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A 210 GHz, subharmonically-pumped active FET mixer MMIC for radar imaging applications

Ein 210 GHz subharmonischer FET Mischer MMIC für bildgebendes Radar
: Kallfass, I.; Massler, H.; Leuther, A.


Institute of Electrical and Electronics Engineers -IEEE-; European Desalination Society -EDS-:
29th IEEE Compound Semiconductor Integrated Circuit Symposium, CSIC 2007 : 14th-17th Oct 2007, Hilton Portland & Executive Tower Portland , Oregon, USA
Piscataway, NJ: IEEE, 2007
ISBN: 1-4244-1022-3
ISBN: 978-1-4244-1023-1
Compound Semiconductor Integrated Circuit Symposium (CSIC) <29, 2007, Portland/Or.>
Conference Paper
Fraunhofer IAF ()
MMIC; millimeter wave frequency conversion; Millimeterwellenfrequenzkonversion; millimeter wave FET integrated circuit; integrierte Millimeterwellenschaltung; MIMIC

A conversion loss of 8.5 dB is achieved for down-conversion of a 210 GHz RF signal in a sub-harmonically pumped mixer MMIC. The active FET mixer, realized in a 100 nm gate length metamorphic HEMT process, employs a dual-gate topology. The mixer achieves a 3-dB RF bandwidth from 188 to more than 210 GHz and is driven by a 10 dBm subharmonic LO signal. The combination with an integrated source follower stage results in a 2 GHz IF bandwidth. The mixer is dedicated to active imaging systems for concealed weapon detection operating in the atmospheric window around 220 GHz.