A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth
The antenna presented in this study is a compact wideband monopole with wideband circular polarization that can be used across the whole antenna bandwidth. A rectangular C-shaped patch is partially covered by a ground plane in the proposed planar monopole antenna. Inserting a rectangular stub to the...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9849652/ |
| _version_ | 1811309142705438720 |
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| author | Falih M. Alnahwi Yasir I. A. Al-Yasir Nazar T. Ali Ibrahim Gharbia Chan Hwang See Raed A. Abd-Alhameed |
| author_facet | Falih M. Alnahwi Yasir I. A. Al-Yasir Nazar T. Ali Ibrahim Gharbia Chan Hwang See Raed A. Abd-Alhameed |
| author_sort | Falih M. Alnahwi |
| collection | DOAJ |
| description | The antenna presented in this study is a compact wideband monopole with wideband circular polarization that can be used across the whole antenna bandwidth. A rectangular C-shaped patch is partially covered by a ground plane in the proposed planar monopole antenna. Inserting a rectangular stub to the ground plane, etching a slit at the antenna patch, and adding a semicircular stub at the top of the antenna feed line increase the antenna impedance bandwidth (BW) and axial ratio bandwidth (ARBW). An FR4 substrate with overall dimensions of 25 mm <inline-formula> <tex-math notation="LaTeX">$\times25$ </tex-math></inline-formula> mm <inline-formula> <tex-math notation="LaTeX">$\times1.6$ </tex-math></inline-formula> mm is used to create the antenna. The antenna’s observed impedance BW is 70% (4.55 GHz in the 4.3-8.85 GHz band), while the measured broadside ARBW is improved to a value of 82.2 percent (5.3 GHz along the range 3.8-9.1 GHz). The impedance BW is perfectly covered by the ARBW; hence the antenna can be considered circularly polarized throughout its operational spectrum. Within the antenna BW, the measured gain is greater than 1.5 dB. |
| first_indexed | 2024-04-13T09:36:51Z |
| format | Article |
| id | doaj.art-b0def85f4f2e4eb2aa7b96e460f15dc6 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-13T09:36:51Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-b0def85f4f2e4eb2aa7b96e460f15dc62022-12-22T02:52:05ZengIEEEIEEE Access2169-35362022-01-0110818288183510.1109/ACCESS.2022.31966109849652A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna BandwidthFalih M. Alnahwi0https://orcid.org/0000-0002-2523-7165Yasir I. A. Al-Yasir1https://orcid.org/0000-0002-7859-3550Nazar T. Ali2https://orcid.org/0000-0003-2991-9451Ibrahim Gharbia3Chan Hwang See4https://orcid.org/0000-0001-8439-7321Raed A. Abd-Alhameed5https://orcid.org/0000-0003-2972-9965Department of Electrical Engineering, College of Engineering, University of Basrah, Basrah, IraqFaculty of Engineering and Informatics, University of Bradford, Bradford, U.K.Faculty of Engineering and Informatics, University of Bradford, Bradford, U.K.Faculty of Engineering and Informatics, University of Bradford, Bradford, U.K.School of Engineering and the Built Environment, Edinburgh Napier University, Edinburgh, U.K.Faculty of Engineering and Informatics, University of Bradford, Bradford, U.K.The antenna presented in this study is a compact wideband monopole with wideband circular polarization that can be used across the whole antenna bandwidth. A rectangular C-shaped patch is partially covered by a ground plane in the proposed planar monopole antenna. Inserting a rectangular stub to the ground plane, etching a slit at the antenna patch, and adding a semicircular stub at the top of the antenna feed line increase the antenna impedance bandwidth (BW) and axial ratio bandwidth (ARBW). An FR4 substrate with overall dimensions of 25 mm <inline-formula> <tex-math notation="LaTeX">$\times25$ </tex-math></inline-formula> mm <inline-formula> <tex-math notation="LaTeX">$\times1.6$ </tex-math></inline-formula> mm is used to create the antenna. The antenna’s observed impedance BW is 70% (4.55 GHz in the 4.3-8.85 GHz band), while the measured broadside ARBW is improved to a value of 82.2 percent (5.3 GHz along the range 3.8-9.1 GHz). The impedance BW is perfectly covered by the ARBW; hence the antenna can be considered circularly polarized throughout its operational spectrum. Within the antenna BW, the measured gain is greater than 1.5 dB.https://ieeexplore.ieee.org/document/9849652/Axial ratiocircular polarizationplanar antennawideband |
| spellingShingle | Falih M. Alnahwi Yasir I. A. Al-Yasir Nazar T. Ali Ibrahim Gharbia Chan Hwang See Raed A. Abd-Alhameed A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth IEEE Access Axial ratio circular polarization planar antenna wideband |
| title | A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth |
| title_full | A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth |
| title_fullStr | A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth |
| title_full_unstemmed | A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth |
| title_short | A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth |
| title_sort | compact wideband circularly polarized planar monopole antenna with axial ratio bandwidth entirely encompassing the antenna bandwidth |
| topic | Axial ratio circular polarization planar antenna wideband |
| url | https://ieeexplore.ieee.org/document/9849652/ |
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