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 .

ISSN (online): 1931-7360



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.