Contact conditions in connectors that cause common mode radiation

Yu Ichi Hayashi, Yoshiki Kayano, Takaaki Mizuki, Hideaki Sone, Hiroshi Inoue

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


When contact failure occurs in a connector in a coaxial high-frequency (HF) signal transmission line, it is well known that common-mode (CM) radiation occurs on the line. We focus on contact conditions in a connector causing such CM radiation. Experiments and simulations verify that CM radiation increases as the contact resistance increases. While the CM current strongly depends on the distribution pattern of contact resistances at a low resistance, the CM current does not depend on these pattern at a high resistance. Our results indicate that it is important to maintain a symmetrical distribution of contact spots whenever the number of such spots is four or more.

Original languageEnglish
Pages (from-to)1369-1374
Number of pages6
JournalIEICE Transactions on Electronics
Issue number9
Publication statusPublished - 2011 Sep


  • Cable television internet
  • Coaxial transmission line
  • Common-mode current
  • Contact failure
  • Electromagnetic interference

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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