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On the octave bandwidth properties of octagonal-shaped waveguide mode transformers

Abstract: An octave bandwidth concept for compact rectangular-to-circular and square-to-circular waveguide transitions based on the use of intermediate octagonal-shaped sections is presented. Apart from its inherent bandwidth capability and spurious mode free operation, this architecture offers some other useful advantages such as easy fabrication, low losses, and extremely short length (less than 0.75 ? 0 , with ? 0 being the wavelength at the center frequency), which allows their use in the millimeter-wave frequency range. Experimental verification is provided through the measurement of a rectangular-to-circular mode transformer covering more than the super-extended C -band (3.6-7.025 GHz) with 30-dB return loss and 0.1-dB insertion loss, which represents state-of-the-art performance in terms of bandwidth.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Mediavilla A., Cano J.L., Cepero K.,

 Fuente: IEEE Transactions on Microwave Theory and Techniques, 2011, 59(10), 2447-2451

Editorial: Institute of Electrical and Electronics Engineers Inc.

 Fecha de publicación: 01/10/2011

Nº de páginas: 5

Tipo de publicación: Artículo de Revista

 DOI: 10.1109/TMTT.2011.2163077

ISSN: 0018-9480,1557-9670

Url de la publicación: https://doi.org/10.1109/TMTT.2011.2163077

Autoría

ANGEL MEDIAVILLA SANCHEZ

KAREN CEPERO LLAUGER