Design of Null-Filling Antenna for Automotive Radar Using the Genetic Algorithm

A null-filling antenna for automotive radar is investigated using the genetic algorithm. The single column of the proposed antenna consists of four gap-coupled antenna elements and 14 direct-coupled antenna elements. The radiating elements are inclined 45 ° from the feedline. The proposed antenna ha...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2014, Vol.13, p.738-741
Main Authors: Shin, Dong-Hun, Kim, Ki-Beom, Kim, Jong-Guk, Park, Seong-Ook
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna measurements
Antenna radiation patterns
Antennas
Automotive components
Automotive engineering
Automotive radar
Blinds
Elevation
Gain
Genetic algorithms
null filling
Radar
Radar antennas
Sidelobes
Taylor array pattern synthesis
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Summary:A null-filling antenna for automotive radar is investigated using the genetic algorithm. The single column of the proposed antenna consists of four gap-coupled antenna elements and 14 direct-coupled antenna elements. The radiating elements are inclined 45 ° from the feedline. The proposed antenna has 19.67 dBi gain with a -20.19-dB sidelobe level in the elevation and a -25.08-dB sidelobe level in the azimuth direction. The blind zone is reduced from 19.03 to 2.38 m using the proposed antenna for sensing the obstacle. The proposed antenna is a good solution for both short- and long-range automotive radar.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2014.2316300