Fast Measurement of Single-Cut Far-Field Pattern of two-dimensional antenna array at a Quasi-Far-Field Range

In this paper, a method of correcting the single-cut far-field (FF) mode of a two-dimensional antenna array at a quasi-far-field (QFF) range by using separable excitation coefficient variables is presented. The measurement distance required by this method merely needs to meet the FF condition of the antenna element. The measurement process of QFF measurement is similar to FF measurement, which can improve the test efficiency significantly compared with nearfield (NF) measurement. To validate the proposed method, antenna array with different beam shapes were simulated.