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由麦克斯韦方程出发，导出了多晶铁纤维吸收剂微波复磁导率和复介电常数的理论计算公式；通过对5GHz频率点多晶铁纤维吸收剂的数值计算，分析了多晶铁纤维的直径、长径比及电导率等对其电磁参数的影响。
Based on Maxwell’s equation, the theoretical formula of complex permeability and complex permittivity of polycrystalline iron fiber absorber was deduced. Based on the numerical calculation of polycrystalline iron fiber absorber at 5GHz, the effects of polycrystalline iron fiber Diameter, aspect ratio and conductivity on its electromagnetic parameters.