High-frequency noise suppression in downsized circuits using magnetic granular films

被引:85
作者
Yoshida, S [1 ]
Ono, H
Ando, S
Tsuda, F
Ito, T
Shimada, Y
Yamaguchi, M
Arai, KI
Ohnuma, S
Masumoto, T
机构
[1] Tokin Corp, Kanagawa 2130023, Japan
[2] Electromagnet Compatibil Res Lab Co Ltd, Miyagi 9893204, Japan
[3] Tohoku Univ, Res Inst Sci Measurements, Sendai, Miyagi 9808577, Japan
[4] Tohoku Univ, Res Inst Elect Commun, Sendai, Miyagi 9808577, Japan
[5] Res Inst Elect & Magnet Mat, Miyagi 9820807, Japan
关键词
conduction noise-suppression; EMC; ferromagnetic granular film; transmission characteristics;
D O I
10.1109/20.951185
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Noise suppression in downsized circuits utilizing magnetic granular films is demonstrated. Films of Fe-Al-O with thickness of 2 mum which exhibit very high mu " dispersion in the quasimicrowave band were found to work as noise suppressors. The films were attached onto a micro-strip line and the transmission characteristics were compared. This work is the first to verify that films with only 2 mum thickness can play a role in suppression of high frequency conduction noise in the quasimicrowave band. The results suggest a possibility of thin film noise suppressors which can be integrated into micron scale semiconductor circuits.
引用
收藏
页码:2401 / 2403
页数:3
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