Title :
Focalization of new 40 m radiotelescope of Centro Astronomico de Yebes
Author :
Garcia, E. ; de Haro, L. ; Tercero, F. ; Lopez Fernandez, J.A. ; Galocha, B. ; Besada, J.L. ; Barcia, A.
Author_Institution :
ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain
Abstract :
The paper presents the solution for the focalization of the new 40 m radiotelescope of the Centro Astronomico de Yebes (CAY) in Guadalajara, Spain. Quasi-optics theory is used for the propagation analysis of the beams through the different optical elements. The goal of the paper is to design the optical system that can focalize several bands reducing to the minimum number of possible optical elements, and sharing the maximum number of them. Hyperbolic lens and ellipsoidal mirror parameters, focal distances, and the feeder dimensions necessary for the focalization in each band are calculated.
Keywords :
focusing; geometrical optics; lens antennas; millimetre wave antennas; radiotelescopes; reflector antenna feeds; 27 to 120 GHz; 40 m; Cassegrain antenna; Centro Astronomico de Yebes; K-band; S-band; Spain; X-band; ellipsoidal mirror parameters; feeder dimensions; focal distances; hyperbolic lenses; millimeter band; propagation analysis; quasi-optics theory; radiotelescope; Feeds; Geometrical optics; Large Hadron Collider; Lenses; Mirrors; Optical propagation; Optical receivers; Polarization; Proposals; Telecommunications;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1217415
