Design of a wideband reflective linear polarization converter based on the ladder-shaped structure metasurface

被引：43
作者：
Fang, Cong [1 ]
Cheng, Yongzhi [2 ]
He, Zhiqiang [1 ]
Zhao, Jingcheng [3 ]
Gong, Rongzhou [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
[2] Wuhan Univ Sci & Technol, Sch Informat Sci & Engn, Wuhan 430081, Peoples R China
[3] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
来源：
OPTIK | 2017年 / 137卷
基金：
中国国家自然科学基金;
关键词：
Ladder-shaped structure; Metasurface; Polarization conversion; CIRCULAR POLARIZER; METAMATERIAL;
D O I：
10.1016/j.ijleo.2017.03.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a ladder-shaped structure metasurface is proposed and investigated theoretically and experimentally, which can efficiently convert a linear polarized electromagnetic (EM) wave to its orthogonal component in a wideband range. The wideband reflective polarization convertibility is resulted from three resonance modes generated by the ladder shaped structure MM for the normal incident waves. The mechanism of high-efficiency reflective polarization conversion is illustrated by surface current distribution and the destructive interference theory. The experimental measurement results show that the average polarization conversion ratio (PCR) is greater than 90% from 6.9 to 15.4 GHz, which are in good agreement with the numerical simulations and theoretical predictions. The designed metasurface possesses the merits of wideband and high-efficiency, and thus has great application values in novel polarization-control devices. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：148 / 155
页数：8
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