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Wideband characterization of a Doherty amplifier using behavioral modeling
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för elektronik.
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för elektronik.
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för elektronik.ORCID iD: 0000-0003-2887-049x
2006 (English)In: 67th ARFTG Conference 2006, 2006, p. 190-199Conference paper, Published paper (Refereed)
Abstract [en]

A Doherty amplifier was investigated using behavioral amplifier modeling techniques. A measurement system for simultaneous wide bandwidth (>100 MHz) and large dynamic range (similar to 70 dBc ACLR) sampled measurements that are needed for the behavioral modeling is presented. Both the measurement system and the performance of the Doherty amplifier are described. The findings are that the well known and widely used parallel Hammerstein model, also denoted the memory polynomial model, is well suitable also for modeling and predistortion of Doherty amplifiers, and that a Doherty amplifier can be designed with only minor memory effects. This is seen in the modeling error, which is reduced by 13 dB, compared with a constant gain, using a memoryless polynomial model and only 6 dB further by adding memory to the model.

Place, publisher, year, edition, pages
2006. p. 190-199
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hig:diva-2465DOI: 10.1109/ARFTG.2006.4734374ISI: 000261875200022ISBN: 978-0-7803-9529-9 (print)OAI: oai:DiVA.org:hig-2465DiVA, id: diva2:119127
Conference
67th ARFTG Conference 2006, San Francisco, CA, Jun 16, 2006
Available from: 2007-12-19 Created: 2007-12-19 Last updated: 2018-03-28Bibliographically approved

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Isaksson, MagnusKeskitalo, NiclasRönnow, Daniel

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CiteExportLink to record
Permanent link

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