Multifunctional Nonreciprocal Metasurfaces Based on Spatiotemporal Modulation

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A4 Artikkeli konferenssijulkaisussa
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Date
2020-03
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en
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14th European Conference on Antennas and Propagation, EuCAP 2020, Proceedings of the European Conference on Antennas and Propagation
Abstract
In this talk, we put forward the concept of multi-functional nonreciprocal metasurfaces realized on an universal hardware platform. The proposed prototype is based on a spatiotemporally modulated impedance surface. We show that using appropriate traveling wave modulations it is possible to realize various nonreciprocal properties controlling the response for illuminating plane waves. Based on this principle, we find proper modulation functions for different application purposes, which allows us to switch the device functionality among isolators, phase shifters, circulators, and potentially even more functionalities.
Description
| openaire: EC/H2020/736876/EU//VISORSURF
Keywords
evanescent waves, multichannel metasurfaces, nonreciprocity, space-time
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Wang, X, Diaz-Rubio, A, Li, H, Tretyakov, S A & Alu, A 2020, Multifunctional Nonreciprocal Metasurfaces Based on Spatiotemporal Modulation . in 14th European Conference on Antennas and Propagation, EuCAP 2020 ., 9135997, Proceedings of the European Conference on Antennas and Propagation, IEEE, European Conference on Antennas and Propagation, Copenhagen, Denmark, 15/03/2020 . https://doi.org/10.23919/EuCAP48036.2020.9135997