A New Power Combining and Outphasing Modulation System for High-Efficiency Power Amplification
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Perreault New Power Combining.pdf
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801.3 KB
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c58a6e17d641eddd58de6b8ed750f3b3
Author(s)
Perreault, David J.
Date Issued
August 2011
Journal
IEEE Transactions on Circuits and Systems I: Regular Papers
Citation
Perreault, David J. “A New Power Combining and Outphasing Modulation System for High-Efficiency Power Amplification.” IEEE Transactions on Circuits and Systems I: Regular Papers 58, no. 8 (August 2011): 1713–1726.
Version
Author's final manuscript
Abstract
This paper describes a new power combining and outphasing system that provides both high efficiency and linear output control. Whereas conventional outphasing systems utilize two power amplifiers, the system introduced here combines power from four or more amplifiers. The proposed technique overcomes the loss and reactive loading problems of previous outphasing systems. It provides ideally lossless power combining, along with resistive loading of the individual power amplifiers over a very wide output power range. A conceptual development illustrating the operating principles of the system is provided, along with a representative design, detailed analysis, and supporting simulations. The relation of the proposed technique to multi-level resistance compression is also described. It is anticipated that the new power combining and outphasing modulation approach will find widespread use in applications where both high linearity and high efficiency are desired.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1109/TCSI.2011.2106230
