Dual Circularly Polarized Omnidirectional Antenna with Slot Array on Coaxial Cylinder

被引：4
|
作者：
Zhou, Bin [1 ]
Geng, Junping [1 ]
Li, Zhe [2 ]
Wang, Wenzhi [1 ]
Liang, Xianling [1 ]
Jin, Ronghong [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China
[2] China Acad Launch Vehicle Technol, Beijing 100076, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2015年 / 2015卷
关键词：
Cylinders (shapes) - Microwave antennas - Circular polarization - Slot antennas - Antenna arrays - Bandwidth;
D O I：
10.1155/2015/127820
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 dual circularly polarized (CP) omnidirectional antenna based on slot array in coaxial cylinder structure is presented in this paper. It is constructed by perpendicular slot pairs around and along the axis of the coaxial cylinder to realize the omnidirectional CP property, and two ports are assigned in its two sides as left hand circularly polarized (LHCP) port and right hand circularly polarized (RHCP) port, respectively. The proposed antenna achieves a bandwidth of 16.4% ranging from 5.05 to 5.95GHz with an isolation higher than 15 dB between the two CP ports, and the return loss (RL) is higher than 10 dB within the bandwidth in both of the two ports. From the measured results, the average axial ratio (AR) of the proposed antenna in omnidirectional plane is lower than 1.5 dB.
引用
收藏
页数：7
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