Presentation 2013-07-11
FDTD Analysis and Measurement of Near Electromagnetic Field Radiation from LED Bulb and Power Line
Yukiya SAITO, Takashi KASUGA, Hiroshi INOUE,
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Abstract(in English) Electromagnetic noise radiated from inverter circuit in the LED bulb influences to communication systems. In this paper, to make clear the electromagnetic noise radiated from the LED bulb and the power supply line, the electromagnetic distribution is calculated by FDTD method and measured by experiment. The near electric field around the LED bulb available in the market is measured by monopole antenna. It is revealed that it is possible to evaluate to noise level from measurement of the near electric field by monopole antenna. The near magnetic field is only measured above the power supply line, but not around the LED bulb. It means that the electromagnetic noise is radiated from common mode current flowing into the power supply line. From FDTD analysis result, the power supply line and the LED bulb radiate the electromagnetic field as the electrical type antenna. The noise evaluation for the electromagnetic noise radiated from LED is necessary to measure the electric field.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) LED bulb / switching noise / near electric field / FDTD method
Paper # EMCJ2013-38
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Conference Information
Committee EMCJ
Conference Date 2013/7/4(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) FDTD Analysis and Measurement of Near Electromagnetic Field Radiation from LED Bulb and Power Line
Sub Title (in English)
Keyword(1) LED bulb
Keyword(2) switching noise
Keyword(3) near electric field
Keyword(4) FDTD method
1st Author's Name Yukiya SAITO
1st Author's Affiliation Nagano National College of Technology()
2nd Author's Name Takashi KASUGA
2nd Author's Affiliation Nagano National College of Technology
3rd Author's Name Hiroshi INOUE
3rd Author's Affiliation Akita Study Center, The Open University of Japan
Date 2013-07-11
Paper # EMCJ2013-38
Volume (vol) vol.113
Number (no) 122
Page pp.pp.-
#Pages 6
Date of Issue