WO2021083219A1 - Unité d'antenne et dispositif électronique - Google Patents

Unité d'antenne et dispositif électronique Download PDF

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Publication number
WO2021083219A1
WO2021083219A1 PCT/CN2020/124418 CN2020124418W WO2021083219A1 WO 2021083219 A1 WO2021083219 A1 WO 2021083219A1 CN 2020124418 W CN2020124418 W CN 2020124418W WO 2021083219 A1 WO2021083219 A1 WO 2021083219A1
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WO
WIPO (PCT)
Prior art keywords
insulator
antenna unit
isolator
arm
present
Prior art date
Application number
PCT/CN2020/124418
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English (en)
Chinese (zh)
Inventor
马荣杰
邾志民
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维沃移动通信有限公司
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Filing date
Publication date
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Publication of WO2021083219A1 publication Critical patent/WO2021083219A1/fr

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    • 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
    • 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
    • H01Q1/24—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
    • H01Q1/36—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
    • H01Q1/48—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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • 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
    • 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
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points

Definitions

  • the embodiments of the present invention relate to the field of communication technology, and in particular to an antenna unit and electronic equipment.
  • millimeter-wave antennas are gradually being used in various electronic devices to meet the increasing use demands of users.
  • millimeter wave antennas in electronic devices are mainly implemented through antenna in package (AiP) technology.
  • AiP technology can be used to integrate the array antenna 11, the radio frequency integrated circuit (RFIC) 12, and the power management integrated circuit (PMIC) 13 with a working wavelength of millimeter wave.
  • the connector 14 are packaged into a module 10, and the module 10 may be called a millimeter wave antenna module.
  • the antenna in the above-mentioned array antenna may be a patch antenna, a Yagi-Uda antenna, or a dipole antenna.
  • the antennas in the above-mentioned array antennas are usually narrowband antennas (such as the patch antennas listed above), the coverage frequency band of each antenna is limited, but the millimeter wave frequency bands planned in the 5G system are usually more, for example, 28GHz The main n257 (26.5GHz-29.5GHz) frequency band and the 39GHz main n260 (37.0GHz-40.0GHz) frequency band, etc., so the traditional millimeter wave antenna module may not be able to cover the mainstream millimeter wave frequency band planned in the 5G system , Resulting in poor antenna performance of electronic equipment.
  • the embodiments of the present invention provide an antenna unit and an electronic device to solve the problem that the millimeter wave antenna of the existing electronic device covers less frequency bands, resulting in poor antenna performance of the electronic device.
  • an embodiment of the present invention provides an antenna unit.
  • the antenna unit includes: a first insulator, M feeders and a first insulator arranged in the first insulator, and a ground at the bottom of the first insulator.
  • Body M feed arms, a second insulator, a target radiator carried by the second insulator, and a second insulator arranged in the first insulator and the second insulator; wherein the first insulator and the second insulator are both It is electrically connected to the grounding body, the second isolator is arranged around the M power feeding parts, the M power feeding parts are arranged around the first isolator and are insulated from the ground body, and each feeding part is electrically connected to a feeding arm.
  • the M feeding arms are located between the first insulator and the second insulator, and are arranged in a circle from the first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator, M Is an integer greater than 1.
  • an embodiment of the present invention provides an electronic device, which includes the antenna unit in the above-mentioned first aspect.
  • the antenna unit may include: a first insulator, M feeders and first insulators arranged in the first insulator, a grounding body arranged at the bottom of the first insulator, M feed arms, The second insulator, the target radiator carried by the second insulator, and the second insulator arranged in the first insulator and the second insulator; wherein the first insulator and the second insulator are both electrically connected to the ground, and the second insulator
  • the insulators are arranged around the M power feeders, the M power feeders are arranged around the first insulator and are insulated from the ground body, and each power feeder is electrically connected to the first end of a power feeder arm.
  • the two feeding arms are located between the first insulator and the second insulator, and are arranged around in the first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator, and M is an integer greater than 1. .
  • the first isolator is The body and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal backing cavity (the first isolating body and the grounding body are composed ) Is coupled to the target radiator.
  • the feeding arm when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate induced current, which can make the feeding arm, Both the metal back cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feed arm and the metal back cavity and the target radiator (for example, from the feed arm to the metal back cavity).
  • the frequency of the electromagnetic wave generated by the current on the feed arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit.
  • the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
  • FIG. 1 is a schematic structural diagram of a traditional millimeter wave package antenna provided by an embodiment of the present invention
  • FIG. 2 is one of the exploded views of the antenna unit provided by the embodiment of the present invention.
  • Fig. 3 is a reflection coefficient diagram of an antenna unit provided by an embodiment of the present invention.
  • FIG. 4 is a top view of an antenna unit provided by an embodiment of the present invention.
  • FIG. 5 is a diagram of transmission coefficients of an antenna unit provided by an embodiment of the present invention.
  • Fig. 6 is the second exploded view of the antenna unit provided by the embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of an antenna unit provided by an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention.
  • FIG. 9 is one of the radiation patterns of the antenna unit provided by the embodiment of the present invention.
  • FIG. 10 is the second radiation pattern diagram of the antenna unit provided by the embodiment of the present invention.
  • Fig. 11 is a left side view of an electronic device provided by an embodiment of the present invention.
  • 10-millimeter wave antenna module 11—array antenna with working wavelength of millimeter wave; 12—RFIC; 13—PMIC; 14—connector; 20—antenna unit; 201—first insulator; 202— Feeder; 203—first insulator; 204—grounding body; 205—feeding arm; 206—second insulator; 207—target radiator; 208—second insulator; 209—third insulator; L1—first Diagonal line; L2—second diagonal line; D1—diagonal line 1; D2—diagonal line 2; 3-electronic equipment; 30—shell; 31—first frame; 32—second frame; 33 —The third frame; 34—the fourth frame; 35—the floor; 36—the first antenna; 37—the first groove.
  • first and second in the specification and claims of the present invention are used to distinguish different objects, rather than to describe a specific order of objects.
  • first insulator and the second insulator are used to distinguish different insulators, rather than to describe a specific order of the insulators.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiment of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • multiple refers to two or more than two, for example, multiple antenna elements refers to two or more antenna elements, etc.
  • Coupling refers to the close coordination and mutual influence between the input and output of two or more circuit elements or electrical networks, and energy can be transmitted from one side to the other through the interaction.
  • the “coupling” in the embodiment of the present invention can be used to indicate that the components that are coupled (for example, the M feed arms and the first isolator and ground body in the embodiment, the M feed arms and the target radiator) are in the antenna unit. In the case of working, these components can be coupled; when the antenna unit is not working, these components are insulated from each other.
  • AC signal A signal that changes the direction of current.
  • Low temperature co-fired ceramic refers to a kind of low temperature sintered ceramic powder into a precise and dense green ceramic tape, and the use of laser drilling, micro-hole injection on the green ceramic tape Processes such as printing paste and precise conductor paste to produce the required circuit patterns, and embed multiple components (such as capacitors, resistors, couplers, etc.) in a multilayer ceramic substrate, and then stack them together and sinter at 900°C ,
  • MIMO Multiple-input multiple-output
  • transmitting end that is, the transmitting end and the receiving end
  • signals can be sent or received through multiple antennas at the transmitting end.
  • Relative permittivity A physical parameter used to characterize the dielectric properties or polarization properties of dielectric materials.
  • Floor refers to the part of electronic equipment that can be used as a virtual ground.
  • PCB printed circuit board
  • metal frame metal frame
  • display screen of electronic equipment in electronic equipment.
  • Embodiments of the present invention provide an antenna unit and electronic equipment.
  • the antenna unit may include: a first insulator, M feeders and a first insulator arranged in the first insulator, and a grounding body arranged at the bottom of the first insulator , M feed arms, a second insulator, a target radiator carried by the second insulator, and a second insulator arranged in the first insulator and the second insulator; wherein the first insulator and the second insulator are both connected to The grounding body is electrically connected, the second isolator is arranged around the M feeding parts, the M feeding parts are arranged around the first isolator and are insulated from the grounding body, and each feeding part is connected to the first part of a feeding arm.
  • the M feeding arms are located between the first insulator and the second insulator, and are arranged in a first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator , M is an integer greater than 1.
  • the first isolator is The body and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal backing cavity (the first isolating body and the grounding body are composed ) Is coupled to the target radiator.
  • the feeding arm when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate induced current, which can make the feeding arm, Both the metal back cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feed arm and the metal back cavity and the target radiator (for example, from the feed arm to the metal back cavity).
  • the frequency of the electromagnetic wave generated by the current on the feed arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit.
  • the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
  • the antenna unit provided in the embodiment of the present invention can be applied to electronic equipment, and can also be applied to other equipment that needs to use the antenna unit, and can be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention.
  • the antenna unit provided in the embodiment of the present invention will be exemplarily described below by taking the antenna unit applied to an electronic device as an example.
  • the antenna unit provided by the embodiment of the present invention will be exemplarily described below with reference to the various drawings.
  • the antenna unit 20 may include: a first insulator 201, M feeders 202 and a first isolator 203 arranged in the first insulator 201, a ground body 204 arranged at the bottom of the first insulator 201, M feeding arms 205, a second insulator 206, a target radiator 207 carried by the second insulator 206, and a second insulator 208 arranged in the first insulator 201 and the second insulator 206.
  • first isolator 203 and the second isolator 208 may be electrically connected to the ground body 204
  • the second isolator 208 may be arranged around the M power feeding parts 202
  • the M power feeding parts 202 may be arranged around the first isolator 203
  • each feeder can be electrically connected to a feeder arm
  • the M feeder arms 205 can be located between the first insulator 201 and the second insulator 206, and surround according to the first order Setting
  • each feeding arm 205 can be coupled with the first isolator 203, the grounding body 204 and the target radiator 207
  • M is an integer greater than 1.
  • the distribution shape of the foregoing M feed arms may form a ring-like shape.
  • the grounding body is electrically connected to the first insulator and the second insulator, and the first insulator is provided in the first insulator, and the second insulator is provided in the first insulator and the second insulator.
  • the second insulator is arranged around the M power feeders, and the M power feeders are arranged around the first insulator, so the grounding body and the second insulator can form a metal cavity, the grounding body and the first isolation
  • the body may form a metal back cavity (hereinafter referred to as a target metal back cavity) arranged in the metal cavity.
  • a target metal back cavity may also be a radiator as the antenna unit provided in the embodiment of the present invention.
  • FIG. 2 is an exploded view of the structure of the antenna unit, that is, the component parts of the antenna unit are all in a separated state.
  • the first insulator, the feeder, the first insulator, the grounding body, the feeder arm, the second insulator, the target radiator, and the second insulator can be combined into a whole to form an embodiment of the present invention.
  • the antenna unit can be combined into a whole to form an embodiment of the present invention.
  • the first end of each of the above-mentioned M power-feeding arms may be electrically connected to different ones of the above-mentioned M power-feeding parts. That is, the first end of the feeding arm may be the feeding point of the antenna unit.
  • the above-mentioned first order may be a clockwise order or a counterclockwise order. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the above-mentioned M feeding arms are four feeding arms, and the four feeding arms can be fed from the first one. From the first end of the electric arm to the second end of the first feeding arm, then from the first end of the second feeding arm to the second end of the second feeding arm, and then from the third feeding arm The sequence from the first end of the fourth feeder arm to the second end of the third feeder arm, and finally from the first end of the fourth feeder arm to the second end of the fourth feeder arm, is set in a clockwise order.
  • the antenna unit provided in the embodiment of the present invention may be manufactured by any possible technology such as LTCC technology, PCB processing technology, or substrate processing technology. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • various components in the antenna unit can pass through
  • the LTCC technologies are combined to form the antenna unit provided by the embodiment of the present invention.
  • the material of the above-mentioned first insulator may be any possible material such as ceramic or plastic. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the material of the above-mentioned first insulator may be one type of insulating material or multiple types of insulating materials, which may be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the relative dielectric constant and the loss tangent of the first insulator are materials with relatively small values.
  • the relative dielectric constant of the material of the first insulator may be less than or equal to 5.
  • the relative dielectric constant of the material of the first insulator may be greater than or equal to 2 and less than or equal to 5.
  • the material of the above-mentioned second insulator may also be any possible materials such as ceramics and plastics. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the material of the above-mentioned second insulator may be one type of insulating material or multiple types of insulating materials, which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the material of the above-mentioned second insulator may be the same as the material of the first insulator, or may be different from the material of the first insulator, which can be specifically determined according to actual usage requirements, which is not limited in the embodiment of the present invention.
  • the material of the above-mentioned second insulator may be a material with relatively small relative permittivity and loss tangent.
  • the above-mentioned grounding body may be used as a part of the ground of the antenna unit provided in the embodiment of the present invention, so that the antenna unit can be reliably grounded, and the performance of the antenna unit can be relatively stable.
  • the above-mentioned grounding body may be a metal sheet provided at the bottom of the first insulator, or may be a metal material sprayed on the bottom of the first insulator, or the like.
  • the grounding body can also be arranged at the bottom of the first insulator in any other possible form, which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the following specifically takes an antenna unit as an example to exemplarily describe the working principle of the antenna unit provided in the embodiment of the present invention for transmitting and receiving signals.
  • the signal source in the electronic device sends out an AC signal
  • the AC signal can be transmitted to the feeding arm through the feeding part.
  • the feeding arm can be coupled with the ground body and the first isolator (that is, the target metal back cavity formed by the ground body and the first isolator), so that the target metal back Induction current is generated in the cavity, and then the target metal back cavity can radiate electromagnetic waves of multiple frequencies (due to the coupling of the feeding arm and the target metal back cavity, there can be multiple current paths for the induced current, such as from the feeding arm to the The current path from the target metal back cavity to the feed arm, the current path formed on the target metal back cavity, etc., so the current on the feed arm radiates electromagnetic waves through the target metal back cavity at multiple frequencies).
  • the feed arm can be coupled with the target radiator, so that the induced AC signal is generated on the target radiator, and then the target radiator can radiate electromagnetic waves of multiple frequencies (due to the coupling of the feed arm and the target radiator).
  • the target radiator can radiate electromagnetic waves of multiple frequencies (due to the coupling of the feed arm and the target radiator).
  • There can be multiple current paths for the induced current such as the current path from the feed arm to the target radiator and then to the feed arm, the current path formed on the target radiator, etc., so the current on the feed arm passes through the target
  • the electromagnetic wave radiated by the radiator can also have multiple frequencies.)
  • the electronic device can transmit signals of different frequencies through the antenna unit provided in the embodiment of the present invention, that is, the antenna unit can generate a wider bandwidth.
  • electromagnetic waves in the space where the electronic device is located can excite the target metal back cavity (that is, the grounding body and the first Isolator) or target radiator, so that the target metal back cavity or target radiator can generate induced current.
  • the target metal back cavity or the target radiator can be coupled with the feeding arm, so that the feeding arm generates an induction circuit (that is, an induced AC signal).
  • the power feeding arm can input the AC signal to the receiver in the electronic device through the power feeding part, so that the electronic device can receive the 5G millimeter wave signal sent by other devices. That is, the electronic device can receive signals of different frequencies through the antenna unit provided in the embodiment of the present invention.
  • the antenna unit provided by the embodiment of the present invention works.
  • the frequency range covered by the antenna unit can be 26.249GHz-40.054GHz, and this frequency range can also include multiple main millimeter wave frequency bands (for example, n257, n260, and n261).
  • the antenna unit provided by the embodiment of the present invention can cover the mainstream 5G millimeter wave frequency band, thereby improving the antenna performance of the electronic device.
  • the antenna unit when the return loss of an antenna unit is less than -10 dB, the antenna unit can not only meet actual use requirements, but also has relatively good antenna performance. That is, the antenna unit provided by the embodiment of the present invention can ensure better performance on the basis of meeting actual use requirements.
  • points a and b in the above figure 3 are used to mark the value of return loss. It can be seen from Figure 3 that the value of return loss marked by point a is -9.8622dB, and the value of return loss marked by point b is -10.014dB.
  • the embodiment of the present invention provides an antenna unit, since both the first isolator and the second isolator are electrically connected to the ground, and the second isolator is arranged around M feeders, and the M feeders surround the first isolator Therefore, the first isolator and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal back cavity (first isolation Body and grounding body) and the target radiator coupling.
  • the feeding arm when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate induced current, which can make the feeding arm, Both the metal back cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feed arm and the metal back cavity and the target radiator (for example, from the feed arm to the metal back cavity).
  • the frequency of the electromagnetic wave generated by the current on the feed arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit.
  • the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
  • each of the foregoing M power feeders may form an "L-shaped" power feed structure with a power feed arm connected to it.
  • one feed arm may be a feed arm with a symmetrical structure.
  • the structure of the feeding arm can be symmetrical in the horizontal direction, or symmetrical in the vertical direction. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • one feed arm (any one of the above-mentioned M feed arms) may be any of the following feed arms: rectangular feed arm, "T” shaped feed arm Arm, "Y"-shaped feed arm.
  • the aforementioned one feeding arm may also be any other possible feeding arms. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the above-mentioned M feeding arms may be the same kind of feeding arms (for example, the M feeding arms are all "Y”-shaped feeding arms), or different feeding arms ( For example, some of the M feed arms are “T”-shaped feed arms, and the other part of the feed arms is “Y”-shaped feed arms).
  • the embodiment of the present invention does not limit it.
  • the foregoing M power feeding arms may all be “T”-shaped power feeding arms 205 as shown in FIG. 2.
  • the coupling amount when the feeder arms of different forms (such as shape, material, structure, etc.) are coupled to the ground body and the first isolator may be different, and the impedance requirements of the feeder arms of different forms may also be Different, that is, different types of feed arms may have different effects on the working performance of the antenna unit. Therefore, a suitable feed arm can be selected according to the actual use requirements of the antenna unit, so that the antenna unit can work in a suitable frequency range.
  • the projection of each of the M feed arms on the first plane may intersect the projection of the first isolator on the first plane.
  • the first plane may be a plane where the cross-sections of the M power feeding parts on the first insulator are located.
  • the M feed arms when the projection of each of the M feed arms on the first plane intersects the projection of the first isolator on the first plane, the M feed arms Each feed arm in the arm can meet the coupling connection relationship with the target metal back cavity formed by the first isolator and the ground body (that is, when the antenna unit is working, each of the M feed arms feeds The arms are all coupled with the target metal back cavity; when the antenna unit is not working, each of the M feed arms is insulated from the target metal back cavity).
  • the M feed arms may follow the first sequence described above along the inner side wall of the second isolator in the order from the first end of the feed arm to the second end of the feed arm Set up.
  • the second end of one of the above-mentioned M feeding arms may be adjacent to the first end of the next feeding arm adjacent to the one feeding arm.
  • FIG. 4 it is a top view of the antenna unit provided by an embodiment of the present invention on the reverse Z axis (for example, the coordinate system shown in FIG. 2).
  • the above-mentioned M feeding arms are four feeding arms, which are the first feeding arm 2050, the second feeding arm 2052, the third feeding arm 2051, and the fourth feeding arm respectively.
  • Electric arm 2053 the four feeding arms can follow from the first end of the first feeding arm 2050 to the second end of the first feeding arm 2050, to the first end of the second feeding arm 2052, and then from the second feeding arm 2050.
  • the order of the first end of the 2050 is set in a clockwise order. It can be seen from FIG. 4 that the first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm may form a ring-like shape. In other words, the first power feed arm, the second power feed arm, the third power feed arm and the fourth power feed arm are arranged around.
  • the current flowing on the feeder arm has directivity when the antenna unit is working, it is possible to add different feeder arms (specifically, by arranging the M feeder arms in the aforementioned first order). It can be the distance between the first end of the feeder arm (that is, the distance between the first end of one feeder arm and the first end of the other feeder arm is relatively large), so that different feeder arms can be reduced Therefore, the isolation of the port of the antenna unit (that is, the feed port of the antenna unit) can be improved. And because the feeding arms are arranged along the inner side wall of the second isolator, the feeding arms can be distributed as discretely as possible, thereby further reducing the mutual interference between the feeding arms, and further improving the port performance of the antenna unit. Isolation.
  • the cross section of the second isolator may be rectangular, and the above M feed arms may include a first feed arm, a second feed arm, a third feed arm, and a fourth feed arm.
  • the electric arm, the first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm are sequentially arranged along the inner side wall of the second isolator.
  • first feeding arm and the third feeding arm may both be parallel to the first inner side wall of the second isolator, and both the second feeding arm and the fourth feeding arm may be parallel to the second inner side wall of the second isolating body. Parallel, the first inner side wall is perpendicular to the second inner side wall.
  • the metal cavity formed by the second isolator and the grounding body can be a rectangular metal cavity.
  • the feeding arm and the fourth feeding arm may be sequentially arranged along the inner side wall of the rectangular metal cavity.
  • first, second, third, and fourth feed arms may also be along the inner side of the second isolator in any other possible manner.
  • the walls are arranged in sequence, for example, both the first feeding arm and the third feeding arm can be parallel to the second inner side wall of the second isolator, and both the second feeding arm and the fourth feeding arm can be connected to the second inner wall of the second isolating body.
  • An inner side wall is parallel. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the first feeding arm 2050 and the third feeding arm 2051 may both be parallel to the inner side wall S1 of the second isolator (that is, the above-mentioned first inner side wall), and the second feeding arm 2052 Both the fourth feeding arm 2053 and the fourth feeding arm 2053 may be parallel to the inner side wall S2 of the second isolator (ie, the above-mentioned second inner side wall). It can be seen from FIG. 4 that the inner side wall S1 of the second isolator is perpendicular to the inner side wall S2 of the second isolator.
  • FIG. 4 is a top view of the antenna unit provided by an embodiment of the present invention on the reverse of the Z axis, the coordinate system illustrated in FIG. 4 only illustrates the X axis and the Y axis.
  • the first feeding arm and the third feeding arm may form a feeding arm group (hereinafter referred to as the first feeding arm group), and the second feeding arm may be combined with the first feeding arm.
  • the four feeding arms form a feeding arm group (hereinafter referred to as the second feeding arm group).
  • the above-mentioned first feeding arm can be .
  • the second feeder arm, the third feeder arm and the fourth feeder arm are arranged in sequence along the inner side wall of the second isolator to increase the above two feeder arm groups (the first feeder arm group and the second feeder arm group).
  • the distance between the feeder arms in the feeder arm group can reduce the mutual influence between these feeder arm groups during the working process of the antenna unit, and thus can improve the isolation of the antenna unit port.
  • the first feed arm group and the second feed arm group may be two feed arm groups with different polarizations.
  • the first feed arm group may be a first polarized feed arm group
  • the second feed arm group may be a second polarized feed arm group.
  • the foregoing first polarization and second polarization may be polarizations in different directions.
  • the polarization direction of the first polarization may be +45° polarization
  • the polarization direction of the second polarization may be -45° polarization
  • the polarization direction of the first polarization It can be horizontal polarization
  • the polarization direction of the second polarization can be vertical polarization, and so on.
  • the polarization direction of the first polarization and the polarization direction of the second polarization may also be any other possible directions. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the first feeding arm group composed of the first feeding arm 2050 and the third feeding arm 2051 may be a feeding arm of +45° polarization (that is, the above-mentioned first polarization).
  • the second feed arm group composed of the second feed arm 2052 and the fourth feed arm 2052 may be a feed arm group with -45° polarization (that is, the above-mentioned second polarization).
  • the present invention can be The antenna unit provided by the embodiment can form a dual-polarized antenna unit, which can improve the wireless connection capability of the antenna unit, thereby reducing the probability of communication disconnection of the antenna unit, and further improving the communication capability of the antenna unit.
  • the other feeding arm in the first feeding arm group when one feeding arm in the first feeding arm group is in the working state, the other feeding arm in the first feeding arm group may also be in the working state.
  • the other feeding arm in the second feeding arm group when one feeding arm in the second feeding arm group is in the working state, the other feeding arm in the second feeding arm group may also be in the working state. That is, the feeding arms in the same feeding arm group can work at the same time.
  • the feeding arms in the first feeding arm group when the feeding arms in the first feeding arm group are in a working state, the feeding arms in the second feeding arm group may or may not be in a working state.
  • the embodiment of the present invention does not limit it.
  • the antenna unit may include two feeder arm groups
  • the electronic device can transmit and receive signals through the two feeder arm groups in the antenna unit, that is, it can be provided by the embodiment of the present invention.
  • the antenna unit implements MIMO technology, so that the communication capacity and communication rate of the antenna unit can be increased, that is, the data transmission rate of the antenna unit can be increased.
  • all the above M feed arms may be located on the same plane.
  • the coupling parameters when the M feeding arms are coupled to the target metal back cavity may be different.
  • the induced currents generated by the coupling between the above M feed arms and the target metal back cavity may be different. Therefore, the above M feed arms and ground can be flexibly set according to the actual use requirements of the antenna unit (for example, the frequency range covered by the antenna unit). The distance between the bodies.
  • the coupling parameters of the M feed arms and the target radiator are also different, for example, the coupling of the M feed arms and the target radiator produces Therefore, the distance between the aforementioned M feed arms and the target radiator can be flexibly set according to the actual use requirements of the antenna unit (for example, the frequency range covered by the antenna unit).
  • the above M power feeders may penetrate the grounding body and be insulated from the grounding body.
  • one end of the power feeder can be electrically connected to the feeder arm (specifically, the first end of the feeder arm), and the other end of the power feeder can be connected to a signal source in the electronic device (for example, electronic The 5G signal source in the device) is electrically connected.
  • a signal source in the electronic device for example, electronic The 5G signal source in the device
  • the current of the signal source in the electronic device can be transmitted to the feeding arm through the feeding part, and then coupled to the target metal back cavity and the target radiator through the feeding arm, so that the target metal back cavity and the target The radiator generates an induced current, so that the target metal back cavity and the target radiator can radiate electromagnetic waves of different frequencies.
  • the antenna unit provided in the embodiment of the present invention can radiate 5G millimeter wave signals in the electronic device.
  • the cross section of the second isolator is rectangular
  • the M power feeders may be four power feeders
  • two of the four power feeders may be located at On one diagonal of the cross section of the second isolator
  • the other two of the four power feeders may be located on the other diagonal of the cross section of the second isolator.
  • the two feeders electrically connected to the first feeder arm and the third feeder arm may be located on a diagonal line of the cross section of the second isolator, and are opposite to the first feeder arm.
  • the two feeders electrically connected to the second feeder arm and the fourth feeder arm may be located on the other diagonal line of the cross section of the second isolator.
  • the first end of the arm) and the power feeder 2022 electrically connected to the fourth feeder arm 2053 (specifically, the first end of the fourth feeder arm) may be located on the side of the first isolator.
  • FIG. 5 it is a diagram of the transmission coefficient of the antenna unit when the antenna unit provided by the embodiment of the present invention works.
  • the cross section of the second isolator is rectangular; and the feed arm group composed of the first feed arm and the third feed arm is a +45° polarized feed arm group, the second feed arm and the fourth feed arm
  • the feed arm group composed of the electric arms is a -45° polarized feed arm group, and the feeding part electrically connected to the first and third feed arms is arranged on the cross section of the second isolator
  • the feeder arms electrically connected to the second feeder arm and the fourth feeder arm are distributed on the other diagonal line of the cross section of the second isolator.
  • the isolation of the port of the antenna unit is less than -20dB.
  • the isolation of the port of the antenna unit is -10dB to meet the actual use requirements, and the smaller the isolation of the port of the antenna unit, the better the polarization isolation of the antenna unit, which can further improve the polarization of the antenna unit performance.
  • the signal sources electrically connected to the two feeders located on the same diagonal have the same amplitude and a phase difference of 180 degrees.
  • a signal source electrically connected to two feeders electrically connected to the feeder arms (the aforementioned first feeder arm and the third feeder arm) in the aforementioned first feeder arm group The amplitudes are equal, and the phase difference is 180 degrees.
  • the signal sources electrically connected to the two feeders electrically connected to the feeder arms (the second feeder arm and the fourth feeder arm) in the second feeder arm group have the same amplitude and a phase difference of 180 degrees.
  • any diagonal line on the cross section of the first isolator may be opposite to Any diagonal line on the cross section of the second separator is not parallel.
  • diagonal 1 a diagonal line of the first isolator (hereinafter referred to as diagonal 1) and a diagonal line of the second insulator (hereinafter referred to as diagonal 2) are used as follows. Exemplary description.
  • the diagonal line 1 and the diagonal line 2 are not parallel, which can be understood as: the included angle between the diagonal line 1 and the diagonal line 2 (hereinafter referred to as the first included angle) is greater than 0°, and Less than 180°.
  • the foregoing first included angle may be determined according to the performance of the antenna unit provided in the embodiment of the present invention.
  • the first included angle (denoted as ⁇ ) may be greater than 0 degrees and less than or equal to 45 degrees. .
  • the value range of the first included angle is 45° ⁇ 90°, or 90° ⁇ 135°, or 135° ⁇ 180°, diagonally
  • the positional relationship between the line 1 and the diagonal line 2 and the value range of the first included angle are 0° ⁇ 45°, the positional relationship between the diagonal line 1 and the diagonal line 2 is the same.
  • the diagonal line of the cross section of the first isolator 203 (ie diagonal line 1) D1 and the diagonal line of the cross section of the second isolator 208 (ie diagonal line 2)
  • the included angle of D2 (that is, the above-mentioned first included angle) may be 45 degrees.
  • the performance of the antenna unit may be different. Therefore, the first isolator and the second isolator may be reasonably arranged according to the actual use requirements of the antenna unit. In this way, the antenna unit can work stably in the 5G millimeter wave frequency band.
  • the antenna unit 20 further includes a third insulator 209 disposed between the first insulator 201 and the second insulator 206, and the third insulator 209 may Carry the above M feed arms 205.
  • the power feeder 202 passing through the third insulator 209 is electrically connected to one power feeder arm 205.
  • the circular filling part on the third insulator 209 in FIG. 6 is used to indicate that the second insulator 208 passes through the third insulator 209 and is embedded in the first insulator 201 to be electrically connected to the grounding body 204.
  • the third insulator 209 may be located between the first insulator 201 and the second insulator 206, the above-mentioned M feeder arms 205 may be carried in the third insulator 209, and each feeder arm The power feeder 202 which is different from the M power feeders is electrically connected in the third insulator 209.
  • the cross section of the third insulator may be the same as the cross section of the first insulator, for example, any possible shape such as a rectangle or a circle.
  • the shape of the above-mentioned third insulator may also be any shape that meets actual use requirements, which is not specifically limited in the embodiment of the present invention, and may be specifically determined according to actual use requirements.
  • the material of the third insulator may be any possible material such as plastic or foam. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the material of the third insulator may be an insulating material with relatively small relative permittivity and loss tangent.
  • the material of the third insulator may be the same as the material of the first insulator, or may be different from the material of the first insulator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the relative dielectric constant of the material of the third insulator may be 2.5, and the loss tangent value may be 0.001.
  • the smaller the loss tangent value of the material of the third insulator the smaller the influence of the third insulator on the radiation effect of the antenna unit. That is to say, the smaller the loss tangent value of the material of the third insulator, the smaller the influence of the third insulator on the working performance of the antenna unit and the better the radiation effect of the antenna unit.
  • the above-mentioned first isolator may be used to isolate electromagnetic waves radiated from the grounding body in the direction where the first isolator is located, so that the antenna unit provided by the embodiment of the present invention can be directional.
  • the above-mentioned first insulator may be any component having an isolation function, such as a metal sheet or a metal column provided in the first insulator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the above-mentioned first isolator may be N first metal pillars, and the length of the first metal pillar may be less than the distance between the M feed arms and the ground, and N is greater than 1. Integer.
  • FIG. 7 it is a cross-sectional view in the Z-axis direction of the antenna unit provided by an embodiment of the present invention.
  • the length of the first metal pillar (ie, the first spacer) 203 may be equal to the thickness of the first insulator 201.
  • the diameter of the above-mentioned first metal pillar may be determined according to the size of the first insulator. Specifically, the diameter of the first metal pillar may be determined according to the cross-sectional area of the first insulator.
  • the material of the above-mentioned first metal pillar may be any possible material such as gold, silver, or copper. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the above-mentioned first metal pillar may be a metal pillar formed by pouring a metal material in the first blind hole.
  • the first blind hole may be provided in the first insulator.
  • the antenna unit (specifically, it may be in the first insulator) provided in the embodiment of the present invention may be provided with N first blind holes, and a first metal pillar is respectively provided in the N first blind holes.
  • first metal pillar may also be implemented through any other possible process, which may be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the N first blind holes may be evenly distributed in the first insulator, so that the N first metal pillars may be evenly distributed in the first insulator.
  • the distance between any two adjacent first metal pillars among the above N first metal pillars may be equal.
  • the processing process of the first isolator can be simplified by arranging blind holes in the antenna unit and setting the first metal pillars in the blind holes. Reduce the processing difficulty of the antenna unit.
  • the smaller the distance between the two adjacent first metal pillars among the N first metal pillars, the smaller the distance between the N first metal pillars (ie, the first spacers) and the The target metal back cavity formed by the ground body has a better radiation effect, and the N first metal pillars have a better effect of isolating electromagnetic waves radiated from the ground body in the direction where the N first metal pillars are located.
  • the denser the first metal pillars arranged in the antenna unit the better the radiation effect of the antenna unit.
  • the distance between two adjacent first metal pillars among the foregoing N first metal pillars may be less than or equal to the first target value.
  • the first target value may be a quarter of the minimum wavelength of the electromagnetic waves generated by coupling the N first metal pillars and the grounding body (that is, the target metal back cavity) and the foregoing M feeding arms.
  • the process of arranging the first metal pillars in the first insulator is relatively simple and easy to implement, arranging the first isolator as the N first metal pillars can simplify the process provided by the embodiment of the present invention.
  • the manufacturing process of the antenna unit since the process of arranging the first metal pillars in the first insulator is relatively simple and easy to implement, arranging the first isolator as the N first metal pillars can simplify the process provided by the embodiment of the present invention. The manufacturing process of the antenna unit.
  • the second isolator may be K second metal pillars, and the length of the second metal pillars may be greater than or equal to the distance between the target radiator and the ground, and K is greater than 1. Integer.
  • the length of the second metal pillar (ie, the second isolator) 208 may be equal to the distance between the target radiator 207 and the ground provided at the bottom of the first insulator 201.
  • the diameter of the second metal pillar may be determined according to the size of the first insulator and the second insulator. Specifically, the diameter of the second metal pillar may be determined according to the cross-sectional area of the first insulator and the cross-sectional area of the second insulator.
  • the material of the above-mentioned second metal pillar may be any possible material such as gold, silver, or copper. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the above-mentioned second metal pillar may be a metal pillar formed by pouring a metal material in the first through hole.
  • the first through hole may be provided in the first insulator and the second insulator.
  • the antenna unit (specifically, in the first insulator) provided by the embodiment of the present invention may be provided with K first through holes, and each of the K first through holes is provided with a second metal pillar.
  • the above-mentioned second metal pillar may also be implemented through any other possible process, which may be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention.
  • the K first through holes may be evenly distributed in the first insulator and the second insulator, so that the K second metal pillars may be evenly distributed in the first insulator and the second insulator.
  • Two insulators In other words, the distance between any two adjacent second metal pillars among the K second metal pillars may be equal.
  • the punching process is relatively simple, it is possible to simplify the processing process of the second isolator by arranging through holes in the antenna unit and arranging the second metal pillars in the blind holes. Reduce the processing difficulty of the antenna unit.
  • the K second metal pillars (ie, the second spacers) are isolated from each other.
  • the grounding body, the first isolator and the target radiator have better electromagnetic waves radiating in the direction where the K second metal pillars are located. That is to say, the denser the second metal pillars arranged in the antenna unit, the better the radiation effect of the antenna unit.
  • the distance between two adjacent second metal pillars among the K second metal pillars may be less than or equal to the second target value.
  • the second target value may be a quarter of the minimum wavelength of the electromagnetic wave generated by the coupling between the target radiator and the M feed arms.
  • the process of arranging the second metal pillars in the antenna unit is relatively simple and easy to implement, arranging the above-mentioned second isolator as the above K second metal pillars can simplify the antenna provided by the embodiment of the present invention.
  • the production process of the unit since the process of arranging the second metal pillars in the antenna unit is relatively simple and easy to implement, arranging the above-mentioned second isolator as the above K second metal pillars can simplify the antenna provided by the embodiment of the present invention. The production process of the unit.
  • the above-mentioned target radiator may be a polygonal radiator or a circular radiator.
  • the above-mentioned target radiator may be any possible polygonal radiator, such as a rectangular radiator, a hexagonal radiator, or a square radiator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the shape of the above-mentioned target radiator may also be any other possible shape, which may be specifically determined according to actual use requirements, and is not limited in the embodiment of the present invention.
  • the frequency of the electromagnetic wave generated by the coupling between the target radiator and the M feed arms is related to the parameters of the target radiator (for example, the shape and area of the target radiator, etc.). Specifically, the frequency of the target radiator The smaller the area, the higher the frequency of the electromagnetic wave generated by the coupling between the target radiator and the aforementioned M feed arms. Therefore, the target radiator with appropriate parameters can be selected according to actual use requirements (for example, a target radiator with a suitable shape and/or a suitable area). Target radiator, etc.). In this way, the antenna unit provided by the embodiment of the present invention can be made to work in the 5G millimeter wave frequency band.
  • the target radiator may be carried on the second insulator or in the second insulator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the target radiator 207 may be carried on the second insulator 206.
  • the performance of the antenna unit may also be different. Therefore, the location of the target radiator can be flexibly set according to actual use requirements, thereby making the design of the antenna unit more flexible.
  • the antenna units shown in each of the foregoing drawings are all exemplified in conjunction with a drawing in the embodiment of the present invention.
  • the antenna units shown in each of the above figures can also be implemented in combination with any other figures illustrated in the above embodiments that can be combined, and will not be repeated here.
  • An embodiment of the present invention provides an electronic device, and the electronic device may include the antenna unit provided in any one of the above-mentioned embodiments in FIG. 2 to FIG. 7.
  • the antenna unit may include the antenna unit provided in any one of the above-mentioned embodiments in FIG. 2 to FIG. 7.
  • the antenna unit reference may be made to the relevant description of the antenna unit in the foregoing embodiment, which will not be repeated here.
  • the electronic device in the embodiment of the present invention may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle terminal, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • the non-mobile electronic device may be a personal computer (PC), a television (television, TV), a server, or a teller machine, etc., which is not specifically limited in the embodiment of the present invention.
  • At least one first groove may be provided in the housing of the electronic device, and each of the at least one first groove may be provided with at least one antenna unit.
  • the above-mentioned first groove is provided in the housing of the electronic device, and at least one antenna unit provided in the embodiment of the present invention is arranged in each first groove, so as to realize the integration of at least An antenna unit provided in an embodiment of the present invention can thereby make a terminal device include an antenna array composed of the antenna units provided in the embodiment of the present invention.
  • the above-mentioned first groove may be provided in the frame of the housing of the electronic device.
  • the electronic device 3 may include a housing 30.
  • the housing 30 may include a first frame 31, a second frame 32 connected to the first frame 31, a third frame 33 connected to the second frame 32, and a fourth frame connected to both the third frame 33 and the first frame 31 34.
  • the electronic device 3 may further include a floor 35 connected to both the second frame 32 and the fourth frame 34, and a first antenna 36 composed of a third frame 33, a part of the second frame 32 and a part of the fourth frame 34.
  • a first groove 37 is provided on the second frame 32.
  • the antenna unit provided in the embodiment of the present invention can be disposed in the first groove, so that the electronic device can include the array antenna module formed by the antenna unit provided in the embodiment of the present invention, and the integration of the device in the electronic device can be realized.
  • the above-mentioned floor can be a PCB or a metal middle frame in an electronic device, or a display screen of an electronic device, etc., which can be any part that can be used as a virtual ground.
  • the above-mentioned first antenna may be a second-generation mobile communication system (ie 2G system), a third-generation mobile communication system (ie 3G system), and a fourth-generation mobile communication system of an electronic device.
  • the communication antenna of the system ie 4G system and other systems.
  • the antenna unit provided in the embodiment of the present invention may be an antenna of a 5G system of an electronic device.
  • the first frame, the second frame, the third frame, and the fourth frame may be connected end to end in sequence to form a closed frame; or, the first frame, the second frame, the third frame, and the Part of the frame in the fourth frame may be connected to form a semi-closed frame; or, the above-mentioned first frame, second frame, third frame, and fourth frame may be disconnected from each other to form an open frame.
  • it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the frame included in the housing 30 shown in FIG. 8 is an example of a closed frame formed by connecting the first frame 31, the second frame 32, the third frame 33, and the fourth frame 34 in turn.
  • the frame formed by other connection methods partial frame connection or non-connection of each frame
  • the implementation manner is the same as the implementation manner provided by the embodiment of the present invention Similar, in order to avoid repetition, I will not repeat them here.
  • the above-mentioned at least one first groove may be arranged in the same frame of the housing, or may be arranged in different frames. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • a first groove (any one of the above-mentioned at least one first groove) may be provided in the first frame, the second frame, the third frame, or the fourth frame of the housing .
  • a first groove may be provided in the first frame, the second frame, the third frame, or the fourth frame of the housing .
  • it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the first groove 37 is provided on the second frame 32 of the housing 30, and the opening direction of the first groove 37 is the coordinate shown in FIG.
  • the positive direction of the Z-axis of the system is taken as an example.
  • the opening direction of the first groove when the first groove is provided on the first frame of the housing, the opening direction of the first groove may be the positive X-axis; When the groove is arranged on the third frame of the housing, the opening direction of the first groove can be the reverse of the X axis; when the first groove is arranged on the fourth frame of the housing, the opening of the first groove The direction can be the reverse of the Z axis.
  • multiple first grooves may be provided in the housing of the electronic device, and each first groove may be provided with one antenna unit provided in the embodiment of the present invention.
  • the multiple antenna elements can form an antenna array in the electronic device, so that the antenna performance of the electronic device can be improved.
  • the antenna unit provided by the embodiment of the present invention is suitable for forming a broadband antenna array.
  • the electronic device can be provided with at least two first grooves, and each first groove is provided with an antenna unit provided by the embodiment of the present invention, so that the electronic device can include the antenna array, thereby improving the electronic device Antenna performance.
  • the distance between two adjacent antenna units may be based on the isolation of the antenna units and the multiple antenna units.
  • the scanning angle of the antenna array formed by the antenna unit is determined. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
  • the number of first grooves provided on the housing of the electronic device may be determined according to the size of the first groove and the size of the housing of the electronic device, which is not limited in the embodiment of the present invention .
  • the antenna unit can be arranged in a first groove in the second frame 32, the target radiator 207 in the antenna unit can be located on the second insulator 206, and the second insulator 208 can pass through the first insulator 206.
  • the two insulators 206 and the first insulator are electrically connected to the grounding body. Among them, the first insulator and the grounding body are not shown in the figure.
  • FIG. 11 exemplifies the four first grooves provided on the second frame (four antenna units are provided), which does not implement the present invention. Examples cause any limitations. It can be understood that, in actual implementation, the number of first grooves provided on the second frame can be any possible value, which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not make any limitation.
  • An embodiment of the present invention provides an electronic device, which may include an antenna unit.
  • the antenna unit may include: a first insulator, M feeding parts and a first isolator arranged in the first insulator, a grounding body arranged at the bottom of the first insulator, M feeding arms, a second insulator, and a second insulator.
  • the target radiator carried by the insulator, and the second insulator arranged in the first insulator and the second insulator; wherein, the first insulator and the second insulator are both electrically connected to the ground, and the second insulator surrounds the M
  • the M power feeders are arranged around the first isolator and are insulated from the ground body.
  • Each power feeder is electrically connected to the first end of a power feeder arm, and the M power feeders are located at the first end.
  • M is an integer greater than 1.
  • the first isolator is The body and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal backing cavity (the first isolating body and the grounding body are composed ) Is coupled to the target radiator.
  • the feeding arm when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate an induced current, thereby making the feeding arm, Both the metal-backed cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feeding arm and the metal-backed cavity and the target radiator (for example, from the feeding arm to the metal-backed cavity).
  • the frequency of the electromagnetic wave generated by the current on the feeding arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit.
  • the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.

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Abstract

La présente invention concerne, selon certains modes de réalisation, une unité d'antenne et un dispositif électronique. L'unité d'antenne comprend : un premier isolant, M parties d'alimentation et des premiers isolateurs disposés dans le premier isolant, un corps de mise à la terre disposé au fond du premier isolant, M bras d'alimentation, un second isolant, un radiateur cible supporté par le second isolant, et des seconds isolateurs disposés dans le premier isolant et le second isolant, les premiers isolateurs et les seconds isolateurs étant électriquement connectés au corps de mise à la terre ; les seconds isolateurs étant disposés autour des M parties d'alimentation ; les M parties d'alimentation étant disposées autour des premiers isolateurs et isolées du corps de mise à la terre, et chacune des parties d'alimentation étant électriquement connectée à un bras d'alimentation respectif ; les M bras d'alimentation étant situés entre le premier isolant et le second isolant et disposés de manière circulaire dans un premier ordre ; chacun des bras d'alimentation étant couplé au premier isolateur respectif, au corps de mise à la terre et au radiateur cible ; et M étant un nombre entier supérieur à 1.
PCT/CN2020/124418 2019-10-31 2020-10-28 Unité d'antenne et dispositif électronique WO2021083219A1 (fr)

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