Title :
Improved orbit utilisation by interferometric sidelobe suppression
Author :
Ommeren, M. J S Van ; Herben, M.H.A.J. ; Arnbak, J.
Author_Institution :
Eindhoven University of Technology, Telecommunications Division, Department of Electrical Engineering, Eindhoven, Netherlands
Abstract :
Auxiliary defocused feeds with weak excitation can be used to cancel or reduce specific near-angle sidelobes of double reflector antennas. Existing earth terminals may be upgraded in this way to provide improved isolation between interfering satellites when the tight station-keeping tolerances agreed at WARC-79 come into force.
Keywords :
antenna feeders; reflector antennas; satellite ground stations; satellite relay systems; Earth terminals; antenna feeders; double reflector antennas; interferometric sidelobe suppression; satellite links;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800667
