S H F MULTIBEAM ANTENNA Russian patent published in 1997 - IPC

FIELD: antenna equipment. SUBSTANCE: SHF multibeam antenna has feeds which number is equal to number of beam and axially symmetric dielectric lens having constant refractive index and two refracting surfaces. Lens transforms spherical front of wave from feed to spherical front with other angular size substantially lesser and meets condition of Abbe sines. Coordinates of envelopes of both surfaces of lens are tied up by four relations. Blocks of modified polyethylene are used in the capacity of material of lens. Zoning of lens is possible. EFFECT: facilitated manufacture, enhanced functional reliability. 3 cl, 5 dwg