摘要
针对微带天线辐射性能提高和RCS减缩这一矛盾,寻求一种对辐射性能影响较小的微带天线RCS减缩新方案。分析了几种RCS减缩方法对微带天线辐射性能及其散射特性的影响,给出了一种综合利用微带贴片上缝隙加载、短路针加载及接地板开缝的微带天线RCS减缩新方法。实现了在天线的工作频率保持不变,增益、带宽损失很小的情况下,微带天线RCS在较宽的频带内得到较大幅度的减缩。仿真实验表明该综合方法是一种较好RCS减缩方法,对微带天线隐身技术有重要的借鉴作用。
In order to solve the conflict between RCS reduction and performance of microstrip antenna,a new method was proposed in this paper.After analyzing the effects of several RCS reduction methods on antenna＇s performance,a method integrating following technologies such as cutting slots in patch,cutting slots in ground plane and adding shorting posts was presented.This method is effective for RCS reduction through a very wide frequency band without shifting resonant frequency,and with less gain and bandwidth lost.The simulation results indicate that the method is a better way for RCS reduction and it is very useful for the stealth technique of microstrip antenna.
出处
《计算机仿真》
CSCD
2008年第9期130-133,共4页
Computer Simulation
