Title :
Design of antennas for the Europe an data relay satellite
Author :
Capone, R. ; Meschini, A. ; Rispoli, F.
Author_Institution :
Selenia Spazio SpA, Rome, Italy
Abstract :
The study of a data relay satellite which will be used for linking low-earth-orbiting (LEO) satellites with fixed earth terminals is presented. The authors describe the antenna subsystems presently based on large scannable reflector antennas for the interorbit links at S- (2 GHz) and Ka-bands (23/26 GHz) and on a fixed reconfigurable antenna for the feeder link with the earth stations located in Europe. Feasibility studies have been conducted in order to accommodate the antenna on different European spacecraft within the Ariane IV launcher constraints. A novel scanning technique is described which makes it possible to steer the reflector for up to 40 HPBWs with a loss of about 1 dB.<>
Keywords :
data communication systems; microwave antennas; reflector antennas; satellite antennas; 2 GHz; 23 GHz; 26 GHz; Ariane IV launcher; Europe; Europe an data relay satellite; European spacecraft; Ka-band; S-band; SHF; antenna subsystems; antennas design; earth stations; earth terminals; feeder link; interorbit links; low earth orbiting satellites; reconfigurable antenna; scannable reflector antennas; Antenna feeds; Apertures; Europe; Frequency; Mars; Optical design; Payloads; Relays; Satellite antennas; Satellite ground stations;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.135035
