Mode Spectrum Eigenvalue Formulation for Irregular Waveguides and Its Application to Waveguide Component Design
Conference: GeMIC 2008 - German Microwave Conference
03/10/2008 - 03/12/2008 at Hamburg-Harburg, Germany
Proceedings: GeMIC 2008
Pages: 4Language: englishTyp: PDF
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Authors:
Yu, Seng Yong; Bornemann, Jens (Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, V8W 3P6, Canada)
Abstract:
A new formulation to obtain the eigenmode spectra of irregular waveguides is presented. The method uses modified rectangular waveguide modes as expansion terms and leads to a classical eigenvalue problem. A two-dimensional negative rectangular step function is introduced to satisfy boundary conditions for TM modes. The procedure is combined with a mode-matching code and is used to analyse and design waveguide structures involving resonating components. The results are verified by measurements and comparison with existing full-wave modelling tools.