Design of convex and concave dual bent array for 5G lens antenna system
Previous research on the multi-beam system for the fifth generation (5G) application has shown that the number of feed elements of a lens antenna system at the mobile base station is increasing due to the massive MIMO requirements. The design of the array circuits of the 5G lens antenna systems will...
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Online Access: | http://eprints.utm.my/id/eprint/98667/1/YoshihideYamada2022_DesignofConvexandConcaveDualBent.pdf http://eprints.utm.my/id/eprint/98667/ http://dx.doi.org/10.11113/aej.V12.17326 |
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my.utm.986672023-01-30T04:38:51Z http://eprints.utm.my/id/eprint/98667/ Design of convex and concave dual bent array for 5G lens antenna system Tengah, Zanurlida Abd. Rahman, Nurul Huda Yamada, Yoshihide Subahir, Suhaila TK Electrical engineering. Electronics Nuclear engineering Previous research on the multi-beam system for the fifth generation (5G) application has shown that the number of feed elements of a lens antenna system at the mobile base station is increasing due to the massive MIMO requirements. The design of the array circuits of the 5G lens antenna systems will be more complicated due to the feeding structure, which consists of the power dividers and phase shifters, thus contributing to higher feeding losses. The antenna fabrication process also becomes more complicated. Besides that, the conventional array feed also produces a single radiation beam only. Thus, a large space is needed, where array feed antennas should be arranged to perform wide-angle beam scanning for 5G massive MIMO operation. Therefore, to overcome these issues, this paper uses a bent array configuration as the lens antenna feed to produce bifurcated beam radiation and has a wide beam angle from the feed radiator to the lens edge. Multiple bent arrays are arranged on the lens axis to generate a multi-beam by cylindrical lens antenna. This paper shows a comparison of the bent array in convex and concave configurations. This process investigates the mutual coupling when more than one bent array is arranged as feed radiators. By comparing the arrays in convex and concave structures, it is observed that the convex structure produces a better-bifurcated beam with a smaller middle lobe. The antenna also produces the same bifurcated beam shifting angle, θs for both ports, when s = 4λ is used. It is verified as the optimum spacing value between two bent array structures by the optimization process. Penerbit UTM Press 2022-09 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/98667/1/YoshihideYamada2022_DesignofConvexandConcaveDualBent.pdf Tengah, Zanurlida and Abd. Rahman, Nurul Huda and Yamada, Yoshihide and Subahir, Suhaila (2022) Design of convex and concave dual bent array for 5G lens antenna system. ASEAN Engineering Journal, 12 (3). pp. 143-148. ISSN 2586-9159 http://dx.doi.org/10.11113/aej.V12.17326 DOI:10.11113/aej.V12.17326 |
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TK Electrical engineering. Electronics Nuclear engineering Tengah, Zanurlida Abd. Rahman, Nurul Huda Yamada, Yoshihide Subahir, Suhaila Design of convex and concave dual bent array for 5G lens antenna system |
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Previous research on the multi-beam system for the fifth generation (5G) application has shown that the number of feed elements of a lens antenna system at the mobile base station is increasing due to the massive MIMO requirements. The design of the array circuits of the 5G lens antenna systems will be more complicated due to the feeding structure, which consists of the power dividers and phase shifters, thus contributing to higher feeding losses. The antenna fabrication process also becomes more complicated. Besides that, the conventional array feed also produces a single radiation beam only. Thus, a large space is needed, where array feed antennas should be arranged to perform wide-angle beam scanning for 5G massive MIMO operation. Therefore, to overcome these issues, this paper uses a bent array configuration as the lens antenna feed to produce bifurcated beam radiation and has a wide beam angle from the feed radiator to the lens edge. Multiple bent arrays are arranged on the lens axis to generate a multi-beam by cylindrical lens antenna. This paper shows a comparison of the bent array in convex and concave configurations. This process investigates the mutual coupling when more than one bent array is arranged as feed radiators. By comparing the arrays in convex and concave structures, it is observed that the convex structure produces a better-bifurcated beam with a smaller middle lobe. The antenna also produces the same bifurcated beam shifting angle, θs for both ports, when s = 4λ is used. It is verified as the optimum spacing value between two bent array structures by the optimization process. |
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Article |
author |
Tengah, Zanurlida Abd. Rahman, Nurul Huda Yamada, Yoshihide Subahir, Suhaila |
author_facet |
Tengah, Zanurlida Abd. Rahman, Nurul Huda Yamada, Yoshihide Subahir, Suhaila |
author_sort |
Tengah, Zanurlida |
title |
Design of convex and concave dual bent array for 5G lens antenna system |
title_short |
Design of convex and concave dual bent array for 5G lens antenna system |
title_full |
Design of convex and concave dual bent array for 5G lens antenna system |
title_fullStr |
Design of convex and concave dual bent array for 5G lens antenna system |
title_full_unstemmed |
Design of convex and concave dual bent array for 5G lens antenna system |
title_sort |
design of convex and concave dual bent array for 5g lens antenna system |
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Penerbit UTM Press |
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2022 |
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http://eprints.utm.my/id/eprint/98667/1/YoshihideYamada2022_DesignofConvexandConcaveDualBent.pdf http://eprints.utm.my/id/eprint/98667/ http://dx.doi.org/10.11113/aej.V12.17326 |
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