An antenna reflector with a deployable perimeter, comprising: a reflector surface which forms a predetermined dish-like shape and has a main dish axis ; the reflector surface comprised of an inner section which radially extends a first predetermined distance L1 from the main dish axis , the inner section immovably supported on a fixed backing structure and comprising a plurality of radial ribs , and an outer section comprising a deployable perimeter; and a deployable support structure configured to movably support at least a first portion of the outer section , the deployable support structure comprised of a plurality of rib tips disposed on end portions of the radial ribs that are located distal from the main dish axis and hingedly secured to the fixed backing structure, each having an elongated shape, and extending in a direction away from the main dish axis ; wherein the rib tips are configured to rotate on hinge members relative to the fixed backing structure from a first position in which the antenna reflector is made more compact for stowage, to a second position in which a diameter of the reflector surface is increased at a time of deployment; characterized in that at least a second portion of the outer section is supported on a plurality of rib extensions which extend from the fixed backing structure in radial directions relative to the main dish axis , and are immovable relative to the fixed backing structure; wherein the second portion of the outer section is fixed in place in relation to the inner section ; and wherein the first and second portions of the outer section are different portions. a reflector surface which forms a predetermined dish-like shape and has a main dish axis ; the reflector surface comprised of an inner section which radially extends a first predetermined distance L1 from the main dish axis , the inner section immovably supported on a fixed backing structure and comprising a plurality of radial ribs , and an outer section comprising a deployable perimeter; and a deployable support structure configured to movably support at least a first portion of the outer section , the deployable support structure comprised of a plurality of rib tips disposed on end portions of the radial ribs that are located distal from the main dish axis and hingedly secured to the fixed backing structure, each having an elongated shape, and extending in a direction away from the main dish axis ; wherein the rib tips are configured to rotate on hinge members relative to the fixed backing structure from a first position in which the antenna reflector is made more compact for stowage, to a second position in which a diameter of the reflector surface is increased at a time of deployment; characterized in that at least a second portion of the outer section is supported on a plurality of rib extensions which extend from the fixed backing structure in radial directions relative to the main dish axis , and are immovable relative to the fixed backing structure; wherein the second portion of the outer section is fixed in place in relation to the inner section ; and wherein the first and second portions of the outer section are different portions. <EOS>