Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan
A very flexible source model is proposed here to reduce the volumetric redundancy when considering the pattern reconstruction of three-dimensional modular antennas by means of a near-field spherical scan using a non-redundant sampling representation. Since this last facet is based on the appropriate...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/13/2060 |
| _version_ | 1797480398978023424 |
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| author | Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Giovanni Riccio |
| author_facet | Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Giovanni Riccio |
| author_sort | Francesco D’Agostino |
| collection | DOAJ |
| description | A very flexible source model is proposed here to reduce the volumetric redundancy when considering the pattern reconstruction of three-dimensional modular antennas by means of a near-field spherical scan using a non-redundant sampling representation. Since this last facet is based on the appropriate choice of antenna model for the evaluation of the optimal parameters to be used, the proposed geometry guaranteed the minimum number of needed samples and then a significant time saved for data acquisition on the near-field spherical grid. Then, an optimal interpolation algorithm used these non-redundant samples for an accurate evaluation of the near-field data that were usable in the classical near-field to far-field transformation. The reliability and accuracy of the reconstruction process were proven by means of numerical tests. These last showed a remarkable reduction (about 53%) in needed near-field samples as compared to those required by the classical near-field to far-field transformation and this was achieved without any loss in accuracy. |
| first_indexed | 2024-03-09T21:59:26Z |
| format | Article |
| id | doaj.art-3c6f3bfd19244a1eacd492ae423ea075 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T21:59:26Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-3c6f3bfd19244a1eacd492ae423ea0752023-11-23T19:52:16ZengMDPI AGElectronics2079-92922022-06-011113206010.3390/electronics11132060Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical ScanFrancesco D’Agostino0Flaminio Ferrara1Claudio Gennarelli2Rocco Guerriero3Giovanni Riccio4Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, ItalyDepartment of Information and Electrical Engineering and Applied Mathematics, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, ItalyA very flexible source model is proposed here to reduce the volumetric redundancy when considering the pattern reconstruction of three-dimensional modular antennas by means of a near-field spherical scan using a non-redundant sampling representation. Since this last facet is based on the appropriate choice of antenna model for the evaluation of the optimal parameters to be used, the proposed geometry guaranteed the minimum number of needed samples and then a significant time saved for data acquisition on the near-field spherical grid. Then, an optimal interpolation algorithm used these non-redundant samples for an accurate evaluation of the near-field data that were usable in the classical near-field to far-field transformation. The reliability and accuracy of the reconstruction process were proven by means of numerical tests. These last showed a remarkable reduction (about 53%) in needed near-field samples as compared to those required by the classical near-field to far-field transformation and this was achieved without any loss in accuracy.https://www.mdpi.com/2079-9292/11/13/2060volumetric antenna measurementsnear-field to far-field transformation techniquesnon-redundant sampling representation of electromagnetic fieldsspherical scanning |
| spellingShingle | Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Giovanni Riccio Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan Electronics volumetric antenna measurements near-field to far-field transformation techniques non-redundant sampling representation of electromagnetic fields spherical scanning |
| title | Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan |
| title_full | Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan |
| title_fullStr | Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan |
| title_full_unstemmed | Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan |
| title_short | Pattern Reconstruction of 3-D Modular Antennas by Means of a Non-Redundant Near-Field Spherical Scan |
| title_sort | pattern reconstruction of 3 d modular antennas by means of a non redundant near field spherical scan |
| topic | volumetric antenna measurements near-field to far-field transformation techniques non-redundant sampling representation of electromagnetic fields spherical scanning |
| url | https://www.mdpi.com/2079-9292/11/13/2060 |
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