A multifunctional metasurface with asymmetric transmission and high-efficiency cross-polarization converter

A three-layer multifunctional metasurface structure is proposed to achieve polarization rotation, perfect polarization conversion, and asymmetric transmission. The design consists of mutually perpendicular rectangular patches, metal pillars, and open-slit metal sheets. By propagating the current thr...

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Bibliographic Details
Published in:Journal of applied physics 2022-12, Vol.132 (22)
Main Authors: Fu, Yang, Cheng, Houyuan, Wu, Jiong, Li, Yujun, Dai, Yilin, Wen, Dinge, Yang, Helin
Format: Article
Language:English
Subjects:
Applied physics
Asymmetry
Conversion ratio
Dipoles
Metal sheets
Metasurfaces
Polarization
Radomes
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Summary:A three-layer multifunctional metasurface structure is proposed to achieve polarization rotation, perfect polarization conversion, and asymmetric transmission. The design consists of mutually perpendicular rectangular patches, metal pillars, and open-slit metal sheets. By propagating the current through the metal pillars and changing the surface current direction, the dipole can be orthogonally steered to accomplish polarization conversion. The metal in the middle layer can be used to both improve the polarization conversion ratio and ensure high transmittance. The operating band of asymmetric transmission is 8.3–14.7 GHz, where the conversion ratio is above 90% in all of 9–14.2 GHz. In order to verify the proposed concept, the related parameters are designed and measured, the final experimental results match with the simulation results, and the design can be used in the radome, electromagnetic stealth.
ISSN:0021-8979
1089-7550
DOI:10.1063/5.0129111