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Novel Antenna Concept for Compact Millimeter-Wave Automotive Radar Sensors

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3 Author(s)
Stefan Beer ; Inst. fuer Hochfrequenztech. und Elektron. (IHE), Univ. Karlsruhe (TH), Karlsruhe, Germany ; Grzegorz Adamiuk ; Thomas Zwick

An antenna concept for compact millimeter-wave radar sensors that desire a fan-beam radiation pattern is proposed. It combines an end-fire antenna on a ceramic substrate with a cylindrical parabolic reflector that can be integrated in the sensor's metal housing. The concept allows a direct interconnection from the active components to the antenna in a flip-chip attachment. It is validated with a 77-GHz Yagi-Uda antenna on a 127-mum thick Alumina substrate by measurements with a probe-based measurement setup. The measured return loss, gain, and radiation patterns of the antenna without and with the reflector are given.

Published in:

IEEE Antennas and Wireless Propagation Letters  (Volume:8 )