Semi-analytical solution of electromagnetic scattering of a slit in PEC plane located in TI medium.

The electromagnetic scattering of a slit in the perfect electric conductor (PEC) plane embedded in the topological insulator (TI) medium is analyzed in this paper. The problem is solved by utilizing Kobayashi Potential method, which is a rapid semi-analytical approach with decent accuracy. In solving process, scattered fields are consist of some variables known as weighting functions. By applying boundary conditions, unknowns will be found. Also, discontinuous properties of Weber-Schafheitlin integrals and Rodriguez representation of Jacobi polynomials are employed to satisfy some of the boundary conditions and edge conditions of the problem simultaneously. By performing convergence analysis and error analysis, validation of the proposed approach is confirmed. Finally, by sweeping some parameters, the scattering behavior of the structure is investigated. [ABSTRACT FROM AUTHOR]