Broadband and High-efficiency Linear Polarization Converter Based on Reflective Metasurface

Yaxian Guo,1

Jianchun Xu,1,2,*,Email

Chuwen Lan1,2 

Ke Bi1

1State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876, China
2Beijing University of Posts and Telecommunications Research Institute, Shenzhen, 518057, China

Abstract

A linear polarization converter based on metasurface operating in reflection mode was demonstrated. Simulated results indicate that the polarization conversion ratio (PCR) of the polarization converter is more than 90% in the range of 4.73-10.93 GHz. The experiment results are well consistent with the simulated results. Moreover, the bandwidth of linear polarization converter can be tuned by metal patch length and T-shaped slot width. The converter has angular stability below 36° and polarization insensitivity under the x- and y-polarized incidence waves, which makes it promising for applications in orbital angular momentum beam generators and beam steering systems.

Broadband and High-efficiency Linear Polarization Converter Based on Reflective Metasurface