Title :
Direct extraction of nonlinear FET Q-V functions from time domain large signal measurements
Author :
Currás-Francos, M.C. ; Tasker, P.J. ; Fernández-Barciela, M. ; Campos-Roca, Y. ; Sánchez, E.
Author_Institution :
ETSI Telecomunicacion, Vigo Univ., Spain
fDate :
12/1/2000 12:00:00 AM
Abstract :
The authors present a simple and accurate procedure for the direct extraction of the quasi-static FET model nonlinear charge functions from large signal measurements. The method is based on the proper use of a vector nonlinear network analyzer (VNNA) with load-pull facilities. To our knowledge, these results show for the first time a direct procedure to extract the nonlinear charges of a FET using a very reduced number of large signal measurements
Keywords :
equivalent circuits; high electron mobility transistors; microwave field effect transistors; microwave measurement; network analysers; semiconductor device measurement; semiconductor device models; FET model nonlinear charge functions; MODFET; VNNA; direct extraction; load-pull facilities; nonlinear FET Q-V functions; nonlinear HEMT model; quasi-static FET model; time domain large signal measurements; vector nonlinear network analyzer; Capacitance; Charge measurement; Current measurement; DC generators; HEMTs; Microwave FETs; Microwave devices; Signal generators; Time measurement; Voltage;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
