MULTIBEAM LENS ANTENNA Russian patent published in 1998 - IPC

FIELD: antenna engineering. SUBSTANCE: multibeam lens antenna has central-symmetry spherical lens and feeds, all carried by mount-and-rotator system. Lens is provided with supporting rod; mount-and-rotator system incorporates shaft whose center line coincides with vertical axis of antenna that crosses lens center. One end of shaft mounts supporting bush accommodating supporting rod installed therein for locking in position; other end of shaft is coupled with bearing disk. In addition, mount-and-rotator system has brackets their quantity corresponding to number of feeds; they are mounted on bearing disk for displacement over disk perimeter followed by their locking in desired position and joined through holders with shaft; it also has annular sector meridian guides provided with supporting and adjusting units and secured on brackets by means of movable fastenings wherein mentioned guides are installed for displacement followed by their locking in desired position. Feeds are mounted in supporting and adjusting units for displacement along their axes and turning about them. Antenna operates within solid angle of about 3 steradian. EFFECT: enlarged working sector of circle for shaping beams in azimuth and elevation; high stability of parameters with highest possible gain. 7 dwg