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Design and Evaluation of an Ultra-Low PowerLow Noise Amplifier LNA
Linköping University, Department of Electrical Engineering.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This master thesis deals with the study of ultra low power Low Noise Amplifier (LNA) for use inmedical implant device. Usually, low power consumption is required for a long battery lifetime andlonger operation. The target technology is 90nm CMOS process.First basic principle of LNA is discussed. Then based on a literature review of LNA design, theproposed LNA is presented in sub-threshold region which reduce power consumption through scalingthe supply voltage and through scaling current.The circuit implementation and simulations is presented to testify the performance of LNA .Besides thepower consumption simulated under the typical supply voltage (1V), it is also measured under someother low supply voltages (down to 0.5V) to investigate the minimum power consumption and theminimum noise figure. Evaluation results show that at a supply voltage of 1V the LNA performs a totalpower consumption of 20mW and a noise of 1dB. Proper performance is achieved with a current ofdown to 200uA and supply voltage of down to 0.45V, and a total power consumption of 200uW

Place, publisher, year, edition, pages
2009. , 64 p.
Keyword [en]
CMOS, Low Noise Amplifier (LNA), Ultra Low Power, Sub-threshold region, Radio Frequency Integrated Circuit (RFIC)
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-50923ISRN: LiTH-ISY-EX - - 09/4257 - - SEOAI: diva2:272335
2009-08-24, Filtret, linkoping university, linkoping,sweden, 01:15 (English)
Available from: 2009-10-15 Created: 2009-10-15 Last updated: 2009-10-15Bibliographically approved

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yasami, saeed
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