摘要
针对放置于柱形金属基座的普通圆极化微带天线,利用HFSS仿真分析了金属基座厚度对天线的驻波、增益、轴比等特性的影响,结果表明柱形基座的厚度变化不会对驻波产生显著影响,对增益会产生一定影响,但对轴比会产生比较显著的影响,通过选择合适的基座厚度可以在一定程度上改善天线的增益特性和轴比特性,同时进行了实验验证,该结果可以为实际设计微带天线提供参考依据。
For a general circular polarization micro-strip antenna on a cylindrical metal pedestal,the influences of the pedestal thickness on the antenna performances including VSWR,radiation pattern and axial ratio and so on are discussed in detail by using software HFSS The results show that it has little influence on the VSWR,a relative influence on the radiation pattern and remarkable influence on the axial ratio.They are verified by an experiment too.The work in the paper shows that better axial ratio and appropriate radiation pattern can be obtained by optimizing the pedestal thickness and it may provide some reference for designing micro-strip antenna in practice.
出处
《微波学报》
CSCD
北大核心
2010年第3期92-96,共5页
Journal of Microwaves
关键词
天线
微带
金属基座
Antenna
Micro-strip
Metal pedestal
