Dual-band polarization angle independent 90° polarization rotator using chiral metamaterial

Hailin Cao; Huan Chen; Xiaodong Wu; Yuwei Pi; Junjie Liu; Hang Xu; Xiaoheng Tan; Jianmei Lei; Xian-Hua Han

doi:10.1587/elex.13.20160583

LETTER

Dual-band polarization angle independent 90° polarization rotator using chiral metamaterial

Hailin Cao, Huan Chen, Xiaodong Wu, Yuwei Pi, Junjie Liu, Hang Xu, Xiaoheng Tan, Jianmei Lei, Xian-Hua Han

Author information

Hailin Cao
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University
Huan Chen
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
Xiaodong Wu
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
Yuwei Pi
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
Junjie Liu
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
Hang Xu
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
Xiaoheng Tan
Laboratory of Aerocraft Tracking, Telemetering & Command and Communication (Ministry of Education), Chongqing University
Jianmei Lei
National Motor Vehicle Quality Supervision and Inspection Center, China Automotive Engineering Research Institute Co., Ltd
Xian-Hua Han
The Artificial Intelligence Research Center, National Institute of Adavance Industrial Science and Technology

Keywords: chiral metamaterials, optical activity, ellipticity, polarization, C4 symmetry

JOURNAL FREE ACCESS

2016 Volume 13 Issue 15 Pages 20160583

DOI https://doi.org/10.1587/elex.13.20160583

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Abstract

The polarization angle-independent, dual-band, 90° polarization rotator presented in this paper consisted of a bilayered chiral metamaterial composed of twisted capacity-loaded I-shaped electric field-coupled resonators in C4 symmetry. Simulated and measured results consistently demonstrated that the rotator exhibited extremely low loss and high polarization ratio under dual-band conditions. We also systematically investigated the dependence of the electromagnetic response of the loaded structure on the geometric parameters. The proposed simple, easily fabricated model of a chiral metamaterial may be used in further polarization rotator applications.

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