Power amplifier PAE and ruggedness optimization by second-harmonic control

Second-harmonic control is applied to optimize power-added efficiency (PAE) and ruggedness of silicon power amplifiers (PAs). A differential push-pull topology is chosen because it facilitates independent fundamental load and second-harmonic control. Various amplifiers using high-Q passives for fund...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 2003-09, Vol.38 (9), p.1575-1583
Main Authors: Spirito, M., de Vreede, L.C.N., Nanver, L.K., Weber, S., Burghartz, J.N.
Format: Article
Language:English
Subjects:
Amplifiers
Circuits
Communication systems
Differential amplifiers
Digital
Digital communication
Distributed control
Operational amplifiers
Optimization
Power amplifiers
Power generation
Robustness
Ruggedness
Silicon
Topology
Voltage
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Summary:Second-harmonic control is applied to optimize power-added efficiency (PAE) and ruggedness of silicon power amplifiers (PAs). A differential push-pull topology is chosen because it facilitates independent fundamental load and second-harmonic control. Various amplifiers using high-Q passives for fundamental and harmonic matching have been implemented. Experiments demonstrated an increase in PAE and ruggedness simultaneously even under high mismatch conditions. The amplifiers are operating in class-AB and are intended for use in the digital communication system (DCS) band.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2003.815918