文章基本信息

标题：A Low Frequency Helical Antenna for Sub Surface Communication
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作者：B. Chatterjee ; D. Bhattacharya
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2014
卷号：17
期号：3
页码：125-134
DOI：10.14429/dsj.17.7382
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：The purpose of this paper is to develop a simple antenna structure of limited dimension suitable for low frequency and under ground communication. The closed wound helical antenna of length small compared to wavelength is found to be a better radiator compared to a linear antenna of same length. Field expressions for both dissipative and non dissipative media are calculated and tabulated. A chart is provided to study the reflection effect and a curve is plotted showing the relative strength of helical antenna with respect to the linear antenna. The assumption of uniform earth's characteristic is made through out the analysis.
关键词：Helical Antenna;Dissipative Media