Electromagnetic diffraction by an impedance wedge of arbitrary angle

Kurzfassung

The paper presents a numerical solution for diffraction of an obliquely incident plane electromagnetic wave by an arbitrarily angled impedance wedge. Application of Maliuzhinets’ method reduces the problem to coupled functional difference equations for angular spectra, from which an integral representation of the spectra in a basic strip is derived. Expanding the regular parts of the spectra in power series in terms of a new complex variable, which maps the basic strip into a unit circle, leads to a system of algebraic equations for expansion coefficients. This system is solved numerically, and results are provided for a specific wedge configuration.