Title:
CIRCULARLY POLARIZED SUBSTRATE-INTEGRATED WAVEGUIDE ANTENNA, ARRAY ANTENNA AND ANTENNA SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/151551
Kind Code:
A1
Abstract:
The present invention provides a circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system, comprising a first metal layer, a medium layer and a second metal layer that are successively disposed. The first metal layer has a first through-hole array and three etched rectangular gaps, the rectangular gaps being used for regulating circularly polarized radiation parameters; the medium layer is made of dielectric substances, and has a second through-hole array matching the first through-hole and a first feed through-hole; the second metal layer is connected to the ground terminal, and has a third through-hole array which is the same as the first through-hole array and a second feed through-hole matching the first feed through-hole; the first through-hole array, the second through-hole array and the third through-hole array are used for forming a limit cavity to limit electromagnetic wave together with the first metal layer and the second metal layer. Hence, the circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system according to the present invention can form a broader axial ratio bandwidth and realize a low profile.
Inventors:
SU DAOYI (CN)
Application Number:
PCT/CN2020/072283
Publication Date:
July 30, 2020
Filing Date:
January 15, 2020
Export Citation:
Assignee:
GUANGDONG MIKWAVE COMMUNICATION TECH LTD (CN)
International Classes:
H01Q1/36; H01Q1/38; H01Q1/50
Foreign References:
| CN109786943A | 2019-05-21 | |||
| CN108666750A | 2018-10-16 | |||
| CN103606743A | 2014-02-26 | |||
| US5661494A | 1997-08-26 |
Other References:
CHUNG KWOK L; LI YANGSHENG; ZHANG CHUNWEI: "Broadband artistic antenna array composed of circularly-polarized Wang-shaped patch elements", AEU - INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, vol. 74, 16 February 2017 (2017-02-16), pages 116 - 122, XP029945680, ISSN: 1434-8411, DOI: 10.1016/j.aeue.2017.02.006
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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