The invention belongs to the technical field of an antenna, and discloses an automatic-resilient, reconfigurable,
satellite-borne and expandable antenna. The automatic-resilient, reconfigurable,
satellite-borne and expandable antenna is provided with a
central cylinder, a plurality of variable parabolic
radiation ribs and a thin film reflection surface, wherein the plurality of variable parabolic
radiation ribs are wound around the
central cylinder, and the thin film reflection surface is folded among the variable parabolic
radiation ribs which are in winding states in an annular concave-convex shape. With the adoption of the variable parabolic radiation ribs manufactured from an enhanced
polymer, an expansion structure is only provided with the variable parabolic radiation ribs and the carbon
fiber central cylinder which can be wound, the automatic-resilient, reconfigurable,
satellite-borne and expandable antenna is simple in structure, the automatic-resilient function can be achieved, a complicated folding and unfolding structure comprising the central cylinder and a
gear transmission mechanism of a traditional winding rib antenna is not needed, and the service reliability of the antenna is improved; a shape memory
actuator layer is attached onto a back surface of a reflection film, deformation trends under a space
thermal radiation effect offset with each other,
thermal deformation of a film surface under the space
thermal radiation effect is effectively reduced, and the on-rail accuracy of the reflection film surface is improved; and by employing a
honeycomb structure, and the weight of the antenna also can be effectively reduced.