WO2021083222A1 - 天线单元及电子设备 - Google Patents
天线单元及电子设备 Download PDFInfo
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- WO2021083222A1 WO2021083222A1 PCT/CN2020/124433 CN2020124433W WO2021083222A1 WO 2021083222 A1 WO2021083222 A1 WO 2021083222A1 CN 2020124433 W CN2020124433 W CN 2020124433W WO 2021083222 A1 WO2021083222 A1 WO 2021083222A1
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- antenna unit
- arm
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- 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, M feed arms, and a first isolator arranged in the first insulator, and A first grounding body at the bottom of the first insulator; wherein, the first isolating body is arranged around the M feeding arms and is electrically connected to the first grounding body, and each feeding part of the M feeding parts is connected to The first end of one feeding arm is electrically connected and insulated from the first grounding body, the M feeding arms are arranged in the first insulator in a first order, and each of the M feeding arms feeds The arms are all coupled with the first isolator and the first grounding body, and M is an integer greater than one.
- 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, M feed arms, and a first isolator arranged in the first insulator, and a first insulator arranged at the bottom of the first insulator.
- Grounding body wherein the first isolating body is arranged around the M feeding arms and is electrically connected to the first grounding body, and each feeding part of the M feeding parts is respectively connected to the first end of a feeding arm Electrically connected and insulated from the first grounding body, the M feeding arms are arranged in the first insulator in a first order, and each feeding arm of the M feeding arms is connected to the first isolating body and The first ground body is coupled, and M is an integer greater than one.
- the first isolator is electrically connected to the first ground
- the first isolator and the first ground can form a metal cavity
- the feed arm can be isolated from the first isolator and the first ground Body coupling, that is, the feeding arm can be coupled with the metal cavity composed of the first isolator and the first grounding body.
- the feeding arm can be coupled with the metal cavity, so that the metal cavity can generate an induced current, and thereby the feeding arm and the metal cavity can radiate a certain amount.
- the frequency of the electromagnetic wave generated by the current on the feed arm through the metal cavity can also be multiple, so that the antenna unit can obtain a wider bandwidth, which can increase the coverage of the antenna unit Frequency band.
- the M feed arms are arranged around the first insulator in the first order, the distance between each of the M feed arms can be made larger, so that the M feed arms can be reduced The interference between the arms can improve the isolation of the port of the antenna unit, and further improve the performance of the antenna unit.
- 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 schematic structural diagrams 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 schematic diagram of the structure of the antenna unit provided by the embodiment of the present invention.
- FIG. 7 is the third structural diagram 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.
- 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 grounding body, the second grounding body, etc. are used to distinguish different grounding bodies, rather than describing the specific order of the grounding bodies.
- 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 the first grounding body in the embodiment) can be used when the antenna unit is working. Coupling; these components are insulated from each other when the antenna unit is not working.
- 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, M feed arms, and a first isolator arranged in the first insulator, and The first grounding body at the bottom of the first insulator; wherein the first isolating body is arranged around the M feeding arms and is electrically connected to the first grounding body, and each feeding part of the M feeding parts is connected to one The first end of the feeding arm is electrically connected and insulated from the first grounding body, the M feeding arms are arranged in the first insulator in a first order, and each feeding arm of the M feeding arms Both are coupled with the first isolator and the first ground body, and M is an integer greater than 1.
- the first isolator is electrically connected to the first ground
- the first isolator and the first ground can form a metal cavity
- the feed arm can be isolated from the first isolator and the first ground Body coupling, that is, the feeding arm can be coupled with the metal cavity composed of the first isolator and the first grounding body.
- the feeding arm can be coupled with the metal cavity, so that the metal cavity can generate an induced current, and thereby the feeding arm and the metal cavity can radiate a certain amount.
- the frequency of the electromagnetic wave generated by the current on the feed arm through the metal cavity can also be multiple, so that the antenna unit can obtain a wider bandwidth, which can increase the coverage of the antenna unit Frequency band.
- the M feed arms are arranged around the first insulator in the first order, the distance between each of the M feed arms can be made larger, so that the M feed arms can be reduced The interference between the arms can improve the isolation of the port of the antenna unit, and further improve the performance of the antenna unit.
- the antenna unit provided in the embodiment of the present invention can be applied to electronic equipment, and can also be applied to other electronic equipment that needs to use the antenna unit, and can be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
- 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 (not shown in the figure), M feeders 201, M feed arms 202, and a first isolator 203 provided in the first insulator. , And a first grounding body 204 disposed at the bottom of the first insulator.
- the first isolator 203 can be arranged around the upper M feed arms 202 and can be electrically connected to the first ground body 204, and each feeder 201 of the M feeders can be connected to one feeder arm.
- the first end 202a is electrically connected to and can be insulated from the first grounding body 204, the M feeding arms 202 can be arranged in the first insulator in a first order, and each feeding arm of the M feeding arms 202 is coupled to the first isolator 203 and the first grounding body 204, and M is an integer greater than one.
- the first end of the feeding arm may be the feeding point in the antenna unit provided in the embodiment of the present invention.
- the first ground body and the first isolator are electrically connected, the first ground body and the first isolator can form a metal cavity (hereinafter referred to as the target metal cavity).
- the target metal cavity a metal cavity
- each of the aforementioned M feed arms can be coupled with the target metal cavity.
- the first insulator is not shown in FIG. 2 above.
- the above-mentioned power feeding part, power feeding arm, first grounding body and first isolating body may be arranged in a first insulator, such that the first insulator, power feeding part, feeding arm, first grounding body and first insulator
- the isolator can be formed as a whole to form an antenna unit provided by 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.
- the foregoing M feeding arms are four feeding arms (the structure of the four feeding arms is (May be the same), the four feeding arms can follow from the first end of the first feeding arm to the second end of the first feeding arm, and then from the first end to the second end of the second feeding arm.
- the order of the second end of the electric arm is arranged in the first insulator 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 be combined by LTCC technology to form An antenna unit provided by an embodiment of the present invention.
- the material of the first insulator may 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 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 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 first 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, so that the performance of the antenna unit can be relatively stable.
- the above-mentioned first grounding body may be a metal sheet arranged on the bottom of the first insulator, or a metal material sprayed on the bottom of the first insulator, or the like.
- the first grounding body may also be arranged at the bottom of the first insulator in any other possible form, which may 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 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 feeder arm through the feeder.
- the feeding arm can be coupled with the first ground body and the first isolator (that is, the target metal cavity formed by the first ground body and the first isolator), so that the target An induced current is generated on the metal cavity, and then the target metal cavity can radiate electromagnetic waves of multiple frequencies (due to the coupling of the feeding arm and the target metal cavity, there can be multiple current paths for the induced current, such as from the feeding The current path from the electric arm to the target metal cavity and then to the feed arm, the current path formed on the target metal cavity, etc. Therefore, the frequency of the electromagnetic wave radiated from the current on the feed arm through the target metal cavity can be Multiple).
- 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 first grounding body and the first isolating body (ie The target metal cavity formed by the first ground body and the first isolator), so that the target metal cavity can generate an induced current.
- the target metal cavity may be coupled with the feeding arm, so that the feeding arm generates an induced current (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 frequency range covered by the antenna unit can be 26.5GHz-29.5GHz and 37GHz-40GHz.
- the frequency range can also include multiple main millimeter wave frequency bands (such as 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.
- point a, point b, point c, and point d in Figure 3 above 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 -12.094dB, and the value marked by point b is -12.094dB. The value of return loss is -10.419dB, the value of return loss marked at point c is -10.551dB, and the value of return loss marked at point d is -11.839dB.
- the embodiment of the present invention provides an antenna unit. Since the first isolator is electrically connected to the first ground, the first isolator and the first ground can form a metal cavity, and because the feed arm can be isolated from the first The body is coupled with the first ground isolator, that is, the feeding arm can be coupled with the metal cavity composed of the first isolator and the first ground body. In this way, in the case that the feeding arm receives an AC signal, the feeding arm can be coupled with the metal cavity, so that the metal cavity can generate an induced current, and thereby the feeding arm and the metal cavity can radiate a certain amount.
- the frequency of the electromagnetic wave generated by the current on the feed arm through the metal cavity can also be multiple, so that the antenna unit can obtain a wider bandwidth, which can increase the coverage of the antenna unit Frequency band.
- the M feed arms are arranged around the first insulator in the first order, the distance between each of the M feed arms can be made larger, so that the M feed arms can be reduced The interference between the arms can improve the isolation of the port of the antenna unit, and further improve the performance of the antenna unit.
- 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 feed arms may all be “T”-shaped feed arms 202 as shown in FIG. 2.
- the coupling amount when the feeding arm of different forms (such as shape, material, structure, etc.) is coupled with the first ground body and the first isolator may be different, and the impedance requirements of the feeding arm of different forms It may also be different, that is, different forms of feed arms may have different effects on the working performance of the antenna unit, so you can select a suitable feed arm according to the actual use requirements of the antenna unit, so that the antenna unit can work in a suitable frequency range Inside.
- the M feed arms may follow the first sequence described above, along the inner side wall of the first isolator, in the order from the first end of the feed arm to the second end of the feed arm Set in the first insulator.
- the first isolator may be arranged around the aforementioned M feed arms.
- 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, namely the first feeding arm 2020, the second feeding arm 2022, the third feeding arm 2021, and the fourth feeding arm. Electric arm 2023.
- the four feeding arms can follow from the first end of the first feeding arm 2020 to the second end of the first feeding arm 2020, to the first end of the second feeding arm 2022, and then from the second feeding arm.
- the order of the first end of 2020 is arranged in the metal groove 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. That is, the first power feed arm, the second power feed arm, the third power feed arm, and the fourth power feed arm are circumferentially arranged in the first insulator.
- the first order of the M feeding arms can be increased by arranging the M feeding arms in the above-mentioned first order.
- the distance between one end that is, the distance between the first end of one feeding arm and the first end of the other feeding arms is relatively large), so that the interference between different feeding arms can be reduced, which can improve The isolation of the port of the antenna unit (that is, the feed port of the antenna unit).
- the feeding arms are arranged along the inner side wall of the first insulator, the feeding arms can be distributed as discretely as possible in the first insulator, thereby further reducing the mutual interference between the feeding arms, and further improving The isolation degree of the port of the antenna unit.
- the cross section of the first 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 may be sequentially arranged in the first insulator along the inner side wall of the first insulator.
- both the first feeding arm and the third feeding arm may be parallel to the first side wall of the first isolator, and both the second feeding arm and the fourth feeding arm may be parallel to the second inner side wall of the first isolating body. Parallel, the first inner side wall is perpendicular to the second inner side wall.
- the target metal cavity formed by the first isolator and the first grounding body may be a rectangular metal cavity.
- the third feeding arm and the fourth feeding arm may be sequentially arranged in the first insulator 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 first isolator in any other possible manner.
- the walls are arranged in the first insulator in sequence, for example, the first feeding arm and the third feeding arm may both be parallel to the second inner side wall of the first isolating body, and the second feeding arm and the fourth feeding arm may both be connected to the first insulator.
- the first inner sidewalls of a spacer are parallel. Specifically, it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
- 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 first feeding arm 2020, the second feeding arm 2022, the third feeding arm 2021, and the fourth feeding arm 2023 are all arranged in the first insulator 206, and the first feeding arm 2020 and the third feeding arm 2021 Both may be parallel to the inner side wall S1 of the first isolator (that is, the first inner side wall), and the second feeding arm 2022 and the fourth feeding arm 2023 may both be parallel to the inner side wall S2 of the first isolator (that is, the second inner side wall).
- the inner wall) is parallel. It can be seen from FIG. 4 that the inner side wall S1 of the first isolator is perpendicular to the inner side wall S2 of the first 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 first feeding arm, the second feeding arm, the third feeding arm, and the fourth feeding arm are arranged in the first insulator in order along the inner side wall of the first insulator.
- the feeding arm is arranged in the manner of, so that the distance between the first feeding arm 2020 and the third feeding arm 2021 is relatively large, and the distance between the second feeding arm 2022 and the fourth feeding arm 2023 is relatively large.
- the above-mentioned first feeding arm can be ,
- the second feeding arm, the third feeding arm and the fourth feeding arm are arranged in the first insulator in sequence along the inner side wall of the first isolator to increase the above-mentioned two feeding arm groups (the first feeding arm).
- the distance between the feeder arms in the arm group and the second feeder arm group so that during the working process of the antenna unit, the mutual influence between these feeder arm groups can be reduced, and the port performance of the antenna unit can be improved. Isolation.
- 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 2020 and the third feeding arm 2021 may be a feeding arm with +45° polarization (that is, the above-mentioned first polarization).
- the second feed arm group composed of the second feed arm 2022 and the fourth feed arm 2022 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 first grounding body and the first isolating body may be different, for example, the foregoing
- the induced currents generated by the coupling between the M feed arms and the first grounding body and the first isolator may be different, so the above M feeds 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 arm and the first ground body.
- the M feeding arms can be arranged on the same plane so that the distances between the different feeding arms and the first grounding body are equal, which can facilitate the control of the embodiment of the present invention. Provide the working parameters of the antenna unit.
- the above M power feeding portions may penetrate the first insulator.
- the first end of the power feeder can be electrically connected to the first end of the feeder arm, and the second end of the power feeder can be connected to a signal source in the electronic device (for example, the 5G signal in the electronic device). Source) electrical connection.
- a signal source in the electronic device for example, the 5G signal in the electronic device.
- Source electrical connection
- 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 first grounding body and the first isolator (ie, the target metal cavity mentioned above) through the feeding arm.
- the target metal cavity can be caused to generate an induced current, so that the target metal cavity can radiate electromagnetic waves of a certain frequency.
- 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 first 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 first isolator
- the other two of the four power feeders may be located on the other diagonal of the cross section of the first 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 first 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 first isolator.
- the cross section of the first 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, and the second feed arm
- the feed arm group composed of the fourth feed arm is a -45° polarized feed arm group, and the feed part electrically connected to the first feed arm and the third feed arm is arranged on the first isolator
- the feed arms electrically connected to the second feed arm and the fourth feed arm are distributed on the other diagonal line of the cross section of the first 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 better the isolation of the antenna unit (the smaller the isolation, the better), the better the polarization isolation of the antenna unit, which can further Optimize the polarization performance of the antenna unit.
- 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.
- the above-mentioned first isolator may be used to isolate the electromagnetic waves radiated by the first grounding body in the direction where the first isolator is located, so that the antenna unit provided in the embodiment of the present invention can have directivity.
- the above-mentioned first insulator may be any component having an isolation function, such as a metal sheet or a metal post, which is arranged on the edge of the first insulator.
- an isolation function such as a metal sheet or a metal post, which is arranged on the edge of the first insulator.
- it can be determined according to actual use requirements, and the embodiment of the present invention does not limit it.
- the above-mentioned first spacer may be N metal pillars, and N is an integer greater than 1.
- the diameter of the aforementioned metal pillar may be determined according to the size of the first insulator. Specifically, the diameter of the metal pillar may be determined according to the cross-sectional area of the first insulator.
- the material of the aforementioned 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 metal pillar may be a metal pillar formed by pouring a metal material in the first through hole.
- the first through hole may be a through hole provided in the first insulator (specifically, it may be an edge of the first insulator).
- N first through holes may be provided in the first insulator, and a metal pillar is respectively provided in the N first through holes.
- the N first through holes may be evenly distributed on the edge of the first insulator, so that the N metal posts may be evenly distributed on the edge of the first insulator.
- the distance between any two adjacent metal pillars among the aforementioned N metal pillars may be equal.
- the punching process is relatively simple, it is possible to simplify the processing process of the first insulator by arranging through holes in the first insulator and arranging metal pillars in the through holes to simplify Difficulty in processing small antenna units.
- the denser the metal pillars arranged in the antenna unit the better the radiation effect of the antenna unit.
- the distance between two adjacent metal pillars among the foregoing N 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 metal pillars and the first grounding body (ie, the target metal cavity) with the M feeding arms.
- the process of arranging the metal pillars in the first insulator is relatively simple and easy to implement, arranging the first isolator as the aforementioned N metal pillars can simplify the manufacture of the antenna unit provided by the embodiment of the present invention. Craft.
- metal pillars may also be implemented through any other possible processes, which may be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention.
- the antenna unit may further include a second ground body.
- each of the aforementioned N metal pillars the metal pillar passing through the second ground body is electrically connected to the first ground body.
- each of the aforementioned N metal pillars may be electrically connected to the second ground body.
- the metal pillar (ie, the first isolator) 203 passes through the second ground body 205 and is electrically connected to the first ground body 204.
- the second grounding body may be provided in the first insulator, or may be provided on the surface 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 form of the foregoing second grounding body may be any possible form such as a metal frame or a metal ring, which may be specifically determined according to actual use requirements, and the embodiment of the present invention does not limit it.
- the second grounding body can be arranged in the first insulator, so that the antenna unit provided by the embodiment of the present invention The grounding is more reliable, so that the antenna unit can send and receive high-frequency signals more stably.
- the second ground body can be a whole, when the above N metal posts pass through the second ground body, these metal posts can be stably fixed, so that the structure of the antenna unit provided by the embodiment of the present invention is more stable. compact.
- the antenna unit 20 may also include the first insulator
- the second insulator 207 is stacked by the insulator 206, and the M feed arms can be embedded in the second insulator 207.
- the cross-sectional shape (specifically, the cross-sectional shape) of the second insulator may be the same as the cross-sectional shape of the first insulator. Any possible shape such as rectangle or circle.
- the shape of the cross-section of the second insulator 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 material of the above-mentioned second 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 second insulator may be the same as the material of the first insulator.
- the material of the above-mentioned second insulator may be an insulating material with relatively small relative permittivity and loss tangent.
- the relative dielectric constant of the material of the second 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 second insulator, the influence of the second insulator on the radiation effect of the antenna unit The smaller. That is to say, the smaller the loss tangent value of the material of the second insulator, the smaller the influence of the second insulator on the working performance of the antenna unit, and the better the radiation effect of the antenna unit.
- the second insulator and the first insulator are stacked, all the radiators (M feeding arms, the first grounding body, and the first isolator) of the antenna unit provided in the embodiment of the present invention can be It is located inside the insulator (the first insulator or the second insulator), so the interference of the external environment to the antenna unit can be reduced, so that the working performance of the antenna unit can be relatively stable.
- the distance between the antenna elements can be reduced, so that the scanning angle of the antenna array can be increased.
- 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 an electronic 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 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
- an antenna unit may be located in a first groove in the second frame 32, the M feed arms 202 and the first isolator 203 in the antenna unit may be arranged in the first insulator 206, and The first isolator 203 is arranged around the M feeding arms 202.
- 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, M feeding arms, and a first isolator arranged in the first insulator, and a first ground body arranged at the bottom of the first insulator;
- An isolator is arranged around the M feeding arms and is electrically connected to the first grounding body.
- Each feeding part of the M feeding parts is electrically connected to the first end of one feeding arm and is electrically connected to the first end of the feeding arm.
- a grounding body is insulated, the M feeding arms are arranged in the first insulator in a first order, and each feeding arm of the M feeding arms is coupled with the first isolator and the first grounding body, M is an integer greater than 1.
- the first isolator is electrically connected to the first ground
- the first isolator and the first ground can form a metal cavity
- the feed arm can be isolated from the first isolator and the first ground Body coupling, that is, the feeding arm can be coupled with the metal cavity composed of the first isolator and the first grounding body.
- the feeding arm can be coupled with the metal cavity, so that the metal cavity can generate an induced current, and thereby the feeding arm and the metal cavity can radiate a certain amount.
- the frequency of the electromagnetic wave generated by the current on the feed arm through the metal cavity can also be multiple, so that the antenna unit can obtain a wider bandwidth, which can increase the coverage of the antenna unit Frequency band.
- the M feed arms are arranged around the first insulator in the first order, the distance between each of the M feed arms can be made larger, so that the M feed arms can be reduced The interference between the arms can improve the isolation of the port of the antenna unit, and further improve the performance of the antenna unit.
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Abstract
Description
Claims (12)
- 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、M个馈电臂和第一隔离体,以及设置在所述第一绝缘体底部的第一接地体;其中,所述第一隔离体围绕所述M个馈电臂设置、且与所述第一接地体电连接,所述M个馈电部中的每个馈电部分别与一个馈电臂的第一端电连接、且与所述第一接地体绝缘,所述M个馈电臂按照第一顺序环绕设置在所述第一绝缘体中,且所述M个馈电臂中的每个馈电臂均与所述第一隔离体和所述第一接地体耦合,M为大于1的整数。
- 根据权利要求1所述的天线单元,其中,所述M个馈电臂按照所述第一顺序,沿所述第一隔离体的内侧壁,以从馈电臂的第一端到馈电臂的第二端的次序设置在所述第一绝缘体中。
- 根据权利要求1所述的天线单元,其中,所述第一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一隔离体的内侧壁顺序设置在所述第一绝缘体中;其中,所述第一馈电臂和第三馈电臂均与所述第一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一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。
- 根据权利要求3所述的天线单元,其中,所述M个馈电臂位于同一平面上。
- 根据权利要求1至4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。
- 根据权利要求1至4中任一项所述的天线单元,其中,所述第一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一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一隔离体的横截面的另一条对角线上。
- 根据权利要求6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。
- 根据权利要求1所述的天线单元,其中,所述第一隔离体为N个金属柱,N为大于1的整数。
- 根据权利要求8所述的天线单元,其中,所述天线单元还包括第二接地体;其中,对于所述N个金属柱中的每个金属柱,穿过所述第二接地体的金属柱与所述第一接地体电连接。
- 根据权利要求1至4中任一项所述的天线单元,其中,所述M个馈电臂位于所述第一绝缘体表面;所述天线单元还包括与所述第一绝缘体层叠设置的第二绝缘体,所述M个馈电臂嵌入所述第二绝缘体中。
- 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10中任一项所述的天线单元。
- 根据权利要求11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。
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CN116368691A (zh) * | 2021-10-27 | 2023-06-30 | 京东方科技集团股份有限公司 | 阵列天线及其制备方法、电子装置 |
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