liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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
Low-Noise Amplifier Design at 5 GHz
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.ORCID iD: 0000-0003-2117-1178
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
2005 (English)In: IMAPS Nordic Annual Conference 2005: Proceedings of a meeting held 11-14 September 2005, Tonsberg, Norway, Curran Associates, Inc., 2005, 227-229 p.Conference paper, Published paper (Refereed)
Abstract [en]

Two different designs of a low-noise amplifier (LNA) at 5 GHz are presented in this paper. The first design uses lumped elements for implementing the matching networks. The second design utilizes distributed element matching networks using microstrip lines. It is shown that the design using lumped element matching networks has difficulties to achieve high performance at a frequency of above 5 GHz and that distributed matching circuits are more adequate compared to the lumped element solution. Experimental results confirm the simulation results based on the LNA design with distributed matching networks

Place, publisher, year, edition, pages
Curran Associates, Inc., 2005. 227-229 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-32319Local ID: 18211ISBN: 9781622761814 (print)OAI: oai:DiVA.org:liu-32319DiVA: diva2:253141
Conference
IMAPS Nordic Annual Conference 2005. 11-14 September 2005, Tonsberg, Norway
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2015-03-18
In thesis
1. Low-Noise Amplifier Design for Ultra-Wideband Systems
Open this publication in new window or tab >>Low-Noise Amplifier Design for Ultra-Wideband Systems
2006 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The low-noise amplifier (LNA) remains a critical block in every receiver front-end. As the development of the widcband, low-power and low-cost wireless systems continues, new LNA topologies and design methodologies have become one of the most interesting challenges in the field of radio frequency system design. Optimally, wideband LNA design methodologies should provide improved receiver sensitivity and thus accurate low-level signal processing. The LNA design must handle trade-offs among LNA topology selection, wideband matching for low noise figure, flat power gain and wideband bias aspects. Another key factor of the wideband radio front-end design refers to the antenna-LNA eo-design. Any loss that occurs before the LNA in the system will substantially degrade the overall receiver sensitivity. In order to reduce losses and thus minimize the noise figure of the front-end, the LNA and the antenna or antenna-system should be designed simultaneously.

The main focus of this thesis has been LNA design for ultra-wideband (UWB) applications. Firstly, an overview of the design techniques for wideband matching networks is given. Then, the way in which some classical single-stage LNA topologies are adapted to UWB specifications is analyzed. To verify the wideband amplifier design principles, both a narrowband LNA for 5.25 GHz and a UWB LNA for 3-5 GHz based on microstrip matching networks were designed, manufactured, and measured. Advanced design techniques, for example electromagnetic simulations of the entire layout of the LNA module were utilized. Optimization techniques and statistical analyses were also used in the design flow. Moreover, a co-design of an antenna-UWB LNA front-end was performed for the minimum noise figure and maximum flat power gain within the entire frequency band. Finally, UWB bias networks implemented with different microstrip elements were studied. It has been shown that, without accurate high-frequency component models and without including highfrequency electromagnetic coupling and component parasitics, LNA and particularly UWB LNA design can result in large errors. A good designapproach has large potential to improve the performance and manufacturing yield of LNAs, especially UWB LNAs.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2006. 44 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1281
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-44987 (URN)LIU-TEK-LIC:62 (ISRN)79038 (Local ID)91-85643-48-3 (ISBN)79038 (Archive number)79038 (OAI)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2015-03-18

Open Access in DiVA

No full text

Authority records BETA

Serban Craciunescu, AdrianaGong, Shaofang

Search in DiVA

By author/editor
Serban Craciunescu, AdrianaGong, Shaofang
By organisation
Department of Science and TechnologyThe Institute of Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 100 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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