WO2021233353A1 - 天线装置和无线电通信设备 - Google Patents

天线装置和无线电通信设备 Download PDF

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Publication number
WO2021233353A1
WO2021233353A1 PCT/CN2021/094709 CN2021094709W WO2021233353A1 WO 2021233353 A1 WO2021233353 A1 WO 2021233353A1 CN 2021094709 W CN2021094709 W CN 2021094709W WO 2021233353 A1 WO2021233353 A1 WO 2021233353A1
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WO
WIPO (PCT)
Prior art keywords
radiators
row
radiator
antenna device
circuit board
Prior art date
Application number
PCT/CN2021/094709
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English (en)
French (fr)
Inventor
丁峰
奈春英
袁博
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020227039338A priority Critical patent/KR20230002628A/ko
Priority to EP21808033.1A priority patent/EP4123829A4/en
Priority to JP2022571326A priority patent/JP7500777B2/ja
Publication of WO2021233353A1 publication Critical patent/WO2021233353A1/zh
Priority to US18/052,574 priority patent/US20230092632A1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/24Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/42Housings not intimately mechanically associated with radiating elements, e.g. radome
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/523Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364Creating multiple current paths
    • H01Q5/371Branching current paths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/06Details
    • H01Q9/065Microstrip dipole antennas

Definitions

  • This application relates to the field of wireless communication, and in particular to an antenna device and radio communication equipment.
  • An antenna device is a device that radiates and receives electromagnetic waves, and is used to realize the conversion between electric current and electromagnetic waves. It mainly includes a radiator for radiating and receiving electromagnetic waves and a feeding part for feeding power to the radiator.
  • the present application provides an antenna device and radio communication equipment, which can simplify the processing and manufacturing process of the antenna.
  • an antenna device in one aspect, includes a circuit board and a plurality of radiators, wherein the plurality of radiators are all located on the circuit board, and the plurality of radiators form at least one radiator Arrays, each of the radiator arrays includes a first row of radiators and a second row of radiators;
  • the polarization direction of the first row of radiators is perpendicular to the polarization direction of the second row of radiators, and the radiators in the first row of radiators are perpendicular to the first row of radiators.
  • the radiators in the two rows of radiators do not overlap, and the end of the first radiator of the first row of radiators points to the target position range of the adjacent second radiator in the second row of radiators, so that the phase The isolation between the adjacent first radiator and the second radiator meets the isolation index and is the closest to each other.
  • the radiators in the first column and the radiators in the second column do not overlap, and the radiators in the first column and the radiators in the second column are in physical space.
  • the positions are mutually cracked and arranged in a staggered arrangement to increase the isolation, which can reduce or even avoid the mutual interference of the radiators in the first row of radiators and the radiators in the second row of radiators.
  • the isolation between two adjacent radiators one located in the first row of radiators and the other located in the second row of radiators, reaches the minimum requirement of the isolation index
  • the first row of radiators and the second row of radiators are as close as possible to save the space of the antenna device and make the antenna device compact.
  • the end of the first radiator of the first row of radiators points to the target position range of the adjacent second radiator in the second row of radiators.
  • the first radiator is any radiator in the first row of radiators
  • the second radiator is one radiator in the second row of radiators.
  • the adjacent first radiator and second radiator can be the radiator located in the first row of radiators and the radiator located in the second row of radiators, or they can be located in the first row of radiators.
  • the isolation between the radiators and the radiators reaches the isolation index
  • the distance between the first row of radiators and the second row of radiators has also reached the minimum.
  • meeting the isolation index may be meeting the minimum requirement of the isolation index, where the minimum requirement meeting the isolation index may be exactly equal to the minimum isolation, or slightly greater than the minimum isolation.
  • the minimum requirement of the isolation index is 18db (decibel, decibel)
  • the isolation between the radiator and the radiator can be exactly 18db, or it can be slightly greater than 18db.
  • the target position range of the radiator may be the position range formed by the central position of the radiator and the area adjacent to the central position of the radiator.
  • the line on which the radiator is located is the coordinate axis
  • the middle position of the radiator is the center
  • the position interval formed by the designated distance to the left and the designated distance to the right can be used.
  • the end of each radiator of the first row of radiators can point to the middle position of the adjacent radiator in the second row of radiators, or it can point to the middle position of the adjacent radiator in the second row of radiators. At a certain location.
  • the specific pointing position of the end of each radiator of the first row of radiators is not absolutely limited, and it can meet the minimum requirement of isolation index and be the most compact.
  • the end of one radiator can be pointed to within the target position range of another radiator, or it can be pointed by the end of another radiator.
  • the radiator in the first column includes three radiators 2a, 2b, and 2c
  • the radiator in the second column includes three radiators 2d, 2e, and 2f.
  • each radiator in the first column is adjacent to one or two radiators in the second column, and each radiator in the second column radiates from the first column.
  • One or two radiators in the body are adjacent to each other.
  • the radiators 2a in the first row of radiators that are adjacent to the two radiators 2f and 2e of the second row of radiators have their ends directed toward the radiation in the second row of radiators.
  • the target position range of the body 2f is also pointed by the end of the radiator 2e in the second row of radiators.
  • the radiators 2e adjacent to the two radiators 2a and 2b of the first row of radiators have their ends pointing to the target position of the adjacent radiators 2a in the first row of radiators
  • the target position range is also pointed by the end of another adjacent radiator 2b in the first row of radiators.
  • all the radiators of the array antenna device are on one circuit board, that is, a common circuit board.
  • the end of each radiator in the first column of radiators in the radiator array points to the second Within the target position range of a neighboring radiator in the column of radiators, the first column of radiators and the second column of radiators are as close as possible to achieve the compactness of the antenna device on the basis of meeting the requirements of the isolation index.
  • the target position range of the second radiator is a position range formed by a central position of the second radiator and an area position adjacent to the central position of the second radiator.
  • each radiator array the physical positions of the first row of radiators and the second row of radiators invade each other.
  • the ends of the radiators of the first row of radiators all extend into the array of the second row of radiators, and the ends of the radiators of the second row of radiators all extend into the first row of radiators.
  • the ends of the radiators 2a, 2b, and 2c in the first row of radiators all extend into the array of the second row of radiators, and are located in the second row of radiators.
  • the ends of the radiator 2d, the radiator 2e, and the radiator 2f all extend into the array of the first row of radiators.
  • the two rows of radiators of each radiator array in the antenna device penetrate each other and invade each other, which can improve the space utilization rate of the antenna device, which is beneficial to the compactness of the antenna device.
  • the antenna device further includes a feeding part, the feeding part is located on the circuit board, and the feeding part is electrically connected to the plurality of radiators, respectively.
  • the deployment of the feeding part on the circuit board can simplify the connection between the feeding part and the radiator, and save a lot of welding or mounting processes.
  • the feeding part and the radiator share a circuit board, that is, the feeding part and the radiator are arranged on the same circuit board by printing, which can greatly simplify the processing and manufacturing of the antenna device, improve the production and processing efficiency, and save costs, which is beneficial to Large-scale production of antenna devices.
  • the antenna device further includes a reflector, the circuit board is mounted on the reflector, and the distance between the reflector and the circuit board is within a set value range.
  • the reflector can make the antenna device a directional antenna, which can emit electromagnetic waves in a specified direction, and can receive electromagnetic waves sent in a specified direction, so as to realize the directionalization of the antenna device.
  • the position of the reflecting plate corresponding to the first boundary of the first row of radiators is bent toward the circuit board to form a first inclined surface, and the first boundary of the first row of radiators is Far from the column boundary of the second column of radiators, the first inclined surface is used to reflect electromagnetic waves radiated by the second column of radiators of the radiator array in which the first column of radiators are located;
  • the position of the reflecting plate corresponding to the first boundary of the second row of radiators is bent toward the circuit board to form a second inclined surface, and the first boundary of the second row of radiators is Far away from the column boundary of the first column of radiators, the second inclined surface is used to reflect electromagnetic waves radiated by the first column of radiators of the radiator array where the second column of radiators are located.
  • the first oblique surface reflects the electromagnetic waves emitted by the radiators in the second row of radiators
  • the second oblique surface reflects the electromagnetic waves emitted by the radiators in the first row of radiators, which can be used to optimize
  • the pattern of the antenna device enhances the symmetry of the pattern.
  • the position of the reflector corresponding to the boundary between the first row of radiators and the second row of radiators in the radiator array is convex toward the circuit board to form a third An inclined surface and a fourth inclined surface, the third inclined surface is used to reflect the electromagnetic wave of the second row of radiators, and the fourth inclined surface is used to reflect the electromagnetic wave of the first row of radiators.
  • the antenna device optimizes the directional pattern of the antenna device and enhances the symmetry of the directional pattern through the reflection of electromagnetic waves from the first inclined surface, second inclined surface, third inclined surface, and fourth inclined surface of the reflector to the radiator This makes the coverage area of the antenna device uniform and improves the communication quality.
  • the polarization direction of each radiator in the first row of radiators is positive 45 degrees
  • the polarization direction of each radiator in the second row of radiators is negative 45 degrees.
  • the polarization direction of the first row of radiators may be positive 45 degrees, and the polarization direction of the second row of radiators may be negative 45 degrees.
  • the polarization direction of the first row of radiators may be negative 45 degrees, and the polarization direction of the second row of radiators may be positive 45 degrees.
  • the antenna device has dual polarization characteristics.
  • the radiator includes a high-frequency radiation unit and a low-frequency radiation unit, wherein the high-frequency radiation unit and the low-frequency radiation unit are located on the circuit board in parallel.
  • the working frequency band of the high-frequency radiation unit can be 5GHz, and the working frequency band of the low-frequency radiation unit can be 2.4GHz.
  • the antenna device has two working frequency bands of 2.4GHz and 5GHz, making the antenna device a dual-frequency dual-polarized antenna. Expand the function of the antenna device.
  • each radiator of the pair of radiators includes two symmetrical radiating elements, and the first radiating element of the two radiating elements is located on the first surface of the circuit board.
  • the second radiating oscillator is located on the second surface of the circuit board, and the first surface is opposite to the second surface.
  • the antenna device further includes a protective cover, and the circuit board and the plurality of radiators are all located in the protective cover.
  • the circuit board and the multiple radiators on the circuit board are all covered in a protective cover to protect the circuit board and the radiators.
  • a radio communication device comprising a radio device and the above-mentioned antenna device, wherein the feeding part of the antenna device is electrically connected to the radio device.
  • the antenna device provided in this application includes a circuit board and a plurality of radiators on the circuit board.
  • the plurality of radiators can form at least one radiator array, and each radiator array can include a first row of radiators and a second row of radiators. , Wherein the end of each radiator in the first row of radiators points within the target position range of a neighboring radiator in the second row of radiators, so as to meet the isolation index requirements and the compactness of the antenna device.
  • the first row of radiators and the second row of radiators whose polarization directions are perpendicular to each other are printed on the same circuit board, which can simplify the manufacturing process and reduce the manufacturing cost.
  • the first row of radiators and the second row of radiators whose chemical directions are perpendicular to each other split and intrude into each other.
  • the antenna device can be made more compact.
  • Fig. 1 is a schematic structural diagram of an antenna device provided by the present application.
  • Fig. 2 is a schematic structural diagram of an antenna device provided by the present application.
  • Fig. 3 is a schematic structural diagram of an antenna device provided by the present application.
  • FIG. 4 is a schematic structural diagram of an antenna device provided by the present application.
  • FIG. 5 is a schematic structural diagram of an antenna device provided by the present application.
  • FIG. 6 is a schematic structural diagram of an antenna device provided by the present application.
  • FIG. 7 is a schematic structural diagram of an antenna device provided by the present application.
  • Radiation vibrator of high-frequency radiation unit 221. Radiation vibrator of low-frequency radiation unit.
  • the present application relates to an antenna device.
  • the antenna device may be an antenna device of a wireless access point, an antenna device of a base station, or an antenna device of a router.
  • the antenna device can be used to radiate electromagnetic waves, can also be used to receive electromagnetic waves, and can also radiate electromagnetic waves and receive electromagnetic waves.
  • the antenna device may include a circuit board 1 and a plurality of radiators 2 (radiators 2a-2f as shown in Fig. 1), wherein the plurality of radiators 2 are all located on the circuit board 1.
  • Each radiator 2 forms at least one radiator array 20, and each radiator array 20 includes a first row of radiators 201 and a second row of radiators 202; in each radiator array 20, the poles of the first row of radiators 201
  • the polarization direction is perpendicular to the polarization direction of the second row of radiators 202, and the radiators 2a-2c in the first row of radiators 201 and the radiators 2d-2f in the second row of radiators 202 do not overlap.
  • the ends of the first radiator of the radiator 201 (for example, any one of the radiator 2a, the radiator 2b, and the radiator 2c in FIG. 1) all point to the adjacent second radiator in the second row of radiators 202 In the target position range of, so that the isolation between the adjacent first radiator and the second radiator meets the isolation index and is the closest to each other. Where the two radiators are the closest to each other, it can also be considered that the first row of radiators 201 and the second row of radiators 202 are the closest to each other.
  • a plurality of radiators 2 can form a radiator array 20, and each radiator array 20 can include two rows of radiators, which can be denoted as the first row of radiators 201 and the second row of radiators. ⁇ radiator 202.
  • each radiator array 20 can include two rows of radiators, which can be denoted as the first row of radiators 201 and the second row of radiators. ⁇ radiator 202.
  • six radiators 2a-2f form a radiator array 20.
  • the first column of radiators 201 of the radiator array 20 includes three radiators 2, which can be marked as radiators for easy distinction.
  • the radiator 202 in the second column includes three radiators 2, which can be denoted as the radiator 2d, the radiator 2e, and the radiator 2f to facilitate the distinction.
  • FIG. 1 a plurality of radiators 2 can form a radiator array 20
  • each radiator array 20 can include two rows of radiators, which can be denoted as the first row of radiators
  • radiators can form two radiator arrays 20, which can be denoted as radiator array 20a and radiator array 20b to facilitate the distinction.
  • the first column radiator 201a of radiator array 20a The radiator 2a, the radiator 2b, and the radiator 2c are included in the radiator 202a.
  • the radiator 2d in the second column 202a includes the radiator 2d, the radiator 2e, and the radiator 2f.
  • the radiator 201b in the first column of the radiator array 20b includes the radiator 2g.
  • the second row of radiators 202b includes radiator 2j, radiator 2k, and radiator 2m.
  • this embodiment does not limit the number of radiator arrays 20 included in the antenna device, and technicians can flexibly choose according to the environment in which the antenna device is located.
  • the first row of radiators 201 and the second row of radiators 202 are two rows of radiators in the same radiator array 20.
  • the polarization direction of the first row of radiators 201 and the polarization direction of the second row of radiators 202 are perpendicular to each other.
  • the polarization direction of the first row of radiators 201 is positive 45 degrees
  • the polarization direction of the second row of radiators 202 is negative 45 degrees
  • the polarization direction of the first row of radiators 201 is negative 45 degrees
  • the polarization direction of the second row of radiators 202 is positive 45 degrees.
  • radiators 2 in the first row of radiators 201 in order to prevent the radiator 2 in the first row of radiators 201 from interfering with the radiator 2 in the second row of radiators 202, correspondingly, the radiator 2 in the first row of radiators 201 and the second row of radiators 201
  • the radiators 2 in the row of radiators 202 are not superimposed, and the radiators 2 in the first row of radiators 201 and the radiators 2 in the second row of radiators 202 are mutually cracked in physical space, and are arranged in a staggered arrangement to increase Great isolation.
  • the isolation between two adjacent radiators 2 in the first column 201 and the other in the second column 202 can reach the isolation index.
  • the first row of radiators 201 and the second row of radiators 202 should be as close as possible to save the space of the antenna device.
  • the end of the first radiator of the first row of radiators 201 points to the target position range of the adjacent second radiator in the second row of radiators 202.
  • the first radiator is any radiator in the first row of radiators 201
  • the second radiator is one radiator in the second row of radiators 202.
  • the adjacent first radiator and second radiator can be the radiator 2a in the first row of radiators 201 and the radiator 2f in the second row of radiators 202, or Yes, the radiator 2a in the first row of radiators 201 and the radiator 2e in the second row of radiators 202 are located.
  • the distance between the radiator 2a and the radiator 2f is When the isolation reaches the minimum requirement of the isolation index, the distance between the first row of radiators 201 and the second row of radiators 202 also reaches the minimum.
  • meeting the isolation index may be meeting the minimum requirement of the isolation index, where the minimum requirement meeting the isolation index may be exactly equal to the minimum isolation, or slightly greater than the minimum isolation.
  • the minimum requirement of the isolation index is 18 decibels (decibel, db)
  • the isolation between the radiator 2a and the radiator 2f can be exactly 18db, or it can be slightly greater than 18db.
  • the target position range of the radiator may be the position range formed by the central position of the radiator and the area adjacent to the central position of the radiator.
  • the line on which the radiator is located is the coordinate axis
  • the middle position of the radiator is the center
  • the position interval formed by the designated distance to the left and the designated distance to the right can be used.
  • the end of each radiator in the first row of radiators 201 can point to the middle position of the adjacent radiator in the second row of radiators 202, or it can point to the proximity of the adjacent radiator in the second row of radiators 202. At one of its central positions.
  • the specific pointing position of the end of each radiator of the first row of radiators 201 is not absolutely limited, and it can meet the minimum requirement of isolation index and be the most compact.
  • the end of one radiator can be pointed to within the target position range of another radiator, or it can be pointed by the end of another radiator.
  • radiators 2a, 2b, and 2c in the case where the first column of radiators 201 includes radiators 2a, 2b, and 2c, and the second column of radiators 202 includes radiators 2d, 2e, and 2f ,
  • Each radiator in the first row of radiators 201 is adjacent to one or two radiators in the second row of radiators 202, and each radiator in the second row of radiators 202 is adjacent to the first row of radiators 201
  • One or two of the radiators are adjacent to each other.
  • the radiators 2a in the first row of radiators 201 that are adjacent to the two radiators 2f and 2e of the second row of radiators 202 have their ends directed toward the second row of radiators 202.
  • the end of the radiator 2e in the second row of radiators 202 is also pointed at the target position range.
  • the radiators 2e in the second row of radiators 202 that are adjacent to the two radiators 2a and 2b of the first row of radiators 201 have their ends pointing toward the adjacent radiators 2a in the first row of radiators 201
  • the target position range is also pointed by the end of another adjacent radiator 2b in the first row of radiators 201.
  • all the radiators 2 of the array antenna device are on a circuit board 1, that is, a common circuit board, the end of each radiator in the first column of radiators 201 in the radiator array Point to the target position range of the adjacent radiator in the second row of radiators 202, so that on the basis of meeting the requirements of isolation index, the first row of radiators 201 and the second row of radiators 202 are as close as possible to realize the antenna The compactness of the device.
  • the dual-polarized antenna device with the above arrangement compared with the dual-polarization achieved by superimposing radiators in the related art, all the radiators are printed on the circuit board, the processing and manufacturing process is simple, the production efficiency is high, and the manufacturing cost is low.
  • the scale of the antenna device is very large area of radiators.
  • the antenna device can meet the boundary conditions of the isolation index, and the first row of radiators 201 and the second row of radiators 202 can be as close as possible, so that In each radiator array 20, the physical positions of the first row of radiators 201 and the second row of radiators 202 invade each other.
  • the ends of the radiators 2 of the first row of radiators 201 all extend into the array of the second row of radiators 202, and the ends of the radiators 2 of the second row of radiators 202 all extend into the first row.
  • Column radiator 201 in an array For example, referring again to FIG. 3, the ends of the radiators 2a, 2b, and 2c in the first row of radiators 201 all extend into the array of the second row of radiators 202, and are located in the second row.
  • the ends of the radiator 2d, the radiator 2e, and the radiator 2f in the radiator 202 all extend into the array of the radiator 201 in the first row.
  • the two rows of radiators of each radiator array 20 in the antenna device penetrate each other and invade each other, which can improve the space utilization rate of the antenna device, which is beneficial to the compactness of the antenna device.
  • the antenna device further includes a feeding part 3 for feeding power to the radiator 2.
  • the feeding part 3 of the antenna device can also be printed On the circuit board 1, as shown in FIG. 4, the power feeding member 3 is located on the circuit board 1, and the power feeding member 3 is electrically connected to a plurality of radiators 2 respectively.
  • the feeding part 3 is arranged on the circuit board 1 to simplify the connection between the feeding part 3 and the radiator 2 and save a lot of welding or mounting processes.
  • the feeding part 3 and the radiator 2 share the same circuit board 1, that is, the feeding part 3 and the radiator 2 are laid on the same circuit board 1 by printing, which can greatly simplify the processing and manufacturing of the antenna device and improve the efficiency of production and processing. , Which saves costs, and is conducive to the large-scale production of antenna devices.
  • the antenna device further includes a reflector 4, wherein the circuit board 1 can be fixedly installed on the reflector 4, and the reflector 4 and the circuit board 1 can be mutually Parallel, the distance between the two is within the set value range.
  • the set value range can be determined according to the index of each parameter in the pattern of the antenna device, for example, it can be determined according to the symmetry of the pattern, the characteristics of the main lobe and the characteristics of the side lobe in the pattern, and so on.
  • the size of the reflector 4 can be adapted to the size occupied by the multiple radiators 2 on the circuit board 1 on the circuit board 1.
  • the area of the reflector 4 and all the radiators 2 of the antenna device are in the circuit
  • the total area occupied on the board 1 is adapted.
  • the reflector 4 may have an inclined surface to reflect the electromagnetic wave of the radiator 2.
  • the position of the reflector 4 corresponding to the first boundary of the first row of radiators 201 is bent toward the circuit board 1 to form a first inclined surface 41, and the first row of radiators 201
  • the first boundary of is the column boundary far away from the second row of radiators 202
  • the first inclined surface 41 is used to reflect the electromagnetic waves radiated by the second row of radiators 202 of the radiator array 20 where the first row of radiators 201 are located;
  • the position corresponding to the first boundary of the second row of radiators 202 is bent toward the circuit board 1 to form a second inclined surface 42.
  • the first boundary of the second row of radiators 202 is far away from the first row of radiators.
  • the second inclined surface 42 is used to reflect the electromagnetic waves radiated by the first column radiator 201 of the radiator array 20 where the second column radiator 202 is located.
  • the column boundary of the first row of radiators 201 is the boundary formed by the end of the radiator 2 in the first row of radiators 201, and the column boundary of the second row of radiators 202 is defined by the second row of radiators 202.
  • the first boundary of the first row of radiators 201 is the boundary formed by the end of the first row of radiators 201 far away from the second row of radiators 202, and the first row of radiators 201
  • the second boundary is the boundary formed by the end of the radiator 2 in the first row of radiators 201 adjacent to the second row of radiators 202.
  • the first boundary of the second row of radiators 202 is the boundary formed by the end of the radiator 2 in the second row of radiators 202 far away from the first row of radiators 201
  • the second boundary of the second row of radiators 202 is The radiator 2 in the second row of radiators 202 forms a boundary adjacent to the end of the first row of radiators 201.
  • the position term above and below can be introduced.
  • the position where the circuit board 1 is located can be regarded as the upper side, and the position where the reflector plate 4 is located as the lower side.
  • the position of the reflector 4 corresponding to the first boundary of the first row of radiators 201 is bent toward the circuit board 1 to form the first inclined surface 41, that is, the reflector 4
  • the lower part of the first boundary of the first row of radiators 201 bends toward the circuit board 1 and rises to a specified height to form a first inclined surface 41.
  • the position of the reflector 4 corresponding to the first boundary of the second row of radiators 202 is bent toward the circuit board 1 to form a second inclined surface 42, that is, the reflector 4 is located in the second row.
  • the lower part of the first boundary of the radiator 202 is bent toward the direction of the circuit board 1 and raised to a specified height to form a second inclined surface 42.
  • the first inclined surface 41 reflects the electromagnetic waves of the second row of radiators 202
  • the second inclined surface 42 reflects the electromagnetic waves of the first row of radiators 201.
  • the specified height depends on the inclination angle of the first inclined surface 41 and the second inclined surface 42 with respect to the main body portion of the reflector 4, and the angle of the first inclined surface 41 and the second inclined surface 42 with respect to the main body portion of the reflector 14
  • the tilt angle can be determined by the directional pattern of the antenna device.
  • the inclination angle of the first inclined surface 41 and the second inclined surface 42 with respect to the main body portion of the reflection plate 4 may be 45 degrees or 60 degrees.
  • the inclination angle of the first inclined surface 41 and the second inclined surface 42 relative to the main part of the reflector 4 is not limited, and the skilled person can flexibly adjust it according to the actual situation.
  • the position of the junction of the first row of radiators 201 and the second row of radiators 202 in the corresponding radiator array 20 of the reflector 4 faces the circuit board.
  • the direction of 1 is convex to form a third inclined surface 43 and a fourth inclined surface 44, the third inclined surface 43 reflects the electromagnetic wave of the second row of radiators 202, and the fourth inclined surface 44 reflects the electromagnetic wave of the first row of radiators 201.
  • the position at the junction of the first row of radiators 201 and the second row of radiators 202 that is, the position where the first row of radiators 201 and the second row of radiators 202 are close to each other, that is, the first row of radiators 201 and 202 are close to each other.
  • the position of the reflector 4 located directly below the junction of the first row of radiators 201 and the second row of radiators 202 protrudes toward the circuit board 1 by a specified distance to form the third inclined surface 43 and the second row of radiators.
  • the third inclined surface 43 faces the second row of radiators 202 to reflect the electromagnetic waves of the second row of radiators 202
  • the fourth inclined surface 44 faces the first row of radiators 201 to reflect The electromagnetic wave of the first row of radiators 201.
  • the first inclined surface 41 and the second inclined surface 42 can have a rough optimization effect on the pattern of the antenna device
  • the third inclined surface 43 and the fourth inclined surface 44 can have a fine effect on the pattern of the antenna device. Optimized effect.
  • the antenna device optimizes the direction of the antenna device by reflecting the electromagnetic waves of the radiator 2 by the first inclined surface 41, the second inclined surface 42, the third inclined surface 43 and the fourth inclined surface 44 of the reflector 4 As shown in the figure, the symmetry of the pattern is improved, so that the coverage area of the antenna device is uniform, and the communication quality is improved.
  • each radiator 2 of the plurality of radiators 2 may be composed of two symmetrical radiating oscillators, and the two radiating oscillators are located on the circuit board 1, for example, in two symmetrical radiating oscillators, One radiating vibrator is located on the first surface of the circuit board 1, and the other radiating vibrator is located on the second surface of the circuit board 1.
  • the first surface and the second surface of the circuit board 1 are opposite to each other, and are located on the first surface of the circuit board 1.
  • the radiating vibrator on one surface can be denoted as the first radiating vibrator, and the radiating vibrator on the second surface can be denoted as the second radiating vibrator.
  • each radiator 2 may include two symmetrical radiating elements. One of the two symmetrical radiating elements is located on the first side of the circuit board 1. The other surface is located on the second surface of the circuit board 1.
  • the antenna device may also be a dual-frequency antenna.
  • each radiator 2 may include a high-frequency radiation unit 21 and a low-frequency radiation unit 22, wherein the high-frequency radiation unit 21 It is located on the circuit board 1 in parallel with the low-frequency radiation unit 22.
  • FIG. 7 only the radiator 2a in the first row of radiators 201 and the radiator 2f in the second row of radiators 202 are illustrated. The specific structures of the other radiators are similar, so they will not be illustrated one by one.
  • the working frequency band of the high-frequency radiation unit 21 may be 5 GHz, and the working frequency band of the low-frequency radiation unit 22 may be 2.4 GHz.
  • the antenna device has two working frequency bands of 2.4 GHz and 5 GHz.
  • the high-frequency radiation unit 21 may also include two symmetrical radiation elements 211, and the low-frequency radiation unit 22 may also include a symmetrical radiation element 221.
  • the radiator 2a in the first column of radiators 201 it includes a high-frequency radiation unit 21 and a low-frequency radiation unit 22, and the high-frequency radiation unit 21 includes a radiation vibrator 211a and a radiation vibrator 211b, wherein, The radiation vibrator 211 a is located on the first surface of the circuit board 1, and the radiation vibrator 211 b is located on the second surface of the circuit board 1.
  • the low-frequency radiation unit 22 includes a radiation vibrator 221 a and a radiation vibrator 221 b, the radiation vibrator 221 a is located on the first surface of the circuit board 1, and the radiation vibrator 221 b is located on the second surface of the circuit board 1.
  • the radiator 2f in the second column of radiators 202 includes a high-frequency radiation unit 21 and a low-frequency radiation unit 22.
  • the high-frequency radiation unit 21 includes a radiation vibrator 211a and a radiation vibrator 211b, where the radiation vibrator 211a can be located on the line On the first surface of the board 1, the radiation vibrator 211 b may be located on the second surface of the circuit board 1.
  • the low-frequency radiation unit 22 includes a radiation vibrator 221 a and a radiation vibrator 221 b.
  • the radiation vibrator 221 a is located on the first surface of the circuit board 1
  • the radiation vibrator 221 b is located on the second surface of the circuit board 1.
  • the specific structures of other radiators in the first row of radiators 201 are similar to those of the radiator 2a, and the specific structures of other radiators in the second row of radiators 202 are similar to the radiator 2f.
  • the antenna device can be a dual-frequency dual-polarized antenna.
  • the radiators on the two working frequency bands are located on the same circuit board to realize the common circuit board and common aperture of the antenna device.
  • the common aperture is the height of the antenna device.
  • the high-frequency working frequency band and the low-frequency working frequency share a radiator array, so that the high-frequency radiating unit and the low-frequency radiating unit do not need to be combined to achieve a common aperture, which further simplifies the processing and manufacturing process.
  • the antenna device may further include a protective cover, and the circuit board 1 and the plurality of radiators 2 are all located in the protective cover.
  • the protective cover can be covered on the reflector 4, the reflector 4 can be used as the base of the antenna device, the protective cover can be covered on the reflector 4, and the protective cover can be used as the upper cover of the antenna device.
  • the multiple radiators 2 on the board 1 are all located in the sealed space formed by the reflecting plate 4 and the protective cover.
  • the antenna device may further include a base, the reflector 4 is mounted on the base, the circuit board 1 is mounted on the reflector 4, the multiple radiators 2 and the feeding parts 3 are printed on the circuit board 1, and the protective cover is covered on the base Above, the reflecting plate 4, the circuit board 1, and the plurality of radiators 2 and the feeding parts 3 on the circuit board 1 are all located in the sealed space formed by the base and the protective cover.
  • the antenna device includes a circuit board and multiple radiators on the circuit board.
  • the multiple radiators can form at least one radiator array, and each radiator array can include a first row of radiators and a second row.
  • a radiator wherein the end of each radiator in the first row of radiators points to a target position range of an adjacent radiator in the second row of radiators, so as to meet the isolation index requirements and the compactness of the antenna device .
  • the first row of radiators and the second row of radiators whose polarization directions are perpendicular to each other are printed on the same circuit board, which simplifies the processing and manufacturing process, reduces the manufacturing cost, and is extremely
  • the first row of radiators and the second row of radiators whose chemical directions are perpendicular to each other split and intrude into each other.
  • the antenna device can be made more compact.
  • the radiator and the feeding part of the antenna device are printed on the same circuit board, which can simplify the manufacturing process and save costs, which is beneficial to the large-scale production of the antenna device.
  • An embodiment of the present application also provides a radio communication device, which may include a signal machine and the above-mentioned antenna device, and the signal machine is electrically connected to the feeder part of the antenna device.
  • the signal machine can be a signal transmitter, a signal receiver, or a signal transceiver that can both transmit and receive signals.
  • the antenna device of the radio communication equipment may include a circuit board and a plurality of radiators on the circuit board.
  • the plurality of radiators may form at least one radiator array, and each radiator array may include a first row of radiators.
  • Radiators and the second row of radiators wherein the end of each radiator in the first row of radiators points within the target position range of an adjacent radiator in the second row of radiators, so as to meet the isolation index requirements, and The compactness of the antenna device.
  • the first row of radiators and the second row of radiators whose polarization directions are perpendicular to each other are printed on the same circuit board, and the common circuit board can simplify the manufacturing process and reduce the manufacturing cost.
  • the first row of radiators and the second row of radiators whose polarization directions are perpendicular to each other split and intrude into each other, which can make the antenna device more compact on the basis of meeting the isolation index.

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Abstract

公开了一种天线装置和无线电通信设备,属于无线通信领域。该天线装置包括线路板和多个辐射体,其中,多个辐射体均位于线路板上,多个辐射体形成至少一个辐射体阵列,每个辐射体阵列包括第一列辐射体和第二列辐射体;在每个辐射体阵列中,第一列辐射体的极化方向与第二列辐射体的极化方向相垂直,且第一列辐射体中的辐射体与第二列辐射体中的辐射体不叠加,第一列辐射体的每个辐射体的端部指向第二列辐射体中邻近的辐射体的目标位置范围处,以使位于不同列且相邻的两个辐射体之间的隔离度满足隔离度指标且相距最近。采用本申请,可以简化加工制造工艺,降低制造成本,在满足隔离度指标的基础上可以使天线装置更为紧凑。

Description

天线装置和无线电通信设备
本申请要求于2020年05月22日提交的申请号为202010440048.X、发明名称为“天线装置和无线电通信设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信领域,特别涉及一种天线装置和无线电通信设备。
背景技术
天线装置是一种辐射和接收电磁波的设备,用于实现电流和电磁波之间的转换,主要包括用于辐射和接收电磁波的辐射体和用于向辐射体馈电的馈电部件。
对于双极化天线,极化方向相互垂直的两个辐射体可以按照叠加交叉的方式设置于线路板上,但是这种设置方式在制造中存在大量焊接技术或者表面贴装技术,造成天线装置的加工制造工艺复杂、加工效率较低。
发明内容
本申请提供了一种天线装置和无线电通信设备,能够简化天线的加工制造工艺。
一方面,提供了一种天线装置,所述天线装置包括线路板和多个辐射体,其中,所述多个辐射体均位于所述线路板上,所述多个辐射体形成至少一个辐射体阵列,每个所述辐射体阵列包括第一列辐射体和第二列辐射体;
在每个辐射体阵列中,所述第一列辐射体的极化方向与所述第二列辐射体的极化方向相垂直,且所述第一列辐射体中的辐射体与所述第二列辐射体中的辐射体不叠加,所述第一列辐射体的第一辐射体的端部指向所述第二列辐射体中邻近的第二辐射体的目标位置范围处,以使相邻的第一辐射体和第二辐射体之间的隔离度满足隔离度指标且相距最近。
在一种示例中,第一列辐射体中的辐射体与第二列辐射体中的辐射体不叠加,第一列辐射体中的辐射体和第二列辐射体中的辐射体在物理空间位置上相互裂化,呈交错排布,以增大隔离度,可以减少甚至避免第一列辐射体的辐射体和第二列辐射体中的辐射体相互干扰。
在一种示例中,相邻的且一个位于第一列辐射体中和另一个位于第二列辐射体中的两个辐射体之间的隔离度达到隔离度指标的最低要求的基础上,让第一列辐射体和第二列辐射体尽可能的靠近,以节约天线装置的空间,使天线装置具备紧凑性。例如,第一列辐射体的第一辐射体的端部指向第二列辐射体中邻近的第二辐射体的目标位置范围处。其中,第一辐射体为第一列辐射体中的任一个辐射体,第二辐射体为第二列辐射体中的一个辐射体。
其中,相邻的第一辐射体和第二辐射体,如图3所示,可以是位于第一列辐射体中的辐射体和第二列辐射体中的辐射体,也可以是,位于第一列辐射体中的辐射体和第二列辐射体中的辐射体。
在一种示例中,当第一列辐射体的辐射体的端部指向第二列辐射体中邻近的辐射体的目标位置范围处,且辐射体和辐射体之间的隔离度达到隔离度指标的最低要求时,第一列辐射体和第二列辐射体之间的间距也达到最小。
其中,满足隔离度指标,可以是满足隔离度指标的最低要求,其中满足隔离度指标的最低要求可以是恰好等于最小的隔离度,或者,稍微大于最小的隔离度。例如,隔离度指标的最低要求是18db(decibel,分贝),那么,辐射体和辐射体之间的隔离度可以恰好为18db,或者,也可以稍微大于18db。
其中,辐射体(任意一个辐射体)的目标位置范围可以是该辐射体的中部位置和该辐射体的邻近中部位置的区域所形成的位置范围。例如,对于外观为线形形状的辐射体,可以是以辐射体所在的直线为坐标轴线,辐射体的中部位置为中心,向左指定距离和向右指定距离所形成的位置区间。这样,第一列辐射体的每个辐射体的端部可以指向第二列辐射体中邻近的辐射体的中部位置处,也可以指向第二列辐射体中邻近的辐射体的靠近其中部位置的某一个位置处。
其中,本申请对第一列辐射体的每个辐射体的端部的具体指向位置并不做绝对限定,能够满足隔离度指标的最小要求且最紧凑即可。
其中,一个辐射体的端部可以指向别的辐射体的目标位置范围内,也可以被别的辐射体的端部指向。
作为示例,如图1所示,在第一列辐射体包括辐射体2a、辐射体2b和辐射体2c三个辐射体,第二列辐射体包括辐射体2d、辐射体2e和辐射体2f三个辐射体的情况下,第一列辐射体中的每个辐射体与第二列辐射体中的一个或者两个辐射体邻近,第二列辐射体中的每个辐射体与第一列辐射体中的一个或者两个辐射体邻近。例如,如图3所示,第一列辐射体中与第二列辐射体的辐射体2f和辐射体2e两个辐射体邻近的辐射体2a,其端部指向第二列辐射体中的辐射体2f的目标位置范围内,其目标位置范围内也被第二列辐射体中的辐射体2e的端部指向。同样,第二列辐射体中与第一列辐射体的辐射体2a和辐射体2b两个辐射体邻近的辐射体2e,其端部指向第一列辐射体中邻近的辐射体2a的目标位置范围内,其目标位置范围内也被第一列辐射体中的另一个邻近的辐射体2b的端部指向。
基于上述所述,该阵列式的天线装置的所有辐射体在一个线路板上,也即是,共线路板,辐射体阵列中第一列辐射体中的每个辐射体的端部指向第二列辐射体中邻近的一个辐射体的目标位置范围内,这样在满足隔离度指标要求的基础上,第一列辐射体和第二列辐射体尽可能的靠近,实现天线装置的紧凑性。具有上述排布的双极化天线装置,与相关技术中通过辐射体叠加实现双极化相比,所有辐射体印刷在线路板上,加工制造工艺简单,生产效率高,制造成本低,可以实现天线装置的规模化。
在一种可能的实施方式中,所述第二辐射体的目标位置范围为所述第二辐射体的中部位置和所述第二辐射体的邻近中部位置的区域位置形成的位置范围。
在一种可能的实施方式中,在每个辐射体阵列中,所述第一列辐射体和所述第二列辐射体的物理位置相互入侵。
在一种示例中,第一列辐射体的辐射体的端部均伸入于第二列辐射体的阵列中,第二列辐射体的辐射体的端部均伸入于第一列辐射体的阵列中。例如,再次参考图3所示,位于第一列辐射体中的辐射体2a、辐射体2b、辐射体2c的端部均伸入于第二列辐射体的阵内,位 于第二列辐射体中的辐射体2d、辐射体2e、辐射体2f的端部均伸入于第一列辐射体的阵内。
这样,该天线装置中每个辐射体阵列的两列辐射体相互渗透,相互入侵,可以提升天线装置的空间利用率,有利于天线装置的紧凑性。
在一种可能的实施方式中,所述天线装置还包括馈电部件,所述馈电部件位于所述线路板上,且所述馈电部件分别与所述多个辐射体电性连接。
在一种示例中,与馈电部件垂直于线路板相比,馈电部件部署于线路板上可以简化馈电部件与辐射体之间的连接,省去大量的焊接或者贴装工艺。
馈电部件和辐射体共用一个线路板,即通过印刷的方式将馈电部件和辐射体部署在同一个线路板上,可以大大简化天线装置的加工制造,提高生产加工效率,节约成本,有利于天线装置的规模化生产。
在一种可能的实施方式中,所述天线装置还包括反射板,所述线路板安装在所述反射板上,所述反射板和所述线路板之间的距离在设定数值范围内。
在一种示例中,反射板可以使该天线装置为定向天线,可以向指定方向发射电磁波,可以接收指定方向发送的电磁波,实现天线装置的定向化。
在一种可能的实施方式中,
所述反射板的与所述第一列辐射体的第一边界相对应的位置处朝向所述线路板的方向弯折以形成第一倾斜面,所述第一列辐射体的第一边界为远离所述第二列辐射体的列边界,所述第一倾斜面用于反射所述第一列辐射体所在的辐射体阵列的第二列辐射体辐射的电磁波;
所述反射板的与所述第二列辐射体的第一边界相对应的位置处朝向所述线路板的方向弯折以形成第二倾斜面,所述第二列辐射体的第一边界为远离所述第一列辐射体的列边界,所述第二倾斜面用于反射所述第二列辐射体所在的辐射体阵列的第一列辐射体辐射的电磁波。
在一种示例中,第一倾斜面对第二列辐射体中的辐射体发出的电磁波进行反射,第二倾斜面对第一列辐射体中的辐射体发出的电磁波进行反射,可以用来优化该天线装置的方向图,提升方向图的对称性。
在一种可能的实施方式中,所述反射板的对应所述辐射体阵列中第一列辐射体和第二列辐射体的交界的位置处向所述线路板的方向凸起以形成第三倾斜面和第四倾斜面,所述第三倾斜面用于反射第二列辐射体的电磁波,所述第四倾斜面用于反射第一列辐射体的电磁波。
该天线装置通过反射板的第一倾斜面、第二倾斜面、第三倾斜面和第四倾斜面对辐射体的电磁波的反射作用,来优化该天线装置的方向图,提升该方向图的对称性,使得该天线装置的覆盖区域均匀化,提升通信质量。
在一种可能的实施方式中,所述第一列辐射体中的各个辐射体的极化方向为正45度,所述第二列辐射体中的各个辐射体的极化方向为负45度。
在一种示例中,第一列辐射体的极化方向可以为正45度,第二列辐射体的极化方向可以为负45度。或者,第一列辐射体的极化方向可以为负45度,第二列辐射体的极化方向可以为正45度。进而使得该天线装置具备双极化的特性。
在一种可能的实施方式中,所述辐射体包括高频辐射单元和低频辐射单元,其中,所述高频辐射单元和所述低频辐射单元平行位于所述线路板上。
其中,高频辐射单元的工作频段可以是5GHz,低频辐射单元的工作频段可以是2.4GHz,该天线装置具有2.4GHz和5GHz这两个工作频段,使得该天线装置为双频双极化天线,扩展 了该天线装置的功能。
在一种可能的实施方式中,所述对个辐射体中的每个辐射体包括相对称的两个辐射振子,所述两个辐射振子中第一辐射振子位于所述线路板的第一表面,所述两个辐射振子中第二辐射振子位于所述线路板的第二表面,所述第一表面与所述第二表面相对。
在一种可能的实施方式中,所述天线装置还包括保护罩,所述线路板和所述多个辐射体均位于所述保护罩中。
在一种示例中,线路板和位于线路板上的多个辐射体均被罩在保护罩中,对线路板和辐射体起到保护作用。
另一方面,还提供了一种无线电通信设备,所述无线电通信设备包括无线电设备和上述所述的天线装置,其中,所述天线装置的馈电部件与所述无线电设备电性连接。
本申请提供的天线装置包括线路板和位于线路板上的多个辐射体,多个辐射体可以组成至少一个辐射体阵列,每个辐射体阵列可以包括第一列辐射体和第二列辐射体,其中,第一列辐射体中的每个辐射体的端部指向第二列辐射体中邻近的一个辐射体的目标位置范围内,以满足隔离度指标要求,以及天线装置的紧凑性。具有上述排布的双极化天线装置,极化方向相垂直的第一列辐射体和第二列辐射体均印刷在同一个线路板上,可以简化加工制造工艺,降低制造成本,而且,极化方向相垂直的第一列辐射体和第二列辐射体相互裂开,且又相互入侵,在满足隔离度指标的基础上可以使天线装置更为紧凑。
附图说明
图1是本申请提供的一种天线装置的结构示意图;
图2是本申请提供的一种天线装置的结构示意图;
图3是本申请提供的一种天线装置的结构示意图;
图4是本申请提供的一种天线装置的结构示意图;
图5是本申请提供的一种天线装置的结构示意图;
图6是本申请提供的一种天线装置的结构示意图;
图7是本申请提供的一种天线装置的结构示意图。
图例说明
1、线路板;                             2、辐射体;
3、馈电部件;                           4、反射板;
20、辐射体阵列;                        21、高频辐射单元;
22、低频辐射单元;
41、第一倾斜面;                        42、第二倾斜面;
43、第三倾斜面;                        44、第四倾斜面
201、第一列辐射体;                     202、第二列辐射体;
211、高频辐射单元的辐射振子;           221、低频辐射单元的辐射振子。
具体实施方式
本申请涉及一种天线装置,该天线装置可以是无线接入点的天线装置,可以是基站的天线装置,也可以是路由器的天线装置等。该天线装置可以用来辐射电磁波,也可以用来接收 电磁波,还可以既辐射电磁波又接收电磁波。
如图1所示,该天线装置可以包括线路板1和多个辐射体2(如图1中所示的辐射体2a-2f),其中,多个辐射体2均位于线路板1上,多个辐射体2形成至少一个辐射体阵列20,每个辐射体阵列20包括第一列辐射体201和第二列辐射体202;在每个辐射体阵列20中,第一列辐射体201的极化方向与第二列辐射体202的极化方向相垂直,且第一列辐射体201中的辐射体2a-2c与第二列辐射体202中的辐射体2d-2f不叠加,第一列辐射体201的第一辐射体(例如,图1中辐射体2a、辐射体2b和辐射体2c中的任一个辐射体)的端部均指向第二列辐射体202中邻近的第二辐射体的目标位置范围处,以使相邻的第一辐射体和第二辐射体之间的隔离度满足隔离度指标且相距最近。其中,这两个辐射体相距最近也可以认为第一列辐射体201和第二列辐射体202相距最近。
在一种示例中,如图1所示,多个辐射体2可以组成一个辐射体阵列20,每个辐射体阵列20可以包括两列辐射体,可以记为第一列辐射体201和第二列辐射体202。例如,如图1所示,6个辐射体2a-2f形成一个辐射体阵列20,该辐射体阵列20的第一列辐射体201中包括三个辐射体2,为便于区分可以分别记为辐射体2a、辐射体2b和辐射体2c,第二列辐射体202中包括三个辐射体2,为了便于区分可以分别记为辐射体2d、辐射体2e和辐射体2f。又例如,如图2所示,12个辐射体可以组成两个辐射体阵列20,为了便于区分可以分别记为辐射体阵列20a和辐射体阵列20b,辐射体阵列20a的第一列辐射体201a中包括辐射体2a、辐射体2b和辐射体2c,第二列辐射体202a中包括辐射体2d、辐射体2e和辐射体2f,辐射体阵列20b的第一列辐射体201b中包括辐射体2g、辐射体2h和辐射体2i,第二列辐射体202b中包括辐射体2j、辐射体2k和辐射体2m。
其中,本实施例对该天线装置所包括的辐射体阵列20的个数不做限定,技术人员可以根据该天线装置所处的环境,灵活选择。
其中,下文中在未作特殊说明的情况下,第一列辐射体201和第二列辐射体202为同一个辐射体阵列20中的两列辐射体。
在一种示例中,为了使该天线装置具备双极化的特性,相应的,第一列辐射体201的极化方向和第二列辐射体202的极化方向相垂直。例如,第一列辐射体201的极化方向为正45度,第二列辐射体202的极化方向为负45度。或者,第一列辐射体201的极化方向为负45度,第二列辐射体202的极化方向为正45度。
在一种示例中,为了避免第一列辐射体201的辐射体2和第二列辐射体202中的辐射体2相互干扰,相应的,第一列辐射体201中的辐射体2与第二列辐射体202中的辐射体2不叠加,第一列辐射体201中的辐射体2和第二列辐射体202中的辐射体2在物理空间位置上相互裂化,呈交错排布,以增大隔离度。
为了满足天线装置的紧凑性,可以让相邻的且一个位于第一列辐射体201中和另一个位于第二列辐射体202中的两个辐射体2之间的隔离度达到隔离度指标的最低要求的基础上,让第一列辐射体201和第二列辐射体202尽可能的靠近,以节约天线装置的空间。可选地,第一列辐射体201的第一辐射体的端部指向第二列辐射体202中邻近的第二辐射体的目标位置范围处。其中,第一辐射体为第一列辐射体201中的任一个辐射体,第二辐射体为第二列辐射体202中的一个辐射体。
其中,相邻的第一辐射体和第二辐射体,如图3所示,可以是位于第一列辐射体201中 的辐射体2a和第二列辐射体202中的辐射体2f,也可以是,位于第一列辐射体201中的辐射体2a和第二列辐射体202中的辐射体2e。
在一种示例中,当第一列辐射体201的辐射体2a的端部指向第二列辐射体202中邻近的辐射体2f的目标位置范围处,且辐射体2a和辐射体2f之间的隔离度达到隔离度指标的最低要求时,第一列辐射体201和第二列辐射体202之间的间距也达到最小。
其中,满足隔离度指标,可以是满足隔离度指标的最低要求,其中满足隔离度指标的最低要求可以是恰好等于最小的隔离度,或者,稍微大于最小的隔离度。例如,隔离度指标的最低要求是18分贝(decibel,db),那么,辐射体2a和辐射体2f之间的隔离度可以恰好为18db,或者,也可以稍微大于18db。
其中,辐射体(任意一个辐射体)的目标位置范围可以是该辐射体的中部位置和该辐射体的邻近中部位置的区域所形成的位置范围。例如,对于外观为线形形状的辐射体,可以是以辐射体所在的直线为坐标轴线,辐射体的中部位置为中心,向左指定距离和向右指定距离所形成的位置区间。这样,第一列辐射体201的每个辐射体的端部可以指向第二列辐射体202中邻近的辐射体的中部位置处,也可以指向第二列辐射体202中邻近的辐射体的靠近其中部位置的某一个位置处。
其中,本实施例对第一列辐射体201的每个辐射体的端部的具体指向位置并不做绝对限定,能够满足隔离度指标的最小要求且最紧凑即可。
其中,一个辐射体的端部可以指向别的辐射体的目标位置范围内,也可以被别的辐射体的端部指向。
作为示例,如图1所示,在第一列辐射体201包括辐射体2a、辐射体2b和辐射体2c,第二列辐射体202包括辐射体2d、辐射体2e和辐射体2f的情况下,第一列辐射体201中的每个辐射体与第二列辐射体202中的一个或者两个辐射体邻近,第二列辐射体202中的每个辐射体与第一列辐射体201中的一个或者两个辐射体邻近。例如,如图3所示,第一列辐射体201中与第二列辐射体202的辐射体2f和辐射体2e两个辐射体邻近的辐射体2a,其端部指向第二列辐射体202中的辐射体2f的目标位置范围内,其目标位置范围内也被第二列辐射体202中的辐射体2e的端部指向。同样,第二列辐射体202中与第一列辐射体201的辐射体2a和辐射体2b两个辐射体邻近的辐射体2e,其端部指向第一列辐射体201中邻近的辐射体2a的目标位置范围内,其目标位置范围内也被第一列辐射体201中的另一个邻近的辐射体2b的端部指向。
基于上述所述,该阵列式的天线装置的所有辐射体2在一个线路板1上,也即是,共线路板,辐射体阵列中第一列辐射体201中的每个辐射体的端部指向第二列辐射体202中邻近的一个辐射体的目标位置范围内,这样在满足隔离度指标要求的基础上,第一列辐射体201和第二列辐射体202尽可能的靠近,实现天线装置的紧凑性。具有上述排布的双极化天线装置,与相关技术中通过辐射体叠加实现双极化相比,所有辐射体印刷在线路板上,加工制造工艺简单,生产效率高,制造成本低,可以实现天线装置的规模化。
在一种示例中,如图1至图3所示,该天线装置可以在满足隔离度指标的边界条件的基础上,第一列辐射体201和第二列辐射体202尽可能的靠近,使得在每个辐射体阵列20中,第一列辐射体201和第二列辐射体202的物理位置相互入侵。
也即是,第一列辐射体201的辐射体2的端部均伸入于第二列辐射体202的阵列中,第 二列辐射体202的辐射体2的端部均伸入于第一列辐射体201的阵列中。例如,再次参考图3所示,位于第一列辐射体201中的辐射体2a、辐射体2b、辐射体2c的端部均伸入于第二列辐射体202的阵内,位于第二列辐射体202中的辐射体2d、辐射体2e、辐射体2f的端部均伸入于第一列辐射体201的阵内。
这样,该天线装置中每个辐射体阵列20的两列辐射体相互渗透,相互入侵,可以提升天线装置的空间利用率,有利于天线装置的紧凑性。
在一种示例中,该天线装置还包括用于向辐射体2馈电的馈电部件3,为了进一步提升该天线装置的加工制造工艺,相应的,该天线装置的馈电部件3也可以印刷在线路板1上,如图4所示,馈电部件3位于线路板1上,且馈电部件3分别与多个辐射体2电性连接。
与馈电部件3垂直于线路板1相比,馈电部件3部署于线路板1上可以简化馈电部件3与辐射体2之间的连接,省去大量的焊接或者贴装工艺。
馈电部件3和辐射体2共用一个线路板1,即通过印刷的方式将馈电部件3和辐射体2铺设在同一个线路板1上,可以大大简化天线装置的加工制造,提高生产加工效率,节约成本,有利于天线装置的规模化生产。
在一种示例中,为了实现该天线装置的定向化,相应的,该天线装置还包括反射板4,其中,线路板1可以固定安装在反射板4上,反射板4与线路板1可以相互平行,两者之间的距离在设定数值范围内。
其中,设定数值范围可以根据天线装置的方向图中的各个参数的指标来确定,例如,可以根据方向图的对称性,方向图中主瓣的特性和副瓣的特性等来确定。
其中,反射板4的尺寸可以和线路板1上的多个辐射体2在线路板1上所占据的尺寸相适配,例如,反射板4的面积与该天线装置的全部辐射体2在线路板1上所占据的总面积相适配。
在一种示例中,为了进一步优化该天线装置的方向图,相应的,该反射板4可以具有倾斜面,对辐射体2的电磁波进行反射。
例如,如图5所示,反射板4的与第一列辐射体201的第一边界相对应的位置处朝向线路板1的方向弯折以形成第一倾斜面41,第一列辐射体201的第一边界为远离第二列辐射体202的列边界,第一倾斜面41用于反射第一列辐射体201所在的辐射体阵列20的第二列辐射体202辐射的电磁波;反射板4的与第二列辐射体202的第一边界相对应的位置处朝向线路板1的方向弯折以形成第二倾斜面42,第二列辐射体202的第一边界为远离第一列辐射体201的列边界,第二倾斜面42用于反射第二列辐射体202所在的辐射体阵列20的第一列辐射体201辐射的电磁波。
其中,第一列辐射体201的列边界是由第一列辐射体201中的辐射体2的端部形成的边界,第二列辐射体202的列边界是由第二列辐射体202中的辐射体2的端部形成的边界。
在一种示例中,第一列辐射体201的第一边界是第一列辐射体201中的辐射体2的远离第二列辐射体202的端部形成的边界,第一列辐射体201的第二边界是第一列辐射体201中的辐射体2的邻近第二列辐射体202的端部形成的边界。同样,第二列辐射体202的第一边界是第二列辐射体202中的辐射体2的远离第一列辐射体201的端部形成的边界,第二列辐 射体202的第二边界是第二列辐射体202中的辐射体2的邻近第一列辐射体201的端部形成的边界。
其中,为了便于清楚介绍,可以引入方位名词上方和下方,例如,如图5所示,可以以线路板1所在的位置为上方,以反射板4所在的位置为下方。
在一种示例中,反射板4的与第一列辐射体201的第一边界相对应的位置处朝向线路板1的方向弯折以形成第一倾斜面41,也即是,反射板4的位于第一列辐射体201的第一边界的下方部分朝向线路板1的方向弯折,升起指定高度,形成第一倾斜面41。
同样,反射板4的与第二列辐射体202的第一边界相对应的位置处朝向线路板1的方向弯折以形成第二倾斜面42,也即是,反射板4的位于第二列辐射体202的第一边界的下方部分朝向线路板1的方向弯折,升起指定高度,形成第二倾斜面42。
这样,第一倾斜面41反射第二列辐射体202的电磁波,第二倾斜面42反射第一列辐射体201的电磁波。
其中,指定高度取决于第一倾斜面41和第二倾斜面42相对于反射板4的本体部分的倾斜角度,而第一倾斜面41和第二倾斜面42相对于反射板14的主体部分的倾斜角度,可以通过该天线装置的方向图来确定。例如,第一倾斜面41和第二倾斜面42相对于反射板4的主体部分的倾斜角度可以是45度或者60度。本实施例对第一倾斜面41和第二倾斜面42相对于反射板4的主体部分的倾斜角度不做限定,技术人员可以根据实际情况灵活调整。
为了进一步优化该天线装置的方向图,相应的,如图6所示,反射板4的对应辐射体阵列20中第一列辐射体201和第二列辐射体202的交界的位置处向线路板1的方向凸起以形成第三倾斜面43和第四倾斜面44,第三倾斜面43反射第二列辐射体202的电磁波,第四倾斜面44反射第一列辐射体201的电磁波。
其中,第一列辐射体201和第二列辐射体202的交界的位置处,也即是,第一列辐射体201和第二列辐射体202相互靠近的位置处,也即是,第一列辐射体201的第二边界和第二列辐射体202的第二边界交叉处。
在一种示例中,反射板4的位于第一列辐射体201和第二列辐射体202交界正下方的位置处朝向线路板1的方向凸起指定距离,以形成第三倾斜面43和第四倾斜面44,如图6所示,第三倾斜面43面向第二列辐射体202,以反射第二列辐射体202的电磁波,第四倾斜面44面向第一列辐射体201,以反射第一列辐射体201的电磁波。
其中,第一倾斜面41和第二倾斜面42对该天线装置的方向图可以起到粗优化的效果,第三倾斜面43和第四倾斜面44对该天线装置的方向图可以起到细优化的效果。
这样,该天线装置通过反射板4的第一倾斜面41、第二倾斜面42、第三倾斜面43和第四倾斜面44对辐射体2的电磁波的反射作用,来优化该天线装置的方向图,提升该方向图的对称性,使得该天线装置的覆盖区域均匀化,提升通信质量。
在一种示例中,多个辐射体2中的每个辐射体2均可以由两个对称的辐射振子组成,两个辐射振子位于线路板1上,例如,相对称的两个辐射振子中,一个辐射振子位于线路板1的第一表面上,另一个辐射振子位于线路板1的第二表面上,其中线路板1的第一表面和第二表面互为正反面,位于线路板1的第一表面上的辐射振子可以记为第一辐射振子,位于第二表面上的辐射振子可以记为第二辐射振子。
在一种示例中,该天线装置可以是单频天线,相应的,每个辐射体2可以包括两个相对称的辐射振子,这两个相对称的辐射振子中一个位于线路板1的第一表面另一个位于线路板1的第二表面。
在一种示例中,该天线装置也可以是双频天线,相应的,如图7所示,每个辐射体2可以包括高频辐射单元21和低频辐射单元22,其中,高频辐射单元21和低频辐射单元22平行位于线路板1上。其中图7中只示例了第一列辐射体201中的辐射体2a和第二列辐射体202中的辐射体2f,其它辐射体的具体结构都类似,不再一一示例。
其中,高频辐射单元21的工作频段可以是5GHz,低频辐射单元22的工作频段可以是2.4GHz,该天线装置具有2.4GHz和5GHz这两个工作频段。
在一种示例中,同单频天线类似,对于双频天线,高频辐射单元21也可以包括两个相对称的辐射振子211,低频辐射单元22也可以包括相对称的辐射振子221。例如,如图7所示,对于第一列辐射体201中的辐射体2a,其包括高频辐射单元21和低频辐射单元22,高频辐射单元21包括辐射振子211a和辐射振子211b,其中,辐射振子211a位于线路板1的第一表面上,辐射振子211b位于线路板1的第二表面上。低频辐射单元22包括辐射振子221a和辐射振子221b,辐射振子221a位于线路板1的第一表面上,辐射振子221b位于线路板1的第二表面上。
同样,对于第二列辐射体202中的辐射体2f,其包括高频辐射单元21和低频辐射单元22,高频辐射单元21包括辐射振子211a和辐射振子211b,其中,辐射振子211a可以位于线路板1的第一表面上,辐射振子211b可以位于线路板1的第二表面上。低频辐射单元22包括辐射振子221a和辐射振子221b,其中,辐射振子221a位于线路板1的第一表面上,辐射振子221b位于线路板1的第二表面上。
其中,第一列辐射体201中其他辐射体的具体结构和辐射体2a类似,第二列辐射体202中的其它辐射体的具体结构和辐射体2f类似。
可见,该天线装置可以为双频双极化天线,其两个工作频段上的辐射体位于同一个线路板,实现天线装置的共线路板和共口径,共口径也即是该天线装置的高频工作频段和低频工作频段共用一个辐射体阵列,这样高频辐射单元和低频辐射单元无需再通过合路连接实现共口径,进一步简化加工制造工艺。
在一种示例中,该天线装置还可以包括保护罩,线路板1和多个辐射体2均位于该保护罩中。例如,该保护罩可以罩在反射板4上,反射板4可以作为该天线装置的底座,保护罩罩在反射板4上,保护罩作为该天线装置的上盖,线路板1和铺设在线路板1上的多个辐射体2均位于反射板4和保护罩所形成的的密封空间中。
或者,该天线装置还可以包括底座,反射板4安装在底座上,线路板1安装在反射板4上,多个辐射体2和馈电部件3印刷在线路板1上,保护罩罩在底座上,反射板4、线路板1和位于线路板1上的多个辐射体2和馈电部件3均位于底座和保护罩所形成的密封空间中。
在本申请中,该天线装置包括线路板和位于线路板上的多个辐射体,多个辐射体可以组成至少一个辐射体阵列,每个辐射体阵列可以包括第一列辐射体和第二列辐射体,其中,第一列辐射体中的每个辐射体的端部指向第二列辐射体中邻近的一个辐射体的目标位置范围内,以满足隔离度指标要求,以及天线装置的紧凑性。具有上述排布的双极化天线装置,极化方向相垂直的第一列辐射体和第二列辐射体均印刷在同一个线路板上,可以简化加工制造工艺, 降低制造成本,而且,极化方向相垂直的第一列辐射体和第二列辐射体相互裂开,且又相互入侵,在满足隔离度指标的基础上可以使天线装置更为紧凑。
另外,该天线装置的辐射体和馈电部件均印刷在同一个线路板上,可以简化加工制造工艺,节约成本,有利于该天线装置的规模化生产。
本申请实施例还提供了一种无线电通信设备,该无线电通信设备可以包括信号机和上述所述的天线装置,信号机与该天线装置的馈电部件电性连接。其中,该信号机可以是信号发射机,也可以是信号接收机,还可以是既能发射信号又能接收信号的信号收发机。
该无线电通信设备的天线装置如上述所述,可以包括线路板和位于线路板上的多个辐射体,多个辐射体可以组成至少一个辐射体阵列,每个辐射体阵列可以包括第一列辐射体和第二列辐射体,其中,第一列辐射体中的每个辐射体的端部指向第二列辐射体中邻近的一个辐射体的目标位置范围内,以满足隔离度指标要求,以及天线装置的紧凑性。具有上述排布的双极化天线装置,极化方向相垂直的第一列辐射体和第二列辐射体均印刷在同一个线路板上,共线路板,可以简化加工制造工艺,降低制造成本,而且,极化方向相垂直的第一列辐射体和第二列辐射体相互裂开,且又相互入侵,在满足隔离度指标的基础上可以使天线装置更为紧凑。
以上所述仅为本申请一个实施例,并不用以限制本申请,凡在本申请的原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (11)

  1. 一种天线装置,其特征在于,所述天线装置包括线路板(1)和多个辐射体(2),其中,所述多个辐射体(2)均位于所述线路板(1)上,所述多个辐射体(2)形成至少一个辐射体阵列(20),每个所述辐射体阵列(20)包括第一列辐射体(201)和第二列辐射体(202);
    在每个辐射体阵列(20)中,所述第一列辐射体(201)的极化方向与所述第二列辐射体(202)的极化方向相垂直,且所述第一列辐射体(201)中的辐射体与所述第二列辐射体(202)中的辐射体不叠加,所述第一列辐射体(201)的第一辐射体的端部指向所述第二列辐射体(202)中邻近的第二辐射体的目标位置范围处,以使相邻的第一辐射体和第二辐射体之间的隔离度满足隔离度指标,所述第一辐射体为所述第一列辐射体(201)中的任意一个辐射体。
  2. 根据权利要求1所述的天线装置,其特征在于,所述第二辐射体的目标位置范围为所述第二辐射体的中部位置和所述第二辐射体的邻近中部位置的区域形成的位置范围。
  3. 根据权利要求1或2所述的天线装置,其特征在于,所述天线装置还包括馈电部件(3),所述馈电部件(3)位于所述线路板(1)上,且所述馈电部件(3)分别与所述多个辐射体(2)电性连接。
  4. 根据权利要求1至3任一所述的天线装置,其特征在于,所述天线装置还包括反射板(4),所述线路板(1)安装在所述反射板(4)上,所述反射板(4)和所述线路板(1)之间的距离在设定数值范围内。
  5. 根据权利要求4所述的天线装置,其特征在于:
    所述反射板(4)的与所述第一列辐射体(201)的第一边界相对应的位置处朝向所述线路板(1)的方向弯折以形成第一倾斜面(41),所述第一列辐射体(201)的第一边界为远离所述第二列辐射体(202)的列边界,所述第一倾斜面(41)用于反射所述第一列辐射体(201)所在的辐射体阵列(20)的第二列辐射体(202)辐射的电磁波;
    所述反射板(4)的与所述第二列辐射体(202)的第一边界相对应的位置处朝向所述线路板(1)的方向弯折以形成第二倾斜面(42),所述第二列辐射体(202)的第一边界为远离所述第一列辐射体(201)的列边界,所述第二倾斜面(42)用于反射所述第二列辐射体(202)所在的辐射体阵列(20)的第一列辐射体(201)辐射的电磁波。
  6. 根据权利要求4或5所述的天线装置,其特征在于,所述反射板(4)的对应所述辐射体阵列(20)中第一列辐射体(201)和第二列辐射体(202)的交界的位置处向所述线路板(1)的方向凸起以形成第三倾斜面(43)和第四倾斜面(44),所述第三倾斜面(43)用于反射所述第二列辐射体(202)辐射的电磁波,所述第四倾斜面(44)用于反射所述第一列辐射体(201)辐射的电磁波。
  7. 根据权利要求1至6任一所述的天线装置,其特征在于,所述第一列辐射体(201)中的各个辐射体的极化方向为正45度,所述第二列辐射体(202)中的各个辐射体的极化方向为负45度。
  8. 根据权利要求1至7任一所述的天线装置,其特征在于,所述多个辐射体(2)中的每个辐射体(2)包括高频辐射单元(21)和低频辐射单元(22),其中,所述高频辐射单元(21)和所述低频辐射单元(22)平行位于所述线路板(1)上。
  9. 根据权利要求1至8任一所述的天线装置,其特征在于,所述多个辐射体(2)中的每个辐射体(2)包括相对称的两个辐射振子,所述两个辐射振子中第一辐射振子位于所述线路板(1)的第一表面,所述两个辐射振子中第二辐射振子位于所述线路板(1)的第二表面,所述第一表面与所述第二表面相对。
  10. 根据权利要求1至9任一所述的天线装置,其特征在于,所述天线装置还包括保护罩,所述线路板(1)和所述多个辐射体(2)均位于所述保护罩中。
  11. 一种无线电通信设备,其特征在于,所述无线电通信设备包括无线电设备和权利要求1至10任一所述的天线装置,其中,所述天线装置的馈电部件(3)与所述无线电设备电性连接。
PCT/CN2021/094709 2020-05-22 2021-05-19 天线装置和无线电通信设备 WO2021233353A1 (zh)

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