feed and control electronics the array is situated in the focal zone of the reflector while the feed and control electronics includes a plurality of attenuator and phase shifter circuits controlled by a control unit with said circuits having their outputs connected to at least one combiner the invention is particularly suitable for space telecommunications application_number US 32571689 A description an antenna in accordance with the invention as shown in fig1 comprises a parabolic reflector 10 which is fed excentrically by a plane array 11 of sources situated in the vicinity of the focus f of the reflector with the array 12 representing the array of virtual sources that corresponds to the array 11 fig2 shows an example of various different amplitude distributions for displacements along two directions ox and oy along the array 11 of sources the diameters of the disks shown in fig2 represent the amplitudes of the signals received by the various array sources when the sensor has a fixed distribution law the efficiency of the sensor in sensing these various energy distributions cannot be optimal the same applies to phase distribution thus if a source is notionally displaced relative to the focus of the reflector the radiation output of the antenna is degraded in an antenna of the invention the amplitude and the phase of each elementary source is adjusted this makes it possible to obtain optimum synthesis of each elementary source as though.