Title :
The diverging-focusing properties of a tapered leaky wave antennas
Author_Institution :
Dipt. di Elettrotec. ed Elettron., Politec. di Bari, Bari
Abstract :
The broadband leaky-wave antenna based on tapered design and its diverging-focusing properties have been proposed end investigated in this paper. The tapered leaky-wave antenna (LWA) was designed, using a physical grounding structure along the length of the antenna to connect the conductor strip and the ground plane. The use of a physical grounding structure, allows to use only half of the structure, the adoption of a simple feeding, and the reduction of sidelobes. These performance can be improved, bending the tapered LWA. Moreover using the ray-optical model and the focusing property of LWA we can predict the main beam angle of tapered LWA.
Keywords :
antenna feeds; broadband antennas; leaky wave antennas; microstrip antennas; antenna feed; broadband antenna; conductor strip; diverging-focusing properties; focusing property; ground plane; microstrip LWA; physical grounding structure; ray-optical model; sidelobe reduction; tapered leaky wave antenna design; Antennas and propagation; Broadband antennas; Cutoff frequency; Geometrical optics; Grounding; Leaky wave antennas; Microstrip; Prototypes; Receiving antennas; Transmitting antennas; Broadband antennas; Focusing property; Leaky wave antennas;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
