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Improved millimeter-wave mixer performance analysis at cryogenic temperatures

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3 Author(s)
Siegel, P.H. ; Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA ; Mehdi, I. ; East, J.

The results of a 600-GHz mixer performance analysis using an improved model for computing the Schottky diode capacitance-voltage (C-V) relationship are presented. The computed C-V data for a realistic submillimeter-wave mixer diode are given as a function of physical temperature and compared to the standard analytic expression based on a solution of Poisson's equation. Both C-V relationships are used to predict the performance of an ideally terminated 600 GHz mixer operating at 300, 140, 80, and 30 K. It is shown that the drift-diffusion model more accurately describes the mixer performance when the physical temperature is reduced below approximately=100 K.<>

Published in:

Microwave and Guided Wave Letters, IEEE  (Volume:1 ,  Issue: 6 )