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Improvements in Solution of Integral Eigenvalue Equations for Waveguides of Arbitrary Cross Section
Nguyen Hoang HAI Masao KODAMA
IEICE TRANSACTIONS on Electronics
Publication Date: 2002/05/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
waveguide of arbitrary cross section, cutoff frequency, modal field, moment method, integral equation,
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Cutoff frequencies and the modal fields in hollow conducting waveguides of arbitrary cross section are frequently calculated by the method of solving integral equations. This paper presents some improvements for the method by the integral equations. The improved method can calculate the cutoff frequencies and the modal fields only by using the real number, and this method can remove extraneous roots when calculating the cutoff frequencies. The former method calculates the cutoff frequency and the fields only at the cutoff frequency, but the improved method can calculate the fields at arbitrary phase constants.