Passivity-Preserving Model Reduction Using Dominant Spectral-Zero Interpolation

  title={Passivity-Preserving Model Reduction Using Dominant Spectral-Zero Interpolation},
  author={Roxana Ionutiu and Joost Rommes and Athanasios C. Antoulas},
  journal={IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems},
In this paper, the dominant spectral-zero method (dominant SZM) is presented, a new passivity-preserving model-reduction method for circuit simulation. Passivity is guaranteed via spectral-zero interpolation, and a dominance criterion is proposed for selecting spectral zeros. Dominant SZM is implemented as an iterative eigenvalue-approximation problem using the subspace-accelerated dominant-pole algorithm. Passive circuits are reduced automatically irrespective of how the original system… CONTINUE READING
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