Multibeam characteristics of a negative refractive index shaped lens
Narrow beam width, higher gain and multibeam characteristics are demanded in 5G technology. Array antennas that are utilized in the existing mobile base stations have many drawbacks when operating at upper 5G frequency bands. For example, due to the high frequency operation, the antenna elements bec...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020
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| Online Access: | http://eprints.utm.my/93059/1/YoshihideYamada2020_MultibeamCharacteristicsofaNegativeRefractiveIndex.pdf |
| _version_ | 1796865547039670272 |
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| author | Ab. Hamid, Salbiah Abd. Rahman, Nurul Huda Yamada, Yoshihide Hung, Phan Van Quoc, Dinh Nguyen |
| author_facet | Ab. Hamid, Salbiah Abd. Rahman, Nurul Huda Yamada, Yoshihide Hung, Phan Van Quoc, Dinh Nguyen |
| author_sort | Ab. Hamid, Salbiah |
| collection | ePrints |
| description | Narrow beam width, higher gain and multibeam characteristics are demanded in 5G technology. Array antennas that are utilized in the existing mobile base stations have many drawbacks when operating at upper 5G frequency bands. For example, due to the high frequency operation, the antenna elements become smaller and thus, in order to provide higher gain, more antenna elements and arrays are required, which will cause the feeding network design to be more complex. The lens antenna is one of the potential candidates to replace the current structure in mobile base station. Therefore, a negative refractive index shaped lens is proposed to provide high gain and narrow beamwidth using energy conservation and Abbe’s sine principle. The aim of this study is to investigate the multibeam characteristics of a negative refractive index shaped lens in mobile base station applications. In this paper, the feed positions for the multibeam are selected on the circle from the center of the lens and the accuracy of the feed position is validated through Electromagnetic (EM) simulation. Based on the analysis performed in this study, a negative refractive index shaped lens with a smaller radius and slender lens than the conventional lens is designed, with the additional capability of performing wide-angle beam scanning. |
| first_indexed | 2024-03-05T20:58:40Z |
| format | Article |
| id | utm.eprints-93059 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T20:58:40Z |
| publishDate | 2020 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | utm.eprints-930592021-11-07T05:59:47Z http://eprints.utm.my/93059/ Multibeam characteristics of a negative refractive index shaped lens Ab. Hamid, Salbiah Abd. Rahman, Nurul Huda Yamada, Yoshihide Hung, Phan Van Quoc, Dinh Nguyen T Technology (General) Narrow beam width, higher gain and multibeam characteristics are demanded in 5G technology. Array antennas that are utilized in the existing mobile base stations have many drawbacks when operating at upper 5G frequency bands. For example, due to the high frequency operation, the antenna elements become smaller and thus, in order to provide higher gain, more antenna elements and arrays are required, which will cause the feeding network design to be more complex. The lens antenna is one of the potential candidates to replace the current structure in mobile base station. Therefore, a negative refractive index shaped lens is proposed to provide high gain and narrow beamwidth using energy conservation and Abbe’s sine principle. The aim of this study is to investigate the multibeam characteristics of a negative refractive index shaped lens in mobile base station applications. In this paper, the feed positions for the multibeam are selected on the circle from the center of the lens and the accuracy of the feed position is validated through Electromagnetic (EM) simulation. Based on the analysis performed in this study, a negative refractive index shaped lens with a smaller radius and slender lens than the conventional lens is designed, with the additional capability of performing wide-angle beam scanning. MDPI AG 2020 Article PeerReviewed application/pdf en http://eprints.utm.my/93059/1/YoshihideYamada2020_MultibeamCharacteristicsofaNegativeRefractiveIndex.pdf Ab. Hamid, Salbiah and Abd. Rahman, Nurul Huda and Yamada, Yoshihide and Hung, Phan Van and Quoc, Dinh Nguyen (2020) Multibeam characteristics of a negative refractive index shaped lens. Sensors (Switzerland), 20 (19). pp. 1-17. ISSN 1424-8220 http://dx.doi.org/10.3390/s20195703 |
| spellingShingle | T Technology (General) Ab. Hamid, Salbiah Abd. Rahman, Nurul Huda Yamada, Yoshihide Hung, Phan Van Quoc, Dinh Nguyen Multibeam characteristics of a negative refractive index shaped lens |
| title | Multibeam characteristics of a negative refractive index shaped lens |
| title_full | Multibeam characteristics of a negative refractive index shaped lens |
| title_fullStr | Multibeam characteristics of a negative refractive index shaped lens |
| title_full_unstemmed | Multibeam characteristics of a negative refractive index shaped lens |
| title_short | Multibeam characteristics of a negative refractive index shaped lens |
| title_sort | multibeam characteristics of a negative refractive index shaped lens |
| topic | T Technology (General) |
| url | http://eprints.utm.my/93059/1/YoshihideYamada2020_MultibeamCharacteristicsofaNegativeRefractiveIndex.pdf |
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