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Compact integrated coplanar T/R-modules for automotive applications

Kompakte integrierte Sende- und Empfangschips in Koplanartechnik für Kfz-Abstandswarnradarsensoren


Koepf, G.A. ; Institute of Electrical and Electronics Engineers -IEEE-:
IEEE MTT-S International Microwave Symposium Digest 1997. Vol.1
Piscataway, NJ: IEEE Publ. Order Dept., 1997
ISBN: 0-7803-3814-6
ISBN: 0-7803-3815-4
S.243-246 : Ill.
International Microwave Symposium <1997, Denver/Colo.>
Fraunhofer IAF ()
Abstandswarnradar; automotive applications; coplanar transmitter MMIC; HEMT-Großsignalmodell; koplanarer Sendechip; large-signal HEMT-model

Integrated transmit and receive MMICs for automotive applications have been realized in coplanar waveguide technology, using a 0.15 mu m PHEMT process. The transmitter chip delivers an output power of 10 dBm at the antenna and the LO-ports. The receiver has an overall conversion gain of 10 dB for an LO-power of -10 dBm. Both chips only require an area of 3*2 mm2 For an improved higher power version of the transmitter, a new nonlinear HEMT-model has been used for the design of a power amplifier, resulting in excellent agreement between predicted and measured output performance at 76 GHz.