DESIGN OF WIDEBAND VORTEX REFLECTARRAY BASED ON PANCHARATNAM BERRY METASURFACE

被引：3
作者：
Guo, Xiaobin [1 ]
Li, Xiuping
Huang, Yuhan
Luo, Kai
Zhu, Hua
Akram, Zaid
Qi, Zihang
机构：
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
来源：
2021 IEEE MTT-S INTERNATIONAL WIRELESS SYMPOSIUM (IWS 2021) | 2021年
基金：
中国国家自然科学基金;
关键词：
wideband; vortex; orbital angular momentum (OAM); reflectarray; metasurface; Pancharatnam-Berry (PB); ORBITAL-ANGULAR-MOMENTUM;
D O I：
10.1109/IWS52775.2021.9499601
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：
In this paper, a design of a wideband vortex reflectarray based on Pancharatnam-Berry (PB) metasurface is proposed, which consists of 20 x20 elements. The patch is composed of an I-ring inlaid with an opening ring and is printed on the surface of the substrate. The other side of the substrate consist of a foam layer and a metal ground. A 360 degrees reflection phase is achieved under the circularly polarized (CP) incidence. The simulation results show that the vortex beam carrying l=+2 orbital angular momentum (OAM) mode is successfully generated from 20-40 GHz, with an OAM bandwidth of 66.6%.
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页数：3
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