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A highly linear FMCW radar chipset in H-band with 50 GHz bandwidth

: Grötsch, Christopher M.; Schoch, Benjamin; Wagner, Sandrine; Kallfass, Ingmar


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE MTT-S International Microwave Symposium, IMS 2019 : 2-7 June 2019, Boston, Massachusetts
Piscataway, NJ: IEEE, 2019
ISBN: 978-1-7281-1309-8
ISBN: 978-1-7281-1310-4
International Microwave Symposium (IMS) <2019, Boston/Mass.>
Fraunhofer IAF ()
MMIC; receiver; transmitter; millimeter-wave radar; ultra wideband radar

In this paper we present a transmit and receive MMIC for FMCW radar. The transmitter consisting of a frequency multiplier-by-three and a power amplifier featuring a high output power of 7dBm with a 60 GHz 3-dB RF-bandwidth. The receiver is designed to be highly linear over a LO and RF bandwidth from 235 to 285 GHz. It employs a frequency tripler and a power amplifier as driver stage for a passive I/Q downconverter which enables an image reject architecture. To ensure linear operation and improve the overall receiver noise an input amplifier stage with an input referred 1-dB compression point exceeding -3dBm is also integrated. The chipset is realized in a 35nm metamorphic high electron mobility transistor technology.