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TLM simulation of electromagnetic wave propagation in anisotropic moving media
Author(s) -
Cabeceira Ana C. L.,
Barba Ismael,
Grande Ana,
Represa José
Publication year - 2005
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.574
Subject(s) - anisotropy , isotropy , physics , wave propagation , electromagnetic radiation , acoustics , computational physics , mechanics , classical mechanics , optics
A transmission line matrix (TLM) model suitable to simulate the propagation of waves in moving anisotropic continuous media is presented. As is well known, an electromagnetic wave propagating in a general medium, moving with respect to its source, experiences a drag by the own medium, which involves a wave velocity dependent on the direction of propagation. In this work, we present a first approach for the case of uniform movement of an anisotropic dielectric medium with respect to an electromagnetic source. Although the technique allows for quantitative results, special attention is devoted to the simulation of wave fronts, distorted elliptical fronts, because a particular kind of ‘anisotropy’ appears, even in an isotropic medium. Copyright © 2005 John Wiley & Sons, Ltd.