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Ultra-wideband COMOS low noise amplifier with simultaneous gain and noise matches

✍ Scribed by Hsien-Yuan Liao; Ching-Ming Tseng; Hwann-Kaeo Chiou

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
234 KB
Volume
50
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

Ultrawideband CMOS low noise amplifier (LNA) using lossy LC ladder is proposed. A lossy LC ladder matching network is combined with conventional inductive degeneration and provides both gain and noise match over multioctave bandwidth. The bandwidth is further enhanced by shunt peaking technique. The explicit formulas are derived in this work to determine the values of resistor and LC ladder elements to meet the gain and noise match conditions. The LNA achieves 10.8‐dB gain with a 3‐dB bandwidth from 1.6 to 13.2 GHz and a minimum noise figure of 3.4 dB under the power consumption of 22 mW. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 158–160, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22996

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