An Empirical Probe to the Operation of SIS Receivers-Revisiting the Technique of Intersecting Lines

摘要

An alternate formulation is derived for the technique of intersecting lines which is a well established tool for the analysis of the performance of SIS receivers. This newer formulation is easier to use and provides an estimate of possible experimental error. The significance of the intersecting temperature, T_X, is discussed. Our experiments suggest that both quantum noise and the input match of the SIS mixer contribute to the value of the intersecting temperature.