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Authors:Sten Gunnarsson: Chalmers University of Technology, Department of Microelectronic, Sweden
Klas Yhland: SP Swedish National Testing and Research Institute, Borås, Sweden
Herbert Zirath: Chalmers University of Technology, Department of Microelectronic, Sweden \ Ericsson AB, MHSERC, Sweden
Publication title:pHEMT and mHEMT Ultra Wideband Millimeterwave Balanced Resistive Mixers
Conference:GigaHertz 2003. Proceedings from the Seventh Symposium
Publication type: Poster
Issue:008
Article No.:067
Abstract:Two ultra wideband millimeterwave single balanced resistive mixers utilizing a Marchand balun for the LO.hybrid are simulated, fabricated and characterized for 30-60 GHz in both up and down conversion. Two different versions of the mixer were manufactured in a commercial pHEMT-MMIC and a mHEMT-MMIC process respectively. A measured down conversion loss of approximately 6 to 12 dB over the whole band is obtained for both versions of the mixer with external IF power combining. In spite of the balanced design, the required LO power is quite low, 2 dBm is sufficient for low conversion loss. The LO-RF isolation is excellent, often more than 30 dB for both type of mixers. Low noise figure and high IIP3 figures are obtained. It is also shown that by applying selective drain bias, up to 5 dB improvement of IIP3 can be obtained for the mHEMT mixer with small LO powers.
Language:English
Year:2003
No. of pages:4
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):1650-3740
File:http://www.ep.liu.se/ecp/008/posters/041/ecp00841p.pdf
Available:2003-11-06
Publisher:Linköping University Electronic Press, Linköpings universitet

REFERENCE TO THIS PAGE
Sten Gunnarsson, Klas Yhland, Herbert Zirath (2003). pHEMT and mHEMT Ultra Wideband Millimeterwave Balanced Resistive Mixers, GigaHertz 2003. Proceedings from the Seventh Symposium http://www.ep.liu.se/ecp_article/index.en.aspx?issue=008;article=067 (accessed 8/22/2014)