WO2021083219A1 - Antenna unit and electronic device - Google Patents

Antenna unit and electronic device Download PDF

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

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points

Definitions

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

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Abstract

Provided are an antenna unit and an electronic device in the embodiments of the present invention. The antenna unit comprises: a first insulator, M feed parts and first isolators arranged in the first insulator, a grounding body arranged at the bottom of the first insulator, M feed arms, a second insulator, a target radiator carried by the second insulator, and second isolators arranged in the first insulator and the second insulator, wherein the first isolators and the second isolators are electrically connected to the grounding body; the second isolators are arranged around the M feed parts; the M feed parts are arranged around the first isolators and are insulated from the grounding body, and each of the feed parts is electrically connected to a respective feed arm; the M feed arms are located between the first insulator and the second insulator and are arranged in a surrounding manner in a first order; each of the feed arms is coupled with the respective first isolator, the grounding body and the target radiator; and M is an integer greater than 1.

Description

天线单元及电子设备Antenna unit and electronic equipment
相关申请的交叉引用Cross-references to related applications
本申请要求于2019年10月31日提交中国国家知识产权局、申请号为201911052183.0、申请名称为“一种天线单元及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 201911052183.0, and the application name is "an antenna unit and electronic equipment" on October 31, 2019. The entire content is incorporated into this by reference. Applying.
技术领域Technical field
本发明实施例涉及通信技术领域，尤其涉及一种天线单元及电子设备。The embodiments of the present invention relate to the field of communication technology, and in particular to an antenna unit and electronic equipment.
背景技术Background technique
随着第五代移动通信(5th-Generation，5G)***的发展，以及电子设备的广泛应用，毫米波天线逐渐被应用在各种电子设备中，以满足用户日益增长的使用需求。With the development of the fifth-generation mobile communication (5th-Generation, 5G) system and the widespread application of electronic devices, millimeter-wave antennas are gradually being used in various electronic devices to meet the increasing use demands of users.
目前，电子设备中的毫米波天线主要通过天线封装(antenna in package，AiP)技术实现。例如，如图1所示，可以通过AiP技术，将工作波长为毫米波的阵列天线11、射频集成电路(radio frequency integrated circuit，RFIC)12、电源管理集成电路(power management integrated circuit，PMIC)13和连接器14封装成一个模块10，该模块10可以称为毫米波天线模组。其中，上述阵列天线中的天线可以为贴片天线、八木-宇田天线，或者偶极子天线等。Currently, millimeter wave antennas in electronic devices are mainly implemented through antenna in package (AiP) technology. For example, as shown in Figure 1, AiP technology can be used to integrate the array antenna 11, the radio frequency integrated circuit (RFIC) 12, and the power management integrated circuit (PMIC) 13 with a working wavelength of millimeter wave. And the connector 14 are packaged into a module 10, and the module 10 may be called a millimeter wave antenna module. Wherein, the antenna in the above-mentioned array antenna may be a patch antenna, a Yagi-Uda antenna, or a dipole antenna.
然而，由于上述阵列天线中的天线通常为窄带天线(例如上述列举的贴片天线等)，因此每个天线的覆盖频段有限，但是在5G***中规划的毫米波频段通常比较多，例如以28GHz为主的n257(26.5GHz-29.5GHz)频段和以39GHz为主的n260(37.0GHz-40.0GHz)频段等，因此传统的毫米波天线模组可能无法覆盖5G***中规划的主流的毫米波频段，从而导致电子设备的天线性能较差。However, because the antennas in the above-mentioned array antennas are usually narrowband antennas (such as the patch antennas listed above), the coverage frequency band of each antenna is limited, but the millimeter wave frequency bands planned in the 5G system are usually more, for example, 28GHz The main n257 (26.5GHz-29.5GHz) frequency band and the 39GHz main n260 (37.0GHz-40.0GHz) frequency band, etc., so the traditional millimeter wave antenna module may not be able to cover the mainstream millimeter wave frequency band planned in the 5G system , Resulting in poor antenna performance of electronic equipment.
发明内容Summary of the invention
本发明实施例提供一种天线单元及电子设备，以解决现有的电子设备的毫米波天线覆盖的频段较少，导致电子设备的天线性能较差的问题。The embodiments of the present invention provide an antenna unit and an electronic device to solve the problem that the millimeter wave antenna of the existing electronic device covers less frequency bands, resulting in poor antenna performance of the electronic device.
为了解决上述技术问题，本申请是这样实现的：In order to solve the above technical problems, this application is implemented as follows:
第一方面，本发明实施例提供了一种天线单元，该天线单元包括：第一绝缘体，设置在第一绝缘体中的M个馈电部和第一隔离体，设置在第一绝缘体底部的接地体，M个馈电臂，第二绝缘体，第二绝缘体承载的目标辐射体，以及设置在第一绝缘体和第二绝缘体中的第二隔离体；其中，第一隔离体和第二隔离体均与接地体电连接，第二隔离体围绕该M个馈电部设置，该M个馈电部围绕第一隔离体设置、且与接地体绝缘，每个馈电部分别与一个馈电臂电连接，该M个馈电臂位于第一绝缘体和第二绝缘体之间，且按照从第一顺序环绕设置，以及每个馈电臂均与第一隔离体、接地体和目标辐射体耦合，M为大于1的整数。In a first aspect, an embodiment of the present invention provides an antenna unit. The antenna unit includes: a first insulator, M feeders and a first insulator arranged in the first insulator, and a ground at the bottom of the first insulator. Body, M feed arms, a second insulator, a target radiator carried by the second insulator, and a second insulator arranged in the first insulator and the second insulator; wherein the first insulator and the second insulator are both It is electrically connected to the grounding body, the second isolator is arranged around the M power feeding parts, the M power feeding parts are arranged around the first isolator and are insulated from the ground body, and each feeding part is electrically connected to a feeding arm. Connected, the M feeding arms are located between the first insulator and the second insulator, and are arranged in a circle from the first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator, M Is an integer greater than 1.
第二方面，本发明实施例提供了一种电子设备，该电子设备包括上述第一方面中的天线单元。In a second aspect, an embodiment of the present invention provides an electronic device, which includes the antenna unit in the above-mentioned first aspect.
在本发明实施例中，天线单元可以包括：第一绝缘体，设置在第一绝缘体中的M个馈电部和第一隔离体，设置在第一绝缘体底部的接地体，M个馈电臂，第二绝缘体，第二绝缘体承载的目标辐射体，以及设置在第一绝缘体和第二绝缘体中的第二隔离体；其中，第一隔离体和第二隔离体均与接地体电连接，第二隔离体围绕该M个馈电部设置，该M个馈电部围绕第一隔离体设置、且与接地体绝缘，每个馈电部分别与一个馈电臂的第一端电连接，该M个馈电臂位于第一绝缘体和第二绝缘体之间，且按照第一顺序环绕设置，以及每个馈电臂均与第一隔离体、接地体和目标辐射体耦合，M为大于1的整数。通过该方案，由于第一隔离体和第二隔离体均与接地体电连接，且第二隔离体围绕M个馈电部设置，M个馈电部围绕第一隔离体设置，因此第一隔离体和接地体可以组成一个金属背腔，并且由于馈电臂可以与第一隔离体、接地体和目标辐射体耦合，即馈电臂可以与金属背腔(第一隔离体和接地体组成的)和目标辐射体耦合。如此，在馈电臂接收到交流信号的情况下，馈电臂可以与金属背腔和目标辐射体进行耦合，从而可以使得金属背腔和目标辐射体产生感应电流，进而可以使得馈电臂、金属背腔和目标辐射体均辐射一定频率的电磁波；并且，由于馈电臂与金属背腔和目标辐射体耦合产生的感应电流的电流路径可以有多个(例如从馈电臂到金属背腔再到馈电臂的电流路径，金属背腔上形成的电流路径，目标辐射体上形成的电流路径等)，因此馈电臂上的电流经由金属背腔和目标辐射体产生的电磁波的频率也可以有多个，如此可以使得天线单元覆盖多个的频段，从而可以增加天线单元的带宽。以及由于M个馈电臂按照第一顺序环绕设置，因此可以使得该M个馈电臂中的各个馈电臂之间的距离较大，如此可以减小该M个馈电臂之间的干扰，从而可以提高天线单元的端口的隔离度，进而可以进一步提高天线单元的性能。In the embodiment of the present invention, the antenna unit may include: a first insulator, M feeders and first insulators arranged in the first insulator, a grounding body arranged at the bottom of the first insulator, M feed arms, The second insulator, the target radiator carried by the second insulator, and the second insulator arranged in the first insulator and the second insulator; wherein the first insulator and the second insulator are both electrically connected to the ground, and the second insulator The insulators are arranged around the M power feeders, the M power feeders are arranged around the first insulator and are insulated from the ground body, and each power feeder is electrically connected to the first end of a power feeder arm. The two feeding arms are located between the first insulator and the second insulator, and are arranged around in the first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator, and M is an integer greater than 1. . With this solution, since both the first isolator and the second isolator are electrically connected to the grounding body, and the second isolator is arranged around the M power feeders, and the M power feeders are arranged around the first isolator, the first isolator is The body and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal backing cavity (the first isolating body and the grounding body are composed ) Is coupled to the target radiator. In this way, when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate induced current, which can make the feeding arm, Both the metal back cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feed arm and the metal back cavity and the target radiator (for example, from the feed arm to the metal back cavity). Then to the current path of the feed arm, the current path formed on the metal back cavity, the current path formed on the target radiator, etc.), so the frequency of the electromagnetic wave generated by the current on the feed arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit. And since the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
附图说明Description of the drawings
图1为本发明实施例提供的一种传统毫米波封装天线的结构示意图；FIG. 1 is a schematic structural diagram of a traditional millimeter wave package antenna provided by an embodiment of the present invention;
图2为本发明实施例提供的天线单元的***图之一；FIG. 2 is one of the exploded views of the antenna unit provided by the embodiment of the present invention;
图3为本发明实施例提供的天线单元的反射系数图；Fig. 3 is a reflection coefficient diagram of an antenna unit provided by an embodiment of the present invention;
图4为本发明实施例提供的天线单元的俯视图；4 is a top view of an antenna unit provided by an embodiment of the present invention;
图5为本发明实施例提供的天线单元的传输系数图；FIG. 5 is a diagram of transmission coefficients of an antenna unit provided by an embodiment of the present invention;
图6为本发明实施例提供的天线单元的***图之二；Fig. 6 is the second exploded view of the antenna unit provided by the embodiment of the present invention;
图7为本发明实施例提供的天线单元的剖视图；FIG. 7 is a cross-sectional view of an antenna unit provided by an embodiment of the present invention;
图8为本发明实施例提供的电子设备的硬件结构示意图；8 is a schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention;
图9为本发明实施例提供的天线单元的辐射方向图之一；FIG. 9 is one of the radiation patterns of the antenna unit provided by the embodiment of the present invention;
图10为本发明实施例提供的天线单元的辐射方向图之二；FIG. 10 is the second radiation pattern diagram of the antenna unit provided by the embodiment of the present invention;
图11为本发明实施例提供的电子设备的左视图。Fig. 11 is a left side view of an electronic device provided by an embodiment of the present invention.
附图标记说明：10—毫米波天线模组；11—工作波长为毫米波的阵列天线；12—RFIC；13—PMIC；14—连接器；20—天线单元；201—第一绝缘体；202—馈电部；203—第一隔离体；204—接地体；205—馈电臂；206—第二绝缘体；207—目标辐射体；208—第二隔离体；209—第三绝缘体；L1—第一对角线；L2—第二对角线；D1—对角线1；D2—对角线2；3—电子设备；30—壳体；31—第一边框；32—第二边框；33—第三边框；34—第四边框；35—地板；36—第一天线；37—第一凹槽。Description of Reference Signs: 10-millimeter wave antenna module; 11—array antenna with working wavelength of millimeter wave; 12—RFIC; 13—PMIC; 14—connector; 20—antenna unit; 201—first insulator; 202— Feeder; 203—first insulator; 204—grounding body; 205—feeding arm; 206—second insulator; 207—target radiator; 208—second insulator; 209—third insulator; L1—first Diagonal line; L2—second diagonal line; D1—diagonal line 1; D2—diagonal line 2; 3-electronic equipment; 30—shell; 31—first frame; 32—second frame; 33 —The third frame; 34—the fourth frame; 35—the floor; 36—the first antenna; 37—the first groove.
需要说明的是，本发明实施例中，附图所示的坐标系中的坐标轴相互正交。It should be noted that, in the embodiment of the present invention, the coordinate axes in the coordinate system shown in the drawings are orthogonal to each other.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.
本文中术语“和/或”，是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。本文中符号“/”表示关联对象是或者的关系，例如A/B表示A或者B。The term "and/or" in this article refers to an association relationship that describes associated objects, which means that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone These three situations. The symbol "/" in this document represents the relationship that the associated object is or, for example, A/B represents A or B.
本发明的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一绝缘体和第二绝缘体等是用于区别不同的绝缘体，而不是用于描述绝缘体的特定顺序。The terms "first" and "second" in the specification and claims of the present invention are used to distinguish different objects, rather than to describe a specific order of objects. For example, the first insulator and the second insulator are used to distinguish different insulators, rather than to describe a specific order of the insulators.
在本发明实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present invention, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiment of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.
在本发明实施例的描述中，除非另有说明，“多个”的含义是指两个或者两个以上，例如，多个天线单元是指两个或者两个以上的天线单元等。In the description of the embodiments of the present invention, unless otherwise specified, the meaning of “multiple” refers to two or more than two, for example, multiple antenna elements refers to two or more antenna elements, etc.
下面对本发明实施例中涉及的一些术语/名词进行解释说明。Some terms/nouns involved in the embodiments of the present invention will be explained below.
耦合：是指两个或两个以上的电路元件或电网络的输入与输出之间存在紧密配合与相互影响，并可以通过相互作用从一侧向另一侧传输能量。Coupling: refers to the close coordination and mutual influence between the input and output of two or more circuit elements or electrical networks, and energy can be transmitted from one side to the other through the interaction.
本发明实施例中的“耦合”可以用于指示发生耦合的部件(例如实施例中的M个馈电臂与第一隔离体和接地体，M个馈电臂与目标辐射体)在天线单元工作的情况下，这些部件可以耦合；在天线单元未工作的情况下，这些部件相互绝缘。The “coupling” in the embodiment of the present invention can be used to indicate that the components that are coupled (for example, the M feed arms and the first isolator and ground body in the embodiment, the M feed arms and the target radiator) are in the antenna unit. In the case of working, these components can be coupled; when the antenna unit is not working, these components are insulated from each other.
交流信号：是指电流的方向会发生变化的信号。AC signal: A signal that changes the direction of current.
低温共烧陶瓷(low temperature co-fired ceramic，LTCC)技术：是指一种将低温烧结陶瓷粉制成厚度精确而且致密的生瓷带，且在生瓷带上利用激光打孔、微孔注浆和精密导体浆料印刷等工艺制出所需要的电路图形，并将多个组件(例如电容、电阻、耦合器等)埋入多层陶瓷基板中，然后叠压在一起，在900℃下烧结，制成互不干扰的高密度电路或电路基板等的技术。该技术可以将电路小型化和高密度化，特别适用于高频通讯用组件。Low temperature co-fired ceramic (low temperature co-fired ceramic, LTCC) technology: refers to a kind of low temperature sintered ceramic powder into a precise and dense green ceramic tape, and the use of laser drilling, micro-hole injection on the green ceramic tape Processes such as printing paste and precise conductor paste to produce the required circuit patterns, and embed multiple components (such as capacitors, resistors, couplers, etc.) in a multilayer ceramic substrate, and then stack them together and sinter at 900°C , The technology of making high-density circuits or circuit boards that do not interfere with each other. This technology can miniaturize and increase the density of circuits, and is particularly suitable for high-frequency communication components.
多输入多输出(multiple-input multiple-output，MIMO)技术：是指一种在传输端(即发送端和接收端)使用多个天线发送信号或接收信号，以改善通信质量的技术。在该技术中，信号可以通过传输端的多个天线发送或者接收。Multiple-input multiple-output (MIMO) technology: refers to a technology that uses multiple antennas to send or receive signals at the transmitting end (that is, the transmitting end and the receiving end) to improve communication quality. In this technology, signals can be sent or received through multiple antennas at the transmitting end.
相对介电常数：用于表征介质材料的介电性质或极化性质的物理参数。Relative permittivity: A physical parameter used to characterize the dielectric properties or polarization properties of dielectric materials.
地板：是指电子设备中可以作为虚拟地的部分。例如电子设备中的印制电路板(printed circuit board，PCB)、金属边框(中框)或电子设备的显示屏等。Floor: refers to the part of electronic equipment that can be used as a virtual ground. For example, printed circuit board (PCB), metal frame (middle frame) or display screen of electronic equipment in electronic equipment.
本发明实施例提供一种天线单元及电子设备，该天线单元可以包括：第一绝缘体，设置在第一绝缘体中的M个馈电部和第一隔离体，设置在第一绝缘体底部的接地体，M个馈电臂，第二绝缘体，第二绝缘体承载的目标辐射体，以及设置在第一绝缘体和第二绝缘体中的第二隔离体；其中，第一隔离体和第二隔离体均与接地体电连接，第二隔离体围绕 该M个馈电部设置，该M个馈电部围绕第一隔离体设置、且与接地体绝缘，每个馈电部分别与一个馈电臂的第一端电连接，该M个馈电臂位于第一绝缘体和第二绝缘体之间，且按照第一顺序环绕设置，以及每个馈电臂均与第一隔离体、接地体和目标辐射体耦合，M为大于1的整数。通过该方案，由于第一隔离体和第二隔离体均与接地体电连接，且第二隔离体围绕M个馈电部设置，M个馈电部围绕第一隔离体设置，因此第一隔离体和接地体可以组成一个金属背腔，并且由于馈电臂可以与第一隔离体、接地体和目标辐射体耦合，即馈电臂可以与金属背腔(第一隔离体和接地体组成的)和目标辐射体耦合。如此，在馈电臂接收到交流信号的情况下，馈电臂可以与金属背腔和目标辐射体进行耦合，从而可以使得金属背腔和目标辐射体产生感应电流，进而可以使得馈电臂、金属背腔和目标辐射体均辐射一定频率的电磁波；并且，由于馈电臂与金属背腔和目标辐射体耦合产生的感应电流的电流路径可以有多个(例如从馈电臂到金属背腔再到馈电臂的电流路径，金属背腔上形成的电流路径，目标辐射体上形成的电流路径等)，因此馈电臂上的电流经由金属背腔和目标辐射体产生的电磁波的频率也可以有多个，如此可以使得天线单元覆盖多个的频段，从而可以增加天线单元的带宽。以及由于M个馈电臂按照第一顺序环绕设置，因此可以使得该M个馈电臂中的各个馈电臂之间的距离较大，如此可以减小该M个馈电臂之间的干扰，从而可以提高天线单元的端口的隔离度，进而可以进一步提高天线单元的性能。Embodiments of the present invention provide an antenna unit and electronic equipment. The antenna unit may include: a first insulator, M feeders and a first insulator arranged in the first insulator, and a grounding body arranged at the bottom of the first insulator , M feed arms, a second insulator, a target radiator carried by the second insulator, and a second insulator arranged in the first insulator and the second insulator; wherein the first insulator and the second insulator are both connected to The grounding body is electrically connected, the second isolator is arranged around the M feeding parts, the M feeding parts are arranged around the first isolator and are insulated from the grounding body, and each feeding part is connected to the first part of a feeding arm. One end is electrically connected, the M feeding arms are located between the first insulator and the second insulator, and are arranged in a first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator , M is an integer greater than 1. With this solution, since both the first isolator and the second isolator are electrically connected to the grounding body, and the second isolator is arranged around the M power feeders, and the M power feeders are arranged around the first isolator, the first isolator is The body and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal backing cavity (the first isolating body and the grounding body are composed ) Is coupled to the target radiator. In this way, when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate induced current, which can make the feeding arm, Both the metal back cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feed arm and the metal back cavity and the target radiator (for example, from the feed arm to the metal back cavity). Then to the current path of the feed arm, the current path formed on the metal back cavity, the current path formed on the target radiator, etc.), so the frequency of the electromagnetic wave generated by the current on the feed arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit. And since the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
本发明实施例提供的天线单元可以应用于电子设备，也可以应用于需要使用该天线单元的其它设备，具体可以根据实际使用需求确定，本发明实施例不作限定。下面以天线单元应用于电子设备为例，对本发明实施例提供的天线单元进行示例性的说明。The antenna unit provided in the embodiment of the present invention can be applied to electronic equipment, and can also be applied to other equipment that needs to use the antenna unit, and can be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention. The antenna unit provided in the embodiment of the present invention will be exemplarily described below by taking the antenna unit applied to an electronic device as an example.
下面结合各个附图对本发明实施例提供的天线单元进行示例性的说明。The antenna unit provided by the embodiment of the present invention will be exemplarily described below with reference to the various drawings.
如图2所示，天线单元20可以包括：第一绝缘体201，设置在第一绝缘体201中的M个馈电部202和第一隔离体203，设置在第一绝缘体201底部的接地体204，M个馈电臂205，第二绝缘体206，第二绝缘体206承载的目标辐射体207，以及设置在第一绝缘体201和第二绝缘体206中的第二隔离体208。As shown in FIG. 2, the antenna unit 20 may include: a first insulator 201, M feeders 202 and a first isolator 203 arranged in the first insulator 201, a ground body 204 arranged at the bottom of the first insulator 201, M feeding arms 205, a second insulator 206, a target radiator 207 carried by the second insulator 206, and a second insulator 208 arranged in the first insulator 201 and the second insulator 206.
其中，第一隔离体203和第二隔离体208可以与接地体204电连接，第二隔离体208可以围绕M个馈电部202设置，M个馈电部202可以围绕第一隔离体203设置、且与接地体204绝缘，每个馈电部可以分别与一个馈电臂电连接，该M个馈电臂205可以位于第一绝缘体201和第二绝缘体206之间，且按照第一顺序环绕设置，以及每个馈电臂205均可以与第一隔离体203、接地体204和目标辐射体207耦合，M为大于1的整数。Wherein, the first isolator 203 and the second isolator 208 may be electrically connected to the ground body 204, the second isolator 208 may be arranged around the M power feeding parts 202, and the M power feeding parts 202 may be arranged around the first isolator 203 , And insulated from the grounding body 204, each feeder can be electrically connected to a feeder arm, the M feeder arms 205 can be located between the first insulator 201 and the second insulator 206, and surround according to the first order Setting, and each feeding arm 205 can be coupled with the first isolator 203, the grounding body 204 and the target radiator 207, and M is an integer greater than 1.
可以理解，本发明实施例中，上述M个馈电臂的分布形状可以形成一个类环状。It can be understood that, in the embodiment of the present invention, the distribution shape of the foregoing M feed arms may form a ring-like shape.
需要说明的是，本发明实施例中，由于接地体与第一隔离体和第二隔离体电连接，且第一隔离体设置在第一绝缘体中，第二隔离体设置在第一绝缘体和第二绝缘体中，以及第二隔离体围绕M个馈电部设置，M个馈电部围绕第一隔离体设置，因此接地体和第二隔离体可以形成一个金属腔体，接地体和第一隔离体可以形成一个设置在该金属腔体内的金属背腔(以下称为目标金属背腔)。如此，上述M个馈电臂中的每个馈电臂均可以与该目标金属背腔耦合。即目标金属背腔也可以为作为本发明实施例提供的天线单元的一个辐射体。It should be noted that in the embodiment of the present invention, since the grounding body is electrically connected to the first insulator and the second insulator, and the first insulator is provided in the first insulator, and the second insulator is provided in the first insulator and the second insulator. Among the two insulators, and the second insulator is arranged around the M power feeders, and the M power feeders are arranged around the first insulator, so the grounding body and the second insulator can form a metal cavity, the grounding body and the first isolation The body may form a metal back cavity (hereinafter referred to as a target metal back cavity) arranged in the metal cavity. In this way, each of the above M feed arms can be coupled with the target metal back cavity. That is, the target metal back cavity may also be a radiator as the antenna unit provided in the embodiment of the present invention.
另外，本发明实施例中，为了更加清楚地示意天线单元的结构，上述图2是以天线单元的结构的***图示意的，即是以天线单元的组成部分均处于分离状态示意的。实际实现 时，第一绝缘体、馈电部、第一隔离体、接地体、馈电臂、第二绝缘体、目标辐射体，以及第二隔离体可以组成一个整体，以形成一个本发明实施例提供的天线单元。In addition, in the embodiment of the present invention, in order to illustrate the structure of the antenna unit more clearly, the above-mentioned FIG. 2 is an exploded view of the structure of the antenna unit, that is, the component parts of the antenna unit are all in a separated state. In actual implementation, the first insulator, the feeder, the first insulator, the grounding body, the feeder arm, the second insulator, the target radiator, and the second insulator can be combined into a whole to form an embodiment of the present invention. The antenna unit.
可选的，本发明实施例中，上述M个馈电臂中的每个馈电臂的第一端可以与上述M个馈电部中的不同馈电部电连接。即馈电臂的第一端可以为天线单元的馈电点。Optionally, in the embodiment of the present invention, the first end of each of the above-mentioned M power-feeding arms may be electrically connected to different ones of the above-mentioned M power-feeding parts. That is, the first end of the feeding arm may be the feeding point of the antenna unit.
可选的，本发明实施例中，上述第一顺序可以为顺时针的顺序，也可以为逆时针的顺序。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the above-mentioned first order may be a clockwise order or a counterclockwise order. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
本发明实施例中，以上述M个馈电臂按照顺时针的顺序环绕设置为例，假设上述M个馈电臂为四个馈电臂，该四个馈电臂可以按照从第一个馈电臂的第一端到第一个馈电臂的第二端、再从第二个馈电臂的第一端到第二个馈电臂的第二端、接着从第三个馈电臂的第一端到第三个馈电臂的第二端，最后从第四个馈电臂的第一端到第四个馈电臂的第二端的次序，按照顺时针的顺序依次设置。In the embodiment of the present invention, taking the above-mentioned M feeding arms arranged in a clockwise order as an example, it is assumed that the above-mentioned M feeding arms are four feeding arms, and the four feeding arms can be fed from the first one. From the first end of the electric arm to the second end of the first feeding arm, then from the first end of the second feeding arm to the second end of the second feeding arm, and then from the third feeding arm The sequence from the first end of the fourth feeder arm to the second end of the third feeder arm, and finally from the first end of the fourth feeder arm to the second end of the fourth feeder arm, is set in a clockwise order.
需要说明的是，本发明实施例中，当上述M个馈电臂按照上述第一顺序环绕设置时，该M个馈电臂中的每个馈电臂的第一端之间的距离均比较大，如此可以减小各个馈电臂之间的相互干扰。It should be noted that, in the embodiment of the present invention, when the above M feed arms are arranged in a circle according to the above first order, the distances between the first ends of each of the M feed arms are compared. Large, so that the mutual interference between the various feed arms can be reduced.
可选的，本发明实施例中，本发明实施例提供的天线单元可以通过LTCC技术、PCB加工技术，或者基板加工技术等任意可能的技术制成。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the antenna unit provided in the embodiment of the present invention may be manufactured by any possible technology such as LTCC technology, PCB processing technology, or substrate processing technology. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
示例性的，天线单元中的各个部件(例如第一绝缘体、馈电部、第一隔离体、接地体、馈电臂、第二绝缘体、目标辐射体，以及第二隔离体等部件)可以通过LTCC技术组合在一起，以形成本发明实施例提供的天线单元。Exemplarily, various components in the antenna unit (such as the first insulator, the feeder, the first isolator, the grounding body, the feeder arm, the second insulator, the target radiator, and the second isolator) can pass through The LTCC technologies are combined to form the antenna unit provided by the embodiment of the present invention.
可选的，本发明实施例中，上述第一绝缘体的材料可以为陶瓷或塑胶等任意可能的材料。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in this embodiment of the present invention, the material of the above-mentioned first insulator may be any possible material such as ceramic or plastic. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第一绝缘体的材料可以为一种绝缘材料，也可以为多种绝缘材料，具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the material of the above-mentioned first insulator may be one type of insulating material or multiple types of insulating materials, which may be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第一绝缘体的相对介电常数和损耗角正切值均比较小的材料。Optionally, in the embodiment of the present invention, the relative dielectric constant and the loss tangent of the first insulator are materials with relatively small values.
可选的，本发明实施例中，上述第一绝缘体的材料的相对介电常数可以小于或等于5。Optionally, in the embodiment of the present invention, the relative dielectric constant of the material of the first insulator may be less than or equal to 5.
具体的，本发明实施例中，上述第一绝缘体的材料的相对介电常数可以大于或等于2、且小于或等于5。Specifically, in the embodiment of the present invention, the relative dielectric constant of the material of the first insulator may be greater than or equal to 2 and less than or equal to 5.
需要说明的是，本发明实施例中，上述第一绝缘体的材料的损耗角正切值越小，第一绝缘体对天线单元中的其它部件的干扰越小，天线单元的性能越稳定。It should be noted that, in the embodiment of the present invention, the smaller the loss tangent value of the material of the first insulator, the less the interference of the first insulator to other components in the antenna unit, and the more stable the performance of the antenna unit.
可选的，本发明实施例中，上述第二绝缘体的材料也可以为陶瓷、塑胶等任意可能的材料。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the material of the above-mentioned second insulator may also be any possible materials such as ceramics and plastics. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第二绝缘体的材料可以为一种绝缘材料，也可以为多种绝缘材料，具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the material of the above-mentioned second insulator may be one type of insulating material or multiple types of insulating materials, which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第二绝缘体的材料可以与第一绝缘体的材料相同，也可以与第一绝缘体的材料不同，具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the material of the above-mentioned second insulator may be the same as the material of the first insulator, or may be different from the material of the first insulator, which can be specifically determined according to actual usage requirements, which is not limited in the embodiment of the present invention.
可选的，本发明实施例中，上述第二绝缘体的材料可以为相对介电常数和损耗角正切值均比较小的材料。Optionally, in the embodiment of the present invention, the material of the above-mentioned second insulator may be a material with relatively small relative permittivity and loss tangent.
需要说明的是，本发明实施例中，上述第二绝缘体的材料的损耗角正切值越小，第二绝缘体对天线单元中的其它部件的干扰越小，天线单元的性能越稳定。It should be noted that, in the embodiment of the present invention, the smaller the loss tangent value of the material of the second insulator, the less the interference of the second insulator to other components in the antenna unit, and the more stable the performance of the antenna unit.
本发明实施例中，上述接地体可以作为本发明实施例提供的天线单元的地的一部分，如此可以使得天线单元能够可靠地接地，从而可以使得天线单元的性能比较稳定。In the embodiment of the present invention, the above-mentioned grounding body may be used as a part of the ground of the antenna unit provided in the embodiment of the present invention, so that the antenna unit can be reliably grounded, and the performance of the antenna unit can be relatively stable.
可选的，本发明实施例中，上述接地体可以为设置在第一绝缘体底部的金属片，也可以为喷涂在第一绝缘体底部的金属材料等。当然，实际实现时，接地体还可以以其它任意可能的形式设置在第一绝缘体底部，具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the above-mentioned grounding body may be a metal sheet provided at the bottom of the first insulator, or may be a metal material sprayed on the bottom of the first insulator, or the like. Of course, in actual implementation, the grounding body can also be arranged at the bottom of the first insulator in any other possible form, which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
为了更加清楚地描述本发明实施例提供的天线单元及其工作原理，下面具体以一个天线单元为例，对本发明实施例提供的天线单元发送信号和接收信号的工作原理进行示例性的说明。In order to more clearly describe the antenna unit provided by the embodiment of the present invention and its working principle, the following specifically takes an antenna unit as an example to exemplarily describe the working principle of the antenna unit provided in the embodiment of the present invention for transmitting and receiving signals.
示例性的，结合上述图2，当电子设备发送5G毫米波信号时，电子设备中的信号源会发出交流信号，该交流信号可以通过馈电部将传输到馈电臂。然后，在馈电臂接收到该交流信号之后，一方面，馈电臂可以与接地体和第一隔离体(即接地体和第一隔离体形成的目标金属背腔)耦合，使得目标金属背腔上产生感应电流，然后目标金属背腔可以向外辐射多个频率的电磁波(由于馈电臂与目标金属背腔耦合产生的感应电流的电流路径有可以有多个，例如从馈电臂到目标金属背腔再到馈电臂的电流路径、目标金属背腔上形成的电流路径等电流路径，因此馈电臂上的电流经由目标金属背腔辐射的电磁波的频率可以有多个)。另一方面，馈电臂可以与目标辐射体耦合，使得目标辐射体上产生感应的交流信号，然后目标辐射体可以向外辐射多个频率的电磁波(由于馈电臂与目标辐射体耦合产生的感应电流的电流路径有可以有多个，例如从馈电臂到目标辐射体再到馈电臂的电流路径、目标辐射体上形成的电流路径等电流路径，因此馈电臂上的电流经由目标辐射体辐射的电磁波的频率也可以有多个)如此，电子设备可以通过本发明实施例提供的天线单元发送不同频率的信号，即可以使得天线单元产生更宽的带宽。Exemplarily, in conjunction with FIG. 2 above, when the electronic device sends a 5G millimeter wave signal, the signal source in the electronic device sends out an AC signal, and the AC signal can be transmitted to the feeding arm through the feeding part. Then, after the AC signal is received by the feeding arm, on the one hand, the feeding arm can be coupled with the ground body and the first isolator (that is, the target metal back cavity formed by the ground body and the first isolator), so that the target metal back Induction current is generated in the cavity, and then the target metal back cavity can radiate electromagnetic waves of multiple frequencies (due to the coupling of the feeding arm and the target metal back cavity, there can be multiple current paths for the induced current, such as from the feeding arm to the The current path from the target metal back cavity to the feed arm, the current path formed on the target metal back cavity, etc., so the current on the feed arm radiates electromagnetic waves through the target metal back cavity at multiple frequencies). On the other hand, the feed arm can be coupled with the target radiator, so that the induced AC signal is generated on the target radiator, and then the target radiator can radiate electromagnetic waves of multiple frequencies (due to the coupling of the feed arm and the target radiator). There can be multiple current paths for the induced current, such as the current path from the feed arm to the target radiator and then to the feed arm, the current path formed on the target radiator, etc., so the current on the feed arm passes through the target The electromagnetic wave radiated by the radiator can also have multiple frequencies.) In this way, the electronic device can transmit signals of different frequencies through the antenna unit provided in the embodiment of the present invention, that is, the antenna unit can generate a wider bandwidth.
又示例性的，本发明实施例中，当电子设备接收5G毫米波信号时，电子设备所处的空间中的电磁波(不同频率的电磁波)可以激励上述目标金属背腔(即接地体和第一隔离体)或目标辐射体，从而可以使得目标金属背腔或目标辐射体产生感应电流。在目标金属背腔或目标辐射体产生感应电流之后，目标金属背腔或目标辐射体可以与馈电臂耦合，使得馈电臂产生感应电路(即感应的交流信号)。然后，馈电臂可以通过馈电部向电子设备中的接收机输入该交流信号，如此可以使得电子设备接收到其它设备发送的5G毫米波信号。即电子设备可以通过本发明实施例提供的天线单元接收不同频率的信号。As another example, in the embodiment of the present invention, when the electronic device receives a 5G millimeter wave signal, electromagnetic waves (electromagnetic waves of different frequencies) in the space where the electronic device is located can excite the target metal back cavity (that is, the grounding body and the first Isolator) or target radiator, so that the target metal back cavity or target radiator can generate induced current. After the target metal back cavity or the target radiator generates an induced current, the target metal back cavity or the target radiator can be coupled with the feeding arm, so that the feeding arm generates an induction circuit (that is, an induced AC signal). Then, the power feeding arm can input the AC signal to the receiver in the electronic device through the power feeding part, so that the electronic device can receive the 5G millimeter wave signal sent by other devices. That is, the electronic device can receive signals of different frequencies through the antenna unit provided in the embodiment of the present invention.
下面再结合图3，对本发明实施例提供的天线单元的性能进行示例性的说明。In the following, referring to FIG. 3, the performance of the antenna unit provided by the embodiment of the present invention will be exemplarily described.
示例性的，如图3所示，为本发明实施例提供的天线单元工作时，天线单元的反射系数图。当回波损耗小于-10dB(分贝)时，天线单元覆盖的频率范围可以为26.249GHz-40.054GHz，该频率范围也可以包括多个主要的毫米波频段(例如n257、n260和n261)。如此，本发明实施例提供的天线单元可以覆盖主流的5G毫米波频段，从而可以提高电子设备的天线性能。Exemplarily, as shown in FIG. 3, it is a reflection coefficient diagram of the antenna unit when the antenna unit provided by the embodiment of the present invention works. When the return loss is less than -10dB (decibel), the frequency range covered by the antenna unit can be 26.249GHz-40.054GHz, and this frequency range can also include multiple main millimeter wave frequency bands (for example, n257, n260, and n261). In this way, the antenna unit provided by the embodiment of the present invention can cover the mainstream 5G millimeter wave frequency band, thereby improving the antenna performance of the electronic device.
需要说明的是，本发明实施例中，当一个天线单元的回波损耗小于-10dB时，该天线单元不仅可以满足实际使用需求，而且其天线性能也比较优良。即本发明实施例提供的天 线单元可以在满足实际使用需求的基础上，保证更加优良的性能。It should be noted that, in the embodiment of the present invention, when the return loss of an antenna unit is less than -10 dB, the antenna unit can not only meet actual use requirements, but also has relatively good antenna performance. That is, the antenna unit provided by the embodiment of the present invention can ensure better performance on the basis of meeting actual use requirements.
另外，上述图3中的点a和点b用于标记回波损耗的数值，由图3可见，点a标记的回波损耗的数值为-9.8622dB，点b标记的回波损耗的数值为-10.014dB。In addition, points a and b in the above figure 3 are used to mark the value of return loss. It can be seen from Figure 3 that the value of return loss marked by point a is -9.8622dB, and the value of return loss marked by point b is -10.014dB.
本发明实施例提供一种天线单元，由于第一隔离体和第二隔离体均与接地体电连接，且第二隔离体围绕M个馈电部设置，M个馈电部围绕第一隔离体设置，因此第一隔离体和接地体可以组成一个金属背腔，并且由于馈电臂可以与第一隔离体、接地体和目标辐射体耦合，即馈电臂可以与金属背腔(第一隔离体和接地体组成的)和目标辐射体耦合。如此，在馈电臂接收到交流信号的情况下，馈电臂可以与金属背腔和目标辐射体进行耦合，从而可以使得金属背腔和目标辐射体产生感应电流，进而可以使得馈电臂、金属背腔和目标辐射体均辐射一定频率的电磁波；并且，由于馈电臂与金属背腔和目标辐射体耦合产生的感应电流的电流路径可以有多个(例如从馈电臂到金属背腔再到馈电臂的电流路径，金属背腔上形成的电流路径，目标辐射体上形成的电流路径等)，因此馈电臂上的电流经由金属背腔和目标辐射体产生的电磁波的频率也可以有多个，如此可以使得天线单元覆盖多个的频段，从而可以增加天线单元的带宽。以及由于M个馈电臂按照第一顺序环绕设置，因此可以使得该M个馈电臂中的各个馈电臂之间的距离较大，如此可以减小该M个馈电臂之间的干扰，从而可以提高天线单元的端口的隔离度，进而可以进一步提高天线单元的性能。The embodiment of the present invention provides an antenna unit, since both the first isolator and the second isolator are electrically connected to the ground, and the second isolator is arranged around M feeders, and the M feeders surround the first isolator Therefore, the first isolator and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal back cavity (first isolation Body and grounding body) and the target radiator coupling. In this way, when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate induced current, which can make the feeding arm, Both the metal back cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feed arm and the metal back cavity and the target radiator (for example, from the feed arm to the metal back cavity). Then to the current path of the feed arm, the current path formed on the metal back cavity, the current path formed on the target radiator, etc.), so the frequency of the electromagnetic wave generated by the current on the feed arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit. And since the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
可选的，本发明实施例中，上述M个馈电部中的每个馈电部可以和与其连接的一个馈电臂形成一个“L型”的馈电结构。Optionally, in this embodiment of the present invention, each of the foregoing M power feeders may form an "L-shaped" power feed structure with a power feed arm connected to it.
可选的，本发明实施例中，一个馈电臂(上述M个馈电臂中的任意一个馈电臂)可以为对称结构的馈电臂。例如该馈电臂的结构可以沿水平方向对称，也可以沿垂直方向对称等。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, one feed arm (any one of the above-mentioned M feed arms) may be a feed arm with a symmetrical structure. For example, the structure of the feeding arm can be symmetrical in the horizontal direction, or symmetrical in the vertical direction. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，一个馈电臂(上述M个馈电臂中的任意一个馈电臂)可以为以下任意一种馈电臂：矩形馈电臂、“T”形馈电臂、“Y”形馈电臂。Optionally, in this embodiment of the present invention, one feed arm (any one of the above-mentioned M feed arms) may be any of the following feed arms: rectangular feed arm, "T" shaped feed arm Arm, "Y"-shaped feed arm.
当然，实际实现时，上述一个馈电臂还可以为其它任意可能的馈电臂。具体可以根据实际使用需求确定，本发明实施例不作限定。Of course, in actual implementation, the aforementioned one feeding arm may also be any other possible feeding arms. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述M个馈电臂可以为同一种馈电臂(例如该M个馈电臂均为“Y”形馈电臂)，也可以不同的馈电臂(例如该M个馈电臂中的部分馈电臂为“T”形馈电臂，另一部分馈电臂为“Y”形馈电臂)。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the above-mentioned M feeding arms may be the same kind of feeding arms (for example, the M feeding arms are all "Y"-shaped feeding arms), or different feeding arms ( For example, some of the M feed arms are “T”-shaped feed arms, and the other part of the feed arms is “Y”-shaped feed arms). Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
示例性的，上述M个馈电臂可以均为如图2所示的“T”形馈电臂205。Exemplarily, the foregoing M power feeding arms may all be “T”-shaped power feeding arms 205 as shown in FIG. 2.
本发明实施例中，由于不同形式(例如形状、材质和结构等)的馈电臂与接地体和第一隔离体耦合时的耦合量可能不同，且不同形式的馈电臂的阻抗需求也可能不同，即不同形式的馈电臂对天线单元的工作性能的影响可能不同，因此可以根据天线单元的实际使用需求，选择合适的馈电臂，从而可以使得天线单元工作在合适的频率范围内。In the embodiment of the present invention, the coupling amount when the feeder arms of different forms (such as shape, material, structure, etc.) are coupled to the ground body and the first isolator may be different, and the impedance requirements of the feeder arms of different forms may also be Different, that is, different types of feed arms may have different effects on the working performance of the antenna unit. Therefore, a suitable feed arm can be selected according to the actual use requirements of the antenna unit, so that the antenna unit can work in a suitable frequency range.
可选的，本发明实施例中，上述M个馈电臂中的每个馈电臂在第一平面上的投影均可以与第一隔离体在第一平面上的投影相交。其中，该第一平面可以为第一绝缘体上M个馈电部的横截面所在的平面。Optionally, in the embodiment of the present invention, the projection of each of the M feed arms on the first plane may intersect the projection of the first isolator on the first plane. Wherein, the first plane may be a plane where the cross-sections of the M power feeding parts on the first insulator are located.
本发明实施例中，在M个馈电臂中的每个馈电臂在上述第一平面上的投影均与第一隔 离体在第一平面上的投影相交的情况下，上述M个馈电臂中的每个馈电臂均可以与第一隔离体和接地体形成的目标金属背腔满足耦合连接的关系(即在天线单元工作的情况下，M个馈电臂中的每个馈电臂均与目标金属背腔耦合；在天线单元未工作的情况下，M个馈电臂中的每个馈电臂均与目标金属背腔绝缘)。In the embodiment of the present invention, when the projection of each of the M feed arms on the first plane intersects the projection of the first isolator on the first plane, the M feed arms Each feed arm in the arm can meet the coupling connection relationship with the target metal back cavity formed by the first isolator and the ground body (that is, when the antenna unit is working, each of the M feed arms feeds The arms are all coupled with the target metal back cavity; when the antenna unit is not working, each of the M feed arms is insulated from the target metal back cavity).
可选的，本发明实施例中，上述M个馈电臂可以按照上述第一顺序，沿第二隔离体的内侧壁，以从馈电臂的第一端到馈电臂的第二端的次序设置。Optionally, in the embodiment of the present invention, the M feed arms may follow the first sequence described above along the inner side wall of the second isolator in the order from the first end of the feed arm to the second end of the feed arm Set up.
也就是说，按照上述第一顺序，上述M个馈电臂中的一个馈电臂的第二端可以与该一个馈电臂相邻的下一个馈电臂的第一端相邻。That is to say, according to the above-mentioned first sequence, the second end of one of the above-mentioned M feeding arms may be adjacent to the first end of the next feeding arm adjacent to the one feeding arm.
示例性的，如图4所示，为本发明实施例提供的天线单元在Z轴反向(例如图2所示的坐标系)上的俯视图。假设上述第一顺序为顺时针的顺序，上述M个馈电臂为四个馈电臂，分别为第一馈电臂2050、第二馈电臂2052、第三馈电臂2051和第四馈电臂2053。其中该四个馈电臂可以按照从第一馈电臂2050的第一端到第一馈电臂2050的第二端、再到第二馈电臂2052的第一端，然后从第二馈电臂2052的第一端到第二馈电臂2052的第二端、再到第三馈电臂2051的第一端，接着从第三馈电臂2051的第一端到第三馈电臂2051的第二端、再到第四馈电臂2053的第一端，最后从第四馈电臂2053的第一端到第四馈电臂2053的第二端、再到第一馈电臂2050的第一端的次序，按照顺时针的顺序依次设置。由图4可见，第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂可以形成一个类环状。也就是说，第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂环绕设置。Exemplarily, as shown in FIG. 4, it is a top view of the antenna unit provided by an embodiment of the present invention on the reverse Z axis (for example, the coordinate system shown in FIG. 2). Assuming that the above-mentioned first sequence is a clockwise sequence, the above-mentioned M feeding arms are four feeding arms, which are the first feeding arm 2050, the second feeding arm 2052, the third feeding arm 2051, and the fourth feeding arm respectively. Electric arm 2053. Among them, the four feeding arms can follow from the first end of the first feeding arm 2050 to the second end of the first feeding arm 2050, to the first end of the second feeding arm 2052, and then from the second feeding arm 2050. The first end of the electric arm 2052 to the second end of the second feeding arm 2052, to the first end of the third feeding arm 2051, and then from the first end of the third feeding arm 2051 to the third feeding arm The second end of 2051, then to the first end of the fourth feeding arm 2053, and finally from the first end of the fourth feeding arm 2053 to the second end of the fourth feeding arm 2053, and then to the first feeding arm The order of the first end of the 2050 is set in a clockwise order. It can be seen from FIG. 4 that the first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm may form a ring-like shape. In other words, the first power feed arm, the second power feed arm, the third power feed arm and the fourth power feed arm are arranged around.
本发明实施例中，由于在天线单元在工作时，在馈电臂上流过的电流具有方向性，因此可以通过将上述M个馈电臂按照上述第一顺序设置可以增加不同馈电臂(具体可以为馈电臂的第一端)之间的距离(即一个馈电臂的第一端与其它馈电臂的第一端之间的距离均比较大)，如此可以减小不同馈电臂之间的干扰，从而可以提高天线单元的端口(即天线单元的馈电端口)的隔离度。并且由于沿第二隔离体的内侧壁设置馈电臂可以使得这些馈电臂尽可能的离散分布，从而可以进一步减小这些馈电臂之间的相互干扰，进而可以进一步提高天线单元的端口的隔离度。In the embodiment of the present invention, since the current flowing on the feeder arm has directivity when the antenna unit is working, it is possible to add different feeder arms (specifically, by arranging the M feeder arms in the aforementioned first order). It can be the distance between the first end of the feeder arm (that is, the distance between the first end of one feeder arm and the first end of the other feeder arm is relatively large), so that different feeder arms can be reduced Therefore, the isolation of the port of the antenna unit (that is, the feed port of the antenna unit) can be improved. And because the feeding arms are arranged along the inner side wall of the second isolator, the feeding arms can be distributed as discretely as possible, thereby further reducing the mutual interference between the feeding arms, and further improving the port performance of the antenna unit. Isolation.
可选的，本发明实施例中，第二隔离体的横截面可以为矩形，上述M个馈电臂可以包括第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂，第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂沿第二隔离体的内侧壁顺序设置。Optionally, in the embodiment of the present invention, the cross section of the second isolator may be rectangular, and the above M feed arms may include a first feed arm, a second feed arm, a third feed arm, and a fourth feed arm. The electric arm, the first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm are sequentially arranged along the inner side wall of the second isolator.
其中，第一馈电臂和第三馈电臂均可以与第二隔离体的第一内侧壁平行，第二馈电臂和第四馈电臂均可以与第二隔离体的第二内侧壁平行，该第一内侧壁与该第二内侧壁垂直。Wherein, the first feeding arm and the third feeding arm may both be parallel to the first inner side wall of the second isolator, and both the second feeding arm and the fourth feeding arm may be parallel to the second inner side wall of the second isolating body. Parallel, the first inner side wall is perpendicular to the second inner side wall.
可以理解，当第二隔离体的横截面为矩形，那么第二隔离体与接地体组成的金属腔体可以为一个矩形金属腔体，上述第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂可以沿该矩形金属腔体的内侧壁顺序设置。It can be understood that when the cross section of the second isolator is rectangular, the metal cavity formed by the second isolator and the grounding body can be a rectangular metal cavity. The feeding arm and the fourth feeding arm may be sequentially arranged along the inner side wall of the rectangular metal cavity.
需要说明的是，本发明实施例中，上述第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂还可以按照其它任意可能的方式沿第二隔离体的内侧壁顺序设置，例如第一馈电臂和第三馈电臂均可以与第二隔离体的第二内侧壁平行，第二馈电臂和第四馈电臂均可以与第二隔离体的第一内侧壁平行。具体可以根据实际使用需求确定，本发明实施例不作限定。It should be noted that, in the embodiment of the present invention, the above-mentioned first, second, third, and fourth feed arms may also be along the inner side of the second isolator in any other possible manner. The walls are arranged in sequence, for example, both the first feeding arm and the third feeding arm can be parallel to the second inner side wall of the second isolator, and both the second feeding arm and the fourth feeding arm can be connected to the second inner wall of the second isolating body. An inner side wall is parallel. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
示例性的，如图4所示，第一馈电臂2050和第三馈电臂2051可以均与第二隔离体的内侧壁S1(即上述第一内侧壁)平行，第二馈电臂2052和第四馈电臂2053可以均与第二 隔离体的内侧壁S2(即上述第二内侧壁)平行。且由图4可见，第二隔离体的内侧壁S1与第二隔离体的内侧壁S2垂直。Exemplarily, as shown in FIG. 4, the first feeding arm 2050 and the third feeding arm 2051 may both be parallel to the inner side wall S1 of the second isolator (that is, the above-mentioned first inner side wall), and the second feeding arm 2052 Both the fourth feeding arm 2053 and the fourth feeding arm 2053 may be parallel to the inner side wall S2 of the second isolator (ie, the above-mentioned second inner side wall). It can be seen from FIG. 4 that the inner side wall S1 of the second isolator is perpendicular to the inner side wall S2 of the second isolator.
需要说明的是，由于图4为本发明实施例提供的天线单元在Z轴反向上的俯视图，因此图4示意的坐标系仅示意了X轴和Y轴。It should be noted that since FIG. 4 is a top view of the antenna unit provided by an embodiment of the present invention on the reverse of the Z axis, the coordinate system illustrated in FIG. 4 only illustrates the X axis and the Y axis.
可选的，本发明实施例中，上述第一馈电臂可以与第三馈电臂组成一个馈电臂组(以下称为第一馈电臂组)，上述第二馈电臂可以与第四馈电臂组成一个馈电臂组(以下称为第二馈电臂组)。Optionally, in the embodiment of the present invention, the first feeding arm and the third feeding arm may form a feeding arm group (hereinafter referred to as the first feeding arm group), and the second feeding arm may be combined with the first feeding arm. The four feeding arms form a feeding arm group (hereinafter referred to as the second feeding arm group).
本发明实施例中，由图4可见，按照第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂沿第二隔离体的内侧壁顺序设置的设置方式，可以使得第一馈电臂2050与第三馈电臂2051之间的距离比较大，第二馈电臂2052与第四馈电臂2053之间的距离比较大。In the embodiment of the present invention, as can be seen from FIG. 4, according to the arrangement in which the first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm are arranged in sequence along the inner side wall of the second isolator, it can be As a result, the distance between the first feeding arm 2050 and the third feeding arm 2051 is relatively large, and the distance between the second feeding arm 2052 and the fourth feeding arm 2053 is relatively large.
本发明实施例中，由于一个馈电臂组中的馈电臂之间的距离越大，该馈电臂组对其它馈电臂组的影响越小，因此可以通过将上述第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂沿第二隔离体的内侧壁顺序设置的方式，增大上述两个馈电臂组(第一馈电臂组和第二馈电臂组)中的馈电臂之间的距离，从而可以减小天线单元工作过程中这些馈电臂组之间的相互影响，进而可以提高天线单元端口的隔离度。In the embodiment of the present invention, since the greater the distance between the feeding arms in one feeding arm group, the smaller the influence of the feeding arm group on other feeding arm groups. Therefore, the above-mentioned first feeding arm can be , The second feeder arm, the third feeder arm and the fourth feeder arm are arranged in sequence along the inner side wall of the second isolator to increase the above two feeder arm groups (the first feeder arm group and the second feeder arm group). The distance between the feeder arms in the feeder arm group can reduce the mutual influence between these feeder arm groups during the working process of the antenna unit, and thus can improve the isolation of the antenna unit port.
可选的，本发明实施例中，上述第一馈电臂组和上述第二馈电臂组可以为两个不同极化的馈电臂组。具体的，第一馈电臂组可以为一个第一极化的馈电臂组，第二馈电臂组可以为一个第二极化的馈电臂组。Optionally, in the embodiment of the present invention, the first feed arm group and the second feed arm group may be two feed arm groups with different polarizations. Specifically, the first feed arm group may be a first polarized feed arm group, and the second feed arm group may be a second polarized feed arm group.
可选的，本发明实施例中，上述第一极化和第二极化可以为不同方向的极化。Optionally, in this embodiment of the present invention, the foregoing first polarization and second polarization may be polarizations in different directions.
本发明实施例中，上述第一极化的极化方向可以为+45°极化，上述第二极化的极化方向可以为-45°极化；或者，第一极化的极化方向可以为水平极化，第二极化的极化方向可以为垂直极化，等等。In the embodiment of the present invention, the polarization direction of the first polarization may be +45° polarization, and the polarization direction of the second polarization may be -45° polarization; or, the polarization direction of the first polarization It can be horizontal polarization, the polarization direction of the second polarization can be vertical polarization, and so on.
当然，实际实现时，上述第一极化的极化方向和第二极化的极化方向还可以为其它任意可能的方向。具体可以根据实际使用需求确定，本发明实施例不作限定。Of course, in actual implementation, the polarization direction of the first polarization and the polarization direction of the second polarization may also be any other possible directions. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
示例性的，如图4所示，第一馈电臂2050和第三馈电臂2051组成的第一馈电臂组可以为+45°极化(即上述第一极化)的馈电臂组；第二馈电臂2052和第四馈电臂2052组成的第二馈电臂组可以为-45°极化(即上述第二极化)的馈电臂组。Exemplarily, as shown in FIG. 4, the first feeding arm group composed of the first feeding arm 2050 and the third feeding arm 2051 may be a feeding arm of +45° polarization (that is, the above-mentioned first polarization). Group; The second feed arm group composed of the second feed arm 2052 and the fourth feed arm 2052 may be a feed arm group with -45° polarization (that is, the above-mentioned second polarization).
本发明实施例中，由于上述第一馈电臂组和第二馈电臂组可以为两个不同极化(第一极化和第二极化)的馈电臂组，因此可以使得本发明实施例提供的天线单元可以形成一个双极化的天线单元，如此可以提高天线单元的无线连接能力，从而可以减小天线单元通信断线的概率，进而可以提高天线单元的通信能力。In the embodiment of the present invention, since the above-mentioned first feed arm group and the second feed arm group can be two feed arm groups with different polarizations (first polarization and second polarization), the present invention can be The antenna unit provided by the embodiment can form a dual-polarized antenna unit, which can improve the wireless connection capability of the antenna unit, thereby reducing the probability of communication disconnection of the antenna unit, and further improving the communication capability of the antenna unit.
可选的，本发明实施例中，当第一馈电臂组中的一个馈电臂处于工作状态时，第一馈电臂组中的另一个馈电臂也可以处于工作状态。相应的，当第二馈电臂组中的一个馈电臂处于工作状态时，第二馈电臂组中的另一个馈电臂也可以处于工作状态。即同一馈电臂组中的馈电臂可以是同时工作的。Optionally, in the embodiment of the present invention, when one feeding arm in the first feeding arm group is in the working state, the other feeding arm in the first feeding arm group may also be in the working state. Correspondingly, when one feeding arm in the second feeding arm group is in the working state, the other feeding arm in the second feeding arm group may also be in the working state. That is, the feeding arms in the same feeding arm group can work at the same time.
可选的，本发明实施例中，当第一馈电臂组中的馈电臂处于工作状态时，第二馈电臂组中的馈电臂可能处于工作状态，也可能不处于工作状态。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, when the feeding arms in the first feeding arm group are in a working state, the feeding arms in the second feeding arm group may or may not be in a working state. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
本发明实施例中，由于天线单元中可以包括两个馈电臂组，因此电子设备可以通过天 线单元中的该两个馈电臂组发送信号和接收信号，即可以通过本发明实施例提供的天线单元实现MIMO技术，如此可以提高天线单元的通信容量和通信速率，即可以提高天线单元的数据传输速率。In the embodiment of the present invention, since the antenna unit may include two feeder arm groups, the electronic device can transmit and receive signals through the two feeder arm groups in the antenna unit, that is, it can be provided by the embodiment of the present invention. The antenna unit implements MIMO technology, so that the communication capacity and communication rate of the antenna unit can be increased, that is, the data transmission rate of the antenna unit can be increased.
可选的，本发明实施例中，上述M个馈电臂均可以位于同一平面上。Optionally, in this embodiment of the present invention, all the above M feed arms may be located on the same plane.
可以理解，本发明实施例中，在上述M个馈电臂均位于同一平面上的情况下，该M个馈电臂中的每个馈电臂均与接地体之间的距离均相等，且每个馈电臂均与目标辐射体之间的距离均相等。It can be understood that, in the embodiment of the present invention, in the case where the above M feed arms are all located on the same plane, the distance between each feed arm of the M feed arms and the ground body is equal, and The distance between each feed arm and the target radiator is equal.
本发明实施例中，由于上述M个馈电臂与接地体之间的距离不同，上述M个馈电臂与目标金属背腔(接地体和第一隔离体)耦合时的耦合参数可能不同，例如上述M个馈电臂与目标金属背腔耦合产生的感应电流可能不同，因此可以根据天线单元的实际使用需求(例如天线单元覆盖的频率范围)，灵活的设置上述M个馈电臂与接地体之间的距离。In the embodiment of the present invention, due to the different distances between the M feeding arms and the ground body, the coupling parameters when the M feeding arms are coupled to the target metal back cavity (the ground body and the first isolator) may be different. For example, the induced currents generated by the coupling between the above M feed arms and the target metal back cavity may be different. Therefore, the above M feed arms and ground can be flexibly set according to the actual use requirements of the antenna unit (for example, the frequency range covered by the antenna unit). The distance between the bodies.
相应的，由于上述M个馈电臂与目标辐射体之间的距离不同，上述M个馈电臂与目标辐射体耦合的耦合参数也不同，例如上述M个馈电臂与目标辐射体耦合产生的感应电流，因此可以根据天线单元的实际使用需求(例如天线单元覆盖的频率范围)，灵活的设置上述M个馈电臂与目标辐射体之间的距离。Correspondingly, due to the different distances between the M feed arms and the target radiator, the coupling parameters of the M feed arms and the target radiator are also different, for example, the coupling of the M feed arms and the target radiator produces Therefore, the distance between the aforementioned M feed arms and the target radiator can be flexibly set according to the actual use requirements of the antenna unit (for example, the frequency range covered by the antenna unit).
可选的，本发明实施例中，上述M个馈电部可以贯穿接地体、且与接地体绝缘。Optionally, in this embodiment of the present invention, the above M power feeders may penetrate the grounding body and be insulated from the grounding body.
具体的，实际实现时，馈电部的一端可以与馈电臂(具体可以为馈电臂的第一端)电连接，馈电部的另一端可以与电子设备中的一个信号源(例如电子设备中的5G信号源)电连接。如此，电子设备中的信号源的电流可以通过该馈电部传输到馈电臂上，然后通过馈电臂耦合到上述目标金属背腔和目标辐射体上，如此可以使得目标金属背腔和目标辐射体产生感应电流，从而可以使得目标金属背腔和目标辐射体辐射不同频率的电磁波，如此，本发明实施例提供的天线单元可以将电子设备中的5G毫米波信号辐射出去。Specifically, in actual implementation, one end of the power feeder can be electrically connected to the feeder arm (specifically, the first end of the feeder arm), and the other end of the power feeder can be connected to a signal source in the electronic device (for example, electronic The 5G signal source in the device) is electrically connected. In this way, the current of the signal source in the electronic device can be transmitted to the feeding arm through the feeding part, and then coupled to the target metal back cavity and the target radiator through the feeding arm, so that the target metal back cavity and the target The radiator generates an induced current, so that the target metal back cavity and the target radiator can radiate electromagnetic waves of different frequencies. In this way, the antenna unit provided in the embodiment of the present invention can radiate 5G millimeter wave signals in the electronic device.
可选的，本发明实施例中，上述第二隔离体的横截面为矩形，上述M个馈电部可以为四个馈电部，该四个馈电部中的两个馈电部可以位于第二隔离体的横截面的一条对角线上，该四个馈电部中的另外两个馈电部可以位于第二隔离体的横截面的另一条对角线上。Optionally, in the embodiment of the present invention, the cross section of the second isolator is rectangular, the M power feeders may be four power feeders, and two of the four power feeders may be located at On one diagonal of the cross section of the second isolator, the other two of the four power feeders may be located on the other diagonal of the cross section of the second isolator.
可选的，本发明实施例中，与上述第一馈电臂和第三馈电臂电连接的两个馈电部可以位于第二隔离体的横截面的一条对角线上，与上述第二馈电臂和第四馈电臂电连接的两个馈电部可以位于第二隔离体的横截面的另一条对角线上。Optionally, in the embodiment of the present invention, the two feeders electrically connected to the first feeder arm and the third feeder arm may be located on a diagonal line of the cross section of the second isolator, and are opposite to the first feeder arm. The two feeders electrically connected to the second feeder arm and the fourth feeder arm may be located on the other diagonal line of the cross section of the second isolator.
示例性的，如图4所示，与第一馈电臂2050(具体可以为第一馈电臂的第一端)电连接的馈电部2020和与第三馈电臂2051(具体可以为第三馈电臂的第一端)电连接的馈电部2021可以位于第一隔离体的横截面的第一对角线L1上，与第二馈电臂2052(具体可以为第二馈电臂的第一端)电连接的馈电部2022和与第四馈电臂2053(具体可以为第四馈电臂的第一端)电连接的馈电部2023可以位于第一隔离体的横截面的第二对角线L2上。如此可以进一步增大第一馈电臂与第三馈电臂之间的距离、第二馈电臂与第四馈电臂之间的距离，从而可以进一步提高天线单元的端口的隔离度。Exemplarily, as shown in FIG. 4, the feeder 2020 electrically connected to the first feeder arm 2050 (specifically the first end of the first feeder arm) and the third feeder arm 2051 (specifically may be The feeding portion 2021 electrically connected to the first end of the third feeding arm may be located on the first diagonal line L1 of the cross section of the first isolator, and is connected to the second feeding arm 2052 (specifically, the second feeding arm 2052). The first end of the arm) and the power feeder 2022 electrically connected to the fourth feeder arm 2053 (specifically, the first end of the fourth feeder arm) may be located on the side of the first isolator. On the second diagonal of the section L2. In this way, the distance between the first feeding arm and the third feeding arm, and the distance between the second feeding arm and the fourth feeding arm can be further increased, so that the isolation of the port of the antenna unit can be further improved.
下面再结合图5，对本发明实施例提供的天线单元的隔离度进行示例性的说明。In the following, with reference to FIG. 5, the isolation of the antenna unit provided by the embodiment of the present invention will be exemplarily described.
示例性的，如图5所示，为本发明实施例提供的天线单元工作时，天线单元的传输系数图。假设第二隔离体的横截面为矩形；且第一馈电臂与第三馈电臂组成的馈电臂组为+45°极化的馈电臂组，第二馈电臂和第四馈电臂组成的馈电臂组为-45°极化的馈电臂组，以 及与第一馈电臂和第三馈电臂电连接的馈电部分布在第二隔离体的横截面的一条对角线上，与第二馈电臂和第四馈电臂电连接的馈电臂分布在第二隔离体的横截面的另一条对角线上。那么，如图5所示，在天线单元工作的全频段(即天线单元能够覆盖的所有频段)内，天线单元的端口的隔离度均小于-20dB。然而，通常天线单元的端口的隔离度为-10dB即可满足实际使用需求，且天线单元的端口的隔离度越小，天线单元的极化隔离度越好，从而可以进一步提高天线单元的极化性能。Exemplarily, as shown in FIG. 5, it is a diagram of the transmission coefficient of the antenna unit when the antenna unit provided by the embodiment of the present invention works. Assuming that the cross section of the second isolator is rectangular; and the feed arm group composed of the first feed arm and the third feed arm is a +45° polarized feed arm group, the second feed arm and the fourth feed arm The feed arm group composed of the electric arms is a -45° polarized feed arm group, and the feeding part electrically connected to the first and third feed arms is arranged on the cross section of the second isolator On a diagonal line, the feeder arms electrically connected to the second feeder arm and the fourth feeder arm are distributed on the other diagonal line of the cross section of the second isolator. Then, as shown in FIG. 5, in the full frequency band where the antenna unit works (that is, all frequency bands that the antenna unit can cover), the isolation of the port of the antenna unit is less than -20dB. However, usually the isolation of the port of the antenna unit is -10dB to meet the actual use requirements, and the smaller the isolation of the port of the antenna unit, the better the polarization isolation of the antenna unit, which can further improve the polarization of the antenna unit performance.
可选的，本发明实施例中，与位于同一条对角线上的两个馈电部电连接的信号源的幅值相等，相位相差180度。Optionally, in this embodiment of the present invention, the signal sources electrically connected to the two feeders located on the same diagonal have the same amplitude and a phase difference of 180 degrees.
可选的，本发明实施例中，与上述第一馈电臂组中的馈电臂(上述第一馈电臂和第三馈电臂)电连接的两个馈电部电连接的信号源的幅值相等，相位相差180度。与上述第二馈电臂组中的馈电臂(上述第二馈电臂和第四馈电臂)电连接的两个馈电部电连接的信号源的幅值相等，相位相差180度。Optionally, in the embodiment of the present invention, a signal source electrically connected to two feeders electrically connected to the feeder arms (the aforementioned first feeder arm and the third feeder arm) in the aforementioned first feeder arm group The amplitudes are equal, and the phase difference is 180 degrees. The signal sources electrically connected to the two feeders electrically connected to the feeder arms (the second feeder arm and the fourth feeder arm) in the second feeder arm group have the same amplitude and a phase difference of 180 degrees.
可选的，本发明实施例中，在上述第一隔离体的横截面和第二隔离体的横截面均为矩形的情况下，第一隔离体的横截面上的任意一条对角线可以与第二隔离体的横截面上的任意一条对角线均不平行。Optionally, in the embodiment of the present invention, in the case where the cross section of the first isolator and the cross section of the second isolator are both rectangular, any diagonal line on the cross section of the first isolator may be opposite to Any diagonal line on the cross section of the second separator is not parallel.
本发明实施例中，为了便于描述，下面以第一隔离体的一条对角线(以下称为对角线1)和第二隔离体的一条对角线(以下称为对角线2)进行示例性的说明。In the embodiment of the present invention, for ease of description, a diagonal line of the first isolator (hereinafter referred to as diagonal 1) and a diagonal line of the second insulator (hereinafter referred to as diagonal 2) are used as follows. Exemplary description.
本发明实施例中，对角线1与对角线2不平行，可以理解为：对角线1与对角线2之间的夹角(以下称为第一夹角)大于0°，且小于180°。In the embodiment of the present invention, the diagonal line 1 and the diagonal line 2 are not parallel, which can be understood as: the included angle between the diagonal line 1 and the diagonal line 2 (hereinafter referred to as the first included angle) is greater than 0°, and Less than 180°.
本发明实施例中，上述第一夹角可以根据本发明实施例提供的天线单元的性能确定。In the embodiment of the present invention, the foregoing first included angle may be determined according to the performance of the antenna unit provided in the embodiment of the present invention.
可选的，本发明实施例中，当上述第一隔离体与上述第二隔离体均为矩形凹槽时，上述第一夹角(记为θ)可以大于0度，且小于或等于45度。Optionally, in the embodiment of the present invention, when the first isolator and the second isolator are both rectangular grooves, the first included angle (denoted as θ) may be greater than 0 degrees and less than or equal to 45 degrees. .
需要说明的是，本发明实施例中，第一夹角的取值范围为45°＜θ≤90°，或为90°＜θ≤135°，或为135°＜θ≤180°，对角线1与对角线2的位置关系与第一夹角的取值范围为0°＜θ≤45°时，对角线1与对角线2的位置关系相同。It should be noted that, in the embodiment of the present invention, the value range of the first included angle is 45°<θ≤90°, or 90°<θ≤135°, or 135°<θ≤180°, diagonally When the positional relationship between the line 1 and the diagonal line 2 and the value range of the first included angle are 0°<θ≦45°, the positional relationship between the diagonal line 1 and the diagonal line 2 is the same.
示例性的，如图2所示，第一隔离体203的横截面的对角线(即对角线1)D1与第二隔离体208的横截面的对角线(即对角线2)D2的夹角(即上述第一夹角)可以为45度。Exemplarily, as shown in FIG. 2, the diagonal line of the cross section of the first isolator 203 (ie diagonal line 1) D1 and the diagonal line of the cross section of the second isolator 208 (ie diagonal line 2) The included angle of D2 (that is, the above-mentioned first included angle) may be 45 degrees.
本发明实施例中，由于第一隔离体和第二隔离体的设置角度不同，天线单元的性能可能不同，因此可以根据天线单元的实际使用需求，合理的设置第一隔离体和第二隔离体的相对角度，如此可以使得天线单元稳定地工作在5G毫米波频段。In the embodiment of the present invention, due to the different installation angles of the first isolator and the second isolator, the performance of the antenna unit may be different. Therefore, the first isolator and the second isolator may be reasonably arranged according to the actual use requirements of the antenna unit. In this way, the antenna unit can work stably in the 5G millimeter wave frequency band.
可选的，本发明实施例中，结合上述图2，如图6所示，天线单元20还包括设置在第一绝缘体201和第二绝缘体206之间的第三绝缘体209，第三绝缘体209可以承载上述M个馈电臂205。Optionally, in the embodiment of the present invention, in conjunction with the foregoing FIG. 2, as shown in FIG. 6, the antenna unit 20 further includes a third insulator 209 disposed between the first insulator 201 and the second insulator 206, and the third insulator 209 may Carry the above M feed arms 205.
其中，对于上述M个馈电部中的每个馈电部202，穿过第三绝缘体209的馈电部202与一个馈电臂205电连接。Wherein, for each of the above-mentioned M power feeders 202, the power feeder 202 passing through the third insulator 209 is electrically connected to one power feeder arm 205.
需要说明的是，上述图6中的第三绝缘体209上的圆形填充部分用于表示第二隔离体208穿过第三绝缘体209，嵌入第一绝缘体201与接地体204电连接。It should be noted that the circular filling part on the third insulator 209 in FIG. 6 is used to indicate that the second insulator 208 passes through the third insulator 209 and is embedded in the first insulator 201 to be electrically connected to the grounding body 204.
示例性的，如图7所示，第三绝缘体209可以位于第一绝缘体201和第二绝缘体206之间，上述M个馈电臂205可以承载在第三绝缘体209内，且每个馈电臂与M个馈电部 中的不同馈电部202在第三绝缘体209中电连接。Exemplarily, as shown in FIG. 7, the third insulator 209 may be located between the first insulator 201 and the second insulator 206, the above-mentioned M feeder arms 205 may be carried in the third insulator 209, and each feeder arm The power feeder 202 which is different from the M power feeders is electrically connected in the third insulator 209.
可选的，本发明实施例中，上述第三绝缘体的横截面可以与第一绝缘体的横截面相同，例如矩形或圆形等任意可能的形状。Optionally, in this embodiment of the present invention, the cross section of the third insulator may be the same as the cross section of the first insulator, for example, any possible shape such as a rectangle or a circle.
当然，实际实现时，上述第三绝缘体的形状还可以为任意满足实际使用需求的形状，本发明实施例对此不作具体限定，具体可以根据实际使用需求确定。Of course, in actual implementation, the shape of the above-mentioned third insulator may also be any shape that meets actual use requirements, which is not specifically limited in the embodiment of the present invention, and may be specifically determined according to actual use requirements.
可选的，本发明实施例中，上述第三绝缘体的材料可以塑胶或者泡沫等任意可能的材料。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in this embodiment of the present invention, the material of the third insulator may be any possible material such as plastic or foam. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第三绝缘体的材料可以为相对介电常数和损耗角正切值均比较小的绝缘材料。Optionally, in the embodiment of the present invention, the material of the third insulator may be an insulating material with relatively small relative permittivity and loss tangent.
可选的，本发明实施例中，上述第三绝缘体的材料可以与上述第一绝缘体的材料相同，也可以与第一绝缘体的材料不同。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the material of the third insulator may be the same as the material of the first insulator, or may be different from the material of the first insulator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
示例性的，本发明实施例中，上述第三绝缘体的材料的相对介电常数可以为2.5，损耗角正切值可以为0.001。Exemplarily, in the embodiment of the present invention, the relative dielectric constant of the material of the third insulator may be 2.5, and the loss tangent value may be 0.001.
需要说明的是，本发明实施例，在承载上述M个馈电臂的前提下，第三绝缘体的材料的损耗角正切值越小，该第三绝缘体对天线单元的辐射效果的影响越小。也就是说，上述第三绝缘体的材料的损耗角正切值越小，第三绝缘体对天线单元的工作性能影响越小，天线单元的辐射效果越好。It should be noted that, in the embodiment of the present invention, under the premise of carrying the foregoing M feed arms, the smaller the loss tangent value of the material of the third insulator, the smaller the influence of the third insulator on the radiation effect of the antenna unit. That is to say, the smaller the loss tangent value of the material of the third insulator, the smaller the influence of the third insulator on the working performance of the antenna unit and the better the radiation effect of the antenna unit.
本发明实施例中，上述第一隔离体可以用于隔离接地体向第一隔离体所在方向辐射的电磁波，从而可以使得本发明实施例提供的天线单元具有方向性。In the embodiment of the present invention, the above-mentioned first isolator may be used to isolate electromagnetic waves radiated from the grounding body in the direction where the first isolator is located, so that the antenna unit provided by the embodiment of the present invention can be directional.
可选的，本发明实施例中，上述第一隔离体可以为设置在第一绝缘体中的金属片或者金属柱等任意具有隔离功能的部件。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the above-mentioned first insulator may be any component having an isolation function, such as a metal sheet or a metal column provided in the first insulator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第一隔离体可以为N个第一金属柱，第一金属柱的长度可以小于M个馈电臂与接地体之间的距离，N为大于1的整数。Optionally, in the embodiment of the present invention, the above-mentioned first isolator may be N first metal pillars, and the length of the first metal pillar may be less than the distance between the M feed arms and the ground, and N is greater than 1. Integer.
示例性的，如图7所示，为本发明实施例提供的天线单元在Z轴方向上的剖视图。第一金属柱(即第一隔离体)203的长度可以等于第一绝缘体201的厚度。Exemplarily, as shown in FIG. 7, it is a cross-sectional view in the Z-axis direction of the antenna unit provided by an embodiment of the present invention. The length of the first metal pillar (ie, the first spacer) 203 may be equal to the thickness of the first insulator 201.
可选的，本发明实施例中，上述第一金属柱的直径可以根据第一绝缘体的尺寸确定。具体的，第一金属柱的直径可以根据第一绝缘体的横截面的面积确定。Optionally, in the embodiment of the present invention, the diameter of the above-mentioned first metal pillar may be determined according to the size of the first insulator. Specifically, the diameter of the first metal pillar may be determined according to the cross-sectional area of the first insulator.
可选的，本发明实施例中，上述第一金属柱的材料可以为金、银，或者铜等任意可能的材料。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in this embodiment of the present invention, the material of the above-mentioned first metal pillar may be any possible material such as gold, silver, or copper. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第一金属柱可以为在第一盲孔中浇筑金属材料形成的金属柱。其中，该第一盲孔可以为设置在第一绝缘体中。Optionally, in the embodiment of the present invention, the above-mentioned first metal pillar may be a metal pillar formed by pouring a metal material in the first blind hole. Wherein, the first blind hole may be provided in the first insulator.
可以理解，本发明实施例提供的天线单元(具体可以为第一绝缘体中)可以设置有N个第一盲孔，并在该N个第一盲孔中分别设置一个第一金属柱。It can be understood that the antenna unit (specifically, it may be in the first insulator) provided in the embodiment of the present invention may be provided with N first blind holes, and a first metal pillar is respectively provided in the N first blind holes.
需要说明的是，实际实现时，上述第一金属柱还可以为通过其它任意可能的工艺实现，具体可以根据实际使用需求确定，本发明实施例不作限定。It should be noted that, in actual implementation, the above-mentioned first metal pillar may also be implemented through any other possible process, which may be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述N个第一盲孔可以均匀地分布在第一绝缘体中，如此可以使得上述N个第一金属柱均匀地分布在第一绝缘体中。也就是说，上述N个第一金属 柱中任意相邻的两个第一金属柱之间的距离可以相等。Optionally, in the embodiment of the present invention, the N first blind holes may be evenly distributed in the first insulator, so that the N first metal pillars may be evenly distributed in the first insulator. In other words, the distance between any two adjacent first metal pillars among the above N first metal pillars may be equal.
本发明实施例中，由于打孔的工艺比较简单，因此可以通过在天线单元中设置盲孔，并在盲孔中设置第一金属柱的方式，简化上述第一隔离体的加工工艺，如此可以减小天线单元的加工难度。In the embodiment of the present invention, since the punching process is relatively simple, the processing process of the first isolator can be simplified by arranging blind holes in the antenna unit and setting the first metal pillars in the blind holes. Reduce the processing difficulty of the antenna unit.
需要说明的是，本发明实施例中，上述N个第一金属柱中相邻的两个第一金属柱之间的距离越小，该N个第一金属柱(即第一隔离体)与接地体形成的目标金属背腔的辐射效果越好，且该N个第一金属柱隔离接地体向该N个第一金属柱所在方向辐射的电磁波的效果越好。也就是说，天线单元中设置的第一金属柱越密，天线单元的辐射效果越好。It should be noted that, in the embodiment of the present invention, the smaller the distance between the two adjacent first metal pillars among the N first metal pillars, the smaller the distance between the N first metal pillars (ie, the first spacers) and the The target metal back cavity formed by the ground body has a better radiation effect, and the N first metal pillars have a better effect of isolating electromagnetic waves radiated from the ground body in the direction where the N first metal pillars are located. In other words, the denser the first metal pillars arranged in the antenna unit, the better the radiation effect of the antenna unit.
可选的，本发明实施例中，上述N个第一金属柱中相邻的两个第一金属柱之间的距离可以小于或等于第一目标数值。该第一目标数值可以为该N个第一金属柱和接地体(即目标金属背腔)与上述M个馈电臂耦合产生的电磁波的最小波长的四分之一。Optionally, in the embodiment of the present invention, the distance between two adjacent first metal pillars among the foregoing N first metal pillars may be less than or equal to the first target value. The first target value may be a quarter of the minimum wavelength of the electromagnetic waves generated by coupling the N first metal pillars and the grounding body (that is, the target metal back cavity) and the foregoing M feeding arms.
本发明实施例中，由于在第一绝缘体中设置第一金属柱的工艺比较简单、容易实现，因此将上述第一隔离体设置为上述N个第一金属柱，可以简化本发明实施例提供的天线单元的制作工艺。In the embodiment of the present invention, since the process of arranging the first metal pillars in the first insulator is relatively simple and easy to implement, arranging the first isolator as the N first metal pillars can simplify the process provided by the embodiment of the present invention. The manufacturing process of the antenna unit.
可选的，本发明实施例中，第二隔离体可以为K个第二金属柱，该第二金属柱的长度可以大于或等于目标辐射体与接地体之间的距离，K为大于1的整数。Optionally, in the embodiment of the present invention, the second isolator may be K second metal pillars, and the length of the second metal pillars may be greater than or equal to the distance between the target radiator and the ground, and K is greater than 1. Integer.
示例性的，如图7所示，第二金属柱(即第二隔离体)208的长度可以等于目标辐射体207与设置在第一绝缘体201底部的接地体之间的距离。Exemplarily, as shown in FIG. 7, the length of the second metal pillar (ie, the second isolator) 208 may be equal to the distance between the target radiator 207 and the ground provided at the bottom of the first insulator 201.
可选的，本发明实施例中，上述第二金属柱的直径可以根据第一绝缘体的尺寸和第二绝缘体确定。具体的，第二金属柱的直径可以根据第一绝缘体的横截面的面积和第二绝缘体的横截面的面积确定。Optionally, in the embodiment of the present invention, the diameter of the second metal pillar may be determined according to the size of the first insulator and the second insulator. Specifically, the diameter of the second metal pillar may be determined according to the cross-sectional area of the first insulator and the cross-sectional area of the second insulator.
可选的，本发明实施例中，上述第二金属柱的材料可以为金、银，或者铜等任意可能的材料。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in this embodiment of the present invention, the material of the above-mentioned second metal pillar may be any possible material such as gold, silver, or copper. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，上述第二金属柱可以为在第一通孔中浇筑金属材料形成的金属柱。其中，该第一通孔可以为设置在第一绝缘体和第二绝缘体中。Optionally, in the embodiment of the present invention, the above-mentioned second metal pillar may be a metal pillar formed by pouring a metal material in the first through hole. Wherein, the first through hole may be provided in the first insulator and the second insulator.
可以理解，本发明实施例提供的天线单元(具体可以为第一绝缘体中)可以设置有K个第一通孔，并在该K个第一通孔中分别设置一个第二金属柱。It can be understood that the antenna unit (specifically, in the first insulator) provided by the embodiment of the present invention may be provided with K first through holes, and each of the K first through holes is provided with a second metal pillar.
需要说明的是，实际实现时，上述第二金属柱还可以为通过其它任意可能的工艺实现，具体可以根据实际使用需求确定，本发明实施例不作限定。It should be noted that, in actual implementation, the above-mentioned second metal pillar may also be implemented through any other possible process, which may be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention.
可选的，本发明实施例中，上述K个第一通孔可以均匀地分布在第一绝缘体和第二绝缘体中，如此可以使得上述K个第二金属柱均匀地分布在第一绝缘体和第二绝缘体中。也就是说，上述K个第二金属柱中任意相邻的两个第二金属柱之间的距离可以相等。Optionally, in the embodiment of the present invention, the K first through holes may be evenly distributed in the first insulator and the second insulator, so that the K second metal pillars may be evenly distributed in the first insulator and the second insulator. Two insulators. In other words, the distance between any two adjacent second metal pillars among the K second metal pillars may be equal.
本发明实施例中，由于打孔的工艺比较简单，因此可以通过在天线单元中设置通孔，并在盲孔中设置第二金属柱的方式，简化上述第二隔离体的加工工艺，如此可以减小天线单元的加工难度。In the embodiment of the present invention, since the punching process is relatively simple, it is possible to simplify the processing process of the second isolator by arranging through holes in the antenna unit and arranging the second metal pillars in the blind holes. Reduce the processing difficulty of the antenna unit.
需要说明的是，本发明实施例中，上述K个第二金属柱中相邻的两个第二金属柱之间的距离越小，该K个第二金属柱(即第二隔离体)隔离接地体、第一隔离体和目标辐射体向该K个第二金属柱所在方向辐射的电磁波的效果越好。也就是说，天线单元中设置的第二金属柱越密，天线单元的辐射效果越好。It should be noted that, in the embodiment of the present invention, the smaller the distance between two adjacent second metal pillars among the K second metal pillars is, the K second metal pillars (ie, the second spacers) are isolated from each other. The grounding body, the first isolator and the target radiator have better electromagnetic waves radiating in the direction where the K second metal pillars are located. That is to say, the denser the second metal pillars arranged in the antenna unit, the better the radiation effect of the antenna unit.
可选的，本发明实施例中，上述K个第二金属柱中相邻的两个第二金属柱之间的距离可以小于或等于第二目标数值。该第二目标数值可以为目标辐射体与上述M个馈电臂耦合产生的电磁波的最小波长的四分之一。Optionally, in the embodiment of the present invention, the distance between two adjacent second metal pillars among the K second metal pillars may be less than or equal to the second target value. The second target value may be a quarter of the minimum wavelength of the electromagnetic wave generated by the coupling between the target radiator and the M feed arms.
本发明实施例中，由于在天线单元中设置第二金属柱的工艺比较简单、容易实现，因此将上述第二隔离体设置为上述K个第二金属柱，可以简化本发明实施例提供的天线单元的制作工艺。In the embodiment of the present invention, since the process of arranging the second metal pillars in the antenna unit is relatively simple and easy to implement, arranging the above-mentioned second isolator as the above K second metal pillars can simplify the antenna provided by the embodiment of the present invention. The production process of the unit.
可选的，本发明实施例中，上述目标辐射体可以为多边形辐射体或圆形辐射体。Optionally, in the embodiment of the present invention, the above-mentioned target radiator may be a polygonal radiator or a circular radiator.
可选的，本发明实施例中，上述目标辐射体可以为矩形辐射体、六边形辐射体或正方形辐射体等任意可能的多边形辐射体。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the above-mentioned target radiator may be any possible polygonal radiator, such as a rectangular radiator, a hexagonal radiator, or a square radiator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
当然，实际实现时，上述目标辐射体的形状还可以为其它任意可能的形状，具体可以根据实际使用需求确定，本发明实施例不作限定。Of course, in actual implementation, the shape of the above-mentioned target radiator may also be any other possible shape, which may be specifically determined according to actual use requirements, and is not limited in the embodiment of the present invention.
本发明实施例中，由于上述目标辐射体与上述M个馈电臂耦合产生的电磁波的频率与目标辐射体的参数(例如目标辐射体的形状和面积等)有关，具体的，目标辐射体的面积越小，目标辐射体与上述M个馈电臂耦合产生的电磁波的频率越高，因此可以根据实际使用需求，选择参数合适的目标辐射体(例如形状合适的目标辐射体和/或面积合适的目标辐射体等)。如此，可以使得本发明实施例提供的天线单元工作在5G毫米波频段内。In the embodiment of the present invention, the frequency of the electromagnetic wave generated by the coupling between the target radiator and the M feed arms is related to the parameters of the target radiator (for example, the shape and area of the target radiator, etc.). Specifically, the frequency of the target radiator The smaller the area, the higher the frequency of the electromagnetic wave generated by the coupling between the target radiator and the aforementioned M feed arms. Therefore, the target radiator with appropriate parameters can be selected according to actual use requirements (for example, a target radiator with a suitable shape and/or a suitable area). Target radiator, etc.). In this way, the antenna unit provided by the embodiment of the present invention can be made to work in the 5G millimeter wave frequency band.
可选的，本发明实施例中，目标辐射体可以承载在第二绝缘体上，也可以承载在第二绝缘体中。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the target radiator may be carried on the second insulator or in the second insulator. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
示例性的，如图7所示，目标辐射体207可以承载在第二绝缘体206上。Exemplarily, as shown in FIG. 7, the target radiator 207 may be carried on the second insulator 206.
本发明实施例中，由于目标辐射体所在的位置不同，天线单元的性能也可能不同，因此可以根据实际使用需求，灵活的设置上述目标辐射体的位置，从而可以使得天线单元的设计更加灵活。In the embodiment of the present invention, due to different locations of the target radiator, the performance of the antenna unit may also be different. Therefore, the location of the target radiator can be flexibly set according to actual use requirements, thereby making the design of the antenna unit more flexible.
需要说明的是，本发明实施例中，上述各个附图所示的天线单元均是以结合本发明实施例中的一个附图为例示例性的说明的。具体实现时，上述各个附图所示的天线单元还可以结合上述实施例中示意的其它可以结合的任意附图实现，此处不再赘述。It should be noted that, in the embodiment of the present invention, the antenna units shown in each of the foregoing drawings are all exemplified in conjunction with a drawing in the embodiment of the present invention. During specific implementation, the antenna units shown in each of the above figures can also be implemented in combination with any other figures illustrated in the above embodiments that can be combined, and will not be repeated here.
本发明实施例提供一种电子设备，该电子设备可以包括上述如图2至图7中任一实施例提供的天线单元。对于天线单元的描述具体可以参见上述实施例中对天线单元的相关描述，此处不再赘述。An embodiment of the present invention provides an electronic device, and the electronic device may include the antenna unit provided in any one of the above-mentioned embodiments in FIG. 2 to FIG. 7. For the specific description of the antenna unit, reference may be made to the relevant description of the antenna unit in the foregoing embodiment, which will not be repeated here.
本发明实施例中的电子设备可以为移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为个人计算机(personal computer，PC)、电视机(television，TV)、服务器或柜员机等，本发明实施例不作具体限定。The electronic device in the embodiment of the present invention may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle terminal, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant). The non-mobile electronic device may be a personal computer (PC), a television (television, TV), a server, or a teller machine, etc., which is not specifically limited in the embodiment of the present invention.
可选的，本发明实施例中，电子设备的壳体中可以设置有至少一个第一凹槽，该至少一个第一凹槽中的每个第一凹槽可以设置至少一个天线单元。Optionally, in this embodiment of the present invention, at least one first groove may be provided in the housing of the electronic device, and each of the at least one first groove may be provided with at least one antenna unit.
本发明实施例中，可以通过在电子设备的壳体中设置上述第一凹槽，并在每个第一凹槽内设置至少一个本发明实施例提供的天线单元，实现在电子设备中集成至少一个本发明 实施例提供的天线单元，从而可以使得终端设备中包括本发明实施例提供的天线单元组成的天线阵列。In the embodiment of the present invention, the above-mentioned first groove is provided in the housing of the electronic device, and at least one antenna unit provided in the embodiment of the present invention is arranged in each first groove, so as to realize the integration of at least An antenna unit provided in an embodiment of the present invention can thereby make a terminal device include an antenna array composed of the antenna units provided in the embodiment of the present invention.
可选的，本发明实施例中，上述第一凹槽可以设置在电子设备的壳体的边框中。Optionally, in the embodiment of the present invention, the above-mentioned first groove may be provided in the frame of the housing of the electronic device.
本发明实施例中，如图8所示，电子设备3可以包括壳体30。壳体30可以包括第一边框31，与第一边框31连接的第二边框32，与第二边框32连接的第三边框33，与第三边框33和第一边框31均连接的第四边框34。电子设备3还可以包括与第二边框32和第四边框34均连接的地板35，以及由第三边框33、部分第二边框32和部分第四边框34组成的第一天线36。其中，第二边框32上设置有第一凹槽37。如此，本发明实施例提供的天线单元可以设置该第一凹槽内，从而可以使得电子设备中包括本发明实施例提供的天线单元形成的阵列天线模组，进而可以实现在电子设备中集成本发明实施例提供的天线单元的设计。In the embodiment of the present invention, as shown in FIG. 8, the electronic device 3 may include a housing 30. The housing 30 may include a first frame 31, a second frame 32 connected to the first frame 31, a third frame 33 connected to the second frame 32, and a fourth frame connected to both the third frame 33 and the first frame 31 34. The electronic device 3 may further include a floor 35 connected to both the second frame 32 and the fourth frame 34, and a first antenna 36 composed of a third frame 33, a part of the second frame 32 and a part of the fourth frame 34. Wherein, a first groove 37 is provided on the second frame 32. In this way, the antenna unit provided in the embodiment of the present invention can be disposed in the first groove, so that the electronic device can include the array antenna module formed by the antenna unit provided in the embodiment of the present invention, and the integration of the device in the electronic device can be realized. The design of the antenna unit provided by the embodiment of the invention.
其中，上述地板可以为电子设备中的PCB或金属中框，或者为电子设备的显示屏等任意可以作为虚拟地的部分。Wherein, the above-mentioned floor can be a PCB or a metal middle frame in an electronic device, or a display screen of an electronic device, etc., which can be any part that can be used as a virtual ground.
需要说明的是，本发明实施例中，上述第一天线可以为电子设备的第二代移动通信***(即2G***)、第三代移动通信***(即3G***)，以及***移动通信***(即4G***)等***的通信天线。本发明实施例提供的天线单元可以为电子设备的5G***的天线。It should be noted that in the embodiment of the present invention, the above-mentioned first antenna may be a second-generation mobile communication system (ie 2G system), a third-generation mobile communication system (ie 3G system), and a fourth-generation mobile communication system of an electronic device. The communication antenna of the system (ie 4G system) and other systems. The antenna unit provided in the embodiment of the present invention may be an antenna of a 5G system of an electronic device.
可选的，本发明实施例中，上述第一边框、第二边框、第三边框和第四边框可以依次首尾连接形成封闭式边框；或者，上述第一边框、第二边框、第三边框和第四边框中的部分边框可以连接形成半封闭式边框；或者，上述第一边框、第二边框、第三边框和第四边框可以互不连接形成的开放式边框。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the first frame, the second frame, the third frame, and the fourth frame may be connected end to end in sequence to form a closed frame; or, the first frame, the second frame, the third frame, and the Part of the frame in the fourth frame may be connected to form a semi-closed frame; or, the above-mentioned first frame, second frame, third frame, and fourth frame may be disconnected from each other to form an open frame. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
需要说明的是，上述图8所示的壳体30包括的边框是以第一边框31、第二边框32、第三边框33和第四边框34依次首尾连接形成的封闭式边框为例进行示例性的说明的，其并不对本发明实施例造成任何限定。对于上述第一边框、第二边框、第三边框和第四边框之间以其它连接方式(部分边框连接或各个边框互不连接)形成的边框，其实现方式与本发明实施例提供的实现方式类似，为避免重复，此处不再赘述。It should be noted that the frame included in the housing 30 shown in FIG. 8 is an example of a closed frame formed by connecting the first frame 31, the second frame 32, the third frame 33, and the fourth frame 34 in turn. For illustrative purposes, it does not impose any limitation on the embodiments of the present invention. For the frame formed by other connection methods (partial frame connection or non-connection of each frame) between the above-mentioned first frame, second frame, third frame, and fourth frame, the implementation manner is the same as the implementation manner provided by the embodiment of the present invention Similar, in order to avoid repetition, I will not repeat them here.
可选的，本发明实施例中，上述至少一个第一凹槽可以设置在壳体的同一边框中，也可以设置在不同的边框中。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, the above-mentioned at least one first groove may be arranged in the same frame of the housing, or may be arranged in different frames. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，一个第一凹槽(上述至少一个第一凹槽中的任意一个)可以设置在壳体的第一边框、第二边框、第三边框或第四边框中。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, a first groove (any one of the above-mentioned at least one first groove) may be provided in the first frame, the second frame, the third frame, or the fourth frame of the housing . Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
需要说明的是，本发明实施例中，上述图8是以第一凹槽37设置在壳体30的第二边框32上，且第一凹槽37的开口方向为如图8所示的坐标系的Z轴正向为例进行示例性说明的。It should be noted that, in the embodiment of the present invention, in FIG. 8 above, the first groove 37 is provided on the second frame 32 of the housing 30, and the opening direction of the first groove 37 is the coordinate shown in FIG. The positive direction of the Z-axis of the system is taken as an example.
可以理解，本发明实施例中，如图8所示，当上述第一凹槽设置在壳体的第一边框上时，第一凹槽的开口方向可以为X轴正向；当上述第一凹槽设置在壳体的第三边框上时，第一凹槽的开口方向可以为X轴反向；当上述第一凹槽设置在壳体的第四边框上时，第一凹槽的开口方向可以为Z轴反向。It can be understood that, in the embodiment of the present invention, as shown in FIG. 8, when the first groove is provided on the first frame of the housing, the opening direction of the first groove may be the positive X-axis; When the groove is arranged on the third frame of the housing, the opening direction of the first groove can be the reverse of the X axis; when the first groove is arranged on the fourth frame of the housing, the opening of the first groove The direction can be the reverse of the Z axis.
可选的，本发明实施例中，电子设备的壳体中可以设置有多个第一凹槽，且每个第一凹槽内可以设置有一个本发明实施例提供的天线单元。如此，这多个天线单元可以在电子设备中形成天线阵列，从而可以提高电子设备的天线性能。Optionally, in the embodiment of the present invention, multiple first grooves may be provided in the housing of the electronic device, and each first groove may be provided with one antenna unit provided in the embodiment of the present invention. In this way, the multiple antenna elements can form an antenna array in the electronic device, so that the antenna performance of the electronic device can be improved.
本发明实施例中，如图9所示，为本发明实施例提供的天线单元辐射频率为28GHz的信号时，天线单元辐射的方向图；如图10所示，为本发明实施例提供的天线单元辐射频率为39GHz的信号时，天线单元辐射的方向图。由图9和图10可见，天线单元在28GHz时的最大辐射方向，与天线单元辐射在35GHz时的最大辐射方向相同，因此本发明实施例提供的天线单元适合组成宽带的天线阵列。如此，电子设备可以设置至少两个第一凹槽，并在每个第一凹槽中设置一个本发明实施例提供的天线单元，从而可以使得电子设备中包括该天线阵列，进而可以提高电子设备的天线性能。In the embodiment of the present invention, as shown in FIG. 9, it is the radiation pattern of the antenna unit when the antenna unit provided by the embodiment of the present invention radiates a signal with a frequency of 28 GHz; as shown in FIG. 10, it is the antenna provided by the embodiment of the present invention. When the unit radiates a signal with a frequency of 39 GHz, the radiation pattern of the antenna unit. It can be seen from FIGS. 9 and 10 that the maximum radiation direction of the antenna unit at 28 GHz is the same as the maximum radiation direction of the antenna unit at 35 GHz. Therefore, the antenna unit provided by the embodiment of the present invention is suitable for forming a broadband antenna array. In this way, the electronic device can be provided with at least two first grooves, and each first groove is provided with an antenna unit provided by the embodiment of the present invention, so that the electronic device can include the antenna array, thereby improving the electronic device Antenna performance.
可选的，本发明实施例中，在电子设备中集成多个本发明实施例提供的天线单元的情况下，相邻两个天线单元之间的距离可以根据天线单元的隔离度和该多个天线单元形成的天线阵列的扫描角度确定。具体可以根据实际使用需求确定，本发明实施例不作限定。Optionally, in the embodiment of the present invention, when multiple antenna units provided in the embodiments of the present invention are integrated in an electronic device, the distance between two adjacent antenna units may be based on the isolation of the antenna units and the multiple antenna units. The scanning angle of the antenna array formed by the antenna unit is determined. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
可选的，本发明实施例中，电子设备的壳体上设置的第一凹槽的数量可以根据第一凹槽的尺寸和电子设备的壳体的尺寸确定，本发明实施例对此不作限定。Optionally, in the embodiment of the present invention, the number of first grooves provided on the housing of the electronic device may be determined according to the size of the first groove and the size of the housing of the electronic device, which is not limited in the embodiment of the present invention .
示例性的，假设电子设备的壳体的第二边框上设置有多个第一凹槽(未在图11中示出)，且每个第一凹槽中设置有一个天线单元，那么，如图11所示，天线单元可以设置在第二边框32中的一个第一凹槽内，该天线单元中的目标辐射体207可以位于第二绝缘体206上，且第二隔离体208可以穿过第二绝缘体206和第一绝缘体与接地体电连接。其中，第一绝缘体和接地体未在图中示出。Exemplarily, assuming that the second frame of the housing of the electronic device is provided with a plurality of first grooves (not shown in FIG. 11), and each first groove is provided with an antenna unit, then, as As shown in FIG. 11, the antenna unit can be arranged in a first groove in the second frame 32, the target radiator 207 in the antenna unit can be located on the second insulator 206, and the second insulator 208 can pass through the first insulator 206. The two insulators 206 and the first insulator are electrically connected to the grounding body. Among them, the first insulator and the grounding body are not shown in the figure.
需要说明的是，本发明实施例中，上述图11是以第二边框上设置的4个第一凹槽(设置有4个天线单元)为例进行示例性说明的，其并不对本发明实施例造成任何限定。可以理解，实际实现时，第二边框上设置的第一凹槽的数量可以为任意可能的数值，具体可以根据实际使用需求确定，本发明实施例不做任何限定。It should be noted that, in the embodiment of the present invention, the above-mentioned FIG. 11 exemplifies the four first grooves provided on the second frame (four antenna units are provided), which does not implement the present invention. Examples cause any limitations. It can be understood that, in actual implementation, the number of first grooves provided on the second frame can be any possible value, which can be specifically determined according to actual use requirements, and the embodiment of the present invention does not make any limitation.
本发明实施例提供一种电子设备，该电子设备可以包括天线单元。该天线单元可以包括：第一绝缘体，设置在第一绝缘体中的M个馈电部和第一隔离体，设置在第一绝缘体底部的接地体，M个馈电臂，第二绝缘体，第二绝缘体承载的目标辐射体，以及设置在第一绝缘体和第二绝缘体中的第二隔离体；其中，第一隔离体和第二隔离体均与接地体电连接，第二隔离体围绕该M个馈电部设置，该M个馈电部围绕第一隔离体设置、且与接地体绝缘，每个馈电部分别与一个馈电臂的第一端电连接，该M个馈电臂位于第一绝缘体和第二绝缘体之间，且按照第一顺序环绕设置，以及每个馈电臂均与第一隔离体、接地体和目标辐射体耦合，M为大于1的整数。通过该方案，由于第一隔离体和第二隔离体均与接地体电连接，且第二隔离体围绕M个馈电部设置，M个馈电部围绕第一隔离体设置，因此第一隔离体和接地体可以组成一个金属背腔，并且由于馈电臂可以与第一隔离体、接地体和目标辐射体耦合，即馈电臂可以与金属背腔(第一隔离体和接地体组成的)和目标辐射体耦合。如此，在馈电臂接收到交流信号的情况下，馈电臂可以与金属背腔和目标辐射体进行耦合，从而可以使得金属背腔和目标辐射体产生感应电流，进而可以使得馈电臂、金属背腔和目标辐射体均辐射一定频率的电磁波；并且，由于馈电臂与金属背腔和目标辐射体耦合产生的感应电流的电流路径可以有多个(例如从馈电臂到金属背腔再到馈电臂的电流 路径，金属背腔上形成的电流路径，目标辐射体上形成的电流路径等)，因此馈电臂上的电流经由金属背腔和目标辐射体产生的电磁波的频率也可以有多个，如此可以使得天线单元覆盖多个的频段，从而可以增加天线单元的带宽。以及由于M个馈电臂按照第一顺序环绕设置，因此可以使得该M个馈电臂中的各个馈电臂之间的距离较大，如此可以减小该M个馈电臂之间的干扰，从而可以提高天线单元的端口的隔离度，进而可以进一步提高天线单元的性能。An embodiment of the present invention provides an electronic device, which may include an antenna unit. The antenna unit may include: a first insulator, M feeding parts and a first isolator arranged in the first insulator, a grounding body arranged at the bottom of the first insulator, M feeding arms, a second insulator, and a second insulator. The target radiator carried by the insulator, and the second insulator arranged in the first insulator and the second insulator; wherein, the first insulator and the second insulator are both electrically connected to the ground, and the second insulator surrounds the M The M power feeders are arranged around the first isolator and are insulated from the ground body. Each power feeder is electrically connected to the first end of a power feeder arm, and the M power feeders are located at the first end. Between an insulator and a second insulator and arranged in a circle in the first order, and each feeding arm is coupled with the first insulator, the grounding body and the target radiator, M is an integer greater than 1. With this solution, since both the first isolator and the second isolator are electrically connected to the grounding body, and the second isolator is arranged around the M power feeders, and the M power feeders are arranged around the first isolator, the first isolator is The body and the grounding body can form a metal back cavity, and because the feeding arm can be coupled with the first isolator, the grounding body and the target radiator, that is, the feeding arm can be connected to the metal backing cavity (the first isolating body and the grounding body are composed ) Is coupled to the target radiator. In this way, when the feeding arm receives an AC signal, the feeding arm can be coupled with the metal back cavity and the target radiator, so that the metal back cavity and the target radiator can generate an induced current, thereby making the feeding arm, Both the metal-backed cavity and the target radiator radiate electromagnetic waves of a certain frequency; and there can be multiple current paths for the induced current due to the coupling between the feeding arm and the metal-backed cavity and the target radiator (for example, from the feeding arm to the metal-backed cavity). Then to the current path of the feeding arm, the current path formed on the metal back cavity, the current path formed on the target radiator, etc.), so the frequency of the electromagnetic wave generated by the current on the feeding arm through the metal back cavity and the target radiator is also There can be multiple, so that the antenna unit can cover multiple frequency bands, thereby increasing the bandwidth of the antenna unit. And since the M feed arms are arranged around in the first order, the distance between each of the M feed arms can be made larger, so that the interference between the M feed arms can be reduced Therefore, the isolation degree of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。The embodiments of the present invention are described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present invention, many forms can be made without departing from the purpose of the present invention and the scope of protection of the claims, all of which fall within the protection of the present invention.

Claims (15)

  1. 一种天线单元，所述天线单元包括：第一绝缘体，设置在所述第一绝缘体中的M个馈电部和第一隔离体，设置在所述第一绝缘体底部的接地体，M个馈电臂，第二绝缘体，所述第二绝缘体承载的目标辐射体，以及设置在所述第一绝缘体和所述第二绝缘体中的第二隔离体；An antenna unit, the antenna unit comprising: a first insulator, M feeders and a first insulator arranged in the first insulator, a grounding body arranged at the bottom of the first insulator, and M feeders An electric arm, a second insulator, a target radiator carried by the second insulator, and a second insulator arranged in the first insulator and the second insulator;
    其中，所述第一隔离体和所述第二隔离体均与所述接地体电连接，所述第二隔离体围绕所述M个馈电部设置，所述M个馈电部围绕所述第一隔离体设置、且与所述接地体绝缘，每个馈电部分别与一个馈电臂电连接，所述M个馈电臂位于所述第一绝缘体和所述第二绝缘体之间，且按照第一顺序环绕设置，以及每个馈电臂均与所述第一隔离体、所述接地体和所述目标辐射体耦合，M为大于1的整数。Wherein, the first isolator and the second isolator are both electrically connected to the grounding body, the second isolator is arranged around the M power feeders, and the M power feeders surround the The first isolator is provided and insulated from the grounding body, each feeder is electrically connected to a feeder arm, and the M feeder arms are located between the first insulator and the second insulator, And it is arranged in a circle in a first order, and each feeding arm is coupled with the first isolator, the grounding body and the target radiator, and M is an integer greater than 1.
  2. 根据权利要求1所述的天线单元，其中，所述每个馈电臂在第一平面上的投影均与所述第一隔离体在所述第一平面上的投影相交，所述第一平面为所述第一绝缘体上所述M个馈电部的横截面所在平面。The antenna unit according to claim 1, wherein the projection of each feed arm on the first plane intersects the projection of the first isolator on the first plane, and the first plane Is the plane where the cross-sections of the M power feeding parts on the first insulator are located.
  3. 根据权利要求1所述的天线单元，其中，所述M个馈电臂按照第一顺序，沿所述第二隔离体的内侧壁，以从馈电臂的第一端到馈电臂的第二端的次序设置。The antenna unit according to claim 1, wherein the M feed arms are along the inner side wall of the second isolator in a first order from the first end of the feed arm to the first end of the feed arm. The order setting of the two ends.
  4. 根据权利要求1所述的天线单元，其中，所述第二隔离体的横截面为矩形，所述M个馈电臂包括第一馈电臂、第二馈电臂、第三馈电臂和第四馈电臂，所述第一馈电臂、所述第二馈电臂、所述第三馈电臂和所述第四馈电臂沿所述第二隔离体的内侧壁顺序设置；The antenna unit according to claim 1, wherein the cross section of the second isolator is rectangular, and the M feeding arms include a first feeding arm, a second feeding arm, and a third feeding arm. A fourth feeding arm, the first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm are sequentially arranged along the inner side wall of the second isolator;
    其中，所述第一馈电臂和第三馈电臂均与所述第二隔离体的第一内侧壁平行，所述第二馈电臂和第四馈电臂均与所述第二隔离体的第二内侧壁平行，所述第一内侧壁与所述第二内侧壁垂直。Wherein, the first feeding arm and the third feeding arm are both parallel to the first inner side wall of the second isolator, and the second feeding arm and the fourth feeding arm are both isolated from the second The second inner side wall of the body is parallel, and the first inner side wall is perpendicular to the second inner side wall.
  5. 根据权利要求4所述的天线单元，其中，所述M个馈电臂位于同一平面上。The antenna unit according to claim 4, wherein the M feed arms are located on the same plane.
  6. 根据权利要求1至5中任一项所述的天线单元，其中，所述M个馈电部贯穿所述第一绝缘体。The antenna unit according to any one of claims 1 to 5, wherein the M power feeders penetrate the first insulator.
  7. 根据权利要求1至5中任一项所述的天线单元，其中，所述第二隔离体的横截面为矩形，所述M个馈电部为四个馈电部，所述四个馈电部中的两个馈电部位于所述第二隔离体的横截面的一条对角线上，所述四个馈电部中的另外两个馈电部位于所述第二隔离体的横截面的另一条对角线上。The antenna unit according to any one of claims 1 to 5, wherein the cross section of the second isolator is rectangular, the M feeders are four feeders, and the four feeders Two of the power feeders are located on a diagonal of the cross section of the second isolator, and the other two power feeders of the four power feeders are located on the cross section of the second isolator On the other diagonal.
  8. 根据权利要求7所述的天线单元，其中，与位于同一条对角线上的两个馈电部电连接的信号源的幅值相等，相位相差180度。7. The antenna unit according to claim 7, wherein the signal sources electrically connected to the two feeders located on the same diagonal have the same amplitude and a phase difference of 180 degrees.
  9. 根据权利要求7所述的天线单元，其中，所述第一隔离体的横截面和所述第二隔离体的横截面均为矩形；The antenna unit according to claim 7, wherein the cross section of the first isolator and the cross section of the second isolator are both rectangular;
    所述第一隔离体的横截面上的任意一条对角线与所述第二隔离体的横截面上的任意一条对角线均不平行。Any diagonal line on the cross section of the first isolator is not parallel to any diagonal line on the cross section of the second isolator.
  10. 根据权利要求1至5中任一项所述的天线单元，其中，所述天线单元还包括设置在所述第一绝缘体和所述第二绝缘体之间的第三绝缘体，所述第三绝缘体承载所述M个馈电臂；The antenna unit according to any one of claims 1 to 5, wherein the antenna unit further comprises a third insulator disposed between the first insulator and the second insulator, and the third insulator carries The M feed arms;
    其中，对于所述M个馈电部中的每个馈电部，穿过所述第三绝缘体的馈电部与一个馈电臂电连接。Wherein, for each of the M power feeders, the power feeder passing through the third insulator is electrically connected to one power feeder arm.
  11. 根据权利要求1至5中任一项所述的天线单元，其中，所述第一隔离体为N个第一金属柱，所述第一金属柱的长度小于所述M个馈电臂与所述接地体之间的距离，N为大于1的整数。The antenna unit according to any one of claims 1 to 5, wherein the first isolator is N first metal pillars, and the length of the first metal pillars is less than the length of the M feed arms and the For the distance between the grounding bodies, N is an integer greater than 1.
  12. 根据权利要求1至5中任一项所述的天线单元，其中，所述第二隔离体为K个第二金属柱，所述第二金属柱的长度大于或等于所述目标辐射体与所述接地体之间的距离，K为大于1的整数。The antenna unit according to any one of claims 1 to 5, wherein the second isolator is K second metal pillars, and the length of the second metal pillars is greater than or equal to the target radiator and the For the distance between the grounding bodies, K is an integer greater than 1.
  13. 根据权利要求1至5中任一项所述的天线单元，其中，所述目标辐射体为多边形辐射体或圆形辐射体。The antenna unit according to any one of claims 1 to 5, wherein the target radiator is a polygonal radiator or a circular radiator.
  14. 一种电子设备，所述电子设备包括至少一个如权利要求1至13中任一项所述的天线单元。An electronic device comprising at least one antenna unit according to any one of claims 1 to 13.
  15. 根据权利要求14所述的电子设备，其中，所述电子设备的壳体中设置有至少一个第一凹槽，所述至少一个第一凹槽中的每个第一凹槽内设置至少一个所述天线单元。The electronic device according to claim 14, wherein at least one first groove is provided in the housing of the electronic device, and at least one first groove is provided in each of the at least one first grooves.述 Antenna unit.
PCT/CN2020/124418 2019-10-31 2020-10-28 Antenna unit and electronic device WO2021083219A1 (en)

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