WO2021082968A1 - 天线模组及电子设备 - Google Patents
天线模组及电子设备 Download PDFInfo
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- WO2021082968A1 WO2021082968A1 PCT/CN2020/121905 CN2020121905W WO2021082968A1 WO 2021082968 A1 WO2021082968 A1 WO 2021082968A1 CN 2020121905 W CN2020121905 W CN 2020121905W WO 2021082968 A1 WO2021082968 A1 WO 2021082968A1
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- feeder
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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
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/062—Two dimensional planar arrays using dipole aerials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/48—Combinations of two or more dipole type antennas
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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
- 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
Definitions
- This application relates to the field of electronic technology, and in particular to an antenna module and electronic equipment.
- Millimeter wave has the characteristics of high carrier frequency and large bandwidth, and it is the main means to realize 5G ultra-high data transmission rate. Due to the severe spatial loss of electromagnetic waves in the millimeter wave frequency band, a wireless communication system using the millimeter wave frequency band needs to adopt a phased array architecture. Through the phase shifter, the phase of each array element is distributed according to a certain law, thereby forming a high-gain beam, and through the change of the phase shift, the beam is scanned in a certain spatial range.
- the present application provides an antenna module and electronic equipment, which can realize dual polarization.
- the present application provides an antenna module, the antenna module includes:
- a patch array the patch array being carried on the dielectric substrate
- a feed layer, the feed layer is carried on the dielectric substrate, and the feed layer and the patch array are spaced apart;
- a ground feeding portion which is electrically connected to the patch array and the ground feeding layer
- a power feeder the power feeder includes a first power feeder and a second power feeder that are cross-insulated, and the first power feeder and the second power feeder are respectively used for feeding current signals to Exciting the patch array and the ground feeding part to resonate in a corresponding frequency band.
- An embodiment of the present application also provides an electronic device.
- the electronic device includes a motherboard and the antenna module provided in any of the above embodiments.
- the antenna module is electrically connected to the motherboard, and the antenna module is used in the The radio frequency signal is sent and received under the control of the main board.
- FIG. 1 is a schematic structural diagram of an antenna module provided by an embodiment of the present application.
- FIG. 2 is a schematic diagram of a partial structure of the antenna module provided in FIG. 1;
- FIG. 3 is a schematic diagram of the structure of the antenna module provided in FIG. 2 on the XY plane;
- FIG. 4 is a schematic diagram of the structure of the antenna module provided in FIG. 2 on the YZ plane;
- FIG. 5 is a schematic diagram of the structure of the antenna module provided by the embodiment of the present application on the XY plane;
- FIG. 6 is a schematic structural diagram of a radiator of an antenna module provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of another structure of the radiator of the antenna module provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of a structure of the grounding portion in the antenna module provided by an embodiment of the present application.
- FIG. 9 is a schematic diagram of another structure of the grounding portion in the antenna module provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of another structure of the ground feed portion of the antenna module provided by an embodiment of the present application.
- FIG. 11 is a schematic diagram of a structure of a power feeding part in an antenna module provided by an embodiment of the present application.
- FIG. 12 is a schematic diagram of a structure of the feed part of the antenna module of FIG. 11 on the YZ plane;
- FIG. 13 is another schematic diagram of the structure of the power feeding part of the antenna module of FIG. 11 on the YZ plane;
- FIG. 14 is a schematic structural diagram of a cross-sectional view of an electronic device provided by an embodiment of the present application.
- 15 is another schematic structural diagram of a cross-sectional view of an electronic device provided by an embodiment of the present application.
- 16 is another schematic structural diagram of a cross-sectional view of an electronic device provided by an embodiment of the present application.
- FIG. 17 is another schematic structural diagram of a cross-sectional view of an electronic device provided by an embodiment of the present application.
- FIG. 18 is another schematic structural diagram of a cross-sectional view of an electronic device provided by an embodiment of the present application.
- Fig. 19 is a schematic diagram of the return loss curve of each port of the 1 ⁇ 4 antenna array
- Fig. 20 is a schematic diagram of the isolation curve between the patch unit ports of the 1 ⁇ 4 antenna array
- Figure 21 is a radiation gain pattern of the V polarization direction of the antenna module in the 24.25GHz frequency band;
- Figure 22 is a radiation gain pattern of the V polarization direction of the antenna module in the 26GHz frequency band
- Figure 23 is a radiation gain pattern of the antenna module in the V polarization direction in the 28GHz frequency band
- Figure 24 is the radiation gain pattern of the V polarization direction of the antenna module in the 29.5GHz frequency band
- Figure 25 is the radiation gain pattern of the antenna module in the V polarization direction of the 37GHz frequency band
- Figure 26 is a radiation gain pattern of the V polarization direction of the antenna module in the 39GHz frequency band
- Figure 27 is a radiation gain pattern of the H polarization direction of the antenna module in the 24.25GHz frequency band
- Figure 28 is a radiation gain pattern of the H polarization direction of the antenna module in the 26GHz frequency band
- Figure 29 is a radiation gain pattern of the H polarization direction of the antenna module in the 28GHz frequency band
- Figure 30 is the radiation gain pattern of the H polarization direction of the antenna module in the 29.5GHz frequency band
- Figure 31 is a radiation gain pattern of the H polarization direction of the antenna module in the 37GHz frequency band
- Fig. 32 is the radiation gain pattern of the H polarization direction of the antenna module in the 39GHz frequency band
- Figure 33 is a schematic diagram of the peak gain of the antenna module in different polarization directions as a function of frequency.
- the present application provides an antenna module, the antenna module includes:
- a patch array the patch array being carried on the dielectric substrate
- a feed layer, the feed layer is carried on the dielectric substrate, and the feed layer and the patch array are spaced apart;
- a ground feeding portion which is electrically connected to the patch array and the ground feeding layer
- a power feeder the power feeder includes a first power feeder and a second power feeder that are cross-insulated, and the first power feeder and the second power feeder are respectively used to feed current signals to Exciting the patch array and the ground feeding part to resonate in a corresponding frequency band.
- the first power feeder is used to feed a first current signal
- the first current signal is coupled to the patch array to excite the patch array to resonate in a first frequency band
- the first current A signal is coupled to the ground feeding part to excite the ground feeding part to resonate in a second frequency band, the first frequency band being different from the second frequency band
- the second feeding element is used to feed a second current signal
- the second current signal is coupled to the patch array to excite the patch array to resonate in a third frequency band
- the second current signal is coupled to the ground feeding part to excite the ground feeding part to resonate In the fourth frequency band, the third frequency band is different from the fourth frequency band.
- the minimum value of the first frequency band is greater than the maximum value of the second frequency band
- the minimum value of the third frequency band is greater than the maximum value of the fourth frequency band
- the third frequency band and the fourth frequency band jointly constitute a preset frequency band
- the preset frequency band includes at least a 3GPP millimeter wave full frequency band.
- the antenna module includes a first feed port and a second feed port
- the first feeder includes a first section and a second section that are connected by bending
- the first section is electrically connected to the The first power feeding port
- the first section is arranged adjacent to the feeding portion
- the second section is arranged adjacent to the patch array
- the second power feeding member includes a third section and a fourth section connected by bending.
- Section the third section is electrically connected to the second feed port
- the third section is arranged adjacent to the ground feeding portion
- the fourth section is arranged adjacent to the patch array
- the second section and The fourth segment remains orthogonal, and the polarization directions of the patch array and the ground feed portion remain orthogonal.
- the first section is perpendicular to the feed stratum
- the third section is perpendicular to the feed stratum
- the first section and the second section remain vertical
- the third section is perpendicular to the fourth section. The segments remain vertical.
- the second section and the fourth section are respectively located on different layers, and the second section and the fourth section are arranged at intervals.
- the second section includes a first connecting portion, a bending portion, and a second connecting portion that are connected in sequence, the first connecting portion is connected to the first section, and the first connecting portion and the second connecting portion are connected to each other.
- the fourth section and the fourth section are arranged in the same layer, and the curved section avoids the fourth section.
- any one of the second section and the fourth section is arranged on the same layer as the patch array.
- the patch array includes a first radiator and a second radiator arranged at intervals
- the ground feeding part includes a first ground feeding member and a second ground feeding member
- the first ground feeding member is electrically connected to the ground feeding member.
- the first radiator and the ground feeding layer, the second ground feeding member is electrically connected to the first radiator and the feeding ground layer;
- the ground feeding portion further includes a third ground feeding member and a fourth ground feeding member
- the third ground feeding member is electrically connected to the second radiator and the feeding ground layer, and the fourth ground feeding member is electrically connected to the second radiator and the feeding ground layer.
- first ground feeder and the second ground feeder are connected, and the first ground feeder and the second ground feeder share at least part of the structure; or, the first ground feeder and The second ground feeders are arranged at intervals; the third ground feeders and the fourth ground feeders are connected, and the third ground feeders and the fourth ground feeders share at least part of the structure; or, The third ground feeder and the fourth ground feeder are arranged at intervals.
- the patch array further includes a third radiator and a fourth radiator, and the first radiator, the second radiator, the third radiator and the fourth radiator are all arranged at intervals, And the cross-arrangement forms a first gap and a second gap, the first power feeder is at least partially disposed directly opposite to the first gap, and the second power feeder is at least partially disposed directly opposite to the second gap.
- the first radiator, the second radiator, the third radiator, and the fourth radiator are all metal patches, and the patch array is a mirror-symmetric structure.
- the first radiator has a plurality of first metallized vias arranged in an array near the edge of the first power feeder, and the second radiator is close to the edge of the second power feeder There are a plurality of second metallized vias arranged in an array.
- the edge part of the first radiator away from the first power feeder has a first receiving groove
- the edge part of the second radiator away from the second power feeder has a second receiving groove
- the middle part of the first radiator away from the first power feeder has a first curved groove
- the middle part of the second radiator away from the second power feeder has a second curved groove
- the opening direction of the first curved groove and the opening direction of the second curved groove deviate from each other.
- the ground feeding part includes a first part, a second part, a third part, a fourth part, and a fifth part.
- the first part, the second part and the third part are connected by bending in sequence, and the The first part, the fourth part, and the fifth part are connected in turn by bending, the first part is electrically connected to the patch array, the third part is electrically connected to the feed ground, and the fifth part Electrically connected to the feed formation, the first part, the second part and the third part constitute the first feed part, and the first part, the fourth part and the fifth part constitute The second ground feeder.
- the second part is kept orthogonal to the fourth part
- the third part and the fifth part are kept parallel
- the second part is connected to the first feeder and the second feeder.
- One of the electric parts is kept orthogonal
- the fourth part is kept orthogonal to the other of the first and second electric power feeders.
- the second part and the fourth part are both elongated patches, square patches or circular patches, and the second part includes a first electrical connection end and a second electrical connection end that are arranged oppositely ,
- the fourth part includes a third electrical connection end and a fourth electrical connection end that are arranged oppositely, the first electrical connection end and the third electrical connection end are both electrically connected to the first part, and the second electrical connection end
- the electrical connection end is electrically connected to the third part, and the fourth electrical connection end is electrically connected to the fifth part.
- the second part has a first through hole
- the fourth part has a second through hole
- the first through hole avoids the first electrical connection end and the second electrical connection end
- the The second through hole avoids the third electrical connection end and the fourth electrical connection end.
- the size of the feed stratum is ⁇
- the distance between the patch array and the feed stratum is ⁇ /4
- ⁇ is the wavelength at which the antenna module transmits and receives radio frequency signals.
- the projection of the patch array on the dielectric substrate is within the range of the projection of the feed layer on the dielectric substrate.
- the present application also provides an electronic device, characterized in that the electronic device includes a main board and the antenna module as described in any one of the preceding items, the main board includes an excitation source, and the antenna module is electrically connected to the excitation source.
- the excitation source is used to provide a current signal for the antenna module.
- the electronic device further includes a battery cover, the battery cover is spaced apart from the antenna module, and the battery cover is at least partially located within the radiation direction range of the antenna module to transmit and receive radio frequency signals, and the antenna module Under the control of the main board, radio frequency signals are sent and received through the battery cover, and the material of the battery cover is any one or more of plastic, glass, sapphire and ceramic.
- the main board is located on the side of the antenna module away from the battery cover, and the main board is used to reflect the radio frequency signal emitted by the antenna module toward the side of the battery cover.
- the battery cover includes a back plate and a side plate surrounding the back plate, and the side plate is located within the radiation direction range of the radio frequency signal transmitted and received by the antenna module.
- the battery cover includes a back plate and a side plate surrounding the back plate, and the back plate is located within the radiation direction range of the radio frequency signal transmitted and received by the antenna module.
- the battery cover includes a back plate and a side plate surrounding the back plate
- the antenna module includes a first module and a second module
- the radiation surface of the first module faces the back plate
- the radiation surface of the second module faces the side plate.
- the electronic device further includes a screen, the screen and the antenna module are spaced apart, and the screen is at least partly located within the radiation direction range of the radio frequency signal sent and received by the antenna module.
- the antenna module 10 includes a dielectric substrate 100, a patch array 200, a feed ground 300, a feed ground portion 400, and a power feed portion 500.
- the patch array 200 is carried on the dielectric substrate 100;
- the feed ground 300 is carried on the dielectric substrate 100, and the feed ground 300 and the patch array 200 are spaced apart; the ground feed part 400 is electrically connected to the patch array 200 and the feed ground 300;
- the power feeder 500 includes a first power feeder 510 and a second power feeder 520 that are cross-insulated.
- the first power feeder 510 and the second power feeder 520 are respectively used to feed current signals to stimulate
- the patch array 200 and the ground feeding part 400 resonate in corresponding frequency bands.
- the first power feeder 510 and the second power feeder 520 are respectively used to feed different current signals, which can excite the patch array 200 and the grounding portion 400 to resonate in different frequency bands. , Which can achieve dual-frequency dual-polarization.
- the first power feeder 510 and the second power feeder 520 feed the same current signal, which can excite the patch array 200 and the grounding portion 400 to resonate in the same frequency band, thereby enhancing signal strength .
- the antenna module 10 may be a millimeter wave module.
- the antenna module 10 is used for transmitting and receiving millimeter wave radio frequency signals of a preset frequency band.
- the antenna module 10 may be formed by a high-density interconnect (HDI) process or an IC carrier board process.
- the dielectric substrate 100 is formed by pressing a multilayer dielectric board.
- the patch array 200, the feed ground layer 300, the feed ground portion 400, and the power feed portion 500 are all carried on the dielectric substrate 100.
- the feed ground layer 300 and the patch The arrays 200 are arranged at intervals, and the ground feed portion 400 is connected between the ground feed layer 300 and the patch array 200.
- the ground feed portion 400 is a bent structure, which can extend the current transmission path, thereby increasing the bandwidth of the radio frequency signal. At the same time, the thickness of the antenna module 10 can be reduced.
- the patch array 200 includes a plurality of patch units 200a, and each patch unit 200a constitutes an antenna radiator.
- the power feeding part 500 extends to a position adjacent to the patch array 200, and the power feeding part 500 extends to a position adjacent to the feeding ground part 400, so as to facilitate coupling of the current signal on the power feeding part 500 to the patch array 200 and the feeding part. 400 on the ground.
- the patch unit 200a may be rectangular, circular, triangular, pentagonal, hexagonal, or the like. It is understandable that the patch unit 200a may be provided with a through hole, and the through hole may be a square hole, a round hole, a cross-shaped hole, or other forms of holes.
- the patch array 200 includes a first radiator 210 and a second radiator 220, the first radiator 210 and the second radiator 220 are both metal patches, and the The first radiator 210 and the second radiator 220 are arranged in mirror symmetry. At this time, when the current signal on the power feeding part 500 is coupled to the first radiator 210 and the second radiator 220, the current flow on the first radiator 210 and the second radiator 220 can be made more uniform, which can make the antenna The radiation performance of the module 10 is relatively stable.
- the first power feeder 510 is used to feed a first current signal, and the first current signal is coupled to the patch array 200 to excite the patch array 200 to resonate in a first frequency band, so The first current signal is coupled to the ground feeding part 400 to excite the ground feeding part 400 to resonate in a second frequency band, and the first frequency band may be the same as the second frequency band, or may be the same as the second frequency band. different.
- the second feeder 520 is used to feed a second current signal, and the second current signal is coupled to the patch array 200 to excite the patch array 200 to resonate in a third frequency band.
- the current signal is coupled to the ground feeding part 400 to excite the ground feeding part 400 to resonate in a fourth frequency band
- the third frequency band may be the same as the fourth frequency band or different from the fourth frequency band.
- the first frequency band when the first frequency band is different from the second frequency band and the third frequency band is different from the fourth frequency band, the first frequency band may be a high frequency frequency band, and the second frequency band may be a low frequency frequency band.
- the third frequency band may be a high frequency frequency band, and the fourth frequency band may be a low frequency frequency band. In this way, the antenna module 10 can realize the transmission and reception of multi-band radio frequency signals.
- the minimum value of the first frequency band is greater than the maximum value of the second frequency band
- the minimum value of the third frequency band is greater than the maximum value of the fourth frequency band
- the first frequency band and the second frequency band
- the third frequency band and the fourth frequency band jointly constitute a preset frequency band
- the preset frequency band includes at least a 3GPP millimeter wave full frequency band.
- 5G mainly uses two frequency bands: FR1 frequency band and FR2 frequency band.
- the frequency range of FR1 band is 450MHz ⁇ 6GHz, also called sub-6GHz band; the frequency range of FR2 band is 24.25GHz ⁇ 52.6GHz, usually called millimeter wave (mm Wave).
- the 3GPP version 15 specifies the current 5G millimeter wave frequency bands as follows: n257 (26.5-29.5GHz), n258 (24.25-27.5GHz), n261 (27.5-28.35GHz) and n260 (37-40GHz).
- the first frequency band may be a millimeter wave frequency band, and in this case, the second frequency band may be a sub-6 GHz frequency band.
- the first frequency band and the second frequency band may both be millimeter wave frequency bands, the first frequency band is a high frequency millimeter wave frequency band, and the second frequency band is a low frequency millimeter wave frequency band.
- the third frequency band may be a millimeter wave frequency band, and in this case, the fourth frequency band may be a sub-6GHz frequency band.
- the third frequency band and the fourth frequency band may both be millimeter wave frequency bands, the third frequency band is a high frequency millimeter wave frequency band, and the fourth frequency band is a low frequency millimeter wave frequency band.
- first power feeder 510 and the second power feeder 520 are arranged to be cross-insulated.
- first power feeder 510 and the second power feeder 520 remain orthogonal
- the first power feeder 510 The current direction of the antenna module 10 and the current direction of the second feeder 520 remain orthogonal.
- the antenna module 10 has a dual polarization characteristic.
- the projection of the patch array 200 on the dielectric substrate 100 is within the range of the projection of the feed layer 300 on the dielectric substrate 100.
- the size of the feed stratum 300 is ⁇
- the distance between the patch array 200 and the feed stratum 300 is ⁇ /4
- ⁇ is the wavelength at which the antenna module 10 transmits and receives radio frequency signals .
- the ⁇ is a wavelength of a fixed frequency.
- the fixed frequency is the center frequency of the first frequency band and the center frequency of the second frequency band.
- the median value is the fixed frequency.
- the fixed frequency is the middle value of the center frequency of the third frequency band and the center frequency of the fourth frequency band.
- the antenna module 10 can achieve higher radiation performance.
- the working frequency of the antenna module 10 is closely related to the structural size of the antenna module 10, and antenna modules 10 of different structural sizes can affect the working frequency of the antenna module 10, and can also affect the radiation of the antenna module 10. performance.
- the ground feeding part 400 includes a first ground feeding member 410 and a second ground feeding member 420.
- the first ground feeding member 410 is electrically connected to the first radiator 210 and the ground feeding layer 300
- the second ground feeding member 410 is electrically connected to the first radiator 210 and the ground feeding layer 300.
- the ground feeding member 420 is electrically connected to the first radiator 210 and the ground feeding layer 300.
- the ground feeding part 400 further includes a third ground feeding member 430 and a third ground feeding member 430.
- the third ground feeding member 430 is electrically connected to the second radiator 220 and the ground feeding layer 300.
- the four-fed stratum is electrically connected to the second radiator 220 and the fed stratum 300.
- the first ground feeder 410 and the second ground feeder 420 are connected and share at least part of the structure, and the first current signal fed by the first feeder 510 can pass through the first radiator 210.
- the first ground feeder 410 is transmitted to the ground feed 300.
- the second current signal fed by the second power feeding member 520 may be transmitted to the feeding ground 300 through the first radiator 210 and the first ground feeding member 410. That is to say, the first ground feeding member 410 and the second ground feeding member 420 are electrically connected to the same radiator at the same time, thereby forming at least two loops between the radiator and the ground feeding layer 300, which is helpful for raising the antenna module 10 The stability.
- the third ground feeding member 430 and the fourth ground feeding member 440 are also electrically connected to the same radiator at the same time, thereby forming at least two loops between the radiator and the ground feeding layer 300, which helps to improve the antenna module 10 stability.
- first ground feeder 410 and the second ground feeder 420 are spaced apart, that is, the first ground feeder 410 and the second ground feeder 420 have no overlapping part, and the first ground feeder 410 and the second ground feeder 420 have no overlapping parts.
- the two-fed ground member 420 separately transmits current signals, so that it can be ensured that there will be no mutual interference between the current signals.
- the third grounding member 430 and the fourth grounding member 440 are arranged at intervals, that is, the third grounding member 430 and the fourth grounding member 440 have no overlapping parts, and the third grounding member 430 and the fourth grounding member 440 are separate The transmission of current signals, in this way, can ensure that there will be no mutual interference between the current signals.
- the antenna module 10 further includes a third radiator 230 and a fourth radiator 240, the first radiator 210, the second radiator 220, the third radiator 230, and the fourth radiator 240 are arranged at intervals, and are arranged in a cross arrangement to form a first gap A1 and a second gap A2.
- the first power feeder 510 is at least partially disposed directly opposite to the first gap A1
- the second power feeder 520 is at least partially disposed. It is arranged directly opposite to the second gap A2.
- the first radiator 210, the second radiator 220, the third radiator 230, and the fourth radiator 240 are all metal patches, and the patch array 200 is mirror-symmetrical structure.
- the first radiator 210, the second radiator 220, the third radiator 230, and the fourth radiator 240 form a mesh structure, and the power feeding part 500 corresponds to the first radiator 210 2.
- the gaps between the second radiator 220, the third radiator 230 and the fourth radiator 240 are arranged, and the power feeder 500 transmits current to the first radiator through coupling and feeding.
- the current signal on the feeder 500 is coupled to the first radiator 210, the second radiator 220, the third radiator 230, and the fourth radiator 240
- the current can be caused to flow between the first radiator 210, the second radiator 210, and the fourth radiator 240.
- the flow directions on the radiator 220, the third radiator 230, and the fourth radiator 240 are relatively uniform, so that the radiation performance of the antenna module 10 is relatively stable.
- the edge portion of the first radiator 210 close to the first feeder 510 has a plurality of first metalized vias 215 arranged in an array
- the second radiator 220 is close to the
- the edge portion of the second power feeder 520 has a plurality of second metallized vias 225 arranged in an array.
- the distance between two adjacent first metallized vias 215 remains the same, and the distance between two adjacent second metallized vias 225 remains the same.
- the first metalized via 215 and the second metalized via 225 are used to isolate the first radiator 210 and the second radiator 220, thereby preventing the first radiator 210 and the second radiator
- the radiators 220 generate mutual interference.
- one first metallized via 215 is provided with a ground feeder
- one second metallized via 225 is provided with a ground feeder
- the ground feeder is electrically connected to the first metalized via 215 , To electrically connect the first radiator 210 and the feeding ground 300.
- the ground feeding member is electrically connected to the second metallized via 225 to electrically connect the second radiator 220 and the ground feeding layer 300.
- Multiple ground feeders generate synchronous resonance, thereby generating a radio frequency signal in the second frequency band.
- the first radiator 210 may also have a first receiving groove 216 at an edge portion away from the first power feeder 510, and the second radiator 220 is away from the second power feeder 520 There is a second receiving groove 226 at the edge portion of the second receiving groove 226, and the opening direction of the first receiving groove 216 and the opening direction of the second receiving groove 226 deviate from each other.
- the first receiving groove 216 may be a rectangular groove or an arc-shaped groove.
- the second receiving groove 226 may be a rectangular groove or an arc-shaped groove.
- the first receiving groove 216 is located at the edge of the first radiator 210 away from the power feeding part 500, and the first receiving groove 216 penetrates the edge of the first radiator 210, and the second receiving groove 226 is located at the second radiator 220 away from the power feeding.
- the edge portion of the portion 500, and the second receiving groove 226 penetrates the edge portion of the second radiator 220.
- the opening direction of the first accommodating groove 216 and the opening direction of the second accommodating groove 226 are deviated from each other, and the sizes of the first accommodating groove 216 and the second accommodating groove 226 are kept the same, so that the current signal of the feeder 500 can be coupled to the first When the radiator 210 and the second radiator 220 are coupled, the current signal generated by the coupling is more evenly distributed on the first radiator 210 and the second radiator 220, thereby helping to improve the radiation performance of the antenna module 10.
- the first radiator 210 may also have a first curved groove 217 in the middle portion away from the first feeder 510, and the second radiator 220 may be away from the second feeder.
- the middle part of the 520 has a second curved groove 227, and the opening direction of the first curved groove 217 and the opening direction of the second curved groove 227 deviate from each other.
- the curved groove may be a C-shaped groove, a U-shaped groove, a broken line-shaped groove, and the like.
- the first curved groove 217 is located in the middle part of the first radiator 210
- the second curved groove 227 is positioned in the middle part of the second radiator 220, and the opening directions of the first curved groove 217 and the second curved groove 227 deviate from each other .
- the feeding part 500 is coupled to the first radiator 210 and the second radiator 220
- the current signal on the upper side is transmitted in a loop, which helps to extend the transmission path of the current, and thereby can broaden the bandwidth of the antenna module 10 for receiving and sending radio frequency signals.
- the first radiator 210 and the second radiator 220 are arranged in mirror symmetry, which can ensure that the performance of the first radiator 210 and the second radiator 220 are consistent, so that the radiation performance of the antenna module 10 can be relatively stable.
- the antenna module 10 provided by the embodiment of the present application shares at least a part of the structure of the first grounding member 410 and the second grounding member 420, so that the thickness of the antenna module 10 can be reduced, so that the thickness reaches 0.85mm and has a low profile.
- the characteristics of the antenna module 10 are miniaturized.
- the first power feeder 510 and the second power feeder 520 are cross-insulated, and the current signal is fed through the first power feeder 510 and the second power feeder 520 to excite the patch array 200 and the grounding part 400 to generate resonance , Can achieve dual-band radio frequency signal transmission and reception, and can achieve dual polarization.
- the ground feeding part 400 includes a first part 401, a second part 402, a third part 403, a fourth part 404 and a fifth part 405, the first part 401, the second part 402 and The third part 403 is bent and connected in sequence, the first part 401, the fourth part 404, and the fifth part 405 are bent and connected in sequence, and the first part 401 is electrically connected to the patch array 200,
- the third part 403 is electrically connected to the feed formation 300
- the fifth part 405 is electrically connected to the feed formation 300
- the first part 401, the second part 402 and the third part 403 constitute The first ground feeder 410, the first part 401, the fourth part 404 and the fifth part 405 constitute the second ground feeder 420.
- the first ground feeding member 410 and the second ground feeding member 420 share the first part 401, and the first ground feeding member 410 is bent to form ,
- the second ground feeding member 420 is bent into
- the first part 401 is electrically connected to the patch array 200
- the third part 403 and the fifth part 405 are both electrically connected to the feed ground 300.
- the second part 402 and the fourth part 404 are kept orthogonal, the third part 403 and the fifth part 405 are kept parallel, and the second part 402 is kept parallel to the fourth part 404.
- a power feeder 510 and one of the second power feeder 520 are kept orthogonal, and the fourth portion 404 is held orthogonal to the other of the first power feeder 510 and the second power feeder 520 Orthogonality can make the antenna module 10 have dual polarization characteristics.
- the second part 402 and the fourth part 404 are both elongated patches, and the second part 402 includes a first electrical connection end 402a and a second electrical connection end 402b which are arranged oppositely.
- 404 includes a third electrical connection end 404a and a fourth electrical connection end 404b disposed oppositely, the first electrical connection end 402a and the third electrical connection end 404a are both electrically connected to the first part 401, and the second electrical connection end 404a
- the electrical connection end 402b is electrically connected to the third portion 403, and the fourth electrical connection end 404b is electrically connected to the fifth portion 405.
- the first electrical connection end 402a and the third electrical connection end 404a are electrically connected to the same part of the first part 401.
- the second part 402 has a long strip structure and includes opposite first and second ends.
- the first end has a first electrical connection end 402a
- the second end has a second electrical connection end 402b
- the first part 401 has a first electrical connection end 402a. It is connected between the first electrical connection terminal 402 a and the patch array 200
- the third portion 403 is electrically connected between the second electrical connection terminal 402 b and the feed ground 300.
- the intensity of the coupling current per unit area can be increased, so as to adjust the frequency band of the radio frequency signal sent and received by the ground feeding part 400, so that the ground feeding part 400 resonates in a preset frequency band.
- first part 401, the third part 403, and the fifth part 405 may also have a long strip structure or a columnar structure.
- the first part 401, the second part 402 and the third part 403 connected by bending and the first part 401, the fourth part 404 and the fifth part 405 connected by bending can extend the coupling of the power feeding part 500 to the ground feeding part 400.
- the transmission path of the coupling current increases the bandwidth of the antenna module 10 for sending and receiving radio frequency signals, and the thickness of the antenna module 10 can be reduced.
- the second part 402 and the fourth part 404 are both square patches or circular patches, and the second part 402 includes spaced first electrical connection terminals 402a and The second electrical connection end 402b, the fourth part 404 includes a third electrical connection end 404a and a fourth electrical connection end 404b arranged at intervals, and the first electrical connection end 402a and the third electrical connection end 404a are both It is electrically connected to the first part 401, the second electrical connection end 402 b is electrically connected to the third part 403, and the fourth electrical connection end 404 b is electrically connected to the fifth part 405.
- the second part 402 is a rectangular patch or a round patch, and can be a rectangular patch or a square patch, and the second part 402 has third electrical connection ends 404a and a third electrical connection end 404a and a second part 404 arranged at intervals.
- the first part 401 is electrically connected to the third electrical connection end 404a and the patch array 200
- the third part 403 is electrically connected to the fourth electrical connection end 404b and the feed ground 300.
- the area of the second part 402 can be increased.
- the floor area of the coupling current can be increased, so that the transmission of the coupling current is more uniform, and thus As a result, the performance of the antenna module 10 for receiving and transmitting radio frequency signals is relatively stable.
- the second portion 402 has a first through hole 402A
- the fourth portion 404 has a second through hole 404A
- the first through hole 402A avoids the first electrical connection terminal 402a and the second electrical connection
- the second through hole 404A avoids the third electrical connection end 404a and the fourth electrical connection end 404b.
- the first through hole 402A and the second through hole 404A may be circular holes, square holes, cross-shaped holes, or other forms of holes.
- the second part 402 is provided with one or more through holes.
- the coupling current can flow along the second part 402. Multiple transmission paths transmit, thereby extending the transmission path of the coupling current, thereby increasing the bandwidth of the antenna module 10 for transmitting and receiving radio frequency signals.
- the third electrical connection end 404a and the fourth electrical connection end 404b are arranged to avoid the through hole, so that a stable electrical connection relationship between the ground feeding portion 400 and the patch array 200 and the ground feeding layer 300 can be maintained.
- the antenna module 10 includes a first feeding port 550 and a second feeding port 560, and the first feeding member 510 includes a first section 511 and a second section 511 connected by bending. Section 512, the first section 511 is electrically connected to the first feed port 550, the first section 511 is disposed adjacent to the ground feeding portion 400, and the second section 512 is disposed adjacent to the patch array 200
- the second feeder 520 includes a third section 521 and a fourth section 522 that are connected by bending.
- the third section 521 is electrically connected to the second feed port 560, and the third section 521 is adjacent to the The feeding portion 400 is arranged, the fourth section 522 is arranged adjacent to the patch array 200, the second section 512 and the fourth section 522 remain orthogonal, and the patch array 200 and the feeding ground The polarization direction of the part 400 remains orthogonal.
- the first power feeder 510 is bent into an L shape
- the second power feeder 520 is also bent into an L shape
- the first section 511 is parallel to the third section 521
- the first section 511 and the third section 521 are cross-insulated.
- the antenna module 10 can achieve dual polarization characteristics.
- the first section 511 is perpendicular to the feed formation 300
- the third section 521 is perpendicular to the feed formation 300
- the first section 511 and the second section 512 remain vertical
- the The third section 521 and the fourth section 522 remain vertical.
- any one of the second segment 512 and the fourth segment 522 is arranged on the same layer as the patch array 200.
- the second segment 512 is arranged on the same layer as the patch array 200, and the fourth segment 522 and the second segment 512 are intersected and arranged at intervals, so that the current on the second segment 512 is coupled to the patch Array 200.
- the fourth section 522 is arranged in the same layer as the patch array 200, and the second section 512 and the fourth section 522 are intersected and arranged at intervals, so that the current on the fourth section 522 is coupled to the patch. Array 200.
- the second section 512 and the fourth section 522 are respectively located on different layers, and the second section 512 and the fourth section 522 are arranged at intervals.
- the second section 512 and the fourth section 522 are stacked and spaced along the thickness direction of the antenna module 10, and the second section 512 and the fourth section 522 are respectively located on different layers of the dielectric substrate 100.
- the antenna module 10 can have dual polarization characteristics.
- the second section 512 includes a first connecting portion 512a, a bent portion 512b, and a second connecting portion 512c that are connected in sequence, and the first connecting portion 512a is connected to the In the first section 511, the first connecting portion 512 a, the second connecting portion 512 c and the fourth section 522 are arranged in the same layer, and the bent portion 512 b avoids the fourth section 522.
- a part of the structure of the second section 512 spans from the surface of the fourth section 522, and the second section 512 and the fourth section 522 are kept cross-insulated.
- the second section 512 includes a first connecting portion 512a, The curved portion 512b and the second connecting portion 512c, the curved portion 512b is arranged corresponding to the partial structure of the fourth section 522, the curved portion 512b spans the surface of the fourth section 522, so that the first current signal fed by the first feeding port 550 There is no mutual interference with the second current signal fed by the second feeding port 560, which can make the radiation performance of the antenna module 10 relatively stable.
- An embodiment of the present application also provides an electronic device 1.
- the electronic device 1 includes a motherboard 20 and an antenna module 10 provided in any of the above embodiments.
- the antenna module 10 is electrically connected to the motherboard 20.
- the antenna module 10 is used to transmit and receive radio frequency signals under the control of the main board 20.
- the main board 20 includes an excitation source, the antenna module 10 is electrically connected to the excitation source, and the excitation source is used to provide a current signal for the antenna module 10.
- the electronic device 1 may be any device with communication function.
- tablet computers mobile phones, e-readers, remote controls, personal computers (Personal Computer, PC), notebook computers, in-vehicle devices, Internet TVs, wearable devices and other smart devices with communication functions.
- PC Personal Computer
- the main board 20 may be a PCB board of the electronic device 1.
- the main board 20 is electrically connected to the antenna module 10, and an excitation source is provided on the main board 20.
- the excitation source is used to generate an excitation signal, and the excitation signal is used to control the antenna module 10 to transmit and receive the first frequency band, Radio frequency signals in the second frequency band, the third frequency band, and the fourth frequency band.
- the excitation signal is used to control the antenna module 10 to transmit and receive radio frequency signals in the first frequency band and the second frequency band.
- the patch array 200 resonates in the third frequency band
- the ground feeding part 400 resonates in the fourth frequency band, that is, the antenna module 10 works in the third frequency band and the fourth frequency band.
- the excitation signal is used to control the antenna module 10 to transmit and receive radio frequency signals in the third frequency band and the fourth frequency band.
- the antenna module 10 provided by the embodiment of the present application shares at least a part of the structure of the first grounding member 410 and the second grounding member 420, so that the thickness of the antenna module 10 can be reduced, so that the thickness reaches 0.85mm and has a low profile.
- the characteristics of the antenna module 10 are miniaturized.
- the first power feeder 510 and the second power feeder 520 are cross-insulated, and the current signal is fed through the first power feeder 510 and the second power feeder 520 to excite the patch array 200 and the grounding part 400 to generate resonance , Can achieve dual-band radio frequency signal transmission and reception, and can achieve dual polarization.
- the electronic device 1 further includes a battery cover 30, which is spaced apart from the antenna module 10, and the battery cover 30 is at least partially located within the radiation direction range of the antenna module 10 to transmit and receive radio frequency signals.
- the antenna module 10 transmits and receives radio frequency signals through the battery cover 30 under the control of the main board 20, and the material of the battery cover 30 is any one or more of plastic, glass, sapphire and ceramic.
- the battery cover 30 in the structural arrangement of the electronic device 1, at least part of the structure of the battery cover 30 is located within the preset direction range of the antenna module 10 to transmit and receive radio frequency signals. Therefore, the battery cover 30 will also affect the radiation characteristics of the antenna module 10. influences. For this reason, the radio frequency signals sent and received by the antenna module 10 can be transmitted through the battery cover 30, so that the antenna module 10 can have a stable radiation performance in the structural arrangement of the electronic device 1.
- the battery cover 30 does not block the transmission of radio frequency signals, and the battery cover 30 may be one or a combination of plastic, glass, sapphire, and ceramic.
- main board 20 is located on the side of the antenna module 10 facing away from the battery cover 30, and the main board 20 is used to direct the radio frequency signal emitted by the antenna module 10 toward the side of the battery cover 30 reflection.
- the main board 20 and the battery cover 30 are spaced apart, the battery cover 30 surrounds to form a accommodating space S, the main board 20 is located in the accommodating space S, and the antenna module 10 is electrically connected to the main board 20 ,
- the main board 20 is used to at least partially reflect the radio frequency signals of the first frequency band and the second frequency band emitted by the antenna module 10, so that the reflected first frequency band and the second frequency band
- the radio frequency signal is radiated to the free space through the battery cover 30;
- the main board 20 is also used to radiate from the free space through the battery cover 30 to the first frequency band and the second frequency band of the antenna module 10
- the radio frequency signal is reflected toward the radiation surface of the antenna module 10.
- the battery cover 30 includes a back plate 31 and a side plate 32 surrounding the back plate 31.
- the side plate 32 is located within the radiation direction range of the antenna module 10 for receiving and transmitting radio frequency signals.
- the side plate 32 can be used to perform spatial impedance matching on the radio frequency signals received and received by the antenna module 10.
- the structural arrangement of the antenna module 10 in the overall environment of the electronic device 1 can ensure the radiation effect of the antenna module 10 in the overall environment.
- the battery cover 30 includes a back plate 31 and a side plate 32 surrounding the back plate 31, and the back plate 31 is located within the radiation direction range of the antenna module 10 to transmit and receive radio frequency signals.
- the back plate 31 may be used to perform spatial impedance matching on the radio frequency signals transmitted and received by the antenna module 10. At this time, the antenna module is fully considered.
- the structural arrangement of the antenna module 10 in the entire environment of the electronic device 1 can ensure the radiation effect of the antenna module 10 in the entire environment.
- the battery cover 30 includes a back plate 31 and a side plate 32 surrounding the back plate 31, the antenna module 10 includes a first module 11 and a second module 12, the first The radiation surface of the module 11 faces the back plate 31, and the radiation surface of the second module 12 faces the side plate 32.
- the radiation directions of the first module 11 and the second module 12 are different, the radiation surface of the first module 11 faces the back plate 31, and the radiation surface of the second module 12 faces the side plate 32. Therefore, the directions in which the antenna module 10 transmits and receive radio frequency signals can be diversified.
- the antenna module 10 uses one direction to transmit and receive radio frequency signals and is blocked, it can use the other direction to transmit and receive radio frequency signals, so that the antenna module 10 can transmit and receive radio frequency signals. stable.
- the electronic device 1 further includes a screen 40, the screen 40 and the antenna module 10 are spaced apart, and the screen 40 is at least partly located in the radiation direction range of the antenna module 10 receiving and transmitting radio frequency signals Inside.
- the screen 40 can be used to perform spatial impedance matching on the radio frequency signals sent and received by the antenna module 10. At this time, full consideration is given to the effect of the antenna module 10 on the electronic device 1.
- the structure arrangement in the whole machine environment can ensure the radiation effect of the antenna module 10 in the whole machine environment.
- Fig. 19 is a schematic diagram of the return loss curve of each port of the 1 ⁇ 4 antenna array.
- the abscissa represents frequency, unit: GHz, and the ordinate represents return loss, unit: dB.
- the size of the 1 ⁇ 4 antenna array in this application is 20mm ⁇ 4.2mm ⁇ 0.85mm, and the thickness of the antenna array is 0.85mm.
- the four ports of the 1 ⁇ 4 antenna array are denoted as S5,5, S6,6, S7,7 and S8,8 respectively, and the corresponding return loss curves are 1, 2, 3 and 4 in turn.
- the return loss curve 1 corresponding to the antenna array port S5, 5 basically coincides with the return loss curve 3 corresponding to the antenna array port S7, 7; the return loss curve 2 corresponding to the antenna array port S6, 6 is the same as the antenna array
- the return loss curves 4 corresponding to ports S8 and 8 basically coincide.
- the frequency is 24.25GHz, and the corresponding return loss is -4.5106dB.
- the frequency is 24.25GHz, and the corresponding return loss is -11.179dB.
- the frequency is 40.412GHz, and the corresponding return loss is -8.9254dB.
- the 1 ⁇ 4 antenna array can cover the full frequency bands of n257, n258, n261 and n260 millimeter waves.
- the frequency range of S11 ⁇ -10dB is 23.6GHz ⁇ 41.6GHz, and the impedance bandwidth of 1 ⁇ 4 antenna array is 18GHz.
- FIG. 20 is a schematic diagram of the isolation curve between the patch unit ports of the 1 ⁇ 4 antenna array.
- the abscissa represents the frequency, the unit: GHz
- the ordinate represents the isolation, the unit: dB.
- the patch unit ports in the same antenna module are marked as S2,1, S5,3 and S4,6.
- the frequency is 24.25GHz
- the corresponding isolation is -17.593dB.
- the 1 ⁇ 4 antenna array can cover the full frequency bands of n257, n258, n261 and n260 millimeter waves.
- the isolation between the patch unit ports in the antenna module is relatively large, which can avoid mutual interference between adjacent patch units.
- Figure 21 is the V-polarized radiation gain pattern of the antenna module in the 24.25 GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 24.25GHz, and the peak gain reaches 9.22dB.
- Figure 22 is the V-polarized radiation gain pattern of the antenna module in the 26GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that at the resonance frequency of 26GHz, there is a great gain and directivity improvement, and the peak gain reaches 10.4dB.
- Figure 23 is the V-polarized radiation gain pattern of the antenna module in the 28GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that at the resonance frequency of 28GHz, there is a great gain and directivity improvement, and the peak gain reaches 10.9dB.
- Figure 24 is the V-polarized radiation gain pattern of the antenna module in the 29.5GHz band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that at the resonant frequency of 29.5GHz, there is a great gain and directivity improvement, and the peak gain reaches 11dB.
- Figure 25 is the V-polarized radiation gain pattern of the antenna module in the 37GHz band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 37GHz, and the peak gain reaches 11.8dB.
- Figure 26 is the V-polarized radiation gain pattern of the antenna module in the 39GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 39GHz, and the peak gain reaches 12.7dB.
- Figure 27 is the H-polarized radiation gain pattern of the antenna module in the 24.25GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 24.25GHz, and the peak gain reaches 9.23dB.
- Figure 28 is the H-polarized radiation gain pattern of the antenna module in the 26GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 26GHz, and the peak gain reaches 10.2dB.
- Figure 29 is the H-polarized radiation gain pattern of the antenna module in the 28GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 28GHz, and the peak gain reaches 10.4dB.
- Figure 30 is the H-polarized radiation gain pattern of the antenna module in the 29.5 GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that at the resonant frequency of 29.5GHz, there is a great gain and directivity improvement, and the peak gain reaches 10.3dB.
- Figure 31 is the H-polarized radiation gain pattern of the antenna module in the 37GHz band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 37GHz, and the peak gain reaches 12dB.
- Figure 32 is the H-polarized radiation gain pattern of the antenna module in the 39GHz frequency band.
- the z axis represents the radiation direction of the antenna module
- the xy axis represents the radiation angle of the antenna module relative to the main lobe direction. It can be seen that there is a great gain and directivity improvement at the resonance frequency of 39GHz, and the peak gain reaches 12.6dB.
- Figure 33 is a schematic diagram of the peak gain of the antenna module versus frequency.
- the abscissa represents the frequency in GHz, and the ordinate represents the peak gain.
- Curve 1 represents the peak gain curve in the H polarization direction
- curve 2 represents the peak gain curve in the V polarization direction.
- the 1 ⁇ 4 antenna array can cover the full frequency bands of n257, n258, n261 and n260 millimeter waves, and as the frequency increases from 22GHz to 41GHz, the peak gain of the antenna module gradually increases, and as the frequency increases from 41GHz to At 44GHz, the peak gain of the antenna module gradually decreases.
- the gain value of the antenna module is relatively large.
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Abstract
本申请提供一种天线模组及电子设备。天线模组包括介质基板、贴片阵列、馈地层、馈地部和馈电部,贴片阵列承载于介质基板,贴片阵列包括间隔设置的第一辐射体和第二辐射体;馈地层承载于介质基板,且馈地层与贴片阵列间隔设置;馈地部电连接贴片阵列和馈地层;馈电部包括交叉绝缘设置的第一馈电件和第二馈电件,第一馈电件和第二馈电件分别用于馈入电流信号,以激发贴片阵列和馈地部谐振于对应的频段。本申请实施例提供的天线模组可以实现双频双极化。
Description
本申请涉及电子技术领域,尤其涉及一种天线模组及电子设备。
毫米波具有高载频、大带宽的特性,是实现5G超高数据传输速率的主要手段。由于毫米波频段的电磁波剧烈的空间损耗,利用毫米波频段的无线通信系统需要采用相控阵的架构。通过移相器使得各个阵元的相位按一定规律分布,从而形成高增益波束,并且通过相移的改变使得波束在一定空间范围内扫描。
发明内容
本申请提供一种天线模组及电子设备,可以实现双极化。
本申请提供一种天线模组,所述天线模组包括:
介质基板;
贴片阵列,所述贴片阵列承载于所述介质基板;
馈地层,所述馈地层承载于所述介质基板,且所述馈地层与所述贴片阵列间隔设置;
馈地部,所述馈地部电连接所述贴片阵列和所述馈地层;及
馈电部,所述馈电部包括交叉绝缘设置的第一馈电件和第二馈电件,所述第一馈电件和所述第二馈电件分别用于馈入电流信号,以激发所述贴片阵列和所述馈地部谐振于对应的频段。
本申请实施例还提供一种电子设备,所述电子设备包括主板和如上任意实施例提供的天线模组,所述天线模组与所述主板电性连接,所述天线模组用于在所述主板的控制下收发射频信号。
为了更清楚地说明本申请实施方式的技术方案,下面将对实施方式中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本申请一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请一个实施例提供的天线模组的结构示意图;
图2是图1提供的天线模组的局部结构示意图;
图3是图2提供的天线模组在XY平面上的结构示意图;
图4是图2提供的天线模组在YZ平面上的结构示意图;
图5是本申请实施例提供的天线模组在XY平面上结构示意图;
图6是本申请实施例提供的天线模组的辐射体的一种结构示意图;
图7是本申请实施例提供的天线模组的辐射体的另一种结构示意图;
图8是本申请实施例提供的天线模组中馈地部的一种结构示意图;
图9是本申请实施例提供的天线模组中馈地部的另一种结构示意图;
图10是本申请实施例提供的天线模组中馈地部的又一种结构示意图;
图11是本申请实施例提供的天线模组中馈电部的一种结构示意图;
图12是图11的天线模组的馈电部在YZ平面上的一种结构示意图;
图13是图11的天线模组的馈电部在YZ平面上的另一种结构示意图;
图14是本申请实施例提供的电子设备的剖视图的一种结构示意图;
图15是本申请实施例提供的电子设备的剖视图的另一种结构示意图;
图16是本申请实施例提供的电子设备的剖视图的又一种结构示意图;
图17是本申请实施例提供的电子设备的剖视图的又一种结构示意图;
图18是本申请实施例提供的电子设备的剖视图的又一种结构示意图;
图19是1×4天线阵列各端口回波损耗的曲线示意图;
图20是1×4天线阵列的贴片单元端口之间的隔离度曲线示意图;
图21是天线模组在24.25GHz频段的V极化方向辐射增益方向图;
图22是天线模组在26GHz频段的V极化方向辐射增益方向图;
图23是天线模组在28GHz频段的V极化方向辐射增益方向图;
图24是天线模组在29.5GHz频段的V极化方向辐射增益方向图;
图25是天线模组在37GHz频段的V极化方向辐射增益方向图;
图26是天线模组在39GHz频段的V极化方向辐射增益方向图;
图27是天线模组在24.25GHz频段的H极化方向辐射增益方向图;
图28是天线模组在26GHz频段的H极化方向辐射增益方向图;
图29是天线模组在28GHz频段的H极化方向辐射增益方向图;
图30是天线模组在29.5GHz频段的H极化方向辐射增益方向图;
图31是天线模组在37GHz频段的H极化方向辐射增益方向图;
图32是天线模组在39GHz频段的H极化方向辐射增益方向图;
图33是天线模组不同极化方向的峰值增益随频率的变化曲线示意图。
本申请提供一种天线模组,所述天线模组包括:
介质基板;
贴片阵列,所述贴片阵列承载于所述介质基板;
馈地层,所述馈地层承载于所述介质基板,且所述馈地层与所述贴片阵列间隔设置;
馈地部,所述馈地部电连接所述贴片阵列和所述馈地层;及
馈电部,所述馈电部包括交叉绝缘设置的第一馈电件和第二馈电件,所述第一馈电件和所述第二馈电件分别用于馈入电流信号,以激发所述贴片阵列和所述馈地部谐振于对应的频段。
其中,所述第一馈电件用于馈入第一电流信号,所述第一电流信号耦合至所述贴片阵列,以激发所述贴片阵列谐振于第一频段,所述第一电流信号耦合至所述馈地部,以激发所述馈地部谐振于第二频段,所述第一频段不同于所述第二频段;所述第二馈电件用于馈入第二电流信号,所述第二电流信号耦合至所述贴片阵列,以激发所述贴片阵列谐振于第三频段,所述第二电流信号耦合至所述馈地部,以激发所述馈地部谐振于第四频段,所述第三频段不同于所述第四频段。
其中,所述第一频段的最小值大于所述第二频段的最大值,所述第三频段的最小值大于所述第四频段的最大值,所述第一频段、所述第二频段、所述第三频段和所述第四频段共同构成预设频段,所述预设频段至少包括3GPP毫米波全频段。
其中,所述天线模组包括第一馈电端口和第二馈电端口,所述第一馈电件包括弯折相连的第一段和第二段,所述第一段电连接于所述第一馈电端口,所述第一段邻近所述馈地部设置,所述第二段邻近所述贴片阵列设置,所述第二馈电件包括弯折相连的第三段和第四段,所述第三段电连接于所述第二馈电端口,所述第三段邻近所述馈地部设置,所述第四段邻近所述贴片阵列设置,所述第二段和所述第四段保持正交,所述贴片阵列和所述馈地部的极化方向保持正交。
其中,所述第一段垂直于所述馈地层,所述第三段垂直于所述馈地层,所述第一段和所述第二段保持垂直,所述第三段和所述第四段保持垂直。
其中,所述第二段和所述第四段分别位于不同层,且所述第二段和所述第四段间隔设置。
其中,所述第二段包括依次相连的第一连接部、弯曲部和第二连接部,所述第一连接部连接于所述 第一段,所述第一连接部、所述第二连接部和所述第四段同层设置,所述弯曲部避开所述第四段。
其中,所述第二段和所述第四段中的任意一个与所述贴片阵列同层设置。
其中,所述贴片阵列包括间隔设置的第一辐射体和第二辐射体,所述馈地部包括第一馈地件和第二馈地件,所述第一馈地件电连接于所述第一辐射体和所述馈地层,所述第二馈地件电连接于所述第一辐射体和所述馈地层;所述馈地部还包括第三馈地件和第四馈地件,所述第三馈地件电连接于所述第二辐射体和所述馈地层,所述第四馈地件电连接于所述第二辐射体和所述馈地层。
其中,所述第一馈地件和所述第二馈地件相连,且所述第一馈地件和所述第二馈地件至少共用部分结构;或者,所述第一馈地件和所述第二馈地件间隔设置;所述第三馈地件和所述第四馈地件相连,且所述第三馈地件和所述第四馈地件至少共用部分结构;或者,所述第三馈地件和所述第四馈地件间隔设置。
其中,所述贴片阵列还包括第三辐射体和第四辐射体,所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体均间隔设置,且交叉排布形成第一缝隙和第二缝隙,所述第一馈电件至少部分正对所述第一缝隙设置,所述第二馈电件至少部分正对所述第二缝隙设置。
其中,所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体均为金属贴片,且所述贴片阵列为镜像对称结构。
其中,所述第一辐射体靠近所述第一馈电件的边缘部位具有多个阵列排布的第一金属化过孔,所述第二辐射体靠近所述第二馈电件的边缘部位具有多个阵列排布的第二金属化过孔。
其中,所述第一辐射体背离所述第一馈电件的边缘部位具有第一收容槽,所述第二辐射体背离所述第二馈电件的边缘部位具有第二收容槽,所述第一收容槽的开口方向与所述第二收容槽的开口方向相互背离。
其中,所述第一辐射体背离所述第一馈电件的中间部位具有第一弯曲形槽,所述第二辐射体背离所述第二馈电件的中间部位具有第二弯曲形槽,所述第一弯曲形槽的开口方向与所述第二弯曲形槽的开口方向相互背离。
其中,所述馈地部包括第一部分、第二部分、第三部分、第四部分和第五部分,所述第一部分、所述第二部分和所述第三部分依次弯折相连,所述第一部分、所述第四部分和所述第五部分依次弯折相连,所述第一部分电连接于所述贴片阵列,所述第三部分电连接于所述馈地层,所述第五部分电连接于所述馈地层,所述第一部分、所述第二部分和所述第三部分构成所述第一馈地件,所述第一部分、所述第四部分和所述第五部分构成所述第二馈地件。
其中,所述第二部分与所述第四部分保持正交,所述第三部分和所述第五部分保持平行,所述第二部分与所述第一馈电件和所述第二馈电件中的一个保持正交,所述第四部分与所述第一馈电件和所述第二馈电件中的另一个保持正交。
其中,所述第二部分和所述第四部分均为长条状贴片、正方形贴片或者圆形贴片,所述第二部分包括相对设置的第一电连接端和第二电连接端,所述第四部分包括相对设置的第三电连接端和第四电连接端,所述第一电连接端和所述第三电连接端均电连接于所述第一部分,所述第二电连接端电连接于所述第三部分,所述第四电连接端电连接于所述第五部分。
其中,所述第二部分具有第一通孔,所述第四部分具有第二通孔,所述第一通孔避开所述第一电连接端和所述第二电连接端,所述第二通孔避开所述第三电连接端和所述第四电连接端。
其中,所述馈地层的尺寸为λ×λ,所述贴片阵列与所述馈地层之间的距离为λ/4,其中,所述λ为所述天线模组收发射频信号的波长。
其中,所述贴片阵列在所述介质基板上的投影位于所述馈地层在所述介质基板上的投影的范围内。
本申请还提供一种电子设备,其特征在于,所述电子设备包括主板和如前面任意一项所述的天线模组,所述主板包括激励源,所述天线模组与所述激励源电性连接,所述激励源用于为所述天线模组提供电流信号。
其中,所述电子设备还包括电池盖,所述电池盖与所述天线模组间隔设置,所述电池盖至少部分位 于所述天线模组收发射频信号的辐射方向范围内,所述天线模组在所述主板的控制下透过所述电池盖收发射频信号,所述电池盖的材质为塑料、玻璃、蓝宝石和陶瓷中的任意一种或者多种。
其中,所述主板位于所述天线模组背离所述电池盖的一侧,所述主板用于将所述天线模组发出的射频信号朝向所述电池盖的一侧反射。
其中,所述电池盖包括背板和环绕所述背板的侧板,所述侧板位于所述天线模组收发射频信号的辐射方向范围内。
其中,所述电池盖包括背板和环绕所述背板的侧板,所述背板位于所述天线模组收发射频信号的辐射方向范围内。
其中,所述电池盖包括背板和环绕所述背板的侧板,所述天线模组包括第一模组和第二模组,所述第一模组的辐射面朝向所述背板,所述第二模组的辐射面朝向所述侧板。
其中,所述电子设备还包括屏幕,所述屏幕与所述天线模组间隔设置,所述屏幕至少部分位于所述天线模组收发射频信号的辐射方向范围内。
下面将结合本申请实施方式中的附图,对本申请实施方式中的技术方案进行清楚、完整地描述,显然,所描述的实施方式仅仅是本申请一部分实施方式,而不是全部的实施方式。基于本申请中的实施方式,本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施方式,都属于本申请保护的范围。需要特别说明的是,本申请中出现的“第一”、“第二”等词汇仅用于对部件的名称进行区分,既不表示数量的多少,也不表示出现的先后顺序。
请一并参阅图1、图2、图3和图4,为了便于清楚的观察到天线模组的内部结构,图2、图3和图4中仅以一个天线模组为例进行示例,且将介质基板100省略。本申请实施例提供的天线模组10包括介质基板100、贴片阵列200、馈地层300、馈地部400和馈电部500,所述贴片阵列200承载于所述介质基板100;所述馈地层300承载于所述介质基板100,且所述馈地层300与所述贴片阵列200间隔设置;所述馈地部400电连接所述贴片阵列200和所述馈地层300;所述馈电部500包括交叉绝缘设置的第一馈电件510和第二馈电件520,所述第一馈电件510和所述第二馈电件520分别用于馈入电流信号,以激发所述贴片阵列200和所述馈地部400谐振于对应的频段。具体的,所述第一馈电件510和所述第二馈电件520分别用于馈入不同的电流信号,可以激发所述贴片阵列200和所述馈地部400谐振于不同的频段,从而可以实现双频双极化。所述第一馈电件510和所述第二馈电件520馈入相同的电流信号,可以激发所述贴片阵列200和所述馈地部400谐振于相同的频段,从而可以增强信号强度。
其中,天线模组10可以为毫米波模组。天线模组10用于收发预设频段的毫米波射频信号。所述天线模组10可以采用高密度互连(High Density Interconnector,HDI)工艺或者是IC载板工艺加工形成。所述介质基板100采用多层介质板压合形成,贴片阵列200、馈地层300、馈地部400和馈电部500均承载于介质基板100上,所述馈地层300和所述贴片阵列200间隔设置,所述馈地部400连接于馈地层300和贴片阵列200之间,所述馈地部400为弯折结构,可以延长电流传输路径,进而提升射频信号的带宽。同时,可以减小天线模组10的厚度。
贴片阵列200包括多个贴片单元200a,每个贴片单元200a构成一个天线辐射体。所述馈电部500延伸至邻近贴片阵列200的位置,且馈电部500延伸至邻近馈地部400的位置,从而便于使得馈电部500上的电流信号耦合至贴片阵列200和馈地部400上。其中,贴片单元200a可以为矩形、圆形、三角形、五边形、六边形等。可以理解的,所述贴片单元200a可以开设通孔,通孔可以为方形孔、圆形孔、十字架形孔,还可以为其他形式的孔。在一种实施方式中,所述贴片阵列200包括第一辐射体210和第二辐射体220,所述第一辐射体210和所述第二辐射体220均为金属贴片,且所述第一辐射体210和所述第二辐射体220为镜像对称设置。此时,馈电部500上的电流信号耦合至第一辐射体210和第二辐射体220时,可以使得电流在第一辐射体210和第二辐射体220上的流向较为均匀,可以使得天线模组10的辐射性能较为稳定。
具体的,所述第一馈电件510用于馈入第一电流信号,所述第一电流信号耦合至所述贴片阵列200,以激发所述贴片阵列200谐振于第一频段,所述第一电流信号耦合至所述馈地部400,以激发所述馈地 部400谐振于第二频段,所述第一频段可以与所述第二频段相同,也可以与所述第二频段不同。所述第二馈电件520用于馈入第二电流信号,所述第二电流信号耦合至所述贴片阵列200,以激发所述贴片阵列200谐振于第三频段,所述第二电流信号耦合至所述馈地部400,以激发所述馈地部400谐振于第四频段,所述第三频段可以与所述第四频段相同,也可以与第四频段不同。在一种实施方式中,当第一频段不同于第二频段,且第三频段不同于第四频段时,所述第一频段可以为高频频段,所述第二频段可以为低频频段。所述第三频段可以为高频频段,所述第四频段可以为低频频段。如此,便可以使得天线模组10实现多频段射频信号的收发。进一步的,所述第一频段的最小值大于所述第二频段的最大值,所述第三频段的最小值大于所述第四频段的最大值,所述第一频段、所述第二频段、所述第三频段和所述第四频段共同构成预设频段,所述预设频段至少包括3GPP毫米波全频段。
根据3GPP TS 38.101协议的规定,5G主要使用两段频率:FR1频段和FR2频段。FR1频段的频率范围是450MHz~6GHz,又叫sub-6GHz频段;FR2频段的频率范围是24.25GHz~52.6GHz,通常叫它毫米波(mm Wave)。3GPP 15版本规范了目前5G毫米波频段如下:n257(26.5~29.5GHz),n258(24.25~27.5GHz),n261(27.5~28.35GHz)和n260(37~40GHz)。第一频段可以为毫米波频段,此时,第二频段可以为sub-6GHz频段。第一频段和第二频段也可以均为毫米波频段,第一频段为高频毫米波频段,第二频段为低频毫米波频段。同样,第三频段可以为毫米波频段,此时,第四频段可以为sub-6GHz频段。第三频段和第四频段也可以均为毫米波频段,第三频段为高频毫米波频段,第四频段为低频毫米波频段。
进一步的,所述第一馈电件510和所述第二馈电件520交叉绝缘设置,当第一馈电件510与第二馈电件520保持正交时,第一馈电件510上的电流方向和第二馈电件520上的电流方向保持正交,此时,天线模组10具有双极化特性。
在一种实施方式中,所述贴片阵列200在所述介质基板100上的投影位于所述馈地层300在所述介质基板100上的投影的范围内。所述馈地层300的尺寸为λ×λ,所述贴片阵列200与所述馈地层300之间的距离为λ/4,其中,所述λ为所述天线模组10收发射频信号的波长。
具体的,所述λ为固定频率的波长,当天线模组10工作于第一频段和第二频段时,所述固定频率为所述第一频段的中心频率和所述第二频段的中心频率的中间值。当天线模组10工作于第三频段和第四频段时,所述固定频率为所述第三频段的中心频率和所述第四频段的中心频率的中间值。当馈地层300的尺寸满足λ×λ,贴片阵列200与馈地层300之间的距离满足λ/4时,天线模组10可以达到较高的辐射性能。也就是说,天线模组10的工作频率与天线模组10的结构尺寸紧密相关,不同结构尺寸的天线模组10可以影响到天线模组10的工作频率,还可以影响天线模组10的辐射性能。
所述馈地部400包括第一馈地件410和第二馈地件420,所述第一馈地件410电连接于所述第一辐射体210和所述馈地层300,所述第二馈地件420电连接于所述第一辐射体210和所述馈地层300。所述馈地部400还包括第三馈地件430和第三馈地件430,所述第三馈地件430电连接于所述第二辐射体220和所述馈地层300,所述第四馈地层电连接于所述第二辐射体220和所述馈地层300。
在一种实施方式中,所述第一馈地件410和所述第二馈地件420相连且至少共用部分结构,第一馈电件510馈入的第一电流信号可经过第一辐射体210、第一馈地件410传输至馈地层300。第二馈电件520馈入的第二电流信号可经过第一辐射体210、第一馈地件410传输至馈地层300。也就是说,第一馈地件410和第二馈地件420同时电连接于同一个辐射体,从而在辐射体和馈地层300之间形成至少两条回路,有助于提升天线模组10的稳定性。同样,第三馈地件430和第四馈地件440也同时电连接于同一个辐射体,从而在辐射体和馈地层300之间形成至少两条回路,有助于提升天线模组10的稳定性。
在另一种实施方式中,第一馈地件410和第二馈地件420间隔设置,即第一馈地件410和第二馈地件420无重叠部分,第一馈地件410和第二馈地件420单独传输电流信号,如此,可以确保电流信号之间不会产生相互的干扰。同样,第三馈地件430和第四馈地件440间隔设置,即第三馈地件430和第四馈地件440无重叠部分,第三馈地件430和第四馈地件440单独传输电流信号,如此,可以确保电流信号之间不会产生相互的干扰。
所述天线模组10还包括第三辐射体230和第四辐射体240,所述第一辐射体210、所述第二辐射体220、所述第三辐射体230和所述第四辐射体240均间隔设置,且交叉排布形成第一缝隙A1和第二缝隙A2,所述第一馈电件510至少部分正对所述第一缝隙A1设置,所述第二馈电件520至少部分正对所述第二缝隙A2设置。
具体的,所述第一辐射体210、所述第二辐射体220、所述第三辐射体230和所述第四辐射体240均为金属贴片,且所述贴片阵列200为镜像对称结构。所述第一辐射体210、所述第二辐射体220、所述第三辐射体230和所述第四辐射体240形成网状结构,所述馈电部500对应所述第一辐射体210、所述第二辐射体220、所述第三辐射体230和所述第四辐射体240之间的间隙设置,馈电部500通过耦合馈电的方式将电流传输至所述第一辐射体210、所述第二辐射体220、所述第三辐射体230和所述第四辐射体240,以使得所述第一辐射体210、所述第二辐射体220、所述第三辐射体230和所述第四辐射体240产生谐振。此时,馈电部500上的电流信号耦合至第一辐射体210、第二辐射体220、第三辐射体230和第四辐射体240时,可以使得电流在第一辐射体210、第二辐射体220、第三辐射体230和第四辐射体240上的流向较为均匀,进而使得天线模组10的辐射性能较为稳定。
请继续参阅图5,所述第一辐射体210靠近所述第一馈电件510的边缘部位具有多个阵列排布的第一金属化过孔215,所述第二辐射体220靠近所述第二馈电件520的边缘部位具有多个阵列排布的第二金属化过孔225。
其中,相邻两个第一金属化过孔215之间的距离保持一致,相邻两个第二金属化过孔225之间的距离保持一致。所述第一金属化过孔215和所述第二金属化过孔225用于对所述第一辐射体210和所述第二辐射体220形成隔离,从而防止第一辐射体210和第二辐射体220产生相互的干扰。
在一种实施方式中,一个第一金属化过孔215对应设置一个馈地件,一个第二金属化过孔225对应设置一个馈地件,馈地件电连接于第一金属化过孔215,以将第一辐射体210和馈地层300电连接。馈地件电连接于第二金属化过孔225,以将第二辐射体220和馈地层300电连接。多个馈地件产生同步的谐振,从而产生第二频段的射频信号。
请继续参阅图6,所述第一辐射体210还可以背离所述第一馈电件510的边缘部位具有第一收容槽216,所述第二辐射体220背离所述第二馈电件520的边缘部位具有第二收容槽226,所述第一收容槽216的开口方向与所述第二收容槽226的开口方向相互背离。
其中,第一收容槽216可以为矩形槽,也可以为弧形槽。第二收容槽226可以为矩形槽,也可以为弧形槽。第一收容槽216位于第一辐射体210背离馈电部500的边缘部位,且第一收容槽216贯穿第一辐射体210的边缘部位,第二收容槽226位于第二辐射体220背离馈电部500的边缘部位,且第二收容槽226贯穿第二辐射体220的边缘部位。第一收容槽216的开口方向和第二收容槽226的开口方向相互背离,且第一收容槽216和第二收容槽226的大小保持一致,可以使得馈电部500的电流信号耦合至第一辐射体210和第二辐射体220时,耦合产生的电流信号在第一辐射体210和第二辐射体220上的分布较为均匀,从而有助于改善天线模组10的辐射性能。
请继续参阅图7,所述第一辐射体210还可以背离所述第一馈电件510的中间部位具有第一弯曲形槽217,所述第二辐射体220背离所述第二馈电件520的中间部位具有第二弯曲形槽227,所述第一弯曲形槽217的开口方向与所述第二弯曲形槽227的开口方向相互背离。
其中,弯曲形槽可以为C形槽,U形槽,折线形槽等。第一弯曲形槽217位于第一辐射体210的中间部位,第二弯曲形槽227位于第二辐射体220的中间部位,第一弯曲形槽217和第二弯曲形槽227的开口方向相互背离。由于第一弯曲形槽217位于第一辐射体210的中间位置,第二弯曲形槽227位于第二辐射体220的中间位置,馈电部500耦合至第一辐射体210和第二辐射体220上的电流信号呈环形传输,有助于延长电流的传输路径,进而可以拓宽天线模组10收发射频信号的带宽。第一辐射体210和第二辐射体220呈镜像对称设置,可以确保第一辐射体210和第二辐射体220的性能保持一致,从而可以使得天线模组10的辐射性能较为稳定。
本申请实施例提供的天线模组10,将第一馈地件410和第二馈地件420共用至少部分结构,从而可 以减小天线模组10的厚度,使得厚度达到0.85mm,具有低剖面的特性,实现天线模组10的小型化。且将第一馈电件510和第二馈电件520交叉绝缘设置,通过第一馈电件510和第二馈电件520馈入电流信号,激发贴片阵列200和馈地部400产生谐振,可以实现双频段射频信号的收发,且可以实现双极化。
请继续参阅图8,所述馈地部400包括第一部分401、第二部分402、第三部分403、第四部分404和第五部分405,所述第一部分401、所述第二部分402和所述第三部分403依次弯折相连,所述第一部分401、所述第四部分404和所述第五部分405依次弯折相连,所述第一部分401电连接于所述贴片阵列200,所述第三部分403电连接于所述馈地层300,所述第五部分405电连接于所述馈地层300,所述第一部分401、所述第二部分402和所述第三部分403构成所述第一馈地件410,所述第一部分401、所述第四部分404和所述第五部分405构成所述第二馈地件420。
具体的,第一馈地件410和第二馈地件420共用第一部分401,第一馈地件410弯折呈
形,第二馈地件420弯折呈
形,第一部分401电连接于贴片阵列200,第三部分403和第五部分405均电连接于馈地层300,当第一馈电件510和第二馈电件520上的电流耦合至第一馈地件410和第二馈地件420上时,可以延长耦合电流在第一馈地件410和第二馈地件420上的传输路径,进而可以在提升天线模组10的带宽的情况下,进一步减小天线模组10的厚度。
在一种实施方式中,所述第二部分402与所述第四部分404保持正交,所述第三部分403和所述第五部分405保持平行,所述第二部分402与所述第一馈电件510和所述第二馈电件520中的一个保持正交,所述第四部分404与所述第一馈电件510和所述第二馈电件520中的另一个保持正交,可以使得天线模组10具有双极化的特性。
所述第二部分402和所述第四部分404均为长条状贴片,所述第二部分402包括相对设置的第一电连接端402a和第二电连接端402b,所述第四部分404包括相对设置的第三电连接端404a和第四电连接端404b,所述第一电连接端402a和所述第三电连接端404a均电连接于所述第一部分401,所述第二电连接端402b电连接于所述第三部分403,所述第四电连接端404b电连接于所述第五部分405。
在一种实施方式中,第一电连接端402a和第三电连接端404a电连接于第一部分401的同一部位。具体的,第二部分402呈长条形结构,包括相对的第一端和第二端,第一端具有第一电连接端402a,第二端具有第二电连接端402b,第一部分401电连接于第一电连接端402a和贴片阵列200之间,第三部分403电连接于第二电连接端402b和馈地层300之间。此时,可以增强单位面积上耦合电流的强度,以便于对馈地部400收发的射频信号的频段进行调节,使得馈地部400谐振于预设频段。
进一步的,第一部分401、第三部分403和第五部分405也可以呈长条形结构,还可以呈柱状结构。通过弯折相连的第一部分401、第二部分402和第三部分403以及弯折相连的第一部分401、第四部分404和第五部分405可以延长馈电部500耦合至馈地部400上的耦合电流的传输路径,从而提升天线模组10收发射频信号的带宽,且可以减小天线模组10的厚度。
请继续参阅图9和图10,所述第二部分402和所述第四部分404均为正方形贴片或者圆形贴片,所述第二部分402包括间隔设置的第一电连接端402a和第二电连接端402b,所述第四部分404包括间隔设置的第三电连接端404a和第四电连接端404b,且所述第一电连接端402a和所述第三电连接端404a均电连接于所述第一部分401,所述第二电连接端402b电连接于所述第三部分403,所述第四电连接端404b电连接于所述第五部分405。
具体的,在一种实施方式中,第二部分402为矩形贴片或者圆形贴片,可以为长方形贴片或者正方形贴片,第二部分402具有间隔设置的第三电连接端404a和第四电连接端404b,第一部分401电连接于第三电连接端404a和贴片阵列200,第三部分403电连接于第四电连接端404b和馈地层300。此时,可以增大第二部分402的面积,当馈电部500上的电流信号耦合至馈地部400上时,可以增大耦合电流的铺地面积,使得耦合电流的传输较为均匀,进而使得天线模组10收发射频信号的性能较为稳定。
所述第二部分402具有第一通孔402A,所述第四部分404具有第二通孔404A,所述第一通孔402A避开所述第一电连接端402a和所述第二电连接端402b,所述第二通孔404A避开所述第三电连接端404a和所述第四电连接端404b。其中,第一通孔402A和第二通孔404A可以为圆形孔,也可以为方形孔, 还可以为十字架形孔,还可以为其他形式的孔。
具体的,在本实施方式中,第二部分402开设有一个或者多个通孔,当馈电部500上的电流信号耦合至馈地部400上时,耦合电流在第二部分402上可以沿多个传输路径传输,从而可以延长耦合电流的传输路径,进而提升天线模组10收发射频信号的带宽。所述第三电连接端404a和所述第四电连接端404b避开所述通孔设置,可以使得馈地部400与贴片阵列200以及馈地层300之间维持稳定的电连接关系。
请继续参阅图11和图12,所述天线模组10包括第一馈电端口550和第二馈电端口560,所述第一馈电件510包括弯折相连的第一段511和第二段512,所述第一段511电连接于所述第一馈电端口550,所述第一段511邻近所述馈地部400设置,所述第二段512邻近所述贴片阵列200设置,所述第二馈电件520包括弯折相连的第三段521和第四段522,所述第三段521电连接于所述第二馈电端口560,所述第三段521邻近所述馈地部400设置,所述第四段522邻近所述贴片阵列200设置,所述第二段512和所述第四段522保持正交,所述贴片阵列200和所述馈地部400的极化方向保持正交。
在本实施方式中,所述第一馈电件510弯折呈L形,所述第二馈电件520也弯折呈L形,所述第一段511平行于所述第三段521,且所述第一段511和所述第三段521交叉绝缘设置。当第一段511与第三段521保持正交时,可以使得天线模组10实现双极化特性。进一步的,所述第一段511垂直于所述馈地层300,所述第三段521垂直于所述馈地层300,所述第一段511和所述第二段512保持垂直,所述第三段521和所述第四段522保持垂直。
进一步的,所述第二段512和所述第四段522中的任意一个与所述贴片阵列200同层设置。在一种实施方式中,第二段512与所述贴片阵列200同层设置,第四段522与第二段512交叉且间隔设置,以便于使得第二段512上的电流耦合至贴片阵列200上。在另一种实施方式中,第四段522与所述贴片阵列200同层设置,第二段512与第四段522交叉且间隔设置,以便于第四段522上的电流耦合至贴片阵列200上。
在另一种实施方式中,所述第二段512和所述第四段522分别位于不同层,且所述第二段512和所述第四段522间隔设置。
具体的,在本实施方式中,第二段512和第四段522沿天线模组10的厚度方向上层叠间隔设置,第二段512和第四段522分别位于介质基板100的不同层,当第二段512垂直于第四段522时,可以使得天线模组10具有双极化特性。
请继续参阅图13,在又一种实施方式中,所述第二段512包括依次相连的第一连接部512a、弯曲部512b和第二连接部512c,所述第一连接部512a连接于所述第一段511,所述第一连接部512a、所述第二连接部512c和所述第四段522同层设置,所述弯曲部512b避开所述第四段522。
在本实施方式中,第二段512的部分结构从第四段522的表面跨越,且第二段512与第四段522保持交叉绝缘设置,第二段512包括相连的第一连接部512a、弯曲部512b和第二连接部512c,弯曲部512b对应第四段522的部分结构设置,弯曲部512b跨越第四段522的表面,从而使得由第一馈电端口550馈入的第一电流信号和由第二馈电端口560馈入的第二电流信号不会产生相互的干扰,可以使得天线模组10的辐射性能较为稳定。
请继续参阅图14,本申请实施例还提供一种电子设备1,所述电子设备1包括主板20和如上任意实施例提供的天线模组10,所述天线模组10与所述主板20电性连接,所述天线模组10用于在所述主板20的控制下收发射频信号。
具体的,所述主板20包括激励源,所述天线模组10与所述激励源电性连接,所述激励源用于为所述天线模组10提供电流信号。
其中,所述电子设备1可以是任何具备通信功能的设备。例如:平板电脑、手机、电子阅读器、遥控器、个人计算机(Personal Computer,PC)、笔记本电脑、车载设备、网络电视、可穿戴设备等具有通信功能的智能设备。
其中,所述主板20可以为电子设备1的PCB板。所述主板20和所述天线模组10电连接,主板20上设置有激励源,所述激励源用于产生激励信号,所述激励信号用于控制天线模组10收发所述第一频 段、所述第二频段、所述第三频段和所述第四频段的射频信号。
具体的,当馈电部500馈入第一电流信号时,贴片阵列200谐振于第一频段,馈地部400谐振于第二频段,即天线模组10工作于第一频段和第二频段,此时,所述激励信号用于控制天线模组10收发所述第一频段和所述第二频段的射频信号。当馈电部500馈入第二电流信号时,贴片阵列200谐振于第三频段,馈地部400谐振于第四频段,即天线模组10工作于第三频段和第四频段,此时,所述激励信号用于控制天线模组10收发所述第三频段和所述第四频段的射频信号。
本申请实施例提供的天线模组10,将第一馈地件410和第二馈地件420共用至少部分结构,从而可以减小天线模组10的厚度,使得厚度达到0.85mm,具有低剖面的特性,实现天线模组10的小型化。且将第一馈电件510和第二馈电件520交叉绝缘设置,通过第一馈电件510和第二馈电件520馈入电流信号,激发贴片阵列200和馈地部400产生谐振,可以实现双频段射频信号的收发,且可以实现双极化。
所述电子设备1还包括电池盖30,所述电池盖30与所述天线模组10间隔设置,所述电池盖30至少部分位于所述天线模组10收发射频信号的辐射方向范围内,所述天线模组10在所述主板20的控制下透过所述电池盖30收发射频信号,所述电池盖30的材质为塑料、玻璃、蓝宝石和陶瓷中的任意一种或者多种。
具体的,在电子设备1的结构排布中,电池盖30至少部分结构位于天线模组10收发射频信号的预设方向范围内,因此,电池盖30也会对天线模组10的辐射特性产生影响。为此,天线模组10收发的射频信号可以透过电池盖30传输,可以使得天线模组10在电子设备1的结构排布中具有稳定的辐射性能。也就是说,电池盖30不会阻挡射频信号的传输,电池盖30可以为塑料、玻璃、蓝宝石和陶瓷中的一种或多种的组合。
进一步的,所述主板20位于所述天线模组10背离所述电池盖30的一侧,所述主板20用于将所述天线模组10发出的射频信号朝向所述电池盖30的一侧反射。
所述主板20与所述电池盖30间隔设置,所述电池盖30围设形成收容空间S,所述主板20位于所述收容空间S内,所述天线模组10电连接于所述主板20,所述主板20至少部分用于反射所述天线模组10发出的所述第一频段及所述第二频段的射频信号,以使得经过反射后的所述第一频段及所述第二频段的射频信号透过所述电池盖30辐射至自由空间;所述主板20还用于将从自由空间透过所述电池盖30辐射至所述天线模组10的第一频段及第二频段的射频信号朝向所述天线模组10的辐射面反射。
请继续参阅图15,所述电池盖30包括背板31和环绕所述背板31的侧板32,所述侧板32位于所述天线模组10收发射频信号的辐射方向范围内。
具体的,当所述天线模组10的辐射方向朝向所述电池盖30的侧板32时,可以采用侧板32对天线模组10收发的射频信号进行空间阻抗匹配,此时,充分考虑了天线模组10在电子设备1的整机环境中的结构排布,如此便可以保证天线模组10在整机环境中的辐射效果。
请继续参阅图16,所述电池盖30包括背板31和环绕所述背板31的侧板32,所述背板31位于所述天线模组10收发射频信号的辐射方向范围内。
具体的,当所述天线模组10朝向所述电池盖30的背板31时,可以采用背板31对天线模组10收发的射频信号进行空间阻抗匹配,此时,充分考虑了天线模组10在电子设备1的整机环境中的结构排布,如此便可以保证天线模组10在整机环境中的辐射效果。
请继续参阅图17,所述电池盖30包括背板31和环绕所述背板31的侧板32,所述天线模组10包括第一模组11和第二模组12,所述第一模组11的辐射面朝向所述背板31,所述第二模组12的辐射面朝向所述侧板32。
具体的,在本实施方式中,第一模组11和第二模组12的辐射方向不同,第一模组11的辐射面朝向背板31,第二模组12的辐射面朝向侧板32,从而可以使得天线模组10收发射频信号的方向多样化,当天线模组10采用一个方向收发射频信号受到遮挡时,可以采用另一个方向收发射频信号,从而使得天线模组10收发射频信号较为稳定。
请继续参阅图18,所述电子设备1还包括屏幕40,所述屏幕40与所述天线模组10间隔设置,所 述屏幕40至少部分位于所述天线模组10收发射频信号的辐射方向范围内。
具体的,当所述天线模组10朝向所述屏幕40时,可以采用屏幕40对天线模组10收发的射频信号进行空间阻抗匹配,此时,充分考虑了天线模组10在电子设备1的整机环境中的结构排布,如此便可以保证天线模组10在整机环境中的辐射效果。
请继续参阅图19,图19是1×4天线阵列各端口回波损耗的曲线示意图。横坐标表示频率,单位:GHz,纵坐标表示回波损耗,单位:dB。本申请中1×4天线阵列的尺寸为20mm×4.2mm×0.85mm,天线阵列的厚度为0.85mm。在图中,1×4天线阵列的四个端口分别记为S5,5、S6,6、S7,7和S8,8,对应的回波损耗曲线依次为①、②、③和④。可以看出,天线阵列端口S5,5对应的回波损耗曲线①与天线阵列端口S7,7对应的回波损耗曲线③基本重合,天线阵列端口S6,6对应的回波损耗曲线②与天线阵列端口S8,8对应的回波损耗曲线④基本重合。在标记点1处,频率为24.25GHz,对应的回波损耗为-4.5106dB。在标记点2处,频率为24.25GHz,对应的回波损耗为-11.179dB。在标记点3处,频率为40.412GHz,对应的回波损耗为-8.9254dB。也就是说,1×4天线阵列可以覆盖n257、n258、n261和n260毫米波全频段。S11≤-10dB的频段区间为23.6GHz~41.6GHz,1×4天线阵列的阻抗带宽为18GHz。
请继续参阅图20,图20是1×4天线阵列的贴片单元端口之间的隔离度曲线示意图。横坐标表示频率,单位:GHz,纵坐标表示隔离度,单位:dB。在图中,同一个天线模组内的贴片单元端口记为S2,1、S5,3和S4,6,在标记点1处,频率为24.25GHz,对应的隔离度为-17.593dB。从图中可以看出,1×4天线阵列可以覆盖n257、n258、n261和n260毫米波全频段。且天线模组内贴片单元端口之间的隔离度较大,可以避免相邻贴片单元之间产生的相互干扰。
请继续参阅图21,图21是天线模组在24.25GHz频段的V极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点24.25GHz处具有极大的增益、方向性提升,峰值增益达到9.22dB。
请继续参阅图22,图22是天线模组在26GHz频段的V极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点26GHz处具有极大的增益、方向性提升,峰值增益达到10.4dB。
请继续参阅图23,图23是天线模组在28GHz频段的V极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点28GHz处具有极大的增益、方向性提升,峰值增益达到10.9dB。
请继续参阅图24,图24是天线模组在29.5GHz频段的V极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点29.5GHz处具有极大的增益、方向性提升,峰值增益达到11dB。
请继续参阅图25,图25是天线模组在37GHz频段的V极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点37GHz处具有极大的增益、方向性提升,峰值增益达到11.8dB。
请继续参阅图26,图26是天线模组在39GHz频段的V极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点39GHz处具有极大的增益、方向性提升,峰值增益达到12.7dB。
请继续参阅图27,图27是天线模组在24.25GHz频段的H极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点24.25GHz处具有极大的增益、方向性提升,峰值增益达到9.23dB。
请继续参阅图28,图28是天线模组在26GHz频段的H极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点26GHz处具有极大的增益、方向性提升,峰值增益达到10.2dB。
请继续参阅图29,图29是天线模组在28GHz频段的H极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点28GHz处具 有极大的增益、方向性提升,峰值增益达到10.4dB。
请继续参阅图30,图30是天线模组在29.5GHz频段的H极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点29.5GHz处具有极大的增益、方向性提升,峰值增益达到10.3dB。
请继续参阅图31,图31是天线模组在37GHz频段的H极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点37GHz处具有极大的增益、方向性提升,峰值增益达到12dB。
请继续参阅图32,图32是天线模组在39GHz频段的H极化辐射增益方向图。其中,z轴表示天线模组的辐射方向,xy轴表示天线模组相对于主瓣方向的辐射角度。可以看到,在谐振频点39GHz处具有极大的增益、方向性提升,峰值增益达到12.6dB。
请继续参阅图33,图33是天线模组的峰值增益随频率的变化曲线示意图。横坐标表示频率,单位:GHz,纵坐标表示峰值增益。曲线①表示H极化方向的峰值增益曲线,曲线②表示V极化方向的峰值增益曲线。可以看出,1×4天线阵列可以覆盖n257、n258、n261和n260毫米波全频段,且随着频率从22GHz增加到41GHz时,天线模组的峰值增益逐渐增加,随着频率从41GHz增加到44GHz时,天线模组的峰值增益逐渐减小,此外,可以看出天线模组的增益值都较大。
以上对本申请实施例进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。
Claims (28)
- 一种天线模组,其特征在于,所述天线模组包括:介质基板;贴片阵列,所述贴片阵列承载于所述介质基板;馈地层,所述馈地层承载于所述介质基板,且所述馈地层与所述贴片阵列间隔设置;馈地部,所述馈地部电连接所述贴片阵列和所述馈地层;及馈电部,所述馈电部包括交叉绝缘设置的第一馈电件和第二馈电件,所述第一馈电件和所述第二馈电件分别用于馈入电流信号,以激发所述贴片阵列和所述馈地部谐振于对应的频段。
- 如权利要求1所述的天线模组,其特征在于,所述第一馈电件用于馈入第一电流信号,所述第一电流信号耦合至所述贴片阵列,以激发所述贴片阵列谐振于第一频段,所述第一电流信号耦合至所述馈地部,以激发所述馈地部谐振于第二频段,所述第一频段不同于所述第二频段;所述第二馈电件用于馈入第二电流信号,所述第二电流信号耦合至所述贴片阵列,以激发所述贴片阵列谐振于第三频段,所述第二电流信号耦合至所述馈地部,以激发所述馈地部谐振于第四频段,所述第三频段不同于所述第四频段。
- 如权利要求2所述的天线模组,其特征在于,所述第一频段的最小值大于所述第二频段的最大值,所述第三频段的最小值大于所述第四频段的最大值,所述第一频段、所述第二频段、所述第三频段和所述第四频段共同构成预设频段,所述预设频段至少包括3GPP毫米波全频段。
- 如权利要求1-3任意一项所述的天线模组,其特征在于,所述天线模组包括第一馈电端口和第二馈电端口,所述第一馈电件包括弯折相连的第一段和第二段,所述第一段电连接于所述第一馈电端口,所述第一段邻近所述馈地部设置,所述第二段邻近所述贴片阵列设置,所述第二馈电件包括弯折相连的第三段和第四段,所述第三段电连接于所述第二馈电端口,所述第三段邻近所述馈地部设置,所述第四段邻近所述贴片阵列设置,所述第二段和所述第四段保持正交,所述贴片阵列和所述馈地部的极化方向保持正交。
- 如权利要求4所述的天线模组,其特征在于,所述第一段垂直于所述馈地层,所述第三段垂直于所述馈地层,所述第一段和所述第二段保持垂直,所述第三段和所述第四段保持垂直。
- 如权利要求4或者5所述的天线模组,其特征在于,所述第二段和所述第四段分别位于不同层,且所述第二段和所述第四段间隔设置。
- 如权利要求4或者5所述的天线模组,其特征在于,所述第二段包括依次相连的第一连接部、弯曲部和第二连接部,所述第一连接部连接于所述第一段,所述第一连接部、所述第二连接部和所述第四段同层设置,所述弯曲部避开所述第四段。
- 如权利要求4所述的天线模组,其特征在于,所述第二段和所述第四段中的任意一个与所述贴片阵列同层设置。
- 如权利要求1-8任意一项所述的天线模组,其特征在于,所述贴片阵列包括间隔设置的第一辐射体和第二辐射体,所述馈地部包括第一馈地件和第二馈地件,所述第一馈地件电连接于所述第一辐射体和所述馈地层,所述第二馈地件电连接于所述第一辐射体和所述馈地层;所述馈地部还包括第三馈地件和第四馈地件,所述第三馈地件电连接于所述第二辐射体和所述馈地层,所述第四馈地件电连接于所述第二辐射体和所述馈地层。
- 如权利要求9所述的天线模组,其特征在于,所述第一馈地件和所述第二馈地件相连,且所述第一馈地件和所述第二馈地件至少共用部分结构;或者,所述第一馈地件和所述第二馈地件间隔设置;所述第三馈地件和所述第四馈地件相连,且所述第三馈地件和所述第四馈地件至少共用部分结构;或者,所述第三馈地件和所述第四馈地件间隔设置。
- 如权利要求9所述的天线模组,其特征在于,所述贴片阵列还包括第三辐射体和第四辐射体,所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体均间隔设置,且交叉排布形成第一 缝隙和第二缝隙,所述第一馈电件至少部分正对所述第一缝隙设置,所述第二馈电件至少部分正对所述第二缝隙设置。
- 如权利要求11所述的天线模组,其特征在于,所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体均为金属贴片,且所述贴片阵列为镜像对称结构。
- 如权利要求9所述的天线模组,其特征在于,所述第一辐射体靠近所述第一馈电件的边缘部位具有多个阵列排布的第一金属化过孔,所述第二辐射体靠近所述第二馈电件的边缘部位具有多个阵列排布的第二金属化过孔。
- 如权利要求9所述的天线模组,其特征在于,所述第一辐射体背离所述第一馈电件的边缘部位具有第一收容槽,所述第二辐射体背离所述第二馈电件的边缘部位具有第二收容槽,所述第一收容槽的开口方向与所述第二收容槽的开口方向相互背离。
- 如权利要求9所述的天线模组,其特征在于,所述第一辐射体背离所述第一馈电件的中间部位具有第一弯曲形槽,所述第二辐射体背离所述第二馈电件的中间部位具有第二弯曲形槽,所述第一弯曲形槽的开口方向与所述第二弯曲形槽的开口方向相互背离。
- 如权利要求9-15任意一项所述的天线模组,其特征在于,所述馈地部包括第一部分、第二部分、第三部分、第四部分和第五部分,所述第一部分、所述第二部分和所述第三部分依次弯折相连,所述第一部分、所述第四部分和所述第五部分依次弯折相连,所述第一部分电连接于所述贴片阵列,所述第三部分电连接于所述馈地层,所述第五部分电连接于所述馈地层,所述第一部分、所述第二部分和所述第三部分构成所述第一馈地件,所述第一部分、所述第四部分和所述第五部分构成所述第二馈地件。
- 如权利要求16所述的天线模组,其特征在于,所述第二部分与所述第四部分保持正交,所述第三部分和所述第五部分保持平行,所述第二部分与所述第一馈电件和所述第二馈电件中的一个保持正交,所述第四部分与所述第一馈电件和所述第二馈电件中的另一个保持正交。
- 如权利要求16或者17所述的天线模组,其特征在于,所述第二部分和所述第四部分均为长条状贴片、正方形贴片或者圆形贴片,所述第二部分包括相对设置的第一电连接端和第二电连接端,所述第四部分包括相对设置的第三电连接端和第四电连接端,所述第一电连接端和所述第三电连接端均电连接于所述第一部分,所述第二电连接端电连接于所述第三部分,所述第四电连接端电连接于所述第五部分。
- 如权利要求18所述的天线模组,其特征在于,所述第二部分具有第一通孔,所述第四部分具有第二通孔,所述第一通孔避开所述第一电连接端和所述第二电连接端,所述第二通孔避开所述第三电连接端和所述第四电连接端。
- 如权利要求1-19任意一项所述的天线模组,其特征在于,所述馈地层的尺寸为λ×λ,所述贴片阵列与所述馈地层之间的距离为λ/4,其中,所述λ为所述天线模组收发射频信号的波长。
- 如权利要求1-19任意一项所述的天线模组,其特征在于,所述贴片阵列在所述介质基板上的投影位于所述馈地层在所述介质基板上的投影的范围内。
- 一种电子设备,其特征在于,所述电子设备包括主板和如权利要求1-21任意一项所述的天线模组,所述主板包括激励源,所述天线模组与所述激励源电性连接,所述激励源用于为所述天线模组提供电流信号。
- 如权利要求22所述的电子设备,其特征在于,所述电子设备还包括电池盖,所述电池盖与所述天线模组间隔设置,所述电池盖至少部分位于所述天线模组收发射频信号的辐射方向范围内,所述天线模组在所述主板的控制下透过所述电池盖收发射频信号,所述电池盖的材质为塑料、玻璃、蓝宝石和陶瓷中的任意一种或者多种。
- 如权利要求23所述的电子设备,其特征在于,所述主板位于所述天线模组背离所述电池盖的一侧,所述主板用于将所述天线模组发出的射频信号朝向所述电池盖的一侧反射。
- 如权利要求23所述的电子设备,其特征在于,所述电池盖包括背板和环绕所述背板的侧板,所述侧板位于所述天线模组收发射频信号的辐射方向范围内。
- 如权利要求23所述的电子设备,其特征在于,所述电池盖包括背板和环绕所述背板的侧板,所 述背板位于所述天线模组收发射频信号的辐射方向范围内。
- 如权利要求23所述的电子设备,其特征在于,所述电池盖包括背板和环绕所述背板的侧板,所述天线模组包括第一模组和第二模组,所述第一模组的辐射面朝向所述背板,所述第二模组的辐射面朝向所述侧板。
- 如权利要求22所述的电子设备,其特征在于,所述电子设备还包括屏幕,所述屏幕与所述天线模组间隔设置,所述屏幕至少部分位于所述天线模组收发射频信号的辐射方向范围内。
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CN112751193A (zh) * | 2019-10-31 | 2021-05-04 | Oppo广东移动通信有限公司 | 天线模组及电子设备 |
CN112421220B (zh) * | 2020-10-28 | 2023-05-26 | 维沃移动通信有限公司 | 天线结构及电子设备 |
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WO2022116125A1 (zh) * | 2020-12-04 | 2022-06-09 | 华为技术有限公司 | 一种天线模组及天线阵列 |
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CN113013616A (zh) * | 2021-02-24 | 2021-06-22 | Oppo广东移动通信有限公司 | 天线组件及电子设备 |
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CN116417780A (zh) * | 2021-12-29 | 2023-07-11 | 华为技术有限公司 | 天线结构、封装天线、芯片和电子设备 |
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