ARRAY ANTENNA AND COMMUNICATION DEVICE

WIPO Patent Application WO/2021/136187

A1

The present application discloses an array antenna, comprising a metal reflector, at least one first antenna unit, and at least one second antenna unit. The operating frequency of the second antenna unit is lower than that of the first antenna unit, and the first antenna unit and the second antenna unit are disposed on the metal reflector. The first antenna unit comprises a first transmission line having a first winding structure, and a first radiator. The first transmission line has a first end connected to a first signal feed inlet on the metal reflector, and a second end connected to the first radiator. The first transmission line forms a first equivalent inductor and a first parasitic capacitor by means of the first winding structure. The first equivalent inductor and the first parasitic capacitor constitute a first resonant circuit. The difference between the self-resonant frequency of the first resonant circuit and the operating frequency of the second antenna unit is within a preset range. The configuration constitutes a band-stop filter pertaining to the operating frequency of the second antenna unit, suppresses common-mode induced current, and alleviates the problem of secondary radiation.

LUO BING (CN)
QIN WENFEI (CN)
LI JIANPING (CN)
LIAO ZHIQIANG (CN)

PCT/CN2020/140206

July 08, 2021

December 28, 2020

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HUAWEI TECH CO LTD (CN)

H01Q1/36

WO2017035726A1

2017-03-09

CN105960737A	2016-09-21
CN105281031A	2016-01-27
CN208226099U	2018-12-11
US20140253378A1	2014-09-11

SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)

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