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

Volume

49

Issue

2

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

349

Lastpage

354

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.903096

Filename

903096