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Journal Article Adaptively Linearised MMIC Power Amplifier for W-CDMA Applications
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Authors
Y.S. Noh, I.B. Yom, J.H. Park, C.S. Park
Issue Date
2004-09
Citation
Electronics Letters, v.40, no.20, pp.1237-1238
ISSN
0013-5194
Publisher
IET
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1049/el:20046323
Project Code
04MR1900, Development of Satellite Communication System for Communication,Ocean and Meteorolgical Satellite, Seongpal Lee
Abstract
A high-linearity and high-efficiency MMIC power amplifier' is proposed that adopts a new on-chip adaptive bias circuit, which simultaneously improves efficiency at the low output power level and linearity at the high output power level. The intelligent W-CDMA power amplifier using the adaptive bias circuit extends the maximum linear output power of 0.6 dB and exhibits an improvement of average power usage efficiency of 1.85 times.
KSP Keywords
Adaptive bias, Average Power, High output power, MMIC power amplifier, On-chip, Power Levels, Power Usage, bias circuit, high efficiency, high linearity, power amplifiers(PAs)