Miniaturised design of coplanar waveguide-fed broadband circularly polarised slot antenna

被引：11
作者：
Luo, Kang [1 ]
Chen, Bin [1 ]
Yi, Yun [1 ]
Wang, Yigang [1 ]
机构：
[1] PLA Univ Sci & Technol, Natl Key Lab Electromagnet Environm Effects & Ele, Nanjing 210007, Jiangsu, Peoples R China
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2015年 / 9卷 / 11期
关键词：
L GROUNDED STRIPS; UWB APPLICATIONS;
D O I：
10.1049/iet-map.2014.0873
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 miniaturised design of broadband circularly polarised (CP) antenna using a coplanar waveguide feed is presented. To realise CP characteristic, a pair of inverted-L strips around two opposite corners of the slot is protruded. By properly folding the modified ground plane, the 3-dB axial-ratio (AR) band is shifted to around a lower-frequency location, whereas the input impedance band is shifted downwards through the Y-shaped loading strip. The overall size of the antenna is about 0.34 lambda(0) x 0.34 lambda(0) x 0.009 lambda(0) at 1.7 GHz. Measured results show that the proposed design can deliver 3-dB AR bandwidth of 36.8% (1.55-2.25 GHz) and 10 dB impedance bandwidth of 63.2% (1.17-2.25 GHz).
引用
收藏
页码：1200 / 1204
页数：5
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