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

Volume

13

fYear

2014

fDate

2014

Firstpage

738

Lastpage

741

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;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2316300

Filename

6785956