FeCoB多层薄膜噪声抑制器的传导噪声抑制特性  

Study on conducted noise suppression characteristics of FeCoB multilayer thin film noise suppressor

作　　者：段锋 DUAN Feng(School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]电子科技大学电子科学与工程学院,四川成都610054

出　　处：《磁性材料及器件》2024年第1期12-15,共4页Journal of Magnetic Materials and Devices

摘　　要：通过多层化设计的方法提升噪声抑制器的性能,使用有限元仿真的方法研究层数对FeCoB多层膜噪声抑制器性能的影响,随后通过磁控溅射工艺制备了不同层数的FeCoB噪声抑制器。仿真与实验结果均表明,当层数较小时,噪声抑制器的性能随层数的增强而增强,当层数较大时性能趋于稳定。制备的FeCoB噪声抑制器(长10 mm,宽10 mm)在层数为4时传导噪声抑制性能Ploss/Pin可以达到83%,实验结果表明FeCoB多层噪声抑制器能够有效的抑制GHz频段的电磁干扰。The article improves the performance of the noise suppressor through the method of multi-layer design.The effect of the number of layers on the performance of the FeCoB multilayer film noise suppressor was studied by using the finite element simulation method,and then FeCoB noise suppressors with different layers were prepared by the magnetron sputtering process.Both the simulation and experimental results show that when the number of layers is small,the performance of the noise suppressor increases with the increase of the number of layers,and the performance tends to be stable when the number of layers is large.The FeCoB noise suppressor(length 10 mm,width 10 mm)can achieve 83%conduction noise suppression performance Ploss/Pin when the number of layers is 4.The experimental results show that the FeCoB multilayer noise suppressor can effectively suppress electromagnetic interference in the GHz frequency band.

关 键 词：噪声抑制器 磁性薄膜 铁磁共振 

分 类 号：TM271.2[一般工业技术—材料科学与工程]