Normal modes in the pole and important characteristic parameters such as resonance frequency and position of the displacement node are obtained using the finite element method.

并应用有限元法对变幅杆进行了模态分析，得到了共振频率和位移节点等重要参数。

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Then theoretical resonance length, small end diameter, displacement node, magnification factor, shape factor and other parameters of the amplitude amplifier pole could be determined.

确定出其理论共振长度、小端直径、位移节点、放大系数、形状因数等参数。

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Based on the structural analysis of the reflector antenna, a mesh model of the distorted reflector is obtained through the node displacement of elements of the distorted reflector.

该方法基于反射面天线的结构分析，利用变形反射面单元的节点位移信息得到变形后的反射面的网格模型。

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