Mode Spectrum Eigenvalue Formulation for Irregular Waveguides and Its Application to Waveguide Component Design

Konferenz: GeMIC 2008 - German Microwave Conference
10.03.2008 - 12.03.2008 in Hamburg-Harburg, Germany

Tagungsband: GeMIC 2008

Seiten: 4Sprache: EnglischTyp: PDF

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Yu, Seng Yong; Bornemann, Jens (Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, V8W 3P6, Canada)

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.