AXISYMMETRIC MULTI-BAND MULTI-BEAM MULTI-MIRROR ANTENNA Russian patent published in 2023 - IPC H01Q5/30 H01Q15/23 

FIELD: radio engineering.

SUBSTANCE: invention and serves as antennas for earth stations of satellite communication systems with microwave-EHF repeaters located in geostationary orbit for simultaneous operation with several artificial Earth satellites, each of which operates simultaneously in three frequency ranges. The technical result is to increase the efficiency of the antenna while simultaneously receiving radio waves of three frequency ranges. The result is achieved by proposing an axisymmetric multi-band multi-beam multi-mirror antenna, consisting of three clusters of feeds of different frequency ranges, a main reflector in the form of an axisymmetric cut-out from a paraboloid of rotation, the focal axis of which is the axis of axial symmetry of the antenna, and an auxiliary counter-reflector in the form of an axisymmetric convex towards the reflector cuttings from a hyperboloid of revolution, the focal axis and the farthest focus relative to the reflector coincide, respectively, with the focal axis and focus of the reflector, as well as the axisymmetric secondary reflector and secondary counter-reflector with sections in the form of ellipses installed on the focal axis of the reflector coaxially.

EFFECT: increased efficiency of the antenna while simultaneously receiving radio waves of three frequency ranges.

1 cl, 2 dwg