A flexible procedure to avoid the boundary materials singularities in 2D transformation-based cloaks

Fábio J. F. Gonçalves, Alfred G. M. Pinto, Renato C. Mesquita and Elson J. Silva

Journal of Electromagnetic Waves and Applications, 2019, vol. 33, issue 3, 286-295

Abstract: An out-of-plane coordinate transformation can avoid singular materials in a two-dimensional electromagnetic cloak. Based on numerical simulations of elliptical cylinders, in this paper we show that the use of two different constants to define the out-of-plane stretching can result in anisotropic materials with lower values and yet with a better scattering reduction for a given incident wave direction.

Date: 2019
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DOI: 10.1080/09205071.2018.1547223

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