A Dual-band Broadbeam Circularly Polarized Antenna For GNSS Applications

被引：0
作者：
Zhang, Zhihong [1 ]
Xu, Kerong [1 ]
Li, Yeqiang [1 ]
Zhou, Jinwen [1 ]
Li, XiangXiang [1 ]
机构：
[1] 723 Res Inst, CSIC, 168 East Wuzhou Rd, Yangzhou 225001, Jiangsu, Peoples R China
来源：
2019 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY (ICMMT 2019) | 2019年
关键词：
Dual-band; circular polarization; broad beam-width; GNSS antenna;
D O I：
10.1109/icmmt45702.2019.8992156
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A dual-band broadbeam circularly polarized antenna for global navigation satellite system (GNSS) applications is discussed. The antenna consists of two similar dipoles and a wideband power divider. The two perpendicular dipoles and the power divider with 90 degrees phase difference could offer the circular polarization. To broaden the beam width and miniaturize the antenna, the circular dipoles are adopted. Two pair dipoles, with different size, are connected by the strip lines and capacitors. The prototype is fabricated and measured at 1268MHz in the low band and 1575MHz in the high band which agrees with the simulation results. The antenna has a wide 3dB AR beamwidth of 197.3 degrees and 101.1 degrees at 1268MHz and 1575MHz,respectively.
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页数：3
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