Patent ID: 8780000

Claim:
A multi-beam telecommunication antenna intended to equip a high-throughput telecommunication payload to cover, in transmission and/or reception, a geographic area from a geostationary orbit, able to be mechanically mounted on one or two satellite platforms and to be electromagnetically coupled to a repeater, comprising: at least one radioelectric reflector, and an associated feed block, formed by a plurality of elementary radioelectric feeds arranged in a plane, the plurality of elementary radioelectric feeds being configured to illuminate the reflector by electromagnetic radiation in a frequency band and/or to be illuminated by electromagnetic radiation in a frequency band reflected by the reflector according to a primary multi-beam set of adjacent primary beams distributed in at least one spatially connected set of adjacent primary beams, any two adjacent primary beams being separated by a first angular separation θ S1 , the reflector being configured to reflect part of the electromagnetic energy emitted by the feed block and/or to intercept part of the electromagnetic energy emitted from the geographical area, according to a secondary multi-beam set of secondary adjacent reflected beams in at least one spatially connected set of adjacent secondary beams, any two adjacent secondary beams being separated by a second angular separation θ S2 , wherein the reflector is unique, and the feed block is dimensioned and arranged so that each feed can generate and/or receive a different unique beam and so that the first angular separation θ S1 is substantially equal to the second angular separation θ S2 , and the spillover energy losses associated with each feed are between 3 and 10 dB.