dc.contributor.author | Barton, Taylor W. | |
dc.contributor.author | Perreault, David J. | |
dc.date.accessioned | 2016-01-26T01:26:41Z | |
dc.date.available | 2016-01-26T01:26:41Z | |
dc.date.issued | 2014-09 | |
dc.date.submitted | 2014-02 | |
dc.identifier.issn | 1549-8328 | |
dc.identifier.issn | 1558-0806 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/100989 | |
dc.description.abstract | A 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.sponsorship | Massachusetts Institute of Technology. Center for Integrated Circuits and Systems | en_US |
dc.description.sponsorship | Massachusetts Institute of Technology. Microsystems Technology Laboratories. GaN Energy Initiative | en_US |
dc.language.iso | en_US | |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1109/tcsi.2014.2321203 | en_US |
dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
dc.source | MIT web domain | en_US |
dc.title | Four-Way Microstrip-Based Power Combining for Microwave Outphasing Power Amplifiers | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Barton, 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.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
dc.contributor.mitauthor | Barton, Taylor W. | en_US |
dc.contributor.mitauthor | Perreault, David J. | en_US |
dc.relation.journal | IEEE Transactions on Circuits and Systems I: Regular Papers | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Barton, Taylor W.; Perreault, David J. | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-0746-6191 | |
mit.license | OPEN_ACCESS_POLICY | en_US |