文献类型：期刊文献

英文题名：Simultaneous Generation of Linear- and Circular-Polarization Vortex Based on Symmetrical Metallic Quasi-Metasurface

作者：Zhu, Daoheng[1];Yang, Xiaokun[2];Han, Lingbo[1];Yan, Jian[1]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Jiangxi Agr Univ, Sch Software, Nanchang 330045, Peoples R China

年份：2025

卷号：17

期号：2

外文期刊名：SYMMETRY-BASEL

收录：SCI-EXPANDED(收录号：WOS:001431813400001)、、Scopus(收录号：2-s2.0-85219024252)、WOS

基金：This research was funded by the scientific research start-up funds of Guangdong Ocean University, grant number 060302112314 and 060302112317, and the APC was funded by the scientific research funds of Guangdong Ocean University, grant number KJ20241046.

语种：英文

外文关键词：quasi-metasurface; metallic column; linearly polarized; circularly polarized; vortex waves; wavefront difference

外文摘要：Through comprehensive research on the working principles of the generalized Snell's law, this paper presents a quasi-metasurface based on the theory of wavefront difference. The proposed structure successfully demonstrates the vortex manipulation of both linearly polarized waves and circularly polarized waves. The symmetrical metallic column design modulates the phase of one period at 18 GHz with a reflection loss of less than -0.5 dB. By decomposing circularly polarized waves into a set of mutually orthogonal linearly polarized waves with a phase difference of pi/2, a simple synthesis method is proposed to convert existing linearly polarized waves into circularly polarized waves, thereby demonstrating vortex wave effects. The quasi-metasurface exhibits excellent performance, and the vortex characteristics of both linearly and circularly polarized waves are verified through simulations.