Presentation 2015-07-10
Validation Factor with Moment Method and Neumann's Formula by Large Loop Antenna System
Yuki Naito, Masataka Midori, Hiroshi Kurihara, Atsuhiro Nishikata, Katsumi Fujii, Takashi Shinozuka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Large loop antenna system is one of the radiated emission test methods for induction cooking appliances and electrical lights below 30 MHz. The CISPR16-1-4 defines validation factor to confirm the compatibility of radiated emission measured with the large loop antenna system, and permits ±2dB from validation factor. In the CISPR, validation factor is calculated with assuming that transmitting antenna is a magnetic dipole, and the size of transmitting antenna is not considered. This assumption leads to the error of validation factor, resulting the validation test to fail. In this technical report, we proposed an improved calculation method of validation factor using Neumann formula and the method of moment, and confirmed its adequacy. By examining in detail, we proposed new validation factor. Furthermore, we reported the results of the validation factors measured with some large loop antennas.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Large Loop Antenna System / Validation Factor / Moment Method / Neumann’s Formula
Paper # EMCJ2015-44,EMD2015-21
Date of Issue 2015-07-03 (EMCJ, EMD)

Conference Information
Committee EMCJ / EMD
Conference Date 2015/7/10(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) Discharge, Electronic Packaging, EMC
Chair Hideaki Sone(Tohoku Univ.) / Junya Sekikawa(Shizuoka Univ.)
Vice Chair Osami Wada(Kyoto Univ.) / Yoshiteru Abe(NTT)
Secretary Osami Wada(Okayama Univ.) / Yoshiteru Abe(Hitachi)
Assistant Atsuhiro Takahashi(Toyota Central R&D Labs.) / Yoshiki Kayano(Akita Univ.) / Shinichi Wada(TMC system)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility / Technical Committee on Electromechanical Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Validation Factor with Moment Method and Neumann's Formula by Large Loop Antenna System
Sub Title (in English)
Keyword(1) Large Loop Antenna System
Keyword(2) Validation Factor
Keyword(3) Moment Method
Keyword(4) Neumann’s Formula
1st Author's Name Yuki Naito
1st Author's Affiliation TDK Corporation(TDK Co.Ltd)
2nd Author's Name Masataka Midori
2nd Author's Affiliation TDK Corporation(TDK Co.Ltd)
3rd Author's Name Hiroshi Kurihara
3rd Author's Affiliation TDK Corporation(TDK Co.Ltd)
4th Author's Name Atsuhiro Nishikata
4th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
5th Author's Name Katsumi Fujii
5th Author's Affiliation National Institute of Information and Communications Technology(NICT)
6th Author's Name Takashi Shinozuka
6th Author's Affiliation National Institute of Information and Communications Technology(NICT)
Date 2015-07-10
Paper # EMCJ2015-44,EMD2015-21
Volume (vol) vol.115
Number (no) EMCJ-134,EMD-135
Page pp.pp.1-6(EMCJ), pp.1-6(EMD),
#Pages 6
Date of Issue 2015-07-03 (EMCJ, EMD)