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Article Dans Une Revue IEEE Transactions on Antennas and Propagation Année : 2008

Omega-type balanced composite negative refractive index materials

Résumé

We report on the theoretical and experimental analysis of Omega-type metamaterials operating in X and Ku-bands. The prototypes are fabricated on the basis of metal waveguide technologies (hollow and TEM parallel plate) loaded with printed boards of interconnected Omega-shaped motifs. This interconnection of particles in the transverse direction leads to a broad left-handed band. Moreover, it is shown that such structures can be designed for a continuous negative-zero-positive index dispersion. This balanced composite behavior, so far known for periodically loaded transmission lines is verified experimentally with left- and right-handed dispersion branches extending from 8 to 12 and 12 to 16 GHz respectively. This zero-gap capability is explained on the basis of effective parameters retrieval.
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Dates et versions

hal-00356936 , version 1 (29-01-2009)

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Eric Lheurette, Gregory Houzet, Jorge Carbonell, Fuli Zhang, Olivier Vanbésien, et al.. Omega-type balanced composite negative refractive index materials. IEEE Transactions on Antennas and Propagation, 2008, 56 (11), pp.3462-3469. ⟨10.1109/TAP.2008.2005448⟩. ⟨hal-00356936⟩
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