A novel reciprocity based development of the Green´s dyadic for canonical impedance cylinders and spheres- An angularly guided wave representation

A novel approach based on the electromagnetic (EM) reciprocity theorem is described for developing the Green´s dyadics pertaining to canonical impedance cylinders and spheres. These Green´s dyadics are chosen here to directly emphasize waves guided in the angular direction. The latter constitute canonical solutions useful in the construction of ray fields, within the UTD framework, that are excited by antennas on arbitrary convex surfaces with an impedance boundary condition (IBC). It is noted that the IBC can be utilized to model highly metallic, smooth, convex surfaces with a sufficiently thin material coating.