Reduction of Sampling Sizes in Spherical Phaseless Antenna Measurements using Filters

The 3D radiation pattern of antennas is often required for characterization but is a complex task. Magnitude-only measurements have been proposed to mitigate the sensitive phase acquisition but bring theirs new set of challenges. In particular, current procedures in phaseless antenna testing require many field samples. To enable a reliable reduction of the sampling sizes, a filtering approach for the two scan technique is reviewed and proposed. The validity and stability of the approach is evaluated using both simulation and experimental dataset.