摘要
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2.50 kg/m2的条件下,当导电纤维层位于表层时带宽最大,在8～18 GHz频段范围内反射率小于-10 dB的带宽达7 GHz.
According to electromagnetic spreading regulation,and transmission line theory, a kind of light wideband three -layered radar absorbing coating with magnetic metal powder and short conductive fiber were prepared. Microwave properties of the radar absorbing coatings were analyzed by the vector network analyzer. The addition of electrical conductive fiber layer widens the absorption frequency range in X- and Ku -band （8 -18GHz）. It is found that the surface layer containing short conductive fibers has an absorbing bandwidth of 7GHz under - 10dB reflection, which is much wider than that of sole absorbers in X- and Ku- band （8 -18GHz）. The addition of electrical conductive fiber lowers the density of the coating at the same time.
出处
《功能材料与器件学报》
EI
CAS
CSCD
北大核心
2007年第3期221-225,共5页
Journal of Functional Materials and Devices
关键词
雷达吸波涂层
磁性金属粉末
短导电纤维
微波性能
three -layered absorbing coating
magnetic metal powder
short conductive fiber
microwave properties
