DIFFRACTION OF ELECTROMAGNETIC-WAVES BY A PERFECTLY CONDUCTING SPHERICAL-SHELL WITH ELLIPTICAL CONTOUR A SPHERICAL MULTIPOLE ANALYSIS

In this paper the spherical multipole analysis is used in order to treat the diffraction by a spherical shell with elliptical contour. This boundary value problem can be reduced to a two-parametric eigenvalue problem with two Lamé equations. Numerical data are presented like current distributions and radiation patterns for a spherical reflector with elliptical contour. Furthermore computed scattering characteristics for a spherical cavity with an elliptical aperture are shown. © 1990 Springer-Verlag.