Incorporación de medios dispersivos en simuladores FDTD mediante la técnica de la transformación de Möebius
Date
2003-09Derechos
© 2003 URSI España
Publicado en
URSI 2003, XVIII Simposium Nacional de la Unión Científica Internacional de Radio, La Coruña
Palabras clave
FDTD methods
Mobius transformation
Dispersive media
Abstract:
This paper introduces a technique for FDTD modeling of wave propagation in general Mth-order dispersive media. Ohm´s law in the Laplace domain with an Mth-order rational model for the complex conductivity is considered as a constitutive relation. In order to discretize this model, the complex conductivity is mapped onto the Z-transform domain by means of the Mobius transformation. This leads finally to a set of difference equations that is consistent with Yee`s scheme. The resulting formulation is explicit, it has a second-order accuracy and the need for additional storage variables is minimal.
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- D12 Congresos [545]