Title :
Design of Null-Filling Antenna for Automotive Radar Using the Genetic Algorithm
Author :
Dong-Hun Shin ; Ki-Beom Kim ; Jong-Guk Kim ; Seong-Ook Park
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
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.
Keywords :
genetic algorithms; radar antennas; road vehicle radar; automotive radar; azimuth direction; blind zone; direct-coupled antenna elements; gap-coupled antenna elements; genetic algorithm; null-filling antenna; size 19.03 m; size 2.38 m; Antenna arrays; Antenna measurements; Antenna radiation patterns; Automotive engineering; Radar; Radar antennas; Automotive radar; Taylor array pattern synthesis; null filling;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2316300
