Combination of Methods of Volume and Surface Integral Equations in Problems of Electromagnetic Scattering by Small Thickness Structures

Problem of electromagnetic wave scattering by ideal conductors with thin dielectric coatings is considered. The problem is reduced to a system of volume and surface hypersingular integral equations. We solve the system by Galerkin’s method, using piecewise linear RWG functions for the surface equation, whilst for the volume equation we propose a combined system of piecewise linear and piecewise constant functions with prismatic supports. The method is tested on model problems, which showed the applicability of the proposed algorithm to the solution of scattering problems.