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1. WO2022007148 - METHOD FOR SYNTHESIZING VORTEX ELECTROMAGNETIC FIELD HAVING HIGH ORBITAL ANGULAR MOMENTUM MODE NUMBER

Publication Number WO/2022/007148
Publication Date 13.01.2022
International Application No. PCT/CN2020/112154
International Filing Date 28.08.2020
IPC
H01Q 3/32 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
30varying the phase
32by mechanical means
CPC
H01Q 1/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
24with receiving set
H01Q 15/0086
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
15Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
0006Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
0086said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
H01Q 21/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
H01Q 21/0006
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
0006Particular feeding systems
H01Q 21/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
06Arrays of individually energised antenna units similarly polarised and spaced apart
20the units being spaced along or adjacent to a curvilinear path
H01Q 3/267
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
267Phased-array testing or checking devices
Applicants
  • 中国科学院成都生物研究所 CHENGDU INSTITUTE OF BIOLOGY, CHINESE ACADEMY OF SCIENCES [CN]/[CN]
  • 电子科技大学 UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA [CN]/[CN]
Inventors
  • 蒋海波 JIANG, Haibo
  • 陈子君 CHEN, Zijun
  • 宫玉彬 GONG, Yubin
  • 杨阳 YANG, Yang
  • 王少萌 WANG, Shaomeng
  • 桂承波 GUI, Chengbo
  • 付江南 FU, Jiangnan
  • 何欣洋 HE, Xinyang
Agents
  • 成都高远知识产权代理事务所(普通合伙) GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP)
Priority Data
202010641809.806.07.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR SYNTHESIZING VORTEX ELECTROMAGNETIC FIELD HAVING HIGH ORBITAL ANGULAR MOMENTUM MODE NUMBER
(FR) PROCÉDÉ DE SYNTHÈSE D'UN CHAMP ÉLECTROMAGNÉTIQUE TOURBILLONNAIRE À GRAND NOMBRE DE MODES DE MOMENT ANGULAIRE ORBITAL
(ZH) 一种合成高轨道角动量模式数的涡旋电磁场的方法
Abstract
(EN) 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.
(FR) La présente invention concerne un procédé de synthèse d'un champ électromagnétique tourbillonnaire ayant un grand nombre de modes de moment angulaire orbital. Plus précisément, l'invention concerne un procédé de synthèse d'un champ électromagnétique tourbillonnaire de la façon suivante : formation d'un réseau d'antennes circulaire par N unités d'antenne, et synthèse d'un champ électromagnétique tourbillonnaire par rotation du réseau d'antennes circulaire et ajustement de la phase de chaque unité d'antenne, N étant un entier supérieur ou égal à 1. Selon le procédé de la présente invention, un champ électromagnétique tourbillonnaire synthétique ayant un nombre cible de modes peut être généré selon les besoins. Étant donné un petit nombre d'antennes, le champ électromagnétique tourbillonnaire à grand nombre de modes est directement synthétisé au moyen de la rotation du réseau d'antennes et de l'ajustement de la phase de chaque unité d'antenne, ce qui permet d'augmenter la résolution d'un système d'imagerie dans la direction azimutale. Le champ électromagnétique tourbillonnaire synthétisé par le procédé de la présente invention non seulement facilite l'imagerie à super-résolution, mais en outre présente une pureté modale considérablement améliorée. Le présent procédé présente de bonnes perspectives d'application dans les domaines tels que l'imagerie biomédicale à super-résolution, l'imagerie radar et les communications sans fil.
(ZH) 本发明涉及一种合成高轨道角动量模式数的涡旋电磁场的方法。具体提供了以下合成涡旋电磁场的方法:将N个天线单元构成圆型天线阵列,通过旋转圆型天线阵列、调控每个天线单元的相位,合成涡旋电磁场,N为大于等于1的整数。利用本发明的方法,能够根据需要产生目标模式数的合成涡旋电磁场,在较少的天线数量下,通过对天线阵列的旋转与对天线单元的相位调控,直接合成高模式数的涡旋电磁场,增加成像系统在方位向上的分辨率。利用本发明的方法合成得到的涡旋电磁场不仅有利于实现超分辨成像,还具有显著提高的模态纯度,在超分辨生物医学成像、雷达成像、无线通信等领域中具有非常好的应用前景。
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