Presentation 2020-10-23
Analytical Study on Near Field Magnetic Shielding Effectiveness of Perforated Laminated Sheet Using Copper and Magnetic Sheets
Takahiro Seto, Akihisa Tsuchiya, Ryosuke Suga, Hideaki Sugama, Osamu Hashimoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The demand for shielding materials increases to suppress the wide-band radiation noise up to 30 MHz caused by high-speed switching devices. Authors had reported a wide-band 50-dB shielding laminated sheet composed of copper and magnetic sheets. In this study, the shielding performance of the sheet with N periodic apertures was evaluated by using an electromagnetic simulation model of the KEC method for the purpose of possessing its ventilation characteristics. The shielding performances converged with N=400 and were independent with the aperture area ratio when periodic interval is 50/√N. It is found that the 40-dB shielding performances with the aperture area ratio of 20% were obtained from 0.1 MHz to 10 MHz.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Magnetic shielding effectiveness / KEC method / near field / aperture / copper / magnetic material
Paper # EMCJ2020-45,MW2020-59,EST2020-47
Date of Issue 2020-10-15 (EMCJ, MW, EST)

Conference Information
Committee MW / EST / EMCJ / IEE-EMC
Conference Date 2020/10/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoshinori Kogami(Utsunomiya Univ.) / Shinichiro Ohnuki(Nihon Univ.) / Kensei Oh(Nagoya Inst. of Tech.)
Vice Chair Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.) / Yasuhide Tsuji(Muroran Inst. of Tech.) / Atsuhiro Nishikata(Tokyo Inst. of Tech.)
Secretary Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo(Aoyama Gakuin Univ.) / Masayuki Kimishima(ENRI) / Jun Shibayama(Denso) / Yasuhide Tsuji(NAIST) / Atsuhiro Nishikata
Assistant Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank) / Hidenori Ishibashi(MitsubishiElectric) / Seiya Kishimoto(Nihon Univ.) / Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin EMC Engineering) / Sho Muroga(Akita Univ.)

Paper Information
Registration To Technical Committee on Microwaves / Technical Committee on Electronics Simulation Technology / Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analytical Study on Near Field Magnetic Shielding Effectiveness of Perforated Laminated Sheet Using Copper and Magnetic Sheets
Sub Title (in English)
Keyword(1) Magnetic shielding effectiveness
Keyword(2) KEC method
Keyword(3) near field
Keyword(4) aperture
Keyword(5) copper
Keyword(6) magnetic material
1st Author's Name Takahiro Seto
1st Author's Affiliation Aoyama Gakuin University(Aoyama Gakuin Univ.)
2nd Author's Name Akihisa Tsuchiya
2nd Author's Affiliation KISTEC(KISTEC)
3rd Author's Name Ryosuke Suga
3rd Author's Affiliation Aoyama Gakuin University(Aoyama Gakuin Univ.)
4th Author's Name Hideaki Sugama
4th Author's Affiliation KISTEC(KISTEC)
5th Author's Name Osamu Hashimoto
5th Author's Affiliation Aoyama Gakuin University(Aoyama Gakuin Univ.)
Date 2020-10-23
Paper # EMCJ2020-45,MW2020-59,EST2020-47
Volume (vol) vol.120
Number (no) EMCJ-199,MW-200,EST-201
Page pp.pp.115-118(EMCJ), pp.115-118(MW), pp.115-118(EST),
#Pages 4
Date of Issue 2020-10-15 (EMCJ, MW, EST)