Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning
An effective procedure to correct known 3D probe positioning errors affecting the near-field–far-field transformation (NF–FF) with non-conventional plane rectangular scanning, named planar wide-mesh scanning (PWMS), is developed in this paper. It relies on the non-redundant sampling representations...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/3/542 |
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| author | Florindo Bevilacqua Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi Giovanni Riccio |
| author_facet | Florindo Bevilacqua Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi Giovanni Riccio |
| author_sort | Florindo Bevilacqua |
| collection | DOAJ |
| description | An effective procedure to correct known 3D probe positioning errors affecting the near-field–far-field transformation (NF–FF) with non-conventional plane rectangular scanning, named planar wide-mesh scanning (PWMS), is developed in this paper. It relies on the non-redundant sampling representations of electromagnetic fields and related optimal sampling interpolation (OSI) expansions and has been devised when a quasi-planar antenna under test is considered as suitably modelled by either a double bowl or an oblate spheroid. Such an algorithm first makes use of the so-called <i>k-correction</i> to compensate for the errors occurring when the actual sampling points deviate from the acquisition plane and then adopts an iterative procedure to restore the NF samples at the points specified by the used non-redundant sampling representation from those obtained at the previous step and affected by 2D positioning errors. Finally, once the regularly arranged PWMS samples have been calculated, the NF data required to compute the classic plane-rectangular NF–FF transformation are accurately evaluated by using an effective 2D OSI algorithm. Several numerical results are presented in order to assess the effectiveness of the devised approach. |
| first_indexed | 2024-03-11T09:48:28Z |
| format | Article |
| id | doaj.art-cfbe4b0f933849279d1c45d550740105 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T09:48:28Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-cfbe4b0f933849279d1c45d5507401052023-11-16T16:27:57ZengMDPI AGElectronics2079-92922023-01-0112354210.3390/electronics12030542Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh ScanningFlorindo Bevilacqua0Francesco D’Agostino1Flaminio Ferrara2Claudio Gennarelli3Rocco Guerriero4Massimo Migliozzi5Giovanni Riccio6Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyDepartment of Information and Electrical Engineering and Applied Mathematics, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), ItalyAn effective procedure to correct known 3D probe positioning errors affecting the near-field–far-field transformation (NF–FF) with non-conventional plane rectangular scanning, named planar wide-mesh scanning (PWMS), is developed in this paper. It relies on the non-redundant sampling representations of electromagnetic fields and related optimal sampling interpolation (OSI) expansions and has been devised when a quasi-planar antenna under test is considered as suitably modelled by either a double bowl or an oblate spheroid. Such an algorithm first makes use of the so-called <i>k-correction</i> to compensate for the errors occurring when the actual sampling points deviate from the acquisition plane and then adopts an iterative procedure to restore the NF samples at the points specified by the used non-redundant sampling representation from those obtained at the previous step and affected by 2D positioning errors. Finally, once the regularly arranged PWMS samples have been calculated, the NF data required to compute the classic plane-rectangular NF–FF transformation are accurately evaluated by using an effective 2D OSI algorithm. Several numerical results are presented in order to assess the effectiveness of the devised approach.https://www.mdpi.com/2079-9292/12/3/542antenna characterizationnear-field–far-field transformation techniquesnon-redundant sampling representation of electromagnetic fieldsprobe positioning errors compensation |
| spellingShingle | Florindo Bevilacqua Francesco D’Agostino Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Massimo Migliozzi Giovanni Riccio Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning Electronics antenna characterization near-field–far-field transformation techniques non-redundant sampling representation of electromagnetic fields probe positioning errors compensation |
| title | Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning |
| title_full | Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning |
| title_fullStr | Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning |
| title_full_unstemmed | Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning |
| title_short | Pattern Reconstruction from Near-Field Data Affected by 3D Probe Positioning Errors Collected via Planar-Wide Mesh Scanning |
| title_sort | pattern reconstruction from near field data affected by 3d probe positioning errors collected via planar wide mesh scanning |
| topic | antenna characterization near-field–far-field transformation techniques non-redundant sampling representation of electromagnetic fields probe positioning errors compensation |
| url | https://www.mdpi.com/2079-9292/12/3/542 |
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