Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System
Radial Line Slot Array (RLSA) antennas have appealing features including high gain and high efficiency combined with a low profile. Especially by highlighting their structural simplicity, RLSA antennas can be good competitors to reflector antennas if the efficiency parameters are improved. In this a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10286491/ |
| _version_ | 1797649767223787520 |
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| author | Onur Cumurcu Hamid Torpi Alper Caliskan |
| author_facet | Onur Cumurcu Hamid Torpi Alper Caliskan |
| author_sort | Onur Cumurcu |
| collection | DOAJ |
| description | Radial Line Slot Array (RLSA) antennas have appealing features including high gain and high efficiency combined with a low profile. Especially by highlighting their structural simplicity, RLSA antennas can be good competitors to reflector antennas if the efficiency parameters are improved. In this article, a novel approach is presented to improve the aperture efficiency of RLSAs, with a significant increase of around 10% being achieved. The core principle of this method is the use of non-uniform slot density on the RLSA antenna rings, in addition to non-uniform slot length. RLSA antennas consist of many spiral rings and slots are placed on these rings. With the help of new the concept, slot density has been increased especially on the outer spiral lines, and thus significant improvement has been achieved in both aperture efficiency and return loss. In order to verify the concept, a prototype antenna was fabricated at 26 GHz. The measured results of the prototype antenna show an excellent aperture efficiency of 45%, peak gain of 30.3 dB, and axial ratio of less than 3 dB at operating the frequency band. Also, the antenna reflection coefficient value is less than -10 dB between 24.75 GHz and 27.5 GHz and side lobe levels are below 18 dB, which indicate good pattern characteristic. |
| first_indexed | 2024-03-11T15:50:44Z |
| format | Article |
| id | doaj.art-34f21113cf244ff49f6696b31d2d8cfe |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-11T15:50:44Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-34f21113cf244ff49f6696b31d2d8cfe2023-10-25T23:00:55ZengIEEEIEEE Access2169-35362023-01-011111568811569810.1109/ACCESS.2023.332519310286491Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication SystemOnur Cumurcu0https://orcid.org/0000-0001-6106-1227Hamid Torpi1Alper Caliskan2https://orcid.org/0000-0002-4608-8023Informatics and Information Security Research Center (BİLGEM), The Scientific and Technological Research Council of Turkey (TÜBİTAK), İzmit, Kocaeli, TurkeyDepartment of Electronics and Communications Engineering, Yildiz Technical University, Istanbul, TurkeyDepartment of Electronics and Communications Engineering, Yildiz Technical University, Istanbul, TurkeyRadial Line Slot Array (RLSA) antennas have appealing features including high gain and high efficiency combined with a low profile. Especially by highlighting their structural simplicity, RLSA antennas can be good competitors to reflector antennas if the efficiency parameters are improved. In this article, a novel approach is presented to improve the aperture efficiency of RLSAs, with a significant increase of around 10% being achieved. The core principle of this method is the use of non-uniform slot density on the RLSA antenna rings, in addition to non-uniform slot length. RLSA antennas consist of many spiral rings and slots are placed on these rings. With the help of new the concept, slot density has been increased especially on the outer spiral lines, and thus significant improvement has been achieved in both aperture efficiency and return loss. In order to verify the concept, a prototype antenna was fabricated at 26 GHz. The measured results of the prototype antenna show an excellent aperture efficiency of 45%, peak gain of 30.3 dB, and axial ratio of less than 3 dB at operating the frequency band. Also, the antenna reflection coefficient value is less than -10 dB between 24.75 GHz and 27.5 GHz and side lobe levels are below 18 dB, which indicate good pattern characteristic.https://ieeexplore.ieee.org/document/10286491/Aperture efficiencyhigh gainmicrowave linkradial line slot arrayside lobe5G |
| spellingShingle | Onur Cumurcu Hamid Torpi Alper Caliskan Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System IEEE Access Aperture efficiency high gain microwave link radial line slot array side lobe 5G |
| title | Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System |
| title_full | Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System |
| title_fullStr | Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System |
| title_full_unstemmed | Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System |
| title_short | Highly Efficient Circularly Polarized Radial Line Slot Array Antenna Using Non-Uniform Slot Density for 5G Communication System |
| title_sort | highly efficient circularly polarized radial line slot array antenna using non uniform slot density for 5g communication system |
| topic | Aperture efficiency high gain microwave link radial line slot array side lobe 5G |
| url | https://ieeexplore.ieee.org/document/10286491/ |
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