E-PLANE FINLINE CIRCULATOR USING COUPLED H-PLANE TURNSTILE RESONATORS.

Joseph Helszajn, G. McDonald, D. Sutherland

Research output: Contribution to journalArticle

Abstract

Junction circulators using finline circuits may be realized by employing planar or turnstile ferrite resonators. The paper describes a finline turnstile circulator at 21 GHz, comprising a directly coupled evanescent junction of three E-plane WR42 waveguides symmetrically loaded by H-plane open gyromagnetic resonators. The degenerate counter-rotating eigenvalues of the device correspond to the even solution of two coupled quarterwave long resonators; the junction is separately cut-off for the in-phase eigenvalue.

Original languageEnglish
Pages (from-to)279-281
Number of pages3
JournalIEE Proceedings H: Microwaves, Antennas and Propagation
Volume135
Issue number4
Publication statusPublished - Aug 1988

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