Reconfigurable antenna systems for European multimission satellites

Author

Rispoli, F. ; Capone, R. ; Jorgensen, R. ; Cameron, R. ; Crone, G.A.E.

Author_Institution

Selenia Spazio, Italy

fYear

1988

fDate

6-10 June 1988

Firstpage

514

Abstract

The most promising antenna system for DBS has been identified in a reconfigurable dual antenna configuration (circular polarization) with aperture diameters of 2.5 m to be mounted on the spacecraft sidewalls. Beam reconfigurability foresees the combination of coverages two, three, four and five in two supercoverages (2+3 and 4+5, respectively). Channel routing is accomplished by using variable power dividers, while feed sharing on the same polarization among overlapping beams is avoided by a suitable coverage assignment among the two antennas. A preliminary mass estimate indicates that the reconfigurable dual antenna weight is in the order of 110 kg, against the 80 kg of the single antenna. The computed RF powers for each channel are given.<>

Keywords

direct broadcasting by satellite; satellite antennas; DBS; European multimission satellites; RF powers; channel routing; circular polarization; coverage assignment; reconfigurable dual antenna; spacecraft sidewalls; variable power dividers; Aperture antennas; Artificial satellites; Europe; Feeds; Polarization; Radio frequency; Satellite antennas; Satellite broadcasting; TV; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1988. AP-S. Digest

Conference_Location

Syracuse, NY, USA

Type

conf

DOI

10.1109/APS.1988.94121

Filename

94121