Abstract
The pseudo-spectral time domain (PSTD), a numerical method which expands the spatial derivatives in the time dependent Maxwell's curl equations using Fourier transformation (FT) properties, is investigated for one dimensional (1-D) cases. In order to avoid wrapping effects on FT, the technique of unsplit anisotropic perfectly matched layers (UA-PML) is adopted for the treatment of the absorbing boundary condition (ABC). The selection of the parameters associated with the UA-PML as well as applications of the PSTD are studied and reported and compared to the finite difference time domain (FDTD) approach. When appropriate parameters are applied the PSTD exhibits superior performance compared to the FDTD method.
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