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DOI : 10.1002/mop.24036

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Microwave and Optical Technology Letters 51, 2 (2009) Pages 280 - 284

Technique for reducing surface wave at an air/left-handed medium (LHM) interface or excitation of the forward wave in an LHM

Halim Boutayeb 1, Ke Wu 1, Kouroch Mahdjoubi 2

(01/02/2009)

In this article, we analyze the illumination by an electromagnetic wave of an air/left-handed medium (LHM) interface. It is shown that by placing a periodic structure of resistors near the LHM it is possible to suppress or to reduce the surface wave that is present at the interface. For our demonstration, we consider a semi-infinite lossless left-handed medium having the same constitutive parameters as those of air but with opposite signs. Numerical results, obtained by using a full-wave time domain technique, are presented to validate our approach and the proposed scheme. This work can extend the potential applications of left-handed materials, because it shows that it is possible to use LHM slabs having large width. In addition, this work shows that it is possible to excite the forward wave of an LHM instead of the backward wave.

1 :	Ecole Polytechnique de Montreal (EPM)
	Université de Montréal
2 :	Institut d'Electronique et de Télécommunications de Rennes (IETR)
	CNRS : UMR6164 – Université de Rennes 1 – INSA Rennes – SUPELEC

Domaine

:

Sciences de l'ingénieur/Electromagnétisme

Mots Clés : Negative Intrinsic Impedance – left-handed materials – surface mode – periodic structures – impedance matching

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Contributeur : Halim Boutayeb <>

Soumis le : Jeudi 25 Décembre 2008, 23:33:54

Dernière modification le : Vendredi 26 Décembre 2008, 12:44:30