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Effects of One Large Signal on Small Signals in a Memoryless Nonlinear Bandpass Amplifier

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2 Author(s)
Chang, P. ; COMSAT Laboratories, MD ; Shimbo, O.

The theoretical relationships are presented for determining the output amplitude and phase of each small signal when commonly amplified with a large signal by a memoryless nonlinear amplifier. Both the amplitude and phase of each output small signal depend on the input amplitude of the large signal and on the AM/AM and AM/PM characteristics of the nonlinear amplifier. If the nonlinear amplifier is a hard limiter without AM/PM conversion, then the well-known result can also be derived from a general formula developed in this paper. A numerical example is given and confirmed by laboratory measurement.

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Communications, IEEE Transactions on  (Volume:28 ,  Issue: 5 )