On the Deviation of MAS Fields in the Far-Field Region of Elementary Sources Close to Infinite Boundaries

For the simple problem of an electric current filament close to a perfectly conducting infinite plane, the method of auxiliary sources (MAS) yields numerical solutions that are systematically deviating from the exact one beyond a certain horizontal distance (i.e., outside the region demarcated by the finite set of auxiliary sources). In this article, in order to shed light on the edge-effect natur...