A Compact Dual-Band Circularly Polarized Antenna With Wide Axial-Ratio Beamwidth for Vehicle GPS Satellite Navigation Application
| Autor: | Tao Yuan, Jia-Jun Liang, Han Chongzhi, Xiao Zhang, Fan Molin, Zeng-Pei Zhong, Wei Xu, Guan-Long Huang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Patch antenna Computer Networks and Communications business.industry Axial ratio Aerospace Engineering 020302 automobile design & engineering 02 engineering and technology GPS signals Beamwidth Optics 0203 mechanical engineering Automotive Engineering Global Positioning System Satellite navigation Multi-band device Electrical and Electronic Engineering Antenna (radio) business |
| Zdroj: | IEEE Transactions on Vehicular Technology. 68:8683-8692 |
| ISSN: | 1939-9359 0018-9545 |
| DOI: | 10.1109/tvt.2019.2920520 |
| Popis: | A compact circularly polarized patch antenna with wide axial-ratio beamwidth (ARBW) operating at dual bands compatible for GPS satellite navigation application is proposed in this paper. The antenna consists of two stacked patches, which account for GPS L 1 band (1575 ± 2 MHz) and L 2 band (1228 ± 2 MHz). To realize significant size miniaturization, four pillars are introduced and strongly coupled to the lower patch. To adjust the beamwidth response of the far-field components, the antenna is backed by a modified metallic cavity, which in turn widen the 3-dB ARBW at two operating bands effectively Finally, the proposed design with excellent performance is realized in a size of 0.368 λ 0 (diameter) and 0.105 λ 0 (height). Simulated and measured results show that the ARBWs at L 1 and L 2 bands are as wide as 173° and 133°, respectively. For practical application, its satisfactory GPS signal receiving capability is also verified by outdoor positioning test. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|