WO2022052379A1 - 一种新型巴伦结构及其辐射单元、天线 - Google Patents

一种新型巴伦结构及其辐射单元、天线 Download PDF

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Publication number
WO2022052379A1
WO2022052379A1 PCT/CN2020/141042 CN2020141042W WO2022052379A1 WO 2022052379 A1 WO2022052379 A1 WO 2022052379A1 CN 2020141042 W CN2020141042 W CN 2020141042W WO 2022052379 A1 WO2022052379 A1 WO 2022052379A1
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Prior art keywords
balun
support sheet
director
radiation
sheet
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PCT/CN2020/141042
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English (en)
French (fr)
Inventor
王宇
李明超
苏国生
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京信通信技术(广州)有限公司
京信射频技术(广州)有限公司
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Publication of WO2022052379A1 publication Critical patent/WO2022052379A1/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
    • H01Q1/50—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
    • H01Q1/12—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
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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

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  • the present invention relates to the field of mobile communication antennas, and more particularly, to a novel balun structure, a radiation unit and an antenna thereof.
  • the mutual interference can be effectively reduced by reducing the aperture of the radiating unit and filtering the corresponding frequency band.
  • small-diameter radiating elements cannot effectively widen the frequency bandwidth.
  • the balun is an important device for the balance conversion of the radiating element feed, and the improvement of the balun to solve the problem that the small-diameter radiating element cannot effectively broaden the frequency bandwidth has important research significance and broad application prospects.
  • the present invention aims to overcome the above-mentioned problem that the small-diameter radiating element in the prior art cannot effectively widen the frequency bandwidth, and provides a new type of balun structure, which is used to expand the use of the new type of balun without increasing the size. the purpose of the radiating element and the bandwidth of the antenna.
  • the technical solution adopted by the present invention is to provide a new type of balun structure, including a first support sheet on which a first balun and a first guide located above the first balun are arranged; a second support sheet , which is provided with a second balun and a second director located above the second balun; wherein, the first support sheet and the second support sheet are crossed, and the first support sheet One end of the first director and the second director provided with the second support piece is respectively used for connecting to the radiating surface, and the other end is respectively used for connecting to the ground.
  • the first director and the second director are respectively arranged on the first balun and the second balun to guide the energy to the radiation surface, thereby effectively increasing the radiation unit using the new balun structure and antenna bandwidth.
  • the first director and the first balun are arranged on the same support piece, and the second director and the second balun are arranged on the same support piece, and are opposite to each other.
  • the original structure and size of the support piece will not be changed or affected, but only the component of the director is added on the basis of the structure and size of the existing support piece, which can simply increase the use of the guide.
  • the bandwidth of the radiating element and antenna of the new balun structure is not be changed or affected, but only the component of the director is added on the basis of the structure and size of the existing support piece, which can simply increase the use of the guide.
  • the bandwidth of the radiating element and antenna of the new balun structure is provided.
  • this solution has wide applicability, since it is not necessary to design a new technical solution for the radiating element or other components in the antenna to match the new balun structure, the existing components can be used to form the new balun together. radiating elements or antennas, which also greatly reduces the cost.
  • a radiation unit includes a new type of balun structure; a radiation sheet is arranged on the new type of balun structure; wherein, the first director and the second director are connected with the radiation sheet and respectively connect the Energy is directed to the radiation sheet by the first balun and the second balun.
  • the radiation unit uses the new balun structure, which effectively expands the bandwidth of the radiation unit and makes it more suitable for practical application requirements.
  • An antenna includes a radiating element.
  • the antenna uses the new balun structure, which effectively expands the bandwidth of the antenna and makes it more suitable for practical application requirements.
  • the beneficial effects of the present invention are: the present invention, by integrating the director on the support sheet of the balun structure, increases the use of the new type of bar without changing the structure and size of the support sheet.
  • the bandwidth of the radiating unit and the antenna of the Lomb structure is improved.
  • the present invention also optimizes the director so that the director can better guide the energy to the radiation surface.
  • FIG. 1 is a structural diagram of a first support sheet 1 .
  • FIG. 2 is a structural diagram of the second support sheet 2 .
  • FIG. 3 is a schematic view of the assembly of the first support piece 1 and the second support piece 2 .
  • FIG. 4 is a structural diagram of a radiation unit.
  • FIG. 5 is a structural diagram of the radiation sheet 3 .
  • FIG. 6 is a standing wave diagram of a radiation unit.
  • FIG. 7 is a structural diagram of an antenna.
  • Figure 8 is a structural diagram of a traditional balun.
  • the new balun structure is applied to radiation units and antennas.
  • the first support sheet 1 and the second support sheet 2 are the bases of the novel balun structure, and are important components of the radiation unit and the antenna.
  • the first support sheet 1 and the second support sheet 2 are arranged crosswise, one end is connected to the radiating surface, and the other end is connected to the ground.
  • the first support sheet 1 and the second support sheet 2 may be PCB support sheets, or may be medium support sheets formed from a dielectric base material.
  • the radiation surface may be provided by a radiation unit such as a PCB radiation unit, a patch radiation unit, a metal die-cast radiation unit, or a plastic metalized radiation unit.
  • the ground refers to the ground plane.
  • the first support sheet 1 has two surfaces, namely a front surface and a back surface.
  • a first balun 11 is arranged on the front side of the first support sheet 1.
  • a first balun 11 is arranged on the front side of the first support sheet 1.
  • the director 12 is used to better guide the electromagnetic wave energy from the first balun 11 to the radiation surface.
  • the first director 12 is disposed above the first balun 11 , and both the first balun 11 and the first director 12 can be made of metal.
  • the backside of the first support sheet 1 is provided with a metal layer, and the metal layer is used for grounding.
  • the top end of the first support sheet 1 is provided with a first protrusion 13 .
  • the first support sheet 1 is provided with a first groove 14, and the first groove 14 is formed by the first support sheet
  • the top end of 1 extends inwardly above said first balun 11 .
  • the first balun 11 has a first feeding point 111 thereon. The first balun 11 is in an open state.
  • the arrangement of the second support piece 2 and the first support piece 1 is substantially the same.
  • a second balun 21 and a second guide 22 located above the second balun 21 are provided on the front surface of the second support sheet 2 .
  • the second support sheet 2 is also provided with a second protrusion 23 and a second groove 24 .
  • the second protrusions 23 are also arranged on the top of the second support sheet 2 , and there are two second protrusions 23 , but not limited to only two; and the first support sheet 1
  • the second groove 24 extends from the outside of the bottom end of the second support piece 2 toward the inside to the bottom of the second balun 21 .
  • a metal layer is provided on the back of the second support sheet 2 .
  • the second balun 21 has a second feeding point 211 thereon.
  • the second balun 21 is in an open state.
  • the first support piece 1 and the second support 2 are respectively snapped together through the first groove 14 and the second groove 24 to achieve the purpose of cross arrangement.
  • the second support sheet 2 is rotated 90° and inserted into the first support sheet 1; after the assembly is completed, the new balun structure is "X"
  • the first feeding point 111 and the second feeding point 211 are respectively located at the two poles of the novel balun structure.
  • the back surfaces of the first support sheet 1 and the second support sheet 2 are both provided with metal layers, after the assembly is completed, the first feed point 111 and the second feed point 211 will not be in contact with each other, In this way, the electromagnetic waves of the first feeding point 111 and the second feeding point 211 can be isolated to avoid mutual interference, so that the polarization isolation can be improved.
  • first support sheet 1 and second support sheet 2 may be integrally formed to further simplify manufacturing.
  • each of the diverters 22 includes at least a section of microstrip line.
  • the uppermost section of the microstrip line of the first support sheet 1 and/or the second support sheet 2 is extended to the the top of the support sheet where it is located.
  • the uppermost section of the microstrip line of the first support sheet 1 extends to the first protrusion 13 .
  • the uppermost section of the microstrip line of the second support sheet 2 extends to the second protrusion 23 .
  • the microstrip line on the first support sheet 1 is used for the description.
  • the first director 12 is described as having two microstrip lines, and the two microstrip lines are the first microstrip line 121 and the second microstrip line 122 respectively;
  • the two directors 22 are also provided with a third microstrip line 221 and a fourth microstrip line 222 at substantially the same position on the second support sheet 2 corresponding to the first microstrip line 121 and the second microstrip line 122 , respectively. .
  • the microstrip lines on the first support sheet 1 and the second support sheet 2 are respectively arranged in a sequence away from the first balun 11 and the second balun 21 , with the first director 12 is an example, that is, the distance between the second microstrip line 122 and the first balun 11 is greater than the distance between the first microstrip line 121 and the first balun 11 .
  • the lengths of the microstrip lines on the first support sheet 1 and/or the second support sheet 2 may be the same.
  • the line width of the microstrip line of the first director 12 and/or the second director 22 is 2 mm-3 mm.
  • the first director 12 and/or the second director 22 are each provided with at least two sections of microstrip lines, and on the same director, the distance a between adjacent microstrip lines is is one-sixteenth to one-eighth of the central wavelength.
  • the distance a between the first microstrip line 121 and the second microstrip line 122 is one-sixteenth to one-eighth of the center wavelength.
  • the distance b between the first balun 11 and/or the second balun 21 and its closest microstrip line is one-eighth of the central wavelength.
  • the distance b between the first balun 11 and the first microstrip line 121 is one-eighth of the center wavelength.
  • a strong coupling effect can be obtained through both the distance a and the distance b.
  • the lengths of the microstrip lines on the same support sheet can also be different, and between the adjacent microstrip lines on the first support sheet 1 and/or the second support sheet 2, the length of the The length of the microstrip line with the balun 21 farther away is 0.8 times the length of the microstrip line with the first balun 11 or the second balun 21 closer.
  • the length of the second microstrip line 122 is 0.8 times the length of the first microstrip line 121 .
  • the first groove 14 extends from the top of the first support sheet 1 toward the inside to above the first balun 11 , in this case, the microstrip line on the first support sheet 1 It is broken by the first groove 14 .
  • this embodiment provides a radiation unit, including the novel balun structure in Embodiment 1; a radiation sheet 3 is provided on the novel balun structure; wherein, the first director 12 and the second director 22 is connected to the radiation sheet 3 and guides energy from the first balun 11 and the second balun 21 to the radiation sheet 3 respectively.
  • the radiation plate 3 may be a half-wave array or a folded array, and the form of the radiation plate 3 does not affect the new type of balun.
  • the radiation sheet 3 may be a symmetrical structure.
  • the radiation plate 3 is provided with four radiation arms 31 , and the four radiation arms constitute two pairs of cross-polarized symmetrical oscillators.
  • the radiating arm 31 is provided with several radiating branches, and the adjacent radiating branches are connected by double U-shaped lines.
  • One of the radiation arms 31 is taken as an example for illustration.
  • the radiation arm 31 is provided with a plurality of radiation branches, the radiation branches are circuits, which are a first circuit 311, a second circuit 312, a third circuit 313, the first circuit 311, the second circuit 312, The third circuits 313 are arranged in sequence, and the first circuit 311 , the second circuit 312 , and the third circuit 313 are connected by the double U-shaped wires.
  • the double U-shaped line is formed by symmetrically arranging two U-shaped lines.
  • the two U-shaped lines are respectively the first U-shaped line 314 and the second U-shaped line 315 .
  • the first U-shaped line 314 , The second U-shaped wire 315 has the same structure.
  • the radiation sheet 3 is provided with four through holes 316 for feeding connection with the balun structure.
  • the new-type baluns are respectively clamped in the through holes 316 of the radiation sheet 3 through the first protrusions 13 and the second protrusions 23, and then connected by welding.
  • the frequency band coverage of the radiation unit using the traditional balun structure is 700MHz-810MHz when the standing wave is less than 1.6; while the radiation unit using the new balun is less than 1.6 when the standing wave is less than 1.6
  • the lower frequency band coverage is required to be 700MHz-950MHz, which is twice as large as the traditional balun structure.
  • this embodiment provides an antenna, including the radiation unit described in Embodiment 2; and a power divider 4 .
  • first support sheet 1 and the second support sheet 2 respectively provided with the first director 12 and the second director 22 are respectively connected to the radiation sheet 3, and the other end is connected to the radiation sheet 3 respectively. They are respectively connected to the power divider 4 and play the roles of unbalanced-balanced conversion and impedance matching.
  • the power divider 4 is a one-to-two power divider.
  • the arrangement of the conventional balun structure in the prior art is partially consistent with that of the novel balun structure in Example 1.
  • the new balun structure is different from the traditional balun structure in that parts of the first director 12 and the second director 22 are missing.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明涉及移动通信天线领域，提供一种新型巴伦结构及其辐射单元、天线，所述新型巴伦结构包括第一支撑片，其上设有第一巴伦和位于第一巴伦上方的第一引向器；第二支撑片，其上设有第二巴伦和位于所述第二巴伦上方的第二引向器；第一支撑片和所述第二支撑片交叉设置，且所述第一支撑片和所述第二支撑片设有所述第一引向器和所述第二引向器的一端分别用于连接至辐射面，另一端分别用于连接至地面。本发明通过在巴伦结构的支撑片上集成引向器，在不改变支撑片的结构和尺寸的前提下，增大了使用所述新型巴伦结构的辐射单元和天线的带宽，同时，无需额外增设其他部件，产品一致性较好，并能大大缩减成本，且有利于辐射单元及天线的小型化。

Description

一种新型巴伦结构及其辐射单元、天线 技术领域
本发明涉及移动通信天线领域，更具体地，涉及一种新型巴伦结构及其辐射单元、天线。
背景技术
随着5G移动通信系统的大规模地商用、电信800MHz LTE组网、以及移动2.6GHz TDD4G网络不断扩容完善，原有900MHz和1800MHz 2G、3G网络陆续退网，使得基站天面资源重新规划。为提高天线资源利用率，4G、5G天线不会单独发展，势必会逐渐融合到一起发展。在这其中，面临的一个挑战就将是多频段、多制式辐射单元共同存于同一副天线中，辐射单元之间互相干扰严重。
针对辐射单元之间的相互干扰的问题，现有技术中通过减小辐射单元的口径以及对相应频段滤波可以有效减少互扰。但是，小口径的辐射单元无法有效展宽频带宽度。
而巴伦作为辐射单元馈电平衡转换的重要器件，对巴伦进行改进以解决小口径的辐射单元无法有效展宽频带宽度的问题，具有重要的研究意义和广泛的应用前景。
发明内容
本发明旨在克服上述现有技术小口径的辐射单元无法有效展宽频带宽度的问题，提供一种新型巴伦结构，用于达到在不增加尺寸的情况下，扩大了使用了该新型巴伦的辐射单元和天线的带宽的目的。
本发明采取的技术方案是，提供一种新型巴伦结构，包括第一支撑片，其上设有第一巴伦和位于所述第一巴伦上方的第一引向器；第二支撑片，其上设有第二巴伦和位于所述第二巴伦上方的第二引向器；其中，所述第一支撑片和所述第二支撑片交叉设置，且所述第一支撑片和所述第二支撑片设有所述第一引向器和所述第二引向器的一端分别用于连接至辐射面，另一端分别用于连接至地面。
本方案通过在第一巴伦和第二巴伦上分别设置第一引向器和第二引向器，将能量引导至辐射面，有效地增大了使用所述新型巴伦结构的辐射单元和天线的带宽。更重要的是，所述 第一引向器与所述第一巴伦设置于同一个支撑片上，所述第二引向器与所述第二巴伦设置于同一个支撑片上，且对现有支撑片的原本结构和尺寸不作任何改变和影响，而是仅仅在现有支撑片的结构和尺寸的基础上，增设了引向器这一部件，简简单单即可增大了使用所述新型巴伦结构的辐射单元和天线的带宽。再者，本方案适用性广，由于不必对辐射单元或天线中的其它部件另行设计新的技术方案以匹配所述新型巴伦结构，采用现有的部件即可与所述新型巴伦共同形成辐射单元或天线，这也大大缩减了成本。
一种辐射单元，包括新型巴伦结构；辐射片，设于所述新型巴伦结构上；其中，所述第一引向器和所述第二引向器与所述辐射片相连并分别将能量由所述第一巴伦和所述第二巴伦引导至辐射片。本方案中，所述辐射单元使用了所述新型巴伦结构，有效地扩大了所述辐射单元的带宽，使之更符合实际应用的需求。
一种天线，包括辐射单元。本方案中，所述天线使用了所述新型巴伦结构，有效地扩大了所述天线的带宽，使之更符合实际应用的需求。
与现有技术相比，本发明的有益效果为：本发明通过在巴伦结构的支撑片上集成引向器，在不改变支撑片的结构和尺寸的前提下，增大了使用所述新型巴伦结构的辐射单元和天线的带宽，同时，无需额外增设其他部件，产品一致性较好，并能大大缩减成本，且有利于辐射单元及天线的小型化。另外，本发明还对引向器进行优化，从而使得所述引向器能够更好地将能量引导至辐射面。
附图说明
图1为第一支撑片1的结构图。
图2为第二支撑片2的结构图。
图3为第一支撑片1和第二支撑片2的装配示意图。
图4为辐射单元的结构图。
图5为辐射片3的结构图。
图6为辐射单元驻波图。
图7为天线的结构图。
图8为传统巴伦结构图。
附图标记：1、第一支撑片；11、第一巴伦；111、第一馈电点；12、第一引向器；121、第一微带线；122、第二微带线；13、第一凸起；14、第一凹槽；2、第二支撑片；21、第二巴伦； 211、第二馈电点；22、第二引向器；221、第三微带线；222、第四微带线；23、第二凸起；24、第二凹槽；3、辐射片；31、辐射臂；311、第一电路；312、第二电路；313、第三电路；314、第一U型线；315、第二U型线；316、通孔；4、功分器。
具体实施方式
实施例1
本实施例提供一种新型巴伦结构，为了方便理解本申请实施例所提供的一种新型巴伦结构，下面首先说明一下其应用场景。所述新型巴伦结构应用于辐射单元、天线。所述第一支撑片1和所述第二支撑片2为所述新型巴伦结构的基体，为辐射单元、天线的重要组成部分。所述第一支撑片1和所述第二支撑片2交叉设置，一端连接至辐射面，另一端连接至地面。所述第一支撑片1和所述第二支撑片2可以为PCB支撑片，也可为由介质基材形成介质支撑片。所述辐射面可以由PCB辐射单元、贴片辐射单元、金属压铸辐射单元或塑料金属化辐射单元等辐射单元提供。所述地面指的是接地面。
其中，如图1所示，所述第一支撑片1具有两个面，分别为正面和背面。所述第一支撑片1的正面上设置有第一巴伦11，为了使得增大使用所述新型巴伦的辐射单元和天线的带宽，所述第一支撑片1的正面上设置有第一引向器12，以将电磁波能量更好地从第一巴伦11引导至辐射面。具体地，所述第一引向器12设置于所述第一巴伦11上方，所述第一巴伦11和所述第一引向器12均可由金属构成。所述第一支撑片1的背面设有金属层，所述金属层用于接地。为了能够使得所述第一支撑片1与辐射面连接，所述第一支撑片1的顶端设置有第一凸起13。所述第一凸起13设置有两个，但不限于只有两个。为了能够使得所述第一支撑片1与所述第二支撑片2交叉设置，所述第一支撑片1设置有第一凹槽14，所述第一凹槽14由所述第一支撑片1的顶端外部朝内部延伸至所述第一巴伦11上方。所述第一巴伦11上具有第一馈电点111。所述第一巴伦11为开路状态。
其中，如图2所示，所述第二支撑片2与所述第一支撑片1的设置大致上相同。具体地，所述第二支撑片2正面上设置有第二巴伦21和位于所述第二巴伦21上方的第二引向器22。所述第二支撑片2还设置有第二凸起23和第二凹槽24。具体地，所述第二凸起23也设置于所述第二支撑片2的顶端，所述第二凸起23设置有两个，但不限于只有两个；与所述第一支撑片1不同的是，所述第二凹槽24由所述第二支撑片2的底端外部朝内部延伸至所述第二巴伦21的下方。所述第二支撑片2的背面上设有金属层。所述第二巴伦21上具有第二馈电点 211。所述第二巴伦21为开路状态。
如图3所示，所述第一支撑片1和第二支撑2分别通过所述第一凹槽14和所述第二凹槽24卡接到一起，实现交叉设置的目的。装配时，以所述第一支撑片1为基础，所述第二支撑片2旋转90°卡入到所述第一支撑片1中；装配完成后，所述新型巴伦结构呈“X”形，所述第一馈电点111和所述第二馈电点211分别位于所述新型巴伦结构两极。由于所述第一支撑片1和所述第二支撑片2的背面均设有金属层，完成装配后，所述第一馈电点111和所述第二馈电点211不会相互接触，如此可将所述第一馈电点111和所述第二馈电点211的电磁波隔离开，避免互相干扰，如此可提高两极化隔离度。
此外，在部分实施例中，上述第一支撑片1和第二支撑片2可以一体成型，以进一步简化制作。
具体地，为了能够使得所述第一引向器12和所述第二引向器22能够更好地适应辐射单元和天线的实际需求，所述第一引向器12和所述第二引向器22均包括至少一段微带线。
具体地，为了能够使得能量更好地经由微带线延伸至辐射面，并缩减成本，所述第一支撑片1和/或所述第二支撑片2最上方的一段微带线延伸至其所在的支撑片顶端。详细地，所述第一支撑片1最上方的一段微带线延伸至所述第一凸起13上。所述第二支撑片2最上方的一段微带线延伸至所述第二凸起23上。
具体地，为了能够使得所述微带线更好地将能量引导至所述辐射面，对微带线的相关参数进行了设置。为了更加方便对微带线进行阐述，以所述第一支撑片1上的微带线来进行阐述。本申请实施例中，以所述第一引向器12具有两条微带线进行描述，所述两条微带线分别为第一微带线121、第二微带线122；所述第二引向器22也在第二支撑片2上大致相同的位置上对应所述第一微带线121、第二微带线122分别设置有第三微带线221、第四微带线222。详细地，所述第一支撑片1和所述第二支撑片2上的微带线分别依次朝远离所述第一巴伦11和第二巴伦21的位置设置，以第一引向器12为例，即所述第二微带线122与所述第一巴伦11之间的距离大于所述第一微带线121与所述第一巴伦11之间的距离。所述第一支撑片1和/或所述第二支撑片2上的微带线长度可以是相同。详细地，所述第一引向器12和/或所述第二引向器22的微带线的线宽为2mm-3mm。详细地，所述第一引向器12和/或所述第二引向器22均设有至少两段微带线，且同一引向器上，相邻的微带线之间的距离a为十六分之一至八分之一中心波长。以第一引向器12为例，即第一微带线121与第二微带线122之间的距离a为十六分之一至八分之一中心波长。详细地，所述第一巴伦11和/或所述第二巴伦21与 其最接近的一段微带线之间的距离b为八分之一中心波长。以第一引向器12为例，所述第一巴伦11与所述第一微带线121之间的距离b为八分之一中心波长。本申请实施例通过该距离a和该距离b均能够获得较强的耦合效应。同一支撑片上的微带线长度也可以是不同的，所述第一支撑片1和/或所述第二支撑片2上相邻的微带线之间，与第一巴伦11或第二巴伦21距离较远的微带线的长度为与第一巴伦11或第二巴伦21距离较近的微带线的长度的0.8倍。以第一引向器12为例，所述第二微带线122的长度为所述第一微带线121的长度的0.8倍。另外，由于所述第一凹槽14由所述第一支撑片1的顶端外部朝内部延伸至所述第一巴伦11上方，此情形下，所述第一支撑片1上的微带线由所述第一凹槽14分断开。
实施例2
如图4所示，本实施例提供一种辐射单元，包括实施例1中的新型巴伦结构；辐射片3，设于所述新型巴伦结构上；其中，所述第一引向器12和所述第二引向器22与所述辐射片3相连并分别将能量由所述第一巴伦11和所述第二巴伦21引导至辐射片3。所述辐射片3可以是半波阵子，也可以是折合阵子，所述辐射片3的形式不对所述新型巴伦造成影响。
其中，如图5所示，所述辐射片3可为对称式结构。所述辐射片3设有四个辐射臂31，四个所述辐射臂构成两对交叉极化的对称振子。所述辐射臂31设有若干辐射支节，相邻的所述辐射支节之间通过双U型线连接。以其中一个辐射臂31作为例子来进行阐述。所述辐射臂31上设有若干辐射支节，所述辐射支节为电路，分别为第一电路311、第二电路312、第三电路313，所述第一电路311、第二电路312、第三电路313依次布置，且所述第一电路311、第二电路312、第三电路313之间通过所述双U型线连接。所述双U型线由两段呈U型的线对称布置形成，两段呈U型的线分别为第一U型线314、第二U型线315，所述第一U型线314、第二U型线315结构相同。
所述辐射片3上设有4个通孔316，用于与巴伦结构馈电连接。
所述新型巴伦分别通过所述第一凸起13、第二凸起23卡接于所述辐射片3的通孔316内后，通过焊接相连。
如图6所示，采用传统巴伦结构后的辐射单元在驻波小于1.6的指标要求下频段覆盖范围为700MHz-810MHz；而采用了所述新型巴伦后的辐射单元在驻波小于1.6的要求下频段覆盖范围为700MHz-950MHz，其覆盖范围比传统巴伦结构大一倍。
实施例3
如图7所示，本实施例提供一种天线，包括如实施例2所述的辐射单元；还包括功分器 4。
其中，所述第一支撑片1和所述第二支撑片2分别设有所述第一引向器12和所述第二引向器22的一端分别连接于所述辐射片3，另一端分别连接于所述功分器4，起到不平衡-平衡转换以及阻抗匹配的作用。
其中，具体在本实施例中，所述功分器4为一分二功分器。
如图8所示，现有技术中的传统巴伦结构，其设置与实施例1中新型巴伦结构中部分一致。所述新型巴伦结构与所述传统巴伦结构不同的是，缺少了所述第一引向器12和所述第二引向器22的部分。

Claims (11)

  1. 一种新型巴伦结构，其特征在于，包括
    第一支撑片(1)，其上设有第一巴伦(11)和位于所述第一巴伦(11)上方的第一引向器(12)；
    第二支撑片(2)，其上设有第二巴伦(21)和位于所述第二巴伦(21)上方的第二引向器(22)；
    其中，所述第一支撑片(1)和所述第二支撑片(2)交叉设置，且所述第一支撑片(1)和所述第二支撑片(2)设有所述第一引向器(12)和所述第二引向器(22)的一端分别用于连接至辐射面，另一端分别用于连接至地面。
  2. 根据权利要求1所述的一种新型巴伦结构，其特征在于，所述第一引向器(12)和所述第二引向器(22)均包括至少一段微带线。
  3. 根据权利要求2所述的一种新型巴伦结构，其特征在于，所述第一支撑片(1)和/或所述第二支撑片(2)最上方的一段微带线延伸至其所在的支撑片顶端。
  4. 根据权利要求2所述的一种新型巴伦结构，其特征在于，所述第一引向器(12)和/或所述第二引向器(22)的微带线的线宽为2mm-3mm。
  5. 根据权利要求2所述的一种新型巴伦结构，其特征在于，所述第一引向器(12)和/或所述第二引向器(22)均设有至少两段微带线，且同一引向器上，相邻的微带线之间的距离为十六分之一至八分之一中心波长。
  6. 根据权利要求2所述的一种新型巴伦结构，其特征在于，所述第一巴伦(11)和/或所述第二巴伦(21)与其最接近的一段微带线之间的距离为八分之一中心波长。
  7. 根据权利要求2至6任一项所述的一种新型巴伦结构，其特征在于，所述第一支撑片(1)和所述第二支撑片(2)上的微带线分别依次朝远离所述第一巴伦(11)和第二巴伦(21)的位置设置，且所述第一支撑片(1)和/或所述第二支撑片(2)上的微带线长度相同。
  8. 根据权利要求2至6任一项所述的一种新型巴伦结构，其特征在于，所述第一支撑片(1)和/或所述第二支撑片(2)上相邻的微带线之间，与第一巴伦(11)或第二巴伦(21)距离较远的微带线的长度为与第一巴伦(11)或第二巴伦(21)距离较近的微带线的长度的0.8倍。
  9. 一种辐射单元，其特征在于，包括
    如权利要求1至8任一项所述的新型巴伦结构；
    辐射片(3)，设于所述新型巴伦结构上；
    其中，所述第一引向器(12)和所述第二引向器(22)与所述辐射片(3)相连并分别将能量由所述第一巴伦(11)和所述第二巴伦(21)引导至辐射片(3)。
  10. 根据权利要求9所述的一种辐射单元，其特征在于，所述辐射片(3)设有四个辐射臂(31)，四个所述辐射臂构成两对交叉极化的对称振子；所述辐射臂(31)设有若干辐射支节，相邻的所述辐射支节之间通过双U型线连接。
  11. 一种天线，其特征在于，包括
    如权利要求9至10任一项所述的辐射单元。
PCT/CN2020/141042 2020-09-08 2020-12-29 一种新型巴伦结构及其辐射单元、天线 WO2022052379A1 (zh)

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