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Effect of Losses in a Layered Structure Containing DPS and DNG Media

Canto, João R. ; Matos, S.A. ; Paiva, C. R. ; Barbosa, A.

PIERS Online Vol. 4, Nº 5, pp. 546 - 550, May, 2008.

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ISSN (online): 1931-7360

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Abstract
The problem of reflection and transmission of plane electromagnetic waves in a periodic multilayered structure ontaining double-negative (DNG) media is analyzed using a matrix formalism. A Lorentz model with a single resonance is used to describe the dispersion of the DNG medium. It is shown that the introduction of losses, in accordance with the Kramers-Kronig relations, is essential in order to obtain correct results on the performance of the structure.