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Increased efficiency in RF-power SOI-LDMOS transistors
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för elektronik.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
2009 (English)In: Proceedings of EUROSOI: Fifth Workshop of the Thematic Network on Silicon-On-Insulator, Technology, Devices and Circuits, 2009, 117-118 p.Conference paper, Published paper (Refereed)
Abstract [en]

The effect of substrate resistivity on efficiency in high-power operation of high-frequency SOI-LDMOS transistors is for the first time investigated using computational load-pull simulations. Identical SOI-LDMOS transistors have been studied on different substrate resistivities. Their highpower performance has been compared to previous investigations concerning the off-state ROUT to high-efficiency relation. It is shown that albeit high off-state ROUT is a good indication it may not always be sufficient for high efficiency operation. The bias and frequency dependency of the coupling through the substrate makes a more detailed on-state analysis necessary. It is shown that very low resistivity and high resistivity SOI-substrates both result in high efficiency at the studied frequency and bias-point. It is also shown thata normally doped, medium resistivity, substrate results in significantly lower efficiency.

Place, publisher, year, edition, pages
2009. 117-118 p.
Keyword [en]
SOI, Load-Pull, Power Amplifier, Electronics, Elektronik
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-114483OAI: oai:DiVA.org:uu-114483DiVA: diva2:294235
Conference
EUROSOI 2009
Note

117-118

Available from: 2010-02-16 Created: 2010-02-16 Last updated: 2016-04-14

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Other links

http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-3690

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Vestling, LarsBengtsson, OlofEklund, Klas-HåkanOlsson, Jörgen

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