Efficient transient simulation of high-speed interconnects characterized by sampled data

Wendemagegnehu T. Beyene, José E. Schutt-Ainé

Research output: Contribution to journalArticlepeer-review


In this paper, we present an algorithm for efficient simulation of high-speed interconnects characterized by sampled data. The method constructs pole-zero models of arbitrary interconnects using robust rational approximations of the measured or simulated scattering parameters. In order to obtain accurate interpolations of the data over a wide frequency range, a set of powerful techniques is applied to deal with the resulting ill-conditioned Vandermonde-like approximation matrices. By utilizing the analytic properties of the scattering parameters, the algorithm efficiently generates multiport pole-residue models. The models are combined with the lumped/distributed components for direct time- or frequency-domain simulations. The method can easily be implemented into conventional simulators such as simulation program with integrated circuit emphasis (SPICE) and advanced statistical analysis program (ASTAP) or reduced-order modeling techniques such as asymptotic waveform evaluation (AWE), complex frequency hopping (CFH), and Padd approximation via Lancros Process (PVL) for transient simulation of high-speed interconnect networks. Examples of linear and nonlinear networks are given to demonstrate the validity and accuracy of the method.

Original languageEnglish (US)
Pages (from-to)105-113
Number of pages9
JournalIEEE Transactions on Components Packaging and Manufacturing Technology Part B
Issue number1
StatePublished - Feb 1998


  • High-speed interconnect
  • Rational approximation
  • Scattering parameter

ASJC Scopus subject areas

  • General Engineering


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