WO2019223304A1 - 一种超宽频双极化双向覆盖天线 - Google Patents

一种超宽频双极化双向覆盖天线 Download PDF

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WO2019223304A1
WO2019223304A1 PCT/CN2018/123234 CN2018123234W WO2019223304A1 WO 2019223304 A1 WO2019223304 A1 WO 2019223304A1 CN 2018123234 W CN2018123234 W CN 2018123234W WO 2019223304 A1 WO2019223304 A1 WO 2019223304A1
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frequency
ultra
polarization
antenna
wideband dual
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PCT/CN2018/123234
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English (en)
French (fr)
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张鹏
吴壁群
刘德富
陈秋梅
叶亮华
苏振华
吴泽海
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广东博纬通信科技有限公司
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Priority claimed from CN201810492436.5A external-priority patent/CN108448237A/zh
Priority claimed from CN201820760771.4U external-priority patent/CN208539093U/zh
Application filed by 广东博纬通信科技有限公司 filed Critical 广东博纬通信科技有限公司
Publication of WO2019223304A1 publication Critical patent/WO2019223304A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands

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  • the present invention relates to the technical field of mobile communications, and in particular to an ultra-wideband dual-polarization bidirectional coverage antenna.
  • the invention provides an ultra-wideband dual-polarization bidirectional coverage antenna with low cost, small size, convenient installation, ultra-wide frequency band, and bidirectional coverage antenna supporting polarization diversity to meet the needs of network coverage.
  • the frequency band covered by the antenna includes 690 -960MHz, 1710-2700MHz, 3300-3800MHz, has achieved full coverage of the current mobile communication main frequency bands, far exceeding the frequency of leaked cables and logarithmic cycles.
  • the present invention proposes an ultra-wideband dual-polarized bidirectional coverage antenna, which includes a first reflection plate and a second reflection plate, and the first reflection plate and the second reflection plate are arranged at a certain angle. ;
  • the first reflecting plate and the second reflecting plate are each provided with a low frequency radiation unit, an intermediate frequency radiation unit and a high frequency radiation unit.
  • the antenna is placed at a certain angle between the first reflection plate and the second reflection plate to achieve bidirectional coverage
  • the certain included angle ranges from 0 to 60 °.
  • the numbers of the low-frequency radiation unit, the intermediate-frequency radiation unit, and the high-frequency radiation unit provided on the first reflection plate and the second reflection plate are respectively the same.
  • the number of the low-frequency radiation units is one, and the number of the intermediate-frequency radiation units and the number of the high-frequency radiation units are three.
  • the number of low-frequency radiating elements of the antenna is 1, and the number of intermediate-frequency radiating elements and high-frequency radiating elements are both 3, so that the low-frequency gain is lower than that of the high-frequency and high-frequency.
  • the low-frequency radiation unit, the intermediate-frequency radiation unit, and the high-frequency radiation unit are arranged along respective axes to form an array, and the three axes are arranged in parallel and compactly with each other.
  • the low-frequency array axis is located between the intermediate-frequency array axis and the high-frequency array axis.
  • the distance between the axis of the intermediate frequency array and the axis of the low frequency array is 0.6 to 0.9 times the intermediate frequency operating wavelength.
  • the distance between the axis of the high-frequency array and the axis of the low-frequency array is 0.6 to 0.9 times the high-frequency operating wavelength; thereby achieving the purpose of reducing the size of the antenna;
  • the pitch of the radiation units in the same frequency band is set according to the working wavelength of each frequency band.
  • the spacing between the radiation units in the same frequency band is 0.7 to 1 times the working wavelength.
  • a feeding network corresponding to each frequency band is respectively provided on the first reflecting plate and the second reflecting plate.
  • the same frequency band feed network of the first and second reflecting plates is connected through a one-to-two power divider; thereby achieving bidirectional coverage of the entire antenna;
  • the one-to-two power divider connected to the feeding network of each frequency band is connected through a low, middle, and high three-frequency combiner built in the antenna to achieve ultra-wideband coverage of the antenna.
  • the ultra-wideband dual-polarization bidirectional coverage antenna proposed by the present invention has the characteristics of ultra-wideband, dual-polarization, two-way coverage, and convenient installation, and the bandwidth of the ultra-wide frequency band can cover a variety of network standards, which can meet the requirements of tunnels, subways, Covering applications in streets, highways, railways, and village roads, etc., the compact array design reduces the outer size of the antenna and reduces the difficulty of antenna installation and subsequent maintenance.
  • This antenna supports polarization diversity. Compared with the earlier single-polarized two-way coverage antenna, its coverage performance is greatly improved; its ultra-wideband performance is far better than the early two-way antenna, which can reduce network sites and reduce network construction costs.
  • FIG. 1 is a schematic diagram of an included angle between the integrated reflective plate 1 and the integrated reflective plate 2 in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an array arrangement in an embodiment of the present invention.
  • 1-integrated reflector 2-integrated reflector; 3-low frequency radiation unit; 4-intermediate frequency radiation unit; 5-high frequency radiation unit; Y1-first axis; Y2-second axis; Y3-third axis ;
  • the directional indication is only used to explain in a specific posture (as shown in the accompanying drawings) (Shown) the relative positional relationship and movement of each component, etc., if the specific posture changes, the directivity indication will change accordingly.
  • the invention proposes an ultra-wideband dual-polarization bidirectional coverage antenna
  • the antenna includes an integrated reflective plate 1 and an integrated reflective plate 2, and the integrated reflective plate 1 and the integrated reflective plate 2 are at an included angle. ⁇ setting. In this embodiment, the included angle is 60 ° so as to achieve bidirectional coverage.
  • the integrated reflection plate 1 and the integrated reflection plate 2 are each provided with a low-frequency radiation unit 3, an intermediate-frequency radiation unit 4 and a high-frequency radiation unit 5. In this embodiment, the numbers of the low-frequency radiating unit 3, the intermediate-frequency radiating unit 4, and the high-frequency radiating unit 5 provided on the first reflecting plate and the second reflecting plate are respectively the same.
  • the number of the low-frequency radiating units is one, and the number of the intermediate-frequency radiating units and the number of the high-frequency radiating units are three; the low-frequency gain is lower than that of the high-frequency and high-frequency, thereby achieving the coverage distance of three frequency bands. Equivalent, to achieve the best network coverage effect;
  • the low-frequency radiation unit 3, the intermediate-frequency radiation unit 4, and the high-frequency radiation unit 5 are arranged along respective axes Y1, Y2, and Y3 to form an array, and three axes ( The first axis Y1, the second axis Y2, and the third axis Y3) are arranged in parallel and compactly with each other; the antenna is compactly arranged according to three parallel axes to form an array, and the low-frequency array axis is located between the intermediate-frequency array axis and the high-frequency array axis.
  • the distance between the axis of the intermediate frequency array and the axis of the low frequency array is 0.6 to 0.9 times the working frequency of the intermediate frequency.
  • the distance between the axis of the high-frequency array and the axis of the low-frequency array is 0.6 to 0.9 times the high-frequency operating wavelength;
  • the spacing between the radiation units in the same frequency band is set according to the working wavelength of each frequency band.
  • the spacing between the radiation units in the same frequency band is 0.7 to 1 times the working wavelength.
  • a feeding network corresponding to a radiating unit of each frequency band is provided on the integrated reflecting plate 1 and the integrated reflecting plate 2 respectively, and the first reflecting plate and the second reflecting plate have the same frequency band feeding network.
  • a split-two splitter Connected by a split-two splitter; thus achieving two-way coverage of the entire antenna; split-two splitters connected to the feeding network of each frequency band are connected through the built-in low, middle and high tri-band combiners of the antenna to achieve super-superiority of the antenna. Broadband coverage.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

本发明公开一种超宽频双极化双向覆盖天线，涉及动通信技术领域，包括第一反射板和第二反射板，所述的第一反射板与第二反射板之间按照一定的夹角设置；第一反射板和第二反射板上均设置有低频辐射单元、中频辐射单元和高频辐射单元；具有超宽频、双极化、双向覆盖、安装便利等特性，且超宽频段的带宽能够覆盖多种网络制式，可满足隧道、地铁、街道、公路、铁路、城中村的道路等场景的覆盖应用，紧凑的阵列排布设计，减小了天线的外围尺寸，降低了天线的安装的以及后续维护的难度。本天线支持极化分集，对比早期的单极化双向覆盖天线，其覆盖性能大大提升；其超宽频的性能也远超过早期双向天线，可减少网络站点，降低网络建设成本。

Description

一种超宽频双极化双向覆盖天线 技术领域
本发明涉及动通信技术领域，尤其涉及一种超宽频双极化双向覆盖天线。
背景技术
随着近几年移动通信技术的快速发展和演变，移动用户对通信的需求已经从基本的语音通话上升到快速稳定的数据体验，这对运营商来说无疑是个新的挑战，除了通过建设更多的基站来满足通信系统的基本服务要求之外，还需要集中力量去优化网络和改善服务，最大程度的提高网络覆盖质量或增加覆盖面积，从而提升客户使用体验，为运营商带来更大的收益。在做网络优化的时候会遇到一些非常规的场景，例如隧道、地铁、街道、公路、铁路、城中村的道路等场景，此类区域的网络覆盖采用常规的基站天线会存在很大的困难，主要是站址空间狭小，常规的基站天线无法安装，早期的做法是采用泄漏电缆来覆盖，但是泄漏电缆的造价太高，会加大运营商的成本；泄露电缆逐渐被淘汰，取而代之的是双向对数周期天线，此类天线成本较低，覆盖效果较优，但较难实现双极化，进而无法实现极化分集，在数据业务大量提升的情况下较难匹配需求。
发明内容
本发明提供一种超宽频双极化双向覆盖天线，成本低、尺寸小、方便安装、超宽频段、支持极化分集的双向覆盖天线，以满足网络覆盖的需求，该天线覆盖的频段包括690-960MHz，1710-2700MHz，3300-3800MHz，实现了对目前移动通信主要频段的全覆盖，远远超过泄露电缆以及对数周期的使用频段。
为了实现上述目的，本发明提出一种超宽频双极化双向覆盖天线，包括第一反射板和第二反射板，所述的第一反射板与第二反射板之间按照一定的夹角设置；第一反射板和第二反射板上均设置有低频辐射单元、中频辐射单元和高频辐射单元。
该天线第一反射板和第二反射板之间成一定夹角放置，从而实现双向覆盖；
优选地，所述的一定的夹角，其范围为0-60°。
优选地，所述的第一反射板和第二反射板上所设置的低频辐射单元、中频辐射单元和高频辐射单元的数量分别一致。
优选地，所述的低频辐射单元的数量为1个，中频辐射单元数量与高频辐射单元数量均为3个。
该天线低频辐射单元数量为1，中频辐射单元和高频辐射单元数量均为3，使得低频增益 低于中高频的增益，从而实现三个频段的覆盖距离相当，达到最优的网络覆盖效果；
优选地，所述的低频辐射单元、中频辐射单元和高频辐射单元沿着各自的轴线设置形成阵列，三条轴线相互平行且紧凑排布。
优选地，低频阵列轴线位于中频阵列轴线和高频阵列轴线之间。
优选地，中频阵列轴线与低频阵列轴线的距离为0.6～0.9倍的中频工作波长。
优选地，高频阵列轴线与低频阵列轴线的距离为0.6～0.9倍的高频频工作波长；从而达到降低天线尺寸的目的；
优选地，所述的阵列，其中同频段辐射单元的间距根据各频段的工作波长设置。
优选地，所述的同频段辐射单元的间距为0.7～1倍的工作波长。
优选地，在所述第一反射板和第二反射板上分别设置各频段对应的馈电网络。
优选地，所述第一反射板和第二反射板上的同频段辐馈电网络通过一分二功分器连接；从而实现整个天线的双向覆盖；
优选地，连接各频段馈电网络的一分二功分器通过内置于天线的低、中、高三频合路器连接，实现天线的超宽频覆盖。
本发明提出的一种超宽频双极化双向覆盖天线，具有超宽频、双极化、双向覆盖、安装便利等特性，且超宽频段的带宽能够覆盖多种网络制式，可满足隧道、地铁、街道、公路、铁路、城中村的道路等场景的覆盖应用，紧凑的阵列排布设计，减小了天线的外围尺寸，降低了天线的安装的以及后续维护的难度。本天线支持极化分集，对比早期的单极化双向覆盖天线，其覆盖性能大大提升；其超宽频的性能也远超过早期双向天线，可减少网络站点，降低网络建设成本。
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简单地介绍，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示出的结构获得其他的附图。
图1为本发明一种实施例中一体化反射板1和一体化反射板2之间夹角示意图；
图2为本发明一种实施例中阵列排布示意图；
符号说明：
1-一体化反射板；2-一体化反射板；3-低频辐射单元；4-中频辐射单元；5-高频辐射单元；Y1-第一轴线；Y2-第二轴线；Y3-第三轴线；
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
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的一部分实施例，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。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示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、运动情况等，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。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“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。
本发明提出一种超宽频双极化双向覆盖天线；
本发明第一优选实施例中，如图1所示，天线包括一体化反射板1和一体化反射板2，所述的一体化反射板1和一体化反射板2之间按照一定的夹角θ设置，本实施例中，夹角角度为60°，从而实现双向覆盖；一体化反射板1和一体化反射板2上均设置有低频辐射单元3、中频辐射单元4和高频辐射单元5；本实施例中，所述的第一反射板和第二反射板上所设置的低频辐射单元3、中频辐射单元4和高频辐射单元5的数量分别一致。
本实施例中，所述的低频辐射单元的数量为1个，中频辐射单元数量与高频辐射单元数量均为3个；使得低频增益低于中高频的增益，从而实现三个频段的覆盖距离相当，达到最优的网络覆盖效果；
本发明第一优选实施例中，如图2所示，所述的低频辐射单元3、中频辐射单元4和高频辐射单元5沿着各自的轴线Y1、Y2、Y3设置形成阵列，三条轴线(第一轴线Y1、第二轴线Y2、第三轴线Y3)相互平行且紧凑排布；该天线按照三条平行的轴线紧凑排布构成阵列，低频阵列轴线位于中频阵列轴线和高频阵列轴线之间。中频阵列轴线与低频阵列轴线的距离为0.6～0.9倍的中频工作波长。高频阵列轴线与低频阵列轴线的距离为0.6～0.9倍的高频频工作波长；；
所述的阵列，其中同频段辐射单元的间距根据各频段的工作波长设置；本实施例中，同频段辐射单元的间距为0.7～1倍的工作波长。
本实施例中，在一体化反射板1和一体化反射板2上分别设置各频段的辐射单元对应的馈电网络，所述第一反射板和第二反射板上的同频段的馈电网络通过一分二功分器连接；从而实现整个天线的双向覆盖；连接各频段馈电网络的一分二功分器通过内置于天线的低、中、高三频合路器连接，实现天线的超宽频覆盖。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (12)

  1. 一种超宽频双极化双向覆盖天线，其特征在于，包括第一反射板和第二反射板，所述的第一反射板与第二反射板之间按照一定的夹角设置；第一反射板和第二反射板上均设置有低频辐射单元、中频辐射单元和高频辐射单元；所述低频辐射单元、中频辐射单元和高频辐射单元沿着各自的轴线设置形成天线阵列，三条轴线相互平行且紧凑排布。
  2. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，所述的一定的夹角，其范围为0～60°。
  3. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，所述第一反射板和第二反射板上设置的低频辐射单元、中频辐射单元和高频辐射单元的数量分别一致。
  4. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，所述的低频辐射单元的数量为1个，中频辐射单元数量与高频辐射单元数量均为3个。
  5. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，低频阵列轴线位于中频阵列轴线和高频阵列轴线之间。
  6. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，中频阵列轴线与低频阵列轴线的距离为0.6～0.9倍的中频工作波长。
  7. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，高频阵列轴线与低频阵列轴线的距离为0.6～0.9倍的高频频工作波长。
  8. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，所述的天线阵列，其中同频段辐射单元的间距根据各频段的工作波长设置。
  9. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，同频段辐射单元的间距为0.7～1倍的工作波长。
  10. 根据权利要求1所述的超宽频双极化双向覆盖天线，其特征在于，在所述第一反射板和第二反射板上分别设置各频段对应的馈电网络。
  11. 根据权利要求10所述的超宽频双极化双向覆盖天线，其特征在于，所述第一反射板和第二反射板上的同频段馈电网络通过一分二功分器连接。
  12. 根据权利要求11所述的超宽频双极化双向覆盖天线，其特征在于，连接各频段馈电网络的一分二功分器通过内置于天线的低、中、高三频合路器连接，实现天线的超宽频覆盖。
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