IEEE Transactions on Microwave Theory and Techniques · 2006 · 23 citations · 14 references
ComputingComputational EngineeringElectrical EngineeringComputational ElectromagneticsMicrowave EngineeringThin FilmsFinite Volume MethodsMesh GenerationScattering ProblemsBoundary Conditions In Electromagnetic SimulationPerfectly Matched LayersPerformance CharacterizationReflection Coefficient AnalysisUnstructured Grid Generation
The perfectly matched layer (PML) technique is extended for a cell-centered finite-volume time-domain (FVTD) method. A step-by-step procedure for the performance characterization of the FVTD PML is presented for both structured and unstructured finite-volume meshes. The FVTD PML is compared with the standard first-order Silver-Müller absorbing boundary condition (SM ABC) for practical applications. It is found that the FVTD PML for an unstructured grid achieves a reflection coefficient lower than -40 dB for incident angles up to 45° and outperforms the SM ABC by 15-20 dB.
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