制备了含有Co基玻璃包覆非晶丝的膜状噪声抑制材料,采用微带线测试系统测试了复合膜的S参数,并计算出功率损耗比,研究了丝材含量对复合膜噪声抑制特性的影响.结果显示,在较低频率(10MHz～3.5GHz),复合膜导致的反射随着丝材含量的增加而增大,但当丝材含量增加至60cm-2时,反射接近饱和.丝材含量高于30cm-2时,样品的S21曲线在测试频率范围内出现吸收峰,且峰值对应的频率随着丝材含量的增加逐渐减小.丝材含量为60cm-2时,复合膜的功率损耗比在2.7～8.5GHz范围内高于75％,具有较好的噪声抑制效果.
参考文献
| [1] | IEC 62333-2:2006(E),Noise suppression sheet for digital devices and equipment-part 2:Measuring methods[S].Geneva:IEC Central Office,2006. |
| [2] | 王添文,李子森.电磁干扰噪声抑制片应用介绍[J].装备环境工程,2008(01):92-94. |
| [3] | Kim K. H.;Yu J.-H.;Lee S.-B.;Lee S. K.;Choa Y. H.;Oh S.-T.;Kim J. .RF Conduction In-Line Noise Suppression Effects for Fe and NiFe Magnetic Nanocomposite[J].IEEE Transactions on Magnetics,2008(11 Pt.2):3805-3808. |
| [4] | Subramani K. Ailoor;Takaaki Taniguchi;Koichi Kondo .Coupling of MnZn-ferrite films onto electronic components by a novel solution process for high frequency applications[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2009(31):5510-5517. |
| [5] | Kim ST;Ryu GB;Kim SS .Conduction noise attenuation by Fe3O4 thin films attached on microstrip line[J].Journal of Applied Physics,2006(8):M8919-1-M8919-3-0. |
| [6] | Kim SW;Lee JH;Kim YB;Lee KS .Attenuation characteristics of near-field electromagnetic noise through microstrip line for magnetic absorbers with different levels of conductivity[J].Journal of Applied Physics,2008(7 Pt.3):E7733-1-E7733-3-0. |
| [7] | Sohn J;Han SH;Kim KH;Yamaguchi M;Lim SH .A non-integrated type noise suppressor incorporated with a highly resistive Co-Fe-Al-O thin film on a coplanar waveguide transmission line[J].Journal of Magnetism and Magnetic Materials,2007(2):708-713. |
| [8] | LU Guang-Duo,ZHANG Huai-Wu,TANG Xiao-Li.Soft Magnetic Thin Films FeCoHfO for High-Frequency Noise Suppression Applications[J].中国物理快报（英文版）,2010(09):195-198. |
| [9] | Subramani, AK;Kondo, K;Tada, M;Abe, M;Yoshimura, M;Matsushita, N .High resistive ferrite films by a solution process for electromagnetic compatible (EMC) devices[J].Journal of Magnetism and Magnetic Materials,2009(24):3979-3983. |
| [10] | Hiroshi Ono;Tetsuo Ito;Shigeyoshi Yoshida;Yasuharu Takase;Osamu Hashimoto;Yutaka Shimada .Noble Magnetic Films for Effective Electromagnetic Noise Absorption in the Gigahertz Frequency Range[J].IEEE Transactions on Magnetics,2004(4):2853-2857. |
| [11] | Bijoy K. Kuanr;Ryan Marson;Sanjay R. Mishra;Alka V. Kuanr;R. E. Camley;Z. J. Celinski .Gigahertz frequency tunable noise suppressor using nickel nanorod arrays and Permalloy films[J].Journal of Applied Physics,2009(7):07A520-1-07A520-3-0. |
| [12] | Nam, B.;Choa, Y.-H.;Oh, S.-T.;Lee, S. K.;Kim, K. H. .Broadband RF Noise Suppression by Magnetic Nanowire-Filled Composite Films[J].IEEE Transactions on Magnetics,2009(6):2777-2780. |
| [13] | DI Yong-jiang,JIANG Jian-jun,DU Gang,TIAN Bin,BIE Shao-wei,HE Hua-hui.Magnetic and microwave properties of glass-coated amorphous ferromagnetic microwires[J].中国有色金属学会会刊（英文版）,2007(06):1352-1357. |
| [14] | 何璞祯,王自东,王护利,张鸿,李向明,王宪军,侯志坚.玻璃包覆铁基微丝的微波电磁特性[J].纳米技术与精密工程,2009(02):114-118. |
| [15] | 邸永江,江建军,吴挺华,何华辉.玻璃包覆磁性微丝的制备及微波电磁性能[J].功能材料,2007(02):173-175. |
| [16] | S. N. Starostenko;K. N. Rozanov;A. V. Osipov .Microwave properties of composites with glass coated amorphous magnetic microwires[J].Journal of Magnetism and Magnetic Materials,2006(1):56-64. |
| [17] | Lagarkov AN.;Sarychev AK. .ELECTROMAGNETIC PROPERTIES OF COMPOSITES CONTAINING ELONGATED CONDUCTING INCLUSIONS[J].Physical Review.B.Condensed Matter,1996(10):6318-6336. |
| [18] | Panina LV;Sandacci SI;Makhnovskiy DP .Stress effect on magnetoimpedance in amorphous wires at gigahertz frequencies and application to stress-tunable microwave composite materials[J].Journal of Applied Physics,2005(1):3701-1-3701-6-0. |
| [19] | Field dependent permittivity of composite materials containing ferromagnetic wires[J].Journal of Applied Physics,2003(7):4120-4129. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%