Title :
On the validity of single-ended mixed-mode s-parameter measurements for differential active devices
Author :
Schmitz, O. ; Hampel, S.K. ; Rabe, H. ; Simon, J. ; Rolfes, I.
Author_Institution :
Inst. fur Hochfrequenztech. und Funksysteme, Leibniz Univ. Hannover, Hannover, Germany
fDate :
Sept. 29 2009-Oct. 1 2009
Abstract :
This paper examines the differences occurring between virtual and true differential probing of active balanced devices in large signal region. The analysis is carried out by means of gain compression of single stage pseudo and true differential amplifiers. Based on analytical derivations, a simulation model for these amplifiers is developed and verified by measurement results. Finally, the reason for the deviation between virtual and true differential measurements is highlighted.
Keywords :
S-parameters; active networks; differential amplifiers; active balanced devices; differential active devices; gain compression; simulation model; single stage pseudo amplifier; single-ended mixed-mode S-parameter measurements; true differential amplifiers; true differential probing; virtual differential probing; Analytical models; Circuit simulation; Circuit testing; Differential amplifiers; Impedance matching; Microwave devices; Microwave measurements; Scattering parameters; Signal processing; Voltage;
Conference_Titel :
Microwave Conference, 2009. EuMC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4748-0
