屋内広帯域電力線搬送通信による漏洩電波(1) : 遠方での電界強度測定とコモンモード電流の直接測定  [in Japanese] Leaked Emissions due to the In-House Broadband Powerline Communications (1) : Measurements of the Electric Field Strength at a Distance and Direct Measurements of the Common-Mode Current  [in Japanese]

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Author(s)

Abstract

日本の屋内広帯域電力線搬送通信(PLC)を使用した際の、これまでの漏洩電界の実測データは、家屋の外壁からの離隔距離が10m以内のものばかりであり、それより遠方での実測例は知られていない.我々は、離隔距離をより長く取った場合の漏洩電波を測定し、離隔距離30mで周囲雑音を20dB以上超過する場合があることを見いだした.また、このような漏洩を生じる原因と考えられる屋内電力線上のコモンモード電流値を直接測定し、PLC技術基準の許容値を20dB以上超過する場合があることを見いだした.

Measurements on the leaked electric field, when the in-house broadband power line communication (PLC) devices are in use, have so far been made with the separation distance not exceeding 10m. We measured the field strength farther than 10m, that has not been known, and found cases that the field strength exceeds the ambient noise by more than 20dB at the separation distance of 30m. We also made "direct" measurements on the common mode current (CMI) "on" the in-house power line, that has been regarded as the source of the leaked field, and found cases that the CMI exceeds the CMI limit for the Japanese PLC devices by more than 20dB.

Journal

  • IEICE technical report

    IEICE technical report 109(185), 29-34, 2009-08-28

    The Institute of Electronics, Information and Communication Engineers

References:  14

Cited by:  3

Codes

  • NII Article ID (NAID)
    110007387422
  • NII NACSIS-CAT ID (NCID)
    AN10013108
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09135685
  • NDL Article ID
    10390826
  • NDL Source Classification
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL Call No.
    Z16-940
  • Data Source
    CJP  CJPref  NDL  NII-ELS 
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