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Design of double band Beidou navigation antenna with wide axial ratio beam
- Source :
- Zhongguo Jianchuan Yanjiu, Vol 19, Iss 2, Pp 245-251 (2024)
- Publication Year :
- 2024
- Publisher :
- Editorial Office of Chinese Journal of Ship Research, 2024.
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Abstract
- ObjectivesIn order to effectively broaden the beam width of the 3 dB axis ratio of a Beidou antenna, this paper proposes a slotted laminated microstrip patch antenna loaded with parasitic elements. MethodsThe Beidou dual frequency band feature is realized through a two-layer substrate structure. The bandwidth is widened by slotting. Circular polarized radiation is achieved by cutting corners at the edge of the patch. At the same time, L-shaped parasitic elements are loaded around the patch to broaden the 3 dB axial ratio beam width of the antenna.ResultsThe measured and simulated results are in good agreement. The relative bandwidths of the antenna in the Beidou B1 and B2 bands are 3% and 7.5%. The beam width of the 3 dB axis ratio can reach 180° and 176°, and the maximum gain can reach 6 dBi. In the Beidou receiver test, the number of antenna satellites can reach more than 17, and the positioning accuracy is within meters. ConclusionsThis paper proposes and validates a high-precision positioning dual band Beidou navigation antenna with wide axis ratio beam width. The results can provide references for the design of small Beidou navigation antennas.
Details
- Language :
- English, Chinese
- ISSN :
- 16733185
- Volume :
- 19
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Zhongguo Jianchuan Yanjiu
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.1bf1010eddbb4dce94b4e7d0d364a604
- Document Type :
- article
- Full Text :
- https://doi.org/10.19693/j.issn.1673-3185.03203