Dynamic Metasurfaces for Energy Concentration

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2021-08-28
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en
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2021 34th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2021
Abstract
In this talk, we put forward the concept of metasurface energy concentrator which can fully reflect waves incident from multiple directions into one direction. The proposed structure is based on a spatiotemporally modulated impedance sheet mounted on a grounded substrate. We show what proper traveling-wave modulations of the sheet impedance provide this functionality. We introduce a general analysis and design method based on the generalized transmission-line model. Using mathematical optimizations, we demonstrate three-port and four-port designs of energy concentrators.
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| openaire: EC/H2020/871464/EU//ARIADNE
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Wang , X & Tretyakov , S A 2021 , Dynamic Metasurfaces for Energy Concentration . in 2021 34th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2021 . URSI General Assembly and Scientific Symposium , Meta4Books vzw , URSI General Assembly and Scientific Symposium , Rome , Italy , 28/08/2021 . https://doi.org/10.23919/URSIGASS51995.2021.9560458