基于各向异性织物的电磁屏蔽性能仿真计算  

Simulation of Electromagnetic Shielding Performance Based on Anisotropic Fabric

作　　者：李建雄[1,2] 贾红玉 陈纯锴[1,2] 赵晓明 LI Jianxiong;JIA Hongyu;CHEN Chunkai;ZHAO Xiaoming(School of Electronics and Information Engineering,Tianjin Polytechnic University,Tianjin 300387;Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems,Tianjin 300387;School of Textiles,Tianjin Polytechnic University,Tianjin 300387)

机构地区：[1]天津工业大学电子与信息工程学院,天津300387 [2]天津布光电检测技术和系统重点实验室,天津300387 [3]天津工业大学纺织学院,天津300387

出　　处：《材料导报》2018年第18期3235-3238,3248,共5页Materials Reports

基　　金：国家自然科学基金资助项目(61372011);天津市高等学校创新团队培养计划(TD13-5040)。

摘　　要：为实现电磁织物的屏蔽效能理论预测及其优化设计,本研究对电磁屏蔽织物构建了三维模型,采用CST (Computer simulation technology)微波工作室模拟各向异性织物与电磁波相互作用的机理。计算了在1~18GHz波段内,电磁波入射角和方位角对屏蔽效能的影响。结果表明:x轴和y轴方向介电常数对织物屏蔽效能的影响较为显著,且在各向异性介电常数较小时,屏蔽效能随电磁波入射角的增加呈现先增大后减小的趋势;而当电磁波方位角发生变化时,不同电磁波入射角对其产生的屏蔽效能影响规律不同。本研究结果对各向异性织物具有较好的适用性,为开发高性能电磁屏蔽织物提供理论依据。A 3D model of electromagnetic shielding fabric was constructed for the prediction of shielding effectiveness and optimization.The process of the fabric and electromagnetic wave interaction is simulated by using CST microwave studio.We computed the shielding effectiveness in 1-18 GHz range,including different incidence angle of electromagnetic wave and azimuth of electromagnetic wave.The result showed that the effect of dielectric constant of x axis and y axis on the shielding effectiveness of fabric was more significant.When the dielectric constant was small,the shielding effectiveness increased with the increase of the incident angle of electromagnetic wave.When the azimuth of electromagnetic wave changed,the incident angle of different electromagnetic waves had different effects on shielding effectiveness.This study had universal applicability,and provided a theoretical proof in optimizing design for high-performance shielding fabric.

关 键 词：各向异性 等效模型 介电常数 屏蔽效能 

分 类 号：O441.4[理学—电磁学] TS101[理学—物理]