Experimental Assessment of a Non-Redundant Approach to Minimize Data in a Spherical NF-FF Transformation for Offset Mounted Elongated AUTs

作者

  • Francesco D’Agostino Department of Industrial Engineering University of Salerno, via Giovanni Paolo II, I-84084 Fisciano (Salerno), Italy
  • Flaminio Ferrara Department of Industrial Engineering University of Salerno, via Giovanni Paolo II, I-84084 Fisciano (Salerno), Italy https://orcid.org/0000-0002-3286-0879
  • Claudio Gennarelli Department of Industrial Engineering University of Salerno, via Giovanni Paolo II, I-84084 Fisciano (Salerno), Italy https://orcid.org/0000-0003-3090-9656
  • Rocco Guerriero Department of Industrial Engineering, University of Salerno
  • Massimo Migliozzi Department of Industrial Engineering University of Salerno, via Giovanni Paolo II, I-84084 Fisciano (Salerno), Italy https://orcid.org/0000-0001-8161-3121
  • Luigi Pascarella Department of Industrial Engineering University of Salerno, via Giovanni Paolo II, I-84084 Fisciano (Salerno), Italy https://orcid.org/0009-0007-1995-4735

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https://doi.org/10.13052/2026.ACES.J.410203

关键词:

antenna measurements, non-redundant sampling representations of the electromagnetic field, NF– FF transformations, offset mounting, spherical scan

摘要

This work concerns the experimental validation of a near-field (NF) spherical scanning for an offset mounted long antenna under test (AUT), that requires a non-redundant (NR), namely minimum, amount of NF data. We address the issue of decreasing the number of voltage samples required to execute the traditional NF-far-field transformation (NF-FFT) technique in a non-centered case scenario, which would generally need a considerably higher amount of input data as compared to the onset case. In particular, by exploiting the theory of the NR sampling representations of electromagnetic field and adopting a rounded cylinder model of the antenna, the number of required samples is exactly the same as the minimum one involved in the onset scenario. Experimental results, which prove the goodness and efficacy of the approach, are presented.

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Francesco D’Agostino received his Laurea degree in electronic engineering from the University of Salerno, Italy. At the same university he also received the Ph.D. degree in information engineering and then was appointed Associate Professor of electromagnetics. His research activity includes application of sampling techniques to electromagnetics and to innovative NF-FF transformations, diffraction problems, radar cross section evaluations, and electromagnetic compatibility. In this area, D’Agostino has coauthored five books and over 300 scientific papers, published in peer-reviewed international journals and conference proceedings. He serves as a regular Reviewer for several journals and conferences and has been invited speaker and chair for international events and conferences. D’Agostino is a senior member and fellow of Antenna Measurement Techniques Association (AMTA), senior member of the Institute of Electrical and Electronics Engineers (IEEE), member of the Editorial Board of MDPI Electronics and of the Journal of Electronics and Electrical Engineering, member of the European Association on Antennas and Propagation (EurAAP) and of the Italian Electromagnetic Society (SIEM).

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Flaminio Ferrara (Member, IEEE) was born in Salerno, Italy, in 1972. He received the Laurea degree in electronic engineering and the Ph.D. degree in information engineering from the University of Salerno, Fisciano, Salerno, Italy, in 1999 and 2003, respectively. Since 1999, he has been with the Research Group in Applied Electromagnetics, University of Salerno, where he is currently an Associate Professor of electromagnetic fields. He is the co-author of about 300 scientific articles, mainly in international journals and conference proceedings. In particular, he is the co-author of four books on NF-FF transformation techniques and the co-author of the chapter “Near-Field Antenna Measurement Techniques” of the Handbook of Antenna Technologies. His scientific interests include the application of sampling techniques to the efficient reconstruction of electromagnetic fields and to NF-FF transformation techniques, monostatic radar cross section evaluations of corner reflectors, and electromagnetic wave diffraction from canonical and complex structures. Ferrara is a reviewer for several international journals and a member of the Editorial Board of the International Journal of Antennas and Propagation and of Electronics.

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Claudio Gennarelli (Senior Member, IEEE) was born in Avellino, Italy, in 1953. He received the Laurea degree (summa cum laude) in Electronic Engineering from the University “Federico II” of Naples in 1978. From 1978 to 1983, he worked with the Research Group in Electromagnetics at the same University. In 1983, he became an Assistant Professor at the Istituto Universitario Navale of Naples. In 1987, he was appointed as Associate Professor of Antennas, formerly at the University of Ancona, Italy, and subsequently at the University of Salerno, Italy. In 1999, was appointed as Full Professor at the same University. He retired in November 2023. He has coauthored more than 480 scientific articles, mainly in international journals and conference proceedings. In particular, he has co-authored four books on near-field to far-field (NF-FF) transformation techniques, the chapter Near-field antenna measurement techniques of the Handbook of Antenna Technologies, and the book Non-Redundant Near-Field To Far-Field Transformation Techniques published by Scitech. The main topics of his scientific activity are reflector antennas analysis, antenna measurements, diffraction problems, radar cross section evaluations, application of sampling techniques to electromagnetics and to NF-FF transformations, NF-FF transformations with spiral scannings, and compensation of the probe positioning errors in the NF-FF transformations. He is a member of the Editorial board of the International Journal of Antennas and Propagation and was a member of the Editorial board of the Open Electrical and Electronic Engineering Journal from 2007 to 2019.

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Rocco Guerriero (Member, IEEE) received the Laurea degree in electronic engineering and the Ph.D. degree in information engineering from the University of Salerno, Fisciano, Italy, in 2003 and 2007, respectively. Since 2003, he has been with the Research Group in Applied Electromagnetics, University of Salerno, where he is currently an Associate Professor of electromagnetic fields. He is the co-author of more than 270 scientific articles, mainly in international journals and conference proceedings. In particular, he has co-authored three books on NF-FF transformation techniques and is the co-author of the chapter “Near-Field Antenna Measurement Techniques” of the Handbook of Antenna Technologies. His scientific interests include the application of sampling techniques to the efficient reconstruction of electromagnetic fields and to NF-FF transformation techniques, antenna measurements, inversion of ill-posed electromagnetic problems, analysis of microstrip reflectarrays, and diffraction problems. Guerriero is a reviewer for several international journals and conferences and a member of the Editorial Board of the International Journal of Antennas and Propagation and of Electronics.

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Massimo Migliozzi received the Laurea degree in electronic engineering and the Ph.D. degree in information engineering from the University of Salerno, Fisciano, Italy, in 1999 and 2009, respectively. He is currently a Research Fellow in electromagnetic fields. His scientific research interests include the application of sampling techniques to the efficient reconstruction of electromagnetic fields and to NF-FF transformation techniques, antenna measurements, electromagnetic compatibility, antenna design, and diffraction problems. He has coauthored about 200 scientific papers, mainly in international journals and conference proceedings and he serves as a reviewer for several international journals.

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Luigi Pascarella received the Bachelor’s and Master’s degrees (summa cum laude), both in Electronic Engineering, from the University “Federico II” of Naples, in 2020 and 2022, respectively. Since November 2022, he is a Ph.D. candidate in Industrial Engineering at the University of Salerno, Fisciano, Italy, with the Research Group in Applied Electromagnetics. His research focuses on developing innovative approaches for the synthesis of antenna arrays capable of radiating complex waveforms in the near-field, the application of advanced sampling techniques to electromagnetics and also to innovative NF-FF transformation techniques. He is a member of the Italian Electromagnetic Society (SIEM).

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已出版

2026-02-20

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[1]
F. . D’Agostino, F. . Ferrara, C. . Gennarelli, R. . Guerriero, M. . Migliozzi, 和 L. . Pascarella, 《Experimental Assessment of a Non-Redundant Approach to Minimize Data in a Spherical NF-FF Transformation for Offset Mounted Elongated AUTs》, ACES Journal, 卷 41, 期 02, 页 128–136, 2月 2026.

期

2026: Vol 41 Iss 2

栏目

Advances in Next-Generation Antenna Systems and Their Testing Methodologies