Phaseless Near Field Antenna Measurements from Two Surface Scans -Numerical and Experimental Investigations

Benjamin Fuchs, Michael Mattes, Sebastien Rondineau, Laurent Le Coq

    Research output: Contribution to journalJournal articleResearchpeer-review

    232 Downloads (Pure)

    Abstract

    Phaseless near field measurements are an attractive solution to characterize antennas at reasonable costs, especially at high frequencies. The source reconstruction method is applied to compute the equivalent currents representing the antenna under test using two phaseless surface scans. The reconstruction of these equivalent currents uses recently proposed phase retrieval algorithms that mitigate some of the shortcomings of existing techniques with an automatic settings of the initial guess. In addition to be readily available and easy to be plugged in electromagnetic modeling tools, these routines exhibit good phase recovery performances and robustness with respect to noise, separation between scanning planes and near field sampling step. The proposed procedure is applied to determine the far field radiated by various types of antennas operating in different frequency bands from phaseless near field scans. Experimental validations of two radiating structures show its potentialities and interest.
    Original languageEnglish
    JournalIEEE Transactions on Antennas and Propagation
    Volume68
    Issue number3
    Pages (from-to)2315 - 2322
    ISSN0018-926X
    DOIs
    Publication statusPublished - 2020

    Keywords

    • Antenna measurements
    • Phaseless measurement
    • Phase retrieval

    Fingerprint

    Dive into the research topics of 'Phaseless Near Field Antenna Measurements from Two Surface Scans -Numerical and Experimental Investigations'. Together they form a unique fingerprint.

    Cite this