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Nonlinear amplifier effects in communications systems

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4 Author(s)
Cheng-Po Liang ; Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA ; Je-Hong Jong ; Stark, W.E. ; East, J.R.

This paper introduces a figure-of-merit to investigate tradeoffs between amplifiers and modulation waveforms in complex digital communications systems. Class-AB amplifiers are investigated with a variety of modulation schemes to better understand the relations between amplifier efficiency, amplifier distortion, signal in-band and adjacent channel interference, and power consumption. The goal is to better understand the tradeoffs needed to design low-energy communications systems

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:47 ,  Issue: 8 )