Abstract | ||
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This paper presents a transmitter architecture which is less sensitive to power amplifier AM/AM and AM/PM conversions. Indeed, most radio communication standards employ nonconstant envelope modulation such as in the 802.11 series. Owing to power amplifiers' nonlinearities, distortions on the modulations degrade the overall transmitter performance. As a consequence, linearization methods, such as envelope elimination and restoration, have to be employed. The architecture relies on the transformation of a nonconstant envelope modulation to a constant or switched one. This signal coding enables the efficient amplification of the signal without undergoing power amplifier distortions. The envelope variation is restored by bandpass filtering just after the power amplifier |
Year | DOI | Venue |
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2006 | 10.1109/TCSII.2005.854594 | Circuits and Systems II: Express Briefs, IEEE Transactions |
Keywords | Field | DocType |
band-pass filters,linearisation techniques,modulation,power amplifiers,radio transmitters,radiocommunication,telecommunication standards,AM/AM conversions,AM/PM conversions,bandpass filtering,envelope elimination,envelope restoration,linearization techniques,nonconstant envelope modulation,power amplifiers,radio communication standards,signal coding,transmitter architecture,Linearization techniques,pulsewidth modulation (PWM),sigma–,delta (,transceivers | Transmitter,Transceiver,Band-pass filter,Modulation,Electronic engineering,Envelope detector,Electrical engineering,Linearization,Mathematics,Amplifier,Modulation (music) | Journal |
Volume | Issue | ISSN |
53 | 1 | 1549-7747 |
Citations | PageRank | References |
26 | 3.94 | 1 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Berland, C. | 1 | 26 | 3.94 |
Hibon, I. | 2 | 26 | 3.94 |
Bercher, J.-F. | 3 | 59 | 8.53 |
Villegas, M. | 4 | 26 | 4.27 |