WO2013177752A1 - 双极化天线辐射单元及基站天线 - Google Patents
双极化天线辐射单元及基站天线 Download PDFInfo
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- WO2013177752A1 WO2013177752A1 PCT/CN2012/076213 CN2012076213W WO2013177752A1 WO 2013177752 A1 WO2013177752 A1 WO 2013177752A1 CN 2012076213 W CN2012076213 W CN 2012076213W WO 2013177752 A1 WO2013177752 A1 WO 2013177752A1
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- arm
- vibrator
- dual
- feeding
- polarized antenna
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Classifications
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- 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
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/001—Crossed polarisation dual antennas
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a dual-polarized antenna radiating unit and a base station antenna.
- Dual-polarized antenna radiating elements are widely used in base station antennas. Dual-polarized antenna radiating elements are often fed by coaxial cable feeds. Although balun can be used to ensure balanced feeding, the balun size is frequency dependent. In the case where the balun size does not change, it is difficult to ensure the symmetry of the radiation pattern over a wide bandwidth.
- An embodiment of the present invention provides a dual-polarized antenna radiating unit, where the dual-polarized antenna radiating unit includes four radiators and a connecting portion, where
- the four radiators are arranged in pairs in a cross shape, and the four radiators form a radiation surface.
- One end of each of the radiators is connected to the connecting portion, and the other end extends in a direction away from the connecting portion. ;
- Each of the radiators includes a first radiating arm and a second radiating arm, the first radiating arm and the second radiating arm being asymmetrical.
- a base station antenna including a feed network, a signal input port, including at least one of the above dual-polarized antenna radiating elements, and the feeding network and the dual-polarized antenna radiating unit And a connection, configured to receive a signal from the base station through the signal input port, and feed the dual-polarized antenna radiating unit, wherein the dual-polarized antenna radiating unit is configured to radiate the signal.
- the new resonant frequency band is increased by the asymmetry of the radiating arm, thereby widening the width of the resonant frequency band, so that the antenna radiating element can adapt to a wider resonant frequency band.
- FIG. 1 is a schematic diagram of a first embodiment of a dual polarized antenna radiating element provided by the present invention
- FIG. 2 is a schematic diagram of a first embodiment of a dual polarized antenna radiating element provided by the present invention
- Figure 3 is a schematic illustration of a first embodiment of a dual polarized antenna radiating element provided by the present invention.
- the new resonant frequency band is increased by the asymmetry of the vibrator arms, thereby widening the width of the resonant frequency band, so that the radiator can adapt to a wider resonant frequency band.
- an embodiment of the present invention provides a dual-polarized antenna radiating unit 100.
- the dual-polarized antenna radiating unit 100 includes four radiating bodies 10 and a connecting portion 20.
- the four radiators 10 are arranged in a cross shape in a cross shape to form a radiating surface, and the four radiators 10 end are connected to the connecting portion 20, and the other end is extended in a direction away from the connecting portion 20.
- the four radiators 10 may be centrally symmetric to form a planar land-shaped structure.
- the connecting portion 20 may be in a ring shape.
- the radiator 10 may have a rectangular shape. Of course, in other embodiments, the radiator 10 may also have other shapes such as a circle, a square, and the like. In this embodiment, the four radiators form a radiating surface, and the four radiators may be centrally symmetric but not axisymmetric on the radiating surface.
- the radiator 10 includes a first radiating arm 11 and a second radiating arm 12, the first radiating arm and the second radiating arm being asymmetrical.
- the first radiating arm 11 includes a first feeding arm 11a and a first vibrator arm lib, and the first feeding arm 11a is connected to the connecting portion 20.
- the first vibrator arm lib extends perpendicular to the first feed arm 11a to the second radiating arm 12.
- the first vibrator arm lib and the first feed arm 11a form an L-shape, and are two rectangular sides of a rectangle formed by the radiator 10.
- the second radiating arm 12 includes a second feeding arm 12a, a second vibrator arm 12b, and a first bent portion 12c.
- the second feeding arm 12a is connected to the connecting portion 20.
- the first feed arm 11a and the second feed arm 12a of two adjacent radiators 10 may be parallel to each other.
- the second feeding arm 12a is perpendicular to the first feeding arm 11a
- the second vibrator arm 12b is perpendicular to the second feeding arm 12a
- the second vibrator arm 12b is directed to the first vibrator
- the arm lib extends
- the second vibrator arm 12b and the second feed arm 12a form an L-shape
- the radiator 10 The other two right-angled sides of the formed rectangle.
- the first bent portion 12c is coupled to the second vibrator arm 12b and extends toward the first feed arm 11a, and may be parallel to the second feed arm 12a.
- the first radiating arm 11 and the second radiating arm 12 of the radiator 10 are asymmetric, so that the four radiators 10 can be centrally symmetric, but not axisymmetric.
- the dual-polarized antenna radiating element is both axisymmetric and centrally symmetric, so the covered resonant frequency band is single, and since the balun size is frequency dependent, the barron size is constant. It is difficult to adapt to a wider resonant frequency band.
- the two vibrator arms of the radiator are asymmetrical, so that the resonant frequency band covered by the radiator is changed to increase the new resonant frequency band and widen the width of the resonant frequency band, so that the radiator can adapt to a wider resonant frequency band.
- the increased resonant frequency band may be continuous with the original resonant frequency band or may be discontinuous.
- first bending portion 12c of the second radiating arm 12 may also extend in other directions, or may be designed into other shapes such as a circular arc shape, and the first vibrator arm 11a and the second vibrator arm 12b may also be It is other shapes such as a circular arc, but it is guaranteed not to be axisymmetric.
- the dual-polarized antenna radiating unit 200 is substantially the same as the dual-polarized antenna radiating unit 100 provided in the previous embodiment, and the dual-polarized antenna radiating unit 200 includes four The radiator 11 and the connecting portion, the first radiating arm 111 includes a first feeding arm 111a and a first vibrator arm 111b, and the second radiating arm 112 includes a second feeding arm 112a, a second vibrator arm 112b, and a a bent portion 112c is different in that the second vibrator arm 112 further includes a second bent portion 112d, and the second bent portion 112d is connected to the first bent portion 112c and the second connecting portion of the second radiating arm 112.
- a first vibrator arm 111b of the radiating arm 111 is substantially the same as the dual-polarized antenna radiating unit 100 provided in the previous embodiment, and the dual-polarized antenna radiating unit 200 includes four The radiator 11 and the connecting portion, the first radiating arm 111 includes a first feeding arm 111a and a first vibrator arm 111
- the embodiment is connected to the first vibrator arm by adding a second bending portion to each radiator second arm portion, so that the two radiating arms of each radiator are asymmetric, so that the resonant frequency band covered by the radiator changes.
- the radiator can adapt to a wider resonant frequency band.
- the increased resonant frequency band may be continuous with the original resonant frequency band or may be discontinuous.
- another embodiment of the present invention provides a dual-polarized antenna radiating unit 300, which includes four radiators 210 and a connecting portion 220.
- the four radiating bodies 210 are arranged in two pairs. Arrange to form a radiating surface.
- the four radiators 210 are connected to the connecting portion 220 and the other end extends away from the connecting portion 220.
- the radiator 210 includes a first radiating arm 211 and a second radiating arm 212.
- the first radiating arm 211 includes a first feeding arm 211a and a first vibrator arm 211b
- the second radiating arm 212 includes a second feeding arm 212a and a second vibrator arm 212b, and the first vibrator arm 211b and the second
- the vibrator arm 212b is asymmetrical, and the four sets of first vibrator arms 211b It is surrounded by a square with the second vibrator arm 212b.
- the four radiators form a radiating surface, and the four radiators may be centrally symmetric but not axisymmetric.
- the connecting portion is located in a first plane, and the first vibrator arm 211b and the second vibrator arm 212b of the four radiating units 210 are located in a second plane parallel to the first plane, and the dual polarized antenna radiating unit 300
- the first feeding arm 211a and the second feeding arm 212a are connected to the first vibrator arm 211b and the second vibrator arm 212b, respectively, obliquely to the first plane.
- the first feeding arm 211a of the dual-polarized antenna radiating unit 300 is connected between the first vibrator arm 211b and the connecting portion 220, and the second feeding arm 212a is connected to the second Between the vibrator arm 212b and the connecting portion 220, the plurality of sets of the first feeding arm 211a and the second feeding arm 212a form a cross-conical structure.
- the connecting portion 220 may be annular or square.
- the radiator 210 may be trapezoidal or circular or elliptical.
- the first feed arm 211a is end-connected to the connecting portion 220, and the other end extends in a direction away from the connecting portion 220 along a rib-shaped rib.
- the first vibrator arm 211b is end-connected to the first feed arm 211a, and the other end extends along a decrim-shaped bottom edge away from the first feed arm 211a.
- the end 211c of the first vibrator arm 211b is bent perpendicular to the first vibrator arm 211b and extends toward a plane in which the connecting portion 220 is located.
- the first feed arm 211a and the second feed arm 212a of two adjacent radiators 210 are side by side.
- the second feed arm 212a is end-connected to the connecting portion 220, and the other end extends in a direction away from the connecting portion 220 along a rib-shaped rib.
- the second vibrator arm 212b is end-connected to the second feed arm 212a, and the other end extends in a direction away from the second feed arm 212a along a bottom edge of the cross-conical shape.
- the end 212c of the second vibrator arm 212b is bent perpendicular to the second vibrator arm 212b and extends toward a plane in which the connecting portion 220 is located, and has an extended length greater than an extension of the end 211c of the first vibrator arm 211b. length.
- the end 211 c of the first vibrator arm 21 lb and the end 212 c of the second vibrator arm 212 b may also extend in other directions, or be designed to be curved or wavy, or The intermediate portion of the first vibrator arm 211b and the second vibrator arm 212b is deformed, or the portion where the first feed arm 211a and the second feed arm 212a are connected is deformed to ensure the four radiators.
- 210 is not axisymmetric.
- the new resonant frequency band is increased by the asymmetry of the length of the first vibrator arm and the length of the second vibrator arm, thereby widening the width of the resonant frequency band, so that the radiator can adapt to a wider resonant frequency band.
- the new resonant frequency band is also possible to increase the new resonant frequency band by widening the thickness of the first vibrator arm and the second vibrator arm, and widen the width of the resonant frequency band, thereby enabling the radiator to adapt to a wider resonance.
- Frequency band is added by the axis asymmetry of the vibrator arm, thereby widening the width of the resonant frequency band, so that the radiator can adapt to a wider resonant frequency band.
- the embodiment of the present invention further provides a base station antenna, including a feed network, a signal input port, and the like, and at least one dual-polarized antenna radiating unit in any of the above embodiments.
- the feed network is connected to the dual-polarized antenna radiating unit, configured to receive a signal from a base station through an input port, and feed a dual-polarized antenna radiating unit, and the dual-polarized antenna radiating unit is configured to transmit the signal Radiation out.
- the new resonant frequency band is added by the axis asymmetry of the dual-polarized antenna radiating unit vibrator arm, thereby widening the width of the resonant frequency band, so that the base station antenna can adapt to a wider resonant frequency band.
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Abstract
本发明实施例公开了一种双极化天线辐射单元,所述双极化天线辐射单元包括四个辐射体和一个连接部,其中,所述四个辐射体两两对置按十字形排列,所述四个辐射体形成一个辐射面,每个所述辐射体一端连接于所述连接部,另一端沿远离所述连接部的方向延伸;每个所述辐射体包括第一辐射臂和第二辐射臂,所述第一辐射臂和第二辐射臂不对称。本发明实施例通过辐射臂的不对称来增加新的谐振频段,从而展宽谐振频段的宽度,使得天线辐射单元能够适应更宽的谐振频段。
Description
双极化天线辐射单元及基站天线 技术领域 本发明涉及通信技术领域, 尤其涉及一种双极化天线辐射单元及基站天线。 背景技术 双极化天线辐射单元在基站天线中广泛应用, 双极化天线辐射单元往往用同轴电缆 进线馈电, 尽管可以用巴伦来保证平衡馈电, 但巴伦尺寸是与频率相关的, 在巴伦尺寸 不改变的情况下, 难以在较宽带宽内保证辐射方向图的对称。 发明内容 本发明实施例一方面提供了一种双极化天线辐射单元, 所述双极化天线辐射单元包 括四个辐射体和一个连接部, 其中,
所述四个辐射体两两对置按十字形排列, 所述四个辐射体形成一个辐射面每个所述 辐射体一端连接于所述连接部, 另一端沿远离所述连接部的方向延伸;
每个所述辐射体包括第一辐射臂和第二辐射臂, 所述第一辐射臂和第二辐射臂不对 称。
本发明实施例另一方面提供了一种基站天线, 包括馈电网络、 信号输入端口, 包括 至少一个上述的双极化天线辐射单元; 所述馈电网络与所述双极化天线辐射单元相连接, 用于通过所述信号输入端口接收 来自基站的信号, 并对所述双极化天线辐射单元馈电, 所述双极化天线辐射单元用于将 所述信号辐射出去。
在本发明实施例中, 通过辐射臂的不对称来增加新的谐振频段, 从而展宽谐振频段 的宽度, 使得天线辐射单元能够适应更宽的谐振频段。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施例或现有 技术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本 发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还
可以根据这些附图获得其他的附图。
图 1是本发明提供的双极化天线辐射单元的第 实施例的示意图;
图 2是本发明提供的双极化天线辐射单元的第 实施例的示意图;
图 3是本发明提供的双极化天线辐射单元的第 实施例的示意图。
具体实施方式 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整 地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基 于本发明中的实施例,本领域普通技术人员在没有作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。
在本发明实施例中, 通过振子臂的不对称来增加新的谐振频段, 从而展宽谐振频段 的宽度, 使得辐射体能够适应更宽的谐振频段。
如图 1所示, 本发明实施例提供了一种双极化天线辐射单元 100, 所述双极化天线 辐射单元 100包括四个辐射体 10及连接部 20。所述四个辐射体 10两两对置按十字形排 列, 形成一个辐射面, 所述四个辐射体 10—端连接于所述连接部 20, 另一端沿远离所 述连接部 20的方向延伸, 所述四个辐射体 10可以中心对称形成平面的田字形结构。 所 述连接部 20可以呈环形。 所述辐射体 10可以呈矩形。 当然, 在其他实施方式中, 所述 辐射体 10也可以是圆形、 方形等其它形状。 本实施例中, 四个辐射体形成一个辐射面, 四个辐射体在所述辐射面上可以中心对称但非轴对称。
所述辐射体 10包括第一辐射臂 11及第二辐射臂 12,所述第一辐射臂和第二辐射臂 不对称。 所述第一辐射臂 11包括第一馈电臂 11a及第一振子臂 lib, 第一馈电臂 11a与 连接部 20相连接。 所述第一振子臂 lib垂直于所述第一馈电臂 11a, 向所述第二辐射臂 12延伸。 所述第一振子臂 lib与所述第一馈电臂 11a组成 L型, 为所述辐射体 10形成 的矩形的两个直角边。所述第二辐射臂 12包括第二馈电臂 12a、第二振子臂 12b以及第 一弯折部 12c, 第二馈电臂 12a与连接部 20相连接。 两个相邻的辐射体 10的第一馈电 臂 11a及第二馈电臂 12a可以相互平行。所述第二馈电臂 12a垂直于所述第一馈电臂 11a, 所述第二振子臂 12b垂直于所述第二馈电臂 12a, 所述第二振子臂 12b向所述第一振子 臂 lib延伸, 所述第二振子臂 12b与所述第二馈电臂 12a组成 L型, 为所述辐射体 10
形成的矩形的另外两个直角边。 所述第一弯折部 12c与第二振子臂 12b连接并向所述第 一馈电臂 11a延伸, 可以与所述第二馈电臂 12a平行。 本实施例中, 辐射体 10第一辐 射臂 11及第二辐射臂 12不对称, 使得所述四个辐射体 10可以中心对称, 但不是轴对 称。
现有技术中, 双极化天线辐射单元由于既是轴对称的, 又是中心对称, 所以覆盖的 谐振频段单一, 而由于巴伦尺寸是与频率相关的, 所以在巴伦尺寸不变的情况下, 很难 适应于更宽的谐振频段。 而本实施方式中通过辐射体的两振子臂不对称, 从而使得辐射 体覆盖的谐振频段发生改变, 以增加新的谐振频段, 展宽谐振频段的宽度, 使得辐射体 能够适应更宽的谐振频段。 当然, 增加的谐振频段可以与原来的谐振频段连续, 也可以 不连续。
可选的, 所述第二辐射臂 12的第一弯折部 12c也可以向其他方向延伸, 或设计成 圆弧形等其它形状,所述第一振子臂 11a和第二振子臂 12b也可以是圆弧形等其它形状, 但要保证不是轴对称。
如图 2所示,本发明另一实施例提供的双极化天线辐射单元 200与上一实施例提供 的所述双极化天线辐射单元 100基本相同,双极化天线辐射单元 200包括四个辐射体 11 及连接部, 所述第一辐射臂 111 包括第一馈电臂 111a及第一振子臂 111b, 所述第二辐 射臂 112包括第二馈电臂 112a、 第二振子臂 112b以及第一弯折部 112c, 其不同之处在 于, 第二振子臂 112还包括第二弯折部 112d, 所述第二弯折部 112d连接连接第二辐射 臂 112的第一弯折部 112c与第一辐射臂 111的第一振子臂 l l lb。
本实施例通过在每个辐射体第二振子臂增加第二弯折部连接到所述第一振子臂上, 使得各辐射体的两个辐射臂不对称从而使得辐射体覆盖的谐振频段发生改变,以增加新 的谐振频段, 展宽谐振频段的宽度, 使得辐射体能够适应更宽的谐振频段。 当然, 增加 的谐振频段可以与原来的谐振频段连续, 也可以不连续。
如图 3所示, 本发明另一实施例提供了一种双极化天线辐射单元 300, 包括四个辐 射体 210和一个连接部 220, 所述四个辐射体 210两两对置按十字形排列形成一个辐射 面。 所述四个辐射体 210—端连接于连接部 220, 另一端沿远离所述连接部 220的方向 延伸, 所述辐射体 210包括第一辐射臂 211及第二辐射臂 212。 所述第一辐射臂 211包 括第一馈电臂 211a及第一振子臂 211b,所述第二辐射臂 212包括第二馈电臂 212a及第 二振子臂 212b,第一振子臂 211b与第二振子臂 212b不对称,所述四组第一振子臂 211b
与第二振子臂 212b 围成一个正方形。 本实施例中, 四个辐射体形成一个辐射面, 四个 辐射体可以中心对称但非轴对称。
所述连接部位于第一平面, 所述四个辐射单元 210的第一振子臂 211b及第二振子 臂 212b位于平行于所述第一平面的第二平面, 所述双极化天线辐射单元 300的第一馈 电臂 211a及第二馈电臂 212a倾斜于所述第一平面分别连接所述第一振子臂 211b和第 二振子臂 212b。 即, 所述双极化天线辐射单元 300的第一馈电臂 211a连接于所述第一 振子臂 211b及所述连接部 220之间,所述第二馈电臂 212a连接于所述第二振子臂 212b 及所述连接部 220之间, 所述多组第一馈电臂 211a及第二馈电臂 212a形成十字锥形结 构。 所述连接部 220可以呈环形或方形。
当然, 在其他实施方式中, 所述辐射体 210可以呈梯形或者圆形或者椭圆形。 所述 第一馈电臂 211a—端连接于所述连接部 220,另一端沿十字锥形的棱朝远离所述连接部 220的方向延伸。 所述第一振子臂 211b—端连接于所述第一馈电臂 211a, 另一端沿十 字锥形的底边朝远离所述第一馈电臂 211a的方向延伸。 所述第一振子臂 211b 的末端 211c垂直于所述第一振子臂 211b弯折, 且向所述连接部 220所在的平面延伸。
两个相邻的辐射体 210的第一馈电臂 211a及第二馈电臂 212a并排。 所述第二馈电 臂 212a—端连接于所述连接部 220,另一端沿十字锥形的棱朝远离所述连接部 220的方 向延伸。 所述第二振子臂 212b—端连接于所述第二馈电臂 212a, 另一端沿十字锥形的 底边朝远离所述第二馈电臂 212a的方向延伸。 所述第二振子臂 212b的末端 212c垂直 于所述第二振子臂 212b弯折, 且向所述连接部 220所在的平面延伸, 且延伸长度大于 所述第一振子臂 211b的末端 211c的延伸长度。
当然,在其他实施方式中,所述第一振子臂 21 lb的末端 211 c和所述第二振子臂 212b 的末端 212c也可以向其他方向延伸,或设计成弧形或波浪形,或在所述第一振子臂 211b 及第二振子臂 212b的中间部分进行变形, 或在所述第一馈电臂 211a与所述第二馈电臂 212a连接的部分进行变形, 保证所述四个辐射体 210不是轴对称即可。
本实施方式中,通过所述第一振子臂的长度和所述第二振子臂的长度不对称来增加 新的谐振频段, 从而展宽谐振频段的宽度, 使得辐射体能够适应更宽的谐振频段。
另外, 在其他实施方式中, 还可以通过改变所述第一振子臂和所述第二振子臂的粗 细来增加新的谐振频段, 展宽谐振频段的宽度, 从而使得辐射体能够适应更宽的谐振频 段。
在本发明实施例中, 通过振子臂的轴不对称来增加新的谐振频段, 从而展宽谐振频 段的宽度, 使得辐射体能够适应更宽的谐振频段。
本发明实施例还提供了一种基站天线, 包括馈电网络、 信号输入端口等, 以及至少 一个上述任一实施例中的双极化天线辐射单元。
上述馈电网络与所述双极化天线辐射单元相连接, 用于通过输入端口接收来自基站 的信号,并对双极化天线辐射单元馈电,双极化天线辐射单元用于将所述信号辐射出去。 在本实施例中, 通过双极化天线辐射单元振子臂的轴不对称来增加新的谐振频段, 从而展宽谐振频段的宽度, 使得基站天线能够适应更宽的谐振频段。
以上所揭露的仅为本发明较佳实施例而已, 不能以此来限定本发明之权利范围, 因 此依本发明权利要求所作的等同变化, 仍属本发明所涵盖的范围。
Claims
1. 一种双极化天线辐射单元, 其特征在于, 所述双极化天线辐射单元包括四个辐 射体和一个连接部, 其中,
所述四个辐射体两两对置按十字形排列, 每个所述辐射体一端连接于所述连接部, 另一端沿远离所述连接部的方向延伸, 所述四个辐射体形成一个辐射面;
每个所述辐射体包括第一辐射臂和第二辐射臂, 所述第一辐射臂和第二辐射臂不对 称。
2. 如权利要求 1所述的双极化天线辐射单元, 其特征在于, 所述辐射体呈矩形, 所 述第一辐射臂包括第一馈电臂及第一振子臂, 所述第一馈电臂与所述连接部相连接, 所 述第一振子臂垂直于所述第一馈电臂, 向所述第二辐射臂延伸, 所述第一振子臂与所述 第一馈电臂组成 L型, 为所述辐射体形成的矩形的两个直角边; 所述第二辐射臂包括第 二馈电臂及、 第二振子臂和第一弯折部, 所述第二馈电臂与所述连接部相连接, 所述第 二馈电臂垂直于所述第一馈电臂, 所述第二振子臂垂直于所述第二馈电臂, 所述第二振 子臂向所述第一振子臂延伸 , 所述第二振子臂与所述第二振子臂组成 L型, 为所述辐射 体形成的矩形的另外两个直角边, 所述第一弯折部与所述第二振子臂相连接并向所述第 一馈电臂延伸。
3. 如权利要求 2所述的双极化天线辐射单元,其特征在于,所述四个辐射体形成平 面的田字形结构, 两个相邻的辐射体的第一馈电臂和第二馈电臂相互平行。
4. 如权利要求 2所述的双极化天线辐射单元, 其特征在于, 所述第一振子臂和第 二振子臂呈圆弧形。
5. 如权利要求 2所述的双极化天线辐射单元,其特征在于,每个所述辐射体的第二 振子臂的末端还包括第二弯折部, 所述第二弯折部连接所述第一弯折部与所述第一振子 臂。
6. 如权利要求 1所述的双极化天线辐射单元,其特征在于,所述四个辐射体呈十字 形排列, 所述第一辐射臂包括第一馈电臂及第一振子臂, 所述第二辐射臂包括第二馈电 臂及第二振子臂, 所述连接部位于第一平面, 所述第一振子臂及第二振子臂位于与所述 第一平面相平行的第二平面, 所述第一馈电臂及第二馈电臂倾斜于所述连接部所在的平 面, 所述第一馈电臂用于连接于所述第一振子臂和所述连接部, 所述第二馈电臂用于连 接所述第二振子臂和所述连接部, 四组所述第一馈电臂及第二馈电臂形成十字锥形结
构。
7. 如权利要求 6所述的双极化天线辐射单元,其特征在于,所述第一馈电臂一端连 接于所述连接部, 另一端沿十字锥形的棱朝远离所述连接部的方向延伸, 所述第一振子 臂一端连接于所述第一馈电臂, 另一端沿十字锥形的底边朝远离所述第一馈电臂的方向 延伸, 所述第一振子臂的末端垂直于所述第一振子臂弯折, 向所述连接部所在的第一平 面延伸, 所述第二馈电臂一端连接于所述连接部, 另一端沿十字锥形的棱朝远离所述连 接部的方向延伸, 所述第二振子臂一端连接于所述第二馈电臂, 另一端沿十字锥形的底 边朝远离所述第二馈电臂的方向延伸 , 所述第二振子臂的末端垂直于所述第二振子臂弯 折, 向所述连接部所在的第一平面延伸, 且延伸长度大于所述第一振子臂的末端的延伸 长度。
8. 如权利要求 6所述的双极化天线辐射单元, 其特征在于, 所述辐射体呈梯形或 者圆形或者椭圆形。
9. 如权利要求 7所述的双极化天线辐射单元,其特征在于, 两个相邻的辐射体的第 一馈电臂和第二馈电臂相互平行。
10、 如权利要求 6所述的双极化天线辐射单元, 其特征在于, 所述第一振子臂和第 二振子臂粗细不同。
11、一种基站天线, 包括馈电网络、 信号输入端口, 其特征在于, 包括至少一个权 利要求 1-10任一所述的双极化天线辐射单元;
所述馈电网络与所述双极化天线辐射单元相连接, 用于通过所述信号输入端口接收 来自基站的信号, 并对所述双极化天线辐射单元馈电, 所述双极化天线辐射单元用于将 所述信号辐射出去。
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DE202021003761U1 (de) | 2020-03-24 | 2022-03-25 | Commscope Technologies Llc | Basisstationsantennen mit einem aktiven Antennenmodul und zugehörige Vorrichtungen |
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