Scattering by a perfectly conducting circular cylinder with two infinite slots

The cylinder is taken to be perfectly conducting with two slots, situated in free space, loaded with a dielectric material of permittivity epsilon /sub 1/ and permeability mu /sub 1/, excited by a z-polarized (TM/sub z/) plane wave. The analysis is carried out using two methods. In the first method, the fields in and around the cylinder are found in terms of the aperture fields using the boundary value technique. Then, Galerkin´s method is introduced to solve for the unknown aperture fields. In the second method, the aperture field integral equation is used, while the fields in and around the cylinder are obtained in terms of the aperture electric fields. The resulting integral equations are solved using the method of moments. The total tangential electric field and the far scattered field are computed using the two proposed methods for various slot parameters.<>