甚低频伞形天线地网性能研究  

Ground Net Characteristics of VLF Umbrella Antenna

作　　者：张静[1] 李云红[1] 

机构地区：[1]海军工程大学电子工程学院通信工程系,武汉430033

出　　处：《舰船电子工程》2016年第9期45-47,69,共4页Ship Electronic Engineering

摘　　要：论文通过运用电磁场仿真分析软件FEKO对不同形式地网的甚低频发信天线进行仿真,研究地网形式对损耗电阻的影响并进行分析。基于建立的不同地网形式的天线模型,进一步计算出天线效率,根据计算数据对地网进行分组对比,从中筛选出性能优越的地网形式。对伞形天线而言,辐射状地网的天线效率最高在80%以上,效果明显;而矩形地网则效果不佳;如果对辐射状地网加回流环,效果不是很明显。In this paper, different forms of ground net of VLF transmitting antennas are simulated by electromagnetic software FEKO to study and analyze the influence of various ground net on loss resistance. The efficiency of the antennas are calculated based on various antenna models established. The ground nets are divided into groups and contrasted according to the data obtained, then the best one can be found. For VLF umbrella antenna, the efficiency of the radial pattern of ground net is more than eighty percent, it is efficient. However, rectangular ground net is not so good. Compared to the radial pattern of ground net, the efficiency of the radial pattern of ground net with return rings is not higher.

关 键 词：甚低频 伞形天线 FEKO仿真 地网 

分 类 号：TN820[电子电信—信息与通信工程]