METHOD FOR MEASURING AND COMPENSATING FOR THE DEFORMATION OF THE RADIANT SURFACE OF AN ANTENNA AND ANTENNA COMPRISING MEANS EMPLOYING SUCH A METHOD

摘要

The present invention relates to a method for determining the error of the radiation pattern of an electronic scanning antenna, the error being due to the mechanical deformation of the radiating surface of the antenna, and the determination, in view of the correction of this error, being carried out from measurements of the mechanical deformation of the radiating surface. The method compensates for the deformation measured by calculating and applying a phase difference correction to the phase shifters. The present invention also relates to an antenna comprising means implementing such a method. The mechanical deformation is estimated by optical measurements. of measurement points is less than the number of radiating elements of the antenna. Correction of the error is carried out during the operation of the antenna. The invention applies in particular to antennas with electronic scanning at cost and mass reduced. / P