Title:
MILLIMETER-WAVE WIDE-ANGLE SCANNING PHASED-ARRAY ANTENNA BASED ON ELEMENT BEAM HETEROGENEITY
Document Type and Number:
WIPO Patent Application WO/2023/273624
Kind Code:
A1
Abstract:
Provided in the present invention is a non-inclined beam planar aperture array element, comprising an upper-layer substrate, which is provided with a radiation structure, wherein the radiation structure comprises a metal back cavity, a metal patch of a topological structure, a first parasitic patch and a tuning gap; a metal floor, which is located on a bottom face of the upper-layer substrate, and is provided with a coupling gap; a middle-layer substrate, which is located below the metal floor; and a bottom-layer substrate, wherein a bottom face of the bottom-layer substrate is provided with a microstrip line that forms a feed structure with the coupling gap, and the side of the microstrip line that is close to the coupling gap is provided with a tuning branch. Further provided are an inclined beam planar aperture array element, and a phased-array antenna composed of a non-inclined beam planar aperture array element and an inclined beam planar aperture array element. Elements having different directional diagrams are introduced to form an array, such that array elements have different directional diagrams, thereby providing a larger degree of design freedom for a phased array, and achieving a more excellent scanning performance.
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Inventors:
XUE QUAN (CN)
CHE WENQUAN (CN)
LIAO SHAOWEI (CN)
XIAO JIN (CN)
CHE WENQUAN (CN)
LIAO SHAOWEI (CN)
XIAO JIN (CN)
Application Number:
PCT/CN2022/092091
Publication Date:
January 05, 2023
Filing Date:
May 11, 2022
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
H01Q3/34; H01Q13/10; H01Q21/24
Foreign References:
| CN113506988A | 2021-10-15 | |||
| CN1534829A | 2004-10-06 | |||
| CN112103649A | 2020-12-18 | |||
| CN104051867A | 2014-09-17 | |||
| CN109541551A | 2019-03-29 | |||
| CN109643839A | 2019-04-16 | |||
| CN111819735A | 2020-10-23 |
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
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