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Frequency-domain analysis of strongly nonlinear circuits using a consistent large-signal model

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1 Author(s)
Narhi, T. ; Eur. Space Res. & Technol. Centre, Noordwijk

This paper describes an analysis method that extends the applicability of the frequency-domain methods to strongly nonlinear circuits. Nonlinearities are described with Chebyshev expansions which are evaluated with a numerically stable three-term recurrence formula. The method is coupled with a novel, measurement-based consistent modeling approach which allows improved accuracy in describing the frequency-dependence of the measured small-signal parameters. The analysis method and the modeling approach are verified by comparing measurements and calculations on a MESFET mixer, driven with two and three tones

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:44 ,  Issue: 2 )