Title :
Contoured-beam dual-reflectarray antenna for DBS application
Author :
Tienda, C. ; Encinar, J.A. ; Arrebola, M.
Author_Institution :
Dept. of Electromagn. & Circuit Theor., Univ. Politec. de Madrid, Madrid, Spain
Abstract :
In this paper, a dual-reflectarray antenna is proposed to generate a contoured beam for a DBS European coverage. The antenna optics is based on a compact range dual-reflector antenna, which produces low crosspolar radiation. The phase distribution of the subreflectarray is defined to simulate an equivalent hyperbolic subreflector with negative eccentricity. The phase distribution on the main reflectarray surface is synthesized to shape the beam providing the required coverage.
Keywords :
antenna arrays; antenna radiation patterns; direct broadcasting by satellite; reflector antennas; satellite antennas; DBS European coverage; DBS application; antenna optics; compact range dual-reflector antenna; contoured-beam dual-reflectarray antenna; crosspolar radiation; hyperbolic subreflector; negative eccentricity; phase distribution; reflectarray surface; subreflectarray; Antenna radiation patterns; Feeds; Geometry; Reflector antennas; Satellite broadcasting; Dual Reflector; Pattern Synthesis; Reflectarray;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996652
