CPW-fed C-shaped slot antenna for broadband circularly polarized radiation

被引：7

作者：

Ding, Kang ^{[1
]}

Gao, Cheng ^{[1
]}

Yu, Tong-bin ^{[2
]}

Qu, De-xin ^{[2
]}

机构：

[1] PLA Univ Sci & Technol, Dept Engn, Natl Key Lab Elect Environm Effects & Electroopt, Nanjing 210007, Jiangsu, Peoples R China

[2] PLA Univ Sci & Technol, Dept Commun Engn, Nanjing 210007, Jiangsu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2015年 / 25卷 / 09期

关键词：

broadband antenna; circularly polarized; coplanar waveguide; slot antennas; unidirectional patterns; L GROUNDED STRIPS;

D O I：

10.1002/mmce.20909

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A novel broadband circularly polarized (CP) C-shaped slot antenna fed by a coplanar waveguide is presented. The broadband CP operation can be achieved simply using a C-shaped slot in the ground to produce orthogonal surface currents for left-hand circular polarization. Using the semicircle-shaped radiator patch, wide impedance bandwidth and broad axial-ratio (AR) bandwidth can be obtained simultaneously. The measured results show that the proposed antenna can provide a 10-dB impedance bandwidth of 105% from 2.78 to 8.92 GHz, and a 3-dB AR bandwidth of 70.4% from 2.9 to 6.05 GHz. Finally, an antenna prototype with a reflector for unidirectional pattern applications is also developed. The proposed antenna has broader impedance and CP bandwidths but with a more compact size compared with the previous designs. (c) 2015 Wiley Periodicals, Inc.

引用

页码：739 / 746

页数：8

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