Parametric Models Based on Sensitivity Analysis for Passive Components

Passive components with significant high frequency field effects have to be modeled taking into consideration full wave electromagnetic field equations. Such a field formulation with appropriate electromagnetic circuit element boundary conditions is numerically analyzed in the time domain with the finite integral technique, a sparse state-space representation of the component being obtained. The novelty of the presented approach is the use of model parameterization and the extraction of the model sensitivities needed by parametric model order reduction procedures. The paper investigates the validity of first order Taylor Series expansion with respect to the parameters as approximation for the extracted semi-state space models.