Transmission Characteristics of a Twisted Radio Wave Based on Circular Traveling-Wave Antenna

被引：191

作者：

Zheng, Shilie ^{[1
]}

Hui, Xiaonan ^{[1
]}

Jin, Xiaofeng ^{[1
]}

Chi, Hao ^{[1
]}

Zhang, Xianmin ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou 310027, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2015年 / 63卷 / 04期

关键词：

Circular traveling-wave antenna; orbital angular momentum (OAM); spin angular momentum (SAM); transmission characteristics; twisted wave; ORBITAL ANGULAR-MOMENTUM; LOOP ANTENNAS;

D O I：

10.1109/TAP.2015.2393885

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：

A traveling-wave circular loop antenna with its phase distribution along the circle of l phi is demonstrated to generate the twisted radio wave. Theoretical formulations of its radiation fields are deduced in the cylindrical coordinate system and used to analyze its transmission characteristics, such as the radiation patterns, the evolution of the polarization states, and the angular momentum modes including the orbital angular momentum (OAM) modes and the spin angular momentum (SAM) modes. The prototype of a practical configuration for such antenna is proposed and conducted to validate the theoretical results. This theoretical analysis is applicable not only to radio waves but also to the whole electromagnetic spectrum.

引用

页码：1530 / 1536

页数：7

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