Solutions to spherical anisotropic antennas

An exact solution is found for the fields of a spherical antenna with an anisotropic surface. The surface, for which a rather simple solution is found, conducts perfectly only along spiral lines which go from pole to pole, and is otherwise nonconducting. The antenna is either excited by fields at a gap around the equator or at low frequencies between adjacent spirals. The method of solution is described, and results of several representative cases are presented.