A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth
A broadband single-feed circularly polarized patch antenna with wide beamwidth is presented. The patch is coupled to four asymmetric cross slots via a microstrip ring with eight matching segments underneath the ground plane, traversing through the arms of the cross slots in a serial manner. And a co...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2015/740274 |
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| _version_ | 1832552468935868416 |
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| author | Changhong Zhang Junping Geng Bin Zhou Xianling Liang Ronghong Jin |
| author_facet | Changhong Zhang Junping Geng Bin Zhou Xianling Liang Ronghong Jin |
| author_sort | Changhong Zhang |
| collection | DOAJ |
| description | A broadband single-feed circularly polarized patch antenna with wide beamwidth is presented. The patch is coupled to four asymmetric cross slots via a microstrip ring with eight matching segments underneath the ground plane, traversing through the arms of the cross slots in a serial manner. And a coupling slice instead of a resistive load is used as matching load of the microstrip ring for higher gain. Furthermore, a metal side wall surrounding the antenna is used to improve the isolation between adjacent elements in an array. Through optimizing the four asymmetric cross slots and eight matching segments, excellent performances are achieved by the proposed antenna, especially for the broadband and wide beamwidth. Measurement results show that the antenna has −10 dB reflection coefficient bandwidth of 29.7%, 3-dB axial-ratio bandwidth of 21.6%, and beamwidth of more than 90°. It can be considered as a good candidate for the element of arrays. |
| format | Article |
| id | doaj-art-f2783960d9ed47d8b86b680f3efd23b2 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-f2783960d9ed47d8b86b680f3efd23b22025-02-03T05:58:37ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/740274740274A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide BeamwidthChanghong Zhang0Junping Geng1Bin Zhou2Xianling Liang3Ronghong Jin4Department of Electronic Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, ChinaDepartment of Electronic Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, ChinaDepartment of Electronic Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, ChinaDepartment of Electronic Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, ChinaDepartment of Electronic Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, ChinaA broadband single-feed circularly polarized patch antenna with wide beamwidth is presented. The patch is coupled to four asymmetric cross slots via a microstrip ring with eight matching segments underneath the ground plane, traversing through the arms of the cross slots in a serial manner. And a coupling slice instead of a resistive load is used as matching load of the microstrip ring for higher gain. Furthermore, a metal side wall surrounding the antenna is used to improve the isolation between adjacent elements in an array. Through optimizing the four asymmetric cross slots and eight matching segments, excellent performances are achieved by the proposed antenna, especially for the broadband and wide beamwidth. Measurement results show that the antenna has −10 dB reflection coefficient bandwidth of 29.7%, 3-dB axial-ratio bandwidth of 21.6%, and beamwidth of more than 90°. It can be considered as a good candidate for the element of arrays.http://dx.doi.org/10.1155/2015/740274 |
| spellingShingle | Changhong Zhang Junping Geng Bin Zhou Xianling Liang Ronghong Jin A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth International Journal of Antennas and Propagation |
| title | A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth |
| title_full | A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth |
| title_fullStr | A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth |
| title_full_unstemmed | A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth |
| title_short | A Broadband Single-Feed Circularly Polarized Patch Antenna with Wide Beamwidth |
| title_sort | broadband single feed circularly polarized patch antenna with wide beamwidth |
| url | http://dx.doi.org/10.1155/2015/740274 |
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