WO2021000141A1 - 天线振子以及阵列天线 - Google Patents

天线振子以及阵列天线 Download PDF

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Publication number
WO2021000141A1
WO2021000141A1 PCT/CN2019/094041 CN2019094041W WO2021000141A1 WO 2021000141 A1 WO2021000141 A1 WO 2021000141A1 CN 2019094041 W CN2019094041 W CN 2019094041W WO 2021000141 A1 WO2021000141 A1 WO 2021000141A1
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WO
WIPO (PCT)
Prior art keywords
feeding
radiating
branch
antenna
stub
Prior art date
Application number
PCT/CN2019/094041
Other languages
English (en)
French (fr)
Inventor
李陆龙
姜华
朱建朋
Original Assignee
瑞声声学科技(深圳)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 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/094041 priority Critical patent/WO2021000141A1/zh
Priority to CN201910606467.3A priority patent/CN110247172A/zh
Priority to US16/996,903 priority patent/US20200412002A1/en
Publication of WO2021000141A1 publication Critical patent/WO2021000141A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • 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
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043—Slotted waveguides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Definitions

  • the present invention relates to the field of antennas, and in particular to an antenna element and an array antenna using the antenna element.
  • antenna elements of base stations are generally manufactured by metal die-casting technology or manufactured by PCB technology.
  • the antenna elements manufactured by the metal die-casting process and the antenna elements manufactured by the PCB process have some shortcomings. Among them, the antenna element manufactured by the metal die-casting process is too heavy. It is conducive to large-scale array assembly; however, there are many vibrator components manufactured by PCB technology and many solder joints, which are not conducive to assembly.
  • One of the objectives of the present invention is to provide an antenna element, which has the advantages of light weight, simple manufacturing, easy assembly and low cost.
  • the second object of the present invention is to provide an array antenna which uses the antenna element described above.
  • An antenna element includes a radiating sheet and a feeding branch.
  • the radiating sheet has a first surface and a second surface opposite to the first surface.
  • the radiating sheet is provided with a penetrating through the first surface and a In the hollow part of the second surface, one end of the feeding branch is connected with the side wall of the hollow part, and the other end extends from the first surface in a direction away from the first surface.
  • the feeding stub is integrally stamped and formed by the profile.
  • the radiation plate has a square shape, the radiation plate includes two diagonal lines that are perpendicular to each other, and the radiation plate forms two sets of vibrators with orthogonal polarization directions along the two diagonal directions. unit.
  • each hollow part there are four hollow parts and four feeder branches, two hollow parts are arranged on each diagonal line, and the side walls of each hollow part are connected One of the feeding stubs.
  • the antenna element further includes a radiating stub, one end of the radiating stub is connected to the end of the oscillator unit, and the other end extends from the first surface in a direction away from the first surface.
  • the radiating sheet, the feeding stub and the radiating stub are integrally stamped and formed from a profile.
  • the distance from the end of the feeding branch away from the first surface to the first surface is greater than the distance from the end of the radiating branch away from the first surface to the first surface .
  • the radiating branch includes a first branch part and a second branch part, and the first branch part bends and extends from the end of the vibrator unit to the side where the first surface is located, The second branch portion is bent and extends from an end of the first branch portion away from the vibrator unit toward the feeding branch.
  • An array antenna includes a feeder board and a plurality of antenna elements as described above.
  • the feeder board is provided with a feeder network, and the feeder stub is electrically connected to the feeder network.
  • the feed network includes a plurality of one-to-three power dividers, and each one-to-three power divider is electrically connected to three of the antenna elements.
  • each of the one-to-three power dividers includes a radio frequency end and three unit circuits branched from the radio frequency end, each of the unit circuits includes a differential pair, and each of the differential The two ends of the pair are electrically connected to the two feeding branches respectively.
  • the embodiment of the present invention is formed by integral stamping and forming of the radiating sheet and the feeding branch from the profile, which is simple to manufacture and can effectively reduce the cost; and the stamped and formed antenna element can have a smaller thickness and light weight. It is conducive to large-scale array formation; in addition, the stamped and formed antenna oscillator has fewer solder joints and is easy to assemble.
  • FIG. 1 is a schematic diagram of the front structure of an antenna element provided by an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of the back of the antenna element provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the front structure of the array antenna provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the first exploded state of the array antenna provided by the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a second explosion state of the array antenna provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of the back of the array antenna provided by an embodiment of the present invention.
  • Fig. 7 is a partial enlarged schematic diagram of A in Fig. 6;
  • FIG. 8 is a schematic diagram of a simulation of standing wave ratio of an array antenna provided by an embodiment of the present invention.
  • an element when an element is referred to as being “fixed on” or “disposed on” another element, the element may be directly on the other element or there may be a centering element at the same time.
  • an element When an element is referred to as being “connected” to another element, it can be directly connected to the other element or an intermediate element may also exist.
  • an antenna element 10 provided by an embodiment of the present invention includes a radiating plate 11 and a feeding branch 12.
  • the radiating plate 11 has a first surface 111 and a second surface 111 opposite to the first surface 111.
  • Surface 112 the radiating sheet 11 is provided with a hollow part 113 penetrating through the first surface 111 and the second surface 112.
  • One end of the feeding branch 12 is connected to the side wall of the hollow part 113, and the other end is away from the first surface 111 from the first surface 111 Extending in the direction of 111, the radiating sheet 11 and the feeding branch 12 are integrally stamped and formed from the profile.
  • the manufacturing is simple and the cost can be effectively reduced; and the stamped and formed antenna element 10 can have a smaller thickness and light weight, which is conducive to large-scale array formation; ,
  • the stamped antenna element 10 has less solder joints and is easy to assemble.
  • the radiating plate 11 is square, the radiating plate 11 includes two diagonal lines L that are perpendicular to each other, and the radiating plate 11 forms two sets of orthogonal polarization directions along the two diagonal directions.
  • the vibrator unit 13 The polarization directions of the two vibrator units 13 respectively correspond to two polarization directions of +45 degrees and -45 degrees.
  • each hollow part 113 there are four hollow parts 113 and four feeding branches 12, two hollow parts 113 are arranged on each diagonal line L at intervals, and the side wall of each hollow part 113 is connected to one Feeding branch 12.
  • the two hollow parts 113 arranged along the same diagonal line L are arranged symmetrically with respect to the midpoint of the radiation sheet 11.
  • the projection profile of the hollow portion 113 in the direction perpendicular to the second surface 112 is a rectangle, and the symmetry line of the hollow portion 113 in the longitudinal direction thereof coincides with the diagonal line L.
  • the length of the feeding stub 12 is the same as the length of the hollow portion 113 in its longitudinal direction, and the profile is punched to form the feeding stub 12 while forming the hollow portion 113.
  • the four feeding stubs 12 can better support the radiation sheet 11.
  • the edge of the hollow portion 113 can generate a capacitance effect, which is beneficial to the expansion of the working frequency band of the antenna element 10 to a higher frequency band.
  • the antenna element 10 further includes a radiating stub 14, one end of the radiating stub 14 is connected to the end of the dipole unit 13, and the other end extends from the first surface 111 in a direction away from the first surface 111.
  • the electric length of the vibrator unit 13 can be extended.
  • the radiating sheet 11, the feeding stub 12 and the radiating stub 14 are integrally stamped and formed from a profile.
  • the distance from the end of the feeding stub 12 away from the first surface 111 to the first surface 111 is greater than the distance from the end of the radiating stub 14 away from the first surface 111 to the first surface 111. That is, when the end of the feeding stub 12 away from the first surface 111 is connected to the feeding board, the radiating stub 14 may be in a suspended state.
  • the radiating branch 14 includes a first branch part 141 and a second branch part 142.
  • the first branch part 141 is bent from the end of the vibrator unit 13 to the side where the first surface 111 is located. Extending, the second branch portion 142 bends and extends from the end of the first branch portion 141 away from the vibrator unit 13 toward the feeding branch 12.
  • an array antenna 100 provided by an embodiment of the present invention includes a feed plate 20 and a plurality of antenna elements 10 as described above.
  • the feed plate 20 includes an insulating plate 21, a feed network 22, and a ground.
  • Layer 23, the insulating board 21 includes a third surface 211 and a fourth surface 212, the feeding network 22 is arranged on the third surface 211 of the insulating board 21, the ground layer 23 is arranged on the fourth surface 212 of the insulating board 21, and the feeding branch 12
  • the end away from the first surface 111 is electrically connected to the feeding network 21.
  • the feed network 21 has a microstrip line structure.
  • the second stub portion 142 of the radiating stub 14 can form a capacitance effect with the ground layer 23, so that the working frequency band of the array antenna 100 is expanded to a lower frequency band, and the frequency band of the array antenna 100 is broadened.
  • the feed network 22 includes a plurality of one-to-three power dividers 221, and each one-to-three power divider 221 is electrically connected to three antenna elements 10.
  • each one-to-three power divider 221 includes a radio frequency terminal 222 and three unit circuits 223 branched from the radio frequency terminal 222.
  • Each unit circuit 223 includes a differential pair 2231, and two ends of each differential pair 2231 They are respectively electrically connected to two feeding branches 12 arranged along the same diagonal line.
  • Each radio frequency end 222 is connected to a coaxial connector 224.
  • the coaxial connector 224 includes a first conductive member 2241 and a second conductive member 2242 arranged coaxially and spaced apart from the first conductive member 2241.
  • the insulating plate 21 is connected to the radio frequency end 222.
  • the position is provided with through holes penetrating through the third surface 211 and the fourth surface 212, the first conductive member 2241 passes through the through hole and is connected to the radio frequency terminal 222, and the second conductive member 2242 is arranged around the inner side wall of the through hole and is connected to the ground layer 23 connection.
  • a plurality of mounting holes 201 are opened on the power feeding board 20, and the end of the power feeding stub 12 away from the radiation sheet 11 passes through the mounting holes 201 and is welded and fixed to the power feeding board 20. The welding position is separated from the ground layer 23.
  • the feeding stub 12 and the feeding board 20 are not limited to the above-mentioned mounting and fixing methods.
  • a pad is provided on the feeding network 22, and the feeding stub 12 and the pad patch can also be fixed. .
  • FIG. 8 shows that the standing wave ratio of the above-mentioned array antenna 100 in the frequency band of 3.4GHZ ⁇ 3.6GHz is less than 1.5, indicating that the antenna element 100 has a good signal transmission and reception effect in the above-mentioned frequency band.
  • the frequency band can cover the above frequency bands and has a wider working frequency band.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

本发明提供了天线振子以及阵列天线，其中，天线振子包括辐射片和馈电枝节，辐射片具有第一表面和与第一表面相背设置的第二表面，辐射片设有贯穿第一表面和所述第二表面的镂空部，馈电枝节的一端与镂空部的侧壁连接、另一端从第一表面往远离第一表面的方向延伸，辐射片和馈电枝节由型材一体冲压成型。本发明提供的天线振子通过设置辐射片和馈电枝节由型材一体冲压成型，制造简单，可以有效降低成本；而且冲压成型的天线振子可以具有较小的厚度，重量轻，有利于大规模阵列组阵；另外,冲压成型的天线振子焊点少，易于组装。

Description

天线振子以及阵列天线 技术领域
本发明涉及天线领域，尤其涉及一种天线振子以及一种采用该天线振子的阵列天线。
 背景技术
作为下一代通信技术，5G影响深远，意义重大，随着通信技术的发展，对于基站天线有了更高的要求，比如宽频带、低剖面、轻重量以及低成本等。以往的基站的天线振子一般是采用金属压铸工艺制造成型或者是采用PCB工艺制造成型。但是，随着5G基站天线振子数量的成倍增加，采用金属压铸工艺制造的天线振子和采用PCB工艺制造的天线振子都存在着一些缺点，其中，采用金属压铸工艺制造的天线振子过重，不利于大规模阵列组阵；而采用PCB工艺制造的振子组件多，焊点多，不利于组装。
因而，有必要提供一种新的天线振子以解决上述的问题。
 技术问题
本发明的目的之一在于提供一种天线振子，其具有重量轻、制造简单、易于组装以及成本低的优点。本发明的目的之二在于提供一种阵列天线，该阵列天线采用如上所述的天线振子。
 技术解决方案
本发明的目的之一采用如下技术方案实现：
一种天线振子，包括辐射片和馈电枝节，所述辐射片具有第一表面和与所述第一表面相背设置的第二表面，所述辐射片设有贯穿所述第一表面和所述第二表面的镂空部，所述馈电枝节的一端与所述镂空部的侧壁连接、另一端从所述第一表面往远离所述第一表面的方向延伸，所述辐射片和所述馈电枝节由型材一体冲压成型。
作为一种改进方式，所述辐射片呈方形，所述辐射片包括两条互为垂直的对角线，所述辐射片沿着两个对角线方向形成两组极化方向正交的振子单元。
作为一种改进方式，所述镂空部和所述馈电枝节均设有四个，每条所述对角线上间隔设置有两个所述镂空部，每个所述镂空部的侧壁连接一个所述馈电枝节。
作为一种改进方式，所述天线振子还包括辐射枝节，所述辐射枝节的一端与所述振子单元的端部连接、另一端从所述第一表面往远离所述第一表面的方向延伸。
作为一种改进方式，所述辐射片、所述馈电枝节以及所述辐射枝节由型材一体冲压成型。
作为一种改进方式，所述馈电枝节远离所述第一表面的端部到所述第一表面的距离大于所述辐射枝节远离所述第一表面的端部到所述第一表面的距离。
作为一种改进方式，所述辐射枝节包括第一枝节部和第二枝节部，所述第一枝节部自所述振子单元的端部往所述第一表面的所在侧弯折延伸，所述第二枝节部自所述第一枝节部远离所述振子单元的端部朝所述馈电枝节的方向弯折延伸。
本发明的目的之二采用如下技术方案实现：
一种阵列天线，包括馈电板以及若干个如上所述的天线振子，所述馈电板上设有馈电网络，所述馈电枝节与所述馈电网络电性连接。
作为一种改进方式，所述馈电网络包括若干个一分三功分器，每个一分三功分器电性连接三个所述天线振子。
作为一种改进方式，每个所述一分三功分器包括一个射频端和由所述射频端分支延伸的三个单元电路，每个所述单元电路包括一个差分对，每个所述差分对的两端分别电性连接两个所述馈电枝节。
 有益效果
本发明实施方式相对于现有技术而言，通过设置辐射片和馈电枝节由型材一体冲压成型，制造简单，可以有效降低成本；而且冲压成型的天线振子可以具有较小的厚度，重量轻，有利于大规模阵列组阵；另外冲压成型的天线振子焊点少，易于组装。
 附图说明
图1为本发明实施例提供的天线振子的正面的结构示意图；
图2为本发明实施例提供的天线振子的背面的结构示意图；
图3为本发明实施例提供的阵列天线的正面的结构示意图；
图4为本发明实施例提供的阵列天线的第一种爆炸状态示意图；
图5为本发明实施例提供的阵列天线的第二种爆炸状态示意图；
图6为本发明实施例提供的阵列天线的背面的结构示意图；
图7为图6中A处局部放大示意图；
图8为本发明实施例提供的阵列天线的驻波比仿真示意图。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
需要说明的是，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
请参阅图1和图2，本发明实施例提供的一种天线振子10，包括辐射片11和馈电枝节12，辐射片11具有第一表面111和与第一表面111相背设置的第二表面112，辐射片11设有贯穿第一表面111和第二表面112的镂空部113，馈电枝节12的一端与镂空部113的侧壁连接、另一端从第一表面111往远离第一表面111的方向延伸，辐射片11和馈电枝节12由型材一体冲压成型。
通过设置辐射片11和馈电枝节12由型材一体冲压成型，制造简单，可以有效降低成本；而且冲压成型的天线振子10可以具有较小的厚度，重量轻，有利于大规模阵列组阵；另外,冲压成型的天线振子10焊点少，易于组装。
作为本实施例的一种改进方式，辐射片11呈方形，辐射片11包括两条互为垂直的对角线L，辐射片11沿着两个对角线方向形成两组极化方向正交的振子单元13。两个振子单元13的极化方向分别对应+45度和-45度两个极化方向。
作为本实施例的一种改进方式，镂空部113和馈电枝节12均设有四个，每条对角线L上间隔设置有两个镂空部113，每个镂空部113的侧壁连接一个馈电枝节12。优选地，沿同一条对角线L设置的两个镂空部113相对于辐射片11的中点呈对称设置。优选地，镂空部113在垂直于第二表面112方向上的投影轮廓为长方形，镂空部113在其长度方向上的对称线与对角线L重合。优选地，馈电枝节12的长度与镂空部113在其长度方向上的长度一致，型材在冲压形成馈电枝节12的同时形成镂空部113。通过设置四个馈电枝节12，四个馈电枝节12可以对辐射片11起到较好的支撑作用。通过设置镂空部113，镂空部113的边缘可以产生电容效应，从而有利于天线振子10的工作频段向更高的频段扩展。
作为本实施例的一种改进方式，天线振子10还包括辐射枝节14，辐射枝节14的一端与振子单元13的端部连接、另一端从第一表面111往远离第一表面111的方向延伸。通过设置辐射枝节14，可以起到延长振子单元13电长度的作用。
作为本实施例的一种改进方式，辐射片11、馈电枝节12以及辐射枝节14由型材一体冲压成型。
作为本实施例的一种改进方式，馈电枝节12远离第一表面111的端部到第一表面111的距离大于辐射枝节14远离第一表面111的端部到第一表面111的距离。也即馈电枝节12远离第一表面111的端部与馈电板连接时，辐射枝节14可以为悬空状态。
作为本实施例的一种改进方式，辐射枝节14包括第一枝节部141和第二枝节部142，第一枝节部141自振子单元13的端部往第一表面111的所在侧弯折延伸，第二枝节部142自第一枝节部141远离振子单元13的端部朝馈电枝节12的方向弯折延伸。
请参阅图3-7，本发明实施例提供的一种阵列天线100，包括馈电板20以及若干个如上所述的天线振子10，馈电板20包括绝缘板21、馈电网络22以及接地层23，绝缘板21包括第三表面211和第四表面212，馈电网络22设置于绝缘板21的第三表面211，接地层23设置于绝缘板21的第四表面212，馈电枝节12远离第一表面111的一端与馈电网络21电性连接。优选地，馈电网络21为微带线结构。
需要说明的是，辐射枝节14的第二枝节部142可以与接地层23之间形成电容效应，使得阵列天线100的工作频带往更低频段拓展，拓宽了阵列天线100的频带。
作为本实施例的一种改进方式，馈电网络22包括若干个一分三功分器221，每个一分三功分器221电性连接三个天线振子10。具体地，每个一分三功分器221包括一个射频端222和由射频端222分支延伸的三个单元电路223，每个单元电路223包括一个差分对2231，每个差分对2231的两端分别与沿同一对角线设置的两个馈电枝节12电性连接。
每个射频端222连接一个同轴连接器224，同轴连接器224包括第一导电件2241和与第一导电件2241同轴间隔设置的第二导电件2242，绝缘板21在射频端222的位置开设有贯穿第三表面211和第四表面212的通孔，第一导电件2241穿过通孔并与射频端222连接，第二导电件2242环设在通孔的内侧壁并与接地层23连接。
作为本实施例的一种改进方式，馈电板20上开设有若干个安装孔201，馈电枝节12之远离辐射片11的一端穿过安装孔201并与馈电板20焊接固定。焊接位与接地层23隔离设置。需要说明的是，馈电枝节12与馈电板20不局限于采用上述的安装固定方式，例如，在馈电网络22上设有焊盘，馈电枝节12与焊盘贴片固定也是可以的。
请参阅图8，图8显示的是上述的阵列天线100在3.4GHZ～3.6GHz的频带内的驻波比小于1.5，表示该天线振子100在上述频带内具有较好的信号收发效果，其工作频段可覆盖上述频带，具有较宽的工作频段。
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. 一种天线振子，其特征在于，包括辐射片和馈电枝节，所述辐射片具有第一表面和与所述第一表面相背设置的第二表面，所述辐射片设有贯穿所述第一表面和所述第二表面的镂空部，所述馈电枝节的一端与所述镂空部的侧壁连接、另一端从所述第一表面往远离所述第一表面的方向延伸，所述辐射片和所述馈电枝节由型材一体冲压成型。
  2. 根据权利要求1所述的天线振子，其特征在于，所述辐射片呈方形，所述辐射片包括两条互为垂直的对角线，所述辐射片沿着两个对角线方向形成两组极化方向正交的振子单元。
  3. 根据权利要求2所述的天线振子，其特征在于，所述镂空部和所述馈电枝节均设有四个，每条所述对角线上间隔设置有两个所述镂空部，每个所述镂空部的侧壁连接一个所述馈电枝节。
  4. 根据权利要求2所述的天线振子，其特征在于，所述天线振子还包括辐射枝节，所述辐射枝节的一端与所述振子单元的端部连接、另一端从所述第一表面往远离所述第一表面的方向延伸。
  5. 根据权利要求4所述的天线振子，其特征在于，所述辐射片、所述馈电枝节以及所述辐射枝节由型材一体冲压成型。
  6. 根据权利要求4所述的天线振子，其特征在于，所述馈电枝节远离所述第一表面的端部到所述第一表面的距离大于所述辐射枝节远离所述第一表面的端部到所述第一表面的距离。
  7. 根据权利要求4所述的天线振子，其特征在于，所述辐射枝节包括第一枝节部和第二枝节部，所述第一枝节部自所述振子单元的端部往所述第一表面的所在侧弯折延伸，所述第二枝节部自所述第一枝节部远离所述振子单元的端部朝所述馈电枝节的方向弯折延伸。
  8. 一种阵列天线，其特征在于，包括馈电板以及若干个如权利要求1-7任一项所述的天线振子，所述馈电板上设有馈电网络，所述馈电枝节与所述馈电网络电性连接。
  9. 根据权利要求8所述的阵列天线，其特征在于，所述馈电网络包括若干个一分三功分器，每个一分三功分器电性连接三个所述天线振子。
  10. 根据权利要求9所述的阵列天线，其特征在于，每个所述一分三功分器包括一个射频端和由所述射频端分支延伸的三个单元电路，每个所述单元电路包括一个差分对，每个所述差分对的两端分别电性连接两个所述馈电枝节。
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