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A Computational Load-Pull Method for TCAD Optimization of RF-Power Transistors in Bias-Modulation Applications
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för elektronik.
FTE Uppsala.
FTE Uppsala.
2008 (English)In: 2008 European Microwave Integrated Circuits Conference (EuMIC), 2008, p. 222-225Conference paper, Published paper (Refereed)
Abstract [en]

Abstract— In this paper a method for TCAD evaluation of RF-Power transistors for high-efficiency operation using drain bias-modulation is presented. The method is based on large signal time-domain transient computational load-pull. With the method, intrinsic device parasitics and mechanisms affecting device efficiency under drain bias modulation can be investigated and optimized for the application making it very useful for RFIC design. A case study has been done on a CMOS compatible LDMOS. For verification under dynamic operation two-tone signals with varying envelope has been simulated. The results show a possible 15% increase in the efficiency of a modulated signal for the studied device at the expense of increased phase distortion observable also in the time-domain waveforms generated. Since the method is based on TCAD it is also useful in the investigation of e.g. dynamic breakdown during high envelope under bias-modulation operation.

Place, publisher, year, edition, pages
2008. p. 222-225
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hig:diva-1947DOI: 10.1109/EMICC.2008.4772269ISI: 000268721400057ISBN: 978-2-87487-007-1 (print)OAI: oai:DiVA.org:hig-1947DiVA, id: diva2:118609
Conference
3rd European Microwave Integrated Circuits Conference (EuMIC), Amsterdam, 27-28 July 2008
Available from: 2008-06-09 Created: 2008-06-09 Last updated: 2018-03-13Bibliographically approved

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Bengtsson, Olof

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CiteExportLink to record
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Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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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