Title:
ULTRA-WIDEBAND HIGH-GAIN LENS ANTENNA BASED ON THREE-DIMENSIONAL IMPEDANCE MATCHING LENS AND DESIGN METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/012715
Kind Code:
A1
Abstract:
Disclosed are an ultra-wideband high-gain lens antenna based on a three-dimensional impedance matching lens and a design method therefor. The lens antenna comprises a three-dimensional impedance matching lens, a double-ridged horn antenna feed source, and a waveguide extension section. An opening of the double-ridged horn antenna is connected to the waveguide extension section, the three-dimensional impedance matching lens is embedded in the waveguide extension section, and the length of the waveguide extension section is equal to the thickness of the three-dimensional impedance matching lens so as to completely cover side edges of the three-dimensional impedance matching lens. Coherent electromagnetic waves emitted from a high-frequency signal source radiate spherical waves through the double-ridged horn antenna, are converted into non-uniform plane waves with the equiphase surface being orthogonal to the propagation direction by means of the three-dimensional impedance matching lens fixed in the waveguide extension section at the horn antenna opening surface, and radiate to a free space. The lens antenna has the advantages of easy design, simple structure, low cost, wide working band, high gain and low return loss, can replace the conventional uniform medium lens antenna, and has a high application value in many fields.
Inventors:
JIANG WEIXIANG (CN)
TIAN HANWEI (CN)
LI XIN (CN)
CUI TIEJUN (CN)
TIAN HANWEI (CN)
LI XIN (CN)
CUI TIEJUN (CN)
Application Number:
PCT/CN2020/083888
Publication Date:
January 28, 2021
Filing Date:
April 09, 2020
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
H01Q19/08
Foreign References:
| CN110380230A | 2019-10-25 | |||
| CN104466415A | 2015-03-25 | |||
| JP2012175680A | 2012-09-10 | |||
| CN107369911A | 2017-11-21 |
Other References:
ZHAO JIANBEI: "Research on Characteristics of Ultra Wideband TEM Ridged Horn Antenna", CHINESE MASTER'S THESES FULL-TEXT DATABASE, 1 June 2013 (2013-06-01), pages 1 - 70, XP055775540
YANG, KANG: "Design Method of Ultra-wideband Double-ridged Horn Antenna", CHINA MASTER’S THESES FULL-TEXT DATABASE, 15 March 2016 (2016-03-15), pages 1 - 78, XP009525720
YANG, KANG: "Design Method of Ultra-wideband Double-ridged Horn Antenna", CHINA MASTER’S THESES FULL-TEXT DATABASE, 15 March 2016 (2016-03-15), pages 1 - 78, XP009525720
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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