摘要
采用含有碳纤维的碳纤维纸制备孔径型与贴片型频率选择表面(frequency selective surfaces,FSS)。以芳纶纸蜂窝为匹配介质层,利用体视显微镜对碳纤维纸中的碳纤维分布进行微观表征,用矢量网络分析仪测试复合材料FSS的反射率。在碳纤维纸的基体面积占比率相同时,研究单元形状、碳纤维纸中碳纤维含量、碳纤维长度对孔径型FSS与贴片型FSS吸波性能的影响规律。结果表明:在2~18 GHz范围内,孔径型FSS与贴片型FSS的吸波性能与碳纤维纸中碳纤维的含量、长度有关,与单元形状无关;在6~18 GHz,碳纤维纸的基体面积占比率相同时,单元形状、碳纤维纸中碳纤维的长度、含量都使得孔径型FSS的吸波性能优于贴片型FSS。
Aperture-type and patch-type frequency selective surfaces(FSS) were prepared by using carbon fiber paper containing carbon fiber. Using honeycomb as the matching dielectric layer, microscopic characterization of carbon fiber distribution in carbon fiber paper was performed by stereo microscope, the reflectivity of the composite FSS structure was tested by a vector network analyzer. The influences of unit shape, carbon fiber content in carbon fibre paper and carbon fiber length on the wave absorbing performance of aperture type FSS and patch type FSS were studied with the same matrix area ratio of carbon fiber paper. The results show that in the range of 2-18 GHz, the absorbing properties of aperture-type FSS and patch-type FSS are related to the content and length of carbon fiber in carbon fiber paper, and has nothing to do with the shape of the unit. At 6-18 GHz, with the same the ratio of the matrix area of carbon fiber paper, the shape of unit, the length and content of carbon fiber in the carbon fiber paper, the absorbing properties of aperture-type FSS are better than that of patch-type FSS.
作者
袁旭冏
刘文言
王艳
陆泽涛
张有为
韩沐畴
李晓
刘敏
YUAN Xujiong;LIU Wenyan;WANG Yan;LU Zetao;ZHANG Youwei;HAN Muchou;LI Xiao;LIU Min(Aviation Key Laboratory of Science and Technology on Stealth Materials,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;School of Mechanical and Electrical Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)
出处
《航空材料学报》
EI
CAS
CSCD
北大核心
2020年第4期92-98,共7页
Journal of Aeronautical Materials
基金
基础性军工科研院所稳定支持项目
北京市科技新星项目(Z181100006218087)。
