A complete calibration procedure for time domain network analyzers

Abstract

A complete calibration procedure for a fast sampling oscilloscope has been developed. This calibration makes it possible to use time-domain-reflected, time-domain-transmitted (TDR-TDT) systems at a quantitative level as a time-domain network analysis (TDNA) system. The data acquisition and calibration programs are implemented on a personal computer. All measurements are achieved in the time domain; the errors are corrected in the frequency domain, after Fourier transform. The bandwidth of the system extends from DC to 20 GHz. A whole calibration is achieved in a time comparable to LRL calibration on a classical network analyzer.<>