Presentation 1999/11/26
Load Effect of Ferrite Core Attachment to Close Spaced Multiwires above a Ground Plane
Tetsuya MAEKAWA, Al Zaher Samir, Osamu FUJIWARA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Ferrite cores are commonly used to reduced the radiated emissions from electronic information devices and also to improve the system immunity, while the effects for the latter case are not being fully elucidated. This is due to lack of understanding on the load effect produced by a ferrite core attachment. From this viewpoint, we previously analyzed the load effect caused by attachment of the ferrite cores to a cable or a wire above a ground plane, and proposed equivalent circuits for the load effect. In this paper, a two-wire transmission line with the ferrite core attachment was analyzed to obtain an equivalent circuit for the load effect. Under the assumption that the ferrite core attached to the lines acts only on the common-mode transmission, the resultant equivalent circuit was derived. Based on this finding, the far-end and near-end crosstalk between the two-wire transmission line was calculated from the transmission line theory, which was confirmed experimentally.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Immunity / two-wire transmission line / ferrite core / load effect / crosstalk.
Paper # EMCJ99-94
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Conference Information
Committee EMCJ
Conference Date 1999/11/26(1days)
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Paper Information
Registration To Electromagnetic Compatibility (EMCJ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Load Effect of Ferrite Core Attachment to Close Spaced Multiwires above a Ground Plane
Sub Title (in English)
Keyword(1) Immunity
Keyword(2) two-wire transmission line
Keyword(3) ferrite core
Keyword(4) load effect
Keyword(5) crosstalk.
1st Author's Name Tetsuya MAEKAWA
1st Author's Affiliation Faculty of Engineering, Nagoya Institute of Technology()
2nd Author's Name Al Zaher Samir
2nd Author's Affiliation Faculty of Engineering, Nagoya Institute of Technology
3rd Author's Name Osamu FUJIWARA
3rd Author's Affiliation Faculty of Engineering, Nagoya Institute of Technology
Date 1999/11/26
Paper # EMCJ99-94
Volume (vol) vol.99
Number (no) 469
Page pp.pp.-
#Pages 6
Date of Issue