论文部分内容阅读
基于FEKO仿真软件,构建夹芯型吸波材料的反射率仿真分析模型,研究透波传输层材质及厚度对夹芯型吸波材料吸波性能的影响,进一步设计并制备了兼具良好侵彻性能的夹芯型吸波材料。结果表明:在填充导电炭黑(w=3%)和磁损耗型吸波剂MZ(w=40%)的聚氨酯基吸波芯材表面前置3 mm厚的石英玻璃纤维增强复合材料作透波传输层,可以有效提高吸波芯材的吸波性能;由3 mm Q-GFRP、5 mm PU基吸波芯材、5 mm S-GFRP和3 mm CFRP构成的夹芯型吸波材料的综合性能最佳,拥有11 mm厚的防护材料层,且对7.19 GHz~18.00 GHz频段电磁波的吸收率大于90%。
Based on the FEKO simulation software, the reflectivity simulation analysis model of the sandwich type absorbing material is established. The influence of the material and thickness of the transmitting layer on the absorbing performance of the sandwich type absorbing material is studied. Performance of the sandwich type absorbing material. The results show that a 3 mm thick quartz glass fiber reinforced composite material is placed in front of the surface of a polyurethane-based absorbing core filled with conductive carbon black (w = 3%) and magnetic loss absorbing agent MZ (w = 40% Wave transmission layer, which can effectively improve the absorbing performance of the absorbing core material; sandwich type absorbing material consisting of 3 mm Q-GFRP, 5 mm PU-based absorbing core material, 5 mm S-GFRP and 3 mm CFRP Best overall performance, with 11 mm thick protective material layer, and the frequency of 7.19 GHz ~ 18.00 GHz electromagnetic wave absorption rate greater than 90%.