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HIGH-GAIN RECONFIGURABLE LNA USING OPTIMIZED Q-FACTOR INDUCTOR AND SWITCHED CAPACITOR

Title
HIGH-GAIN RECONFIGURABLE LNA USING OPTIMIZED Q-FACTOR INDUCTOR AND SWITCHED CAPACITOR
Author
윤태열
Keywords
LNA; Q-factor; reconfigurable; spiral inductor; switched capacitor
Issue Date
2011-05
Publisher
WILEY-BLACKWELL, COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
Citation
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 53, 5, p1069-p1074
Abstract
This letter presents a band-selectable LNA with high gain and low noise in 0.25-mu m RF CMOS technology. The proposed reconfigurable LNA uses two techniques: optimized spiral inductors and a switched capacitor technique. The gain and noise figure of the LNA are improved by using Q-factor optimized inductors, which are designed with an octagonal shape having a peak Q-factor at desired frequency bands. The high Q-factor of the switched capacitor in parallel configuration at the load also increases the gain of the band-selectable LNA. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1069-1074, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25945
URI
http://onlinelibrary.wiley.com/doi/10.1002/mop.25945/abstract
ISSN
0895-2477
DOI
10.1002/mop.25945
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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