Abstract :
Stability analysis of the finite difference time domain scheme containing macromodels is presented. It is shown that for a stable macromodel, the stability of the combined scheme depends on the field interpolation at the macromodel boundary. The maximal allowable time step is shown to be much larger than for subgridding.
Keywords :
"Finite difference methods","Time domain analysis","Transfer functions","Mathematical model","Maxwell equations","Interpolation","Numerical stability","Computational electromagnetics","Frequency","Finite element methods"
