A Complex Domain Mapping of the SCN for an Effective PML Implementation in TLM

IEEE Open Journal of Antennas and Propagation

Jomiloju S. Odeyemi¹  Phillip D. Sewell¹  Ana Vukovic¹  Trevor M. Benson¹ 

[1] George Green Institute for Electromagnetics Research, University of Nottingham, Nottingham, U.K.;

关键词: Perfectly matched layer;    stability;    stretched-coordinate;    transmission line modelling;    symmetrical condensed node;   

DOI  :  10.1109/OJAP.2020.2986293

来源: DOAJ

【 摘 要 】

An improved implementation of the perfectly matched layer (PML) is developed for the Transmission Line Modelling (TLM) method based on a mapping of the symmetrical condensed node (SCN) to an analytically extended geometric space. By mapping the TLM node, a medium - circuit equivalence is developed which maps transmission line parameters from real to complex domain. This consequently modifies the TLM scatter-connect process. The PML implementation is demonstrated for canonical cases where it is shown to have a comparable absorption performance and a significantly improved temporal stability relative to previously published TLM-PML formulations.

【 授权许可】

Unknown