dc.contributor.author | Duffy, Maxwell R | |
dc.contributor.author | Lasser, Gregor | |
dc.contributor.author | Olavsbråten, Morten | |
dc.contributor.author | Berry, Eric | |
dc.contributor.author | Popovic, Zoya | |
dc.date.accessioned | 2019-08-23T08:01:26Z | |
dc.date.available | 2019-08-23T08:01:26Z | |
dc.date.created | 2019-01-20T21:41:32Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | IEEE transactions on microwave theory and techniques. 2018, 66 (12), 5652-5663. | nb_NO |
dc.identifier.issn | 0018-9480 | |
dc.identifier.uri | http://hdl.handle.net/11250/2609905 | |
dc.description.abstract | The goal of the work presented in this paper is to demonstrate an efficient method of amplifying multiple concurrent signals over a large bandwidth using a supply modulation approach. A single-stage octave bandwidth (2–4 GHz) power amplifier (PA) with greater than 10-W output power and drain efficiency ranging from 48%–60% is presented. The amplifier is tested with several reduced-bandwidth supply modulation trajectories that are constructed as an even-termed power series of a 10-MHz LTE signal envelope. A greater than 30% point increase in $\eta _{D}$ is achieved while maintaining less than −45-dB ACPR with digital predistortion (DPD). Two 10-MHz LTE signals with 800-MHz spacing are then amplified using a similar bandwidth-reduction technique. A greater than 20% point increase in $\eta _{D}$ is seen with an improvement in linearity through the use of multidimensional DPD. The method presented here can be extended to more than two concurrent signals of arbitrary spacing for a PA with large RF bandwidth. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | IEEE | nb_NO |
dc.title | Efficient Multisignal 2–4-GHz Power Amplifier With Power Tracking | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 5652-5663 | nb_NO |
dc.source.volume | 66 | nb_NO |
dc.source.journal | IEEE transactions on microwave theory and techniques | nb_NO |
dc.source.issue | 12 | nb_NO |
dc.identifier.doi | 10.1109/TMTT.2018.2879344 | |
dc.identifier.cristin | 1661612 | |
dc.description.localcode | This article will not be available due to copyright restrictions | nb_NO |
cristin.unitcode | 194,63,35,0 | |
cristin.unitname | Institutt for elektroniske systemer | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |