Printed circularly polarised antenna with ultra-wide axial-ratio bandwidth

被引：22
作者：
Bao, X. L. [1 ]
Ammann, M. J. [1 ]
机构：
[1] Dublin Inst Technol, Sch Elect & Commun Engn, Antenna & High Frequency Res Ctr, Dublin 8, Ireland
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2011年 / 5卷 / 09期
基金：
爱尔兰科学基金会;
关键词：
BROAD-BAND; PATCH ANTENNA; MONOPOLE ANTENNAS; DESIGN;
D O I：
10.1049/iet-map.2010.0493
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 circularly polarised printed dipole-like antenna employing asymmetrical arms and an orthogonal slit in the ground plane is presented. It is fed by a stepped microstrip line which connects to the shorter arm. By utilising surface currents on the asymmetrical arms and the orthogonal feedline structure, circular polarisation is realised. Experimental and numerical data are in agreement and the measured results show a fractional impedance bandwidth of 41.3% (1.77-2.69 GHz) and a wide axial-ratio bandwidth of 38.4% (1.81-2.67 GHz).
引用
收藏
页码：1089 / 1096
页数：8
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