摘要
推导了甚低频水平低架天线电流分布的解析表达式,给出了一般情况下水平低架天线辐射效率的计算方法。在此基础上,分析了天线长度、馈电位置以及末端条件对辐射效率和方向图的影响,分析比较了平行阵和扇形阵2种水平低架天线阵的辐射效率和方向图。
An analytical formula of the current distribution for the VLF low-construct horizontal antennas（LCHA） is proposed. The equivalent radiation efficiency for the arbitrary LCHA is presented. The effect of the antenna length,feed position,and end condition and earth conductivity on the efficiency is analyzed respectively. Then the efficiency of the LCHA array is formulated and the performance of the parallel array and the fan-shaped array are analyzed and compared.
出处
《舰船科学技术》
北大核心
2008年第B11期23-27,31,共6页
Ship Science and Technology
基金
船舶工业国防科技预研基金资助项目(07J3.4.5)
