Broadband Circuit Model for Wire-Interconnection Structures Based on a MoM-Eigenvalue Approach

A novel highly versatile broadband Foster-type circuit model for arbitrary wire networks with moderate radiation losses is presented in this paper. Based on a quasi-static 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 nonlinear 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.