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Highly integrated dual-polarized base station array antenna suitable for 2/3/4/5G communication

An array antenna, highly integrated technology, applied in the antenna unit combination, antenna, antenna coupling and other directions with different polarization directions, can solve the problems of increased antenna design difficulty, increased mutual influence of antenna coupling, etc., to achieve compact structure, stable gain, The effect of lobe width stabilization

Active Publication Date: 2021-03-23
中国电波传播研究所
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, due to the layered design of the antenna, the coupling interaction between different frequency bands of the antenna will be greatly increased, and the design difficulty of antennas in different frequency bands will increase exponentially

Method used

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  • Highly integrated dual-polarized base station array antenna suitable for 2/3/4/5G communication
  • Highly integrated dual-polarized base station array antenna suitable for 2/3/4/5G communication
  • Highly integrated dual-polarized base station array antenna suitable for 2/3/4/5G communication

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Embodiment 1

[0025] Example 1, such as figure 1 As shown, this embodiment discloses a highly integrated dual-polarized base station array antenna suitable for 2 / 3 / 4 / 5G communications, including a dielectric substrate, the front of the dielectric substrate is a reflective surface 7 (floor), and the reflective surface uses The antenna obtains a stable directional radiation pattern. The low-frequency feed network and high-frequency feed network are printed on the reverse side. There are 2×2 low-frequency array antenna units 1 and 3×3 high-frequency array antenna units 2 on the reflective surface. In order to ensure that the array antenna has a narrow beam in the vertical direction, the horizontal Directional beam scanning function, the antenna spacing of the array antenna is 65mm in the vertical direction, and the antenna spacing in the horizontal direction is 56mm. The low-frequency antenna unit and the high-frequency antenna unit adopt a layered and nested structure, the low-frequency ante...

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Abstract

The invention discloses a highly-integrated dual-polarized base station array antenna suitable for 2 / 3 / 4 / 5G communication. The antenna is characterized by comprising a dielectric substrate; the frontsurface of the dielectric substrate is a reflecting surface; a low-frequency feed network and a high-frequency feed network are printed on the back surface of the dielectric substrate; n*n low-frequency array antenna units and N*N high-frequency array antenna units are arranged on the reflecting surface; and the low-frequency array antenna units and the high-frequency array antenna units are of up-down layered nested structures. The array antenna disclosed by the invention has the advantages of wide frequency band, double frequency bands and high integration; and the directional diagram, the gain and the lobe width of the array antenna are stable. Due to the fact that different array elements are designed in an up-down layered nesting mode, the structure of the array antenna is compact, and the size and profile of the array antenna are greatly reduced.

Description

technical field [0001] The invention belongs to the field of array antennas, in particular to a highly integrated wide-band, dual-band, and dual-polarized base station array antenna suitable for 2 / 3 / 4 / 5G communications in the field. Background technique [0002] With the development of wireless communication technology, base station communication technology has gradually evolved from the past 2G, 3G, and 4G to the current 5G, and base station antennas are facing increasingly severe technical challenges. First of all, due to the coexistence of different communication standards, the communication frequency band is becoming more and more crowded. At present, the domestic 2 / 3 / 4G communication frequency bands are concentrated in two wide frequency bands of 0.69-0.96 GHz and 1.71-2.69 GHz. The domestic 5G communication frequency bands are in the 3.3-3.6 GHz and 4.8-5 GHz frequency bands. So many and wide frequency bands impose strict requirements on antennas, and it is difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/24H01Q1/52
CPCH01Q21/24H01Q1/523
Inventor 文乐虎高式昌杨清凌杜鹏
Owner 中国电波传播研究所
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