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Coding Anisotropic Metasurface with Integrated Broadband Tunable Radiation and Low-Scattering Performance
Li Li Cong1, Xiang Yu Cao2, Huanhuan Yang3
1Air Force Engineering University, Xi'an, 710077, China. 1183068955@qq.com.
Abstract:
In this paper, we propose a coding electromagnetic metasurface (EMMS) with integrated broadband tunable radiation and low-scattering performance. Anisotropic elements demonstrating opposite phases under x- and y-polarized incidence are investigated and coded as "0" and "1" basic elements. These elements are then arranged in an optimized layout using a simulated annealing algorithm to perform the EMMS. By this means, diffusion scattering is realized in a broadband. Meanwhile, when "0" and "1" are fed properly, the coding EMMS displays wideband linearly or circularly polarized radiation with symmetric profiles. Simulated and experimental results verify that our method offers a simple and ingenious way to integrate broadband radiation and low scattering into one single-coding EMMS.
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