Presentation 1998/3/16
Prediction on noise reduction effect of ferrite beads on near-field EMI emitted from a PCB (part II)
Takuya MIYASHITA, Shuichi NITTA, Atsuo MUTOH,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) As an elementary study to design the electronic devices satisfying EMC-regulation, the prediction on noise reduction effect of ferrite beads on electromagnetic interfernece (EMI) is studied. In this report, electromagnetic emission from a power-line on a digital printed circuit board (PCB) is investigated. To predict noise reduction effect of ferrite beads, the resonance characteristics of a digital circuit are calculated using a RF equivalent model. Predicted results are compared with measured results. In the frequency region beyond 40 MHz, predicted noise reduction effect is in good agreement with measured results within the error of 4 dB.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) digital circuit / near-field EMI / ferrite beads / RF equivalent circuit / resonance characteristics
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Committee EMCJ
Conference Date 1998/3/16(1days)
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Registration To Electromagnetic Compatibility (EMCJ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Prediction on noise reduction effect of ferrite beads on near-field EMI emitted from a PCB (part II)
Sub Title (in English)
Keyword(1) digital circuit
Keyword(2) near-field EMI
Keyword(3) ferrite beads
Keyword(4) RF equivalent circuit
Keyword(5) resonance characteristics
1st Author's Name Takuya MIYASHITA
1st Author's Affiliation Faculty of Technology, Tokyo University of Agriculture and Technology()
2nd Author's Name Shuichi NITTA
2nd Author's Affiliation Faculty of Technology, Tokyo University of Agriculture and Technology
3rd Author's Name Atsuo MUTOH
3rd Author's Affiliation Faculty of Technology, Tokyo University of Agriculture and Technology
Date 1998/3/16
Paper #
Volume (vol) vol.97
Number (no) 608
Page pp.pp.-
#Pages 6
Date of Issue