Communication transmission apparatus, communication coupler and impedance adjusting sheet

摘要

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.

主权项

1. A signal transmission apparatus for communicating by propagating a signal as an electromagnetic field transmitted via a communication coupler, the signal transmission apparatus comprising:
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 comprises an uneven mesh size area on which a sheet impedance is continuously changed, wherein the uneven mesh size area comprises a plurality of mesh columns each including mesh holes of a uniform size, and the size of the mesh holes of each mesh column is gradually changed compared to neighboring mesh columns.