QUEST – Extraction of Frequency Dependent R, L, C, and G Transmission Line Models

1.0 Introduction

A primary use of QUEST is intended to be for extracting frequency dependent transmission line models for use in SPICE circuit simulations.

The generation of SPICE parameters for transmission line models is becoming increasingly important as clock speeds approach and exceed the 1 GHz frequency range. At these speeds many parts of a chip such as data buses, clock lines or power rails can no longer be modeled using simple RC networks. QUEST takes this one step further, as not only does it include inductance in the transmission line model but all the parameters in the generated models are frequency dependent.