| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: Cassegrain antenna consists of large and small parabolic mirrors operating as reflectors and having a single axis of rotation, wherein the small parabolic mirror-reflector is a hyperbolic reflecting surface relative to the large parabolic mirror-reflector. One of the foci of the auxiliary hyperbolic reflector coincides with the focus of the parabolic reflector. The auxiliary hyperbolic reflector is a reflecting antenna array consisting of radiator plates, which include varactors which control the phase of the reflected signal. The antenna also includes a duplexer filter, which is combined with a waveguide and the radiator of the parabolic reflector, a low-noise amplifier, a power amplifier, a control unit and a backup power supply. The auxiliary hyperbolic reflector is mounted on a cover made of radioparent material.EFFECT: high reliability.6 dwg |
