Change search
ReferencesLink to record
Permanent link

Direct link
Ultra-Low Noise and Highly Linear Two-Stage Low Noise Amplifier (LNA)
Linköping University, Department of Electrical Engineering, Electronic Devices.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

An ultra-low noise two-stage LNA design for cellular basestations using CMOS is proposed in this thesis work.  This thesis is divided into three parts. First, a literature survey which intends to bring an idea on the types of LNAs available and their respective outcomes in performances, thereby analyze how each design provides different results and is used for different applications. In the second part, technology comparison for 0.12µm, 0.18µm, and 0.25µm technologies transistors using the IBM foundry PDKs are made to analyze which device has the best noise performance. Finally, in the third phase bipolar and CMOS-based two-stage LNAs are designed using IBM 0.12µm technology node, decided from the technology comparison. In this thesis a two-stage architecture is used to obtain low noise figure, high linearity, high gain, and stability for the LNA. For the bipolar design, noise figure of 0.6dB, OIP3 of 40.3dBm and gain of 26.8dB were obtained. For the CMOS design, noise figure of 0.25dB, OIP3 of 46dBm and gain of 26dB were obtained. Thus, the purpose of this thesis is to analyze the LNA circuit in terms of design, performance, application and various other parameters. Both designs were able to fulfill the design goals of noise figure < 1 dB, OIP3 > 40 dBm, and gain >18 dB.

Place, publisher, year, edition, pages
2011. , 69 p.
Keyword [en]
Low Noise figure LNA, highly linear, basestation LNA, two stage, CMOS, narrowband LNA
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-71355ISRN: LiTH-ISY-EX--11/4496--SEOAI: diva2:447654
Subject / course
Electronic Devices
Available from: 2011-10-20 Created: 2011-10-12 Last updated: 2011-10-20Bibliographically approved

Open Access in DiVA

fulltext(2157 kB)5295 downloads
File information
File name FULLTEXT02.pdfFile size 2157 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Electronic Devices
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 5295 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 350 hits
ReferencesLink to record
Permanent link

Direct link