Fundamental Measurement of Electromagnetic Field Radiated from a Coaxial Transmission Line Caused by Connector Contact Failure

Yu-Ichi Hayashi, Hideaki Sone

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

When contact failure occurs in a connector in a coaxial HF signal transmission line, an electromagnetic field is radiated around the line. We have measured the electromagnetic field and examined the characteristics of such radiation. The results show that the radiation is related to the contact resistance and the symmetry of the distribution of contact points at the connector. When contact resistance is low, radiation is observed at resonant frequencies related to the length of the transmission line. If a connector has axially asymmetric contact points, its radiation is higher thanthat when the contact points are symmetric. We show that if contact points in a connector are axially symmetrical with resistance lower than 0.25 Ω, the electromagnetic interference caused by the connector contact failure is as low as the background noise.

Original languageEnglish
Pages (from-to)1306-1312
Number of pages7
JournalIEICE Transactions on Electronics
VolumeE91-C
Issue number8
DOIs
Publication statusPublished - 2008 Aug

Keywords

  • CATV internet
  • Coaxial transmission line
  • Contact failure
  • Electromagnetic interference

ASJC Scopus subject areas

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

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