IEEE Transactions on Magnetics · 1998 · 65 citations · 8 references
ComputingComputational EngineeringElectrical EngineeringComputational ElectromagneticsGrid ComputingMicrowave EngineeringConvergence AnalysisFinite Difference MethodsFinite Difference Time Domain AnalysisNumerical AlgorithmsNumerical Methods For Differential EquationsNumerical StabilityFinite Difference SchemesFinite Difference Time Domain ModelingFinite Difference Time Domain SimulationGrid DiscretizationMicrostrip Phase ShiftersNumerical Stability AnalysisStability Of Finite Difference SchemesStability Of Numerical Schemes
Recently, several modifications of Yee's well known FDTD method to locally refined grids or non-orthogonal coordinates have been presented. These methods sometimes show an unexpected unstable behavior. In this paper we will classify such instabilities in order to derive rules how to avoid them. As an example, we present a long term numerically stable subgridding scheme which will be examined by regarding a microstrip phase shifter.
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