J4 ›› 2009, Vol. 36 ›› Issue (3): 524-526.

• 研究论文 • 上一篇    下一篇

一种宽带圆极化介质半球面螺旋天线

张厚1;龚书喜2;夏冬玉3   

  1. (1. 空军工程大学 导弹学院,陕西 三原  713800;
    2. 西安电子科技大学 天线与电磁散射研究所,陕西 西安  710071;
    3. 北京2866信箱,北京 100085)
  • 收稿日期:2008-10-12 修回日期:2008-11-06 出版日期:2009-06-20 发布日期:2009-07-04
  • 通讯作者: 张厚

Novel broadband circular-polarized dielectric hemispherical helical antenna

ZHANG Hou1;GONG Shu-xi2;XIA Dong-yu3   

  1. (1. Missile Inst. of Air Force Eng. Univ., Sanyuan  713800, China;
    2. Research Inst. of Antenna and EM Scatterng, Xidian Univ., Xi'an  710071, China;
    3. P.O.Box 2866, Beijing  100085, China)
  • Received:2008-10-12 Revised:2008-11-06 Online:2009-06-20 Published:2009-07-04
  • Contact: ZHANG Hou

摘要:

研制了一种新型双臂等角半球面介质螺旋天线,应用基于曲线基函数的矩量法对其辐射特性进行了分析,给出了天线的驻波、极化及方向图等随频率变化的曲线.计算与实测结果表明,在800 MHz~2 600 MHz的频带内,驻波比基本小于2,轴比小于3 dB,相对带宽可达106%.

关键词: 宽带, 矩量法, 圆极化, 螺旋天线, 介质

Abstract:

A novel bifilar constant-angle dielectric hemispherical helical antenna is developed. Its radiation properties are analyzed by the moment method with the curved basic and testing function, the curves of VSWR, polarization and pattern vs. frequency are presented, respectively. The calculated and measured results show that within the range of 800 MHz~2 600 MHz VSWR is less than 2, that AR is less than 3 dB, and that the relative bandwidth reaches 106%.

Key words: broadband, MOM, circular-polarization, helical antenna, dielectric

中图分类号: 

  • TN823