DUAL-BAND CIRCULARLY POLARIZED ANTENNA USING COMBINED C-SHAPED AND L-SHAPED SLOTS EXCITED BY A MICROSTRIP LINE

被引:2
作者
Chang, The-Nan [1 ]
Han, Yeah-Lin [1 ]
机构
[1] Taitung Univ, Dept Elect Engn, Taipei, Taiwan
关键词
circular polarization; slot ring antenna; dual-band antenna;
D O I
10.1002/mop.25928
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
An L-shaped slot loaded inside a C-shaped slot is used to realize a dual-band antenna fed by a microstrip line. Two circularly polarized waves are generated at the 1.57 and the 2.45 GHz band. The width in the C-slot is uniform, whereas the width in the L-slot is nonuniform. In the L-slot, the width in the vertical part is made wider than that in the horizontal part. We found that the width in the vertical part of the L-slot is an efficient tuning parameter. The antenna can achieve about 6% axial ratio bandwidth at both bands. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1041-1044, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25928
引用
收藏
页码:1041 / 1044
页数:5
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