Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Design and implementation of a low-noise high-linearity variable gain amplifier for high speed transceivers
Linköping University, Department of Electrical Engineering, Electronics System. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The variable gain amplifier (VGA) is utilized in various applications of remote sensing and communication equipments. Applications of the variable gain amplifier (VGA) include radar, ultrasound, wireless communication and even speech analysis. These applications use the variable gain amplifier (VGA) to enhance dynamic performance.

The purpose of the thesis work is to implement a high linearity and low noise variable gain amplifier in 150 nm CMOS technology, for an analog-front-end of a transceiver. Two different amplifier architectures are designed and compared. First architecture is an amplifier with diode connected load and second architecture is a source degenerative amplifier. The performance of the amplifier with diode connected load is lower than the source degenerative amplifier in terms of gain, power, linearity, noise and bandwidth. So, the source degenerative amplifier is selected for implementation. The three stage variable gain differential amplifier is implemented with selected architecture.

The implemented three stage variable gain differential amplifier have gain range of -541.5 mdB to 22.46 dB with step size of approximately 0.3 dB and total gain steps are 78. The -3 dB bandwidth achieved is 953.3 MHz. The third harmonic distortion (HD3) is -45 dBc at 250 mV and the power is 35 mW at 1.8 V supply source.

Place, publisher, year, edition, pages
2012. , 99 p.
Keyword [en]
Transceiver, Analog, Amplifier, Linearity, Noise, Gain, Bandwidth, VGA, HD3.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-73449ISRN: LiTH-ISY-EX--11/4543--SEOAI: oai:DiVA.org:liu-73449DiVA: diva2:488651
External cooperation
Fraunhofer Institute for Integrated Cirucits (IIS), Erlangen, Germany
Subject / course
Electronics Systems
Presentation
2011-12-21, Nollstället, Linköping University, S-581 83 Linköping, Sweden, Linköping, 02:25 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-03-06 Created: 2012-01-04 Last updated: 2012-03-06Bibliographically approved

Open Access in DiVA

fulltext(2329 kB)1309 downloads
File information
File name FULLTEXT02.pdfFile size 2329 kBChecksum SHA-512
01960ee315e01b47105b5f66132451f39bd4cb30ae19eeea0bbdcedf7e2420e4d8adb2855edeb7ecdec439f175520d16c631e2d3eef69e22e54a906bf6456d95
Type fulltextMimetype application/pdf

By organisation
Electronics SystemThe Institute of Technology
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 1310 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

urn-nbn

Altmetric score

urn-nbn
Total: 647 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf