A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna
In this paper, a compact circularly polarized (CP) antenna with omnidirectional radiation is presented, which has a central symmetric configuration (CSC) and planar structure. It consists of three identical end-fire CP antenna units. Based on the combination of two parallel complementary current sou...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2019/4303417 |
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| author | Zhe Wu Lin Yang Jiaji Wu Zhensen Wu Xi Li Yu Yun |
| author_facet | Zhe Wu Lin Yang Jiaji Wu Zhensen Wu Xi Li Yu Yun |
| author_sort | Zhe Wu |
| collection | DOAJ |
| description | In this paper, a compact circularly polarized (CP) antenna with omnidirectional radiation is presented, which has a central symmetric configuration (CSC) and planar structure. It consists of three identical end-fire CP antenna units. Based on the combination of two parallel complementary current sources, each unit cell can be realized by a scalloped cavity and a couple of curved strip lines. Due to a single-layer circular structure with low profile, this configuration can be excited by a coaxial probe in the centre of the whole frame simultaneously. In addition, this prototype was miniaturized with a diameter of 32 mm (0.266λr, the wavelength of the centre frequency in free space is represented by λr) and a height of 1.5 mm (0.012λr). Centre resonance frequency 2.492 GHz is selected, resulting in an omnidirectional radiation and impedance bandwidth (VSWR ≤ 2) of 25 MHz (2481–2506 MHz). |
| format | Article |
| id | doaj-art-49e277cd3c8b4b93895e0b4db35ef10c |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-49e277cd3c8b4b93895e0b4db35ef10c2025-02-03T01:07:20ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772019-01-01201910.1155/2019/43034174303417A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized AntennaZhe Wu0Lin Yang1Jiaji Wu2Zhensen Wu3Xi Li4Yu Yun5The School of Electronic Engineering, Xidian University, Xi’an 710071, ChinaNational Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, ChinaThe School of Electronic Engineering, Xidian University, Xi’an 710071, ChinaThe School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710071, ChinaNational Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, ChinaThe School of Electronic Engineering, Xidian University, Xi’an 710071, ChinaIn this paper, a compact circularly polarized (CP) antenna with omnidirectional radiation is presented, which has a central symmetric configuration (CSC) and planar structure. It consists of three identical end-fire CP antenna units. Based on the combination of two parallel complementary current sources, each unit cell can be realized by a scalloped cavity and a couple of curved strip lines. Due to a single-layer circular structure with low profile, this configuration can be excited by a coaxial probe in the centre of the whole frame simultaneously. In addition, this prototype was miniaturized with a diameter of 32 mm (0.266λr, the wavelength of the centre frequency in free space is represented by λr) and a height of 1.5 mm (0.012λr). Centre resonance frequency 2.492 GHz is selected, resulting in an omnidirectional radiation and impedance bandwidth (VSWR ≤ 2) of 25 MHz (2481–2506 MHz).http://dx.doi.org/10.1155/2019/4303417 |
| spellingShingle | Zhe Wu Lin Yang Jiaji Wu Zhensen Wu Xi Li Yu Yun A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna International Journal of Antennas and Propagation |
| title | A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna |
| title_full | A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna |
| title_fullStr | A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna |
| title_full_unstemmed | A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna |
| title_short | A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna |
| title_sort | central symmetrical and low profile omnidirectional circularly polarized antenna |
| url | http://dx.doi.org/10.1155/2019/4303417 |
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