Generation and Transmission of OAM-Carrying Vortex Beams Using Circular Antenna Array

被引：96

作者：

Gong, Yinghui ^{[1
,2
]}

Wang, Robert ^{[1
]}

Deng, Yunkai ^{[1
]}

Zhang, Bowen ^{[1
,2
]}

Wang, Nan ^{[1
]}

Li, Ning ^{[1
]}

Wang, Pei ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Elect, Spaceborne Microwave Remote Sensing Syst Dept, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2017年 / 65卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Circular antenna array; multiplexing; orbital angular momentum (OAM); vortex beams; ORBITAL ANGULAR-MOMENTUM; WAVES; LIGHT;

D O I：

10.1109/TAP.2017.2695526

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electromagnetic orbital angular momentum (OAM) has attracted a lot of interest recently in the field of communication systems. OAM-carrying radio beams can be generated and detected by several devices. In this paper, we use a circular phased antenna array to generate OAM-carrying beams that possess ring-shaped intensities and helical phase fronts. We also propose and validate a communication system that uses OAM-based multiplexing. A circular antenna array is used to generate the superimposed OAM mode by using appropriate excitation settings. The transmission characteristics of OAM modes with respect to different transmission distances are investigated. We find that the OAM-based multiplexing technology is only feasible within a certain distance range. The obtained experimental results are consistent with simulation and numerical calculation results.

引用

页码：2940 / 2949

页数：10

共 29 条

[1] ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES [J].