FRAME OF STRUCTURE OF ANTENNA REFLECTOR FROM POLYMER COMPOSITE MATERIAL Russian patent published in 2015 - IPC H01Q15/16 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to space engineering, namely to creation of precision antenna reflectors with high-accuracy reflecting surfaces of complex geometry, which are curved in two dimensions, for operation under conditions of a space orbital flight. An antenna reflector structure frame includes a thin cover of complex geometrical shape, which is reinforced on its rear side with stiffeners in the form of a net structure that consists of three sets of parallel stiffeners located relative to each other at angles of 60 degrees and bonded to the rear side of the reflector cover. Each stiffener has slots providing assembly of stiffeners into a common net for further bonding to each other and together with the cover into one unit; with that, longitudinal planes of all stiffeners are oriented parallel to the focal axis of the reflector. With that, the net is made in the form of a hybrid triangular and hexagonal structure consisting of three-edged and six-edges cells and made from an isogrid triangular structure at equidistant displacement of one of the three sets of parallel stiffeners; with that, in order to increase nodal stiffness at attachment points of stiffeners to each other, cavities of the formed three-edges cells are filled with an adhesive compound with further hardening.

EFFECT: increasing stiffness and temperature stability; minimising the weight of the frame of the space antenna reflector structure.

4 cl, 6 dwg