SPECTRAL DOMAIN APPROACH TO THE NUMERICAL SOLUTION OF ELECTROMAGNETIC SCATTERING PROBLEMS.

A new technique, referred to as the ″Spectral Domain Approach″ , for solving a class of electromagnetic scattering problems is introduced. The principal feature of the method is that the formulation of the problem is carried out with the aid of the Fourier transform, rather than in the spatial domain. Several advantages of the spectral domain approach over the conventional integral equation methods are pointed out. It is shown, by means of examples that include the thin strip and the half-plane problems, that the method is especially useful for handling a class of electrically large scatterers.