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Implementation of the stretched co‐ordinate‐based PML for waveguide structures in TLM
Author(s) -
Kang TaeWeon,
Christopoulos Christos,
Paul John
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.564
Subject(s) - perfectly matched layer , waveguide , lossy compression , optics , physics , transmission line , transmission (telecommunications) , free space , finite difference time domain method , domain (mathematical analysis) , computer science , mathematical analysis , mathematics , telecommunications , artificial intelligence
A novel implementation of the stretched co‐ordinate‐based perfectly matched layer (SCB PML) is presented to terminate waveguide structures in transmission‐line modelling (TLM). A generalized SCB PML, the complex frequency shifted PML (CFS PML) is also implemented to investigate its performance for evanescent waves. State variables in the Z ‐domain are employed to obtain update equations for incident voltage pulses. Numerical results for a rectangular waveguide filled with a lossy medium as well as free space, and for a parallel plate waveguide are presented. Copyright © 2004 John Wiley & Sons, Ltd.