Several kinds of auxiliary sources for solving of some 3-D applied problems using the MAS

Summary form only given. The method of auxiliary sources (MAS) has been extensively used for solving the different type of applied EM problems. The key idea of the MAS is to represent the unknown scattered field by a sum of fundamental solutions of appropriate wave equation-auxiliary sources (AS), whose radiating centers are located on some auxiliary surface shifted outside the area where the unknown field is sought. The following applied EMC and other problems were solved by the MAS using different type of AS and are presented: (1) diffraction on a spherical body with an aperture, using the elemental dipoles for the AS; (2) diffraction on an open metal cube with non-symmetrical excitation using the piecewise-sinusoidal distribution of auxiliary current on the auxiliary surface which is modeled with a grid; and (3) modeling of a portable resonant antenna with dielectric substrate and metal back reflector using the piecewise-linear distribution of the auxiliary current. In all these problems the best choice of AS and the advantage of each type used is discussed