Title :
Low-Profile 77-GHz Lens Antenna With Array Feeder
Author :
Hallbjörner, Paul ; He, Zhongxia ; Bruce, Staffan ; Cheng, Shi
Author_Institution :
SP Tech. Res. Inst. of Sweden, Boras, Sweden
fDate :
7/4/1905 12:00:00 AM
Abstract :
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.
Keywords :
antenna feeds; antenna radiation patterns; impedance matching; lens antennas; microstrip antenna arrays; millimetre wave antenna arrays; radar antennas; road vehicle radar; antenna radiation patterns; automotive radar; beam tilt; dielectric lens; frequency 77 GHz; low-profile lens antenna; patch array feeder; port impedance matching; size 100 mum; Antenna feeds; Antenna measurements; Arrays; Gain; Lenses; Radar antennas; Antenna feeds; lens antennas;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2188265
