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A 200 GHz active heterodyne receiver MMIC with low sub-harmonic LO power requirements for imaging frontends

: Kallfass, I.; Tessmann, A.; Massler, H.; Leuther, A.; Schlechtweg, M.; Ambacher, O.

Gallium Arsenide Application Symposium Association -GAAS-; European Microwave Association:
4th European Microwave Integrated Circuits Conference, EuMIC 2009. Proceedings. CD-ROM : Held from 28 to 29 September 2009 in Rome, Italy, as part of the European Microwave Week
London: Horizon House, 2009
ISBN: 978-2-87487-012-5
European Microwave Integrated Circuits Conference (EuMIC) <4, 2009, Rome>
European Microwave Week <2009, Rome>
Conference Paper
Fraunhofer IAF ()
MMIC; millimeter-wave heterodyne receiver; millimeter-wave subharmonic mixer; millimeter wave frequency conversion; G-Band; MHEMT

This paper presents the design and performance of a 200 GHz, sub-harmonically-pumped, heterodyne receiver MMIC realized in 100nm metamorphic HEMT technology. The lownoise amplifier stage sets the receiver noise figure to 7 dB nd, in combination with the resistive down-conversion mixer, allows for an overall conversion gain of 7 dB at 200 GHz RF frequency. The mixer LO port is driven by a frequency doubler and buffer amplifier stage. We use an integrated LO driver amplifier stage with two parallel cascode amplifiers to achieve the operation of the circuit with as low as -13 dBm LO power provided at 100 GHz, thus making the receiver MMIC suitable for multichannel imaging frontends.