MULTIBEAM BAND DISH ANTENNA Russian patent published in 2017 - IPC H01Q19/19 

FIELD: radio engineering, communication.

SUBSTANCE: multi-beam band dual-reflector antenna consists of a irradiators system located on arc of a circle, a primary reflector mirror which has a form of parabola in the plane orthogonal to the plane of circular arc, and an auxiliary subdish, in form of coaxial to parabola ellipse, concaved towards the reflector; the cross sections of all above in the plane of the irradiators arc are circumferences, concentric with the irradiators arc and having a larger and smaller radius, respectively, compared with it. The irradiators circumferences arc passes through the focus of ellipse, which is close to the reflector. At the same time, additional irradiators are placed on the irradiators arc passing through the focus of the ellipse remote from the reflector.

EFFECT: increase the efficiency of antenna while simultaneously receiving two frequency bands.

2 dwg