Theoretical and Mathematical Physics

A new effective method for solving three-dimensional problems of electromagnetic wave diffraction by impedance bodies with irregular boundaries is proposed. The method offers a high rate of convergence. Examples of solving the problems of wave scattering by bodies of revolution are given, and results illustrating the rate of convergence of a computational algorithm for bodies of various shapes are presented. The impedance approximation is shown to be valid for simulation of scattering characteristics of bodies with an insulating coating even when the boundary has irregularities and the refractive index of the coating is not too high. Various ways of characterizing “black bodies” and the results of studying their scattering characteristics are discussed.