Source radiation in the presence of convex bodies

The first part of this work considers the problem of radiation from sources in the presence of smooth, convex, impenetrable objects and presents a brief survey of various high-frequency techniques. A generalization of the geometrical theory of diffraction and two new techniques -- based on the spectral domain approach and an asymptotic evaluation of the radiation integral for the surface current -- also are discussed. Some numerical results derived from the spectral domain formulas are presented, and a comparison with available theoretical and experimental data is included. The second part of this work describes a new technique for analyzing the radiation from a point electromagnetic source located on an infinitely conducting solid cylinder with a finite length. The method presented in this work is based upon a generalization of STD to the case of curved surfaces.