Single-Cut Phaseless Near-Field Measurements using Specialized Probes

Single-cut techniques allow to measure individual antenna pattern cuts in the near-field and transform them to far-field. This avoids the full-surface scanning of conventional measurements which reduces drastically measurements times. In some cases only the amplitude of the near-field can be measured, so phaseless techniques are required. This paper introduces a phaseless single-cut technique using a dual probe system. Both probes are connected to the same analyzer so the relative phase between them is known. This allows to establish a phase retrieval problem to extrapolate the phase of all measured samples in the single-cut. Two phase retrieval approaches are investigated showing the potential of this technique for fast antenna measurements in phaseless scenarios.