Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review
An overview of the near-field-far-field (NF-FF) transformation techniques with innovative spiral scannings, useful to derive the radiation patterns of the antennas commonly employed in the modern wireless communication systems, is provided in this paper. The theoretical background and the developmen...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/143084 |
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| author | Renato Cicchetti Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi |
| author_facet | Renato Cicchetti Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi |
| author_sort | Renato Cicchetti |
| collection | DOAJ |
| description | An overview of the near-field-far-field (NF-FF) transformation techniques with innovative spiral scannings, useful to derive the radiation patterns of the antennas commonly employed in the modern wireless communication systems, is provided in this paper. The theoretical background and the development of a unified theory of the spiral scannings for quasi-spherical and nonspherical antennas are described, and an optimal sampling interpolation expansion to evaluate the probe response on a quite arbitrary rotational surface from a nonredundant number of its samples, collected along a proper spiral wrapping it, is presented. This unified theory can be applied to spirals wrapping the conventional scanning surfaces and makes it possible to accurately reconstruct the NF data required by the NF-FF transformation employing the corresponding classical scanning. A remarkable reduction of the measurement time is so achieved, due to the use of continuous and synchronized movements of the positioning systems and to the reduced number of needed NF measurements. Some numerical and experimental results relevant to the spherical spiral scanning case when dealing with quasi-planar and electrically long antennas are shown. |
| format | Article |
| id | doaj-art-475dc6fca4144b0f8c2298f15fa72631 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-475dc6fca4144b0f8c2298f15fa726312025-02-03T05:47:35ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/143084143084Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive ReviewRenato Cicchetti0Francesco D’Agostino1Flaminio Ferrara2Claudio Gennarelli3Rocco Guerriero4Massimo Migliozzi5Dipartimento di Ingegneria dell’Informazione, Elettronica e Telecomunicazioni, Università di Roma “La Sapienza”, Via Eudossiana 18, 00184 Roma, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, ItalyDipartimento di Ingegneria Industriale, Università di Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, ItalyAn overview of the near-field-far-field (NF-FF) transformation techniques with innovative spiral scannings, useful to derive the radiation patterns of the antennas commonly employed in the modern wireless communication systems, is provided in this paper. The theoretical background and the development of a unified theory of the spiral scannings for quasi-spherical and nonspherical antennas are described, and an optimal sampling interpolation expansion to evaluate the probe response on a quite arbitrary rotational surface from a nonredundant number of its samples, collected along a proper spiral wrapping it, is presented. This unified theory can be applied to spirals wrapping the conventional scanning surfaces and makes it possible to accurately reconstruct the NF data required by the NF-FF transformation employing the corresponding classical scanning. A remarkable reduction of the measurement time is so achieved, due to the use of continuous and synchronized movements of the positioning systems and to the reduced number of needed NF measurements. Some numerical and experimental results relevant to the spherical spiral scanning case when dealing with quasi-planar and electrically long antennas are shown.http://dx.doi.org/10.1155/2014/143084 |
| spellingShingle | Renato Cicchetti Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review International Journal of Antennas and Propagation |
| title | Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review |
| title_full | Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review |
| title_fullStr | Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review |
| title_full_unstemmed | Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review |
| title_short | Near-Field to Far-Field Transformation Techniques with Spiral Scannings: A Comprehensive Review |
| title_sort | near field to far field transformation techniques with spiral scannings a comprehensive review |
| url | http://dx.doi.org/10.1155/2014/143084 |
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