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本文提出了一种分析任意多点馈电和加载共轴天线阵的快速工程计算方法,即利用网络理论,把天线阵等效为一个多端口网络,从而导出天线阵上电流分布和天线阵输入阻抗的理论计算公式,并应用上述公式分析计算了一个加载共轴天线阵的电流分布,与用矩量法所得结果进行了比较,两者基本吻合。结果表明,等效网络分析法的计算精度满足工程要求,具有运算简单,便于工程设计应用等优点。
In this paper, a fast engineering calculation method for analyzing arbitrary multi-point feed and loading of coaxial antenna arrays is proposed. That is to use the network theory to make the antenna array equivalent to a multi-port network so as to derive the current distribution on the antenna array and the antenna array input Impedance theoretical calculation formula, and the use of the above formula to calculate the current distribution of a loaded coaxial antenna array, compared with the results obtained by the moment method were compared, the two basically consistent. The results show that the computational accuracy of the equivalent network analysis method meets the engineering requirements and has the advantages of simple operation and convenient application in engineering design.