摘要
针对弹载环境使用的特殊要求,设计了一种安装于弹体前端、满足后向辐射要求的弹载天线。选取介质截断弹体表面的方法,采用波导口面馈电辐射,利用介质过渡改善弹体表面对波导口面辐射方向图的影响,得到了较好的后向辐射方向图以及较高的天线增益,同时实现了双频工作。针对天线实际工作状态要求,完成了天线的过载试验,并测试了过载试验前后天线的驻波及辐射方向图指标,对测试数据进行了分析,分析结果表明该天线可以承受20 000 g的过载要求。
In order to satisfy the requirement of shell-carried environment,a kind of Shell-carried antenna is designed which has a Tail Direction Pattern.The medium is used to split the shell into two parts and reduce the influence of the shell on the waveguide-anten-na radiation pattern.The double frequency characteristics are achieved at the same time.The overload impulsion test is made,and the SWR and Pattern before and after the overload impulsion experimentation are measured.The testing results show that this kind of anten-na can endure 20 000 g overload.
出处
《无线电工程》
2014年第7期66-68,共3页
Radio Engineering
基金
国家部委基金资助项目
关键词
弹载天线
过载
辐射特性
几何绕射理论
shell-carried antenna
overload
radiation characteristics
geometrical theory of diffraction
