The continuous development of the Geometrical Theory of Diffraction
(GTD), from its conception in the 1950s, has now established it as a
leading analytical technique in the prediction of high-frequency
electromagnetic radiation and scattering phenomena. Consequently, there
is an increasing demand for research workers and students in
electromagnetic waves to be familiar with this technique. In this book
they will find a thorough and clear exposition of the GTD formulation
for vector fields. It begins by describing the foundations of the theory
in canonical problems and then proceeds to develop the method to treat a
variety of circumstances. Where applicable, the relationship between GTD
and other high-frequency methods, such as aperture field and the
physical optics approximation, is stressed throughout the text. The
purpose of the book, apart from expounding the GTD method, is to present
useful formulations that can be readily applied to solve practical
engineering problems. To this end, the final chapter supplies some fully
worked examples to demonstrate the practical application of the GTD
techniques developed in the earlier chapters.