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Wideband RF Frontend  Design for Flexible Radio Receiver
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
2011 (English)In: International Symposium on Integrated Circuits (ISIC), Singapore, 2011, 220-223 p.Conference paper, Published paper (Other academic)
Abstract [en]

A wideband RF frontend for flexible radio applications is presented. A target is the performance adequate for multistandard 3G/ 4G systems operating in frequency range 0.8-6 GHz. Because of relaxed requirements on band select filters, more demands are placed on linearity while the necessary noise performance is assured. We discuss architecture with Low Noise Transconductance Amplifier (LNTA) and a passive mixer terminated by a low impedance load. One variant of it is a Miller integrator where its input impedance is upconverted by the mixer and provides partial attenuation for blockers at RF. We also investigate a variant with a capacitive load followed by a high impedance transconductance amplifier (TCA). In either variant there is a tradeoff between the frontend NF and IP3, and also between NF and the blocker attenuation. Optimization of the 65 nm CMOS frontend is attained by careful sizing of the mixer switches. The frontend simulation results show NF <; 3 dB, IIP3 >; +4 dBm and blocker attenuation >; 20 dB. Finally, we also discuss the demands placed on the A/D converter resolution in terms of the frontend and the receiver overall NF.

Place, publisher, year, edition, pages
Singapore, 2011. 220-223 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-73031DOI: 10.1109/ISICir.2011.6131917ISBN: 978-1-61284-863-1 (print)OAI: oai:DiVA.org:liu-73031DiVA: diva2:464996
Conference
2011 International Symposium on Integrated Circuits, ISIC 2011; SingaporeSingapore; Singapore
Available from: 2011-12-14 Created: 2011-12-14 Last updated: 2014-10-10

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Qazi, FahadDuong, Quoc TaiDabrowski, Jerzy

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CiteExportLink to record
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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
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  • asciidoc
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