Interconnect simulation using order reduction and scattering parameters

Abstract

This paper demonstrates the use of scattering parameters for efficient and accurate simulation of transmission lines. First, a low-order rational approximation scheme is applied to the s parameters of the line system, next an appropriate reference system is chosen to optimize the formulation. Finally, the low-order rational approximations of the scattering parameters are directly implemented in conventional time-domain simulator using recursive convolution. Experimental results are used to validate the computer simulations.