Versatile Cross‐Polarization Conversion Chiral Metasurface for Linear and Circular Polarizations
Peng Fei, Guy A. E. Vandenbosch, Weihua Guo, Xin Wen, Di Xiong, Wei Hu, Qi Zheng, Xing Chen
Abstract
Abstract In this work, first the necessary conditions for a versatile cross‐polarization conversion meta‐atom that operates both for linear and circular cross polarizations are discussed. Based on these, a versatile chiral metasurface cross‐polarization converter is proposed. The correspondence between its physical geometry and polarization domain characteristics is studied. To verify the design concept, a prototype is fabricated and measured. An effective vertical and horizontal linear cross‐polarization conversion is achieved from 29.3 to 38.8 GHz (27.90%) and from 34.0 to 36.6 GHz (7.36%), respectively. Furthermore, the proposed converter also achieves circular polarization handedness rotation from 34.5 to 36.6 GHz (5.91%).