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Arbitrary-angle single-step waveguide twist for quasi-octave bandwidth performance

Abstract: A quasi-octave bandwidth arbitrary-angle compact waveguide twist using a single matching step is presented. The proposed twist, based on a single intermediate ridge waveguide section that broadens its mono-mode operation, exhibits a similar wave impedance to the rectangular waveguide connected to its ports thus facilitating the reflections minimization in an extended frequency range. An exemplary 45° twist has been manufactured in the 10 GHz to 19.3 GHz frequency range (~64%) for demonstration purposes. The measured data are in concordance with those predicted by the simulation. This result represents, to the authors' knowledge, today's state-of-the-art in terms of compactness and bandwidth performance.

 Authorship: Cano J., Mediavilla A.,

 Fuente: Progress in Electromagnetics Research (PIER), 2018, 162, 73-79

 Publisher: ENW Publishing

 Year of publication: 2018

 No. of pages: 7

 Publication type: Article

 DOI: 10.2528/PIER18041207

 ISSN: 1070-4698,1559-8985

 Spanish project: ESP2015-70646-C2-2-R