A novel design of large full-steerable reflector antenna
Abstract
Aiming at the problem of self-weight and cost of 110 m large full-steerable reflector antenna, a new design scheme is proposed. Compared with the conventional scheme, the self-weight, drive power and cost can be reduced by 1/2, 2/3 and 1 orders of magnitude. Firstly, an ultra-light prestressed cable-truss structure is proposed to replace the traditional rigid heavy rigid truss structure. Then, a novel parallel servo mechanism is proposed to replace the conventional <italic>Az</italic>-<italic>El</italic> scanning mechanism. Furthermore, an optimization model is established based on the modularized design. Finally, the new scheme is applied to the numerical examples and a practical antenna with a diameter of 26 m, and the results verify the feasible and effective of the scheme and the method. In addition, the design scheme is extensible and can be applied to the design of large structures and devices such as antennas, weapon mounts and large solar panels in other land, sea, air and space fields.
