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Octave bandwidth compact turnstile-based orthomode transducer

Abstract: A 64% instantaneous bandwidth scalable turnstile-based orthomode transducer to be used in the so-called extended C-band satellite link is presented. The proposed structure overcomes the current practical bandwidth limitations by adding a single-step widening at the junction of the four output rectangular waveguides. This judicious modification, together with the use of reduced-height waveguides and E-plane bends and power combiners, enables to approach the theoretical structure bandwidth limit with a simple, scalable and compact design. The presented orthomode transducer architecture exhibits a return loss better than 25 dB, an isolation between rectangular ports better than 50 dB and a transmission loss less than 0.04 dB in the 3.6-7 GHz range, which represents state-of-the-art achievement in terms of bandwidth.

 Autoría: Tribak A., Cano J., Mediavilla A., Boussouis M.,

 Fuente: IEEE Microwave and Wireless Components Letters, 2010, 20(10), 539-541

 Editorial: Institute of Electrical and Electronics Engineers Inc.

 Fecha de publicación: 01/10/2010

 Nº de páginas: 3

 Tipo de publicación: Artículo de Revista

 DOI: 10.1109/LMWC.2010.2060261

 ISSN: 1531-1309,1558-1764

 Proyecto español: CSD2008-00068

 Url de la publicación: https://doi.org/ 10.1109/LMWC.2010.2060261