Impact of Scattering Within a Multipath Simulator Antenna Array on the Ricean Fading Distribution Parameters in OTA Testing

摘要: In this paper, we investigate the unwanted scattering that exists within multipath simulator (MPS) array antennas employed in over air (OTA) testing of mobile terminals. The impact is evaluated terms measurement uncertainty average received power and Ricean $K$ -factor. maximum ratio combining diversity investigated for a generic device under test comprising two half-wavelength dipole antennas. We provide closed-form expressions uncertainties -factor uniform circular MPS 2-D uniformly distributed angle-of-arrival spectrum. also derive number minimum ring radius system as function separation between most distant antenna elements if employs linear array. As result, design guidelines antennas, wavelength carrier frequency.