Actuation system for antenna reflector with deformable reflecting surface

An actuation system configured to actuate a reflector including a chassis and a flexible membrane, the flexible membrane being fixed to the chassis such that the flexible membrane is deformable relative to the chassis, the actuation system comprising:

• a support fixed to the chassis of the reflector;
• a plurality of deformation devices, each deformation device of the plurality of deformation devices including a pusher element adapted to be driven in translation relative to the support along a first axis, the pusher element including a part adapted to come into contact with the flexible membrane at a point to deform the flexible membrane;
• an actuation device adapted to individually drive the pusher element of each deformation device along the first axis in translation;
• and
• a selector device adapted to move the actuation device toward each deformation device individually, in such a manner that the actuation device is configured to individually drive the pusher element of any deformation device selected from the plurality of deformation devices in translation.