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Passivity Verification in Delay-Based Macromodels of Multiconductor Electrical Interconnects

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4 Author(s)
Changzhong Chen ; Carleton Univ., Ottawa ; Gad, Emad ; Nakhla, M. ; Achar, R.

This paper presents a generalized theory of passivity verification in delay-based macromodels for multiconductor transmission line networks generated using the method of characteristics (MoCs). We demonstrate that the passivity in an MoC macro-model is equivalent to the nonnegative definiteness in the admittance matrices of two submodels. We then provide the necessary and sufficient conditions for each submodel to have a nonnegative definite admittance matrix. The presented theory develops an algebraic test to verify the passivity in MoC macromodels. Numerical results demonstrate the validity of the proposed theory.

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Advanced Packaging, IEEE Transactions on  (Volume:30 ,  Issue: 2 )