Presentation 2016-12-16
Theoretical study of EUT setup in the LAS measurement
Takashi Shinozuka, Katsumi Fujii, Akira Sugiura, Osami Wada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In the frequency range below 30MHz, radio disturbances generated by an EUT are measured with a LAS consisting of three large loop antennas of about 2m or more in diameter. The LAS characteristics and the influences of EUT size, EUT setup, and connected line layout are theoretically investigated by numerical simulation using NEC2 and FEKO. It is found that, for achieving a measurement reproducibility within +/-3dB, the size of an EUT (magnetic source) is limited to less than 1m in dia. On the other hand, the LAS measurement is difficult to apply to an EUT of electric source, because measurement results greatly vary (more than 15 dB) with the EUT position even in an area of 1m dia. The imbalance current flowing on the EUT power line and/or signal lines extended outside the LAS are found to cause considerable influences to the LAS measurement.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) LAS / LLA / EM-field simulation / differential/common-mode current / EMC measurement
Paper # EMCJ2016-105
Date of Issue 2016-12-09 (EMCJ)

Conference Information
Committee EMCJ / IEE-EMC
Conference Date 2016/12/16(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Nagoya Institute of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Power electronics, Biomedical EMC, EMC
Chair Hideaki Sone(Tohoku Univ.) / Ken Kawamata(Tohoku-gakuin Univ.)
Vice Chair Osami Wada(Kyoto Univ.)
Secretary Osami Wada(AIST) / (Hitachi Automotive Systems)
Assistant Yoshiki Kayano(Univ. of Electro-Comm.) / Yusaku Katsube(Hitachi) / Chie Sasaki(Panasonic) / Yu-ichi Hayashi(Tohoku-gakuin Univ.)

Paper Information
Registration To 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) Theoretical study of EUT setup in the LAS measurement
Sub Title (in English)
Keyword(1) LAS
Keyword(2) LLA
Keyword(3) EM-field simulation
Keyword(4) differential/common-mode current
Keyword(5) EMC measurement
1st Author's Name Takashi Shinozuka
1st Author's Affiliation National Institute of Information and Communications Technology(NICT)
2nd Author's Name Katsumi Fujii
2nd Author's Affiliation National Institute of Information and Communications Technology(NICT)
3rd Author's Name Akira Sugiura
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
4th Author's Name Osami Wada
4th Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2016-12-16
Paper # EMCJ2016-105
Volume (vol) vol.116
Number (no) EMCJ-370
Page pp.pp.31-36(EMCJ),
#Pages 6
Date of Issue 2016-12-09 (EMCJ)