DocumentCode
780596
Title
Ultra-wideband CMOS low noise amplifier
Author
Kim, C.-W. ; Jung, M.-S. ; Lee, S.-G.
Author_Institution
Sch. of Eng., Inf. & Commun. Univ., Daejeon, South Korea
Volume
41
Issue
7
fYear
2005
fDate
3/31/2005 12:00:00 AM
Firstpage
384
Lastpage
385
Abstract
A two-stage ultra-wideband CMOS low noise amplifier (LNA) is proposed. The first stage is optimised for wideband input matching and low noise figure, while the second stage is optimised to extend the -3 dB bandwidth of the overall amplifier. The combination of stages can provide lower noise figure and wider bandwidth simultaneously over that of previously reported feedback-based CMOS amplifiers. The implemented LNA shows a peak gain of 13.5 dB, more than 8.5 dB of input return loss, and a noise figure of 2.5-7.4 dB over a -3 dB bandwidth from 2 to 9 GHz with DC power consumption of 25.2 mW.
Keywords
CMOS integrated circuits; circuit optimisation; wideband amplifiers; 13.5 dB; 2 to 9 GHz; 25.2 mW; DC power consumption; low noise figure; two-stage ultra-wideband CMOS low noise amplifier; wideband input matching;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20058254
Filename
1421214
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