Lossy Interconnect Modeling for Transient Simulations
This paper deals with the modeling of electrically-long lossy multiconductor interconnects for transient simulations. Low-loss interconnects with frequency dependent losses, which are typical of fast signals applications, are specifically addressed. The proposed approach yields models with improved accuracy and run times only slightly greater than those required by the ideal lossless model. Besides, our models can be tailored to specific simulation problems and coded in standard simulators by any user with minimum efforst. The modeling approach is based on the matched scattering characteristics of the interconnects and on their representation as differential-difference equations. The paper includes a complete outline of the approach as well as a demonstration of its effectiveness through realistic simulation examples. The influence of the frequency dependence of losses and of the modeling approximations introduced are also discussed.
KeywordsTransient Simulation Voltage Waveform Perturbation Model Standard Simulator Complete Outline
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