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Stretched-coordinate PML in 2D TLM simulations

Odeyemi, Jomiloju S.; Vukovic, Ana; Benson, Trevor M.; Sewell, Phillip

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Jomiloju S. Odeyemi

Professor of Electromagnetic Applications

Trevor M. Benson

Professor of Electromagnetics


A novel implementation of the stretched coordinate perfectly matched layer (PML) is presented for the two-dimensional (2D) transmission line modelling (TLM) method. The formulation offers a unified approach and is based on the mapping of the TLM node to a complex stretched domain for which the resulting transformation of the constituent RLC transmission line components is elaborated. The transformation is shown to modify the TLM connect-scatter algorithm. The absorption performance is demonstrated by simulating a canonical waveguide test case. Unlike the existing split-field based TLM-PML implementations, which are better suited to lossless media, the numerical results obtained show the proposed PML formulation is effective in the termination of both lossy and lossless media.


Odeyemi, J. S., Vukovic, A., Benson, T. M., & Sewell, P. (2020). Stretched-coordinate PML in 2D TLM simulations. IET Science Measurement and Technology, 14(3), 272-277.

Journal Article Type Article
Acceptance Date Dec 9, 2019
Online Publication Date Apr 20, 2020
Publication Date May 1, 2020
Deposit Date Jul 13, 2020
Publicly Available Date Jul 13, 2020
Journal IET Science, Measurement & Technology
Print ISSN 1751-8822
Electronic ISSN 1751-8830
Publisher Institution of Engineering and Technology
Peer Reviewed Peer Reviewed
Volume 14
Issue 3
Pages 272-277
Keywords Electrical and Electronic Engineering; Atomic and Molecular Physics, and Optics
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