A low weight S-band quadrifilar helical antenna for satellite communication

2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI:10.1109/ANTEMURSI.2009.4805055

A. Chapari, Z. Firouzeh, R. Moini, S. Sadeghi

引用次数: 6

Abstract

In this paper, a new design of an S-band, self-phased, one-turn quadrifilar helical antenna (QHA) has been presented. The antenna has been analyzed in purposed of desired radiation pattern by numerical method. A new matching technique has been used to improve VSWR of the QHA. The eperimental results show the radiation pattern has Nadir null of about 6dB and Axial Ratio is better than 1dB. In addition, VSWR is less than 2 in frequency bandwidth of 120MHz. The anttena has low weight, size and cost which is suitable for satellite communication systems.

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一种用于卫星通信的低重量s波段四线螺旋天线

本文提出了一种新的s波段自相一匝四线螺旋天线设计方案。采用数值方法对该天线的期望辐射方向图进行了分析。采用了一种新的匹配技术来提高QHA的驻波比。实验结果表明，该辐射方向图的最低点零点约为6dB，轴比优于1dB。另外，在120MHz的频宽下，驻波比小于2。该天线具有重量小、体积小、成本低等特点，适用于卫星通信系统。

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

2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting

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