Simple design of broadband circularly polarized two-arm Archimedean spiral antenna

被引:1
作者
Huy Hung Tran [1 ,2 ]
Nghia Nguyen-Trong [3 ]
机构
[1] Ton Duc Thang Univ, Inst Computat Sci, Div Computat Phys, Ho Chi Minh City, Vietnam
[2] Ton Duc Thang Univ, Fac Elect & Elect Engn, Ho Chi Minh City, Vietnam
[3] Univ Queensland, Sch ITEE, St Lucia, Qld, Australia
关键词
Archimedean spiral antenna; circularly polarized; UWB; BALUN;
D O I
10.1002/mmce.21813
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
This article presents a broadband circularly polarized two-arm Archimedean spiral antenna with a novel simple feeding method. Contrary to the conventional spiral antenna excited by a vertically or horizontally balun, the presented design is directly fed by a coxial cable with a planar feeding section optimized to provide a broadband input impedance matching. An antenna prototype has been fabricated and measured to validate the concept. Measured results of reflection coefficient and axial ratio show a good performance over a frequency range from 1.0 to 3.5 GHz, equivalent to similar to 111.1%. Within this band, the antenna prototype exhibits bidirectional radiation with broadside gain values of better than 3.6 dBic.
引用
收藏
页数:6
相关论文
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