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Abstract
Bi-anisotropic materials have enormous and interesting applications in electromagnetic (EM) engineering. In this study, based on the state space concept, an exact and rigorous analysis of EM propagation and scattering from multilayer bi-anisotropic cylindrical structures of the general case is proposed. In comparison to the other commonly used methods in the literature, the presented method reveals a faster and more accurate analytical framework. The similar works mostly presented approximated and numerical methods for the analysis of cylindrical structures containing bi-isotropic and/or anisotropic materials as special bi-anisotropic cases. Throughout the study, the geometrical specifications and the EM excitations are chosen based on practical considerations. Since the multilayer composite is practical especially for the realization of the inhomogeneous material, the proposed approach is applied to analyze inhomogeneous bi-anisotropic cylindrical structures with more degrees of freedom in manipulation of EM waves. Our results depict an excellent conformity to the other possible solutions to compute scattering from bi-anisotropic cylindrical configurations. The mentioned comprehensiveness is one of the main advantages of our work. The suggested approach can be used as a basic step for future research related to the analysis of forward and inverse scattering problems of practical types of cylindrical structures made by complex media.
© 2020 Optical Society of America
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