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

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Bibliographic Details
Title:	Experimental Assessment of a Non-Redundant Approach to Minimize Data in a Spherical NF-FF Transformation for Offset Mounted Elongated AUTs.
Authors:	D'Agostino, Francesco¹ fdagostino@unisa.it, Ferrara, Flaminio¹ flferrara@unisa.it, Gennarelli, Claudio¹ cgennarelli@unisa.it, Guerriero, Rocco¹ rguerriero@unisa.it, Migliozzi, Massimo¹ mmigliozzi@unisa.it, Pascarella, Luigi¹ lpascarella@unisa.it
Source:	Applied Computational Electromagnetics Society Journal. Feb2026, Vol. 41 Issue 2, p128-136. 9p.
Subjects:	Antennas (Electronics), Data reduction, Empirical research, Compressed sensing, Electromagnetic measurements
Abstract:	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. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	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. [ABSTRACT FROM AUTHOR]
ISSN:	10544887
DOI:	10.13052/2026.ACES.J.410203