本文研究了Sendust软磁合金复合材料在动态场和高频下涡流损耗、磁滞损耗等的主要机理,侧重报道Sendust软磁合金材料的磁损耗理论和实验工艺研究相结合所作的工作,并介绍了用于EMI抑制的Sendust软磁复合材料元器件的制作过程,经测试其在频段范围800MHz～1.5GHz内,磁导率虚部平均值为10.4,平均抑制效果(S21)可达11.5dB.
The main mechanism of eddy current losses and hysteretic loss of Sendust Soft-magnetic alloy material used in dynamic field and high frequeney was studied in this thesis,and process of experiment design was detail introduced.Accordingly the course that how to prepare the Sendust soft-magnetic alloy material's used in EMI suppression aspect in high frequency was reposed.It wad testified that the average value of Im of permeability is 10.4 and S21 is 11.5dB in frequent range between 800MHz and 1.5GHz.
参考文献
| [1] | K Nomura;K Suzuki;T Sawada.CEMS Study oil Fe-Si -Al Alloy Flakes-Polymer[J].Composites Hyperfine Interaction,2003(148):345-350. |
| [2] | R. Ramprasad;P. Zurcher;M. Petras;M. Miller;P. Renaud .Magnetic properties of metallic ferromagnetic nanoparticle composites[J].Journal of Applied Physics,2004(1):519-529. |
| [3] | 姜寿亭;李卫.凝聚态磁性物理[M].北京:科学出版社,2003:378-410. |
| [4] | 宛德福;罗世华.磁性物理[M].北京:电子工业出版社,1987:259-305. |
| [5] | Agilent Solutions for Measuring Permittivity and Permeability with LCR Meters and Impedance Analyzers[M].,2000:1-156. |
| [6] | Jitoh;Y Fujii;K Matsumoto;Y Gotoh,Y Sugiura,A Yamanaka.Insertion Loss Measurement of a Ferrite Clamp Used in the CISPR 22 Radiated Emission Measurements Electromagnetic Compatibility[A].,2002:6-11. |
| [7] | 蒋晓红.矢量网络分析仪的原理与使用[J].空载雷达,2004(04):69-79. |
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