DocumentCode
793414
Title
Linear modulators based on RF synthesis: realization and analysis
Author
Chan, Kam-yuen ; Bateman, Andrew
Author_Institution
Centre for Commun. Res., Bristol Univ., UK
Volume
42
Issue
6
fYear
1995
fDate
6/1/1995 12:00:00 AM
Firstpage
321
Lastpage
333
Abstract
A technique for generating a gain and phase modulated high power radio signal is described using RF synthesis. The realization, which uses a unique twin VCO design, can give a theoretical near 100% amplifier efficiency with excellent linearity. A number of architectures are presented supported by both analytical and simulation results. Laboratory tests have verified the predicted performance for π/4 QPSK modulation
Keywords
frequency synthesizers; linear network analysis; modulators; phase modulation; quadrature phase shift keying; voltage-controlled oscillators; π/4 QPSK modulation; RF synthesis; gain modulated radio signal; high power radio signal; linear modulators; phase modulated radio signal; twin VCO design; Analytical models; Linearity; Phase modulation; Power generation; RF signals; Radio frequency; Radiofrequency amplifiers; Signal generators; Signal synthesis; Voltage-controlled oscillators;
fLanguage
English
Journal_Title
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
Publisher
ieee
ISSN
1057-7122
Type
jour
DOI
10.1109/81.390264
Filename
390264
Link To Document