A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure
In this paper, a single-fed wideband circularly polarized dielectric resonator antenna (DRA) is proposed. The antenna consists of a substrate, a cylindrical dielectric resonator, and four curved parasitic metal blocks that are rotated and placed around the dielectric resonator. The GND of the substr...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2022/6151505 |
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| author | Zizu Chen Guoliang Yu Di Wu Mingmin Zhu Yang Qiu Hao-Miao Zhou |
| author_facet | Zizu Chen Guoliang Yu Di Wu Mingmin Zhu Yang Qiu Hao-Miao Zhou |
| author_sort | Zizu Chen |
| collection | DOAJ |
| description | In this paper, a single-fed wideband circularly polarized dielectric resonator antenna (DRA) is proposed. The antenna consists of a substrate, a cylindrical dielectric resonator, and four curved parasitic metal blocks that are rotated and placed around the dielectric resonator. The GND of the substrate is etched with an inverse f-shaped slot. The orthogonal working mode of the DRA is excited by the inverse f-shaped slot coupled to the microstrip, thereby obtaining circularly polarized radiation. The impedance bandwidth and axial ratio bandwidth of the antenna are improved by optimizing the structure of the inverse f-shaped slot and the shape and size of curved parasitic metal blocks, and finally, a circularly polarized dielectric resonator antenna with significant bandwidth advantages is obtained. The antenna is simulated, fabricated, and measured. The measured results show that the proposed circularly polarized DRA has an impedance bandwidth of 58.5% (2.61–4.77 GHz) and an axial bandwidth of 55.2% (2.75–4.85 GHz) and finally achieves an effective axial bandwidth of 53.7% (2.75–4.77 GHz), the peak gain of 6.84 dBi, and average efficiency of 90.78%, with excellent overall performance. |
| format | Article |
| id | doaj-art-010d9df2406b44629cffb1109cfce1ca |
| institution | Kabale University |
| issn | 1687-5877 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-010d9df2406b44629cffb1109cfce1ca2025-02-03T06:11:50ZengWileyInternational Journal of Antennas and Propagation1687-58772022-01-01202210.1155/2022/6151505A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal StructureZizu Chen0Guoliang Yu1Di Wu2Mingmin Zhu3Yang Qiu4Hao-Miao Zhou5Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang ProvinceKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang ProvinceKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang ProvinceKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang ProvinceKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang ProvinceKey Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang ProvinceIn this paper, a single-fed wideband circularly polarized dielectric resonator antenna (DRA) is proposed. The antenna consists of a substrate, a cylindrical dielectric resonator, and four curved parasitic metal blocks that are rotated and placed around the dielectric resonator. The GND of the substrate is etched with an inverse f-shaped slot. The orthogonal working mode of the DRA is excited by the inverse f-shaped slot coupled to the microstrip, thereby obtaining circularly polarized radiation. The impedance bandwidth and axial ratio bandwidth of the antenna are improved by optimizing the structure of the inverse f-shaped slot and the shape and size of curved parasitic metal blocks, and finally, a circularly polarized dielectric resonator antenna with significant bandwidth advantages is obtained. The antenna is simulated, fabricated, and measured. The measured results show that the proposed circularly polarized DRA has an impedance bandwidth of 58.5% (2.61–4.77 GHz) and an axial bandwidth of 55.2% (2.75–4.85 GHz) and finally achieves an effective axial bandwidth of 53.7% (2.75–4.77 GHz), the peak gain of 6.84 dBi, and average efficiency of 90.78%, with excellent overall performance.http://dx.doi.org/10.1155/2022/6151505 |
| spellingShingle | Zizu Chen Guoliang Yu Di Wu Mingmin Zhu Yang Qiu Hao-Miao Zhou A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure International Journal of Antennas and Propagation |
| title | A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure |
| title_full | A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure |
| title_fullStr | A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure |
| title_full_unstemmed | A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure |
| title_short | A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure |
| title_sort | wideband circularly polarized dielectric resonator antenna using inverse f shaped slot excitation with parasitic metal structure |
| url | http://dx.doi.org/10.1155/2022/6151505 |
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