Communication transmission apparatus, communication coupler and impedance adjusting sheet
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United States of America Patent
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Mar 17, 2015
Grant Date -
Jun 21, 2012
app pub date -
Sep 1, 2010
filing date -
Sep 1, 2009
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Abstract
A technique is proposed for reducing leakage electromagnetic field that reduces the electromagnetic leakage from a connection point between a communication coupler and a signal transmission apparatus and that can conduct both communication and transmission of electric power. The signal transmission apparatus includes: a first sheet conductive body portion constituting a lower portion electrode; and a second sheet conductive body portion in a mesh shape which is laminated on the first sheet conductive body portion while a gap area is sandwiched therebetween and which includes an uneven mesh size area on which a sheet impedance is continuously changed.
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