Broad Beamwidth Circularly Polarized Microstrip Antenna for CNSS Band Application

被引：0
|
作者：
Chen, Jingjing [1 ]
Wang, Min [1 ]
Hu, Lei [1 ]
Wu, Wen [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Jiangsu, Peoples R China
来源：
2015 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), VOLS 1-3 | 2015年
关键词：
GPS APPLICATIONS; WIDE-BEAM;
D O I：
暂无
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 novel circularly polarized (CP) microstrip antenna with broad beamwidth is proposed for compass navigation satellite system (CNSS) application. The multi-layer structure is adopted which consists of two circular substrate layers and an air layer. A circular patch antenna with two stubs is laid on the lower substrate to achieve circularly polarized radiation, which is fed through a coaxial probe. Two parasitic rings are introduced to broaden the half-power beamwidth and AR beamwith, which are laid on the upper and lower layer, respectively. With the two parasitic rings, the proposed antenna exhibits a 3dB beamwidth more than 160 degrees, and a 3dB axial-ratio beamwidth more than 180 degrees.
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页数：3
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