进而结合实际的天线结构，运用矩量法计算了金属盒大小对天线阻抗和方向图的影响。

Then the impacts of metal case size on the input impedances and patterns of antennas are discussed with the moment method.

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矩量法(MOM)是一种有效的分析复杂目标电磁特性的数值计算方法。

Method of moments (mom) is an efficient numerical method for the analyses of electromagnetic characteristics of complex objects.

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对矩量法矩阵中自阻抗元素的奇异性处理方法也作了详细介绍。

The method for handling the singularity of the self-impedance element in MoM matrix is also presented.

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