NON-INCLINED MULTIPLE MULTI-BEAM BAND DOUBLE-REFLECTOR ANTENNA Russian patent published in 2018 - IPC H01Q5/00 

FIELD: radio equipment; electronics.

SUBSTANCE: invention relates to radio engineering, to the field of antenna technology in the SHF-EHF band and is intended for use in radio communication systems, radio bearing, radio observation and radio monitoring. Invention is intended for use as part of the radio engineering devices for television, radio broadcasting and radio communication through the artificial earth satellites (AES), which are located at the edge of the visible sector of the geostationary earth orbit (GEO) of centimeter and millimeter wave bands operating simultaneously and in several frequency bands each. Non-inclined multibeam dual-mirror antenna consisting of the system of irradiators, which are located on the circular arc, the basic mirror-reflector having the form of a parabola in the plane, orthogonal circular arc of the position of the irradiators and inclined with respect to the horizon, the auxiliary mirror-counter-reflector in the form of an ellipse that is coaxial to the parabola of an ellipse that is concave towards the reflector, in the same inclined plane, the sections of which in the plane of the arc of the irradiators are circles, which are concentric with the arc of the irradiators and have in comparison with it a larger and smaller radii, respectively, the arc of the circumferences of the irradiators passes through the focus of the ellipse, which is close to the reflector. At the same time, the additional irradiator is placed on the arc of irradiators passing through the focus of the ellipse, which is far from the reflector.

EFFECT: technical result consists in increasing the efficiency of the antenna while simultaneously receiving two frequency bands.

1 cl, 5 dwg