A Design of Dual-Frequency Dual-Sense Circularly-Polarized Slot Antenna

被引：46
|
作者：
Shao, Yu [1 ,2 ]
Chen, Zhangyou [1 ]
机构：
[1] Wuhan Univ, Elect Informat Sch, Wuhan 430072, Peoples R China
[2] Auburn Univ, Auburn, AL 36830 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 11期
关键词：
Annular slot; cross slot; dual-frequency; dual-sense circular polarization; MICROSTRIP ANTENNAS; FEED; LINE;
D O I：
10.1109/TAP.2012.2208444
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 single-feed dual-frequency dual-sense circularly-polarized (CP) printed slot antenna etched on a single substrate is proposed. This antenna is composed of an annular slot and a cross slot, which produce two different frequency bands. The lower band and the upper band are controlled by the annular slot and the cross slot respectively. By introducing asymmetry on both annular slot and cross slot, CP radiation at the two frequencies can be obtained. The method of impedance matching has been discussed in detail. The key parameters of the design are investigated to show how to obtain dual-frequency and dual circular polarization. Two antenna prototypes are fabricated and measured, experimental results show that good CP radiation performances are obtained at both frequencies.
引用
收藏
页码：4992 / 4997
页数：6
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