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Wave propagation along a rectangular metallic waveguide longitudinally loaded with a metamaterial slab

✍ Scribed by H. Cory; A. Shtrom

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 132 KB
Volume: 41
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.20067

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✦ Synopsis

Abstract

Wave propagation along a rectangular metallic waveguide, loaded with a longitudinal metamaterial slab adjacent to air, is studied in this paper. The dispersion relations have been obtained and the β − ω diagrams have been drawn for various width ratios of the metamaterial to air regions. For real propagation coefficients, in the 0 < β < k~0~ range, the group velocity could be negative, very low or constant, depending on the frequency range and on the width ratios of the two regions. In some cases, it has been found that the propagation coefficient is complex although the media are lossless: there is no net energy flow through any cross section of the guide so that the energy present is only stored reactive energy, and this seems to be due to strong coupling processes occurring in the device. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 123–127, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20067

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