在磁性金属微粉的雷达吸波涂层中引入导电纤维层具有减轻质量和展宽吸收频带作用,本文采用磁性金属微粉和短导电纤维制备了一种三层雷达吸波材料。研究表明,三层的相对顺序对吸波涂层的带宽与峰值具有明显影响,在面密度为2.50kg/m2的条件下,当导电纤维层位于表层时带宽最大,在8~18GHz频段范围内反射率小于-10dB的带宽达7GHz。 Introducing the conductive fiber layer into the radar absorbing coating of magnetic metal powder has the function of reducing the mass and broadening the absorption band. In this paper, a three-layer radar absorbing material was prepared by using magnetic metal micropowder and short conductive fiber. The results show that the relative order of the three layers has a significant effect on the bandwidth and peak value of the absorbing coating. Under the condition of areal density of 2.50kg / m2, the maximum bandwidth is obtained when the conductive fiber layer is located on the surface layer. In the range of 8-18GHz Reflectance is less than -10dB of bandwidth up to 7GHz.