Warping strategy to diagnostic faulty elements in planar Array Antennas

In this paper, the problem of planar array antenna diagnostics from near-field measurements is addressed by the Back transformation method and the Matrix Method. Reconstruction results obtained by collecting the field with the non uniform sampling proposed in [3] are compared to the ones obtained by the classical one half wavelength sampling. It is shown that in order to solve an array diagnostic problem, the non uniform sampling strategy is more efficient than one half wavelength sampling.