Phaseless Planar Near-Field Antenna Measurement Based on Truncated Amplitude Flow Algorithm

This paper introduces a novel phase retrieval method to handle the magnitude of the field in the phaseless planar near-field antenna measurement. The field is expressed in terms of the planar wave spectrum, and then converted into a quadratic programming problem, which is solved by the truncated amplitude flow (TAF) algorithm to restore the phase of the field. A virtual example shows that the proposed method is more stable and converges much faster than the commonly used Gerchberg-Saxton method.