Substrate integrated waveguide slot array antenna with enhanced scanning range for automotive application

Author

Chiu, Leung ; Hong, Wei ; Kuai, Zhenqi

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

fYear

2009

fDate

7-10 Dec. 2009

Firstpage

1

Lastpage

4

Abstract

A modified substrate integrated waveguide (SIW) slot array antenna has been proposed for the low cost 24 GHz Doppler radar system. All radiating slots are connected in series using a short circuit ended SIW; therefore, its radiation beam can be steered with frequency. The modified antenna with meandering structure is proposed to enhance the scanning range. The physical slot spacing is kept at about half free space wavelength, while the electrical spacing is about 540Â° at the center frequency of 24 GHz. A broadside radiation is achieved at 24 GHz frequency and a Â±30Â° continuous scanning range is experimentally confirmed with the frequency band from 23 GHz to 25 GHz.

Keywords

Doppler radar; antenna radiation patterns; slot antenna arrays; substrate integrated waveguides; Doppler radar; broadside radiation; electrical spacing; meandering structure; scanning range; slot array antenna; substrate integrated waveguide; Antenna arrays; Automotive applications; Automotive engineering; Beam steering; Doppler radar; Frequency; Phased arrays; Radar antennas; Radar signal processing; Slot antennas; Antenna; Doppler radar; substrate integrated waveguide (SIW);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. APMC 2009. Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-2801-4

Electronic_ISBN

978-1-4244-2802-1

Type

conf

DOI

10.1109/APMC.2009.5385488

Filename

5385488