Transmit-array antenna comprising a mechanism for reorienting the direction of the beam

A transmit-array radiofrequency antenna comprising:

• a support;
• a transmit-array arranged in a transmission plane, the transmit-array comprising a printed circuit and a plurality of basic cells produced in a central zone of the printed circuit,
• at least one focal source, fixed on the support and arranged at the focal length from the array;
• a displacement mechanism for moving the transmit-array, the mechanism being connected to the support and being adapted to translationally move the transmit-array in at least one of the two directions in the transmission plane, the displacement mechanism being connected to the printed circuit in its peripheral zone;
• wherein the displacement mechanism comprises:
• two servomotors;
• two first pantograph devices, each comprising two deformable parallelograms each formed by four articulation segments connected pairwise by a flexible articulation forming a pivot link and one of the segments of which is common to the two parallelograms,
• in which displacement mechanism, the common segment of each of the two first pantograph devices is connected to one of the two servomotors, whereas one of the segments parallel to the common segment is fixed on the printed circuit in its peripheral zone and the other one of the segments parallel to the common segment is fixed on the support, the connection between each of the common segments with one of the two servomotors being carried out such that one of the servomotors may move the common segment of one of the two first devices and hence move the printed circuit in approximately one of the two directions (X) in the transmission plane, whereas the other one of the servomotors may move the common segment of one of the two first devices and hence move the printed circuit in approximately the other one of the two directions (Y) in the transmission plane.