摘要
文中研究设计了一种具有良好低仰角增益的宽波束圆极化金属线四臂螺旋天线,该天线在上半空间的增益分布十分均匀,10°仰角的增益相对峰值增益下降不超过3dB。为了改善天线的轴比性能,提出了一种微带四臂螺旋天线方案,实测结果表明,这种天线的轴比性能得到了较大的改善。
A quadrifilar helix antenna made of copper wires is studied in this paper. The radiation property of the antenna is very good. In order to enhance the property of axial ratio, a new quadrifilar helix antenna made of microstrip lines is given. The measured results indicate that the new antenna has a good performance of axial ratio and radiation pattern.
出处
《弹箭与制导学报》
CSCD
北大核心
2009年第3期245-246,250,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
四臂螺旋天线
圆极化
轴比
quadrifilar helix antenna
eireular-polarization
axial ratio
