摘要
论文通过运用电磁场仿真分析软件FEKO对甚低频伞形发信天线进行仿真,并对天线进行了一些电气特性的计算与分析。通过对伞形天线的顶臂向下偏折角度进行改变以创建新的模型,从而找出天线电气性能的变化规律。对仿真数据进行分析对比后发现:理想地网情况下,当甚低频伞形天线顶臂向下偏折的角度不断增加时,相当于减小了天线的有效长度,故天线的辐射电阻减小,输入电阻减小,天线系统效率也减小。
In this paper,the electrical characteristics of VLF umbrella antenna is analyzed and calculated by using the electromagnetic simulation software FEKO.Some new models are created by changing the angle of deflection of the top arms of VLF umbrella antenna,then the regulation of the electrical performance of the antenna is found.The simulated data under different models and conditions are analyzed and compared.The results show that in the uniform grid condition,when the angle of deflection of the top arms of the umbrella antenna is increased,the effective height of the antenna is equivalent to be reduced,the radiation resistance of the antenna decreased,the input resistance of the antenna decreases and the efficiency of antenna system also decreases.
出处
《舰船电子工程》
2016年第6期59-61,88,共4页
Ship Electronic Engineering
关键词
甚低频
伞形天线
FEKO仿真
天线电气性能
very low frequency
umbrella antenna
FEKO simulation
electrical performance of antenna
