Title:
HIGH-GAIN AND LOW-RCS BROADBAND CIRCULARLY POLARIZED METASURFACE ANTENNA BASED ON NOVEL SEQUENTIAL ROTATION FEEDING NETWORK
Document Type and Number:
WIPO Patent Application WO/2022/262876
Kind Code:
A1
Abstract:
A high-gain and low-RCS broadband circularly polarized metasurface antenna based on a novel sequential rotation feeding network, comprising three layers of dielectric substrates, five metal layers, and three resistors, which are described, from top to bottom, as: a first metal layer, a first dielectric substrate, a second metal layer, a second dielectric substrate, a third metal layer, a fourth metal layer, a third dielectric substrate, and a fifth metal layer. The first three metal layers are all metasurface arrays, each of which consists of 10*10 metal patches; a fourth metal and a third metal constitute a resonant cavity by a distance; the fourth metal layer has four slits that are rotationally symmetric; the fifth metal layer is a hybrid feeding network consisting of microstrips, comprises three equal power dividers and the three resistors, and divides one port into four ports having phase differences of 0 degrees, 90 degrees, 180 degrees and 270 degrees and having broadband characteristics; and the four ports are powered by the four slits, such that the metasurface arrays radiate circularly polarized waves. The present invention improves the bandwidth and gain of circularly polarized wave radiation on the premise of low RCS.
Inventors:
XU FENG (CN)
ZHAO XIAOFEI (CN)
ZHAO XIAOFEI (CN)
Application Number:
PCT/CN2022/110444
Publication Date:
December 22, 2022
Filing Date:
August 05, 2022
Export Citation:
Assignee:
UNIV NANJING POSTS & TELECOMMUNICATIONS (CN)
International Classes:
H01Q1/38; H01Q21/06; H01Q1/50; H01Q3/30; H01Q3/34; H01Q15/00; H01Q21/00
Foreign References:
| CN107834176A | 2018-03-23 | |||
| US20110128201A1 | 2011-06-02 | |||
| CN104852158A | 2015-08-19 | |||
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| CN111430891A | 2020-07-17 | |||
| CN112615148A | 2021-04-06 | |||
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| US5661494A | 1997-08-26 |
Other References:
HE YAN, DENG CHANGJIANG; FENG ZHENGHE; YANG HU: "Compact dual-band circularly polarized microstrip patch array", GUOFANG KE-JI DAXUE XUEBAO - JOURNAL OF NATIONAL UNIVERSITY OFDEFENSE TECHNOLOGY, GAI KAN BIANJIBU, CHANGSHA, CN, vol. 38, no. 6, 28 December 2016 (2016-12-28), CN , pages 186 - 190, XP093015791, ISSN: 1001-2486, DOI: 10.11887/j.cn.201606030
YIN JILIANG: "Design of Ku-band Wide-angle Scanning Circularly Polarized Microstrip Array Antenna", ELECTRONIC COMPONENTS AND MATERIALS, CHENGDU HONGMING DIANZHI GUFEN YOUXIAN GONGSI, CN, vol. 36, no. 5, 31 May 2017 (2017-05-31), CN , pages 81 - 84, XP093015795, ISSN: 1001-2028, DOI: 10.14106/j.cnki.1001-2028.2017.05.017
YIN JILIANG: "Design of Ku-band Wide-angle Scanning Circularly Polarized Microstrip Array Antenna", ELECTRONIC COMPONENTS AND MATERIALS, CHENGDU HONGMING DIANZHI GUFEN YOUXIAN GONGSI, CN, vol. 36, no. 5, 31 May 2017 (2017-05-31), CN , pages 81 - 84, XP093015795, ISSN: 1001-2028, DOI: 10.14106/j.cnki.1001-2028.2017.05.017
Attorney, Agent or Firm:
NANJING ZHENGLIAN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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