Radar cross section of a coated elliptic cylinder using addition theorem

For a coated conducting structure, it is necessary to deal with the field both inside and outside the structure for its scattering analysis. In this paper, the scattering of dielectric coated conducting elliptic cylindrical body is determined for both principal polarizations (TE/TM).The addition theorem is employed to analytically obtain the scattered field and hence radar cross section (RCS). The incident field, scattered field and the field within the dielectric coating are analytically derived in terms of angular and radial Mathieu functions and unknown scattering coefficients. These unknowns are obtained by applying appropriate boundary conditions. The parametric analysis of RCS of coated elliptic cylinder is presented.