Equivalent dipole distribution for multiple obstacle scattering study using Wave Iterative Process

An application of the Wave Iterative Process (WIP) is presented in the case of the study of the scattering of an electromagnetic plane wave by an arbitrarily placed metallic dipole. A useful approximation is introduced, by replacing one arbitrarily oriented dipole with three equivalent dipoles, each situated along one of the three axes of the reference system, in order to allow the future study of multiple scattering structures, consisting of a large number of dipoles. The effect of this approximation is evaluated upon the vector potential induced by the current distribution on the dipole.