Broadband Polarization Manipulation Based on W-Shaped Metasurface
Broadband Polarization Manipulation Based on W-Shaped Metasurface
复制标题
基于W形超表面的宽带偏振操控
DOI:
10.3389/fmats.2022.850020
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发表时间:
2022-03
影响因子:
3.2
通讯作者:
Yong Sun
中科院分区:
文献类型:
--
作者:
Guangyuan Xu;Lei Gao;Yongqiang Chen;Yaqiong Ding;Jun Wang;Yu Fang;Xingzhi Wu;Yong Sun
We present a metasurface consisting of W-shaped resonators to realize broadband reflective linear and circular polarization conversions. We find that the cross polarization conversion ratio for normal incidence is over 0.95 from 9.2 to 18.7GHz, covering 68.1% of the central frequency. We also show that, the conversion performance is almost insensitive to the angle of incident waves. Furthermore, by simply adjusting the geometrical parameters of the W-shaped metasurface, the broadband circular polarization conversion is also achieved. We emphasize that the bandwidth of axis ratio less than 3.0dB covers from 10.1 to 17.7GHz, equivalent to 54.7% relative bandwidth. Due to these broadband and high-efficiency polarization conversion features, our proposal may have a wide application prospect.
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