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A 77 GHz GaAs pHEMT transceive MMIC for automotive sensor applications

Eine monolithisch integrierte 77 GHz GaAs pHEMT Sende- und Empfangsschaltung für automobile Sensor-Anwendungen


IEEE Electron Devices Society; IEEE Microwave Theory and Techniques Society; IEEE Solid-State Circuits Society:
21st GaAs IC Symposium 1999. Technical digest
Piscataway, NJ: IEEE, 1999
ISBN: 0-7803-5585-7
ISBN: 0-7803-5586-5
ISBN: 0-7803-5587-3
pp.207 ff
GaAs IC Symposium <21, 1999, Monterey/Calif.>
Conference Paper
Fraunhofer IAF ()
Abstandswarnradar; automotive radar; cascode; coplanar; dual-gate; Kaskade; koplanar; MMIC; W-band

A very compact coplanar transceive MMIC using space-saving dual-gate pHEMTs has been developed for an FMCW radar system.The chip consists of a two-stage medium power amplifier, a single-ended resistive mixer, a ratrace coupler and a single-stage high-gain amplifier, based on 0.15 mu m GaAs pHEMT technology. An output power of 10 dBm and a conversion loss of 1.5 dB were obtained at 77 GHz. The over-all chip-size is only 1.75 x 1.75 mm2.