WO2021114017A1 - 一种天线单元及基站 - Google Patents

一种天线单元及基站 Download PDF

Info

Publication number
WO2021114017A1
WO2021114017A1 PCT/CN2019/123999 CN2019123999W WO2021114017A1 WO 2021114017 A1 WO2021114017 A1 WO 2021114017A1 CN 2019123999 W CN2019123999 W CN 2019123999W WO 2021114017 A1 WO2021114017 A1 WO 2021114017A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
substrate
radiating
unit
antenna unit
Prior art date
Application number
PCT/CN2019/123999
Other languages
English (en)
French (fr)
Inventor
史大为
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)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 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/123999 priority Critical patent/WO2021114017A1/zh
Publication of WO2021114017A1 publication Critical patent/WO2021114017A1/zh

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Definitions

  • the present invention relates to the field of communication technology, in particular to an antenna unit and a base station.
  • the mainstream communication frequency bands will be 4G and 5G.
  • the base station unit will also use more large-scale array antenna units, which will also be used for antennas.
  • the element element puts forward higher requirements, and the miniaturized antenna element element will be greatly respected.
  • the existing antenna element is to be miniaturized, its radiation effect will become worse and the antenna bandwidth frequency band will be narrow.
  • the purpose of the present invention is to provide an antenna unit and a base station with a small volume, good radiation effect, and wide bandwidth.
  • the present invention provides an antenna unit.
  • the antenna unit includes a first dipole unit with orthogonal polarization, a second dipole unit, and a parasitic unit coupled with the first dipole unit and the second dipole unit;
  • the first vibrator unit includes a first radiating part and a first feeding part for feeding power to the first radiating part, wherein the first radiating part includes a radiating substrate and is arranged on the radiating substrate along a first direction
  • the first radiator and the second radiator on the surface, and the first radiator and the second radiator are spaced apart from each other and arranged symmetrically;
  • the first power feeding part includes a first power feeding substrate and a first ground wire and a first microstrip line provided on the surface of the first power feeding substrate, wherein the first power feeding substrate and the radiating substrate Connected, the first ground wire is electrically connected to the first radiator and the second radiator respectively, and the first microstrip line is respectively coupled to the first radiator and the second radiator;
  • the second vibrator unit includes a second radiating part and a second feeding part that feeds the second radiating part, wherein the second radiating part includes a radiating substrate shared with the first radiating part, along The third radiator and the fourth radiator arranged on the surface of the radiating substrate in the second direction, the third radiator and the fourth radiator are spaced apart from each other and arranged symmetrically, the first direction and the second radiator
  • the directions are respectively the diagonal directions of the square array, and the first direction and the second direction are perpendicular to each other;
  • the second power feeding portion includes a second power feeding substrate, and a second ground wire and a second microstrip line provided on the surface of the second power feeding substrate, wherein the second power feeding substrate and the radiating substrate Connected, the second ground wire is electrically connected to the third radiator and the fourth radiator respectively; the second microstrip line is respectively coupled to the third radiator and the fourth radiator;
  • the first radiator, the second radiator, the third radiator and the fourth radiator are arranged to form a square array
  • the parasitic unit includes four parasitic radiators respectively arranged around the square array.
  • the first radiator, the second radiator, the third radiator and the fourth radiator are arranged on the same surface of the radiating substrate;
  • the first radiator and the second radiator are arranged symmetrically with respect to a first symmetry axis
  • the third radiator and the fourth radiator are arranged symmetrically with each other about a second symmetry axis
  • the first symmetry axis And the second axis of symmetry are perpendicular to each other.
  • each of the parasitic radiators includes a body part, a first branch part and a second branch part, wherein the first branch part and the second branch part are opposite to each other from the body part.
  • the ends are connected, and the first branch part and the second branch part are arranged at an angle with the body part.
  • the body part is arranged parallel to the sides of the square array, and the first branch part and the second branch part are arranged parallel to the two diagonal lines of the square array.
  • the parasitic unit and the first radiator, the second radiator, the third radiator, and the fourth radiator are respectively arranged on two opposite surfaces of the radiating substrate.
  • the first ground wire and the first microstrip wire are respectively arranged on two opposite surfaces of the first feed substrate.
  • the second ground wire and the second microstrip wire are respectively arranged on two opposite surfaces of the second feed substrate.
  • the antenna unit further includes a ground plate, the ground plate includes a ground substrate and a ground plate provided on the surface of the ground substrate, the ground substrate and the end of the feed substrate away from the radiating substrate are connected, the Both the first ground wire and the second ground wire are electrically connected to the ground plate.
  • the ground plate includes a ground substrate and a ground plate provided on the surface of the ground substrate, the ground substrate and the end of the feed substrate away from the radiating substrate are connected, the Both the first ground wire and the second ground wire are electrically connected to the ground plate.
  • a feeding network electrically connected to the first microstrip line and the second microstrip line is provided on the side of the ground substrate close to the radiating substrate.
  • the present invention also provides a base station, which includes a plurality of the aforementioned antenna units.
  • the antenna unit provided by the present invention strengthens the first radiator by providing parasitic elements coupled with the first radiator, the second radiator, the third radiator, and the fourth radiator on the radiating substrate.
  • the radiation effect of the second radiator, the third radiator and the fourth radiator reduces the size of the antenna unit and meets the demand for miniaturization. It is easy to array the antenna unit on the base station, which increases the flexibility of network coverage in the base station.
  • the antenna unit can resonate, thereby broadening the bandwidth of the antenna unit.
  • FIG. 1A is a first-view three-dimensional structure diagram of an antenna unit
  • FIG. 1B is a schematic diagram of a second perspective three-dimensional structure of the antenna unit
  • FIG. 2 is a schematic diagram of a three-dimensional structure of a first dipole unit of an antenna unit
  • FIG. 3 is a schematic diagram of the exploded structure of the first vibrator unit and the parasitic unit
  • FIG. 4 is a schematic diagram of the radiator of the first vibrator unit and the parasitic radiator of the parasitic unit being arranged on the radiating substrate;
  • FIG. 5 is a schematic diagram of a three-dimensional structure of a second dipole unit of the antenna unit
  • FIG. 6 is a schematic diagram of the exploded structure of the second vibrator unit and the parasitic unit
  • FIG. 7 is a schematic diagram of the radiator of the second vibrator unit and the parasitic radiator of the parasitic unit disposed on the radiating substrate;
  • FIG. 8 is a schematic diagram of an exploded structure of a grounding plate provided by an embodiment of the present invention.
  • FIG. 9 is a curve diagram of reflection coefficient of an antenna unit provided by an embodiment of the present invention.
  • the present invention provides an antenna unit 1.
  • the antenna unit 1 includes a ground plate 30, a first dipole unit 10 and a second dipole unit 20 with orthogonal polarization modes, and the first dipole unit 10 and The parasitic unit 40 coupled to the second vibrator unit 20.
  • the ground plate 30 is simultaneously connected to the first vibrator unit 10 and electrically connected to the second vibrator unit 20.
  • the first vibrator unit 10 includes a first radiating portion 11 and a first feeding portion 12 for feeding the first radiating portion 11, and the first radiating portion 11 is connected to the ground plate 30 through the first feeding portion 12 That is, the first power feeding portion 12 is located between the first radiating portion 11 and the ground plate 30.
  • the first radiating portion 11 includes a radiating substrate 111, a first radiator 112 and a second radiator 113 arranged on the surface of the radiating substrate 111 along a first direction.
  • the first radiator 112 and the second radiator 113 are spaced apart from each other, and are electrically connected to the feeding network 50 via the first feeding portion 12.
  • the feeder network 50 may be installed on the ground plate 30, or may be installed independently, which is not limited here.
  • the parasitic unit 40 includes four parasitic radiators 401, and the four parasitic radiators 401 may be arranged on the same surface of the radiating substrate 111, or may be arranged symmetrically on two opposite surfaces of the radiating substrate 111.
  • the four parasitic radiators 401 are arranged on the same surface of the radiating substrate 111.
  • the parasitic unit 40 and the first radiator 112 and the second radiator 113 may be jointly arranged on the same surface of the radiating substrate 111. It may also be that the parasitic unit 40 is arranged on one surface of the radiating substrate 111, and the first radiator 112 and the second radiator 113 are arranged on the opposite surface of the radiating substrate 111.
  • the first radiator 112 and the second radiator 113 are both arranged on the surface of the radiating substrate 111 away from the ground plate 30, and the first radiator 112 and the second radiator 113 are arranged symmetrically with respect to the first symmetry axis L1
  • the parasitic unit 40 is arranged on the surface of the radiating substrate 111 close to the ground plate 30.
  • the shape of the radiating substrate 111 is not limited, and can be set as required. In this embodiment, the shape of the radiating substrate 111 is a polygon.
  • each parasitic radiator 401 includes a body portion 4011, a first branch portion 4012, and two branch portions 4013, wherein the first branch portion 4012 and the second branch portion 4013 are opposite to the body portion 4011.
  • the ends are connected, and the first branch portion 4012 and the second branch portion 4013 and the main body portion 4011 are arranged at an included angle, preferably, the included angle is 45°.
  • the first vibrator unit 10 is coupled with the parasitic unit 40, so that when the first radiator 112 and the second radiator 113 radiate signals, the antenna unit can increase the resonance, thereby achieving the radiation effect of broadening the bandwidth of the antenna unit, and it is incompatible with The overall size formed by the first radiator 112 and the second radiator 113 can be reasonably reduced to meet the requirements of miniaturization.
  • the first power feeder 12 includes a first power feed substrate 121 and a first ground line 122 and a first microstrip line 123 provided on the surface of the first power feed substrate 121.
  • One end of the first feeding substrate 121 is connected to the radiating substrate 111, the other end of the first feeding substrate 121 is connected to the ground plate 30, and the first ground wire 122 is connected to the first radiator 112, the second radiator 113, and the ground plate, respectively.
  • 30 is electrically connected, and the first microstrip line 123 is coupled to the first radiator 112 and the second radiator 113 respectively.
  • a first protrusion 1211 is provided on the first feeding substrate 121 to be snap-connected to the radiation substrate 111.
  • a second protrusion 1212 is provided on one end of the first feeding substrate 121 connected to the ground plate 30.
  • the second protrusion 1212 can be inserted into the ground plate 30 to be connected to the ground plate 30.
  • the first protrusion 1211 and the second protrusion can be understood. There may be one or more of 1212. Preferably, there are at least two first protrusions 1211 and second protrusions 1212.
  • the first ground wire 122 may penetrate the radiating substrate 111 to be electrically connected to the first radiator 112 and the second radiator 113 respectively.
  • the first ground wire 122 includes two and both are disposed on the same surface of the first feeding substrate 121. Among them, one first ground wire 122 is electrically connected to the first radiator 112 and the ground plate 30, and the other A first ground wire 122 is electrically connected to the second radiator 113 and the ground plate 30.
  • first ground wire 122 there may be only one first ground wire 122, and the first ground wire 122 may be electrically connected to the first radiator 112, the second radiator 113, and the ground plate 30 respectively.
  • first ground wires 122 when there are at least two first ground wires 122, they can be respectively provided on two opposite surfaces of the first power feeding substrate 121, or can be provided on the same surface of the first power feeding substrate 121, which is not limited here. .
  • the first microstrip line 123 includes a first power feeding portion 1231 provided at an end of the first power feeding substrate 121 away from the radiation substrate 111, and a first strip line 1232 extending from the first power feeding portion 1231 in a direction close to the radiation substrate 111
  • One end of the first strip line 1232 away from the first power feeding portion 1231 is along a second strip line 1233 extending parallel to the direction of the radiating substrate 111 and a third strip line 1234 connected to an end of the second strip line 1233 away from the first strip line 1232.
  • the third strip line 1234 is provided with multiple bends.
  • the structure of the first microstrip line 123 is not limited to the above-mentioned structure, as long as it can transmit signals.
  • the second vibrator unit 20 includes a second radiating portion 21 and a second feeding portion 22 for feeding the second radiating portion 21, and the second radiating portion 21 is connected to the ground plate 30 through the second feeding portion 22 That is, the second power feeding portion 22 is located between the second radiating portion 21 and the ground plate 30.
  • the second radiating part 21 includes a radiating substrate 111 shared with the first radiating part 11, and a third radiator 211 and a fourth radiator 212 arranged on the radiating substrate 111 along the second direction, wherein ,
  • the third radiator 211 and the fourth radiator 212 are spaced apart and symmetrically arranged, and the first radiator 112, the second radiator 113, the third radiator 211, and the fourth radiator 212 are arranged to form a square array.
  • the direction and the second direction are respectively the diagonal directions of the square array, and the second direction and the first direction are perpendicular to each other.
  • the radiating substrate 111, the third radiator 211, and the fourth radiator 212 are all connected to the second feeder 22, and the third radiator 211 and the fourth radiator 212 are electrically connected to the feeder network 50 through the second feeder 22 , To feed power through the feed network 50.
  • the body portion 4011 of the parasitic radiator 401 and the first radiator 112, the second radiator 113, the third radiator 211, and the fourth radiator 212 are arranged to form a square array.
  • the sides of the parasitic radiator 401 are arranged in parallel, and the first branch portion 4012 and the second branch portion 4013 of the parasitic radiator 401 are arranged parallel to the two diagonal lines of the square array.
  • the second dipole unit 20 is coupled with the parasitic unit 40, so that when the third radiator 211 and the fourth radiator 212 radiate signals, the antenna unit can increase the resonance, thereby achieving the radiation effect of broadening the bandwidth of the antenna unit, and it has the same effect as the first radiator.
  • the overall size formed by the third radiator 211 and the fourth radiator 212 can be reasonably reduced to meet the requirements of miniaturization.
  • the second power feeding portion 22 includes a second power feeding substrate 221 and a second ground line 222 and a second microstrip line 223 provided on the surface of the second power feeding substrate 221.
  • One end of the second feeding substrate 221 is connected to the radiating substrate 111, the other end of the second feeding substrate 221 is connected to the ground plate 30, and the second ground wire 222 is connected to the third radiator 211, the fourth radiator 212, and the ground plate, respectively.
  • 30 is electrically connected, and the second microstrip line 223 is coupled to the third radiator 211 and the fourth radiator 212 respectively.
  • a third protrusion 2211 is provided on the second feeding substrate 221 to be connected to the radiation substrate 111 by snapping connection.
  • a fourth protrusion 2212 is provided on one end of the second feed substrate 221 connected to the ground plate 30.
  • the second protrusion 2212 can be inserted into the ground plate 30 to be connected to the ground plate 30.
  • the third protrusion 2211, the fourth protrusion There may be one or more of 2212.
  • the second ground wire 222 may penetrate the radiating substrate 111 to be electrically connected to the third radiator 211 and the fourth radiator 212 respectively.
  • there are two second ground wires 222 and both of the two second ground wires 222 are provided on the same surface of the second feed substrate 221.
  • one second ground wire 222 is electrically connected to the third radiator 211 and the ground plate 30, and the other second ground wire 222 is electrically connected to the fourth radiator 212 and the ground plate 30.
  • second ground wires 222 when there are at least two second ground wires 222, they can be respectively provided on two opposite surfaces of the second feed substrate 221, or can be provided on the same surface of the second feed substrate 221, which is not limited here. .
  • the second microstrip line 223 includes a second power feeding portion 2231 provided on an end of the second power feeding substrate 221 away from the radiation substrate 111, and a fourth strip line 2232 extending from the second power feeding portion 2231 in a direction close to the radiation substrate 111.
  • An end of the second strip line 2232 away from the second power feeding portion 2231 is along a fifth strip line 2233 extending parallel to the direction of the radiating substrate 111 and a sixth strip line 2234 connected to an end of the fifth strip line 2233 away from the fourth strip line 2232.
  • the sixth belt line 2234 is provided with multiple bends.
  • the structure of the second microstrip line 223 is not limited to the above-mentioned structure, as long as it can transmit signals.
  • the ground plate 30 includes a ground substrate 31 and a ground plate 32.
  • the ground plate 32 is fixed on the surface of the ground substrate 31 away from the radiating substrate 111 for grounding.
  • a connecting hole 311 is opened on the ground substrate 31 for fixed connection with the first power feeding substrate 121 and the second power feeding substrate 221.
  • the second protrusion 1212 on the first feeding substrate 121 and the fourth protrusion 2212 on the second feeding substrate 221 may pass through the connection hole 311 to be fixedly connected to the ground substrate 31.
  • the connection hole 311 is also used to allow the first ground wire 122 and the second ground wire 222 to pass through to be electrically connected to the ground plate 32.
  • the feeding network 50 is arranged on the side of the grounding substrate 31 close to the radiating substrate 111, and the feeding network 50 is electrically connected to the first microstrip line 123 and the second microstrip line 223 so as to pass through the first microstrip line 123 and the second microstrip line 223.
  • the line 123 feeds power to the first vibrator unit 10 and feeds power to the second vibrator unit 20 through the second microstrip line 223.
  • the performance of the above-mentioned antenna unit 1 is shown in FIG. 9. It can be seen from the figure that the antenna unit 1 can cover the frequency band of 1.71-2.69 GHz.
  • the present invention also provides a base station, which includes a plurality of antenna units 1.
  • the antenna unit provided by the present invention strengthens the first radiator by providing parasitic elements coupled with the first radiator, the second radiator, the third radiator, and the fourth radiator on the radiating substrate.
  • the radiation effect of the second radiator, the third radiator and the fourth radiator reduces the size of the antenna unit and meets the demand for miniaturization. It is easy to array the antenna unit on the base station, which increases the flexibility of network coverage in the base station.
  • the antenna unit can resonate, thereby broadening the bandwidth of the antenna unit.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

本发明提供一种天线单元及基站，其中，所述天线单元包括极化方式正交的第一振子单元、第二振子单元以及与第一振子单元和第二振子单元耦合的寄生单元；所述第一振子单元包括第一辐射部和为所述第一辐射部馈电的第一馈电部；所述第一辐射部包括辐射基板、布设于所述辐射基板表面的第一辐射体和第二辐射体；所述第二振子单元包括第二辐射部和为所述第二辐射部馈电的第二馈电部；所述第二辐射部包括与所述第一辐射部共用的辐射基板和沿第二方向布设于所述辐射基板表面的第三辐射体、第四辐射体，其中，第一辐射体、第二辐射体、第三辐射体和第四辐射体排布形成方形阵；寄生单元包括分别设置于所述方形阵四周的四个寄生辐射体。

Description

一种天线单元及基站 技术领域
本发明涉及通讯技术领域，尤其涉及一种天线单元及基站。
 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，基站单元也将更多的采用大规模阵列天线单元，从而也对于天线单元阵子提出了更高要求，小型化的天线单元阵子将会受到极大的推崇，而现有的天线单元想要实现小型化，其辐射效果就会变差、天线带宽频段窄。
因此，有必要提供一种体积小且辐射效果好、带宽频段宽的天线单元以解决上述问题。
 技术问题
本发明的目的在于提供一种体积小且辐射效果好、带宽频段宽的天线单元及基站。
 技术解决方案
本发明提供了一种天线单元所述天线单元包括极化方式正交的第一振子单元、第二振子单元以及与所述第一振子单元和所述第二振子单元耦合的寄生单元；
所述第一振子单元包括第一辐射部和为所述第一辐射部馈电的第一馈电部，其中，所述第一辐射部包括辐射基板、沿第一方向布设于所述辐射基板表面的第一辐射体和第二辐射体，且所述第一辐射体和所述第二辐射体相互间隔且对称设置；
所述第一馈电部包括第一馈电基板和设置于所述第一馈电基板表面的第一地线和第一微带线，其中，所述第一馈电基板与所述辐射基板连接，所述第一地线分别与所述第一辐射体、所述第二辐射体电连接，所述第一微带线分别与所述第一辐射体、所述第二辐射体耦合；
所述第二振子单元包括第二辐射部和为所述第二辐射部馈电的第二馈电部，其中，所述第二辐射部包括与所述第一辐射部共用的辐射基板、沿第二方向布设于所述辐射基板表面的第三辐射体和第四辐射体，所述第三辐射体和所述第四辐射体相互间隔且对称设置，所述第一方向和所述第二方向分别为所述方形阵的对角线方向，且所述第一方向和所述第二方向相互垂直；
所述第二馈电部包括第二馈电基板和设置于所述第二馈电基板表面的第二地线和第二微带线，其中，所述第二馈电基板和所述辐射基板连接，所述第二地线分别与所述第三辐射体、所述第四辐射体电连接;所述第二微带线分别与所述第三辐射体、所述第四辐射体耦合；
所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体排布形成方形阵；
所述寄生单元包括分别设置于所述方形阵四周的四个寄生辐射体。
优选地，所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体设置于所述辐射基板的同一表面；
所述第一辐射体和所述第二辐射体关于第一对称轴相互对称设置，所述第三辐射体和所述第四辐射体关于第二对称轴相互对称设置，所述第一对称轴和所述第二对称轴相互垂直。
优选地，每个所述寄生辐射体包括本体部、第一枝节部及第二枝节部，其中，所述第一枝节部和所述第二枝节部别与所述本体部的相对两端连接，且所述第一枝节部和所述第二枝节部与所述本体部均呈夹角设置。
优选地，所述本体部与所述方形阵的边平行设置，所述第一枝节部和所述第二枝节部别与所述方形阵的两条对角线平行设置。
优选地，所述寄生单元与所述第一辐射体、第二辐射体、第三辐射体、第四辐射体分别设置于所述辐射基板的两个相对表面。
优选地，所述第一地线和所述第一微带线分别设置于所述第一馈电基板的两个相对表面。
优选地，所述第二地线和所述第二微带线分别设置于所述第二馈电基板的两个相对表面。
优选地，所述天线单元还包括接地板，所述接地板包括接地基板和设置于所述接地基板表面的接地片，所述接地基板和所述馈电基板远离辐射基板的一端连接，所述第一地线和所述第二地线均与所述接地片电连接。
优选地，所述接地基板靠近所述辐射基板一侧设置有与所述第一微带线和所述第二微带线电连接的馈电网络。
本发明还提供一种基站，所述基站包括多个前述的天线单元。
 有益效果
与现有技术相比，本发明所提供的天线单元通过在辐射基板上设置与第一辐射体、第二辐射体、第三辐射体和第四辐射体耦合的寄生单元加强了第一辐射体、第二辐射体、第三辐射体和第四辐射体的辐射效果，减小了天线单元的尺寸，符合小型化的需求。易于在基站上阵列设置该天线单元，增加了基站中网络覆盖的灵活性。
 同时，通过设置寄生单元，从而使得天线单元产生谐振，进而达到拓宽天线单元的带宽。
 附图说明
图1A为天线单元的第一视角立体结构示意图；
图1B为天线单元的第二视角立体结构示意图；
图2为天线单元的第一振子单元的立体结构示意图；
图3为第一振子单元的和寄生单元配合的爆炸结构示意图；
图4为第一振子单元的辐射体和寄生单元的寄生辐射体设置于辐射基板的示意图；
图5为天线单元的第二振子单元的立体结构示意图；
图6为第二振子单元的和寄生单元配合的爆炸结构示意图；
图7为第二振子单元的辐射体和寄生单元的寄生辐射体设置于辐射基板的示意图；
图8为本发明实施例提供的接地板的爆炸结构示意图；
图9为本发明实施例提供的天线单元的反射系数曲线图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明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发明，并不用于限定本发明。基于本发明中的实施例，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，都属于本发明保护的范围。
需要说明的是，在本发明中涉及“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，也不在本发明要求的保护范围之内。
请参照图1A-1B，本发明提供一种天线单元1，该天线单元1包括接地板30、极化方式正交的第一振子单元10和第二振子单元20以及与第一振子单元10和第二振子单元20耦合的寄生单元40。其中，接地板30同时和第一振子单元10连接和第二振子单元20电连接。
请参阅图2，第一振子单元10包括第一辐射部11及为第一辐射部11馈电的第一馈电部12，第一辐射部11通过第一馈电部12和接地板30连接，即第一馈电部12位于第一辐射部11和接地板30之间。
请参阅图3-4，具体地，第一辐射部11包括辐射基板111、沿着第一方向布设于辐射基板111表面的第一辐射体112和第二辐射体113。其中，第一辐射体112和第二辐射体113相互间隔设置，并经第一馈电部12与馈电网络50电连接。馈电网络50可以是设置于接地板30，也可以独立设置在此不做限定。
寄生单元40包括四个寄生辐射体401，且四个寄生辐射体401可以设置于辐射基板111的相同表面，也可以是两两对称设置于辐射基板111两个相对表面。
较佳地，四个寄生辐射体401设置于辐射基板111的相同表面。
可以理解，寄生单元40可以与第一辐射体112和第二辐射体113共同布设于辐射基板111的相同表面。也可以是寄生单元40布设于辐射基板111的一个表面，第一辐射体112和第二辐射体113布设于辐射基板111的相对的另一个表面。
较佳地，第一辐射体112和第二辐射体113均设置于辐射基板111远离接地板30的表面上，且第一辐射体112和第二辐射体113关于第一对称轴L1相互对称设置，寄生单元40布设于辐射基板111靠近接地板30的表面上。
辐射基板111的形状不做限定，可根据需要进行设置，在本实施例中，辐射基板111的形状为多边形。
请参阅图4，每个寄生辐射体401包括本体部4011、第一枝节部4012及二枝节部4013，其中，第一枝节部4012和第二枝节部4013别与本体部4011的相对两端连接，且第一枝节部4012和第二枝节部4013与本体部4011均呈夹角设置，较佳地，夹角为45°。
第一振子单元10通过与寄生单元40耦合，从而在第一辐射体112和第二辐射体113辐射信号时，可以使天线单元增加谐振，进而达到拓宽天线单元的带宽的辐射效果，且其与第一辐射体112和第二辐射体113形成的整体尺寸可以合理缩减，符合小型化的需求。
如图3所示，第一馈电部12包括第一馈电基板121和设置于第一馈电基板121表面的第一地线122和第一微带线123。第一馈电基板121的一端和辐射基板111连接，第一馈电基板121的另一端和接地板30连接，第一地线122分别与第一辐射体112、第二辐射体113、接地板30电连接，第一微带线123分别与第一辐射体112、第二辐射体113耦合。
第一馈电基板121上设置第一凸起1211以和辐射基板111卡合连接。第一馈电基板121和接地板30连接的一端上设置第二凸起1212，第二凸起1212可插入接地板30以和接地板30连接，可以理解第一凸起1211和第二凸起1212可以是一个或多个，较佳地，第一凸起1211和第二凸起1212均至少为两个。
第一地线122可以穿透辐射基板111以分别和第一辐射体112、第二辐射体113电连接。本实施例中，第一地线122包括两个且均设置于第一馈电基板121的相同表面，其中，一个第一地线122分别和第一辐射体112、接地板30电连接，另一个第一地线122和第二辐射体113、接地板30电连接。
可以理解，第一地线122可以只有一个，第一地线122分别和第一辐射体112、第二辐射体113、接地板30电连接即可。
还可以理解第一地线122为至少两个时，可以是分别设置于第一馈电基板121的两个相对表面，也可以是设置于第一馈电基板121的相同表面在此不做限定。
第一微带线123包括设于第一馈电基板121远离辐射基板111一端的第一馈电部1231、自第一馈电部1231向靠近辐射基板111方向延伸的第一带线1232、自第一带线1232远离第一馈电部1231的一端沿平行于辐射基板111方向延伸的第二带线1233及与第二带线1233远离第一带线1232一端连接的第三带线1234。其中，第三带线1234设置有多道折弯。
可以理解，第一微带线123的结构不限于上述结构，能传输信号即可。
请参阅图5，第二振子单元20包括第二辐射部21和为第二辐射部21馈电的第二馈电部22，第二辐射部21通过第二馈电部22和接地板30连接，即第二馈电部22位于第二辐射部21和接地板30之间。
请参阅图6-7，第二辐射部21包括与第一辐射部11共用的辐射基板111以及沿着第二方向布设于辐射基板111上的第三辐射体211和第四辐射体212，其中，第三辐射体211和第四辐射体212相互间隔且对称设置，且第一辐射体112、第二辐射体113、第三辐射体211和第四辐射体212排布形成方形阵，第一方向和第二方向分别为方形阵的对角线方向，且第二方向和第一方向相互垂直。
辐射基板111、第三辐射体211、第四辐射体212都和第二馈电部22连接，第三辐射体211、第四辐射体212通过第二馈电部22与馈电网络50电连接，以通过馈电网络50馈电。
如图4所示，在部分实施例中，寄生辐射体401的本体部4011与第一辐射体112、第二辐射体113、第三辐射体211和第四辐射体212排布形成的方形阵的边平行设置，寄生辐射体401的第一枝节部4012和第二枝节部4013别与方形阵的两条对角线平行设置。
第二振子单元20通过与寄生单元40耦合，从而第三辐射体211和第四辐射体212辐射信号时，可以使天线单元增加谐振，进而达到拓宽天线单元的带宽的辐射效果，且其与第三辐射体211和第四辐射体212形成的整体尺寸可以合理缩减，符合小型化的需求。
如图6所示，第二馈电部22包括第二馈电基板221和设置在第二馈电基板221表面的第二地线222和第二微带线223。第二馈电基板221的一端和辐射基板111连接，第二馈电基板221的另一端和接地板30连接，第二地线222分别与第三辐射体211、第四辐射体212、接地板30电连接，第二微带线223分别与第三辐射体211、第四辐射体212耦合。
第二馈电基板221上设置有第三凸起2211以和辐射基板111卡合连接。第二馈电基板221和接地板30连接的一端上设置第四凸起2212，第二凸起2212可插入接地板30以和接地板30连接，其中，第三凸起2211、第四凸起2212可以是一个或多个，较佳地，第三凸起2211、第四凸起2212均至少为两个。
第二地线222可以穿透辐射基板111以分别和第三辐射体211、第四辐射体212电连接。本实施例中，第二地线222包括两个，两个第二地线222均设置第二馈电基板221的相同表面。其中，一个第二地线222分别和第三辐射体211、接地板30电连接，另一个第二地线222和第四辐射体212、接地板30电连接。可以理解，第二地线222可以只有一个，第二地线222分别和第三辐射体211、第四辐射体212、接地板30电连接即可。
还可以理解第二地线222为至少两个时，可以是分别设置于第二馈电基板221的两个相对表面，也可以是设置于第二馈电基板221的相同表面在此不做限定。
第二微带线223包括设于第二馈电基板221远离辐射基板111一端的第二馈电部2231、自第二馈电部2231向靠近辐射基板111方向延伸的第四带线2232、自第二带线2232远离第二馈电部2231的一端沿平行于辐射基板111方向延伸的第五带线2233及与第五带线2233远离第四带线2232一端连接的第六带线2234。其中，第六带线2234设置有多道折弯。
可以理解，第二微带线223的结构不限于上述结构，能传输信号即可。
请参阅图8，接地板30包括接地基板31和接地片32，接地片32固定在接地基板31远离辐射基板111的表面，用于接地。
接地基板31上开设连接孔311，用于和第一馈电基板121、第二馈电基板221固定连接。第一馈电基板121上的第二凸起1212、第二馈电基板221上的第四凸起2212可穿过连接孔311以和接地基板31固定连接。连接孔311还用于供第一地线122和第二地线222穿过以和接地片32电连接。
在部分实施例中，馈电网络50设置于接地基板31靠近辐射基板111一侧，且馈电网络50与第一微带线123和第二微带线223电连接，以通过第一微带线123为第一振子单元10馈电，并通过第二微带线223为第二振子单元20馈电。
上述天线单元1的性能如图9所示，从图中可看出，该天线单元1的可覆盖1.71-2.69GHZ频段。
需要说明的是，以上仅为举例说明，并不对本申请的技术方案构成限定。
本发明还提供一种基站，该基站包括多个天线单元1。
与现有技术相比，本发明所提供的天线单元通过在辐射基板上设置与第一辐射体、第二辐射体、第三辐射体和第四辐射体耦合的寄生单元加强了第一辐射体、第二辐射体、第三辐射体和第四辐射体的辐射效果，减小了天线单元的尺寸，符合小型化的需求。易于在基站上阵列设置该天线单元，增加了基站中网络覆盖的灵活性。
 同时，通过设置寄生单元，从而使得天线单元产生谐振，进而达到拓宽天线单元的带宽。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (10)

  1. 一种天线单元，其特征在于，所述天线单元包括极化方式正交的第一振子单元、第二振子单元以及与所述第一振子单元和所述第二振子单元耦合的寄生单元；
    所述第一振子单元包括第一辐射部和为所述第一辐射部馈电的第一馈电部，其中，所述第一辐射部包括辐射基板、沿第一方向布设于所述辐射基板表面的第一辐射体和第二辐射体，且所述第一辐射体和所述第二辐射体相互间隔且对称设置；
    所述第一馈电部包括第一馈电基板和设置于所述第一馈电基板表面的第一地线和第一微带线，其中，所述第一馈电基板与所述辐射基板连接，所述第一地线分别与所述第一辐射体、所述第二辐射体电连接，所述第一微带线分别与所述第一辐射体、所述第二辐射体耦合；
    所述第二振子单元包括第二辐射部和为所述第二辐射部馈电的第二馈电部，其中，所述第二辐射部包括与所述第一辐射部共用的辐射基板、沿第二方向布设于所述辐射基板表面的第三辐射体和第四辐射体，所述第三辐射体和所述第四辐射体相互间隔且对称设置，所述第一方向和所述第二方向分别为所述方形阵的对角线方向，且所述第一方向和所述第二方向相互垂直；
    所述第二馈电部包括第二馈电基板和设置于所述第二馈电基板表面的第二地线和第二微带线，其中，所述第二馈电基板和所述辐射基板连接，所述第二地线分别与所述第三辐射体、所述第四辐射体电连接;所述第二微带线分别与所述第三辐射体、所述第四辐射体耦合；
    所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体排布形成方形阵；
    所述寄生单元包括分别设置于所述方形阵四周的四个寄生辐射体。
  2. 如权利要求1所述的天线单元，其特征在于：所述第一辐射体、所述第二辐射体、所述第三辐射体和所述第四辐射体设置于所述辐射基板的同一表面；
    所述第一辐射体和所述第二辐射体关于第一对称轴相互对称设置，所述第三辐射体和所述第四辐射体关于第二对称轴相互对称设置，所述第一对称轴和所述第二对称轴相互垂直。
  3. 如权利要求1所述的天线单元，其特征在于：每个所述寄生辐射体包括本体部、第一枝节部及第二枝节部，其中，所述第一枝节部和所述第二枝节部别与所述本体部的相对两端连接，且所述第一枝节部和所述第二枝节部与所述本体部均呈夹角设置。
  4. 如权利要求3所述的天线单元，其特征在于：所述本体部与所述方形阵的边平行设置，所述第一枝节部和所述第二枝节部别与所述方形阵的两条对角线平行设置。
  5. 如权利要求1所述的天线单元，其特征在于：所述寄生单元与所述第一辐射体、第二辐射体、第三辐射体、第四辐射体分别设置于所述辐射基板的两个相对表面。
  6. 如权利要求1所述的天线单元，其特征在于：所述第一地线和所述第一微带线分别设置于所述第一馈电基板的两个相对表面。
  7. 如权利要求1所述的天线单元，其特征在于：所述第二地线和所述第二微带线分别设置于所述第二馈电基板的两个相对表面。
  8. 如权利要求1所述的天线单元，其特征在于：所述天线单元还包括接地板，所述接地板包括接地基板和设置于所述接地基板表面的接地片，所述接地基板和所述馈电基板远离辐射基板的一端连接，所述第一地线和所述第二地线均与所述接地片电连接。
  9. 如权利要求8所述的天线单元，其特征在于：所述接地基板靠近所述辐射基板一侧设置有与所述第一微带线和所述第二微带线电连接的馈电网络。
  10. 一种基站，其特征在于：所述基站包括多个如权利要求1-9任一项所述的天线单元。
PCT/CN2019/123999 2019-12-09 2019-12-09 一种天线单元及基站 WO2021114017A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/123999 WO2021114017A1 (zh) 2019-12-09 2019-12-09 一种天线单元及基站

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/123999 WO2021114017A1 (zh) 2019-12-09 2019-12-09 一种天线单元及基站

Publications (1)

Publication Number Publication Date
WO2021114017A1 true WO2021114017A1 (zh) 2021-06-17

Family

ID=76329283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/123999 WO2021114017A1 (zh) 2019-12-09 2019-12-09 一种天线单元及基站

Country Status (1)

Country Link
WO (1) WO2021114017A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113451757A (zh) * 2021-06-28 2021-09-28 中信科移动通信技术股份有限公司 一种宽频双极化辐射单元
CN113471668A (zh) * 2021-06-30 2021-10-01 中信科移动通信技术股份有限公司 辐射单元及基站天线

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102013559A (zh) * 2010-09-20 2011-04-13 西安电子科技大学 波束扫描阵列天线
CN102437408A (zh) * 2011-08-26 2012-05-02 北京华力创通科技股份有限公司 八角平板型阵列天线
CN103872435A (zh) * 2014-03-26 2014-06-18 广东泰阳通信设备有限公司 一种宽带辐射单元及基站天线
CN106654537A (zh) * 2017-01-10 2017-05-10 江苏省东方世纪网络信息有限公司 天线
US20190081413A1 (en) * 2017-09-08 2019-03-14 Pc-Tel, Inc. BROADBAND LOW-PROFILE DUAL-LINEARLY POLARIZED ANTENNA FOR A OneLTE TWO-IN-ONE PLATFORM

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102013559A (zh) * 2010-09-20 2011-04-13 西安电子科技大学 波束扫描阵列天线
CN102437408A (zh) * 2011-08-26 2012-05-02 北京华力创通科技股份有限公司 八角平板型阵列天线
CN103872435A (zh) * 2014-03-26 2014-06-18 广东泰阳通信设备有限公司 一种宽带辐射单元及基站天线
CN106654537A (zh) * 2017-01-10 2017-05-10 江苏省东方世纪网络信息有限公司 天线
US20190081413A1 (en) * 2017-09-08 2019-03-14 Pc-Tel, Inc. BROADBAND LOW-PROFILE DUAL-LINEARLY POLARIZED ANTENNA FOR A OneLTE TWO-IN-ONE PLATFORM

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113451757A (zh) * 2021-06-28 2021-09-28 中信科移动通信技术股份有限公司 一种宽频双极化辐射单元
CN113451757B (zh) * 2021-06-28 2023-11-14 中信科移动通信技术股份有限公司 一种宽频双极化辐射单元
CN113471668A (zh) * 2021-06-30 2021-10-01 中信科移动通信技术股份有限公司 辐射单元及基站天线
CN113471668B (zh) * 2021-06-30 2022-07-19 中信科移动通信技术股份有限公司 辐射单元及基站天线

Similar Documents

Publication Publication Date Title
US9276323B2 (en) Dual polarization antenna for a mobile communication base station, and multiband antenna system using same
US11482787B2 (en) Antenna and antenna module including the antenna
JP4571196B2 (ja) 偏波ダイバーシチアンテナ
US7425921B2 (en) Broadband antenna system
JPH10150319A (ja) 反射板付ダイポ−ルアンテナ
WO2020134362A1 (zh) 一种天线、天线阵列和基站
US9281566B2 (en) Stacked bow tie array with reflector
KR20110086776A (ko) 다중대역 무지향성 안테나
TWI557993B (zh) 陣列天線及其圓極化天線
US8508415B2 (en) Antenna and electric device having the same
CN111029767A (zh) 一种小型化低剖面基站天线单元
WO2021114017A1 (zh) 一种天线单元及基站
TWI462394B (zh) 多迴圈天線系統及具有該多迴圈天線系統的電子裝置
US20200411966A1 (en) Radiator, antenna and base station
CN110690564A (zh) 双极化对数周期天线、双单元结构天线和天线阵列
CN109713440A (zh) 一种天线单元及阵列天线
CN109103595B (zh) 双向双极化天线
JP2003051708A (ja) アンテナ
TW200417077A (en) Multiband antenna
CN111029727A (zh) 一种天线单元及基站
JP6541556B2 (ja) アンテナ装置
TWI451632B (zh) 高增益迴圈陣列天線系統及電子裝置
JPH0983238A (ja) 多波共用アンテナ装置
WO2020133933A1 (zh) 基站天线及其低频辐射单元
WO2021000139A1 (zh) 基站天线

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19955514

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19955514

Country of ref document: EP

Kind code of ref document: A1