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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.
Nanoscale Research Letters
|March 30, 2019
Summary
This study introduces a novel coding electromagnetic metasurface (EMMS) that achieves both broadband tunable radiation and low-scattering capabilities. The innovative design integrates diffusion scattering and wideband polarized radiation using optimized element arrangements.
Area of Science:
- Electromagnetics
- Materials Science
- Metasurface Engineering
Background:
- Metasurfaces offer advanced control over electromagnetic waves.
- Integrating multiple functionalities like radiation and scattering into a single device is challenging.
- Tunable and low-scattering electromagnetic devices are crucial for advanced applications.
Purpose of the Study:
- To propose a coding electromagnetic metasurface (EMMS) with integrated broadband tunable radiation and low-scattering performance.
- To demonstrate a method for achieving diffusion scattering and wideband polarized radiation simultaneously.
- To provide a simple and ingenious approach for multifunctional EMMS design.
Main Methods:
- Investigated anisotropic elements coded as "0" and "1" based on phase response to orthogonal polarizations.
- Employed a simulated annealing algorithm for optimized element arrangement in the EMMS.
- Utilized electromagnetic simulations and experimental verification.
Main Results:
- Achieved broadband diffusion scattering.
- Demonstrated wideband linearly or circularly polarized radiation with symmetric profiles.
- Verified the integrated functionality of radiation and low scattering in a single coding EMMS.
Conclusions:
- The proposed coding EMMS successfully integrates broadband tunable radiation and low-scattering performance.
- The method provides a simple and ingenious design strategy for multifunctional metasurfaces.
- Validated results confirm the practical applicability of the developed EMMS.
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