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Title:
ELECTROMAGNETIC COUPLER, AND INFORMATION COMMUNICATION DEVICE HAVING THE SAME
Document Type and Number:
Japanese Patent JP2012147119
Kind Code:
A
Abstract:

To provide an electromagnetic coupler which realizes a larger coupling range while having a coupling strength comparable to the strength achieved in the past, and an information communication device having the electromagnetic coupler.

The electromagnetic coupler comprises: a plurality of conductor patterns 2 formed in a first plane to be spaced away from each other; a ground pattern 3 formed in a second plane in parallel with the first plane, and grounded; a first linear conductor 4 formed perpendicularly to the first and second planes, having a length shorter than a quarter wavelength of a frequency used, and having one end connected to one of the conductor patterns 2, and arranged so that power is supplied from between the other end and the ground pattern 3; and a plurality of second linear conductors 5 formed perpendicularly to the first and second planes, having a length shorter than a quarter wavelength of the frequency used, connecting between each conductor pattern 2 and the ground pattern 3, and arranged in number so that at least one second linear conductor is formed for each conductor pattern 2.


Inventors:
SHIRAKAWA YOHEI
TERAKI NAOTO
FUJIMOTO KAZUHIRO
Application Number:
JP2011002421A
Publication Date:
August 02, 2012
Filing Date:
January 07, 2011
Export Citation:
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Assignee:
HITACHI CABLE FINE TECH LTD
International Classes:
H01Q9/30; H01Q1/38; H01Q9/40; H04B5/02
Domestic Patent References:
JP2007097115A2007-04-12
JPH06260815A1994-09-16
JP2008099236A2008-04-24
JPH04199903A1992-07-21
JP2008085908A2008-04-10
JP2004266500A2004-09-24
Attorney, Agent or Firm:
Nobuo Kinutani