EuCAP20_improved_reliability_phase_retrieval_broadband_antenna_measurements.pdf (226.69 kB)
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Improved-Reliability Phase-Retrieval with Broadband Antenna Measurements

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posted on 2022-07-29, 21:03 authored by Alexander Paulus, Josef Knapp, Jonas KornprobstJonas Kornprobst, Thomas F. Eibert

Conventional phaseless near-field measurement data is not adequate for reliable transformation into the far field. We tackle this challenge by a formulation working with multifrequency phaseless measurements under the assumption of coherently measured spectra. Such data is, for instance, obtained with a transmitting antenna under test and standard receivers featuring a nonzero coherent bandwidth. The focus of this work is on an advanced algorithm to demonstrate that this ansatz is very promising for further research and real-world investigations. Empirical studies based on simulation data demonstrate that appropriately merging this multi-frequency data significantly increases the chance of successful phaseless near-field far-field transformation. As a by-product, this multi-frequency phase retrieval method supports also the retrieval of the phase of farfield antenna measurements.


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Submitting Author's Institution

Technical University of Munich

Submitting Author's Country

  • Germany