A Miniaturized Circularly Polarized Microstrip Antenna for GPS Applications

被引：0
|
作者：
Daneshmandian, F. [1 ]
Dehkhoda, P. [2 ]
Tavakoli, A. [1 ]
机构：
[1] Amirkabir Univ Technol, Dept Elect Engn, Tehran 15914, Iran
[2] Amirkabir Univ Technol, Inst Commun Technol & Appl Electromagnet, Tehran 15914, Iran
来源：
2014 22ND IRANIAN CONFERENCE ON ELECTRICAL ENGINEERING (ICEE) | 2014年
关键词：
component; Microstrip antenna; GPS applications; circular polarization; axial ratio; fractal antenna;
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 microstrip antenna is presented for global positioning system (GPS) applications at 1.575 GHz. The Crown Square fractal shape is utilized for microstrip antenna design. This antenna is designed on two different substrates and the effect of these substrates on the performance of microstrip antenna is studied. Simulation results of both cases show very good circular polarization characteristics with a 3-dB axial ratio bandwidth of about 0.51% and 0.38% and very wide beam-width of about 160 degrees and 115 degrees for a 3-dB axial ratio. Also voltage standing wave ratio (VSWR) bandwidth of about 2.2% and 1.4% are achieved in both cases. To validate the results, a prototype model of fractal antenna on available substrate is fabricated and its radiation patterns and VSWR are measured. A good agreement between the results is observed.
引用
收藏
页码：1653 / 1656
页数：4
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