吸波剂用量对雷达吸波涂层吸收性能的影响  

Influences of Dosages of Absorbing Reagents on Microwave Absorption Properties of Radar Absorbing Coatings

作　　者：侯进[1] 陈国华[1] 

机构地区：[1]中国海洋大学化学化工学院,青岛266100

出　　处：《材料导报（纳米与新材料专辑）》2008年第1期314-315,320,共3页

基　　金：国家重点基础研究发展规划973计划基金资助项目(2003CB615706)

摘　　要：采用铁氧体、电阻型和电介质型物质作为吸波剂,制备出了具有阻抗渐变结构的三层复合雷达吸波涂层,探讨了表层、中层和底层吸波剂用量对吸波性能的影响。实验结果表明:增加表层、中层或底层吸波剂含量,均能使吸波性能曲线向低频端方向移动,反之,吸波性能曲线向高频端方向移动;选择适当的吸波剂用量才能拓宽、加深涂层的吸波性能。制备的试样中反射损耗可达-18.78dB和-33.15dB,其小于-10dB的频宽分别为4.08GHz和2.68GHz。The tri-layer composite radar absorbing coatings with impedance-graded structure are prepared by using absorbing reagents such as ferrite, resistance and dielectric materials. The influences of dosages of absorbing reagents on microwave absorption properties are studied. The results show that the absorption curves shift to lower frequency with increased dosages of absorbing reagents,otherwise shift to higher frequency. The absorption curves can be widened and deepened by selecting appropriate dosages of absorbing reagents. The reflection losses reach -- 18. 78dB and -33.15dB and the absorption bandwidths are 4. 08GHz and 2.68GHz below -10dB respectively.

关 键 词：吸波性能 吸波剂用量 雷达吸波涂层 铁氧体 

分 类 号：TN04[电子电信—物理电子学] TN604