MoM-based foster-type circuit model for lossy wire-interconnection structures

A highly versatile broadband equivalent circuit model for arbitrary lossy wire networks including moderate radiation losses is presented. Based on a quasistatic Method-of-Moments-eigenvalue problem a modal multiport circuit is derived with minimal computational effort, offering fast convergence and inherent stability for time-domain simulations with arbitrary active/passive non-linear loads. The model order can be estimated rigorously from the given frequency range. Incident electromagnetic field excitation is considered by additional modal sources, which are calculated with minimal effort. The proposed model is validated in the frequency and time domain.