Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks
For ultra-reliable high-data-rate communication, the beyond fifth generation (B5G) and the sixth generation (6G) wireless networks will heavily rely on beamforming, with mobile users often located in the radiative near-field of large antenna systems. Therefore, a novel approach to shape both the amp...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/6/3323 |
| _version_ | 1797608993084932096 |
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| author | Alessandro Felaco Kamil Yavuz Kapusuz Hendrik Rogier Dries Vande Ginste |
| author_facet | Alessandro Felaco Kamil Yavuz Kapusuz Hendrik Rogier Dries Vande Ginste |
| author_sort | Alessandro Felaco |
| collection | DOAJ |
| description | For ultra-reliable high-data-rate communication, the beyond fifth generation (B5G) and the sixth generation (6G) wireless networks will heavily rely on beamforming, with mobile users often located in the radiative near-field of large antenna systems. Therefore, a novel approach to shape both the amplitude and phase of the electric near-field of any general antenna array topology is presented. Leveraging on the active element patterns generated by each antenna port, the beam synthesis capabilities of the array are exploited through Fourier analysis and spherical mode expansions. As a proof-of-concept, two different arrays are synthesized from the same active antenna element. These arrays are used to obtain 2D near-field patterns with sharp edges and a 30 dB difference between the fields’ magnitudes inside and outside the target regions. Various validation and application examples demonstrate the full control of the radiation in every direction, yielding optimal performance for the users in the focal zones, while significantly improving the management of the power density outside of them. Moreover, the advocated algorithm is very efficient, allowing for a fast, real-time modification and shaping of the array’s radiative near-field. |
| first_indexed | 2024-03-11T05:55:23Z |
| format | Article |
| id | doaj.art-7eb7db71f3f34ff89cb5184b66077f70 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T05:55:23Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7eb7db71f3f34ff89cb5184b66077f702023-11-17T13:49:06ZengMDPI AGSensors1424-82202023-03-01236332310.3390/s23063323Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G NetworksAlessandro Felaco0Kamil Yavuz Kapusuz1Hendrik Rogier2Dries Vande Ginste3IDLab, Department of Information Technology, Ghent University-IMEC, Technologiepark-Zwijnaarde 126, 9052 Ghent, BelgiumIDLab, Department of Information Technology, Ghent University-IMEC, Technologiepark-Zwijnaarde 126, 9052 Ghent, BelgiumIDLab, Department of Information Technology, Ghent University-IMEC, Technologiepark-Zwijnaarde 126, 9052 Ghent, BelgiumIDLab, Department of Information Technology, Ghent University-IMEC, Technologiepark-Zwijnaarde 126, 9052 Ghent, BelgiumFor ultra-reliable high-data-rate communication, the beyond fifth generation (B5G) and the sixth generation (6G) wireless networks will heavily rely on beamforming, with mobile users often located in the radiative near-field of large antenna systems. Therefore, a novel approach to shape both the amplitude and phase of the electric near-field of any general antenna array topology is presented. Leveraging on the active element patterns generated by each antenna port, the beam synthesis capabilities of the array are exploited through Fourier analysis and spherical mode expansions. As a proof-of-concept, two different arrays are synthesized from the same active antenna element. These arrays are used to obtain 2D near-field patterns with sharp edges and a 30 dB difference between the fields’ magnitudes inside and outside the target regions. Various validation and application examples demonstrate the full control of the radiation in every direction, yielding optimal performance for the users in the focal zones, while significantly improving the management of the power density outside of them. Moreover, the advocated algorithm is very efficient, allowing for a fast, real-time modification and shaping of the array’s radiative near-field.https://www.mdpi.com/1424-8220/23/6/3323array signal processingbeyond fifth-generation (B5G) wireless communicationholographic beamformingmultipole expansionnear-field focusing |
| spellingShingle | Alessandro Felaco Kamil Yavuz Kapusuz Hendrik Rogier Dries Vande Ginste Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks Sensors array signal processing beyond fifth-generation (B5G) wireless communication holographic beamforming multipole expansion near-field focusing |
| title | Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks |
| title_full | Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks |
| title_fullStr | Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks |
| title_full_unstemmed | Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks |
| title_short | Spherical Fourier-Transform-Based Real-TimeNear-Field Shaping and Focusing in Beyond-5G Networks |
| title_sort | spherical fourier transform based real timenear field shaping and focusing in beyond 5g networks |
| topic | array signal processing beyond fifth-generation (B5G) wireless communication holographic beamforming multipole expansion near-field focusing |
| url | https://www.mdpi.com/1424-8220/23/6/3323 |
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