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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电磁参数的理论计算公式，通过数值分析，阐述了多晶铁纤维吸收剂微波电磁参数的各向异性．通过纤维取向样品的制备和测试，实验验证了电磁参数的各向异性．理论和实验研究均表明，多晶铁纤维吸收剂的微波电磁参数具有明显的形状各向异性，其轴向磁导率大于径向磁导率，轴向介电常数大于径向介电常数．
Based on Maxwell’s equations, the theoretical formula of microwave electromagnetic parameters of polycrystalline iron fiber absorbent was deduced. By numerical analysis, the anisotropy of microwave electromagnetic parameters of polycrystalline iron fiber absorbent was described. Through the preparation and testing of fiber orientation samples, the anisotropy of electromagnetic parameters was experimentally verified. Both theoretical and experimental studies show that microwave electromagnetic parameters of polycrystalline iron fiber absorbent have obvious shape anisotropy, axial magnetic permeability is larger than radial magnetic permeability and axial dielectric constant is larger than radial dielectric constant.