Edge-Effect Theory in Mode-Matching Method for the Analysis of Printed-Circuit Waveguides

Mikio TSUJI  Hiroshi SHIGESAWA  

IEICE TRANSACTIONS on Electronics   Vol.E74-C    No.8    pp.2390-2397
Publication Date: 1991/08/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Electromagnetic Theory

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A new mode-matching method is proposed here for printed-circuit analysis, which considers the field-continuity conditions via the singular aperture field at conductor edges expanded into a finite series of known singular functions with unknown coefficients. In this sense, our approach seems to be similar with the spectral-domain method in the handling of singular functions of currents on conductor strips, but the aperture plane on which singular functions are assumed is taken along a perfectly different direction. Effectiveness of this method in numerical handling is proved by the dispersion calculations of microstrip lines with isotropic and anisotropic substrates.