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dc.contributor.authorBarton, Taylor W.
dc.contributor.authorPerreault, David J.
dc.date.accessioned2016-01-26T01:26:41Z
dc.date.available2016-01-26T01:26:41Z
dc.date.issued2014-09
dc.date.submitted2014-02
dc.identifier.issn1549-8328
dc.identifier.issn1558-0806
dc.identifier.urihttp://hdl.handle.net/1721.1/100989
dc.description.abstractA lossless multi-way outphasing and power combining system for microwave power amplification is presented. The architecture addresses one of the primary drawbacks of Chireix outphasing; namely, the sub-optimal loading conditions for the branch power amplifiers. In the proposed system, four saturated power amplifiers interact through a lossless power combining network to produce nearly resistive load modulation over a 10:1 range of output powers. This work focuses on two microstrip-based power combiner implementations: a hybrid microstrip/discrete implementation using a combination of microstrip transmission line sections with discrete shunt elements, and an all-microstrip implementation incorporating open-circuited radial stubs. We demonstrate and compare these techniques in a 2.14 GHz power amplifier system. With the all-microstrip implementation, the system demonstrates a peak CW drain efficiency of 70% and drain efficiency of over 60% over a 6.5-dB outphasing output power range with a peak power of over 100 W. We demonstrate W-CDMA modulation with 55.6% average modulated efficiency at 14.1 W average output power for a 9.15-dB peak to average power ratio (PAPR) signal. The performance of this all-microstrip system is compared to that of the proposed hybrid microstrip/discrete version and a previously reported implementation in discrete lumped-element form.en_US
dc.description.sponsorshipMassachusetts Institute of Technology. Center for Integrated Circuits and Systemsen_US
dc.description.sponsorshipMassachusetts Institute of Technology. Microsystems Technology Laboratories. GaN Energy Initiativeen_US
dc.language.isoen_US
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/tcsi.2014.2321203en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceMIT web domainen_US
dc.titleFour-Way Microstrip-Based Power Combining for Microwave Outphasing Power Amplifiersen_US
dc.typeArticleen_US
dc.identifier.citationBarton, Taylor W., and David J. Perreault. “Four-Way Microstrip-Based Power Combining for Microwave Outphasing Power Amplifiers.” IEEE Transactions on Circuits and Systems I: Regular Papers 61, no. 10 (October 2014): 2987–2998.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.mitauthorBarton, Taylor W.en_US
dc.contributor.mitauthorPerreault, David J.en_US
dc.relation.journalIEEE Transactions on Circuits and Systems I: Regular Papersen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsBarton, Taylor W.; Perreault, David J.en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-0746-6191
mit.licenseOPEN_ACCESS_POLICYen_US


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