Application of Co-based amorphous ribbon to a noise filter and a shielded cable

被引:9
作者
Ishii, O [1 ]
Senda, M [1 ]
Takei, K [1 ]
Koshimoto, Y [1 ]
Mori, T [1 ]
机构
[1] NIPPON TELEGRAPH & TEL PUBL CORP, NETWORK SERV SYST LABS, MUSASHINO, TOKYO 180, JAPAN
关键词
D O I
10.1063/1.362283
中图分类号
O59 [应用物理学];
学科分类号
摘要
This paper describes the application of a Co-based amorphous alloy ribbon to a common-mode noise filter in the 1 MHz-1 GHz frequency range. Its saturation magnetization, and relative permeability were 6000 G and 1450, respectively. The 10-mu m-thick amorphous ribbon exhibits high loss characteristics. The resistance of a 2-mm-diam roll of amorphous ribbon (12.5 mm wide and 30 cm long) increases from 3 Omega at 1 MHz to 50 Omega at 350 MHz. It is confirmed that a filter 1/17th the volume of a conventional (ferrite core) filter exhibits the same noise attenuation. Moreover, the noise emission from a twisted pair cable is greatly reduced without any increase in the cable volume by employing the amorphous ribbon as a shielding material. (C) 1996 American Institute of Physics.
引用
收藏
页码:5483 / 5485
页数:3
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