Title :
Improved millimeter-wave mixer performance analysis using a drift diffusion capacitance model
Author :
Mehdi, I. ; Siegel, P.H. ; East, J.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The capacitance-voltage characteristics of a Schottky diode as derived from Poisson´s equation predicts erroneously high values of capacitance for large forward bias. The use of this capacitance model predicts temperature-dependent mixer noise-performance in contradiction with experimentally measured trends. It is shown that by using a drift-diffusion model for the diode capacitance the computed mixer performance is in better agreement with experiments. The need for better diode models to accurately predict high-frequency temperature-dependent mixer noise performance is also emphasized.<>
Keywords :
Schottky-barrier diodes; capacitance; mixers (circuits); semiconductor device models; solid-state microwave devices; Schottky diode; capacitance-voltage characteristics; diode models; drift diffusion capacitance model; high frequency temperature dependent noise; millimeter-wave mixer performance analysis; Acoustical engineering; Capacitance; Millimeter wave technology; Performance analysis; Predictive models; Schottky diodes; Space technology; Submillimeter wave technology; Temperature; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147150
