DocumentCode
2163632
Title
Digital Control of Power Amplifiers for Wireless Communications
Author
Asbeck, P.M. ; Galton, I. ; Larson, L.E. ; Zhang, X. ; Iwamoto, M. ; Hinrichs, J. ; Keyzer, J.
Author_Institution
Electrical and Computer Engineering Department, University of California, San Diego, La Jolla, CA, USA 92093-0407. E-mail: asbeck@ece.ucsd.edu
fYear
2001
fDate
24-26 Sept. 2001
Firstpage
1
Lastpage
4
Abstract
The advance of CMOS-based digital circuits enables new strategies for optimisation of wireless transmitters. Co-design of DSP algorithms and power amplifier characteristics can lead to improved efficiency and linearity through a variety of strategies, including: a) DSP control over bias conditions, particularly the power supply voltage; b) predistortion, in simple amplifiers, and in compound architectures such as LINC and Doherty amplifiers; and c) DSP generation of digital input signals for switching amplifiers. We envision for the future a generation of "smart power amplifiers" in which DSP optimization of amplifier parameters is carried out for changing environments.
Keywords
Communication system control; Digital circuits; Digital control; Digital signal processing; Linearity; Power amplifiers; Power generation; Transmitters; Voltage control; Wireless communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2001. 31st European
Conference_Location
London, England
Type
conf
DOI
10.1109/EUMA.2001.339043
Filename
4140111
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