Title :
Analysis of cylindrical waveguide discontinuities using vectorial eigenmodes and perfectly matched layers
Author :
Bienstman, Peter ; Derudder, Henk ; Baets, Roel ; Olyslager, Frank ; De Zutter, Daniël
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Belgium
fDate :
2/1/2001 12:00:00 AM
Abstract :
In this paper, we analyze the scattering at discontinuities in cylindrical waveguides, starting from a vectorial eigenmode expansion and by introducing perfectly matched layer (PML) boundary conditions. The structure under study is enclosed in a metal cylinder to discretize the radiative mode spectrum, while the coating of this cylinder with PML vastly reduces the influence of parasitic reflections at the metal. This allows for a model that is both faster and more accurate than previous models
Keywords :
circular waveguides; eigenvalues and eigenfunctions; electromagnetic wave scattering; mode matching; waveguide discontinuities; waveguide theory; boundary conditions; cylindrical waveguide discontinuities; metal cylinder; parasitic reflections; perfectly matched layers; radiative mode spectrum; scattering; vectorial eigenmodes; Boundary conditions; Coatings; Light scattering; Optical fibers; Optical reflection; Optical scattering; Optical waveguides; Perfectly matched layers; Vertical cavity surface emitting lasers; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
