Investigation of Noise Interference due to Connector Contact Failure in a Coaxial Cable

Yu-ichi HAYASHI  Takaaki MIZUKI  Hideaki SONE  

IEICE TRANSACTIONS on Electronics   Vol.E97-C   No.9   pp.900-903
Publication Date: 2014/09/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E97.C.900
Type of Manuscript: BRIEF PAPER
contact failure,  loose contact,  electromagnetic interference,  

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Increased inductance values and contact resistance in connector contact surfaces due to degradation of connector contact performance have been reported. In particular, inductance increases while degradation remains minimal. We focus on slight loosening in which increased inductance values are observed without increased resistance values, and investigate the effect of loose connectors on transmission line coupling noise under such circumstances. We find a proportional relation between coupled noise current and frequency. Moreover, we find a proportional relation between the increased inductance value, which depends on the change in connector contact distribution, and the coupled noise current in the transmission line.