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Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers
dc.contributor.author | Vizarreta Paz, Pedro Pablo |
dc.contributor.author | Gilabert Pinal, Pere Lluís |
dc.contributor.author | Montoro López, Gabriel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2013-01-31T15:49:50Z |
dc.date.created | 2012-12-12 |
dc.date.issued | 2012-12-12 |
dc.identifier.citation | Vizarreta, P.; Gilabert, Pere L.; Montoro, G. Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers. "Frequenz - Journal of RF-Engineering and Telecommunications", 12 Desembre 2012, vol. 66, núm. 11/12, p. 323-329. |
dc.identifier.issn | 2191-6349 |
dc.identifier.uri | http://hdl.handle.net/2117/17549 |
dc.description.abstract | This paper presents a study on the trade-off between the envelope’s slew-rate and the drain efficiency when slower envelopes are considered to dynamically supply the power amplifier (PA). This paper discusses a method to limit the slew-rate (and consequently the bandwidth) of the signal’s envelope. Moreover, since the envelope tracking (ET) technique using a slower version of the original envelope introduces nonlinear distortion, slow envelope dependent predistortion has to be also incorporated in the design of ET PAs. Experimental results showed that it is possible to find a compromise between the bandwidth and slew-rate reduction (necessary to cope with the specific envelope amplifier requirements) and the amount of drain efficiency degradation suffered due to the use of a slower version of the original envelope. |
dc.format.extent | 7 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques |
dc.subject.lcsh | Power amplifiers |
dc.subject.lcsh | Microwaves |
dc.subject.other | amplifier distortion |
dc.subject.other | envelope-dependent digital predistortion |
dc.subject.other | efficiency |
dc.subject.other | envelope tracking |
dc.subject.other | envelope amplifier |
dc.subject.other | slew-rate |
dc.title | Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers |
dc.type | Article |
dc.subject.lemac | Amplificadors de potència |
dc.subject.lemac | Microones |
dc.contributor.group | Universitat Politècnica de Catalunya. CMC - Control, Monitorització i Comunicacions |
dc.identifier.doi | 10.1515/freq-2012-0101 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.degruyter.com/dg/viewarticle/j$002ffreq.2012.66.issue-11-12$002ffreq-2012-0101$002ffreq-2012-0101.xml |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 11234520 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Vizarreta, P.; Gilabert, Pere L.; Montoro, G. |
local.citation.publicationName | Frequenz - Journal of RF-Engineering and Telecommunications |
local.citation.volume | 66 |
local.citation.number | 11/12 |
local.citation.startingPage | 323 |
local.citation.endingPage | 329 |
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