Title:
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A dual-band outphasing transmitter using broadband class E power amplifiers
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Author:
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Ruiz, Maria Nieves; Marante, Reinel; Rizo, Leysi; García, José Angel; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CMC - Control, Monitorització i Comunicacions |
Abstract:
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In this paper, a dual-band outphasing
transmitter (able of operating either at 770 MHz or 960 MHz
frequency bands) is presented. Two broadband RF power
amplifiers (PAs) have been designed over packaged GaN HEMT
devices, switching close to the nominal zero-voltage and zerovoltage-derivative
class E conditions. A reactive combiner, using
transmission lines of appropriate electrical lengths at both bands,
together with compensating reactances, allows positioning the
drain impedance loci to produce high efficiency and good
dynamic range profiles. Average drain efficiency figures over
68% and 38% have been measured for WCDMA signals with a
peak-to-average power ratio (PAPR) of 5.1 dB and 8.4 dB,
respectively. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica -Power amplifiers -Chireix -Class E -Efficiency -GaN HEMT -Power amplifier -Outphasing transmitter -Amplificadors de potència |
Rights:
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Document type:
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Article - Published version Conference Object |
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