Scattering by coated superquadric cylinders: a higher order boundary condition approach

A spectral formulation, based directly upon the tangential components of the fields, is used to derive appropriate boundary conditions. These boundary conditions are then used to compute the scattering from a special class of dielectric-coated conductors, uniformly coated conductors in the shape of a superquadric cylinder. This class of objects is chosen because it includes dielectric-coated circles, squares, ellipses, and rectangles as special cases, allowing the investigation of the effects of finite radii of curvature in a systematic fashion. For simplicity the investigation is limited to the case of H-polarization. The case of E-polarization can be handled similarly. Computations of radar cross sections of several dielectric-coated superquadric cylinders are presented.<>