长径比对多晶铁纤维吸收剂微波电磁参数的影响

Effects of Aspect Ratio on Microwave Electromagnetic Parametes of Polycrystalline Iron Fibers

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与长径比的理论关系式；根据理论，通过对5GHZ频率下多品饮纤维的数值分析，讨论了长径比对多晶铁纤维吸收剂微波复因导率和复介电常数的影响，得到随长径比的归大铁纤维发磁导率虚部、复介电常数实部和虚部都显著增大的结论。

Based on the Maxwell Equation,the theoretical relationships of microwave complex permeability and permittivity of polycrystalline iron fibers to aspect ration are derived. After numerical calculations on polycrystalline iron fibers around 5GHz having been carried out,effects of aspect ratio on microwave complex permeability and permittivity of polycrystalline iron fibers are discussed. A conclusion that the imaginary part of complex permeability and the real and imaginary parts of complex permittivity increase significantly with increasing aspect ratio is