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应用科学学报 ›› 1999, Vol. 17 ›› Issue (4): 473-475.

• 论文 • 上一篇    下一篇

双线背射模螺旋作馈源的背射式天线

郝晋, 马福昌, 李鸿鹰, 李瑞莲   

  1. 太原理工大学
  • 收稿日期:1998-07-16 修回日期:1999-01-20 出版日期:1999-12-31 发布日期:1999-12-31
  • 基金资助:
    山西省青年学科带头人基金资助项目

A Backfire Antenna Fed by a Bifilar Backfire Mode Helix

HAO JIN, MA FUCHANG, LI HONGYING, LI RUILIAN   

  1. Department of Electronic Information Engineering, Taiyuan University of Technology, Taiyuan 030024
  • Received:1998-07-16 Revised:1999-01-20 Online:1999-12-31 Published:1999-12-31

PDF

96

被引次数

2

摘要： 提出把双线背射螺旋作为短背射天线的馈源时,可得到一种性能优良的新天线.文中给出了螺距角T=10°、12°、14°和16°时双线背射螺旋作馈源的实验结果,同时得出T=14°时天线综合性能最佳,最大增益可达19.7dB.它具有结构简单、馈电方便、遮挡小、频带宽、增益高且易于产生圆极化波等优点,性能远优于带相同接地板的螺旋天线、普通短背射天线以及单线背射螺旋作馈源的短背射天线.

关键词: 双线背射模螺旋, 馈源, 天线, 短背射天线

Abstract: A backfire antenna of good characteristics is described in this paper.It has a new feed-bifilar backfire helix.Its four situations of pitch angles T=10°,12°,14ånd 16° are measured.By comparison,the best pitch angle is 14°.The antenna has a maximum gain of 19.7dB.The new antenna has the advantages of simple structure,easy feeding and a wide frequency rang e,and circular polarized wave.The characteristics are much better than a bifilar backfire helical antenna,a short backfire antenna and a backfire antenna fed by a mono filar backfire helix.

Key words: bifilar backfire mode helix, short backfire antenna, antenna, feed