4.6 Article

Absorption-transmission-type multifunctional coding metasurface

Journal

JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 55, Issue 40, Pages -

Publisher

IOP Publishing Ltd
DOI: 10.1088/1361-6463/ac8207

Keywords

coding metasurface; multi-function; absorption; dual-polarization transmissions

Funding

  1. National Key Research and Development Program of China [2017YFA0700203]
  2. National Natural Science Foundation of China [61971134, 61631007]
  3. Fundamental Research Funds for the Central Universities [2242021R41078]
  4. 111 Project [111-2-05]

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Reflection- and transmission-type metasurfaces have great potentials in wireless communications. In this study, we propose an absorption-transmission-type multifunctional coding metasurface composed of an absorptive layer and a transmissive layer. This coding metasurface can independently perform three different functions for incident waves at different frequencies and polarizations: wave absorption, vortex-wave generation, and beam deflection. Numerical and experimental results demonstrate the excellent performance of low-frequency absorptions and high-frequency dual-polarization transmissions. This work provides a method for developing multifunctional and reconfigurable components for wireless communications in the future.
Reflection- and transmission-type metasurfaces have great potentials in wireless communications. In this letter, we propose an absorption-transmission-type multifunctional coding metasurface composed of an absorptive layer and a transmissive layer. For incident waves at different frequencies with different polarizations, the proposed coding metasurface can perform three different functions independently: wave absorption at low frequencies, vortex-wave generation for the x-polarized wave and beam deflection for the y-polarized wave at high frequencies. Both numerical and experimental results verify the excellent performance of low-frequency absorptions and high-frequency dual-polarization transmissions. This work provides a method for developing multifunctional and reconfigurable components for the wireless communications in the future.

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