Using Local Optimization Method to Reconstruct Far-Field Pattern Above PEC plane

In this paper, we present a novel method that utilizes amplitude-only data of electric field over two hemispheres for the far-field reconstruction above the perfectly electrically conducting (PEC) ground plane by the iterative Fourier transformation algorithm (IFTA).When the IFTA reaches the maximum number of iterations, then we can calculate the far-field (FF) by hemispherical near-filed to far-field (NF-FF) transformation. The simulated and numerical results are in good agreement with each other, which shows that this method works effectively.