Dual-Band Operation of a Circularly Polarized Four-Arm Curl Antenna with Asymmetric Arm Length

被引：3
|
作者：
Ta, Son Xuat [1 ]
Park, Ikmo [1 ]
机构：
[1] Ajou Univ, Dept Elect & Comp Engn, 5 Woncheon Dong, Suwon 443749, South Korea
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2016年 / 2016卷
基金：
新加坡国家研究基金会;
关键词：
D O I：
10.1155/2016/3531089
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：
This paper presents dual-band operation of a single-feed composite cavity-backed four-arm curl antenna. Dual-band operation is achieved with the presence of the asymmetrical arm structure. A pair of vacant-quarter printed rings is used in the feed structure to produce a good circular polarization (CP) at both bands. The cavity-backed reflector is employed to improve the CP radiation characteristics in terms of the 3-dB axial ratio beamwidth and broadside gain. The proposed antenna is widely applicable in dual-band communication systems that have a small frequency ratio. Examples of such a system are global positioning systems.
引用
收藏
页数：10
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