1. Broadband cross-polarization conversion metasurface based on cross-shaped resonators.
- Author
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Liu, Zhaomei, Zhao, Bei, Jiao, Chunhong, Zhao, Lihua, and Han, Xingxing
- Subjects
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RESONATORS , *MAGNETIC resonance , *LINEAR polarization , *CURRENT distribution , *RESONANCE - Abstract
In this paper, a broadband polarization conversion metasurface in microwave regime based on cross-shaped resonators was proposed. The simulated results show that the converter can convert linear polarization wave into its cross-polarization wave, 2 dB bandwidth is 11.5–21.8 GHz, and the Polarization Conversion Ratio is greater than 96% in this range. The simulated surface current distributions show that there are three plasmon resonances generated by magnetic resonances and electric resonance, resulting in broadband cross-polarized reflections, and electromagnetic composite resonances in the same direction will inhibit cross-polarization reflection. The proposed converter presents polarization selectivity, which can only convert the y- and x-polarized waves completely. When the incident angles reach 40°, the converter also shows high-efficiency polarization conversion. The experimental results are highly consistent with the simulation ones. This work may have some potential application in polarization-controlled devices, stealth surfaces, antennas and etc. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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