Title :
Planar Multiresolutional Antenna for Automotive Radar
Author :
Metz, Carsten ; Lissel, Ernst ; Jacob, Arne F.
Author_Institution :
Bell Laboratories, 600 Mountain Ave., Murray Hill, NJ 07974, USA. Phone: +1 908 582 2199, Fax.: +1 908 582 6228, e-mail: metzc@lucent.com
Abstract :
High resolution and wide angle surveying capability are combined within a single planar antenna system using a modified Rotman-lens. While narrow beam mode is achieved by feeding the beamports of the lens, broad beams are realized by distributed sidewall feeding with secondary lenses. A Fresnel-lens-like delay network is introduced in the design to reduce the sidelobe level. Effects of fabrication tolerances are assessed. The concept is validated experimentally.
Keywords :
Automotive engineering; Delay lines; Goniometers; Lenses; Mechanical sensors; Optical design; Planar arrays; Radar antennas; Safety; Sensor systems;
Conference_Titel :
Microwave Conference, 2001. 31st European
Conference_Location :
London, England
DOI :
10.1109/EUMA.2001.338931
