dc.contributor
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor
Universitat Politècnica de Catalunya. CMC - Control, Monitorització i Comunicacions
dc.contributor.author
Gilabert Pinal, Pere Lluís
dc.contributor.author
Montoro López, Gabriel
dc.contributor.author
Vizarreta Paz, Pedro Pablo
dc.identifier
Gilabert, Pere L.; Montoro, G.; Vizarreta, P. Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers. A: German Microwave Conference. "GeMIC 2012 - The 7th German Microwave Conference". 2012, p. 1-4.
dc.identifier
978-398126684-9
dc.identifier
https://hdl.handle.net/2117/19140
dc.identifier
10.1515/freq-2012-0101
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.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.relation
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=06185140
dc.rights
Restricted access - publisher's policy
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Xarxes de banda ampla
dc.subject
Broadband amplifiers
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Amplifier distortion
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envelope amplifier
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envelope tracking
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envelope-dependent digital predistortion
dc.subject
Banda ampla, Sistemes de comunicació de
dc.title
Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers
dc.type
Conference report
