Cutoff spaces of elliptical gyromagnetic planar circuits and waveguides using finite elements

Joseph Helszajn; Andrew A P Gibson

doi:10.1109/22.20022

Cutoff spaces of elliptical gyromagnetic planar circuits and waveguides using finite elements

Joseph Helszajn, Andrew A P Gibson

School of Engineering & Physical Sciences

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

4 Citations (Scopus)

Abstract

The finite-element method is used to evaluate the cutoff spaces of elliptical magnetized planar circuits with electric and magnetic walls in all combinations. A knowledge of the four possible solutions and of the rules governing the intersections of cutoff branches in the cutoff spaces is sufficient for a complete description of the related elliptical gyromagnetic waveguide with either an electric or a magnetic wall. It is also demonstrated that the demagnetized and split cutoff numbers of the resonator with magnetic sidewall and top and bottom electric walls are sufficient for the approximate description of the split phase constants of the dominant mode in the related weakly magnetized gyromagnetic waveguide problem with either a magnetic or an electric wall.

Original language	English
Pages (from-to)	71-80
Number of pages	10
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	37
Issue number	1
DOIs	https://doi.org/10.1109/22.20022
Publication status	Published - Jan 1989

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abstract = "The finite-element method is used to evaluate the cutoff spaces of elliptical magnetized planar circuits with electric and magnetic walls in all combinations. A knowledge of the four possible solutions and of the rules governing the intersections of cutoff branches in the cutoff spaces is sufficient for a complete description of the related elliptical gyromagnetic waveguide with either an electric or a magnetic wall. It is also demonstrated that the demagnetized and split cutoff numbers of the resonator with magnetic sidewall and top and bottom electric walls are sufficient for the approximate description of the split phase constants of the dominant mode in the related weakly magnetized gyromagnetic waveguide problem with either a magnetic or an electric wall.",

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AB - The finite-element method is used to evaluate the cutoff spaces of elliptical magnetized planar circuits with electric and magnetic walls in all combinations. A knowledge of the four possible solutions and of the rules governing the intersections of cutoff branches in the cutoff spaces is sufficient for a complete description of the related elliptical gyromagnetic waveguide with either an electric or a magnetic wall. It is also demonstrated that the demagnetized and split cutoff numbers of the resonator with magnetic sidewall and top and bottom electric walls are sufficient for the approximate description of the split phase constants of the dominant mode in the related weakly magnetized gyromagnetic waveguide problem with either a magnetic or an electric wall.

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Cutoff spaces of elliptical gyromagnetic planar circuits and waveguides using finite elements

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