Title :
Dual-reflector antenna with a reflectarray subreflector for wide beam scanning range at 120GHz
Author :
Arrebola, M. ; Encinar, J.A. ; Cahill, R. ; Toso, G.
Author_Institution :
Dept. of Electr. Eng., Univ. de Oviedo, Gijón, Spain
Abstract :
A dual-reflector antenna composed by a small reconfigurable reflectarray subreflector and a large parabolic main reflector is proposed for beam scanning application in the 120 GHz frequency band. The beam scanning is achieved by changing the phase distribution on the reflectarray surface which is supposed to contain reconfigurable cells. The phase distribution for the different beam deflecting states is obtained with a synthesis technique based on the analysis of the antenna in receive mode.
Keywords :
millimetre wave antenna arrays; receiving antennas; reflectarray antennas; beam deflecting states; dual-reflector antenna; frequency 120 GHz; large parabolic main reflector; receive antenna mode; reconfigurable cells; reflectarray surface; small reconfigurable reflectarray subreflector; synthesis technique; wide beam scanning; Apertures; Directive antennas; Feeds; Receiving antennas; Reflector antennas;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2012 International Conference on
Conference_Location :
Cape Town
Print_ISBN :
978-1-4673-0333-0
DOI :
10.1109/ICEAA.2012.6328753
