Title :
Composite right/left-handed leaky wave antenna for millimeter-wave automotive applications
Author :
Sato, Kazuo ; Matsuzawa, Shin-ichiro ; Inoue, Yasuyuki
Author_Institution :
Toyota Central R&D Labs., Inc., Aichi
Abstract :
We have proposed a novel structure of frequency-independent steerable composite right/left-handed (CRLH) leaky wave (LW) antenna in the millimeter- wave band. It has advantages of wide beam scanning. The proposed antenna has features that a movable dielectric slab is placed above the CRLH LW antenna, and the radiation angle can be steered by changing the distance between the slab and the antenna using compact actuators. We have fabricated the prototype of CRLH LW antenna with the slots, and backward-to-forward beam scanning characteristics at 76 GHz have been demonstrated in the measurement. The scanning angle as wide as from 73 to 114 deg has been achieved experimentally. The aperture efficiency is 25.3%.
Keywords :
automotive electronics; leaky wave antennas; metamaterials; millimetre wave antennas; backward-to-forward beam scanning; dielectric slab; efficiency 25.3 percent; frequency 76 GHz; millimeter-wave automotive applications; steerable composite right/left-handed leaky wave antenna; wide beam scanning; Actuators; Antenna measurements; Apertures; Automotive applications; Dielectrics; Frequency; Leaky wave antennas; Prototypes; Slabs; Slot antennas;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584506
