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http://dx.doi.org/10.5394/KINPR.2002.26.5.525

Design and Fabrication of Broad-Band EMC Filter for Power Line  

Kim, Dong-Il (한국해양대학교 전파공학과)
Ku, Dong-Woo (한국해양대학교 전파공학과)
Yang, Eun-Jung (한국해양대학교 전파공학과)
Kim, Do-Yearn (한국해양대학교 전파공학과)
Yea, Byeong-Dok (한국해양대학교 해사수송과학부)
Publication Information
Journal of Navigation and Port Research / v.26, no.5, 2002 , pp. 525-528 More about this Journal
Abstract
The proposed EMC filter composed with feed-through capacitors and ferrite beads of high permeability was prepared which satisfy the EMC standard for a wide-band noise signal in the frequence of 10 MHz to 1.5 GHz in power supply line. The optimum structure of ferrite bead was found by calculating the load effect of ferrite beads. As a result, the filter showed excellent differential- and common-mode noises filtering characteristics above 30dB in the frequency band from 10 MHz to 1.5 GHz. The immunity characteristics are improved more than 10 to 30 dB over the frequency band from DC to 1.8GHz.
Keywords
EMC; comon-mode; differential-mode; feed-through capacitors; ferrite beads;
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