Perturbation based modeling strategy for weakly coupled interconnects

Coupling between two general interconnect structures, each viewed as the aggressor and victim sub-systems, respectively, are modeled with a 4-port network. A new method is introduced to estimate the coupling effects on the victim subsystem with known activities in the aggressor sub-system. It is verified with an idealized example, and is illustrated with a real-world PCB design scenario for noise prediction.