Passive model order reduction of multiport distributed interconnects

Signal integrity analysis has become imperative for high-speed designs. In this paper, we present a new technique to advance Krylov-space based passive model-reduction algorithms to include lossy coupled transmission lines described by Telegrapher’s equations. In the proposed scheme, transmission line subnetworks are treated with closed-form stamps obtained using matrix-exponential Padé, where the coefficients describing the model are computed a priori and analytically. In addition, a technique is given to ensure that the contribution of these stamps to the modified nodal analysis (MNA) formulation leads to guaranteed passive macromodel.

• Type: Conference
• Year: 2000
• Where: DAC
• Authors: Emad Gad, Anestis Dounavis, Michel S. Nakhla, Ramachandra Achar
• Keywords: Computer Architecture, DAC 2000, Lossy Coupled Transmission, Passive Model-reduction Algorithms, Transmission Line