Mode-Matching Analysis of Circular-Ridged Waveguide Discontinuities

Uma Balaji; R. Vahldieck

doi:10.1109/22.660987

Mode-Matching Analysis of Circular-Ridged Waveguide Discontinuities

Uma Balaji, R. Vahldieck

Fairfield University

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes a mode-matching algorithm for S-parameter computation of circular-ridged waveguide (CRW) discontinuities. The ridges are shaped like the cross section of a cone (pie-shaped) with a geometry that can he described in cylindrical coordinates. This idea avoids the use of a mixed-coordinate system in the analysis of the electromagnetic fields in the ridged sections, which can, therefore, be expressed in terms of modal functions. The resulting algorithm is fast and accurate and has been utilized to design and optimize a five-section double-ridge filter and a quadruple-ridge waveguide transformer. The measured response of the filter is in good agreement with the calculated data.

Original language	American English
Journal	IEEE transactions on microwave theory and techniques
Volume	46
DOIs	https://doi.org/10.1109/22.660987
State	Published - Jan 1 1998

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Engineering

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AB - This paper describes a mode-matching algorithm for S-parameter computation of circular-ridged waveguide (CRW) discontinuities. The ridges are shaped like the cross section of a cone (pie-shaped) with a geometry that can he described in cylindrical coordinates. This idea avoids the use of a mixed-coordinate system in the analysis of the electromagnetic fields in the ridged sections, which can, therefore, be expressed in terms of modal functions. The resulting algorithm is fast and accurate and has been utilized to design and optimize a five-section double-ridge filter and a quadruple-ridge waveguide transformer. The measured response of the filter is in good agreement with the calculated data.

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Mode-Matching Analysis of Circular-Ridged Waveguide Discontinuities

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