Hybrid nonsingular mappings in the multi-objective design of a transverse-magnetic reduced cloak

Fábio J. F. Gonçalves, Renato C. Mesquita and Elson J. Silva

Journal of Electromagnetic Waves and Applications, 2021, vol. 35, issue 2, 220-232

Abstract: This paper describes the integrated use of two design strategies for controlling the permittivity and permeability of a transformation electromagnetics two-dimensional cloak. This hybrid process permits more freedom in the choice of the constitutive properties, which could simplify the implementation with metamaterials. Because simplicity of materials and scattering performance are inherently conflicting characteristics, a multi-objective genetic algorithm is applied to optimize them. According to the presented results for a transverse-magnetic layered cloak, it is possible to have a good performance in terms of scattering even with an approximated reduced set of parameters with unitary axial permeability.

Date: 2021
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DOI: 10.1080/09205071.2020.1829092

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