NDLI: A dual reflector antenna with adjustable subreflector for hybrid mechanical-electronic scanning

Content Provider	IEEE Xplore Digital Library
Author	Garcia Pino, Antonio Martinez Lorenzo, Jose A. Rubinos, Oscar Arias, Marcos Compostizo, Carlos Scolamiero, Lucio
Copyright Year	2006
Description	Author affiliation: ESA/ESTEC. Keplerlaan 1. PO Box 299, 2200 AG Noordwijk ZH (THE NETHERLANDS) (Scolamiero, Lucio) \|\| Universidad de Oviedo, Edificio Polivalente - Campus de Viesques, 33203 Gijén (SPAIN) (Martinez Lorenzo, Jose A.) \|\| SENER, Ingeniería y Sistemas. Av Zugazarte 56. 48930 Las Arenas-Vizcaya (SPAIN) (Compostizo, Carlos) \|\| Universidad de Vigo, ETSI Telecomunicacién, Campus Universitario, 36310 Vigo (SPAIN) (Garcia Pino, Antonio; Rubinos, Oscar; Arias, Marcos)
Abstract	This paper presents some results of the ESA project ¿Hybrid Mechanical-Electronic Pointing System¿, which considers future scenarios using the Q/V band on satellite communications. The main characteristic of the antenna is to provide two separate controls of the main beam: electronic control and mechanical control. The mechanical control is produced by an adjustable subreflector, working cooperatively with the electronic beam control provided by a source array as primary feed of the antenna system. A Gregorian Confocal configuration has been adopted. The subreflector design has been developed under Geometrical Optics approximation and Simulated Annealing optimization techniques to provide best-fit-paraboloidal representations of the surface that can be implemented with a limited number of mechanical actuators.
Starting Page	1
Ending Page	6
File Size	488976
Page Count	6
File Format	PDF
ISBN	9789290929376
DOI	10.1109/EUCAP.2006.4584662
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-06
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	ESA
Subject Keyword	Solid modeling Optical design Communication system control Simulated annealing Reflector antennas Control systems Antenna feeds Geometrical optics Satellite communication Antenna arrays
Content Type	Text
Resource Type	Article

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