Theses and Dissertations Collection

Interconnects in electrical/electronic systems are commonly modeled in frequency-domain. However, system level transient simulation typically needs its macromodel in circuit level representation. In this thesis, a novel iterative fitting method, Pole Residue Equivalent System Solver (PRESS), that approximates a multi-port frequency response to a set of poles and residues which can then be synthesized as an equivalent circuit netlist is proposed. The fitting method iteratively picks a few consecutive points from the frequency response and identifies a local transfer function matching their response; however, it tends to generate large number of poles/residues. To optimize the model order, improvements to the original PRESS algorithm are proposed. Experiments on multitude of test cases show that the performance of the resultant equivalent circuit matches closely to the given frequency-domain model, demonstrating the potential in the method for wide applications in signal and power integrity modeling and simulation of interconnect networks.