A Planar NF–FF Transformation for Quasi-Spherical Antennas using the Innovative Spiral Scanning

Authors

  • F. D’Agostino Dipartimento di Ingegneria Industriale University of Salerno, via Giovanni Paolo II, 132 - 84084 Fisciano, Italy
  • F. Ferrara Dipartimento di Ingegneria Industriale University of Salerno, via Giovanni Paolo II, 132 - 84084 Fisciano, Italy
  • C. Gennarelli Dipartimento di Ingegneria Industriale University of Salerno, via Giovanni Paolo II, 132 - 84084 Fisciano, Italy
  • R. Guerriero Dipartimento di Ingegneria Industriale University of Salerno, via Giovanni Paolo II, 132 - 84084 Fisciano, Italy
  • M. Migliozzi Dipartimento di Ingegneria Industriale University of Salerno, via Giovanni Paolo II, 132 - 84084 Fisciano, Italy

Keywords:

Antenna measurements, near-field – far-field transformation techniques, nonredundant sampling representations, planar spiral scanning

Abstract

An effective probe compensated near-field– far-field (NF–FF) transformation with planar spiral scanning, using a minimum number of NF data, has been experimentally validated. It allows a remarkable measurement time saving, due to the continuous movements of the positioning systems and to the reduced number of needed NF data. Such a technique is based on a nonredundant sampling representation of the voltage acquired by the probe, obtained by using the theoretical foundations of the NF–FF transformations with spiral scans for quasi-spherical antennas. Then, the NF data needed by the plane-rectangular NF–FF transformation are efficiently recovered from those acquired along the spiral, via an optimal sampling interpolation formula.

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References

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Published

2021-07-27

How to Cite

[1]
F. D’Agostino, F. Ferrara, C. Gennarelli, R. Guerriero, and M. Migliozzi, “A Planar NF–FF Transformation for Quasi-Spherical Antennas using the Innovative Spiral Scanning”, ACES Journal, vol. 33, no. 01, pp. 115–118, Jul. 2021.

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