Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization
In this paper, a single-arm Archimedean spiral (SAAS) antenna with broadband circular polarization is investigated. Unlike traditional single-arm Archimedean spiral antenna, the antenna arm consists of a hybrid meandered strip line and a smooth arc strip line. Especially at low frequencies, the mean...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2021/6623468 |
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| author | Qingyuan Fang Mengzhe Jin Weidong Liu |
| author_facet | Qingyuan Fang Mengzhe Jin Weidong Liu |
| author_sort | Qingyuan Fang |
| collection | DOAJ |
| description | In this paper, a single-arm Archimedean spiral (SAAS) antenna with broadband circular polarization is investigated. Unlike traditional single-arm Archimedean spiral antenna, the antenna arm consists of a hybrid meandered strip line and a smooth arc strip line. Especially at low frequencies, the meandered strip line significantly improves the circular polarization performance by extending the antenna surface current path. The effects of the meandered strip line on the radiation pattern and axial ratio (AR) are studied in detail. To obtain unidirectional radiation, a metallic cavity is added below the SAAS antenna. The measurement results show that the voltage standing wave ratio (VSWR) is less than 2 from 0.88 GHz to 8.82 GHz, which indicates a wide impedance bandwidth of 1 : 10 is realized. A wide AR bandwidth of 1 : 5 is available, that the measured AR is less than 3 dB from 1.6 GHz to 8 GHz. |
| format | Article |
| id | doaj-art-0b6ffd26a67141fab92430ed32573157 |
| institution | OA Journals |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-0b6ffd26a67141fab92430ed325731572025-08-20T02:03:27ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772021-01-01202110.1155/2021/66234686623468Single-Arm Archimedean Spiral Antenna with Broadband Circular PolarizationQingyuan Fang0Mengzhe Jin1Weidong Liu2Hebei Key Laboratory for Electromagnetic Environmental Effects and Information Processing, Shijiazhuang Tiedao University, Shijiazhuang 050003, ChinaHebei Key Laboratory for Electromagnetic Environmental Effects and Information Processing, Shijiazhuang Tiedao University, Shijiazhuang 050003, ChinaHebei Key Laboratory for Electromagnetic Environmental Effects and Information Processing, Shijiazhuang Tiedao University, Shijiazhuang 050003, ChinaIn this paper, a single-arm Archimedean spiral (SAAS) antenna with broadband circular polarization is investigated. Unlike traditional single-arm Archimedean spiral antenna, the antenna arm consists of a hybrid meandered strip line and a smooth arc strip line. Especially at low frequencies, the meandered strip line significantly improves the circular polarization performance by extending the antenna surface current path. The effects of the meandered strip line on the radiation pattern and axial ratio (AR) are studied in detail. To obtain unidirectional radiation, a metallic cavity is added below the SAAS antenna. The measurement results show that the voltage standing wave ratio (VSWR) is less than 2 from 0.88 GHz to 8.82 GHz, which indicates a wide impedance bandwidth of 1 : 10 is realized. A wide AR bandwidth of 1 : 5 is available, that the measured AR is less than 3 dB from 1.6 GHz to 8 GHz.http://dx.doi.org/10.1155/2021/6623468 |
| spellingShingle | Qingyuan Fang Mengzhe Jin Weidong Liu Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization International Journal of Antennas and Propagation |
| title | Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization |
| title_full | Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization |
| title_fullStr | Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization |
| title_full_unstemmed | Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization |
| title_short | Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization |
| title_sort | single arm archimedean spiral antenna with broadband circular polarization |
| url | http://dx.doi.org/10.1155/2021/6623468 |
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