| 摘要 |
antenna engineering; dismountable antennas assembled directly on ground. SUBSTANCE: antenna has mirror system with counter-reflector hanger and feed column with feed and antenna-waveguide channel mounted on dismountable mirror. Central power section of mirror is mounted for rotating about elevation axis on elevation positioning device by means of transnational movement drives. Azimuth positioning device set on adjustable ball supports is mounted on bedplate. Column mounted on support rotating about azimuthal axis by means of two articulated joints parallel to elevation axis and locking flange has shell with diametrically arranged trunnions which is installed in its top part rotating about column axis aligned with azimuthal axis. Trunnions carry four supporting posts of which two ones are placed in adjustable brackets of supporting slabs mounted on bedplate; two other posts are secured in fixed-base brackets of azimuth positioning device. Fixed on loose end of column is elevation positioning device platform. EFFECT: facilitated assembly and disassembly procedures dispensing with special high-capacity loadcarrying facilities; improved reliability of azimuth-positioning drive. 6 dwg |
