Title :
A de-embedding method to characterize differential amplifiers using passive baluns
Author :
García-Pérez, O. ; González-Posadas, V. ; García-Muñoz, L.E. ; Segovia-Vargas, D.
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Carlos III de Madrid, Leganes, Spain
Abstract :
This paper analyses the noise and gain measurement of microwave differential amplifiers using two passive baluns. A model of the baluns that includes potential losses and unbalances has been considered. This analysis allows to de-embed the actual performance of the differential device from the single-ended measurements of the two-port cascaded system and the baluns. The method has been validated with measured results from a fully-differential amplifier prototype.
Keywords :
baluns; differential amplifiers; microwave amplifiers; de-embedding method; differential device; fully-differential amplifier prototype; microwave differential amplifier; passive balun; single-ended measurement; two-port cascaded system; Differential amplifiers; Impedance matching; Noise; Noise figure; Resistors; Scattering parameters; baluns; differential amplifiers; low-noise amplifiers; noise measurement;
Conference_Titel :
Microwave Conference (EuMC), 2011 41st European
Conference_Location :
Manchester
Print_ISBN :
978-1-61284-235-6
