而使得第二辐射体422与第一辐射体421相耦合，也即当射频收发电路41发射射频信号时，射频信号可以通过第一辐射体421耦合馈电至第二辐射体422。第二辐射体422向电子设备100的外部辐射信号。
可以理解的是，当射频信号传输至第一辐射体421与第二辐射体422时，第一辐射体421与第二辐射体422可以产生一种谐振模式：对流模式，也即共模模式。或者，第一辐射体421与第二辐射体422可以产生多种谐振模式，例如对流模式和差模模式。换言之，本实施例的辐射体42可以产生对流模式。可以理解的是，因为对流模式的比吸收系数(specific absorption rate，SAR)较低，所以第一辐射体421和第二辐射体422所辐射的信号对用户的影响较小，从而使得具有天线40的电子设备100可以较大程度地满足用户的需求。
具体的，下文将结合相关附图具体介绍第一辐射体421与第二辐射体422具体结构，以及在该结构下产生对流模式的原理。
第一种实现方式，请再次参阅图3a，天线40还包括第一弹片43与第二弹片44。第一弹片43与第二弹片44均可以固定于电路板30。第一弹片43用于将射频收发电路41发射的射频信号馈入第一辐射体421。第二弹片44用于使第一辐射体421接地。在这种情况下，第一弹片43与第一辐射体421的接触点可以为馈电点B。第二弹片44与第一辐射体421的接触点为接地点A。在本实现方式中，馈电点B不仅限于下文附图3a所示意的位置，馈电点B也可以位于第一辐射体421上的任一位置。接地点A的位置将在下文具体限制。这里不再赘述。在其他实现方式中，射频收发电路41发射的射频信号也可以通过连接器馈入第一辐射体421。此外，第一辐射体421也可以通过连接器接地。
如图4所示，图4是图1所示的电子设备100的部分结构示意图。图4示意了当电子设备100去掉后盖11时，第二辐射体422与支架50上的第一辐射体421之间的位置关系。 第一辐射体421与第二辐射体422之间的位置不仅限于附图4所示意的部分第二辐射体422与第一辐射体421相对设置，部分第二辐射体422与第一辐射体421未相对设置。
如图5a及图5b所示，图5a是图4所示的电子设备的辐射体的一种实施方式的结构示意图。图5b是图5a所示的辐射体的侧视图。
第一辐射体421包括第一馈电枝节4211。第一馈电枝节4211呈条型状。
第二辐射体422包括第一枝节4221、第二枝节4222、第三枝节4911。第一枝节4221包括首端42211以及末端42212。第三枝节4911包括首端49111以及末端49112。第二枝节4222的一端连接于第一枝节4221的首端42211与末端42212之间，另一端连接于第三枝节4911的首端49111与末端49112之间。第一枝节4221的首端42211与末端42212位于第二枝节4222的两侧。第三枝节4911的首端49111与末端49112位于第二枝节4222的两侧。可以理解的是，第二枝节4222的两侧可以理解为第二枝节4222本身的两侧，也可以理解为在第二枝节4222的延伸方向上的两侧。
此外，第一枝节4221与第一馈电枝节4211间隔且相对设置。第二枝节4222的一部分与第一馈电枝节4211间隔且相对设置，另一部分与第一馈电枝节4211间隔但未相对设置。第三枝节4911与第一馈电枝节4211间隔但未相对设置。
此外，第一枝节4221具有背向第二枝节4222的基准面5。基准面5在第一馈电枝节4211的所在平面P的投影为第一投影b。附图5a示意了第一投影b为一条线条。第一投影b位于第一馈电枝节4211内。换言之，当第一投影b位于第一馈电枝节4211内时，第二辐射体422靠近第一馈电枝节4211设置。在其他实施方式中，基准面5也可以为弧面，第一投影b可以是一弧线，也可以是一区域。
请参阅图5c,图5c是图5a所示的辐射体42的俯视图。
第一馈电枝节4211包括第一端面1及远离第一端面1设置的第二端面2。第一端面1的中点至接地点A的距离为第五值d5。第二端面2的中点至接地点A的距离为第六值d6。第五值d5与第六值d6的比值在0.3至3的范围内。换言之，第一馈电枝节4211为准对称或者对称结构。本实现方式的第五值d5与第六值d6的比值为1。在其他实现方式中，第五值d5与第六值d6的比值也可以为0.3、0.8、1.2、2.3或者2.9。
此外，第三枝节4911包括第一分叉枝节4223及第二分叉枝节4224。第一分叉枝节4223及第二分叉枝节4224均呈条型状。第一分叉枝节4223的首端42231连接于第二分叉枝节4224的首端42241。第一分叉枝节4223朝远离基准面5的方向延伸。第二分叉枝节4224朝远离基准面5的方向延伸。此外，附图5c示意了第一分叉枝节与第二分叉枝节的夹角a为165°。在其他实施方式中，a满足0°＜a≤180°，也即a可以为10°、20°、33°、73°、122°、155°或者180°。
此外，第一分叉枝节4223的末端端面3至基准面5的中心距离为第一值d1。可以理解的是，中心距离指的是末端端面3的中心与基准面5的中心的距离。第二分叉枝节4224的末端端面4至基准面5的中心距离为第二值d2。此时，第一值d1与第二值d2的比值在0.5至2的范围内。换言之，第二辐射体422为准对称或者对称结构。本实现方式的第一值d1与第二值d2的比值为1。在其他实现方式中，第一值d1与第二值d2的比值也可以为0.8、1.22、1.5或者2。
请参阅图6，图6是图5a所示的辐射体42在频段为0至6GHz的反射系数(也即回波损耗)与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在0至6GHz可以产生两个谐振频率。附图6示意了第一辐射体421与第二辐射体422产生的两个谐振频率分别为f1及f2。可以理解的是，本实现方式是以频段0至6GHz为例进行描述。当然，在其他实现方式中，在其他频段(例如：6GHz至8GHz，或者8GHz至11GHz)，第一辐射体421与第二辐射体422也可以产生的两个谐振频率分别为f1及f2。此外，下文各个实现方式中也均是以频段0至6GHz为例进行描述。可以理解的是，下文各个实现方式在其他频段也同样适用。具体的本申请不做限制。
以下结合图7和图8来具体描述一下谐振频率f1及f2均为对流模式的谐振频率。图7是图5a所示的辐射体42在频率为f1的射频信号下的电流的流向示意图。图8是图5a所示的辐射体42在频率为f2的射频信号下的电流的流向示意图。
请参阅图7，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f1处，第一馈电枝节4211具有自第一端面1向接地点A流动的第一电流，以及自第二端面2向接地点A的方向流动的第二电流。附图7通过带有箭头的实线示意了第一电流和第二电流。
此外，当第二辐射体422靠近第一馈电枝节4211设置时，第一馈电枝节4211与第二辐射体422可以实现强耦合。此外，因为第二辐射体422为准对称或者对称结构，所以第二辐射体422具有自第一分叉枝节4223的末端端面3向第二枝节4222流动的第三电流，以及第二分叉枝节4224的末端端面4向第二枝节4222的方向流动的第四电流。附图7通过带有箭头的虚线示意了第三电流以及第四电流。
故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f1处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式。此外，频率f1为对流模式的谐振频率，也即附图6中所示意的第一个谐振频率f1。
此外，通过测量第一电流、第二电流、第三电流以及第四电流的强度可知，第一电流和第二电流的强度大于第三电流以及第四电流的强度，也即第一馈电枝节4211上的电流强度大于第二辐射体422上电流的强度。故而，谐振频率f1主要为第一馈电枝节4211所产生的谐振频率。
请参阅图8，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f2处，第一馈电枝节4211具有自第一端面1向接地点A流动的第一电流，以及自第二端面2向接地点A的方向流动的第二电流。附图7通过带有箭头的实线示意了第一电流和第二电流。
此外，当第二辐射体422靠近第一辐射体421设置时，第一馈电枝节4211与第二辐射体422可以实现强耦合。此外。因为第二辐射体422为准对称或者对称结构，所以第二辐射体422具有自第一枝节4221的首端42211向第一分叉枝节4223的末端端面3流动的第三电流，以及第一枝节4221的末端42212向第二分叉枝节4224的末端端面4流动的第四电流。附图8通过带有箭头的虚线示意了第三电流以及第四电流。
故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f2 处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式，此外，频率f2为对流模式的谐振频率，也即附图6中所示意的第一个谐振频率f2。
此外，通过测量第一电流、第二电流、第三电流以及第四电流的强度可知，第三电流和第四电流的强度大于第一电流以及第二电流的强度，也即第一馈电枝节4211上的电流强度小于第二辐射体422上电流的强度。故而，谐振频率f2主要为第二辐射体422所产生的谐振频率。
通过上文并结合附图7及图8可知，附图6所示意的两个谐振频率均为对流模式的谐振频率。换言之，本实现方式的第一辐射体421与第二辐射体422能够产生两个对流模式。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第一辐射体421与第二辐射体422可以在该频段内产生两个对流模式的谐振频率。天线40的工作频段设置在对流模式的谐振频率的附近，这样在第一辐射体421与第二辐射体422辐射信号时，信号对用户影响较小。
此外，因为第一辐射体421与第二辐射体422在0至6GHz内可以产生数量大于一个的对流模式，所以在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。换言之，对流模式较多，设置在谐振频率附近的工作频段也较广。
在本实施方式中，第一辐射体421与第二辐射体422产生的两个谐振频率f1及f2可以为0到6GHz中的任意值。例如，f1可以为4GHz。f2可以为4.6GHz。可以理解的是，两个谐振频率f1及f2的大小与第一馈电枝节4211的长度、第二枝节4222的长度、第一枝节4211的长度、第一分叉枝节4223的长度、第二分叉枝节4224的长度、馈电点B的位置或者第一辐射体421及第二辐射体422的所在外部环境(例如，第一辐射体421与第二辐射体422的固定位置)等因素是相关的。换言之，通过改变第一馈电枝节4211的长度、第二枝节4222的长度、第一枝节4211的长度、第一分叉枝节4223的长度、第二分叉枝节4224的长度、馈电点B的位置或者第一辐射体421及第二辐射体422的所在外部环境等因素，可以改变f1及f2的值。
例如，在相同条件下，将第一馈电枝节4211的长度从30毫米改变为28毫米时，第一谐振频率f1可以从4GHz改变至4.1GHz。
再例如，在相同条件下，将第一值d1与第二值d2的比值从1改变为2时，第二个谐振频率从4.6GHz改变为4.5GHz。
在其他实现方式中，当第一辐射体421与第二辐射体422可以产生差模模式时，通过改变第一馈电枝节4211的长度、第二枝节4222的长度、第一枝节4211的长度、第一分叉枝节4223的长度、第二分叉枝节4224的长度、第五值d5与第六值d6的比值、第一值d1与第二值d2的比值、馈电点B的位置或者第一辐射体421及第二辐射体422的所在外部环境等因素来也可以相应地改变差模模式的谐振频率。
在其他实现方式中，请参阅图9，图9是本申请实施例提供的辐射体42的另一种实现方式的结构示意图。第一分叉枝节4223的形状为弧状。第二分叉枝节4224的形状为条型。此时，第一枝节4221、第二枝节4222、第一分叉枝节4223及第二分叉枝节4224形成大致呈“工”型的形状。可以理解的是，本实现方式中的第一馈电枝节4211与第二辐射体422也可以产生两个对流模式。第一馈电枝节4211与第二辐射体422产生两个对流模式的原理与 第一种实现方式产生的两个对流模式的原理相同，具体这里不再赘述。此外，在其他实现方式中，第一分叉枝节4223的形状与第二分叉枝节4224的形状也可以相互对调。
第二种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：
如图10所示，图10是本申请实施例提供的辐射体的另一种实现方式的结构示意图。第二辐射体422还包括第四枝节4225、第三分叉枝节4226及第四分叉枝节4227。第四枝节4225、第三分叉枝节4226及第四分叉枝节4227位于第一枝节4221背离第二枝节4222的一侧。第三分叉枝节4226的首端42261连接于第四分叉枝节4227的首端42271。此外，第四枝节4225的一端连接于第三分叉枝节4226的首端42261与第四分叉枝节4227的首端42271，另一端连接于基准面5。第三分叉枝节4226的末端42262与第四分叉枝节4227的末端42272位于第四枝节4225的两侧。第三分叉枝节4226向远离基准面5的方向延伸。第四分叉枝节4227向远离基准面5的方向延伸。第二辐射体422呈“王”字型，或者大致呈“王”字型。
第四枝节4225的两侧可以理解为第四枝节4225本身的两侧，也可以理解为第四枝节4225的延伸方向上的两侧。
一种实施方式中，第三分叉枝节4226与第四分叉枝节4227呈条状。第三分叉枝节4226与第四分叉枝节4227的夹角大小也与第一种实现方式中第一分叉枝节4223与第二分叉枝节4224的夹角a相同。
此外，第三分叉枝节4226的末端端面42263与基准面5的中心距离为第三值d3。第四分叉枝节4227的末端端面42273与基准面5的中心距离为第四值d4。第三值d3与第四值d4的比值可以在0.5至2的范围内。换言之，当第二辐射体422还包括第四枝节4225、第三分叉枝节4226及第四分叉枝节4227时，第二辐射体422依然为准对称或者对称结构。在本实现方式中，第三值d3与第四值d4的比值为1。在其他实现方式中，第三值d3与第四值d4的比值也可以为0.8、1.22、1.5或者2。
请参阅图11，并结合附图10所示，图11是图10所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，射频信号传输至第一辐射体421与第二辐射体422。此时，第一馈电枝节4211与第二辐射体422在该频段内产生三个谐振频率。附图11示意了第一馈电枝节4211与第二辐射体422产生的三个谐振频率分别为f1、f2及f3。
可以理解的是，第一个谐振频率f1和第二个谐振频率f2的形成原理与第一种实现方式的第一个谐振频率f1和第二个谐振频率f2的形成原理相同。这里不再赘述。此外，第三个谐振频率f3主要为第三分叉枝节4226及第四分叉枝节4227所产生。
具体的，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f3处，第二辐射体422具有自第一枝节4221的首端42211向第三分叉枝节4226的末端端面42263流动的电流，以及第一枝节4221的末端42212向第四分叉枝节4227的末端端面42273流动的电流。通过第三分叉枝节4226及第四分叉枝节4227上电流分布可以确认，第三分叉枝节4226及第四分叉枝节4227所产生的谐振模式为对流模式。此外，频率f3为对流模式的谐振频率，也即附图11所示意的第三个谐振频率f3。
可以理解的是，第一辐射体421与第二辐射体422所产生的三个谐振频率f1、f2及f3可以为0到6GHz中的任意值。例如，f1、f2及f3分别为4GHz、4.6GHz及5GHz。
此外，当第四枝节4225的长度、第三分叉枝节4226的长度、第四分叉枝节4227的长度或者第三值d3与第四值d4的比值发生改变时，第三个谐振频率f3也会发生改变。例如，在相同条件下，当第三值d3与第四值d4的比值从1改变到2时，第三个谐振频率f3可以从5GHz改变为5.1GHz。
在本实现方式中，通过在第一枝节4221背离第二枝节4222的一侧连接第四枝节4225、第三分叉枝节4226及第四分叉枝节4227，从而利用第三分叉枝节4226及第四分叉枝节4227产生第三个对流模式，也即第一辐射体421与第二辐射体422产生的对流模式的数量增加至三个。此时，在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。换言之，天线的工作频段可以为三个对流模式对应的谐振频率，例如，工作频段为3.8GHz至4.2GHz、4.4GHz至4.8GHz以及4.8GHz至5.2GHz。
第三种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：如图12所示，图12是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第二辐射体422还包括第四枝节4225、第三分叉枝节4226及第四分叉枝节4227。第四枝节4225、第三分叉枝节4226及第四分叉枝节4227均位于第一分叉枝节4223及第二分叉枝节4224背离第二枝节4222的一侧。第三分叉枝节4226的首端42261连接于第四分叉枝节4227的首端42271。第四枝节4225的一端连接于第三分叉枝节4226的首端42261与第四分叉枝节4227的首端42271，另一端连接于第一分叉枝节4223的首端42231及第二分叉枝节4224的首端42241。第三分叉枝节4226的末端42262与第四分叉枝节4227的末端42272位于第四枝节4225的两侧。第三分叉枝节4226向远离基准面5的方向延伸。第四分叉枝节4227向远离基准面5的方向延伸。第二辐射体422呈“王”字型，或者大致呈“王”字型。
第四枝节4225的两侧可以理解为第四枝节4225本身的两侧，也可以理解为第四枝节4225的延伸方向上的两侧。
一种实施方式中，第三分叉枝节4226与第四分叉枝节4227呈条状。第三分叉枝节4226与第四分叉枝节4227的夹角大小也与第一种实现方式中第一分叉枝节4223与第二分叉枝节4224的夹角a相同。
此外，第三分叉枝节4226的末端端面42263与基准面5的中心距离为第三值d3。第四分叉枝节4227的末端端面42273与基准面5的中心距离为第四值d4。第三值d3与第四值d4的比值在0.5至2的范围内。换言之，当第二辐射体422还包括第四枝节4225、第三分叉枝节4226及第四分叉枝节4227时，第二辐射体422依然为准对称或者对称结构。在本实现方式中，第三值d3与第四值d4的比值为1。在其他实现方式中，第三值d3与第四值d4的比值也可以为0.8、1.22、1.5或者2。
可以理解的是，当射频收发电路41发射频段在0至6GHz的射频信号时，射频信号传输至第一辐射体421与第二辐射体422。此时，第一辐射体421与第二辐射体422在该频段内将产生三个谐振频率，三个谐振频率分别为f1、f2及f3。其中，该三个谐振模式也均为对流模式。此外，第一个谐振频率f1和第二个谐振频率f2的形成原理与第一种实现方式的第一个谐振频率f1和第二个谐振频率f2的形成原理相同。这里不再赘述。此外，第三个 谐振频率f3主要为第三分叉枝节4226及第四分叉枝节4227所产生。
具体的，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f3处，第二辐射体422具有自第四枝节4225向第三分叉枝节4226的末端端面42263流动的电流，以及第四枝节4225向第四分叉枝节4227的末端端面42273流动的电流。通过第三分叉枝节4226及第四分叉枝节4227上电流分布可以确认，第三分叉枝节4226及第四分叉枝节4227所产生的谐振模式为对流模式。此外，频率f3为对流模式的谐振频率。
可以理解的是，第一辐射体421与第二辐射体422所产生的三个谐振频率f1、f2及f3可以为0到6GHz中的任意值。例如，f1、f2及f3分别为4GHz、4.6GHz及5GHz。
此外，当第四枝节4225的长度、第三分叉枝节4226的长度、第四分叉枝节4227的长度或者第三值d3与第四值d4的比值发生改变时，第三个谐振频率f3也会发生改变。例如，在相同条件下，当第三值d3与第四值d4的比值从1改变到2时，第三个谐振频率f3可以从5GHz改变为5.1GHz。
在本实现方式中，通过在第一分叉枝节4223及第二分叉枝节4224背离第二枝节4222的一侧连接第四枝节4225、第三分叉枝节4226及第四分叉枝节4227，从而利用第三分叉枝节4226及第四分叉枝节4227上的电流产生第三个对流模式，也即第一辐射体421与第二辐射体422产生的对流模式的数量增加至三个。此时，在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。换言之，天线的工作频段可以为三个对流模式的谐振频率，例如，工作频段为3.8GHz至4.2GHz、4.4GHz至4.8GHz以及4.8GHz至5.2GHz。
第四种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：请参阅图13及图14，图14是图13所示的辐射体的俯视图。基准面5在第一馈电枝节4211的所在平面的第一投影b与第一馈电枝节4211的最短距离L在0至3毫米的范围内。换言之，第一馈电枝节4211靠近第二辐射体422设置。本实现方式的最短距离L为1毫米。在其他实现方式中，最短距离L可以为0毫米、0.2毫米、0.75毫米、1.3毫米或者2.6毫米。
请参阅图15，图15是图14所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当频率在0至6GHz的射频信号馈电至第一辐射体421及第二辐射体422时，第一辐射体421及第二辐射体422在该频段内将产生两个谐振模式，也即第一辐射体421与第二辐射体422在该频段内可以产生两个谐振频率。附图15示意了第一辐射体421与第二辐射体422产生的两个谐振频率分别为f1及f2。可以理解的是，本实现方式的两个对流模式的形成原理与第一种实现方式的第一个对流模式和第二个对流模式的形成原理相同。这里不再赘述。
在本实施方式中，第一辐射体421与第二辐射体422产生的两个谐振频率f1及f2可以为0到6GHz中的任意值。例如，f1可以为4GHz。f2可以为4.6GHz。此外，当馈电点B的位置或者第一辐射体421及第二辐射体422的所在外部环境(例如，第一辐射体421与第二辐射体422的固定位置)发生改变时，第一辐射体421与第二辐射体422产生的两个谐振频率f1及f2也会发生改变，也即两个谐振频率f1及f2可以为其他值。
例如，在相同的条件下，当最短距离L从1毫米改变为1.2毫米时，第一辐射体421 与第二辐射体422产生的第二个谐振频率f2改变为4.6GHz改变4.7GHz。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第一辐射体421与第二辐射体422可以在该频段内产生对流模式。天线40的工作频段可以设置在对流模式的谐振频率的周围，从而在第一辐射体421与第二辐射体422辐射信号时，第一辐射体421与第二辐射体422辐射的信号对用户的影响较小。
在其他实现方式中，第二辐射体422的结构并不限于附图13及附图14所示意的结构。第二辐射体422的结构还可以是第一种实现方式至第三种实现方式中的任一种结构。具体的本实现方式不做限制。
第五种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：如图16所示，图16是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一辐射体421还包括连接枝节4212及第二馈电枝节4213。第二馈电枝节4213包括第一末端42131及远离第一末端42131设置的第二末端42132。连接枝节4212的一端连接在第一馈电枝节4211的第一端面1与所述第二端面2之间，另一端连接在第一末端42131与第二末端42132之间。此外，第一末端42131与第二末端42132位于连接枝节4212的两侧。
可以理解的是，连接枝节4212的两侧可以理解为连接枝节4212本身的两侧，也可以理解为在连接枝节4212的延伸方向上的两侧。
一种实现方式中，第一馈电枝节4211、连接枝节4212及第二馈电枝节4213的形状均呈条型。此时，第一辐射体421呈“工”字型，或者大致呈“工”字型。当然，在其他实现方式中，连接枝节4212与第二馈电枝节4213的形状也可以为其他形状。例如，第二馈电枝节4213为弧状。本申请不做具体的限制。
此外，第一末端42131的端面42133的中心与接地点A的距离为第七值d7。第二末端42132的端面42134的中心与接地点A的距离为第八值d8。第七值d7与第八值d8的比值在0.3至3的范围内。在本实现方式中，第七值d7与第八值d8的比值为1。在其他实现方式中，第七值d7与第八值d8的比值也可以为0.5、0.6、2或者2.5。
可以理解的是，当射频收发电路41发射频段在0至6GHz的射频信号时，射频信号传输至第一辐射体421与第二辐射体422。此时，第一辐射体421与第二辐射体422在该频段内将产生三个谐振频率，三个谐振频率分别为f1、f2及f3。其中，该三个谐振模式也均为对流模式。此外，第一个谐振频率f1和第二个谐振频率f2的形成原理与第一种实现方式的第一个谐振频率f1和第二个谐振频率f2的形成原理相同。这里不再赘述。第三个谐振频率f3主要为第二馈电枝节4213所产生。
具体的，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f3处，第二馈电枝节4213具有自连接枝节4212向第二馈电枝节4213的两端面流动的电流。通过第二馈电枝节4213上电流分布可以确认，第二馈电枝节4213所产生的谐振模式为对流模式。此外，频率f3为对流模式的谐振频率。
可以理解的是，第二馈电枝节4213所产生的第三个谐振频f3可以为0至6GHz频段内的任意值。例如，f3为5GHz。此外，当第二馈电枝节4213的长度、连接枝节4212的长度以及第七值d7与第八值d8的比值发生改变时，第三个对流模式的谐振频率f3也会发 生改变，也即第三个对流模式的谐振频率也可以为其他值。
在本实现方式中，通过在第一馈电枝节4211的一侧设置连接枝节4212及第二馈电枝节4213，从而利用连接枝节4212及第二馈电枝节4213上的电流产生第三个对流模式，也即第一辐射体421与第二辐射体422产生的对流模式的数量增加至三个。此时，在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。换言之，天线的工作频段可以为三个对流模式的谐振频率的所在周围频段设置。
在其他实现方式中，第二辐射体422的结构不仅限于图16所示的结构。第二辐射体422也可以是第二种实现方式至第三种实现方式中的任一种结构。具体的这里不再赘述。
第六种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：如图17所示，图17是图1所示的电子设备100在M-M线处的另一种实现方式的剖面示意图。辐射体42还包括第三辐射体423。第三辐射体423位于第二辐射体422背离第一辐射体421的一侧。
在本实现方式中，通过LDS在后盖11背离收容空间13的表面形成第三辐射体423，也即第三辐射体423形成于后盖11的外表面。此外，由第一种实现方式可知，第一辐射体421形成于支架50的第一表面55。第二辐射体422形成于后盖11的第二表面115。此时，也即第一辐射体421、第二辐射体422与第三辐射体423位于不同层。当然，第三辐射体423也可以通过其他方式形成。例如通过在后盖11背离收容空间13的表面形成导电材料(例如金、银或铜等金属材料或者石墨烯)，该导电材料形成第三辐射体423。
请参阅图18，图18是图17所示的电子设备100的辐射体42的结构示意图。第三辐射体423包括第五分叉枝节4231及第六分叉枝节4232。第五分叉枝节4231的首端42311及第六分叉枝节4232的首端42321彼此连接。第五分叉枝节4231朝远离第六分叉枝节4232的首端42321的方向延伸。第六分叉枝节4232朝远离第五分叉枝节4231的首端42311的方向延伸。
此外，第三辐射体423在第一辐射体421的投影部分位于第一辐射体421内。在其他实施方式中，第三辐射体423在第一辐射体421的投影也可以全部位于第一辐射体421内。
此外，第五分叉枝节4231的首端端面42313与末端端面42314的中心距离为第九值d9。第六分叉枝节4232的首端端面42323与末端端面42324的中心距离为第十值d10。第九值d9与第十值d10的比值在0.5至2的范围内。换言之，第三辐射体423为准对称或者对称结构。在本实现方式中，第九值d9与第十值d10的比值为1。在其他实现方式中，第九值d9与第十值d10的比值也可以为0.8、1.22、1.5或者2。
请参阅图19，图19是图18所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，射频信号传输至第一馈电枝节4211、第二辐射体422及第三辐射体423。此时，第一馈电枝节4211、第二辐射体422及第三辐射体423在该频段内产生三个谐振频率。附图19示意了第一馈电枝节4211、第二辐射体422及第三辐射体423产生的三个谐振频率分别为f1、f2及f3。
可以理解的是，第一个谐振频率f1和第二个谐振频率f2的形成原理与第一种实现方式的第一个谐振频率f1和第二个谐振频率f2的形成原理相同。这里不再赘述。此外，第三个谐振频率f3主要为第三辐射体423产生的谐振模式。
具体的，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至 第一馈电枝节4211、第二辐射体422及第三辐射体423。此时，在频率为f3处，第三辐射体423具有自第五分叉枝节4231的首端42311流至末端42312，以及第六分叉枝节4232的首端42321流至末端42322的电流。通过第三辐射体423上的电流分布可以确认，第三辐射体423所产生的谐振模式为对流模式。此外，频率f3为对流模式的谐振频率，也即附图19所示意的第三个谐振频率f3。
可以理解的是，第一馈电枝节4211、第二辐射体422及第三辐射体423所产生的三个谐振频率f1、f2及f3可以为0到6GHz中的任意值。例如，f1、f2及f3分别为4GHz、4.6GHz及5GHz。
此外，当第五分叉枝节4231的长度、第六分叉枝节4232的长度或者第九值d9与第十值d10的比值发生改变时，第三个谐振频率f3也会发生改变。例如，在相同条件下，当第三值d3与第四值d4的比值从1改变到2时，第三个谐振频率f3可以从5GHz改变为5.1GHz。
在本实现方式中，通过在第二辐射体422背离第一辐射体421的一侧设置第三辐射体423，从而利用第三辐射体423上的电流产生第三个对流模式，也即第一辐射体421、第二辐射体422与第三辐射体423产生的对流模式的数量增加至三个。此时，在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。换言之，天线的工作频段可以为三个对流模式的谐振频率的所在周围频段，例如，工作频段为3.8GHz至4.2GHz、4.4GHz至4.8GHz以及4.8GHz至5.2GHz。
在其他实现方式中，第一辐射体421的结构并不限于附图18所示意的结构。第一辐射体421的结构还可以是第五种实现方式的第一辐射体421的结构。此外，第二辐射体422的结构并不限于附图18所示意的结构。第二辐射体422的结构还可以是第二种实现方式至第三种实现方式中的任一种结构。具体的本实现方式不做限制。
在其他实现方式中，第三辐射体423也可以为多枝节结构，例如，第三辐射体423的形状为“工”字型或者“王”字型。
在其他实现方式中，如图20a所示，图20a是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第三辐射体423在第一辐射体421的投影与第一辐射体421之间的最短距离L在0至3毫米的范围内。例如，L可以为0毫米、0.2毫米、0.75毫米、1.3毫米或者2.6毫米。
在本实现方式中，第一辐射体421、第二辐射体422及第三辐射体423也可以产生三个对流模式。可以理解的是，本实现方式的三个对流模式的形成原理与第六种实现方式的三个对流模式的形成原理相同。这里不再赘述。
在其他实现方式中，如图20b所示，图20b是图1所示的电子设备100在M-M线处的再一种实现方式的剖面示意图。辐射体42还可以包括第四连接枝节424。第四连接枝节424连接在第三辐射体423与第二辐射体422之间。一种实现方式中，可以通过在后盖11开设通孔111。通孔111贯穿后盖11的内表面和外表面。第四连接枝节424位于通孔111内。此时，因为第三辐射体423形成在后盖11的外表面，第二辐射体422形成在后盖11的内表面，所以第四连接枝节424便可以将第三辐射体423连接至第二辐射体422上。
第七种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：如图21所示， 图21是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一辐射体421具有馈电点B，未具有接地点A。
本实现方式的第五值d5和第六值d6与第一种实现方式的第五值d5和第六值d6的定义不同。具体的，第一端面1的中心与第一馈电枝节4211的馈电点B的距离为第五值d5。第二端面2的中心与馈电点B的距离为第六值d6。第五值d5与第六值d6的比值在0.3至3的范围内。此时，第一辐射体421也为准对称或者对称结构。本实现方式的第五值d5与第六值d6的比值为1。在其他实现方式中，第五值d5与第六值d6的比值也可以为0.3、0.8、1.2、2.3或者2.9。
可以理解的是，当频率在0至6GHz的射频信号馈电至第一馈电枝节4211及第二辐射体422时，第一馈电枝节4211及第二辐射体422在该频段内将产生两个谐振模式，也即第一馈电枝节4211与第二辐射体422在该频段内可以产生两个谐振频率，两个谐振频率分别为f1及f2。
此时，在频率为f1处，第一馈电枝节4211具有自第一端面1向馈电点B流动的第一电流，以及自第二端面2向馈电点B的方向流动的第二电流。此外，第二辐射体422上的电流分布与第一种实施方式的第二辐射体422的电流分布相同。故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f1处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式。此外，频率f1为对流模式的谐振频率。
此外，在频率为f2处，第一馈电枝节4211具有自第一端面1向馈电点B流动的第一电流，以及自第二端面2向馈电点B的方向流动的第二电流。此外，第二辐射体422上的电流分布与第一种实施方式的第二辐射体422的电流分布相同。故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f2处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式，此外，频率f2为对流模式的谐振频率。
可以理解的是，第一辐射体421的结构并不限于附图21所示意的结构。第一辐射体421的结构还可以是第五种实现方式中的第一辐射体421的结构。此外，第二辐射体422的结构并不限于附图21所示意的结构。第二辐射体422的结构还可以是第二种实现方式至第三种实现方式中的任一种结构。具体的这里不再赘述。当然，在其他实现方式中，辐射体42也可以包括有第三辐射体423。第三辐射体423设置方式可参考第六种实现方式，具体这里不再赘述。在其他实施方式中，第一辐射体421与第二辐射体422的位置关系也可参考第四中实现方式。具体这里不再赘述。
第八种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：请参阅图22，图22是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一辐射体421可以为倒F天线(Inverted-F Antenna，IFA)，或者也可以为复合左右手天线(composite right/left handed antenna，CRLH)。
请参阅图23，图23是图22所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在该频段内将产生三个谐振模式，也即第一辐射体421与第二辐射体422在该频段内可以产生三个谐振频率。附图23示意了第一辐射体421与第二辐射体422产生的谐振频率分别为f1、f2及f3。此外， 通过观察频率分别为f1、f2及f3上的第一辐射体421与第二辐射体422的电流分布，可以确认第一个谐振模式可以为四分之一模式、第二个谐振模式为对流模式以及第三个谐振模式为差模模式。
可以理解的是，本实施方式的对流模式的形成原理与第一种实现方式的第二个对流模式的形成原理相同。这里不再赘述。
可以理解的是，当馈电枝节4211的长度、第一枝节4211的长度、第二枝节4222的长度、第一分叉枝节4223的长度、第二分叉枝节4224的长度、馈电点B的位置发生变化、接地点A的位置发生变化、第二辐射体422与第一辐射体421的相对位置或者第一辐射体421与第二辐射体422的所在外部环境发生改变时，该对流模式的谐振频率也将发生变化。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第一辐射体421与第二辐射体422可以在该频段内产生对流模式。此时，天线40的工作频段可以为在对流模式的谐振频率的周围，从而在第一辐射体421与第二辐射体422辐射信号时，第一辐射体421与第二辐射体422辐射的信号对用户的影响较小。
在其他实现方式中，第二辐射体422的结构并不限于附图22所示意的结构。第二辐射体422的结构还可以是第二种实现方式至第三种实现方式中的任一种结构。具体的，这里不再赘述。此外，第一辐射体421与第二辐射体422的位置关系也可以为第四种实现方式所示意的位置。辐射体42也可以包括有第三辐射体423。第三辐射体423设置方式可参考第六种实现方式，具体这里不再赘述。
第九种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：请参阅图24，图24是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一辐射体421为环形天线(loop antenna)。此时，第一辐射体421的形状呈“匚”型，或者大致呈“匚”型。
可以理解的是，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在该频段内将产生三个谐振模式，也即第一辐射体421与第二辐射体422在该频段内可以产生三个谐振频率分别为f1、f2及f3。此外，通过观察频率分别为f1、f2及f3上的第一辐射体421与第二辐射体422的电流分布，可以确认第一个谐振模式可以为四分之一模式、第二个谐振模式为对流模式以及第三个谐振模式为差模模式。
可以理解的是，该对流模式的形成原理与第一种实现方式的第二个对流模式的形成原理相同。这里不再赘述。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第一辐射体421与第二辐射体422可以在该频段内产生对流模式。此时，天线40的工作频段可以为在对流模式的谐振频率的周围，从而在第一辐射体421与第二辐射体422辐射信号时，第一辐射体421与第二辐射体422辐射的信号对用户的影响较小。
可以理解的是，第二辐射体422的位置不仅限于附图24所示意的正对于第一辐射体421的一个端部，第二辐射体422的位置也可以正对于第一辐射体421的任一位置。
在其他实现方式中，第二辐射体422的结构并不限于附图24所示意的结构。第二辐射体422的结构还可以是第二种实现方式至第三种实现方式中的任一种结构。具体的，这里不再赘述。此外，第一辐射体421与第二辐射体422的位置关系也可以为第四种实现方式 所示意的位置。辐射体42也可以包括有第三辐射体423。第三辐射体423设置方式可参考第六种实现方式，具体这里不再赘述。
第十种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：如图25a所示，图25a是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第二辐射体422包括第一枝节4221、第一分叉枝节4223及第二分叉枝节4224。第一分叉枝节4223的首端42231及第二分叉枝节4224的首端42241连接第一枝节4221。第一分叉枝节4223的末端42232与所述第二分叉枝节4224的末端42242位于所述第一枝节4221的两侧。此时，第二辐射体422呈“Y”型，或者大致呈“T”型。
所述第一枝节4221的两侧可以理解为第一枝节4221本身的两侧，也可以理解为在第一枝节4221的延伸方向上的两侧。
此外，第一枝节4221具有背向第一分叉枝节4223及第二分叉枝节4224的基准面5。
此外，基准面5在第一馈电枝节4211投影与第一馈电枝节4211部分重合。在其他实施方式中，基准面5在第一馈电枝节4211投影与第一馈电枝节4211也可以全部重合。
此外，第一分叉枝节4223的末端端面3至基准面5的中心距离为第一值d1。第二分叉枝节4224的末端端面4至基准面5的中心距离为第二值d2。此时，第一值d1与第二值d2的比值在0.5至2的范围内。此时，第二辐射体422为准对称或者对称结构。本实现方式的第一值d1与第二值d2的比值为1。在其他实现方式中，第一值d1与第二值d2的比值也可以为0.8、1.22、1.5或者2。
可以理解的是，当频段在0至6GHz的射频信号馈电至第一馈电枝节4211与第二辐射体422时，第一辐射体421与第二辐射体422在该频段内将产生两个谐振模式，也即第一辐射体421与第二辐射体422在该频段内可以产生两个谐振频率。其中，两个谐振模式均为对流模式。此外，两个对流模式的形成原理与第一种实现方式的第一个对流模式和第二个对流模式的形成原理相同。这里不再赘述。
在其他实施方式中，请参阅图25b，图25b是本申请实施例提供的辐射体的再一种实现方式的结构示意图。基准面5在第一馈电枝节4211投影与第一馈电枝节4211之间的最短距离L在0至3毫米的范围内。本实现方式的最短距离L为1毫米。在其他实现方式中，最短距离L可以为0毫米、0.2毫米、0.75毫米或者1.3毫米。此时，当频率在0至6GHz的射频信号馈电至第一馈电枝节4211与第二辐射体422时，第一馈电枝节4211与第二辐射体422上的电流也可以产生两个对流模式。可以理解的是，第一个对流模式的形成原理与第十种实现方式的第一对流模式的形成原理相同。第二个对流模式的形成原理与第十种实现方式的第二对流模式的形成原理相同。这里不再赘述。
此外，当最短距离L为其他值时，第二个谐振频率f2也会发生改变，也即第二个谐振频率f2可以为其他值。
第十一种实现方式，与第九种实现方式大部分相同的技术内容不再赘述：如图25c所示，图25c是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第二辐射体422包括第一分叉枝节4223及第二分叉枝节4224。第一分叉枝节4223的首端42231及第二分叉枝节4224的首端42241彼此连接。第一分叉枝节4223朝着远离第二分叉枝节4224的首端42241的方向延伸。第二分叉枝节4224朝着远离第一分叉枝节4223的首端42231 的方向延伸。
一种实现方式中，第一分叉枝节4223及第二分叉枝节4224均呈条型。此时，第二辐射体422呈“V”型，或者大致呈“V”型。
此外，第二辐射体422在第一辐射体421的投影部分位于第一辐射体421内。在其他实施方式中，第二辐射体422在第一辐射体421的投影全部位于第一辐射体421内。
此外，第一分叉枝节4223的首端端面1与末端端面3的中心距离为第一值d1。第二分叉枝节4224的首端端面2与末端端面4的中心距离为第二值d2。第一值d1与第二值d2的比值在0.5至2的范围内。本实现方式的第一值d1与第二值d2的比值为1。在其他实现方式中，第一值d1与第二值d2的比值也可以为0.8、1.22、1.5或者2。
请参阅图26，图26是图25c所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在0至6GHz可以产生两个谐振频率。附图26示意了第一辐射体421与第二辐射体422产生的两个谐振频率分别为f1及f2。
可以理解的是，第一个谐振频率f1的形成原理与第一种实现方式的第一谐振频率f1的形成原理相同。这里不再赘述。此外第二个谐振频率主要为第二辐射体422所产生。
具体的，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f2处，第二辐射体422可以产生自第一分叉枝节4223的首端42231流至末端端面3，以及第二分叉枝节4224的首端2流至末端端面4的电流。此外，通过第二辐射体422上电流分布可以确认，第二辐射体422所产生的谐振模式为对流模式。此外，频率f2为对流模式的谐振频率，也即附图26所示意的第二个谐振频率f2。
可以理解的是，第一辐射体421与第二辐射体422所产生的两个谐振频率f1及f2可以为0到6GHz中的任意值。例如，f1及f2分别为4GHz及5GHz。
此外，当第一分叉枝节4223的长度、第二分叉枝节4224的长度或者第一值d1与第二值d2的比值发生改变时，第二个谐振频率f2也会发生改变，也即第二个谐振频率f2为其他值。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第一辐射体421与第二辐射体422可以在该频段内产生对流模式。此时，天线40的工作频段可以在对流模式的谐振频率的周围，从而在第一辐射体421与第二辐射体422辐射信号时，第一辐射体421与第二辐射体422辐射的信号对用户的影响较小。
此外，因为第一辐射体421与第二辐射体422在0至6GHz内可以产生数量大于一个的对流模式，所以在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。因此，天线的工作频段的范围更广。
可以理解的是，第一辐射体421的结构并不限于附图25c所示意的结构。第一辐射体421的结构还可以是第五种实现方式的第一辐射体421的结构。具体的，这里不再赘述。此外，在其他实现方式中，辐射体42也可以包括有第三辐射体423。第三辐射体423设置方式可参考第六种实现方式，具体这里不再赘述。此外，在其他实现方式中，第一辐射体 421也可以具有馈电点B，未具有接地点A。此时，第一辐射体421的设置方式可参考第七种实现方式，具体这里不再赘述。
在其他实现方式中，如图27a所示，图27a是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一分叉枝节4223及第二分叉枝节4224均呈弧型。此时，当第一分叉枝节4223的首端42231及第二分叉枝节4224的首端42241彼此连接时，第二辐射体422的形状也呈弧型。可以理解的是，当频率在0至6GHz的射频信号馈电至第一辐射体421与第二辐射体422时，第一辐射体421与第二辐射体422上的电流也可以产生两个对流模式。可以理解的是，第一个对流模式的形成原理与第一种实现方式的第一对流模式的形成原理相同。第二个对流模式的形成原理与第十一种实现方式的第二对流模式的形成原理相同。这里不再赘述。
在其他实现方式中，如图27b所示，图27b是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第二辐射体422在第一辐射体421的投影与第一辐射体421之间的最短距离L在0至3毫米的范围内。本实现方式的最短距离L为1毫米。在其他实现方式中，最短距离L可以为0毫米、0.2毫米、0.75毫米或者1.3毫米。此时，当频率在0至6GHz的射频信号馈电至第一辐射体421与第二辐射体422时，第一辐射体421与第二辐射体422上的电流也可以产生两个对流模式。可以理解的是，第一个对流模式的形成原理与第一种实现方式的第一对流模式的形成原理相同。第二个对流模式的形成原理与第十一种实现方式的第二对流模式的形成原理相同。这里不再赘述。
此外，当最短距离L为其他值时，第二个谐振频率f2也会发生改变，也即第二个谐振频率f2可以为其他值。
第十二种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：如图28及图29所示，图28是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。图29是图28所示的辐射体42在另一种角度下的结构示意图。第一辐射体421与第二辐射体422相耦合，也即射频信号可以经第一辐射体421耦合馈电至第二辐射体422。第一辐射体421包括第一端面1及远离第一端面1设置的第二端面2。第二辐射体422包括第三端面3及远离第三端面3设置的第四端面4。第一端面1位于第三端面3与第四端面4之间。第二端面2位于第一端面1与第四端面4之间。
此外，第二辐射体422在所述第一辐射体421的投影为第一投影。所述第一投影与所述第一辐射体421部分重合。在其他实施方式中，第一投影与所述第一辐射体421全部重合，也即第一辐射体421位于第一投影内。
此外，第一端面1与第三端面3的中心距离为第一值d1。第二端面2与第四端面4的中心距离为第二值d2。第一值d1与第二值d2的比值在0.5至2的范围内。本实现方式的第一值d1与第二值d2的比值为1。在其他实现方式中，第一值d1与第二值d2的比值也可以为0.8、1.22、1.5或者2。
如图30a所示，图30a是图28所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在该频段内将产生一个谐振模式，也即第一辐射体421与第二辐射体422在该频段内可以产生一个谐振频率。 附图30a示意了第一辐射体421与第二辐射体422产生的谐振频率为f1。
可以理解的是，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f1处，第二辐射体422可以产生自第三端面3及第四端面4向第二辐射体422的中部流动的电流。故而，通过第二辐射体422上电流分布可以确认，在频率为f1处，第二辐射体422所产生的谐振模式为对流模式。此外，频率f1为对流模式的谐振频率，也即附图30a中所示意的谐振频率f1。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第二辐射体422可以在该频段内产生对流模式。此时，天线40的工作频段可以为对流模式的谐振频率，从而在第二辐射体422辐射信号时，第一辐射体421与第二辐射体422辐射的信号对用户的影响较小。
可以理解的是，谐振频率为f1可以为0到6GHz中的任意值。例如，f1为5GHz。此外，当第一值d1与第二值d2的比值为其他值时，谐振频率为f1也会发生改变。
在其他实现方式中，辐射体42也可以包括有第三辐射体423。第三辐射体423设置方式可参考第六种实现方式，具体这里不再赘述。此外，在其他实现方式中，第一辐射体421也可以具有馈电点B，未具有接地点A。此时，第一辐射体421的设置方式可参考第七种实现方式，具体这里不再赘述。
在其他实现方式中，如图30b所示，图30b是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第二辐射体422在所述第一辐射体421的投影与第一馈电枝节4211的最短距离在0至3毫米的范围内。本实现方式的最短距离L为1毫米。在其他实现方式中，最短距离L可以为0毫米、0.2毫米、0.75毫米或者1.3毫米。此时，当频率在0至6GHz的射频信号馈电至第一辐射体421与第二辐射体422时，第一辐射体421与第二辐射体422上的电流也可以产生一个对流模式。可以理解的是，该对流模式的形成原理与第十二种实现方式的对流模式的形成原理相同。这里不再赘述。
在本实施方式中，第一辐射体421与第二辐射体422产生的谐振频率f1可以为0到6GHz中的任意值。例如，f1可以为4GHz。此外，谐振频率f1的具体大小与最短距离L以及第二辐射体422的长度相关。
第十三种实现方式，与第一种实现方式大部分相同的技术内容不再赘述：请参阅图31，图31是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一辐射体421包括第一端面1及远离第一端面1设置的第二端面2。第二辐射体422包括第三端面3及远离第三端面3设置的第四端面4。第三端面3位于第一端面1与第二端面2之间。第四端面4位于第一端面1背离第三端面3的一侧。
第二辐射体422在第一辐射体421的投影与第一辐射体421部分重合。
第一端面1与第二端面2的中心距离为第一值d1。第三端面3与第四端面4的中心距离为第二值d2。第一值d1与第二值d2的比值在0.5至2的范围内。换言之，辐射体42为准对称或者对称结构。本实现方式的第一值d1与第二值d2的比值为1。在其他实现方式中，第一值d1与第二值d2的比值也可以为0.8、1.22、1.5或者2。
请参阅图32及图33a，图32是图31所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。图33a是图31所示的辐射体42在频率为f1上电流的流向示意图。当射 频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在该频段内将产生一个谐振模式，也即第一辐射体421与第二辐射体422在该频段内可以产生一个谐振频率。附图32示意了第一辐射体421与第二辐射体422产生的谐振频率为f1。
可以理解的是，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。此时，在频率为f1处，第一辐射体421可以产生自第二端面2向第一端面1的方向流动的电流，第二辐射体422可以产生自第四端面4向第三端面3的方向流动的电流。故而，通过第一辐射体421与第二辐射体422上电流分布可以确认，在频率为f1处，第一辐射体421与第二辐射体422所产生的谐振模式为对流模式。此外，频率f1为对流模式的谐振频率，也即附图32中所示意的谐振频率f1。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第二辐射体422可以在该频段内产生对流模式。此时，天线40的工作频段可以为对流模式的谐振频率，从而在第二辐射体422辐射信号时，第一辐射体421与第二辐射体422辐射的信号对用户影响较小。
可以理解的是，谐振频率为f1可以为0到6GHz中的任意值。例如，f1为5GHz。此外，当第一值d1与第二值d2的比值为其他值时，谐振频率为f1也会发生改变。
在其他实现方式中，辐射体42也可以包括有第三辐射体423。第三辐射体423设置方式可参考第六种实现方式，具体这里不再赘述。此外，在其他实现方式中，第一辐射体421也可以具有馈电点B，未具有接地点A。此时，第一辐射体421的设置方式可参考第七种实现方式，具体这里不再赘述。
在其他实现方式中，如图33b所示，图33b是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第二辐射体422在第一辐射体421的投影与第一辐射体421之间的最短距离在0至3毫米的范围内。本实现方式的最短距离L为1毫米。在其他实现方式中，最短距离L可以为0毫米、0.2毫米、0.75毫米或者1.3毫米。此时，当频率在0至6GHz的射频信号馈电至第一辐射体421与第二辐射体422时，第一辐射体421与第二辐射体422上的电流也可以产生一个对流模式。可以理解的是，该对流模式的形成原理与第十三种实现方式的对流模式的形成原理相同。这里不再赘述。
此外，当最短距离L为其他值时，该谐振频率也会发生改变，也即谐振频率可以为其他值，例如，当最短距离L为1.2毫米时，该谐振频率为4.4GHz。
上文具体介绍了第一种实施例，辐射体42的第一辐射体421形成在支架50朝向后盖11的表面，也即第一表面55。第二辐射体422形成在后盖11朝向收容空间13的表面，也即第二表面115。此时，通过第一辐射体421与第二辐射体422向电子设备100的外部辐射信号。下文将结合相关附图具体描述一下其他几种实施例，也即第一辐射体421与第二辐射体422的几种设置方式。
第二种实施例，与第一种实施例相同的技术内容不再赘述：如图34所示，图34是图1所示的电子设备100在M-M线处的再一种实现方式的剖面示意图。后盖11为绝缘材料。第一辐射体421固定于后盖11朝向收容空间13的表面。一种实现方式中，通过LDS在后盖11朝向收容空间13的表面形成第一辐射体421。当然，其他实现方式也可以通过在后盖 11朝向收容空间13的表面粘贴柔性电路板，从而在柔性电路板上形成第一辐射体421。此外，附图34示意了支架50，在其他实现方式中，电子设备100也可以未设置支架50。
一种实现方式中，天线40还包括第一弹片43及第二弹片44。第一弹片43固定于电路板30。第一弹片43用于将射频收发电路41发射的射频信号馈入第一辐射体421。第二弹片44用于使第一辐射体421接地。在其他实现方式中，射频收发电路41发射的射频信号也可以通过连接器馈入第一辐射体421。此外，第二弹片44也可以通过连接器接地。此外，其他实现方式中，第一辐射体421也可以不通过第二弹片44接地，也即第一辐射体421未接地。
此外，第二辐射体422固定于后盖11背离收容空间13的表面，也即第二辐射体422形成于后盖11的外表面。一种实现方式中，通过LDS在后盖11背离收容空间13的表面形成第二辐射体422。当然，其他实现方式也可以通过在后盖11背离收容空间13的表面粘贴柔性电路板，从而在柔性电路板上形成第二辐射体422。
此时，通过将第一辐射体421固定于后盖11朝向收容空间13的表面，第二辐射体422固定于后盖11背离收容空间13的表面，从而使得第二辐射体422与第一辐射体421间隔设置，进而当射频收发电路41发射射频信号时，射频信号通过第一辐射体421馈电至第二辐射体422。此时，第一辐射体421与第二辐射体422根据射频信号分别向电子设备100的外部辐射信号。
第三种实施例，与第一种实施例相同的技术内容不再赘述：如图35所示，图35是图1所示的电子设备在M-M线处的再一种实现方式的剖面示意图。支架50的材质为绝缘材料。第一辐射体421形成于支架50朝向电路板30的表面。一种实现方式中，利用LDS在支架50朝向电路板30的表面上形成第一辐射体421。当然，其他实现方式也可以通过在支架50朝向电路板30的表面上粘接柔性电路板，从而在柔性电路板上形成第一辐射体421。
一种实现方式中，天线还包括第一弹片43及第二弹片44。第一弹片43固定于电路板30。第一弹片43用于将射频收发电路41发射的射频信号馈入第一辐射体421。第二弹片44用于使第一辐射体421接地。在其他实现方式中，射频收发电路41发射的射频信号也可以通过连接器馈入第一辐射体421。此外，第二弹片44也可以通过连接器接地。此外，其他实现方式中，第一辐射体421也可以不通过第二弹片44接地，也即第一辐射体421未接地。
此外，第二辐射体422形成于支架50朝向后盖11的表面。一种实现方式中，利用LDS在支架50朝向后盖11的表面上形成第二辐射体422。当然，其他实现方式也可以通过在支架50朝向后盖11的表面上粘接柔性电路板，从而在柔性电路板上形成第二辐射体422。
此时，通过将第一辐射体421形成于支架50朝向电路板30的表面，第二辐射体422形成于支架50朝向后盖11的表面，从而使得第二辐射体422与第一辐射体421间隔设置，进而当射频收发电路41发射射频信号时，射频信号通过第一辐射体421馈电至第二辐射体422。此时，第一辐射体421与第二辐射体422根据射频信号分别向电子设备100的外部辐射信号。
在其他实施例中，第二辐射体422也可以形成于后盖11朝向收容空间13的表面，或者第二辐射体422也可以形成于后盖11背离收容空间13的表面。
第四种实施例，与第一种实施例相同的技术内容不再赘述：如图36及图37所示，图36是本申请实施例提供的电子设备100的另一种实现方式的结构示意图。图37是图36所示的电子设备100在N-N线的剖面示意图。边框12的材质可以为金属材料。边框12包括相对设置的第一长边框121以及第二长边框122与相对设置的第一短边框123以及第二短边框124。第一短边框123与第二短边框124连接在第一长边框121与第二长边框122之间。一种实现方式中，在边框12的第一长边框121上分别设置有第一天线缝125及第二天线缝126。此时，第一天线缝125和第二天线缝126将部分第一长边框121隔离出一段金属部分。该金属部分形成辐射体42的第一辐射体421。
此外，后盖11的材质可以为绝缘材料。在支架50朝向第一长边框121的表面上形成第二辐射体422。一种实现方式中，利用LDS在支架50朝向第一长边框121的表面上形成第二辐射体422。当然，其他实现方式也可以通过在支架50朝向第一长边框121的表面上粘接柔性电路板，从而在柔性电路板上形成第二辐射体422。
此时，通过将第一辐射体421形成于第一长边框121，第二辐射体422形成于支架50朝向第一长边框121的表面，从而使得第二辐射体422与第一辐射体421间隔设置，进而当射频收发电路41发射射频信号时，射频信号通过第一辐射体421馈电至第二辐射体422。此时，第一辐射体421与第二辐射体422根据射频信号分别向电子设备100的外部辐射信号。
在其他实现方式中，通过在第一天线缝125和第二天线缝126中设置绝缘材料，绝缘材料一方面可以将隔离出的金属部分连接至第一长边框121中未隔离出的金属部分，从而保证第一长边框121的整体性，进而避免电子设备100的外观面因出现凹坑而影响外观，另一方面可以保证隔离出的金属部分与未隔离出的金属部分保持绝缘设置。
在其他实现方式中，第一辐射体421也可以通过下述方式实现。具体的，通过与上述实现方式相同的方式在边框12的第一短边框123、第二短边框124或者第二长边框122隔离出一段金属部分，以形成辐射体42的第一辐射体421。
第五种实施例，与第一种实施例的第一种实现方式相同的技术内容不再赘述：如图38及图39所示，图38是本申请实施例提供的电子设备100的再一种实现方式的部分结构示意图。图39是图38所示的辐射体42的结构示意图。第一辐射体421与第二辐射体422同层设置，且第一辐射体421连接于第二辐射体422。
一种实现方式中，当支架50为框状结构时，支架50罩设在电路板30上，支架50与电路板30围设有空间S。支架50与电路板30的结构具体可参考第一种实现方式的附图3a。第一辐射体421与第二辐射体422形成在支架50的第一表面55。此外，第一辐射体421与第二辐射体422也可以形成在支架50朝向空间S的表面。其他实施例中，第一辐射体421与第二辐射体422也可以形成在后盖11朝向收容空间13的表面，或者第一辐射体421与第二辐射体422也可以同时形成在后盖11背离收容空间13的表面。
此外，第一辐射体421包括第一馈电枝节4211。第一馈电枝节4211呈条型状。
此外，所述第一端面1的中心与所述接地点A的距离为第五值d5。所述第二端面2的中心与所述接地点A的距离为第六值d6。第五值d5与第六值d6的比值在0.3至3的范围内。换言之，第一馈电枝节4211为准对称或者对称结构。
第二辐射体422包括第一枝节4221、第一分叉枝节4223及第二分叉枝节4224。第一分叉枝节4223的首端42231及第二分叉枝节4224的首端42241连接第一枝节4221。第一分叉枝节4223的末端42232与所述第二分叉枝节4224的末端42242位于所述第一枝节4221的两侧。此时，第二辐射体422呈“Y”型，或者大致呈“T”型。
可以理解的是，第一枝节4221的两侧可以理解为第一枝节4221本身的两侧，也可以理解为在第一枝节4221的延伸方向上的两侧。
第一分叉枝节4223的末端端面3与所述接地点A的中心距离为第一值d1，第二分叉枝节4224的末端端面4与所述接地点A的中心距离为第二值d2。所述第一值d1与所述第二值d2的比值在0.3至3的范围内。换言之，第二辐射体422为准对称或者对称结构。请参阅图40，图40是图39所示的辐射体42在频段为0至6GHz的反射系数与频率的关系图。当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一辐射体421与第二辐射体422。第一辐射体421与第二辐射体422在0至6GHz可以产生两个谐振频率。附图40示意了第一辐射体421与第二辐射体422产生的两个谐振频率分别为f1及f2。
以下结合图41和图42来具体描述一下谐振频率f1及f2均为对流模式的谐振频率。图41是图39所示的辐射体在频率为f1的射频信号下的电流的流向示意图。图42是图39所示的辐射体在频率为f2的射频信号下的电流的流向示意图。
请参阅图41，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一馈电枝节4211与第二辐射体422。此时，在频率为f1处，第一馈电枝节4211可以产生自第一端面1与第二端面2同时向接地点A的方向流动的第一电流。
此外，因为第二辐射体422连接于第一馈电枝节4211，所以射频信号能够经第一馈电枝节4211耦合馈电至第二辐射体422。此时，第二辐射体422具有向第一分叉枝节4223的末端端面3与第二分叉枝节4224的末端端面4的方向流动的第二电流。
故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f1处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式。此外，频率f1为对流模式的谐振频率，也即附图40中所示意的第一个谐振频率f1。
此外，通过测量第一电流与第二电流的强度可知，第一电流的强度大于第二电流的强度，也即第一馈电枝节4211上的电流强度大于第二辐射体422上电流的强度。故而，谐振频率f1主要为第一馈电枝节4211所产生的谐振频率。
请参阅图42，当射频收发电路41发射频段在0至6GHz的射频信号时，该射频信号传输至第一馈电枝节4211与第二辐射体422。此时，在频率为f2处，第一馈电枝节4211可以产生自第一端面1与第二端面2同时向接地点A的方向流动的第一电流。
此外，因为第二辐射体422连接于第一馈电枝节4211内，所以射频信号经第一馈电枝节4211耦合馈电至第二辐射体422时，第二辐射体422具有向第一分叉枝节4223的末端端面3与第二分叉枝节4224的末端端面4的方向流动的第二电流。
故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f2处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式。此外，频率f2为对流模式的谐振频率，也即附图40中所示意的第二个谐振频率f2。
此外，通过测量第一电流与第二电流的强度可知，第一电流的强度小于第二电流的强 度，也即第一馈电枝节4211上的电流强度小于第二辐射体422上电流的强度。故而，谐振频率f2主要为第二辐射体422所产生的谐振频率。
在本实现方式中，当第一辐射体421与第二辐射体422接收频段在0至6GHz的射频信号时，第一辐射体421与第二辐射体422可以在该频段内产生两个对流模式的谐振频率。天线40的工作频段设置在对流模式的谐振频率的附近，这样在第一辐射体421与第二辐射体422辐射信号时，信号对用户影响较小。
此外，因为第一辐射体421与第二辐射体422在0至6GHz内可以产生数量大于一个的对流模式，所以在0至6GHz频段内，低吸收比率的谐振模式的覆盖频段较广。换言之，对流模式较多，设置在谐振频率附近的工作频段也较广。
通过上文并结合附图41及图42可知，附图40所示意的两个谐振频率均为对流模式的谐振频率。换言之，本实现方式的第一辐射体421与第二辐射体422能够产生两个对流模式。
在本实施方式中，第一辐射体421与第二辐射体422产生的两个谐振频率f1及f2可以为任意值。例如，f1可以为4GHz。f2可以为4.6GHz。可以理解的是，两个谐振频率f1及f2的大小与第一馈电枝节4211的长度、第二辐射体422的长度、馈电点B的位置或者第一辐射体421及第二辐射体422的所在外部环境(例如，第一辐射体421与第二辐射体422的固定位置)等因素是相关的。换言之，通过改变第一馈电枝节4211的长度、第二辐射体422的长度、馈电点B的位置或者第一辐射体421及第二辐射体422的所在外部环境等因素，可以有效地改变f1及f2的值。
例如，在相同条件下，将第一馈电枝节4211的长度从30毫米改变为28毫米时，第一谐振频率f1可以从4GHz改变至4.1GHz。
第六种实施例，与第五种实施例的第一种实现方式相同的技术内容不再赘述：如图43所示，图43是本申请实施例提供的辐射体42的再一种实现方式的结构示意图。第一辐射体421具有馈电点B，未具有接地点A。
本实现方式的第五值d5和第六值d6与第五种实施例的第五值d5和第六值d6的定义不同。具体的，所述第一端面1的中心与所述馈电点B的距离为第五值d5。所述第二端面2的中心与所述馈电点B的距离为第六值d6。第五值d5与第六值d6的比值在0.3至3的范围内。换言之，第一馈电枝节4211为准对称或者对称结构。本实现方式的第五值d5与第六值d6的比值为1。在其他实现方式中，第五值d5与第六值d6的比值也可以为0.3、0.8、1.2、2.3或者2.9。
此外，第一分叉枝节4223的末端端面3与馈电点B的中心距离为第一值d1。第二分叉枝节4224的末端端面4与馈电点B的中心距离为第二值d2。所述第一值d1与所述第二值d2的比值在0.3至3的范围内。换言之，第二辐射体422为准对称或者对称结构。
可以理解的是，当频率在0至6GHz的射频信号馈电至第一馈电枝节4211及第二辐射体422时，第一馈电枝节4211及第二辐射体422在该频段内将产生两个谐振模式，也即第一馈电枝节4211与第二辐射体422在该频段内可以产生两个谐振频率，两个谐振频率分别为f1及f2。
此时，在频率为f1处，第一馈电枝节4211具有自第一端面1向馈电点B流动的第一 电流，以及自第二端面2向馈电点B的方向流动的第二电流。此外，第二辐射体422上的电流分布与第五种实施例的第二辐射体422的电流分布相同。故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f1处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式。此外，频率f1为对流模式的谐振频率。
此外，在频率为f2处，第一馈电枝节4211具有自第一端面1向馈电点B流动的第一电流，以及自第二端面2向馈电点B的方向流动的第二电流。此外，第二辐射体422上的电流分布与第五种实施例的第二辐射体422的电流分布相同。故而，通过第一馈电枝节4211与第二辐射体422上电流分布可以确认，在频率为f2处，第一馈电枝节4211与第二辐射体422所产生的谐振模式为对流模式，此外，频率f2为对流模式的谐振频率。
在本实现方式中，当第一馈电枝节4211与第二辐射体422接收射频信号时，第一馈电枝节4211与第二辐射体422可以在该频段内产生对流模式的谐振频率。天线的工作频段设置在对流模式的谐振频率的附近，这样在第一馈电枝节4211与第二辐射体422辐射信号时，信号对用户影响较小。
在本申请技术方案中，根据上文各个实施例以及各个实现方式可以发现，本申请技术方案通过设置第一辐射体421以及第二辐射体422的结构，从而利用第一辐射体42与第二辐射体422来产生具有低吸收比率的对流模式，进而当第一辐射体421与第二辐射体422辐射信号时，信号对用户的影响较小。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (31)

  1. 一种电子设备，其特征在于，包括第一辐射体及第二辐射体，所述第一辐射体与所述第二辐射体相耦合；
    所述第二辐射体包括第一枝节、第二枝节及第三枝节，所述第二枝节的一端连接于所述第一枝节的首端与末端之间，所述第一枝节的首端与末端分别位于所述第二枝节的两侧，所述第二枝节的另一端连接于所述第三枝节的首端与末端之间，所述第三枝节的首端与所述第三枝节的末端位于所述第二枝节的两侧；
    所述第一枝节具有背离所述第二枝节的基准面，所述基准面在所述第一辐射体的投影为第一投影，所述第一投影与所述第一辐射体部分重合或者全部重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内；
    所述第三枝节的首端端面与所述基准面的中心距离为第一值，所述第三枝节的末端端面与所述基准面的中心距离为第二值，所述第一值与所述第二值的比值在0.5至2的范围内。
  2. 根据权利要求1所述的电子设备，其特征在于，所述第三枝节包括第一分叉枝节及第二分叉枝节，所述第一分叉枝节背离所述第二分叉枝节的端部为所述第三枝节的首端，所述第二分叉枝节背离所述第一分叉枝节的端部为所述第三枝节的末端；
    所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。
  3. 根据权利要求1或2所述的电子设备，其特征在于，所述第二辐射体还包括第四枝节、第三分叉枝节及第四分叉枝节，所述第四枝节、所述第三分叉枝节及所述第四分叉枝节均位于所述第一枝节背离所述第二枝节的一侧，所述第四枝节的一端连接于所述第三分叉枝节的首端与所述第四分叉枝节的首端，另一端连接于所述基准面，所述第三分叉枝节的末端与所述第四分叉枝节的末端位于所述第四枝节的两侧；
    所述第三分叉枝节的末端端面与所述基准面的中心距离为第三值，所述第四分叉枝节的末端端面与所述基准面的中心距离为第四值，所述第三值与所述第四值的比值在0.5至2的范围内。
  4. 根据权利要求1或2所述的电子设备，其特征在于，所述第二辐射体还包括第四枝节、第三分叉枝节及第四分叉枝节，所述第四枝节、所述第三分叉枝节及所述第四分叉枝节均位于所述第一分叉枝节及所述第二分叉枝节背离所述第二枝节的一侧，所述第四枝节的一端连接于所述第一分叉枝节的首端与所述第二分叉枝节的首端，另一端连接于所述第三分叉枝节的首端与所述第四分叉枝节的首端，所述第三分叉枝节的末端与所述第四分叉枝节的末端位于所述第四枝节的两侧；
    所述第三分叉枝节的末端端面与所述基准面的中心距离为第三值，所述第四分叉枝节的末端端面与所述基准面的中心距离为第四值，所述第三值与所述第四值的比值在0.5至2 的范围内。
  5. 根据权利要求1至4中任一项所述的电子设备，其特征在于，所述第一辐射体包括第一馈电枝节，所述第一馈电枝节具有接地点，所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述接地点距离为第五值，所述第二端面的中心与所述接地点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。
  6. 根据权利要求5所述的电子设备，其特征在于，所述第一辐射体还包括连接枝节及第二馈电枝节，所述第二馈电枝节包括第一末端及远离所述第一末端设置的第二末端，所述连接枝节的一端连接在所述第一馈电枝节的第一端面与所述第二端面之间，另一端连接在所述第一末端与所述第二末端之间，所述第一末端与所述第二末端位于所述连接枝节的两侧；
    所述第一末端的端面的中心与所述接地点的距离为第七值，所述第二末端的端面的中心与所述接地点的距离为第八值，所述第七值与所述第八值的比值在0.3至3的范围内。
  7. 根据权利要求1至4中任一项的电子设备，其特征在于，所述第一辐射体包括第一馈电枝节，所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述第一馈电枝节的馈电点的距离为第五值，所述第二端面的中心与所述馈电点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。
  8. 根据权利要求1至4中任一项所述的电子设备，其特征在于，所述第一辐射体为倒F天线、复合左右手天线或者环形天线。
  9. 根据权利要求1至8中任一项所述的电子设备，其特征在于，所述电子设备还包括第三辐射体，所述第三辐射体与所述第一辐射体相耦合；
    所述第三辐射体包括第五分叉枝节及第六分叉枝节，所述第五分叉枝节的首端连接于所述第六分叉枝节的首端；
    所述第三辐射体在所述第一辐射体的投影为第二投影，所述第二投影部分或者全部位于所述第一辐射体内，或者所述第二投影与所述第一辐射体之间的最短距离在0至3毫米的范围内；
    所述第五分叉枝节的首端端面与末端端面的中心距离为第九值，所述第六分叉枝节的首端端面与末端端面的中心距离为第十值，所述第九值与所述第十值的比值在0.5至2的范围内。
  10. 根据权利要求1至9中任一项所述的电子设备，其特征在于，所述电子设备还包括壳体，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述壳体包括相背设置的第一表面及第二表面，所述第一表面朝向所述收容空间，所述第一辐射体固定 于所述第一表面，所述第二辐射体固定于所述第二表面。
  11. 根据权利要求1至9中任一项所述的电子设备，其特征在于，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板位于所述收容空间，所述支架固定于所述电路板，所述第一辐射体固定在所述支架朝向所述收容空间的表面，所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者所述第二辐射体固定于所述壳体背离所述收容空间的表面。
  12. 根据权利要求1至9中任一项所述的电子设备，其特征在于，所述电子设备还包括壳体、屏幕、电路板及支架，所述屏幕安装于所述壳体，所述屏幕与所述壳体围设有收容空间，所述电路板位于所述收容空间，所述支架固定于所述电路板，并与所述电路板围设有一空间，所述第一辐射体固定于所述支架朝向所述空间的表面；
    所述第二辐射体固定于所述支架背离所述空间的表面，或者
    所述第二辐射体固定于所述壳体朝向所述收容空间的表面，或者
    所述第二辐射体固定于所述壳体背离所述收容空间的表面。
  13. 一种电子设备，其特征在于，包括第一辐射体及第二辐射体，所述第一辐射体与所述第二辐射体相耦合；
    所述第二辐射体包括第一枝节、第一分叉枝节及第二分叉枝节，所述第一枝节的一端连接于所述第一分叉枝节首端与所述第二分叉枝节的首端，所述第一分叉枝节的末端与所述第二分叉枝节的末端位于所述第一枝节的两侧；
    所述第一枝节具有背离所述第一分叉枝节及所述第二分叉枝节的基准面，所述基准面在所述第一辐射体的投影为第一投影，所述第一投影与所述第一辐射体部分或者全部重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内；
    所述第一分叉枝节的末端端面与所述基准面的中心距离为第一值，所述第二分叉枝节的末端端面与所述基准面的中心距离为第二值，所述第一值与所述第二值的比值在0.5至2的范围内。
  14. 根据权利要求13所述的电子设备，其特征在于，所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。
  15. 根据权利要求13或14所述的电子设备，其特征在于，所述第一辐射体包括第一馈电枝节，所述第一馈电枝节具有接地点，所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述接地点距离为第五值，所述第二端面的中心与所述接地点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。
  16. 根据权利要求15所述的电子设备，其特征在于，所述第一辐射体还包括连接枝节及第二馈电枝节，所述第二馈电枝节包括第一末端及远离所述第一末端设置的第二末端，所述连接枝节的一端连接在所述第一馈电枝节的第一端面与所述第二端面之间，另一端连接在所述第一末端与所述第二末端之间，所述第一末端与所述第二末端位于所述连接枝节的两侧；
    所述第一末端的端面的中心与所述接地点的距离为第七值，所述第二末端的端面的中心与所述接地点的距离为第八值，所述第七值与所述第八值的比值在0.3至3的范围内。
  17. 根据权利要求13或14所述的电子设备，其特征在于，所述第一辐射体包括第一馈电枝节，所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述第一馈电枝节的馈电点的距离为第五值，所述第二端面的中心与所述馈电点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。
  18. 一种电子设备，其特征在于，包括第一辐射体及第二辐射体，所述第一辐射体与所述第二辐射体相耦合；
    所述第二辐射体包括第一分叉枝节及第二分叉枝节，所述第一分叉枝节的首端及所述第二分叉枝节的首端彼此连接；
    所述第二辐射体在所述第一辐射体的投影为第一投影，所述第一投影与所述第一辐射体部分或者全部重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内；
    所述第一分叉枝节的首端端面与末端端面的中心距离为第一值，所述第二分叉枝节的首端端面与末端端面的中心距离为第二值，所述第一值与所述第二值的比值在0.2至2的范围内。
  19. 根据权利要求18所述的电子设备，其特征在于，所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a＜180°。
  20. 根据权利要求18或19所述的电子设备，其特征在于，所述第一辐射体包括第一馈电枝节，所述第一馈电枝节具有接地点，所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述接地点距离为第五值，所述第二端面的中心与所述接地点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。
  21. 根据权利要求20所述的电子设备，其特征在于，所述第一辐射体还包括连接枝节及第二馈电枝节，所述第二馈电枝节包括第一末端及远离所述第一末端设置的第二末端， 所述连接枝节的一端连接在所述第一馈电枝节的第一端面与所述第二端面之间，另一端连接在所述第一末端与所述第二末端之间，所述第一末端与所述第二末端位于所述连接枝节的两侧；
    所述第一末端的端面的中心与所述接地点的距离为第七值，所述第二末端的端面的中心与所述接地点的距离为第八值，所述第七值与所述第八值的比值在0.3至3的范围内。
  22. 根据权利要求18或19所述的电子设备，其特征在于，所述第一辐射体包括第一馈电枝节，所述第一馈电枝节包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述第一馈电枝节的馈电点的距离为第五值，所述第二端面的中心与所述馈电点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内。
  23. 一种电子设备，其特征在于，包括第一辐射体及第二辐射体，所述第一辐射体与所述第二辐射体相耦合；
    所述第一辐射体包括第一端面及远离所述第一端面设置的第二端面，所述第二辐射体包括第三端面及远离所述第三端面设置的第四端面，所述第一端面位于所述第三端面与所述第四端面之间，所述第二端面位于所述第一端面与所述第四端面之间；
    所述第二辐射体在所述第一辐射体的投影为第一投影，所述第一投影与所述第一辐射体部分或者全部重合，或者所述第一投影与所述第一辐射体之间的距离在0至3毫米的范围内；
    所述第一端面与所述第三端面的中心距离为第一值，所述第二端面与所述第四端面的中心距离为第二值，所述第一值与所述第二值的比值在0.5至2的范围内。
  24. 根据权利要求23所述的电子设备，其特征在于，所述第二辐射体为条型状。
  25. 一种电子设备，其特征在于，包括第一辐射体及第二辐射体，所述第一辐射体与所述第二辐射体相耦合；
    所述第一辐射体包括第一端面及远离第一端面设置的第二端面，所述第二辐射体包括第三端面及远离所述第三端面设置的第四端面，所述第三端面位于所述第一端面与所述第二端面之间，所述第四端面位于所述第一端面背离所述第三端面的一侧；
    所述第二辐射体在所述第一辐射体的投影为第一投影，所述第一投影与所述第一辐射体部分重合，或者所述第一投影与所述第一辐射体之间的最短距离在0至3毫米的范围内；
    所述第一端面与所述第二端面的中心距离为第一值，所述第三端面与所述第四端面的中心距离为第二值，所述第一值与所述第二值的比值在0.5至2的范围内。
  26. 根据权利要求25所述的电子设备，其特征在于，所述第一端面与所述第三端面的中心距离为第三值，所述第三值与所述第二值的比值在0至0.35的范围内。
  27. 根据权利要求25或26所述的电子设备，其特征在于，所述第一辐射体与所述第 二辐射体均为条型状。
  28. 一种电子设备，其特征在于，包括第一辐射体、第二辐射体及射频收发电路，所述第二辐射体连接于所述第一辐射体，所述射频收发电路电连接于所述第一辐射体；
    所述第一辐射体具有连接所述射频收发电路的馈电点，所述第一辐射体包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述馈电点的距离为第五值，所述第二端面的中心与所述馈电点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内；
    所述第二辐射体包括第一枝节、第一分叉枝节及第二分叉枝节，所述第一枝节的一端连接于所述第一分叉枝节首端与所述第二分叉枝节的首端，另一端连接于所述第一辐射体，所述第一分叉枝节的末端与所述第二分叉枝节的末端位于所述第一枝节的两侧；
    所述第一分叉枝节的末端端面与所述馈电点的中心距离为第一值，所述第二分叉枝节的末端端面与所述馈电点的中心距离为第二值，所述第一值与所述第二值的比值在0.3至3的范围内。
  29. 根据权利要求28所述的电子设备，其特征在于，
    所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。
  30. 一种电子设备，其特征在于，包括第一辐射体、第二辐射体及射频收发电路，所述第二辐射体连接于所述第一辐射体，所述射频收发电路电连接于所述第一辐射体；
    所述第一辐射体具有接地点，所述第一辐射体包括第一端面及远离所述第一端面设置的第二端面，所述第一端面的中心与所述接地点的距离为第五值，所述第二端面的中心与所述接地点的距离为第六值，所述第五值与所述第六值的比值在0.3至3的范围内；
    所述第二辐射体包括第一枝节、第一分叉枝节及第二分叉枝节，所述第一枝节的一端连接于所述第一分叉枝节首端与所述第二分叉枝节的首端，另一端连接于所述第一辐射体，所述第一分叉枝节的末端与所述第二分叉枝节的末端位于所述第一枝节的两侧；
    所述第一分叉枝节的末端端面与所述接地点的中心距离为第一值，所述第二分叉枝节的末端端面与所述接地点的中心距离为第二值，所述第一值与所述第二值的比值在0.3至3的范围内。
  31. 根据权利要求30所述的电子设备，其特征在于，
    所述第一分叉枝节与所述第二分叉枝节均呈条型状，所述第一分叉枝节与所述第二分叉枝节的夹角为a，a满足：0°＜a≤180°。
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