Satellite antenna ring array deployable unit structure

The present invention discloses a satellite antenna ring array deployable unit structure. The ring deployable array is composed of a plurality of same units, each unit consisting of two horizon rod assemblies, two centre rod assemblies and two diagonal rod assemblies which have the same structure; the horizon rod assemblies and the diagonal rod assemblies are hinged to the centre rod assemblies to form a telescopic quadrilateral unit structure; two adjacent units are connected through a common centre rod therebetween; the unit structure may be shrank and deployed by utilizing the proportional relation of the physical dimension; and the deployable ring array only has one degree of freedom so as to easy to be driven and controlled. The deployable ring array provided by the invention has the advantages of good stability in the deploying process, high precision of deploying and good synchronism. The unit structure are characterized by small variety of the parts, low working accuracy requirement and simple and easy assembling, and without changing the structure and the dimension of parts, the amount of the units may be increased or reduced at will according to requirements of different cases and work environments, wherein each part may be reused.