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arXiv · 2103.04362

Semianalyitcal synthesis scheme for multifunctional metasurfaces on demand

Vinay K. Killamsetty·Ariel Epstein
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Abstract

We propose a comprehensive field-based semianalytical method for designing fabrication-ready multifunctional periodic metasurfaces (MSs). Harnessing recent work on multielement metagratings based on capacitively-loaded strips, we have extended our previous meta-atom design formulation to generate realistic substrate-supported printed-circuit-board layouts for anomalous refraction MSs. Subsequently, we apply a greedy algorithm for iteratively optimizing individual scatterers across the entire macroperiod to achieve multiple design goals for corresponding multiple incidence angles with a single MS structure. As verified with commercial solvers, the proposed semianalytical scheme, properly accounting for near-field coupling between the various scatterers, can reliably produce highly efficient multifunctional MSs on demand, without requiring time-consuming full-wave optimization.

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Vinay K. Killamsetty, Ariel Epstein. 2021-03-07. Semianalyitcal synthesis scheme for multifunctional metasurfaces on demand. https://arxiv.org/abs/2103.04362

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