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依球面波展开法等绕射理论,对偏焦轴天线的副面散射场、次级方向图和效率作了分析。理论计算和实验结果的良好吻合,表明文中给出的计算公式对于工程应用是有效的。
Based on the diffraction theory such as the spherical wave expansion method, the secondary scattering field, secondary pattern and efficiency of the focal axis antenna are analyzed. The good agreement between theoretical calculation and experimental results shows that the formulas given in this paper are effective for engineering application.