Nonlinear circuit-reduction of high-speed interconnect networks using congruent transformation techniques
IEEE Transactions on Advanced Packaging , Volume 24 - Issue 3 p. 317- 325
A new algorithm based on Krylov subspace methods is proposed for efficient simulation of large interconnect networks with nonlinear terminations. Reduction is obtained by projecting the original system described by nonlinear differential equations into a subspace of a lower dimension. The reduced circuit can be simulated using conventional numerical integration techniques. Significant reduction in computational expense is achieved as the size of the reduced equations is much less than that of the original system. The new algorithm is potentially useful for analysis of lossy coupled transmission lines with nonlinear terminations.
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Gunupudi, P, & Nakhla, M.S. (2001). Nonlinear circuit-reduction of high-speed interconnect networks using congruent transformation techniques. IEEE Transactions on Advanced Packaging, 24(3), 317–325. doi:10.1109/6040.938299