A power re-use technique for improved efficiency of outphasing microwave power amplifiers

Authors
Langridge, R Thornon, T Asbeck, PM Larson, LE
Citation
R. Langridge et al., A power re-use technique for improved efficiency of outphasing microwave power amplifiers, IEEE MICR T, 47(8), 1999, pp. 1467-1470
Citations number
9
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN journal
00189480 → ACNP
Volume
47
Issue
8
Year of publication
1999
Pages
1467 - 1470
Database
ISI
SICI code
0018-9480(199908)47:8<1467:APRTFI>2.0.ZU;2-P
Abstract
An improved power re-use technique is introduced for application to outphas ed microwave power amplifiers. The technique allows a significant portion o f the wasted out-of-phase components of the signal to be returned to the po wer supply, resulting in substantial improvements in overall power-amplifie r efficiency. A peak re-use RF-to-DC efficiency of 63% was obtained at 1.96 GHz.