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Low-Profile 77-GHz Lens Antenna With Array Feeder

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4 Author(s)
Hallbjorner, P. ; SP Tech. Res. Inst. of Sweden, Boras, Sweden ; Zhongxia He ; Bruce, S. ; Shi Cheng

A 77-GHz lens antenna for automotive radar applications is presented. It consists of a feeder in the form of a 2×2 patch array etched from a single layer on a 100-μm-thick substrate and a commercially available dielectric lens. Compared to previously published lens antennas, the presented design has the advantages of excellent electrical performance and a low profile in combination with a thin lens. Measurements of port impedance match and radiation patterns are presented. Beam tilt by lateral offset of the lens is demonstrated experimentally.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )