Conference Proceeding

Compact monolithic coplanar 94 GHz front ends

Fraunhofer Inst. for Appl. Solid State Phys., Freiburg
IEEE MTT-S International Microwave Symposium digest. IEEE MTT-S International Microwave Symposium 07/1997; DOI:10.1109/MWSYM.1997.596561 ISBN: 0-7803-3814-6 pp.1281 - 1284 vol.3 In proceeding of: Microwave Symposium Digest, 1997., IEEE MTT-S International, Volume: 3
Source: IEEE Xplore

ABSTRACT Fully integrated W-band 94 GHz heterodyne receivers in coplanar
0.15 μm AlGaAs/InGaAs/GaAs PM-HEMT technology are described. The
MMICs consist of a multistage low noise RF amplifier, a mixer, and an LO
buffer amplifier. Balanced diode and single ended resistive HEMT mixers
were investigated. A conversion gain of 13 dB and a DSB noise figure of
6.5 dB were obtained with a very compact 1×4 mm2 front
end MMIC, employing cascode amplifiers and balanced rat race diode
mixer. The chip size is substantially less than that of any receiver
chip published to date

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Keywords

cascode amplifiers
 
chip size
 
coplanar
 
DSB noise figure
 
multistage low noise RF amplifier
 
resistive HEMT mixers
 
W-band 94 GHz heterodyne receivers
 
μm AlGaAs/InGaAs/GaAs PM-HEMT technology