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Analytic physics-based expressions for the empirical parameters of the Statz-Pucel MESFET model

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5 Author(s)
S. D'Agostino ; Dept. of Electron. Eng., Rome Univ., Italy ; G. D'Inzeo ; P. Marietti ; L. Tudini
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The authors present a novel approach to the evaluation of the DC parameters of a semiempirical MESFET model: starting from the analytical expression of the drain current derived from a previously proposed physics-based model, they provide a method to calculate the empirical DC parameters of the so-called Raytheon model. The comparison between computed and measured DC characteristics is quite satisfactory on GaAs microwave FETs of 1 μm or more gate length. By adding to the results obtained in this work an adequate model of the stray capacitances, the circuit performance can be optimized using the technological characteristics of active devices

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IEEE Transactions on Microwave Theory and Techniques  (Volume:40 ,  Issue: 7 )