WO2021000476A1 - Multi-frequency narrow beam antenna - Google Patents

Multi-frequency narrow beam antenna Download PDF

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Publication number
WO2021000476A1
WO2021000476A1 PCT/CN2019/115390 CN2019115390W WO2021000476A1 WO 2021000476 A1 WO2021000476 A1 WO 2021000476A1 CN 2019115390 W CN2019115390 W CN 2019115390W WO 2021000476 A1 WO2021000476 A1 WO 2021000476A1
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frequency
low
column
narrow
radiation units
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PCT/CN2019/115390
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French (fr)
Chinese (zh)
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刘培涛
黄立文
陆尧
孙善球
卜斌龙
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京信通信技术(广州)有限公司
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Priority to CN201910591918.0A priority Critical patent/CN110265795A/en
Priority to CN201910591918.0 priority
Application filed by 京信通信技术(广州)有限公司 filed Critical 京信通信技术(广州)有限公司
Publication of WO2021000476A1 publication Critical patent/WO2021000476A1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/06Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/29Combinations of different interacting antenna units for giving a desired directional characteristic
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/30Combinations of separate antenna units operating in different wavebands and connected to a common feeder system

Abstract

Provided is a multi-frequency narrow beam antenna with a good convergence and a high gain. The multi-frequency narrow beam antenna comprises a first high-frequency column, a second high-frequency column, a third high-frequency column, and a fourth high-frequency column respectively formed by a plurality of first high-frequency radiation units, second high-frequency radiation units, third high-frequency radiation units, and fourth high-frequency radiation units correspondingly located along a first reference line, a second reference line, a third reference line, and a fourth reference line; and a first low-frequency column and a second low-frequency column respectively formed by a plurality of first low-frequency radiation units and second low-frequency radiation units correspondingly located along the first reference line and the third reference line, wherein the first reference line, the second reference line, the third reference line and the fourth reference line are sequentially arranged at intervals and are parallel to each other, the first high-frequency column and the second high-frequency column form a first high-frequency narrow beam array, the third high-frequency column and the fourth high-frequency column form a second high-frequency narrow beam array, the first low-frequency column and the second low-frequency column form a low-frequency narrow beam array, and the low-frequency narrow beam array comprises first low-frequency radiation units and second low-frequency radiation units adjacent to each other in a pairwise manner, and second low-frequency radiation units that are not adjacent to the first low-frequency radiation units, and/or first low-frequency radiation units that are not adjacent to the second low-frequency radiation units.

Description

多频窄波束天线Multi-frequency narrow beam antenna 技术领域Technical field
本发明涉及移动通信天线技术领域,尤其涉及一种多频窄波束天线。The invention relates to the technical field of mobile communication antennas, in particular to a multi-frequency narrow beam antenna.
背景技术Background technique
随着移动通信技术的迅速发展,用户对通信质量的要求也越来越高,现有的常规天线已无法满足所有覆盖场景的需求,尤其是具有狭长特点的特殊覆盖场景(例如高铁、公路等特殊定向覆盖场景),若采用现有常规水平波束宽度为65°的基站天线进行覆盖,天线电磁信号很容易越过道路的两侧,从而对道路区域以外造成干扰,因此针对高铁等狭长覆盖场景,往往需要采用窄波束天线进行覆盖。With the rapid development of mobile communication technology, users have higher and higher requirements for communication quality. The existing conventional antennas can no longer meet the needs of all coverage scenarios, especially special coverage scenarios with narrow and long characteristics (such as high-speed rail, highways, etc.) Special directional coverage scenarios), if the existing conventional base station antenna with a horizontal beam width of 65° is used for coverage, the antenna electromagnetic signal can easily cross both sides of the road, causing interference outside the road area. Therefore, for narrow and long coverage scenarios such as high-speed rail, It is often necessary to use a narrow beam antenna for coverage.
然而,现有的窄波束天线,低频波束发散,高低频增益也较差,容易影响旁边区域的覆盖,只能实现820HZ-960MHZ和1710MHZ-2170MHZ两种频段的较好覆盖,难以满足5G高频段的覆盖。However, the existing narrow-beam antennas have divergent low-frequency beams and poor high- and low-frequency gains, which easily affect the coverage of nearby areas. They can only achieve good coverage in two frequency bands of 820HZ-960MHZ and 1710MHZ-2170MHZ, which is difficult to meet the 5G high frequency band. Coverage.
发明内容Summary of the invention
有鉴于此,本发明提供了一种多频窄波束天线,旨在突破现有技术瓶颈,解决现有窄波束天线低频波束发散、高低频增益较差的技术问题。In view of this, the present invention provides a multi-frequency narrow-beam antenna, which aims to break through the bottleneck of the prior art and solve the technical problems of low-frequency beam divergence and poor high- and low-frequency gain of the existing narrow-beam antenna.
为了解决上述技术问题,本发明的多频窄波束天线采用的技术方案是:In order to solve the above technical problems, the technical solution adopted by the multi-frequency narrow-beam antenna of the present invention is:
一种多频窄波束天线,包括:A multi-frequency narrow beam antenna, including:
由多个第一高频辐射单元沿第一参考线形成的第一高频列、由多个第二高频辐射单元沿第二参考线形成的第二高频列、由多个第三高频辐射单元沿第三参考线形成的第三高频列以及由多个第四高频辐射单元沿第四参考线形成的第四高频列;A first high-frequency column formed by a plurality of first high-frequency radiation units along a first reference line, a second high-frequency column formed by a plurality of second high-frequency radiation units along a second reference line, and a plurality of third high-frequency radiation units A third high frequency column formed by the frequency radiation unit along the third reference line and a fourth high frequency column formed by a plurality of fourth high frequency radiation units along the fourth reference line;
由多个第一低频辐射单元沿所述第一参考线形成的第一低频列以及由多个 第二低频辐射单元沿所述第三参考线形成的第二低频列;A first low frequency column formed by a plurality of first low frequency radiation units along the first reference line and a second low frequency column formed by a plurality of second low frequency radiation units along the third reference line;
所述第一参考线、所述第二参考线、所述第三参考线及所述第四参考线依次间隔设置且互相平行,所述第一高频列与所述第二高频列组成第一高频窄波束阵列,所述第三高频列与所述第四高频列组成第二高频窄波束阵列,所述第一低频列与所述第二低频列组成低频窄波束阵列;The first reference line, the second reference line, the third reference line, and the fourth reference line are sequentially spaced apart and parallel to each other, and the first high-frequency column and the second high-frequency column form A first high frequency narrow beam array, the third high frequency column and the fourth high frequency column form a second high frequency narrow beam array, and the first low frequency column and the second low frequency column form a low frequency narrow beam array ;
所述低频窄波束阵列中包括两两相邻的第一低频辐射单元和第二低频辐射单元,以及与各所述第一低频辐射单元均不相邻的所述第二低频辐射单元,和/或,与各所述第二低频辐射单元均不相邻的所述第一低频辐射单元。The low-frequency narrow beam array includes two adjacent first low-frequency radiation units and second low-frequency radiation units, and the second low-frequency radiation units that are not adjacent to each of the first low-frequency radiation units, and/ Or, the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units.
进一步的,当所述第一低频列中具有与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元时,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元位于所述第一低频列的列首和/或列尾。Further, when the first low-frequency column has the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units in the second low-frequency column, it is The first low-frequency radiation units that are not adjacent to each of the second low-frequency radiation units are located at the column head and/or column end of the first low-frequency column.
进一步的,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元的数量≤2。Further, the number of the first low-frequency radiation units that are not adjacent to each of the second low-frequency radiation units in the second low-frequency column is ≤2.
进一步的,当所述第二低频列中具有与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元时,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元位于所述第二低频列的列首和/或列尾。Further, when the second low-frequency column has the second low-frequency radiating unit that is not adjacent to each of the first low-frequency radiating units in the first low-frequency column, it is The second low-frequency radiation units that are not adjacent to each of the first low-frequency radiation units are located at the column head and/or column end of the second low-frequency column.
进一步的,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元的数量≤2。Further, the number of the second low-frequency radiation units that are not adjacent to each of the first low-frequency radiation units in the first low-frequency column is ≤2.
进一步的,当所述第一低频列中具有与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元,且所述第二低频列中具有与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元时,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元位于列首,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元位于所述第二低频列的列尾。Further, when the first low-frequency column has the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units in the second low-frequency column, and the second low-frequency column has When the second low-frequency radiating unit that is not adjacent to each of the first low-frequency radiating units in the first low-frequency column is not adjacent to each of the second low-frequency radiating units in the second low-frequency column The first low-frequency radiation unit is located at the head of the column, and the second low-frequency radiation unit that is not adjacent to each of the first low-frequency radiation units in the first low-frequency column is located at the end of the second low-frequency column .
进一步的,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元仅1个,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元也仅有1个。Further, there is only one first low-frequency radiating unit that is not adjacent to each of the second low-frequency radiating units in the second low-frequency column, which is connected to each of the first low-frequency radiating units in the first low-frequency column. There is also only one second low-frequency radiation unit that is not adjacent to the radiation unit.
进一步的,所述第一高频窄波束阵列的列间距D1为0.7~0.9λ1,所述第二高频窄波束阵列的列间距D2为0.7~0.9λ2,所述低频窄波束阵列的列间距D3为0.7~0.9λ3;Further, the column spacing D1 of the first high frequency narrow beam array is 0.7 to 0.9λ1, the column spacing D2 of the second high frequency narrow beam array is 0.7 to 0.9λ2, and the column spacing of the low frequency narrow beam array D3 is 0.7~0.9λ3;
所述第一高频窄波束阵列中任意相邻两个所述第一高频辐射单元以及任意相邻两个所述第二高频辐射单元之间的行间距d1均为0.8~0.9λ1,所述第二高频窄波束阵列中任意相邻两个所述第三高频辐射单元以及任意相邻两个所述第四高频辐射单元之间的行间距d2均为0.8~0.9λ2,所述低频窄波束阵列中任一相邻两个所述第一低频辐射单元以及任意相邻两个所述第二低频辐射单元之间的行间距d3均为0.8~0.9λ3;The row spacing d1 between any two adjacent first high-frequency radiation units and any two adjacent second high-frequency radiation units in the first high-frequency narrow beam array is 0.8-0.9λ1, The row spacing d2 between any two adjacent third high-frequency radiation units and any two adjacent fourth high-frequency radiation units in the second high-frequency narrow beam array are both 0.8-0.9λ2, The row spacing d3 between any two adjacent first low-frequency radiation units and any two adjacent second low-frequency radiation units in the low-frequency narrow beam array is 0.8-0.9λ3;
λ1、λ2及λ3分别为所述第一高频窄波束阵列、所述第二高频窄波束阵列及所述低频窄波束阵列的中心频率波长。λ1, λ2, and λ3 are the center frequency wavelengths of the first high frequency narrow beam array, the second high frequency narrow beam array, and the low frequency narrow beam array, respectively.
进一步的,所述第一低频列的各所述第一低频辐射单元分别与所述第一高频列中的各所述第一高频辐射单元同轴嵌套设置,所述第二低频列的各所述第二低频辐射单元分别与所述第三高频列中的各所述第三高频辐射单元同轴嵌套设置。Further, each of the first low-frequency radiation units in the first low-frequency column is coaxially nested with each of the first high-frequency radiation units in the first high-frequency column, and the second low-frequency column Each of the second low-frequency radiation units is coaxially nested with each of the third high-frequency radiation units in the third high-frequency column.
进一步的,两两相邻的所述第一低频辐射单元和所述第二低频辐射单元并排设置,或者,所述第一低频列中的各所述第一低频辐射单元与所述第二低频列中的各所述第二低频辐射单元错位设置。Further, the first low-frequency radiation unit and the second low-frequency radiation unit that are adjacent to each other are arranged side by side, or each of the first low-frequency radiation unit and the second low-frequency radiation unit in the first low-frequency column Each of the second low-frequency radiation units in the column is arranged in a staggered manner.
进一步的,所述第一高频窄波束阵列的工作频段为1710~2170MHz,所述第二高频窄波束阵列的工作频段为1710~2690MHz,所述低频窄波束阵列的工作频段为820~960MHz。Further, the working frequency band of the first high-frequency narrow beam array is 1710-2170 MHz, the working frequency band of the second high-frequency narrow beam array is 1710-2690 MHz, and the working frequency band of the low-frequency narrow beam array is 820~960 MHz. .
基于上述技术方案,本发明的多频窄波束天线相对于现有技术至少具有以下有益效果:Based on the above technical solution, the multi-frequency narrow-beam antenna of the present invention has at least the following beneficial effects compared with the prior art:
本发明的多频窄波束天线,通过设置上述第一高频窄波束阵列、第二高频窄波束阵列和低频窄波束阵列,可以实现三频段、窄波束覆盖,满足高铁等狭长场景全面覆盖通讯网络服务的高要求;通过将低频窄波束阵列设置成具有与各所述第一低频辐射单元均不相邻的所述第二低频辐射单元和/或与各所述第二低频辐射单元均不相邻的所述第一低频辐射单元,可使第一低频列具有由单独的第一低频辐射单元形成的低频辐射单元组和/或使第二低频列具有由单独的第二低频辐射单元形成的低频辐射单元组,如此在满足垂直面波束赋形要求所需的各辐射单元数量的前提下,由于上述低频辐射单元组具有单独的第一低频辐射单元或第二低频辐射单元,相应的就可以减少第一低频单元和/或第二低频辐射单元的数量,从而简化低频窄波束阵列的边界,提高低频波束收敛性并改善高低频增益;此外,第一低频辐射单元和/或第二低频辐射单元数量的减少还可以避免低频辐射单元与高频辐射单元之间的互耦影响,同时有利于提高第一高频窄波束阵列和/或第二高频窄波束阵列的增益、驻波等电气指标,以获得较优的天线电气性能和辐射性能。The multi-frequency narrow-beam antenna of the present invention can realize three-frequency band and narrow-beam coverage by setting the first high-frequency narrow-beam array, the second high-frequency narrow-beam array, and the low-frequency narrow-beam array to meet the requirements of comprehensive coverage communication in narrow and long scenes such as high-speed rail High requirements for network services; by setting the low-frequency narrow beam array to have the second low-frequency radiating unit that is not adjacent to each of the first low-frequency radiating units and/or not to each of the second low-frequency radiating units The adjacent first low-frequency radiating unit can make the first low-frequency column have a low-frequency radiation unit group formed by a single first low-frequency radiating unit and/or make the second low-frequency column have a single second low-frequency radiating unit formed Under the premise of meeting the number of radiation units required by the vertical beamforming requirements, since the above-mentioned low-frequency radiation unit group has a single first low-frequency radiation unit or a second low-frequency radiation unit, correspondingly The number of the first low-frequency unit and/or the second low-frequency radiation unit can be reduced, thereby simplifying the boundary of the low-frequency narrow beam array, improving the convergence of the low-frequency beam and improving the high and low frequency gain; in addition, the first low-frequency radiation unit and/or the second low-frequency radiation unit The reduction in the number of radiating units can also avoid the influence of mutual coupling between the low-frequency radiating unit and the high-frequency radiating unit, and at the same time help to improve the gain, standing waves, etc. of the first high-frequency narrow beam array and/or the second high-frequency narrow beam array Electrical indicators to obtain better antenna electrical performance and radiation performance.
附图说明Description of the drawings
图1为本发明实施例提供的一种多频窄波束天线的第一种结构示意图;1 is a schematic diagram of the first structure of a multi-frequency narrow beam antenna provided by an embodiment of the present invention;
图2为本发明实施例提供的一种多频窄波束天线的第二种结构示意图;2 is a schematic diagram of a second structure of a multi-frequency narrow beam antenna according to an embodiment of the present invention;
图3为本发明实施例提供的一种多频窄波束天线的第三种结构示意图;3 is a schematic diagram of a third structure of a multi-frequency narrow-beam antenna provided by an embodiment of the present invention;
图4为本发明实施例提供的一种多频窄波束天线的第四种结构示意图;4 is a schematic diagram of a fourth structure of a multi-frequency narrow-beam antenna provided by an embodiment of the present invention;
图5为本发明实施例提供的一种多频窄波束天线的第五种结构示意图;5 is a schematic diagram of a fifth structure of a multi-frequency narrow beam antenna provided by an embodiment of the present invention;
附图标记说明:Description of reference signs:
110-第一低频列;111a、111b、111c、111d-第一低频辐射单元;120-第二低频列;121a、121b、121c、121d-第二低频辐射单元;200-第一高频窄波束阵列;210-第一高频列;211-第一高频辐射单元;220-第二高频列;221-第二高频辐射单元;300-第二高频窄波束阵列;310-第三高频列;311-第三高频辐射单元;320- 第四高频列;321-第四高频辐射单元;A1-第一参考线;A2-第二参考线;A3-第三参考线;A4-第四参考线。110-first low-frequency column; 111a, 111b, 111c, 111d-first low-frequency radiation unit; 120-second low-frequency column; 121a, 121b, 121c, 121d-second low-frequency radiation unit; 200-first high-frequency narrow beam Array; 210-first high-frequency column; 211-first high-frequency radiation unit; 220-second high-frequency radiation unit; 221-second high-frequency radiation unit; 300-second high-frequency narrow beam array; 310-third High-frequency column; 311-third high-frequency radiation unit; 320-fourth high-frequency column; 321-fourth high-frequency radiation unit; A1-first reference line; A2-second reference line; A3-third reference line ; A4-The fourth reference line.
具体实施方式Detailed ways
为了使本发明要解决的技术问题、技术方案及有益效果更加清楚明白,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仅用以解释本发明,并不用于限定本发明。In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
需要说明的是,当元件被称为“固定于”或“设于”另一个元件上时,它可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为是“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。It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or there may be a centering element at the same time. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time.
在本发明的描述中,需要理解的是,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示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一个或者更多个该特征。在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。In the description of the present invention, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless specifically defined otherwise.
还需要说明的是,以下实施例中的上、下、顶、底、侧、左、右等方位用语,仅是互为相对概念或是以产品的正常使用状态为参考的,而不应该认为是具有限制性的。It should also be noted that the terms up, down, top, bottom, side, left, and right in the following embodiments are only relative concepts or refer to the normal use of the product, and should not be considered Is restrictive.
请一并参照图1至图5,本发明实施例提供了一种多频窄波束天线,包括:Please refer to FIGS. 1 to 5 together. An embodiment of the present invention provides a multi-band narrow beam antenna, including:
由多个第一高频辐射单元211沿第一参考线A1形成的第一高频列210、由多个第二高频辐射单元221沿第二参考线A2形成的第二高频列220、由多个第三高频辐射单元311沿第三参考线A3形成的第三高频列310以及由多个第四高频辐射单元321沿第四参考线A4形成的第四高频列320;A first high-frequency column 210 formed by a plurality of first high-frequency radiation units 211 along the first reference line A1, a second high-frequency column 220 formed by a plurality of second high-frequency radiation units 221 along the second reference line A2, A third high-frequency column 310 formed by a plurality of third high-frequency radiation units 311 along the third reference line A3, and a fourth high-frequency column 320 formed by a plurality of fourth high-frequency radiation units 321 along the fourth reference line A4;
由多个第一低频辐射单元(例如图1中的111a、111b、111c、111d)沿第一参考线A1形成的第一低频列110以及由多个第二低频辐射单元(例如图1中的121a、121b、121c)沿第三参考线A3形成的第二低频列120;A first low-frequency column 110 formed by a plurality of first low-frequency radiation units (e.g. 111a, 111b, 111c, 111d in FIG. 1) along the first reference line A1 and a plurality of second low-frequency radiation units (e.g., FIG. 1 121a, 121b, 121c) the second low frequency column 120 formed along the third reference line A3;
第一参考线A1、第二参考线A2、第三参考线A3及第四参考线A4依次间隔设置且互相平行,第一高频列210与第二高频列220组成第一高频窄波束阵列200,第三高频列310与第四高频列320组成第二高频窄波束阵列300,第一低频列110和第二低频列120组成低频窄波束阵列(未示出);The first reference line A1, the second reference line A2, the third reference line A3, and the fourth reference line A4 are sequentially spaced apart and parallel to each other. The first high-frequency column 210 and the second high-frequency column 220 form a first high-frequency narrow beam The array 200, the third high frequency column 310 and the fourth high frequency column 320 form a second high frequency narrow beam array 300, and the first low frequency column 110 and the second low frequency column 120 form a low frequency narrow beam array (not shown);
低频窄波束阵列中包括两两相邻的第一低频辐射单元和第二低频辐射单元(例如图1中的111b和121a、111c和121b、111d和121c),以及与各第二低频辐射单元(例如图1中的121a、121b、121c)均不相邻的第一低频辐射单元(例如图1中的111a),和/或,与各第一低频辐射单元(例如图3中的111a、111b、111c)均不相邻的第二低频辐射单元(例如图3中的121d)。The low-frequency narrow beam array includes two adjacent first low-frequency radiation units and second low-frequency radiation units (for example, 111b and 121a, 111c and 121b, 111d and 121c in Figure 1), and each second low-frequency radiation unit ( For example, 121a, 121b, 121c in FIG. 1) are not adjacent to the first low-frequency radiation unit (such as 111a in FIG. 1), and/or, and each first low-frequency radiation unit (such as 111a, 111b in FIG. 3) , 111c) the second low-frequency radiation unit (for example, 121d in FIG. 3) that are not adjacent.
该多频窄波束天线,通过设置上述第一高频窄波束阵列200、第二高频窄波束阵列300和低频窄波束阵列,可以实现三频段、窄波束覆盖,满足高铁等狭长场景全面覆盖通讯网络服务的高要求;通过将低频窄波束阵列设置成具有与各第一低频辐射单元均不相邻的第二低频辐射单元和/或与各第二低频辐射单元均不相邻的第一低频辐射单元,可使第一低频列110具有由单独的第一低频辐射单元形成的低频辐射单元组和/或使第二低频列120具有由单独的第二低频辐射单元形成的低频辐射单元组,如此在满足垂直面波束赋形要求所需的各辐射单元数量的前提下,由于上述低频辐射单元组具有单独的第一低频辐射单元或第二低频辐射单元,相应的就可以减少第一低频单元和/或第二低频辐射单元的数量,从而简化低频窄波束阵列的边界,提高低频波束收敛性并改善高低频增益;此外,第一低频辐射单元和/或第二低频辐射单元数量的减少还可以避免低频辐射单元与高频辐射单元之间的互耦影响,同时有利于提高第一高频窄波束阵列、第二高频窄波束阵列的增益、驻波等电气指标,以获得较优的天线电气性能和辐射性能。The multi-frequency narrow-beam antenna can realize three-frequency band and narrow-beam coverage by setting the first high-frequency narrow-beam array 200, the second high-frequency narrow-beam array 300, and the low-frequency narrow-beam array to meet the needs of high-speed rail and other narrow and long scenes for comprehensive coverage of communications High requirements for network services; by setting the low-frequency narrow beam array to have a second low-frequency radiation unit that is not adjacent to each first low-frequency radiation unit and/or a first low-frequency radiation unit that is not adjacent to each second low-frequency radiation unit The radiation unit can make the first low-frequency column 110 have a low-frequency radiation unit group formed by a single first low-frequency radiation unit and/or make the second low-frequency column 120 have a low-frequency radiation unit group formed by a single second low-frequency radiation unit, In this way, on the premise that the number of radiation units required for vertical beamforming requirements is met, since the above-mentioned low-frequency radiation unit group has a single first low-frequency radiation unit or a second low-frequency radiation unit, the first low-frequency unit can be reduced accordingly. And/or the number of second low-frequency radiating units, thereby simplifying the boundary of the low-frequency narrow beam array, improving low-frequency beam convergence and improving high-low-frequency gain; in addition, the number of first low-frequency radiating units and/or second low-frequency radiating units is also reduced It can avoid the influence of mutual coupling between the low-frequency radiation unit and the high-frequency radiation unit, and at the same time help to improve the gain of the first high-frequency narrow-beam array and the second high-frequency narrow-beam array, standing waves and other electrical indicators to obtain better Antenna electrical performance and radiation performance.
应当理解的是,在实际应用时,上述两两相邻的第一低频辐射单元和第二低频辐射单元经功分器连接后再与多频波束天线中的移相器(未示出)连接,从而形成32°窄波束;而上述单独的第一低频辐射单元、单独的第二低频辐射单 元没有设置对应的功分器,即均不连接功分器,而是与连接多频窄波束天线中的移相器直接相连。It should be understood that, in practical applications, the two adjacent first and second low-frequency radiating units are connected through a power divider and then connected to a phase shifter (not shown) in the multi-frequency beam antenna. , Thus forming a 32° narrow beam; and the above-mentioned separate first low-frequency radiation unit and separate second low-frequency radiation unit are not equipped with corresponding power dividers, that is, they are not connected to the power divider, but are connected to the multi-frequency narrow beam antenna The phase shifter in is directly connected.
在实际应用中,上述第一低频列110和第二低频列120也可以分别沿第二参考线A2、第四参考线A4设置,在此不做限制。In practical applications, the above-mentioned first low-frequency column 110 and the second low-frequency column 120 may also be arranged along the second reference line A2 and the fourth reference line A4 respectively, which is not limited here.
作为本发明的一个优选实施例,请一并参照图1和图2,当上述第一低频列110中具有与第二低频列120中的各第二低频辐射单元(例如:图1中的121a、121b、121c;图2中的121a、121b)不相邻的第一低频辐射单元(例如:图1中的111a;图2中的111a和111d)时,与第二低频列120中的各第二低频辐射单元(例如:图1中的121a、121b、121c;图2中的121a、121b)不相邻的第一低频辐射单元(例如:图1中的111a;图2中的111a和111d)位于第一低频列110的列首和/或列尾。将与第二低频列120中的各第二低频辐射单元不相邻的第一低频辐射单元设置在第一低频列110的列首和/或列尾,对于低频波束收敛性以及天线电气性能的改善具有更好的效果,并且可以减少对低频窄波束阵列方向图的影响。进一步优选的是,与第二低频列120中的各第二低频辐射单元不相邻的第一低频辐射单元的数量≤2。如此,可以在提高收敛性的同时,确保低频窄波束阵列的覆盖效果较好,避免第二低频列120相对于第一低频列110而言,第二低频辐射单元数量过少而影响低频增益等辐射指标。请参照图2,当与第二低频列120中的各第二低频辐射单元121a、121b不相邻的第一低频辐射单元111a和111d的数量=2时,更为优选的是,将这两个第一低频辐射单元111a和111d分别置于第一低频列110的列首和列尾,以确保第一低频列110的辐射性能较好。As a preferred embodiment of the present invention, please refer to FIGS. 1 and 2 together. When the first low-frequency column 110 has the same second low-frequency radiating unit in the second low-frequency column 120 (for example, 121a in FIG. , 121b, 121c; 121a, 121b in Figure 2) non-adjacent first low-frequency radiation unit (for example: 111a in Figure 1; 111a and 111d in Figure 2), and each of the second low-frequency column 120 The second low-frequency radiation unit (for example: 121a, 121b, 121c in Figure 1; 121a, 121b in Figure 2) is not adjacent to the first low-frequency radiation unit (for example: 111a in Figure 1; 111a and 111d) Located at the beginning and/or end of the first low-frequency column 110. The first low-frequency radiating unit that is not adjacent to each second low-frequency radiating unit in the second low-frequency column 120 is arranged at the column head and/or the column end of the first low-frequency column 110, which is important for low-frequency beam convergence and antenna electrical performance. The improvement has a better effect and can reduce the impact on the pattern of the low-frequency narrow beam array. It is further preferred that the number of first low-frequency radiation units that are not adjacent to each second low-frequency radiation unit in the second low-frequency column 120 is ≤2. In this way, it is possible to improve the convergence while ensuring better coverage of the low-frequency narrow beam array, avoiding the second low-frequency column 120 from having too few second low-frequency radiating units compared to the first low-frequency column 110, which may affect the low-frequency gain, etc. Radiation indicators. Referring to FIG. 2, when the number of first low-frequency radiation units 111a and 111d that are not adjacent to each of the second low-frequency radiation units 121a, 121b in the second low-frequency column 120=2, it is more preferable to combine the two The first low-frequency radiation units 111a and 111d are respectively placed at the column head and column end of the first low-frequency column 110 to ensure that the first low-frequency column 110 has better radiation performance.
同理,作为本发明的一个优选实施例,请一并参照图3和图4,当上述第二低频列120中可具有与第一低频列110中的各第一低频辐射单元(例如:图3中的111a、111b、111c,图4中的111a、111b)不相邻的第二低频辐射单元(例如:图3中的121d,图4中的121a和121d)时,与第一低频列110中的各第一低频辐射单元(例如:图3中的111a、111b、111c,图4中的111a、111b) 不相邻的第二低频辐射单元(例如:图3中的121d,图4中的121a和121d)位于第二低频列120的列首和/或列尾。将与第一低频列110中的各第一低频辐射单元不相邻的第二低频辐射单元设置在第二低频列120的列首和/或列尾,对于低频波束收敛性以及天线电气性能的改善具有更好的效果,并且可以减少对低频窄波束阵列方向图的影响。进一步优选的是,与第一低频列110中的各第一低频辐射单元不相邻的第二低频辐射单元的数量≤2。如此,可以在提高收敛性的同时,确保低频窄波束阵列的覆盖效果较好,避免第一低频列110相对于第二低频列120而言,第一低频辐射单元数量过少而影响低频增益等辐射指标。请参照图4,当与第一低频列110中的各第一低频辐射单元111a、111b不相邻的第二低频辐射单元121a和121d的数量=2时,更为优选的是,将这两个第一低频辐射单元121a和121d分别置于第二低频列120的列首和列尾,以确保第一低频列120的辐射性能较好。In the same way, as a preferred embodiment of the present invention, please refer to FIGS. 3 and 4 together. When the above-mentioned second low-frequency column 120 may have the same first low-frequency radiation unit in the first low-frequency column 110 (for example: When 111a, 111b, 111c in Figure 3, 111a, 111b in Figure 4) are not adjacent to the second low-frequency radiation unit (for example: 121d in Figure 3, 121a and 121d in Figure 4), and the first low-frequency column Each first low-frequency radiation unit in 110 (for example: 111a, 111b, 111c in Fig. 3, 111a, 111b in Fig. 4) non-adjacent second low-frequency radiating unit (for example: 121d in Fig. 3, Fig. 4 121a and 121d) are located at the beginning and/or end of the second low-frequency column 120. The second low-frequency radiating unit, which is not adjacent to each first low-frequency radiating unit in the first low-frequency column 110, is arranged at the column head and/or column end of the second low-frequency column 120, which is important for low-frequency beam convergence and antenna electrical performance. The improvement has a better effect and can reduce the impact on the pattern of the low-frequency narrow beam array. It is further preferred that the number of second low-frequency radiation units that are not adjacent to each first low-frequency radiation unit in the first low-frequency column 110 is ≤2. In this way, it is possible to improve convergence while ensuring better coverage of the low-frequency narrow-beam array, avoiding that the first low-frequency column 110 has too few first low-frequency radiating units compared to the second low-frequency column 120, which may affect the low-frequency gain, etc. Radiation indicators. 4, when the number of second low-frequency radiation units 121a and 121d that are not adjacent to each of the first low-frequency radiation units 111a and 111b in the first low-frequency column 110 = 2, it is more preferable to combine these two The first low-frequency radiation units 121a and 121d are respectively placed at the head and the end of the second low-frequency column 120 to ensure that the radiation performance of the first low-frequency column 120 is better.
此外,作为本发明的一个优选实施例,请参照图5,当上述第一低频列110中具有与第二低频列120中的各第二低频辐射单元121a、121b、121c不相邻的第一低频辐射单元111a,第二低频列120中具有与第一低频列110中的各第一低频辐射单元111a、111b、111c不相邻的第二低频辐射单元121c时,与第二低频列120中的各第二低频辐射单元121a、121b、121c不相邻的第一低频辐射单元111a位于列首,与第一低频列110中的各第一低频辐射单元111a、111b、111c不相邻的第二低频辐射单元121c位于第二低频列120的列尾。即,第一低频列110和第二低频列120分别具有单独的第一低频辐射单元111a和单独的第二低频辐射单元第二低频辐射单元121c。如此,有利于提高第一低频列110和第二低频列120的对称性,从而改善第一低频列110和第二低频列120的辐射方向图对称性,半功率波束宽度的波宽收敛性、天线增益、前后比及轴向交叉极化均能达到较好的水平。进一步的优选的是,与第二低频列120中的各第二低频辐射单元不相邻的第一低频辐射单元仅1个,与第一低频列110中的各第一低频辐射单元不相邻的第二低频辐射单元也仅有1个。如此,可以在提高收敛性 的同时,确保低频窄波束阵列的覆盖效果较好,避免第一低频辐射单元和第二低频辐射单元的数量过少而影响低频增益等辐射指标。In addition, as a preferred embodiment of the present invention, please refer to FIG. 5, when the first low-frequency column 110 has first low-frequency radiation units 121a, 121b, 121c that are not adjacent to the second low-frequency radiation units 121a, 121b, and 121c in the second low-frequency column 120. Low-frequency radiation unit 111a, when the second low-frequency column 120 has a second low-frequency radiation unit 121c that is not adjacent to each of the first low-frequency radiation units 111a, 111b, 111c in the first low-frequency column 110, The first low-frequency radiation unit 111a that is not adjacent to each of the second low-frequency radiation units 121a, 121b, and 121c is located at the head of the column, and the first low-frequency radiation unit 111a, which is not adjacent to each of the first low-frequency radiation units 111a, 111b, and 111c in the first low-frequency column 110 The second low-frequency radiation unit 121c is located at the end of the second low-frequency column 120. That is, the first low-frequency column 110 and the second low-frequency column 120 respectively have a single first low-frequency radiation unit 111a and a single second low-frequency radiation unit 121c. In this way, it is beneficial to improve the symmetry of the first low-frequency column 110 and the second low-frequency column 120, thereby improving the symmetry of the radiation pattern of the first low-frequency column 110 and the second low-frequency column 120, the convergence of the half-power beam width, The antenna gain, front-to-rear ratio and axial cross-polarization can all reach a good level. Further preferably, there is only one first low-frequency radiating unit that is not adjacent to each second low-frequency radiating unit in the second low-frequency column 120, and is not adjacent to each first low-frequency radiating unit in the first low-frequency column 110 There is only one second low-frequency radiating unit. In this way, it is possible to improve the convergence while ensuring a better coverage effect of the low-frequency narrow-beam array, and prevent the number of first low-frequency radiation units and second low-frequency radiation units from being too small to affect radiation indicators such as low-frequency gain.
下面以低频窄波束阵列具有4组低频辐射单元组为例,具体说明上述低频窄波束阵列的几种较佳的组阵形式,如下:Taking the low-frequency narrow-beam array with 4 groups of low-frequency radiating element groups as an example, several preferable array forms of the above-mentioned low-frequency narrow-beam array are described in detail as follows:
第一种组阵形式是:请参照图1,第一低频列110具有4个第一低频辐射单元111a、111b、111c、111d,第二低频列120中具有3个第二低频辐射单元121a、121b、121c,第一低频辐射单元111b与第二低频辐射单元121a两两相邻形成一组低频辐射单元,第一低频辐射单元111b与第二低频辐射单元121a经功分器相连以形成32°窄波束覆盖,同理,第一低频辐射单元111c与第二低频辐射单元121b两两相邻并经功分器相连以形成32°窄波束覆盖,第一低频辐射单元111d与第二低频辐射单元121c两两相邻并经功分器相连以形成32°窄波束覆盖;单独的1个第一低频辐射单元111a作为一组低频辐射单元,其位于第一低频列110的列首,形成65°波束覆盖。The first array form is: please refer to Figure 1, the first low-frequency column 110 has four first low-frequency radiation units 111a, 111b, 111c, 111d, and the second low-frequency column 120 has three second low-frequency radiation units 121a, 121b, 121c, the first low-frequency radiation unit 111b and the second low-frequency radiation unit 121a are adjacent to each other to form a group of low-frequency radiation units. The first low-frequency radiation unit 111b and the second low-frequency radiation unit 121a are connected through a power divider to form a 32° Narrow beam coverage. Similarly, the first low-frequency radiation unit 111c and the second low-frequency radiation unit 121b are adjacent to each other and connected by a power splitter to form a 32° narrow beam coverage. The first low-frequency radiation unit 111d and the second low-frequency radiation unit 121c are adjacent in pairs and connected by a power splitter to form a 32° narrow beam coverage; a single first low-frequency radiating unit 111a serves as a group of low-frequency radiating units, which is located at the head of the first low-frequency column 110, forming 65° Beam coverage.
第二种组阵形式是:请参照图2,第一低频列110具有4个第一低频辐射单元111a、111b、111c、111d,第二低频列120中具有2个第二低频辐射单元121a、121b,2个第二低频辐射单元121a、121b位于第二低频列120的列中,第二低频辐射单元121a与第一低频辐射单元111b两两相邻并形成一组低频辐射单元,第二低频辐射单元121a与第一低频辐射单元111b经功分器相连以形成32°窄波束覆盖,同理,第二低频辐射单元121b与第一低频辐射单元111c两两相邻并经功分器相连以形成32°窄波束覆盖;单独的第一低频辐射单元111a位于第一低频列110的列首,单独的第一低频辐射单元111d位于第一低频列110的列尾,其均形成65°波束覆盖。The second array form is: please refer to Figure 2. The first low-frequency column 110 has four first low-frequency radiating units 111a, 111b, 111c, 111d, and the second low-frequency column 120 has two second low-frequency radiating units 121a, 121b, two second low-frequency radiation units 121a, 121b are located in the second low-frequency column 120. The second low-frequency radiation unit 121a and the first low-frequency radiation unit 111b are adjacent to each other in pairs and form a group of low-frequency radiation units. The radiation unit 121a and the first low-frequency radiation unit 111b are connected via a power splitter to form a 32° narrow beam coverage. Similarly, the second low-frequency radiation unit 121b and the first low-frequency radiation unit 111c are adjacent to each other and connected via a power splitter to A 32° narrow beam coverage is formed; the single first low-frequency radiating unit 111a is located at the head of the first low-frequency column 110, and the single first low-frequency radiating unit 111d is located at the end of the first low-frequency column 110, both of which form a 65° beam coverage .
第三种组阵形式是:请参照图3,第一低频列110中具有3个第一低频辐射单元111a、111b、111c,第二低频列120中具有4个第二低频辐射单元121a、121b、121c、121d,第一低频辐射单元111a与第二低频辐射单元121a两两相邻并经功分器相连以形成32°窄波束覆盖,第一低频辐射单元111b与第二低频辐 射单元121b两两相邻并经功分器相连以形成32°窄波束覆盖,第一低频辐射单元111c与第二低频辐射单元121c两两相邻并经功分器相连以形成32°窄波束覆盖;单独的1个第二低频辐射单元121d位于第二低频列120的列尾,其形成65°波束覆盖。The third array form is: please refer to Figure 3, the first low-frequency column 110 has three first low-frequency radiation units 111a, 111b, 111c, and the second low-frequency column 120 has four second low-frequency radiation units 121a, 121b. , 121c, 121d, the first low-frequency radiation unit 111a and the second low-frequency radiation unit 121a are adjacent to each other in pairs and connected by a power splitter to form a 32° narrow beam coverage. The first low-frequency radiation unit 111b and the second low-frequency radiation unit 121b are two Two adjacent and connected by a power splitter to form a 32° narrow beam coverage, the first low-frequency radiation unit 111c and a second low-frequency radiation unit 121c are adjacent to each other and connected by a power splitter to form a 32° narrow beam coverage; A second low-frequency radiation unit 121d is located at the end of the second low-frequency column 120, which forms a beam coverage of 65°.
第四种组阵形式是:请参照图4,第二低频列120具有4个第二低频辐射单元121a、121b、121c、121d,第一低频列110中具有2个第一低频辐射单元111a、111b,2个第一低频辐射单元111a、111b位于第一低频列110的列中,第一低频辐射单元111a与第二低频辐射单元121b两两相邻并经功分器相连以形成32°窄波束覆盖,第二低频辐射单元111b与第二低频辐射单元121c两两相邻并经功分器相连以形成32°窄波束覆盖;单独的第二低频辐射单元121a位于第二低频列120的列首,单独的第二低频辐射单元121d位于第二低频列120的列尾,其均形成65°波束覆盖。The fourth array form is: please refer to Figure 4, the second low-frequency column 120 has four second low-frequency radiation units 121a, 121b, 121c, 121d, and the first low-frequency column 110 has two first low-frequency radiation units 111a, 111b, the two first low-frequency radiation units 111a, 111b are located in the first low-frequency column 110. The first low-frequency radiation unit 111a and the second low-frequency radiation unit 121b are adjacent to each other in pairs and connected by a power divider to form a 32° narrow Beam coverage, the second low-frequency radiation unit 111b and the second low-frequency radiation unit 121c are adjacent to each other and connected by a power splitter to form a 32° narrow beam coverage; a single second low-frequency radiation unit 121a is located in the second low-frequency column 120 First, a single second low-frequency radiation unit 121d is located at the end of the second low-frequency column 120, and they all form a 65° beam coverage.
第五种组阵形式是:请参照图5,第一低频列110具有3个第一低频辐射单元111a、111b、111c,第二低频列120具有3个第二低频辐射单元121a、121b、121c,第一低频辐射单元111b与第二低频辐射单元121a两两相邻并经功分器相连以形成32°窄波束覆盖,第二低频辐射单元111c与第二低频辐射单元121b两两相邻并经功分器相连以形成32°窄波束覆盖;单独的第一低频辐射单元111a位于第一低频列110的列首,其形成65°波束覆盖,单独的第二低频辐射单元121c位于二低频列120的列尾,其形成65°波束覆盖。The fifth array form is: please refer to Figure 5, the first low-frequency column 110 has three first low-frequency radiation units 111a, 111b, 111c, and the second low-frequency column 120 has three second low-frequency radiation units 121a, 121b, 121c. The first low-frequency radiation unit 111b and the second low-frequency radiation unit 121a are adjacent to each other in pairs and are connected by a power splitter to form a 32° narrow beam coverage. The second low-frequency radiation unit 111c and the second low-frequency radiation unit 121b are adjacent to each other in pairs. Connected by a power splitter to form a 32° narrow beam coverage; a single first low-frequency radiation unit 111a is located at the head of the first low-frequency column 110, which forms a 65° beam coverage, and a single second low-frequency radiation unit 121c is located in the second low-frequency column The 120 column tail, which forms a 65° beam coverage.
对于上述图1所示的第一种组阵形式和图2所示的第二种组阵形式,第二低频列120中第二低频辐射单元的减少,可以大幅降低对第二高频窄波束阵列300的波束收敛性以及增益、驻波、隔离等电气指标的影响,同时也有利于提高第一高频窄波束阵列200的增益、驻波和隔离度指标。对于上述图3所示的第三种组阵形式和图4所示的第四种组阵形式,第一低频列110中第一低频辐射单元的减少,可以大幅降低对第一高频窄波束阵列200的波束收敛性以及增益、驻波、隔离等电气指标的影响,同时也有利于提高第二高频窄波束阵列300的 增益、驻波和隔离度指标。对于上述图5所示的第五种组阵形式,则可以大幅降低对第一高频窄波束阵列200和第二高频窄波束阵列300的波束收敛性以及增益、驻波、隔离等电气指标的影响,同时低频窄波束阵列的方向图也可达到较优的水平。For the first array form shown in FIG. 1 and the second array form shown in FIG. 2, the reduction of the second low-frequency radiation unit in the second low-frequency column 120 can greatly reduce the impact on the second high-frequency narrow beam. The beam convergence of the array 300 and the influence of electrical indicators such as gain, standing wave, isolation, etc., are also beneficial to improving the gain, standing wave, and isolation indicators of the first high-frequency narrow beam array 200. For the third array form shown in FIG. 3 and the fourth array form shown in FIG. 4, the reduction of the first low-frequency radiation unit in the first low-frequency column 110 can greatly reduce the impact on the first high-frequency narrow beam. The beam convergence of the array 200 and the influence of electrical indicators such as gain, standing wave, isolation, etc., are also conducive to improving the gain, standing wave, and isolation indicators of the second high-frequency narrow beam array 300. For the fifth array form shown in FIG. 5, the beam convergence of the first high-frequency narrow-beam array 200 and the second high-frequency narrow-beam array 300 and electrical indicators such as gain, standing wave, and isolation can be greatly reduced. At the same time, the pattern of the low-frequency narrow beam array can also reach a better level.
需要说明的是,上述列首和列尾仅是互为相对概念或是以产品的正常使用状态为参考的,而不应该认为是具有限制性的。It should be noted that the above-mentioned column heads and column tails are only relative concepts or refer to the normal use of the product, and should not be considered restrictive.
应当理解的是,在实际应用时,可以根据需要,增加低频窄波束阵列中低频辐射单元的组数,即增加第一低频辐射单元和/或第二低频辐射单元的数量,在此不作限制。It should be understood that in practical applications, the number of low-frequency radiation units in the low-frequency narrow beam array can be increased as needed, that is, the number of first low-frequency radiation units and/or second low-frequency radiation units is increased, which is not limited here.
作为本发明的一个优选实施例,请一并参照图1至图5,上述第一高频窄波束阵列200的列间距D1为0.7~0.9λ1,第二高频窄波束阵列300的列间距D2为0.7~0.9λ2,低频窄波束阵列的列间距D3为0.7~0.9λ3;第一高频窄波束阵列200中任意相邻两个第一高频辐射单元211以及任意相邻两个第二高频辐射单元221之间的行间距d1均为0.8~0.9λ1,第二高频窄波束阵列300中任意相邻两个第三高频辐射单元311以及任意相邻两个第四高频辐射单元321之间的行间距d2均为0.8~0.9λ2,低频窄波束阵列中任一相邻两个第一低频辐射单元以及任意相邻两个第二低频辐射单元之间的行间距d3均为0.8~0.9λ3;λ1为第一高频窄波束阵列200的中心频率波长,λ2为第二高频窄波束阵列300的中心频率波长,λ3为低频窄波束阵列的中心频率波长。采用上述列间距和行间距的设置,能够有效的优化天线的垂直面副瓣电平,优化阵列间的隔离度,减少列间耦合,相应的降低了去耦的难度和成本,使天线的电气性能和工作可靠性更好,同时有利于天线小型化。As a preferred embodiment of the present invention, please refer to FIGS. 1 to 5 together. The column spacing D1 of the first high frequency narrow beam array 200 is 0.7 to 0.9λ1, and the column spacing D2 of the second high frequency narrow beam array 300 The column spacing D3 of the low-frequency narrow beam array is 0.7-0.9λ3; the first high-frequency narrow-beam array 200 has any two adjacent first high-frequency radiation units 211 and any two adjacent second-high The row spacing d1 between the high-frequency radiation units 221 is 0.8~0.9λ1, any two adjacent third high-frequency radiation units 311 and any two adjacent fourth high-frequency radiation units in the second high-frequency narrow beam array 300 The line spacing d2 between the 321s is 0.8~0.9λ2, and the line spacing d3 between any two adjacent first low-frequency radiating units and any two adjacent second low-frequency radiating units in the low-frequency narrow beam array is 0.8 ~0.9λ3; λ1 is the center frequency wavelength of the first high frequency narrow beam array 200, λ2 is the center frequency wavelength of the second high frequency narrow beam array 300, and λ3 is the center frequency wavelength of the low frequency narrow beam array. Using the above column spacing and row spacing settings can effectively optimize the vertical sidelobe level of the antenna, optimize the isolation between the arrays, reduce the coupling between the columns, and correspondingly reduce the difficulty and cost of decoupling, and make the antenna's electrical The performance and working reliability are better, and it is conducive to the miniaturization of the antenna.
作为本发明的一个优选实施例,上述第一低频列110的各第一低频辐射单元之间以相等的行间距排列,上述第二低频列120的各第二低频辐射单元之间以相等的行间距排列,上述第一高频列210的各第一高频辐射单元211之间以相等的行间距排列,上述第一高频列210的各第一高频辐射单元211之间以相 等的行间距排列,上述第二高频列310的各第二高频辐射单元311之间以相等的行间距排列,上述第三高频列220的各第三高频辐射单元221之间以相等的行间距排列,上述第四高频列320的各第四高频辐射单元321之间以相等的行间距排列,如此,可以起到进一步优化副瓣电平的作用。As a preferred embodiment of the present invention, the first low-frequency radiation units of the first low-frequency column 110 are arranged with equal row spacing, and the second low-frequency radiation units of the second low-frequency column 120 are arranged with equal rows. The first high-frequency radiation units 211 of the first high-frequency column 210 are arranged with equal row spacing, and the first high-frequency radiation units 211 of the first high-frequency column 210 are arranged with equal rows. The second high-frequency radiation units 311 of the second high-frequency column 310 are arranged at equal row intervals, and the third high-frequency radiation units 221 of the third high-frequency column 220 are arranged in equal rows. The fourth high-frequency radiation unit 321 of the fourth high-frequency column 320 is arranged at an equal row spacing. In this way, the sidelobe level can be further optimized.
作为本发明的一个优选实施例,请一并参照图1至图5,上述第一低频列110的各第一低频辐射单元分别与第一高频列210中的各第一高频辐射单元211同轴嵌套设置,第二低频列120的各第二低频辐射单元分别与第三高频列310中的各第三高频辐射单元311同轴嵌套设置。如此,可具有更加紧凑的结构尺寸,有利于天线的小型化。As a preferred embodiment of the present invention, please refer to FIGS. 1 to 5 together. Each first low-frequency radiation unit of the first low-frequency column 110 is connected to each first high-frequency radiation unit 211 of the first high-frequency column 210. The second low-frequency radiation unit of the second low-frequency column 120 is coaxially nested and the third high-frequency radiation unit 311 of the third high-frequency column 310 is coaxially nested. In this way, it can have a more compact structure size, which is beneficial to the miniaturization of the antenna.
在部分实施例中,请一并参照图1至图5,两两相邻的第一低频辐射单元和第二低频辐射单元并排设置。如此,可以保证两个列之间保持较大的横向间距,以减小两个天线阵列之间的耦合。In some embodiments, please refer to FIGS. 1 to 5 together. The first low-frequency radiating unit and the second low-frequency radiating unit are arranged side by side. In this way, it can be ensured that a large lateral spacing is maintained between the two columns to reduce the coupling between the two antenna arrays.
在部分实施例中,上述第一低频列110中的各第一低频辐射单元与第二低频列120中的各第二低频辐射单元也可以呈错位设置(未示出)。错位设置可以很好的避免低频辐射单元与高频辐射单元在天线反射板(未示出)上的正投影相互之间无干涉,并有利于缩小列间距,进而提高阵列左右边界对称性,改善辐射方向图对称性,使半功率波束宽度的波宽收敛性较好、波宽变窄,前后比和轴向交叉极化也能得到明显改善;还能缩小迎风面积、节省了天面资源,同时有利于天线的小型化设计。In some embodiments, each first low-frequency radiation unit in the first low-frequency column 110 and each second low-frequency radiation unit in the second low-frequency column 120 may also be arranged in a staggered arrangement (not shown). The misalignment setting can avoid interference between the orthographic projections of the low-frequency radiating unit and the high-frequency radiating unit on the antenna reflector (not shown), and is beneficial to reduce the column spacing, thereby improving the symmetry of the left and right boundaries of the array, and improving The symmetry of the radiation pattern enables better convergence of the half-power beam width, narrower width, and significantly improved front-to-rear ratio and axial cross-polarization; it also reduces the windward area and saves sky resources. At the same time, it is conducive to the miniaturized design of the antenna.
在实际应用时,上述低频窄波束阵列中的各第一低频辐射单元和各第二低频辐射单元可采用结构相同的辐射单元,以简化安装。上述第一高频窄波束阵列200中的各第一高频辐射单元211和各第三高频辐射单元221也可以采用结构相同的辐射单元,以简化安装。同理,上述第二高频窄波束阵列300中的各第二高频辐射单元311和各第四高频辐射单元321也可以采用结构相同的辐射单元,以简化安装。In practical applications, each first low-frequency radiation unit and each second low-frequency radiation unit in the above-mentioned low-frequency narrow beam array can adopt radiation units with the same structure to simplify installation. Each first high-frequency radiation unit 211 and each third high-frequency radiation unit 221 in the above-mentioned first high-frequency narrow beam array 200 may also adopt radiation units with the same structure to simplify installation. In the same way, each second high-frequency radiation unit 311 and each fourth high-frequency radiation unit 321 in the second high-frequency narrow beam array 300 may also adopt radiation units with the same structure to simplify installation.
具体在本实施例中,上述第一高频窄波束阵列200的工作频段为1710~2170 MHz,第二高频窄波束阵列300的工作频段为1710~2690MHz,低频窄波束阵列的工作频段为820~960MHz。如此,可以方便的应用于0.9GHz、1.8GHz、2.6GHz频段,实现TD-LTE/TD-LTE-Advanced/5G等系统的高速数据通信。Specifically in this embodiment, the working frequency band of the first high frequency narrow beam array 200 is 1710-2170 MHz, the working frequency band of the second high frequency narrow beam array 300 is 1710-2690 MHz, and the working frequency band of the low frequency narrow beam array is 820. ~960MHz. In this way, it can be conveniently applied to the 0.9GHz, 1.8GHz, and 2.6GHz frequency bands to realize high-speed data communication in systems such as TD-LTE/TD-LTE-Advanced/5G.
以上仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (11)

  1. 一种多频窄波束天线,其特征在于,包括:A multi-frequency narrow beam antenna, which is characterized in that it comprises:
    由多个第一高频辐射单元沿第一参考线形成的第一高频列、由多个第二高频辐射单元沿第二参考线形成的第二高频列、由多个第三高频辐射单元沿第三参考线形成的第三高频列以及由多个第四高频辐射单元沿第四参考线形成的第四高频列;A first high-frequency column formed by a plurality of first high-frequency radiation units along a first reference line, a second high-frequency column formed by a plurality of second high-frequency radiation units along a second reference line, and a plurality of third high-frequency radiation units A third high frequency column formed by the frequency radiation unit along the third reference line and a fourth high frequency column formed by a plurality of fourth high frequency radiation units along the fourth reference line;
    由多个第一低频辐射单元沿所述第一参考线形成的第一低频列以及由多个第二低频辐射单元沿所述第三参考线形成的第二低频列;A first low-frequency column formed by a plurality of first low-frequency radiation units along the first reference line, and a second low-frequency column formed by a plurality of second low-frequency radiation units along the third reference line;
    所述第一参考线、所述第二参考线、所述第三参考线及所述第四参考线依次间隔设置且互相平行,所述第一高频列与所述第二高频列组成第一高频窄波束阵列,所述第三高频列与所述第四高频列组成第二高频窄波束阵列,所述第一低频列与所述第二低频列组成低频窄波束阵列;The first reference line, the second reference line, the third reference line, and the fourth reference line are sequentially spaced apart and parallel to each other, and the first high-frequency column and the second high-frequency column form A first high frequency narrow beam array, the third high frequency column and the fourth high frequency column form a second high frequency narrow beam array, and the first low frequency column and the second low frequency column form a low frequency narrow beam array ;
    所述低频窄波束阵列中包括两两相邻的第一低频辐射单元和第二低频辐射单元,以及与各所述第一低频辐射单元均不相邻的所述第二低频辐射单元,和/或,与各所述第二低频辐射单元均不相邻的所述第一低频辐射单元。The low-frequency narrow beam array includes two adjacent first low-frequency radiation units and second low-frequency radiation units, and the second low-frequency radiation units that are not adjacent to each of the first low-frequency radiation units, and/ Or, the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units.
  2. 根据权利要求1所述的多频窄波束天线,其特征在于,当所述第一低频列中具有与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元时,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元位于所述第一低频列的列首和/或列尾。The multi-frequency narrow-beam antenna according to claim 1, wherein when the first low-frequency column has the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units in the second low-frequency column In the case of a low-frequency radiation unit, the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units in the second low-frequency column is located at the column head and/or column end of the first low-frequency column.
  3. 根据权利要求2所述的多频窄波束天线,其特征在于,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元的数量≤2。The multi-frequency narrow beam antenna according to claim 2, wherein the number of the first low-frequency radiation units that are not adjacent to each of the second low-frequency radiation units in the second low-frequency column is ≤2.
  4. 根据权利要求1所述的多频窄波束天线,其特征在于,当所述第二低频列中具有与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元时,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元位于所述第二低频列的列首和/或列尾。The multi-frequency narrow-beam antenna according to claim 1, wherein when the second low-frequency column has the first low-frequency radiation unit that is not adjacent to each of the first low-frequency radiating units in the first low-frequency column In the case of two low-frequency radiation units, the second low-frequency radiation unit that is not adjacent to each of the first low-frequency radiation units in the first low-frequency column is located at the column head and/or column end of the second low-frequency column.
  5. 根据权利要求4所述的多频窄波束天线,其特征在于,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元的数量≤2。The multi-frequency narrow beam antenna according to claim 4, wherein the number of the second low-frequency radiation units that are not adjacent to each of the first low-frequency radiation units in the first low-frequency column is ≤2.
  6. 根据权利要求1所述的多频窄波束天线,其特征在于,当所述第一低频列中具有与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元,且所述第二低频列中具有与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元时,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元位于列首,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元位于所述第二低频列的列尾。The multi-frequency narrow-beam antenna according to claim 1, wherein when the first low-frequency column has the first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units in the second low-frequency column A low-frequency radiation unit, and when the second low-frequency column has the second low-frequency radiation unit that is not adjacent to each of the first low-frequency radiation units in the first low-frequency column, The first low-frequency radiation unit that is not adjacent to each of the second low-frequency radiation units in the column is located at the head of the column, and the first low-frequency radiation unit that is not adjacent to each of the first low-frequency radiation units in the first low-frequency column Two low-frequency radiation units are located at the end of the second low-frequency column.
  7. 根据权利要求6所述的多频窄波束天线,其特征在于,与所述第二低频列中的各所述第二低频辐射单元不相邻的所述第一低频辐射单元仅1个,与所述第一低频列中的各所述第一低频辐射单元不相邻的所述第二低频辐射单元也仅有1个。The multi-frequency narrow-beam antenna according to claim 6, wherein there is only one first low-frequency radiating unit that is not adjacent to each second low-frequency radiating unit in the second low-frequency column, and There is only one second low-frequency radiation unit that is not adjacent to each of the first low-frequency radiation units in the first low-frequency column.
  8. 根据权利要求1所述的多频窄波束天线,其特征在于,所述第一高频窄波束阵列的列间距D1为0.7~0.9λ1,所述第二高频窄波束阵列的列间距D2为0.7~0.9λ2,所述低频窄波束阵列的列间距D3为0.7~0.9λ3;The multi-frequency narrow beam antenna according to claim 1, wherein the column spacing D1 of the first high frequency narrow beam array is 0.7 to 0.9λ1, and the column spacing D2 of the second high frequency narrow beam array is 0.7~0.9λ2, the column spacing D3 of the low-frequency narrow beam array is 0.7~0.9λ3;
    所述第一高频窄波束阵列中任意相邻两个所述第一高频辐射单元以及任意相邻两个所述第二高频辐射单元之间的行间距d1均为0.8~0.9λ1,所述第二高频窄波束阵列中任意相邻两个所述第三高频辐射单元以及任意相邻两个所述第四高频辐射单元之间的行间距d2均为0.8~0.9λ2,所述低频窄波束阵列中任一相邻两个所述第一低频辐射单元以及任意相邻两个所述第二低频辐射单元之间的行间距d3均为0.8~0.9λ3;The row spacing d1 between any two adjacent first high-frequency radiation units and any two adjacent second high-frequency radiation units in the first high-frequency narrow beam array is 0.8-0.9λ1, The row spacing d2 between any two adjacent third high-frequency radiation units and any two adjacent fourth high-frequency radiation units in the second high-frequency narrow beam array are both 0.8-0.9λ2, The row spacing d3 between any two adjacent first low-frequency radiation units and any two adjacent second low-frequency radiation units in the low-frequency narrow beam array is 0.8-0.9λ3;
    λ1、λ2及λ3分别为所述第一高频窄波束阵列、所述第二高频窄波束阵列及所述低频窄波束阵列的中心频率波长。λ1, λ2, and λ3 are the center frequency wavelengths of the first high frequency narrow beam array, the second high frequency narrow beam array, and the low frequency narrow beam array, respectively.
  9. 根据权利要求1所述的多频窄波束天线,其特征在于,所述第一低频列的各所述第一低频辐射单元分别与所述第一高频列中的各所述第一高频辐射单 元同轴嵌套设置,所述第二低频列的各所述第二低频辐射单元分别与所述第三高频列中的各所述第三高频辐射单元同轴嵌套设置。The multi-frequency narrow-beam antenna according to claim 1, wherein each of the first low-frequency radiation units in the first low-frequency column is connected to each of the first high-frequency radiation units in the first high-frequency column. The radiation units are coaxially nested, and each of the second low-frequency radiation units in the second low-frequency column is coaxially nested with each of the third high-frequency radiation units in the third high-frequency column.
  10. 根据权利要求1所述的多频窄波束天线,其特征在于,两两相邻的所述第一低频辐射单元和所述第二低频辐射单元并排设置,或者,所述第一低频列中的各所述第一低频辐射单元与所述第二低频列中的各所述第二低频辐射单元错位设置。The multi-frequency narrow-beam antenna according to claim 1, wherein the first low-frequency radiation unit and the second low-frequency radiation unit that are adjacent to each other are arranged side by side, or, in the first low-frequency column Each of the first low-frequency radiation units and each of the second low-frequency radiation units in the second low-frequency column are arranged in a staggered manner.
  11. 根据权利要求1至10中任意一项所述的多频窄波束天线,其特征在于,所述第一高频窄波束阵列的工作频段为1710~2170MHz,所述第二高频窄波束阵列的工作频段为1710~2690MHz,所述低频窄波束阵列的工作频段为820~960MHz。The multi-frequency narrow beam antenna according to any one of claims 1 to 10, wherein the working frequency band of the first high frequency narrow beam array is 1710-2170 MHz, and the second high frequency narrow beam array The working frequency band is 1710-2690 MHz, and the working frequency band of the low-frequency narrow beam array is 820-960 MHz.
PCT/CN2019/115390 2019-07-02 2019-11-04 Multi-frequency narrow beam antenna WO2021000476A1 (en)

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CN110265795A (en) * 2019-07-02 2019-09-20 京信通信技术(广州)有限公司 Multifrequency narrow beam antenna
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