APPLICATION OF AMORPHOUS FLAKE TO ELECTROMAGNETIC-INTERFERENCE (EMI) NOISE-FILTER

被引：1

作者：

ISHII, O ^{[1
]}

SENDA, M ^{[1
]}

TAKEI, K ^{[1
]}

MORI, T ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP, NETWORK SERV SYST LABS, MUSASHINO, TOKYO 180, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1995年 / 34卷 / 3B期

关键词：

AMORPHOUS ALLOY; EMI; NOISE FILTER;

D O I：

10.1143/JJAP.34.L359

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 flake to a common-mode noise filter. Saturation magnetization and relative permeability are measured to be 7000 G and 1150, respectively. The amorphous flake exhibits high loss characteristics; the resistance of a 0.0065 cm(3) amorphous flake increases from 0.14 Omega at 1 MHz to 2.2 Omega at 1 GHz as the frequency is increased. It is confirmed that a filter of 1/7 the volume of a conventional filter (ferrite core) exhibits the same noise attenuation in the 10 MKz similar to 1 GHz frequency range.

引用

页码：L359 / L360

页数：2