Verification of first circulation conditions of turnstile waveguide circulators using a finite-element solver

Joseph Helszajn; John Sharp

doi:10.1109/TMTT.2005.850443

Verification of first circulation conditions of turnstile waveguide circulators using a finite-element solver

Joseph Helszajn, John Sharp

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

One means of adjusting the first circulation condition of any waveguide circulator is to have recourse to a finite-element (FE) solver. The purpose of this paper is to do so for each of the three possible geometries of the turnstile waveguide circulator. A complete statement of the first circulation condition also requires one of the susceptance slope parameter of the junction. This quantity is separately evaluated. The resonators under consideration are the side and apex coupled half-wave-long prism structures open circuited at each flat face and the conventional cylindrical geometry. The classic E-plane turnstile circulator using a prism resonator is also dealt with. The agreement between the existing literature and the FE adjustment is excellent. © 2005 IEEE.

Original language	English
Pages (from-to)	2309-2315
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	53
Issue number	7
DOIs	https://doi.org/10.1109/TMTT.2005.850443
Publication status	Published - Jul 2005

Keywords

Circulators
Finite elements (fes)
Gyromagnetic resonators
Nonreciprocal networks
Turnstile junctions

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10.1109/TMTT.2005.850443

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abstract = "One means of adjusting the first circulation condition of any waveguide circulator is to have recourse to a finite-element (FE) solver. The purpose of this paper is to do so for each of the three possible geometries of the turnstile waveguide circulator. A complete statement of the first circulation condition also requires one of the susceptance slope parameter of the junction. This quantity is separately evaluated. The resonators under consideration are the side and apex coupled half-wave-long prism structures open circuited at each flat face and the conventional cylindrical geometry. The classic E-plane turnstile circulator using a prism resonator is also dealt with. The agreement between the existing literature and the FE adjustment is excellent. {\textcopyright} 2005 IEEE.",

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AB - One means of adjusting the first circulation condition of any waveguide circulator is to have recourse to a finite-element (FE) solver. The purpose of this paper is to do so for each of the three possible geometries of the turnstile waveguide circulator. A complete statement of the first circulation condition also requires one of the susceptance slope parameter of the junction. This quantity is separately evaluated. The resonators under consideration are the side and apex coupled half-wave-long prism structures open circuited at each flat face and the conventional cylindrical geometry. The classic E-plane turnstile circulator using a prism resonator is also dealt with. The agreement between the existing literature and the FE adjustment is excellent. © 2005 IEEE.

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KW - Finite elements (fes)

KW - Gyromagnetic resonators

KW - Nonreciprocal networks

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