A rigorous and efficient method of moments solution for curved waveguide bends

Andreas Weisshaar; Stephen M. Goodnick; Vijai K. Tripathi

doi:10.1109/22.179881

A rigorous and efficient method of moments solution for curved waveguide bends

Andreas Weisshaar, Stephen M. Goodnick, Vijai K. Tripathi

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

54 Scopus citations

Abstract

An accurate and computationally efficient method of moments solution together with a mode-matching technique for the analysis of curved bends in a general parallel-plate waveguide is presented. In order to exemplify the techniques, the method is applied to study the transmission characteristics of single and cascaded curved E-and H-plane bends in a rectangular waveguide. It is shown that the effect of the orientation of cascaded bends on the transmission properties can be significant, and examples to demonstrate this effect are included. Results of the convergence with increasing number of expansion functions illustrate that only a few terms need to be considered for accurate evaluation of the transmission characteristics of structures having single and multiple bends. Comparison with measurements for single and cascaded curved H-plane bends in a WR-90 waveguide show good agreement with the predicted result.

Original language	English (US)
Pages (from-to)	2200-2206
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	40
Issue number	12
DOIs	https://doi.org/10.1109/22.179881
State	Published - Dec 1992
Externally published	Yes

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/22.179881

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title = "A rigorous and efficient method of moments solution for curved waveguide bends",

abstract = "An accurate and computationally efficient method of moments solution together with a mode-matching technique for the analysis of curved bends in a general parallel-plate waveguide is presented. In order to exemplify the techniques, the method is applied to study the transmission characteristics of single and cascaded curved E-and H-plane bends in a rectangular waveguide. It is shown that the effect of the orientation of cascaded bends on the transmission properties can be significant, and examples to demonstrate this effect are included. Results of the convergence with increasing number of expansion functions illustrate that only a few terms need to be considered for accurate evaluation of the transmission characteristics of structures having single and multiple bends. Comparison with measurements for single and cascaded curved H-plane bends in a WR-90 waveguide show good agreement with the predicted result.",

author = "Andreas Weisshaar and Goodnick, {Stephen M.} and Tripathi, {Vijai K.}",

note = "Funding Information: Manuscript received March 31, 1992; revised August 3, 1992. This work was partially supported by the National Science Foundation ECS-882 1107. The authors are with the Department of Electrical and Computer Engineering, Oregon State University, Corvallis, OR 9733 1. IEEE Log Number 9203686.",

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AU - Weisshaar, Andreas

AU - Goodnick, Stephen M.

AU - Tripathi, Vijai K.

N1 - Funding Information: Manuscript received March 31, 1992; revised August 3, 1992. This work was partially supported by the National Science Foundation ECS-882 1107. The authors are with the Department of Electrical and Computer Engineering, Oregon State University, Corvallis, OR 9733 1. IEEE Log Number 9203686.

PY - 1992/12

Y1 - 1992/12

N2 - An accurate and computationally efficient method of moments solution together with a mode-matching technique for the analysis of curved bends in a general parallel-plate waveguide is presented. In order to exemplify the techniques, the method is applied to study the transmission characteristics of single and cascaded curved E-and H-plane bends in a rectangular waveguide. It is shown that the effect of the orientation of cascaded bends on the transmission properties can be significant, and examples to demonstrate this effect are included. Results of the convergence with increasing number of expansion functions illustrate that only a few terms need to be considered for accurate evaluation of the transmission characteristics of structures having single and multiple bends. Comparison with measurements for single and cascaded curved H-plane bends in a WR-90 waveguide show good agreement with the predicted result.

AB - An accurate and computationally efficient method of moments solution together with a mode-matching technique for the analysis of curved bends in a general parallel-plate waveguide is presented. In order to exemplify the techniques, the method is applied to study the transmission characteristics of single and cascaded curved E-and H-plane bends in a rectangular waveguide. It is shown that the effect of the orientation of cascaded bends on the transmission properties can be significant, and examples to demonstrate this effect are included. Results of the convergence with increasing number of expansion functions illustrate that only a few terms need to be considered for accurate evaluation of the transmission characteristics of structures having single and multiple bends. Comparison with measurements for single and cascaded curved H-plane bends in a WR-90 waveguide show good agreement with the predicted result.

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A rigorous and efficient method of moments solution for curved waveguide bends

Abstract

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