MULTIBEAM MULTIBAND MULTIREFLECTOR ANTENNA Russian patent published in 2022 - IPC H01Q5/30 H01Q25/00 H01Q19/18 

FIELD: antenna technology.

SUBSTANCE: invention relates to antennas of the Earth stations of satellite communication systems. The result is achieved by the fact that the antenna, consisting of systems of irradiators located on three concentric arcs of circles lying in the transverse plane, the main reflector having the shape of a parabola in the longitudinal plane, orthogonal plane of arcs, an auxiliary subdish and an additional reflector and subdish coaxial with them, symmetrical with respect to the focal axis of the parabola, the cross-sections of which in the transverse plane are circles concentric to the arcs of the irradiators, differs in that the cross-section of the subdish in the longitudinal plane has the form of a parabola, concave away from the reflector, its focal axis and focus are aligned with the focal axis and the focus of the reflector, an additional reflector with a cross-section similar to the section of the reflector, and an additional subdish with a cross-section in the form of an ellipse concave towards the counter-reflector, are installed so that their focal axes coincide with the focal axis of the reflector, and the longitudinal size of the additional reflector coincides with the same size of the subdish, and the focus is combined with the one closest to the additional subdish to the focus of the ellipse.

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

1 cl, 2 dwg