Small spiral-loaded antenna

1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI:10.1109/ANTEM.1998.7861744

H. Nakano, H. Mimaki, M. Sugama, J. Yamauchi, K. Hirose

引用次数: 2

Abstract

Recently, we have analyzed a spirally-wound antenna [1][2] proposed by Fenwick using the method of moments. The analysis shows that the. input impedance is very low (less than 4 ohms). It is also shown that the frequency bandwidth is very narrow (less than 0.2% for a criterion of VSWR = 2 to an input resistance at resonance). In this paper, we realize higher input resistance over a wider frequency band than the Fenwick's antenna. For this, a relatively small spiral-loaded antenna, proposed in Fig. 1, is analyzed. The radiation characteristics are presented and discussed.

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小型螺旋加载天线

最近，我们用矩量法分析了Fenwick提出的一种螺旋缠绕天线[1][2]。分析表明。输入阻抗非常低(小于4欧姆)。还表明，频率带宽非常窄(对于谐振时的VSWR = 2的输入电阻的判据小于0.2%)。在本文中，我们实现了比Fenwick天线在更宽的频带上更高的输入电阻。为此，本文对图1中提出的一种相对较小的螺旋加载天线进行了分析。给出并讨论了其辐射特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

1998 Symposium on Antenna Technology and Applied Electromagnetics

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