Circularly Polarized Double Layered Printed Hemispherical Helical Antenna with a Parasitic Wire for Bandwidth Enhancement

被引：1
|
作者：
Latef, T. A. [1 ]
Khamas, S. K. [2 ]
Reza, Ahmed Wasif [1 ]
机构：
[1] Univ Malaya, Dept Elect Engn, Fac Engn, Kuala Lumpur 50603, Malaysia
[2] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S1 3JD, S Yorkshire, England
来源：
FREQUENZ | 2014年 / 68卷 / 7-8期
关键词：
helical antennas; spherical antennas; conformal antennas; moment method; circular polarization;
D O I：
10.1515/freq-2013-0149
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 helical antenna that is printed on a layered dielectric hemisphere has been studied when a parasitic helical wire is incorporated in the structure. Experimental and theoretical results demonstrate that the 3 dB axial ratio (AR) bandwidth can be enhanced by approximately 100% for optimized length and position of the parasitic wire. The analysis has been implemented using the method of moments (MoM), and good agreement has been achieved between computations and measurements.
引用
收藏
页码：297 / 303
页数：7
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