Stretched-coordinate PML in 2D TLM simulations

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

Abstract

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.

Citation

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. https://doi.org/10.1049/iet-smt.2019.0340

• 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 (IET)
• Peer Reviewed: Peer Reviewed
• Volume: 14
• Issue: 3
• Pages: 272-277
• DOI: https://doi.org/10.1049/iet-smt.2019.0340
• Keywords: Electrical and Electronic Engineering; Atomic and Molecular Physics, and Optics
• Public URL: https://nottingham-repository.worktribe.com/output/4766103
• Publisher URL: https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2019.0340
• Related Public URLs: https://ieeexplore.ieee.org/document/9071578