A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion
A new probe-compensated near-field-far-field (NF-FF) transformation for aperture antennas in a cylindrical scanning geometry is presented. Such a technique takes the advantage of the NF data acquisition made according to a very efficient sampling strategy along a helix and exploits a proper aperture...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2012/753156 |
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| _version_ | 1832553202960039936 |
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| author | Amedeo Capozzoli Claudio Curcio Giuseppe D'Elia Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Angelo Liseno |
| author_facet | Amedeo Capozzoli Claudio Curcio Giuseppe D'Elia Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Angelo Liseno |
| author_sort | Amedeo Capozzoli |
| collection | DOAJ |
| description | A new probe-compensated near-field-far-field (NF-FF) transformation for aperture antennas in a cylindrical scanning geometry is presented. Such a technique takes the advantage of the NF data acquisition made according to a very efficient sampling strategy along a helix and exploits a proper aperture field expansion based on the use of the prolate spheroidal wave functions (PSWFs), accounting for the a priori information on shape and size of the antenna under test. The unknown aperture field expansion coefficients of the PSWFs are evaluated from the acquired voltage samples by an inversion process using a regularized version of the singular value decomposition method. Experimental results on connected and disconnected radiating aperture antennas, including sum and difference patterns, show the effectiveness of the approach and, in particular, how it enables a serious reduction of the measurement points without impairing the FF estimation accuracy. |
| format | Article |
| id | doaj-art-7d711cdfc49a4dbf8570bb71d7ef5e51 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-7d711cdfc49a4dbf8570bb71d7ef5e512025-02-03T05:55:18ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772012-01-01201210.1155/2012/753156753156A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal ExpansionAmedeo Capozzoli0Claudio Curcio1Giuseppe D'Elia2Flaminio Ferrara3Claudio Gennarelli4Rocco Guerriero5Angelo Liseno6Dipartimento di Ingegneria Biomedica, Elettronica e delle Telecomunicazioni, Università di Napoli Federico II, Via Claudio 21, 80125 Napoli, ItalyDipartimento di Ingegneria Biomedica, Elettronica e delle Telecomunicazioni, Università di Napoli Federico II, Via Claudio 21, 80125 Napoli, ItalyDipartimento di Ingegneria Biomedica, Elettronica e delle Telecomunicazioni, Università di Napoli Federico II, Via Claudio 21, 80125 Napoli, ItalyDipartimento di Ingegneria Elettronica ed Ingegneria Informatica, Università di Salerno, via Ponte Don Melillo, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Elettronica ed Ingegneria Informatica, Università di Salerno, via Ponte Don Melillo, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Elettronica ed Ingegneria Informatica, Università di Salerno, via Ponte Don Melillo, Salerno, 84084 Fisciano, ItalyDipartimento di Ingegneria Biomedica, Elettronica e delle Telecomunicazioni, Università di Napoli Federico II, Via Claudio 21, 80125 Napoli, ItalyA new probe-compensated near-field-far-field (NF-FF) transformation for aperture antennas in a cylindrical scanning geometry is presented. Such a technique takes the advantage of the NF data acquisition made according to a very efficient sampling strategy along a helix and exploits a proper aperture field expansion based on the use of the prolate spheroidal wave functions (PSWFs), accounting for the a priori information on shape and size of the antenna under test. The unknown aperture field expansion coefficients of the PSWFs are evaluated from the acquired voltage samples by an inversion process using a regularized version of the singular value decomposition method. Experimental results on connected and disconnected radiating aperture antennas, including sum and difference patterns, show the effectiveness of the approach and, in particular, how it enables a serious reduction of the measurement points without impairing the FF estimation accuracy.http://dx.doi.org/10.1155/2012/753156 |
| spellingShingle | Amedeo Capozzoli Claudio Curcio Giuseppe D'Elia Flaminio Ferrara Claudio Gennarelli Rocco Guerriero Angelo Liseno A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion International Journal of Antennas and Propagation |
| title | A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion |
| title_full | A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion |
| title_fullStr | A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion |
| title_full_unstemmed | A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion |
| title_short | A Probe-Compensated Helicoidal NF-FF Transformation for Aperture Antennas Using a Prolate Spheroidal Expansion |
| title_sort | probe compensated helicoidal nf ff transformation for aperture antennas using a prolate spheroidal expansion |
| url | http://dx.doi.org/10.1155/2012/753156 |
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