| 引用本文: | 李长亮,鞠苏,陈大庆,等.碳纤维增强聚合物基复合材料频率选择表面的电磁传输特性.[J].国防科技大学学报,2016,38(1):50-55.[点击复制] |
| LI Changliang,JU Su,CHEN Daqing,et al.Electromagnetic transmission characteristics of frequency selective surfaces with carbon fiber fabric/epoxy composite[J].Journal of National University of Defense Technology,2016,38(1):50-55[点击复制] |
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| 碳纤维增强聚合物基复合材料频率选择表面的电磁传输特性 |
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(1. 太原卫星发射中心 技术部， 山西 太原 030027;2. 国防科技大学 航天科学与工程学院， 湖南 长沙 410073)
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| 摘要: |
| 为了避免采用金属频率选择表面制备的天线罩中存在的热残余应力和弱黏接界面等问题，采用与聚合物基复合材料罩壁结构相容性好的碳纤维增强聚合物基复合材料制备频率选择表面，利用自由空间法对试样的电磁传输性能进行测试，并采用数值分析模型对碳纤维复合材料频率选择表面的电磁传输机制和电磁传输影响因子进行分析。结果表明：碳纤维复合材料频率选择表面具有频率选择功能，但谐振频率处的电磁传输损耗较大；通过改变复合材料频率选择表面的单元缝隙率、厚度、电导率以及介电常数可以实现对其电磁传输性能的调节。 |
| 关键词: 频率选择表面 复合材料 碳纤维 数值分析 电磁传输 |
| DOI：10.11887/j.cn.201601009 |
| 投稿日期：2015-07-23 |
| 基金项目:国家自然科学基金资助项目（11202231）；国防科技大学校预研基金资助项目（JC12-01-07） |
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| Electromagnetic transmission characteristics of frequency selective surfaces with carbon fiber fabric/epoxy composite |
| LI Changliang1,2, JU Su3, CHEN Daqing1, CHEN Yong1, REN Mingli1, ZHANG Tianbin1 |
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(1. Technical Department, Taiyuan Satellite Launch Center, Taiyuan 030027, China;2.
2. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;3.2. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China)
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| Abstract: |
| There are problems, such as thermal residual stress and second bonding layers, in radome which is prepared by metal FSSs (frequency selective surfaces). To avoid these disadvantages, carbon fiber fabric/epoxy composite which has good compatibility with radome wall structure of polymer composite was adopted to prepare FSSs; the free space method was carried out to evaluate the electromagnetic transmission characteristics of the composite FSS specimens; the numerical analysis model was employed to analyze the electromagnetic transmission mechanism and influencing factors of FSS. Results show that: the composite FSS with carbon fiber can realize the function of frequency selection, while the transmission loss at the position of resonance frequency is great; the electromagnetic transmission performance of composite FSS can be adjusted by changing the aperture-to-cell ratio, thickness, conductivity and dielectric constant. |
| Keywords: frequency selective surface composite carbon fiber numerical simulation electromagnetic transmission |
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