Title:
METHOD FOR SYNTHESIZING VORTEX ELECTROMAGNETIC FIELD HAVING HIGH ORBITAL ANGULAR MOMENTUM MODE NUMBER
Document Type and Number:
WIPO Patent Application WO/2022/007148
Kind Code:
A1
Abstract:
The present invention relates to a method for synthesizing a vortex electromagnetic field having a high orbital angular momentum mode number. Specifically, provided is a method for synthesizing a vortex electromagnetic field as follows: forming a circular antenna array by N antenna units, and synthesizing a vortex electromagnetic field by rotating the circular antenna array and adjusting the phase of each antenna unit, N being an integer greater than or equal to 1. According to the method of the present invention, a synthetic vortex electromagnetic field having a target number of modes can be generated as needed. Given a small number of antennas, the vortex electromagnetic field having a high mode number is directly synthesized by means of rotation of the antenna array and adjustment of the phase of each antenna unit, thereby increasing the resolution of an imaging system in the azimuth direction. The vortex electromagnetic field synthesized by the method of the present invention not only facilitates super-resolution imaging, but also has significantly improved modal purity. The present method has good application prospects in the fields such as super-resolution biomedical imaging, radar imaging, and wireless communication.
Inventors:
JIANG HAIBO (CN)
CHEN ZIJUN (CN)
GONG YUBIN (CN)
YANG YANG (CN)
WANG SHAOMENG (CN)
GUI CHENGBO (CN)
FU JIANGNAN (CN)
HE XINYANG (CN)
CHEN ZIJUN (CN)
GONG YUBIN (CN)
YANG YANG (CN)
WANG SHAOMENG (CN)
GUI CHENGBO (CN)
FU JIANGNAN (CN)
HE XINYANG (CN)
Application Number:
PCT/CN2020/112154
Publication Date:
January 13, 2022
Filing Date:
August 28, 2020
Export Citation:
Assignee:
CHENGDU INST BIOLOGY CAS (CN)
UNIV ELECTRONIC SCI & TECH CHINA (CN)
UNIV ELECTRONIC SCI & TECH CHINA (CN)
International Classes:
H01Q3/32
Foreign References:
| CN108767474A | 2018-11-06 | |||
| CN107645068A | 2018-01-30 | |||
| CN109755765A | 2019-05-14 | |||
| US20190341694A1 | 2019-11-07 | |||
| CN109167171A | 2019-01-08 | |||
| CN109936391A | 2019-06-25 |
Other References:
LIU KANG; LIU HONGYAN; SHA WEI E. I.; CHENG YONGQIANG; WANG HONGQIANG: "Backward Scattering of Electrically Large Standard Objects Illuminated by OAM Beams", IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, IEEE, PISCATAWAY, NJ, US, vol. 19, no. 7, 9 May 2020 (2020-05-09), US , pages 1167 - 1171, XP011797810, ISSN: 1536-1225, DOI: 10.1109/LAWP.2020.2993687
See also references of EP 3965228A4
See also references of EP 3965228A4
Attorney, Agent or Firm:
GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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