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Computationally efficient real-time digital predistortion architectures for envelope tracking power amplifiers
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 | 2014-02-14T14:51:35Z |
dc.date.available | 2014-02-14T14:51:35Z |
dc.date.created | 2013-03-05 |
dc.date.issued | 2013-03-05 |
dc.identifier.citation | Gilabert, Pere L.; Montoro, G. Computationally efficient real-time digital predistortion architectures for envelope tracking power amplifiers. "International journal of microwave and wireless technologies", 05 Març 2013, vol. 5, núm. 2, p. 187-193. |
dc.identifier.issn | 1759-0787 |
dc.identifier.uri | http://hdl.handle.net/2117/21589 |
dc.description.abstract | This paper presents and discusses two possible real-time digital predistortion (DPD) architectures suitable for envelope tracking (ET) power amplifiers (PAs) oriented at a final computationally efficient implementation in a field programmable gate array (FPGA) device. In ET systems, by using a shaping function is possible to modulate the supply voltage according to different criteria. One possibility is to use slower versions of the original RF signal’s envelope in order to relax the slew-rate (SR) and bandwidth (BW) requirements of the envelope amplifier (EA) or drain modulator. The nonlinear distortion that arises when performing ET with a supply voltage signal that follows both the original and the slow envelope will be presented, as well as the DPD function capable of compensating for these unwanted effects. Finally, two different approaches for efficiently implementing the DPD functions, a polynomial-based and a look-up table-based, will be discussed. |
dc.format.extent | 7 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència |
dc.subject.lcsh | Power amplifiers |
dc.subject.lcsh | Modeling |
dc.subject.lcsh | Simulation methods |
dc.subject.other | Modeling |
dc.subject.other | Power amplifiers and linearizers |
dc.subject.other | Simulation and characterizations of devices and circuits |
dc.title | Computationally efficient real-time digital predistortion architectures for envelope tracking power amplifiers |
dc.type | Article |
dc.subject.lemac | Amplificadors de potència |
dc.subject.lemac | Modelatge |
dc.subject.lemac | Simulació, Mètodes de |
dc.contributor.group | Universitat Politècnica de Catalunya. CMC - Control, Monitorització i Comunicacions |
dc.identifier.doi | 10.1017/S1759078713000135 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://journals.cambridge.org/action/displayAbstract?aid=8884061 |
dc.rights.access | Open Access |
local.identifier.drac | 12481779 |
dc.description.version | Postprint (published version) |
local.citation.author | Gilabert, Pere L.; Montoro, G. |
local.citation.publicationName | International journal of microwave and wireless technologies |
local.citation.volume | 5 |
local.citation.number | 2 |
local.citation.startingPage | 187 |
local.citation.endingPage | 193 |
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