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Implementation of the stretched co-ordinate-based PML for waveguide structures in TLM. (English) Zbl 1091.78009

In this study, the authors presented a novel implementation of the stretched co-ordinate-based perfectly matched layer (SCB PML) to terminate waveguide structures in the three dimensional symmetrical condensed node transmission line modeling. In order to deal with evanescent waves, the complex frequency shifted perfectly matched layer (CFS PML) is implemented for the transmission line modeling using the same approach. State variables in the z-domain are employed to obtain update equations for the incident voltage pulses. Numerical results are presented for a waveguide filled with free space or a lossy dielectric, and for a parallel plate waveguide.

MSC:

78A50 Antennas, waveguides in optics and electromagnetic theory
78-02 Research exposition (monographs, survey articles) pertaining to optics and electromagnetic theory
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