Circuit simulation of incident field coupling to multiconductor transmission lines with frequency-dependent losses

A time-domain macromodel for incident field coupling to multiconductor transmission lines with frequency-dependent losses is presented. The model, which is based on the closed-form matrix-rational approximation of the exponential matrix describing telegrapher's equations, is in the form of ordinary differential equations and can be easily included in SPICE like simulators for transient analysis. The semi-analytic rational approximation of the forcing functions used in the generation of the model makes it CPU efficient