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Multilayer porous waveguide for microwave low-loss applications

Published online by Cambridge University Press:  18 May 2011

Ebrahim Mortazy ,
Alireza Hassani ,
Francois Legare ,
Ke Wu  and
Mohamed Chaker
Ebrahim Mortazy
Affiliation:
Institute National de la Recherche Scientifique (INRS), University du Québec, Varennes J3X 1S2, Canada
Alireza Hassani*
Affiliation:
Institute National de la Recherche Scientifique (INRS), University du Québec, Varennes J3X 1S2, Canada
Francois Legare
Affiliation:
Institute National de la Recherche Scientifique (INRS), University du Québec, Varennes J3X 1S2, Canada
Ke Wu
Affiliation:
Poly-Grames and Centre for Radiofrequency Electronics Research, Ecole Polytechnique de Montréal, Montréal H3T 1J4, Canada
Mohamed Chaker
Affiliation:
Institute National de la Recherche Scientifique (INRS), University du Québec, Varennes J3X 1S2, Canada
*
Corresponding author: A. Hassani Email: [email protected]
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Abstract

A novel waveguide called multilayer porous waveguide (MPW) is proposed as microwave low-loss transmission lines. MPW is a fully rectangular dielectric waveguide composed of several periodically rectangular air gaps in a bulk dielectric that can be easily formed by placing several dielectric substrates in interval with air gaps. The loss and propagating characteristics of both TE and TM modes in MPW are studied. The TE mode confined in the air gaps has a lower loss than the TM mode spread out in air gaps and dielectric; however, the loss of TM mode is still less than that of conventional microwave waveguides. Finally, MPW is an artificial material with desirable electrical permittivity and loss that can be used in structure of conventional waveguides.

Keywords

Microwave lossporous waveguidemicrowave waveguidesFDTD
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 3 , Issue 4 , August 2011 , pp. 459 - 463
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2011

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