Robust extraction of the frequency-dependent characteristic impedance of transmission lines using one-port TDR measurements

摘要

This paper discusses a method for extracting the frequency dependent characteristic impedance of transmission lines from Time Domain Reflectometry (TDR) measurements using an Open, Short, Load, and Shortline calibration. The frequency dependent behavior of transmission lines was successfully captured using this method. Two types of transmission lines were measured using this method namely, thick metal transmission lines in Printed Wiring Board (PWB) and thin transmission lines in MCM-L technology.