Hybrid PML-ABC Truncation Techniques for Finite-Volume Time-Domain Simulations
Date
2006
Authors
Sankaran, K.
Fumeaux, C.
Vahldieck, R.
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Conference paper
Citation
Asia-Pacific Microwave Conference Proceedings, 2006; volume 2: pp.949-952
Statement of Responsibility
Krishnaswamy Sankaran, Christophe Fumeaux and Rüdiger Vahldieck
Conference Name
Asia-Pacific Microwave Conference (2006 : Yokohama, Japan)
Abstract
Computational domain truncations using pure and hybrid techniques in the framework of the finite-volume time-domain (FVTD) method are presented. Accurate truncation of the split-field perfectly matched layer (PML) using the first-order Silver-Mueller absorbing boundary condition (SM-ABC) provides a substitute for standard perfect electric conductor (PEC) based truncation without extra computational effort. Strategies to adapt SM-ABC for truncating PML and the broadband performance analysis of the FVTD-PML models are explored with supporting numerical results. Numerical reflection coefficients in the range of -75 dB were achieved at normal incidence for a broadband source excitation. A similar analysis at 45 degree incidence angle results in numerical reflection coefficient below -45 dB. Copyright 2006 IEICE.
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© Copyright 2006 IEEE – All Rights Reserved