New rigorous formulation of electromagnetic scattering from perfectly conducting bodies of arbitrary shape

Abstract

A new exact method is developed for investigating the scattering of plane electromagnetic waves from perfectly conducting bodies. The multipole scattering problem is solved exactly and the method is applicable to more than one body localised in a region. Expansion of Green's dyadic in concentric spherical regions, one of them containing the scatterers, leads to the corresponding multipole expansions for the fields in these regions; then a set of algebraic equations is obtained for the associated multipole coefficients by using the appropriate boundary conditions. Both theoretical and experimental results are presented for spheres, prolate spheroids and some other arbitrary bodies, and excellent agreement is obtained between theory and experiment.