Generation of Plane Spiral OAM Waves Using Traveling-Wave Circular Slot Antenna

被引：105

作者：

Zhang, Zhuofan ^{[1
]}

Zheng, Shilie ^{[1
]}

Jin, Xiaofeng ^{[1
]}

Chi, Hao ^{[1
]}

Zhang, Xianmin ^{[1
]}

机构：

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

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

基金：

中国国家自然科学基金;

关键词：

Plane spiral orbital angular momentum; transverse propagation; traveling-wave antenna; ORBITAL ANGULAR-MOMENTUM; LIGHT; COMMUNICATION; BEAMS;

D O I：

10.1109/LAWP.2016.2552227

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：

Plane spiral orbital angular momentum (OAM) wave is a new form of OAM-carrying electromagnetic wave that propagates along the transverse direction. A traveling-wave circular slot antenna that can generate plane spiral OAM waves is developed and experimentally demonstrated in this letter. The antenna is excited by a 90 degrees hybrid coupler. In order to ensure that the OAM waves are propagating along the transverse plane, a ring horn is added outside the antenna. A prototype with OAM states l = +/- 3 for 10-GHz operation is fabricated and measured. The near-field phase distributions clearly indicate the azimuth phase shifting, and the radiation patterns show the characteristic of transverse propagation, respectively. The proposed antenna provides a novel approach to implement an OAM wireless communication link that has no phase singularity or divergence problem.

引用

页码：8 / 11

页数：4

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