Design and characterization of MMIC active cold loads

This paper reports the first broadband monolithic microwave integrated circuit (MMIC) active cold loads. The fabricated loads demonstrate state-of-the-art temperatures of 90 K over the 2-10 GHz range and 125 K over the 10-26 GHz range. The MMICs were fabricated on 100 micron GaAs substrates using 0....

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Published in2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017) Vol. 1; pp. 29 - 32 vol.1
Main Authors Buhles, P.M., Lardizabal, S.M.
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 2000
Subjects
Calibration
Circuit topology
Costs
Feedback
Gallium arsenide
HEMTs
mHEMTs
Microwave radiometry
MMICs
Temperature distribution
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Summary:This paper reports the first broadband monolithic microwave integrated circuit (MMIC) active cold loads. The fabricated loads demonstrate state-of-the-art temperatures of 90 K over the 2-10 GHz range and 125 K over the 10-26 GHz range. The MMICs were fabricated on 100 micron GaAs substrates using 0.15 micron GaAs Metamorphic HEMT technology. In addition, contemporary topologies for cold load design have been evaluated.
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ISBN:078035687X
9780780356870
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2000.860878