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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 11/23/2014)