Accurate 3D Phase Recovery of automotive Antennas Through Lte Power Measurements On A Cylindrical Surface

Linear Phase Retrieval for Near-Field Measurements with Locally Known Phase Relations

“…Supported by the comprehensive research in the field of phase retrieval, e.g., see [14]- [19], the antenna community has proposed various approaches for obtaining the FF behavior from NF measurements without reliable phase information, as required by common NFFFTs [20]- [25]. Recent phaseless NF antenna measurements rely on holography [26] with a fixed and known reference antenna [11], [12], [27]- [29], on measurements on multiple surfaces [3], [4], [10], [13], [30]- [32], apply specialized probe antennas [1], [2], [12], [33]- [35] or utilize multi-frequency information [36], [37]. The holographic approach is often limited by the dynamic range of the measurement setup and suffers from practical issues related to the positioning of the reference antenna without obstructing the measurement probe or antenna under test (AUT) at any time.…”