Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas
This paper deals with the experimental testing of effective probe compensated near-field-far-field (NF-FF) transformations with spherical scanning requiring a minimum number of NF data. They rely on nonredundant sampling representations of the voltage measured by the probe, based on very flexible so...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/517934 |
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| author | Francesco D'Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi |
| author_facet | Francesco D'Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi |
| author_sort | Francesco D'Agostino |
| collection | DOAJ |
| description | This paper deals with the experimental testing of effective probe compensated near-field-far-field (NF-FF) transformations with spherical scanning requiring a minimum number of NF data. They rely on nonredundant sampling representations of the voltage measured by the probe, based on very flexible source modellings suitable for nonvolumetric antennas characterized by two dimensions very different from the other one. In particular, a cylinder ended in two half-spheres is adopted for modelling long antennas, whereas the quasi-planar ones are considered as enclosed in a rotational surface formed by two circular “bowls” having the same aperture diameter, but eventually different bending radii. The NF data needed to perform the classical spherical NF-FF transformation are then accurately and efficiently retrieved from the acquired nonredundant ones via optimal sampling interpolation formulas. A remarkable reduction of the number of the required NF data and, as a consequence, a significant measurement time saving can be so obtained. The experimental tests have been carried out at Antenna Characterization Lab of the University of Salerno and both the NF and FF reconstructions are resulted to be very good, thus confirming the accuracy and reliability of these NF-FF transformations from the experimental viewpoint too. |
| format | Article |
| id | doaj-art-8d08f9f372834c04afbb8d9cb0c2990a |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-8d08f9f372834c04afbb8d9cb0c2990a2025-02-03T01:29:13ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/517934517934Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric AntennasFrancesco D'Agostino0Flaminio Ferrara1Claudio Gennarelli2Rocco Guerriero3Massimo Migliozzi4Dipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II 132, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II 132, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II 132, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II 132, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II 132, Salerno, 84084 Fisciano, ItalyThis paper deals with the experimental testing of effective probe compensated near-field-far-field (NF-FF) transformations with spherical scanning requiring a minimum number of NF data. They rely on nonredundant sampling representations of the voltage measured by the probe, based on very flexible source modellings suitable for nonvolumetric antennas characterized by two dimensions very different from the other one. In particular, a cylinder ended in two half-spheres is adopted for modelling long antennas, whereas the quasi-planar ones are considered as enclosed in a rotational surface formed by two circular “bowls” having the same aperture diameter, but eventually different bending radii. The NF data needed to perform the classical spherical NF-FF transformation are then accurately and efficiently retrieved from the acquired nonredundant ones via optimal sampling interpolation formulas. A remarkable reduction of the number of the required NF data and, as a consequence, a significant measurement time saving can be so obtained. The experimental tests have been carried out at Antenna Characterization Lab of the University of Salerno and both the NF and FF reconstructions are resulted to be very good, thus confirming the accuracy and reliability of these NF-FF transformations from the experimental viewpoint too.http://dx.doi.org/10.1155/2013/517934 |
| spellingShingle | Francesco D'Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas International Journal of Antennas and Propagation |
| title | Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas |
| title_full | Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas |
| title_fullStr | Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas |
| title_full_unstemmed | Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas |
| title_short | Experimental Testing of Nonredundant Near-Field to Far-Field Transformations with Spherical Scanning Using Flexible Modellings for Nonvolumetric Antennas |
| title_sort | experimental testing of nonredundant near field to far field transformations with spherical scanning using flexible modellings for nonvolumetric antennas |
| url | http://dx.doi.org/10.1155/2013/517934 |
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