Title :
A Reconfigurable Satellite Antenna System for Regional and Domestic Communications in Africa
Author :
Rispoli, F. ; Badessi, S. ; Costabile, V. ; Jorgensen, R. ; Montero, J.M. ; Crone, G.A.E.
Abstract :
An antenna system is proposed for a C-band African communication satellite (AFSAT). The design consists of a pair of TX and RX antennas (4/6 GHz) based on dep1oyab1e dual gridded reflectors having diameters of 2.3 m and 1.4 m respectively with a total of 100 horns. The design of the antennas is compatible with the Eurostar bus and Ariane IV Spelda 10 launcher. Eight shaped beams are formed (2 UP-link, 6 DN-link) by using orthogonal linear polarizations. Reconfigurability is allowed for most of the 24 channels (40 MHz each). A 12 horn feed array system, based on light weight stepped horns and dual mode "TEM line" Beam Forming Network, has been developed and tested.
Keywords :
Africa; Artificial satellites; Continents; Feeds; Global communication; Horn antennas; Optical polarization; Payloads; Reflector antennas; Satellite antennas;
Conference_Titel :
Microwave Conference, 1987. 17th European
Conference_Location :
Rome, Italy
DOI :
10.1109/EUMA.1987.333783
