AUTHORS: John Sevic, MSEE – Maury Microwave Corporation November 2004
PUBLICATION HISTORY: First published in November 2004.
ABSTRACT: The source impedance presented at the DUT reference-plane by the source-tuner is a function of the source-tuner and its terminating impedance. The terminating impedance is based on the interaction of several signal conditioning elements, such as a bias tee, a coupler, a low-pass filter, and a reference PA. How the effect of this impedance is compensated for within ATS may have a deleterious effect on the accuracy of the source impedance displayed at the DUT reference-plane. This application note describes the various methods in which Maury ATS will compensate for this impedance.