MULTIBEAM TRANSMITTING AND RECEIVING ANTENNA WITH MULTIPLE FEEDERS PER BEAM, SYSTEM OF MULTIPLE ANTENNAS, AND SATELLITE TELECOMMUNICATION SYSTEM INCLUDING SUCH ANTENNA

摘要

PROBLEM TO BE SOLVED: To provide a multibeam transmitting and receiving antenna with multiple feeders per beam, a system of multiple antennas, and a satellite telecommunication system including such an antenna.SOLUTION: A transmitting and receiving antenna includes an array of feeders 10a to 10d clustered by groups of four adjacent feeders along two directions in a plane, each feeder including two transmitting ports and two receiving ports with orthogonal polarizations. For each of groups G1 to G3 of the four adjacent feeders 10a to 10d, each of first (T1a to T1d) or second (T2a to T2d) transmitting ports, and each of first (R1a to R1d) or second (R2a to R2d) receiving ports, corresponding to a same pair of frequencies and polarization values are connected two-by-two in the direction X then two-by-two in the direction Y, the four interconnected transmitting ports forming a transmitting beam and the four interconnected receiving ports forming a receiving beam.