ANTENNA SYSTEM Russian patent published in 2010 - IPC H01Q21/24 

FIELD: radio engineering.

SUBSTANCE: antenna system includes the main parabolic reflector (MPR) - transreflector and polariser-rotaflector located on its surface, as well as feed horns (FH), receiving and transmission channels; at that, FH have mutually orthogonal polarisation and are located outside the field of beams reflected by MPR and are arranged in foci of small hyperbolic reflector (SHR), where FH of receiving channel is in SHR focus, on its concave side, the focus of which coincides with MPR, and FH of transmission channel is in the second SHR focus, on its convex side; at that, SHR surface is polarisation-selective, and FH of receiving channel is multi-mode with linear polarisation, orthogonal polarisation of FH of receiving channel; to FH of receiving channel there connected is wave propagation system forming the outputs of support common total diagram Σ and two difference azimuth Δφ and elevation Δθ diagrams, as well as there are two fine adjustment screws providing during adjustment an independent turn about longitudinal axes of SHR and FH of receiving channel respectively.

EFFECT: improving accuracy of location finding of targets in accordance with modern requirements.

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