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Abstract
The paper describes a method to derive large-signal S-parameters as functions of the output power with application to calculating the large-signal power gain of an FET amplifier. The S-parameter S22 of a microwave power FET is used to describe the nonlinearity of its large-signal output impedance, based on which the output at a given load is determined from the measured data. The large-signal S-parameters of the FET can be expressed as a quadratic function of the output power, and are used to compute the gain compression effect of the FET amplifier. This is found to be in good agreement with experimental results.
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Schedule a callMore From: IEE Proceedings G (Electronic Circuits and Systems)
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