Va. Thomas et al., THE USE OF SPICE LUMPED CIRCUITS AS SUBGRID MODELS FOR FDTD ANALYSIS, IEEE microwave and guided wave letters, 4(5), 1994, pp. 141-143
A general approach for including lumped circuit elements in a finite d
ifference, time domain (FDTD) solution of Maxwell's equations is prese
nted. The methodology allows the direct access to SPICE to model the l
umped circuits, while the full 3-Dimensional solution to Maxwell's equ
ations provides the crosstalk and dispersive properties of the microst
rips and striplines in the circuit.