WO2021128325A1 - 一种校准单元及天线 - Google Patents

一种校准单元及天线 Download PDF

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Publication number
WO2021128325A1
WO2021128325A1 PCT/CN2019/129393 CN2019129393W WO2021128325A1 WO 2021128325 A1 WO2021128325 A1 WO 2021128325A1 CN 2019129393 W CN2019129393 W CN 2019129393W WO 2021128325 A1 WO2021128325 A1 WO 2021128325A1
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Prior art keywords
calibration unit
isolation
power
power divider
calibration
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PCT/CN2019/129393
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English (en)
French (fr)
Inventor
沈亚川
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瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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Priority to PCT/CN2019/129393 priority Critical patent/WO2021128325A1/zh
Publication of WO2021128325A1 publication Critical patent/WO2021128325A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements

Definitions

  • the utility model relates to the technical field of communication, in particular to a calibration unit and an antenna.
  • the purpose of the utility model is to provide a calibration unit and an antenna.
  • the utility model provides a calibration unit for calibrating the radio frequency entrance of its back-end antenna.
  • the calibration unit includes a circuit board and a power divider arranged on the circuit board and at least two symmetrically arranged on the power divider. Couplers connected to the power splitter on opposite sides of the power splitter, and the two couplers are opposite in a first direction;
  • each of the couplers includes an input end, a coupling end, a through end, an isolation end, a first connection part connecting the coupling end and the isolation end, and a second connection part connecting the input end and the through end ,
  • the second connection portion is parallel to the first connection portion and extends along a second direction, the second direction is perpendicular to the first direction, and the first connection portion is connected to the power in the first direction.
  • the distance between the dividers is smaller than the distance between the second connecting portion and the power divider;
  • the input end extends toward the power splitter along the first direction, and is used for connecting with an external radio frequency source;
  • the coupling end is parallel to the input end and connected to the power splitter
  • the through end extends in the same direction as the input end and is used to connect to the radio frequency inlet of the antenna;
  • the isolation end extends in the same direction as the input end.
  • the isolation terminal is matched by resistance.
  • the power divider includes a calibration terminal, a first power divider and a second power divider, wherein the first power divider and the second power divider are both connected to the calibration terminal and the coupling end,
  • the first power division part and the second power division part are symmetrically arranged on opposite sides of the calibration end and are opposite in the first direction.
  • the circuit board includes a reinforcing plate, a ground layer, a first substrate, a calibration unit signal line layer, an adhesive layer, and a second substrate that are sequentially stacked;
  • the calibration unit is formed on the signal line layer of the calibration unit.
  • the calibration unit further includes an isolation wall arranged around the power splitter and the coupler.
  • the isolation wall includes a first isolation portion and a second isolation portion, wherein the first isolation portion is arranged around the power splitter and the coupler; the second isolation portion is arranged at The power splitter and the coupler are connected to the first isolation part.
  • the isolation wall further includes a third isolation portion, the third isolation portion is disposed between the first power division portion and the second power division portion, and is connected to the second isolation portion.
  • the circuit board is provided with a plurality of through holes arranged in rows around the calibration unit, and the through holes are filled with a conductive medium and the conductive medium is grounded to form the isolation wall.
  • the input terminal is provided with a power feeding port
  • the distance between two adjacent power feeding ports is at least 20 mm.
  • the present invention also provides an antenna, which includes the aforementioned calibration unit.
  • the calibration unit provided by the present invention arranges the coupler symmetrically on opposite sides of the power divider in the first direction, and extends the input end of the coupler toward the power divider, and the coupler
  • the coupling end is parallel to the input end and connected to the power divider.
  • the through end of the coupler and the input end are extended in the same direction to set the input end, which can effectively reduce the size of the calibration unit in the second direction.
  • the first directions are perpendicular to each other.
  • the input end of the coupler extends toward the power splitter, so that the distance D between the feeding ports of the two adjacent input ends of the two adjacent two calibration units in the first direction becomes larger.
  • the feed port When the calibration unit is in use, the feed port must be connected to an external radio frequency source through an adapter, and the adapter needs to take up a certain amount of space to be installed on the circuit board. As the distance between two adjacent power feeding ports is increased, space is provided for the adapter, and the rotation of the adapter is facilitated.
  • Figure 1 is a partial three-dimensional structure diagram of the calibration unit provided by the utility model
  • Fig. 2 is a schematic top view of the structure of Fig. 1;
  • FIG. 3 is a schematic diagram of the structure of two calibration unit arrays
  • Fig. 4 is a schematic diagram of a circuit board of the calibration unit
  • Fig. 5 is a schematic diagram of a three-dimensional structure of a deformed structure of the calibration unit
  • Fig. 6 is a schematic top view of a modified structure of the calibration unit
  • Fig. 7 is a schematic diagram of a three-dimensional structure of an antenna provided by the utility model.
  • the present invention provides a calibration unit 1, the calibration unit 1 is used to calibrate the signal of the radio frequency entrance of the antenna at the back end, the calibration unit 1 includes a circuit board 2 and a power divider set on the circuit board 2 The power divider 3 and at least two couplers 4 symmetrically arranged on opposite sides of the power divider 3 and connected to the power divider 3, and the two couplers 4 are oppositely arranged in the first direction.
  • each coupler 4 includes an input end 41, a coupling end 42, a through end 43, an isolation end 44, a first connection part 45 and a second connection part 46.
  • the first connection portion 45 connects the coupling end 42 and the isolation end 44
  • the second connection portion 46 connects the input end 41 and the through end 43
  • the second connection portion 46 is parallel to the first connection portion 45 and extends along the second direction.
  • the second direction and the first direction are perpendicular to each other.
  • the distance D1 between the first connection portion 45 and the power divider 3 is smaller than the distance D2 between the second connection portion 46 and the power divider 3.
  • the input terminal 41 extends in the first direction toward the power splitter 3 and is used for connecting with an external radio frequency source
  • the coupling terminal 42 is parallel to the input terminal 41 and is connected to the power splitter 3.
  • the through end 43 extends in the same direction as the input end 41 and is used to connect to the radio frequency inlet of the antenna, and the isolation end 44 extends in the same direction as the input end 41.
  • the isolation terminal 44 is matched by resistance.
  • the input terminal 41 is provided with a power feeding port 411, and the power feeding port 411 is used for connecting with an external radio frequency source.
  • the two calibration units 1 when two calibration units 1 are arranged along the first direction, the two calibration units 1 are connected in parallel through a two-stage power divider 6.
  • the circuit board 2 can be shared, or the circuit boards 2 can be independent of each other, which is not limited here.
  • circuit board 2 shared by two calibration units is taken as an example for description.
  • each calibration unit 1 Since the coupler 4 of each calibration unit 1 is symmetrically arranged on the opposite sides of the power divider 3, and the input end 41 of the coupler 4 is extended toward the power divider 3, the coupling end 42 and the input end 41 are parallel and parallel to The power divider 3 is connected, and the through terminal 43 and the input terminal 41 are extended in the same direction as the input terminal 41, so that the size of the calibration unit 1 in the second direction can be effectively reduced.
  • the input terminal 41 of the coupler 4 extends toward the power splitter 3, so that the distance between the feeding ports 411 of the two adjacent input terminals 41 of the two adjacent two calibration units 1 in the first direction is D becomes larger.
  • the power feeding port 411 is connected to an external radio frequency source through the adapter 7, and the adapter 7 is installed on the circuit board 2 to occupy a certain space.
  • space is provided for the adapter 7 to facilitate the screwing of the adapter 7, where the adapter 7 may be an SMA connector or an SMP connector.
  • the distance between two adjacent feeding ports 411 of the two calibration units 1 arranged along the first direction is at least 20mm, that is, D>20mm, which is convenient for simultaneous welding and debugging of multiple ports.
  • the power divider 3 includes a calibration terminal 31, a first power divider 32, and a second power divider 33.
  • the first power divider 32 and the second power divider 33 are both connected to the calibration terminal 31 and the coupling end of the coupler 4. 42 is connected, the first power division portion 32 and the second power division portion 33 are symmetrically arranged on opposite sides of the calibration end 31 along the second direction, and face each other in the first direction.
  • the calibration unit 1 The axis of symmetry is L.
  • the power divider 3 is a 3dB equal power divider, and the coupling degree of the coupler 4 is -15dB.
  • the circuit board 2 includes a reinforcing plate 21, a ground layer 22, a first substrate 23, a calibration unit signal line layer 24, an adhesive layer 25, and a second substrate 26 that are sequentially stacked.
  • the unit 1 is formed on the calibration unit signal line layer 24.
  • the circuit board 2 further includes an external layer 27.
  • the external layer 27 is electrically connected to the calibration unit signal line layer 24 through metal vias or conductive elements, and pads are formed on the external layer 27 to facilitate the calibration unit signal line layer 24 and The radio frequency entrance of the antenna or external radio frequency source connection.
  • the calibration unit 1 further includes an isolation wall 5, and the isolation wall 5 is arranged around the power splitter 3 and the coupler 4.
  • the isolation wall 5 can be formed by a plurality of through holes arranged in a row through the circuit board 2 at the periphery of the circuit board 2 where the calibration unit 1 is provided, and the through holes are filled with a conductive medium and passed through the belt The shaped wire or wire grounds the conductive medium to form the isolation wall 5.
  • the isolation wall 5 includes a first isolation portion 51 and a second isolation portion 52, wherein the first isolation portion 51 is arranged around the power divider 3 and the coupler 4; the second isolation portion 52 is arranged on the power divider 3 and the coupler 4 and connected to the first isolation portion 51.
  • the isolation wall 5 further includes a third isolation portion 53, and the third isolation portion 53 is disposed between the first power division portion 32 and the second power division portion 33 and is connected to the second isolation portion 52.
  • the present invention also provides an antenna 10 that works in a 5G frequency band, and the 5G frequency band includes at least one of the 3400-3800MHz frequency band, the 2500-2700MHz frequency band, or the 4800-5000MHz frequency band.
  • the antenna 10 includes a radiation component 20 and a calibration unit 1 electrically connected to the radio frequency inlet 201 of the radiation component 20.
  • the calibration unit 1 is used to calibrate the amplitude and phase of the input signal of the radio frequency inlet 201, and the radiation component 20 may be one or more, which is not limited here.
  • the calibration unit provided by the present invention arranges the coupler symmetrically on opposite sides of the power divider in the first direction, and extends the input end of the coupler toward the power divider, and the coupler
  • the coupling end is parallel to the input end and connected to the power divider.
  • the through end of the coupler and the input end are extended in the same direction to set the input end, which can effectively reduce the size of the calibration unit in the second direction.
  • the first directions are perpendicular to each other.
  • the input end of the coupler extends toward the power splitter, so that the distance D between the feeding ports of the two adjacent input ends of the two adjacent two calibration units in the first direction becomes larger.
  • the feed port When the calibration unit is in use, the feed port must be connected to an external radio frequency source through an adapter, and the adapter needs to take up a certain amount of space to be installed on the circuit board. As the distance between the two adjacent power feed ports increases, space is provided for the adapter, which facilitates the screwing of the adapter.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Support Of Aerials (AREA)

Abstract

本实用新型提供一种校准单元及天线，其中，校准单元包括电路板以及设置于电路板的功分器及至少两个对称布设于功分器的相对两侧并与功分器连接的耦合器，且两耦合器在第一方向上相对；其中，每个耦合器包括输入端、耦合端、直通端、隔离端、连接耦合端与隔离端的第一连接部以及连接输入端和直通端的第二连接部，第二连接部与第一连接部平行且沿第二方向延伸，第二方向与第一方向垂直，在第一方向上第一连接部与功分器之间的距离小于第二连接部与功分器之间的距离；输入端沿第一方向朝向功分器延伸，用于与外部射频源连接；耦合端与输入端平行并与功分器连接；直通端与输入端同向延伸，用于与天线的射频入口连接；隔离端与输入端同向延伸。

Description

一种校准单元及天线 技术领域
本实用新型涉及通讯技术领域，尤其涉及一种校准单元及天线。
背景技术
移动通信技术将会极大地改变人们现有的生活方式，推动社会不断发展。在未来一段时间内的主流通信频段有4G和5G，为了适应未来通信技术高速率、低延时、高容量等技术特点，天线也将更多的采用具有大规模阵列天线单元，为了实现阵列天线中每个天线单元的功率和相位的调节，需要用到天线的校准单元，为了配合天线小型化的需求，校准单元对应的也要实现小型化。
因此，有必要提供一种结构紧凑的校准单元以解决上述问题。
发明概述
技术问题
本实用新型的目的在于提供一种校准单元及天线。
问题的解决方案
技术解决方案
本实用新型提供了一种校准单元，用于校准其后端天线的射频入口，所述校准单元包括电路板以及设置于所述电路板的功分器及至少两个对称布设于所述功分器的相对两侧并与所述功分器连接的耦合器，且两所述耦合器在第一方向上相对；
其中，每个所述耦合器包括输入端、耦合端、直通端、隔离端、连接所述耦合端与所述隔离端的第一连接部以及连接所述输入端和所述直通端的第二连接部，所述第二连接部与所述第一连接部平行且沿第二方向延伸，所述第二方向与所述第一方向垂直，在第一方向上所述第一连接部与所述功分器之间的距离小于所述第二连接部与所述功分器之间的距离；
所述输入端沿所述第一方向朝向所述功分器延伸，用于与外部射频源连接；
所述耦合端与所述输入端平行并与所述功分器连接；
所述直通端与所述输入端同向延伸，用于与天线的射频入口连接；
所述隔离端与所述输入端同向延伸。
优选地，所述隔离端通过电阻匹配。
优选地，所述功分器包括校准端、第一功分部及第二功分部，其中，第一功分部及第二功分部均与所述校准端以及所述耦合端连接，所述第一功分部和第二功分部对称布设于所述校准端的相对两侧且在所述第一方向上相对。
优选地，所述电路板包括依次叠设的加强板、接地层、第一基板、校准单元信号线层、粘合层以及第二基板；
所述校准单元形成于所述校准单元信号线层。
优选地，所述校准单元还包括隔离墙，所述隔离墙布设于所述功分器及所述耦合器的四周。
优选地，所述隔离墙包括第一隔离部和第二隔离部，其中，所述第一隔离部围设于所述功分器及所述耦合器的四周；所述第二隔离部设置于所述功分器和耦合器之间并与所述第一隔离部连接。
优选地，所述隔离墙还包括第三隔离部，所述第三隔离部设置于所述第一功分部和第二功分部之间，并与所述第二隔离部连接。
优选地，所述电路板在所述校准单元的四周开设有多个呈排状设置通孔，所述通孔内填充有导电介质且所述导电介质接地以形成所述隔离墙。
优选地，所述输入端设置有馈电口；
当两个所述校准单元沿所述第一方向布设时，两个相邻的所述馈电口之间的间距至少为20mm。
本实用新型还提供一种天线，所述天线包括前述的校准单元。
发明的有益效果
有益效果
与现有技术相比，本实用新型所提供的校准单元将耦合器对称布设于功分器在第一方向的相对两侧，并将耦合器的输入端朝向功分器延伸设置，将耦合器的耦合端与输入端平行并与功分器连接设置，将耦合器的直通端与输入端同向延伸设置输入端，从而可以有效缩减校准单元在第二方向的尺寸，其中，第二方 向与第一方向相互垂直。
进一步，耦合器的输入端朝向功分器延伸设置，使得两个相邻布设的两个校准单元相邻的两个输入端的馈电口在第一方向之间的距离D变大。校准单元在使用时，馈电口是要通过转接头与外部射频源连接，且转接头安装于电路板是需要占用一定空间。由于相邻的两个馈电口之间的距离增大，从而为转接头提供了空间，进而方便转接头的拧转。
对附图的简要说明
附图说明
图1为本实用新型提供的校准单元的部分立体结构示意图；
图2为图1的俯视结构示意图；
图3为两个校准单元阵列设置的结构示意图；
图4为校准单元的电路板的示意图；
图5为校准单元一种变形结构的立体结构示意图；
图6为校准单元一种变形结构的俯视结构示意图；
图7为本实用新型实提供的一种天线的立体结构示意图。
发明实施例
具体实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
需要说明的是，在本实用新型中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本实用新型要求的保护范围之内。
请参照图1-2，本实用新型提供一种校准单元1，该校准单元1用于校准其后端的天线的射频入口的信号，校准单元1包括电路板2以及设置于电路板2的功分器3及至少两个对称布设于功分器3的相对两侧并与功分器3连接的耦合器4，且两耦合器4在第一方向上相对设置。
其中，每个耦合器4包括输入端41、耦合端42、直通端43、隔离端44、第一连接部45及第二连接部46。其中，第一连接部45连接耦合端42和隔离端44，第二连接部46连接输入端41和直通端43，且第二连接部46与第一连接部45平行并沿第二方向延伸，第二方向和第一方向相互垂直。
在第一方向上第一连接部45与功分器3之间的距离D1小于第二连接部46与功分器3之间的距离D2。
输入端41沿第一方向朝向功分器3延伸，用于与外部射频源连接，耦合端42与输入端41平行并与功分器3连接。直通端43与输入端41同向延伸，用于与天线的射频入口连接，隔离端44与输入端41同向延伸。
较佳地，该隔离端44通过电阻匹配。
较佳地，输入端41设置有馈电口411，该馈电口411用于与外部射频源连接。
请参阅图3，当两个校准单元1在沿着第一方向布设时，两个校准单元1通过一个二级功分器6实现并联。该两个校准单元1并联时可以共用电路板2，或者彼此均有独立的电路板2，在此不做限定。
本实施例以两个校准单元共用电路板2为例进行说明。
由于每一校准单元1的耦合器4对称布设于功分器3的相对两侧，并将耦合器4的输入端41朝向功分器3延伸设置，将耦合端42与输入端41平行并与功分器3连接设置，将直通端43与输入端41同向延伸设置输入端41，从而可以有效缩减校准单元1在第二方向的尺寸。
进一步，耦合器4的输入端41朝向功分器3延伸设置，使得两个相邻布设的两个校准单元1相邻的两个输入端41的馈电口411在第一方向之间的距离D变大。校准单元1在使用时，馈电口411是要通过转接头7与外部射频源连接，且转接头7安装于电路板2是需要占用一定空间。由于相邻的两个馈电口411之间的距离增大，从而为转接头7提供了空间，进而方便转接头7的拧转，其中，转接头7可以是 SMA接头或SMP接头。
较佳地，两个沿着第一方向布设的校准单元1的两个相邻馈电口411之间的间距至少为20mm，即，D＞20mm，便于多端口同时焊接调试。
功分器3包括校准端31、第一功分部32和第二功分部33，其中，第一功分部32及第二功分部33均与校准端31以及耦合器4的耦合端42连接，第一功分部32和第二功分部33沿第二方向对称布设于校准端31的相对两侧，且在第一方向上相对，如图2所示，所述校准单元1的对称轴为L。
较佳地，功分器3为3dB等功分器，耦合器4的耦合度为-15dB。
请参阅图4，在部分实施例中，电路板2包括依次叠设的加强板21、接地层22、第一基板23、校准单元信号线层24、粘合层25以及第二基板26，校准单元1形成于校准单元信号线层24。
较佳地，电路板2还包括外接层27，外接层27与校准单元信号线层24通过金属过孔或导电件电连接，且外接层27上形成有焊盘以便校准单元信号线层24与天线的射频入口或外部射频源连接。
请参阅图5-6，在部分实施例中，校准单元1还包括隔离墙5，隔离墙5布设于功分器3及耦合器4的四周。其中，隔离墙5的形成方式可以是在电路板2设置有校准单元1的四周开始有贯穿电路板2的多个呈排状设置的通孔，并在通孔内填充有导电介质并通过带状线或导线使得导电介质接地以形成隔离墙5。
具体地，隔离墙5包括第一隔离部51和第二隔离部52，其中，第一隔离部51围设于功分器3及耦合器4的四周；第二隔离部52设置于功分器3和耦合器4之间并与第一隔离部51连接。
较佳地，隔离墙5还包括第三隔离部53，第三隔离部53设置于第一功分部32和第二功分部33之间，并与第二隔离部52连接。
请参阅图7，本实用新型还提供一种天线10，该天线10工作于5G频段，5G频段至少包括3400-3800MHz频段、2500-2700MHz频段或4800-5000MHz频段中的至少一个频段。
天线10包括辐射组件20以及与辐射组件20的射频入口201电连接的校准单元1。其中，校准单元1用于校准射频入口201的输入信号幅度和相位，辐射组件20可 以是一个或多个，在此不做限定。
与现有技术相比，本实用新型所提供的校准单元将耦合器对称布设于功分器在第一方向的相对两侧，并将耦合器的输入端朝向功分器延伸设置，将耦合器的耦合端与输入端平行并与功分器连接设置，将耦合器的直通端与输入端同向延伸设置输入端，从而可以有效缩减校准单元在第二方向的尺寸，其中，第二方向与第一方向相互垂直。
进一步，耦合器的输入端朝向功分器延伸设置，使得两个相邻布设的两个校准单元相邻的两个输入端的馈电口在第一方向之间的距离D变大。校准单元在使用时，馈电口是要通过转接头与外部射频源连接，且转接头安装于电路板是需要占用一定空间。由于相邻的两个馈电口之间的距离增大，从而为转接头提供了空间，进而方便转接头的拧转。
以上的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种校准单元，用于校准其后端天线的射频入口，其特征在于：
    所述校准单元包括电路板以及设置于所述电路板的功分器及至少两个对称布设于所述功分器的相对两侧并与所述功分器连接的耦合器，且两所述耦合器在第一方向上相对；
    其中，每个所述耦合器包括输入端、耦合端、直通端、隔离端、连接所述耦合端与所述隔离端的第一连接部以及连接所述输入端和所述直通端的第二连接部，所述第二连接部与所述第一连接部平行且沿第二方向延伸，所述第二方向与所述第一方向垂直，在第一方向上所述第一连接部与所述功分器之间的距离小于所述第二连接部与所述功分器之间的距离；
    所述输入端沿所述第一方向朝向所述功分器延伸，用于与外部射频源连接；
    所述耦合端与所述输入端平行并与所述功分器连接；
    所述直通端与所述输入端同向延伸，用于与天线的射频入口连接；
    所述隔离端与所述输入端同向延伸。
  2. 如权利要求1所述的校准单元，其特征在于：所述隔离端通过电阻匹配。
  3. 如权利要求2所述的校准单元，其特征在于：所述功分器包括校准端、第一功分部及第二功分部，其中，第一功分部及第二功分部均与所述校准端以及所述耦合端连接，所述第一功分部和第二功分部对称布设于所述校准端的相对两侧且在所述第一方向上相对。
  4. 如权利要求3所述的校准单元，其特征在于：所述电路板包括依次叠设的加强板、接地层、第一基板、校准单元信号线层、粘合层以及第二基板；
    所述校准单元形成于所述校准单元信号线层。
  5. 如权利要求4所述的校准单元，其特征在于：所述校准单元还包括隔离墙，所述隔离墙布设于所述功分器及所述耦合器的四周。
  6. 如权利要求5所述的校准单元，其特征在于：所述隔离墙包括第一隔离部和第二隔离部，其中，所述第一隔离部围设于所述功分器及所述耦合器的四周；所述第二隔离部设置于所述功分器和耦合器之间并与所述第一隔离部连接。
  7. 如权利要求6所述的校准单元，其特征在于：所述隔离墙还包括第三隔离部，所述第三隔离部设置于所述第一功分部和第二功分部之间，并与所述第二隔离部连接。
  8. 如权利要求5所述的校准单元，其特征在于：所述电路板在所述校准单元的四周开设有多个呈排状设置通孔，所述通孔内填充有导电介质且所述导电介质接地以形成所述隔离墙。
  9. 如权利要求2所述的校准单元，其特征在于：所述输入端设置有馈电口；
    当两个所述校准单元沿所述第一方向布设时，两个相邻的所述馈电口之间的间距至少为20mm。
  10. 一种天线，其特征在于：所述天线包括如权利要求1-9任意一项所述的校准单元。
PCT/CN2019/129393 2019-12-27 2019-12-27 一种校准单元及天线 WO2021128325A1 (zh)

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CN1398124A (zh) * 2001-07-20 2003-02-19 电信科学技术研究院 无线通信***智能天线阵的耦合校准网络及耦合校准方法
US20030151549A1 (en) * 2001-11-22 2003-08-14 Klaus Solbach Active receiving array antenna
CN101005161A (zh) * 2007-01-09 2007-07-25 杨华 用于时分***的超薄智能天线
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CN105356052A (zh) * 2015-11-24 2016-02-24 京信通信技术(广州)有限公司 一种天线校准装置
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CN108808224A (zh) * 2018-06-29 2018-11-13 京信通信***（中国）有限公司 Massive mimo天线
CN110198172A (zh) * 2019-07-05 2019-09-03 深圳市深大唯同科技有限公司 一种阵列天线的校准网络和基站天线

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CN1398124A (zh) * 2001-07-20 2003-02-19 电信科学技术研究院 无线通信***智能天线阵的耦合校准网络及耦合校准方法
US20030151549A1 (en) * 2001-11-22 2003-08-14 Klaus Solbach Active receiving array antenna
CN101005161A (zh) * 2007-01-09 2007-07-25 杨华 用于时分***的超薄智能天线
CN201418074Y (zh) * 2009-04-28 2010-03-03 摩比天线技术（深圳）有限公司 一种宽带校准网络
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CN108808224A (zh) * 2018-06-29 2018-11-13 京信通信***（中国）有限公司 Massive mimo天线
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