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Simulation of general linear dielectric properties in TLM

✍ Scribed by John Paul; Christos Christopoulos; David W.P. Thomas

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
199 KB
Volume
15
Category
Article
ISSN
0894-3370

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✦ Synopsis

Abstract

The simulation of linear dispersive dielectric materials in time‐domain TLM requires the inclusion of frequency‐dependent material properties in the scattering process. For media having frequency dependencies described by a single pole or a pair of complex poles, for example Debye, Drude or Lorentz, it is straightforward to develop individual algorithms on a case‐by‐case basis. However, this approach lacks generality and when applied to the modelling of media displaying more complicated frequency dependencies, somewhat lengthy calculations need to be evaluated each time a new material is required. To address this difficulty, this paper describes methods for obtaining the iteration algorithm for general linear isotropic dielectric media. The results obtained using different 𝒵‐transform methods are compared and an example of a frequency‐dependent structure is simulated. Copyright © 2002 John Wiley & Sons, Ltd.

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