Asymmetric Transmission of OAM Vortex Waves by Cylindrical Janus Metasurface

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2023-08-08 DOI:10.1109/LAWP.2023.3303222

Le Jiang;Shixing Yu;Na Kou

引用次数: 1

Abstract

In this letter, the asymmetric transmission of orbital angular momentum orbital angular momentum (OAM) vortex waves is realized by a cylindrical Janus metasurface. It can generate orbital angular momentum vortex waves with different modes at two opposite propagation directions. Three-layered split rings structure with sequentially 45° rotation is designed to realize the asymmetric transmission and phase modulation at the same time, which can provide one linear polarization conversion of EM wave and a continuous 360° transmission phase shift. We also propose a unit cell distribution scheme for the cylindrical Janus metasurfaces to improve the aperture efficiency. Both simulated and measured results verify the effectiveness of the proposed design. The proposed conformal Janus metasurface can provide theoretical references for applications of vortex electromagnetic communication especially in conformal platforms.

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圆柱Janus超表面对OAM涡旋波的不对称传输

本文利用圆柱Janus超表面实现了轨道角动量(OAM)涡旋波的非对称传输。它可以在两个相反的传播方向上产生不同模式的轨道角动量涡波。设计了顺序旋转45°的三层分裂环结构，同时实现了电磁波的非对称传输和相位调制，可以实现电磁波的一次线性极化转换和连续360°传输相移。我们还提出了一种用于圆柱Janus超表面的单胞分布方案，以提高孔径效率。仿真和实测结果均验证了该设计的有效性。所提出的保角Janus超表面可为涡旋电磁通信特别是保角平台的应用提供理论参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.