Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth
In this article, a low profile circularly polarized (CP) antenna with wide 3-dB axial ratio beamwidth (ARBW) is presented. Two-pair of parallel slots are etched on a circular patch and manifested as magnetic dipoles (MDs). These narrow slots are arranged symmetrically about the axes, and one pair is...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9288787/ |
| _version_ | 1811210488927748096 |
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| author | Mrityunjoy Kumar Ray Kaushik Mandal Nasimuddin Nasimuddin Ali Lalbakhsh Raad Raad Faisel Tubbal |
| author_facet | Mrityunjoy Kumar Ray Kaushik Mandal Nasimuddin Nasimuddin Ali Lalbakhsh Raad Raad Faisel Tubbal |
| author_sort | Mrityunjoy Kumar Ray |
| collection | DOAJ |
| description | In this article, a low profile circularly polarized (CP) antenna with wide 3-dB axial ratio beamwidth (ARBW) is presented. Two-pair of parallel slots are etched on a circular patch and manifested as magnetic dipoles (MDs). These narrow slots are arranged symmetrically about the axes, and one pair is orthogonal to another pair of slots. The philosophy of CP radiation across a wide angular range strongly depends on the spacing between the paired-dipoles, for example spacing of <inline-formula> <tex-math notation="LaTeX">$0.22\lambda _{0}$ </tex-math></inline-formula>, two-orthogonal far-field radiated components become equal across a wide-angle. Moreover, this particular spacing between the paired-dipoles provides a symmetrical electric field distribution along the periphery of the patch, which ensures the broadside LHCP radiation with wide 3-dB ARBW of 228° and 214° at the plane of <inline-formula> <tex-math notation="LaTeX">$\varphi = 0^{\circ }$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$\varphi = 90^{\circ }$ </tex-math></inline-formula>, respectively. The measured results from the fabricated prototype exhibit good agreement with the simulated results. The antenna has impedance bandwidth (IBW) and CP bandwidth (CPBW) of 2.6% (64 MHz), and 0.9% (22 MHz), respectively. The broadside radiation holds antenna gain higher than 5 dBic across the entire CPBW. |
| first_indexed | 2024-04-12T04:56:35Z |
| format | Article |
| id | doaj.art-18bf5e3d59a649189b8fa40d633a1076 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-12T04:56:35Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-18bf5e3d59a649189b8fa40d633a10762022-12-22T03:47:07ZengIEEEIEEE Access2169-35362020-01-01822331622332410.1109/ACCESS.2020.30434069288787Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio BeamwidthMrityunjoy Kumar Ray0https://orcid.org/0000-0002-3998-4508Kaushik Mandal1https://orcid.org/0000-0003-4909-088XNasimuddin Nasimuddin2https://orcid.org/0000-0003-2801-209XAli Lalbakhsh3https://orcid.org/0000-0003-2033-0333Raad Raad4https://orcid.org/0000-0002-2347-4837Faisel Tubbal5https://orcid.org/0000-0002-7561-9903Institute of Radio Physics and Electronics, University of Calcutta, Kolkata, IndiaInstitute of Radio Physics and Electronics, University of Calcutta, Kolkata, IndiaInstitute for Infocomm Research, A*STAR, SingaporeSchool of Engineering, Macquarie University, Sydney, NSW, AustraliaSchool of Electrical, Computer and Telecommunication Engineering, University of Wollongong, Keiraville, NSW, AustraliaSchool of Electrical, Computer and Telecommunication Engineering, University of Wollongong, Keiraville, NSW, AustraliaIn this article, a low profile circularly polarized (CP) antenna with wide 3-dB axial ratio beamwidth (ARBW) is presented. Two-pair of parallel slots are etched on a circular patch and manifested as magnetic dipoles (MDs). These narrow slots are arranged symmetrically about the axes, and one pair is orthogonal to another pair of slots. The philosophy of CP radiation across a wide angular range strongly depends on the spacing between the paired-dipoles, for example spacing of <inline-formula> <tex-math notation="LaTeX">$0.22\lambda _{0}$ </tex-math></inline-formula>, two-orthogonal far-field radiated components become equal across a wide-angle. Moreover, this particular spacing between the paired-dipoles provides a symmetrical electric field distribution along the periphery of the patch, which ensures the broadside LHCP radiation with wide 3-dB ARBW of 228° and 214° at the plane of <inline-formula> <tex-math notation="LaTeX">$\varphi = 0^{\circ }$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$\varphi = 90^{\circ }$ </tex-math></inline-formula>, respectively. The measured results from the fabricated prototype exhibit good agreement with the simulated results. The antenna has impedance bandwidth (IBW) and CP bandwidth (CPBW) of 2.6% (64 MHz), and 0.9% (22 MHz), respectively. The broadside radiation holds antenna gain higher than 5 dBic across the entire CPBW.https://ieeexplore.ieee.org/document/9288787/Axial ratio beamwidthcircular polarizationelectric fieldmagnetic dipoleslotted-patch |
| spellingShingle | Mrityunjoy Kumar Ray Kaushik Mandal Nasimuddin Nasimuddin Ali Lalbakhsh Raad Raad Faisel Tubbal Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth IEEE Access Axial ratio beamwidth circular polarization electric field magnetic dipole slotted-patch |
| title | Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth |
| title_full | Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth |
| title_fullStr | Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth |
| title_full_unstemmed | Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth |
| title_short | Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth |
| title_sort | two pair slots inserted cp patch antenna for wide axial ratio beamwidth |
| topic | Axial ratio beamwidth circular polarization electric field magnetic dipole slotted-patch |
| url | https://ieeexplore.ieee.org/document/9288787/ |
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