Effectiveness of a second order CPML absorbing boundary condition within the periodic FDTD method

2009 ◽  
Author(s):  
J.A. Roden ◽  
J.P. Skinner ◽  
S. Johns
Keyword(s):  
Boundary Condition ◽  
Fdtd Method ◽  
Second Order ◽  
Absorbing Boundary Condition ◽  
Absorbing Boundary

scholarly journals Well-Designed Termination Wall of Perfectly Matched Layers for ATS-FDTD Method

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Ju Ge ◽  
Liping Gao ◽  
Rengang Shi
Keyword(s):  
Boundary Condition ◽  
Numerical Experiments ◽  
Fdtd Method ◽  
Difference Schemes ◽  
Absorbing Boundary Condition ◽  
Perfectly Matched Layers ◽  
Absorbing Boundary ◽  
Matched Layers ◽  
Special Difference

This paper presents a well-designed termination wall for the perfectly matched layers (PML). This termination wall is derived from Mur’s absorbing boundary condition (ABC) with special difference schemes. Numerical experiments illustrate that PML and the termination wall works well with ATS-FDTD(Shi et al. 2015). With the help of termination wall, perfectly matched layers can be decreased to two layers only; meanwhile, the reflection error still reaches -60[dB] when complex waveguide is simulated by ATS-FDTD.

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