Title :
Multi-beam reflector antenna with feeds covered by an EBG structure used as a spatial angular filter
Author :
Israel, Dror ; Shavit, Reuven ; Iluz, Zeev
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva
Abstract :
In this paper, we present a frequency wide band electronic band gap (EBG) design of a multilayer dielectric structure with defects used as a spatial angular filter to generate a virtual aperture in the reflector focal plane. This structure is placed in front of few small feeds located in the focal plane of a parabolic reflector. The efficiency of the antenna, its gain and its directivity, compared to a parabolic reflector antenna fed by conventional horn feeds, was examined
Keywords :
aperture antennas; photonic band gap; reflector antenna feeds; spatial filters; EBG structure; antenna directivity; antenna gain; frequency wide band electronic band gap design; horn feeds; multibeam reflector antenna; multilayer dielectric structure; parabolic reflector antenna; reflector focal plane; spatial angular filter; virtual aperture; Antenna feeds; Filters; Frequency; Horn antennas; Metamaterials; Nonhomogeneous media; Periodic structures; Photonic band gap; Reflector antennas; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710530
