par Meys, René ;Boukerroum, Fayçal
Référence IEEE transactions on instrumentation and measurement, 60, 4
Publication Publié, 2011-04
Article révisé par les pairs
Résumé : A system that completely characterizes the noise temperature of a linear two-port over the 100-MHz2.9-GHz band is presented. The system is based on a "long" transmission line and frequency variation. It allows measurements through the classical y-factor method or the more recent cold method. When applying the y-factor method, the system uses a broadband mismatched noise source and an autocalibration feature. To check the accuracy, a passive device is measured with its noise parameters computed from the S-parameters. The results produced by both methods are compared together and with respect to the values derived from the S-parameters. © 2006 IEEE.