Title:
WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/011856
Kind Code:
A1
Abstract:
A wireless communication device, which is small, and has a long communication distance and stable frequency characteristics, is obtained.
This wireless communication device is provided with: a planar radiation element that includes a loop portion (11) having one end portion (11a) and the other end portion (11b); a power supplying element (20), which includes a coil pattern (L1) connected to the one end portion (11a) of the loop portion (11); and a wireless IC element (30) connected to the coil pattern (L1). The coil pattern (L1) is disposed in the vicinity of the loop portion (11), and is wound such that a current (I1) that flows in the coil pattern (L1) and a current (I3) that flows in the loop portion (11) are in the same direction when power is supplied to the coil pattern (L1). The coil pattern (L1) and the loop portion (11) are connected in series, and are coupled with each other via a magnetic field.
Inventors:
KATO NOBORU (JP)
Application Number:
PCT/JP2012/067454
Publication Date:
January 24, 2013
Filing Date:
July 09, 2012
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
KATO NOBORU (JP)
KATO NOBORU (JP)
International Classes:
H04B5/02; G06K19/07; G06K19/077; H04B1/59
Foreign References:
| JP2004336604A | 2004-11-25 | |||
| JP2007068073A | 2007-03-15 | |||
| JP2011076567A | 2011-04-14 | |||
| JP2002245416A | 2002-08-30 | |||
| JP2007194924A | 2007-08-02 |
Attorney, Agent or Firm:
PROFIC PC (JP)
Patent business corporation pro フィック patent firm (JP)
Patent business corporation pro フィック patent firm (JP)
Download PDF:
Claims: