Modeling of power distribution networks for mixed signal applications

This paper presents a method for analyzing irregular shaped power distribution networks both in the frequency and time domain for mixed signal applications. Using a two dimensional array of distributed RLCG circuits, the impedances of a power/ground plane pair are computed. For the efficient computation of the power distribution impedances at specific points in the network, a multiinput and multi-output transmission matrix method has been used. This method is 7X-13X faster than SPICE and saves memory requirements.