METHOD OF REFLECTING MIRROR SURFACES FORMATION OF SPACE RADIO TELESCOPE ANTENNA Russian patent published in 2019 - IPC G01S13/66 

FIELD: antenna equipment.

SUBSTANCE: invention relates to antenna systems of space radio telescopes, specifically to methods of forming their reflecting surfaces with tuning to length of radio waves received by antenna. Result is achieved due to adjustment of antenna surfaces on operating frequency range, absence of weight and wind deformations of antenna structure elements and elimination of Earth's astronomical climate effect by installation of reflecting antenna surfaces on Earth satellites. At that, positions of shields forming the reflecting surface of the main antenna mirror are measured, the positions of shields of the main mirror are built in the computer for each shield so that the focal distance and position of the base of each paraboloid is minimally different from the neighboring one and wherein the differences between their focal distances are a multiple of the wavelength of the radio-frequency received by the antenna. Deviations of each shield of the main mirror from the corresponding approximating paraboloid are calculated, according to the calculated deviations, each shield is moved towards minimization of these deviations, position of each shield of the convergent reflector is measured, and along the direction of the reflected beams from the shields of the main mirror towards the side of the reflector and the path of the reflected beams from the surfaces of the shields of the reflector, the mismatch of the extreme beams is calculated, each shield is moved towards reduction of mismatches. Radiation receiver is installed on the controlled element, the controlled elements of the shields of the reflecting surfaces of the main mirror and the convergent reflector, as well as the radiation receiver are made in the form of, for example, hexapods installed on satellites of the Earth, which are brought out to the corresponding orbit. Satellites with fixed elements of reflecting shields are placed in orbit so that surface, which is passed through shields of the reflector, is close to ellipsoid and all beams reflected from shields of reflector through secondary focus fell on sensitive surface of radiation receiver. Center of the radiation receiver coincides with the secondary focus of the antenna as accurately as possible, and after the transfer of the reflector shields, the radiation receiver is moved until its center coincides with the position of the secondary focus of the antenna.

EFFECT: achieved technical result is increase in the antenna utilization coefficient.

1 cl, 7 dwg