Presentation 2006-10-26
Discussion for Effective Use of Integrated Thin Film Type RF Noise Suppressors
Kaori MARUTA, Syo MUROGA, Yutaka SHIMADA, Masahiro YAMAGUCHI,
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Abstract(in English) This paper discusses about frequency and size dependence on the optimum sheet resistance of RF noise suppression films, which maximize high harmonic losses in transmission lines, using three-dimensional (3-D) finite-element method (FEM) electromagnetic field simulation. In the simulation model, noise suppression films with sheet resistance of 10^0~10^6Ω/square were put on top of a microstrip-line. Based on simulated results of eddy currents in the film, mechanism of optimum sheet resistance was analyzed. At 0.5, 2,5 and 10GHz, simulated maximum power losses of the microstrip-line were 0.06 with sheet resistance of 2000Ω/square, 0.19 with sheet resistance of 1000Ω/square, 0.34 with sheet resistance of 400Ω/square and 0.49 with sheet resistance of 200Ω/square. With increasing of the film length, the optimum sheet resistance is fixed and power losses increase proportional to the length. With increasing of the film width, the optimum sheet resistance shift to lower value and power losses increase. With increasing of the film thickness, both the optimum sheet resistance and power losses are almost same for all thicknesses. Designing a magnetic film based on optimum sheet resistance and ferromagnetic resonance, the simulated power loss reached 0.53, which was increased by 63% compared with nonmagnetic film.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) EMC / RF noise suppressor / sheet resistance / eddy current loss / ferromagnetic resonance losses
Paper # EMCJ2006-55,MW2006-111
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Conference Information
Committee EMCJ
Conference Date 2006/10/19(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) Discussion for Effective Use of Integrated Thin Film Type RF Noise Suppressors
Sub Title (in English)
Keyword(1) EMC
Keyword(2) RF noise suppressor
Keyword(3) sheet resistance
Keyword(4) eddy current loss
Keyword(5) ferromagnetic resonance losses
1st Author's Name Kaori MARUTA
1st Author's Affiliation School of Engineering, Tohoku University()
2nd Author's Name Syo MUROGA
2nd Author's Affiliation School of Engineering, Tohoku University
3rd Author's Name Yutaka SHIMADA
3rd Author's Affiliation School of Engineering, Tohoku University
4th Author's Name Masahiro YAMAGUCHI
4th Author's Affiliation School of Engineering, Tohoku University
Date 2006-10-26
Paper # EMCJ2006-55,MW2006-111
Volume (vol) vol.106
Number (no) 322
Page pp.pp.-
#Pages 6
Date of Issue