The Finite - Di erence Time - Domain MethodApplied to Anisotropic
نویسنده
چکیده
The Finite-Diierence Time Domain (FDTD) method has received considerable attention recently. The popularity of the FDTD method stems from the fact that it is not limited to a speciic geometry and it does not restrict the constitutive parameters of a scatterer. Furthermore, it provides a direct solution to problems with transient illumination, but can also be used for harmonic analysis. However, researchers have limited their investigations to materials that are either isotropic or that have diagonal permittivity, conductivity, and permeability tensors. In this paper, we derive the necessary extension to the FDTD equations to accommodate nondiagonal tensors. Excellent agreement between FDTD and exact analytic results are obtained for a one-dimensional anisotropic scatterer.
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