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Outphasing Energy Recovery Amplifier With Resistance Compression for Improved Efficiency

dc.contributor.authorDawson, Joel L.
dc.contributor.authorPerreault, David J.
dc.contributor.authorGodoy, Philip Andrew
dc.date.accessioned2010-03-11T15:26:50Z
dc.date.available2010-03-11T15:26:50Z
dc.date.issued2009-12
dc.date.submitted2009-09
dc.identifier.issn0018-9480
dc.identifier.urihttp://hdl.handle.net/1721.1/52496
dc.description.abstractWe describe a new outphasing energy recovery amplifier (OPERA) which replaces the isolation resistor in the conventional matched combiner with a resistance-compressed rectifier for improved efficiency. The rectifier recovers the power normally wasted in the isolation resistor back to the power supply, while a resistance compression network (RCN) reduces the impedance variation of the rectifier as the output power varies. Because the combiner requires a fixed resistance at the isolation port to ensure matching and isolation between the two outphased power amplifiers (PAs), the RCN serves to maintain high linearity as well as high efficiency in the switching-mode PAs. For demonstration, a prototype OPERA system is designed and implemented with discrete components at an operating frequency of 48 MHz, delivering 20.8 W peak power with 82.9% PAE. The measurement results show an efficiency improvement from 17.9% to 42.0% for a 50-kHz 16-QAM signal with a peak-to-average power ratio of 6.5 dB.en
dc.description.sponsorshipMassachusetts Institute of Technology. Center for Integrated Circuits and Systemsen
dc.description.sponsorshipMassachusetts Institute of Technology. Deshpande Centeren
dc.language.isoen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/tmtt.2009.2033976en
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en
dc.sourceIEEEen
dc.subjectresistanceen
dc.subjectradio-frequency (RF) power amplifieren
dc.subjectoutphasingen
dc.subjectLinear amplification with nonlinear components (LINC)en
dc.titleOutphasing Energy Recovery Amplifier With Resistance Compression for Improved Efficiencyen
dc.title.alternativeInstitute of Electrical and Electronics Engineersen
dc.typeArticleen
dc.identifier.citationGodoy, P.A., D.J. Perreault, and J.L. Dawson. “Outphasing Energy Recovery Amplifier With Resistance Compression for Improved Efficiency.” Microwave Theory and Techniques, IEEE Transactions on 57.12 (2009): 2895-2906. © 2009 IEEEen
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.approverPerreault, David J.
dc.contributor.mitauthorDawson, Joel L.
dc.contributor.mitauthorPerreault, David J.
dc.contributor.mitauthorGodoy, Philip Andrew
dc.relation.journalIEEE Transactions on Microwave Theory and Techniquesen
dc.eprint.versionFinal published versionen
dc.type.urihttp://purl.org/eprint/type/JournalArticleen
eprint.statushttp://purl.org/eprint/status/PeerRevieweden
dspace.orderedauthorsGodoy, P.A.; Perreault, D.J.; Dawson, J.L.en
dc.identifier.orcidhttps://orcid.org/0000-0002-0746-6191
mit.licensePUBLISHER_POLICYen
mit.metadata.statusComplete


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