DocumentCode
1185741
Title
Effect of modulation scheme on LINC transmitter power efficiency
Author
Sundstrom, Lars ; Johansson, Mikael
Author_Institution
Dept. of Appl. Electron., Lund Univ.
Volume
30
Issue
20
fYear
1994
fDate
9/29/1994 12:00:00 AM
Firstpage
1643
Lastpage
1645
Abstract
The authors describe how the power efficiency of an LINC (linear amplification with nonlinear components) transmitter is affected by the modulation scheme when using a conventional power combiner to recombine the constant envelope signals. The efficiency originating from the recombining peak at 60% for low-level modulation schemes but decreases to below 20% for high level schemes
Keywords
amplification; linearisation techniques; modulation; power amplifiers; radio transmitters; radiofrequency amplifiers; LINC transmitter; constant envelope signals; high level schemes; linear amplification; low-level schemes; modulation scheme; nonlinear components; power combiner; power efficiency;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19941116
Filename
328506
Link To Document