Abstract
A novel approach to extract the state functions of microwave FET-type quasi-static models from large-signal waveform measurements is described. The approach employs a one-port quasi-static nonlinear state functions frequency domain-based extraction method together with a procedure to transform, by proper loading at the control terminals, the two-port extraction problem into multiple one-port extraction problems. The main advantage of this approach is that it provides directly the charge-voltage state functions, without the need to perform the integration of the incremental capacitance-voltage characteristics as required by time domain-based approaches. The performance of the resulting approach is assessed by extracting the nonlinear state functions of a HEMT quasi-static model from large-signal microwave measurements
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