Accurate resistance, inductance, capacitance, and conductance (RLCG) from uniform transmission line measurements

Existing time-based and frequency-based RLCG extraction methods from measurements on uniform transmission lines are discussed. Using a THRU bisect de-embedding technique proved useful in removing resonances, particularly with the distributed resistance.

I. Introduction

Accurate high-frequency broad-band transmission line models are required for accurate simulation of signal paths implemented in modern computer and communication systems. Such transmission line models are typically given in terms of frequency dependent resistance, inductance, capacitance and conductance (RLCG) parameters, alternatively termed “RLGC” in many papers. Whereas lossy transmission line models may equally be described in terms of the characteristic impedance and propagation constant , designers are typically more adept at viewing RLCG parameters to determine if factors such as skin-effect and dielectric loss are defined properly.