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Article Dans Une Revue Microwave and Optical Technology Letters Année : 2007

Double negative media using interconnected Omega-type metallic particles

Eric Lheurette
O. Vanbesien

Résumé

We report on broadband low-loss properties of Ω-based metamaterials. It is shown that interconnecting elementary current-loops via their arms can yield to a relative bandwidth of around 70% for infinite arrays. Combining interconnected and disconnected sections permits one to engineer the left-handed and right-handed dispersion branches with the prospect of composite artificial media such as those initially proposed by Itoh and coworkers (IEEE Microwave Mag 34 (2004) 34-50) in the context of transmission lines. This typical behavior is interpreted through a lumped element model. At last, some guidelines to optimize the transmission properties of Ω-shaped arrays are presented. These results are discussed on the basis of recently published data concerning Ω-shaped and C-shaped particles.

Dates et versions

hal-00255773 , version 1 (14-02-2008)

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Eric Lheurette, O. Vanbesien, D. Lippens. Double negative media using interconnected Omega-type metallic particles. Microwave and Optical Technology Letters, 2007, 49, pp.84-90. ⟨10.1002/mop.22034⟩. ⟨hal-00255773⟩
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