Compressed sensing approach for reflectarray diagnostic from far field measurements

International audienceA compressed sensing based approach is proposed in order to diagnose reflectarrays from far field measurements. The technique requires the preliminary measurement of the failure-free reflectarray. With this a priori knowledge, only the faulty elements have to be retrieved which leads to a significant reduction of required measurement data compared to conventional approaches. The proposed approach is applied to post-process measured reflectarray far field data and the diagnostic results are compared to those obtained by the standard back-propagation technique and an inversion matrix method