Title:
IMPEDANCE CONVERSION CIRCUIT AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/050552
Kind Code:
A1
Abstract:
A first coil element is constituted by a first loop-shaped conductor (LP1) and a second loop-shaped conductor (LP2). A second coil element is constituted by a third loop-shaped conductor (LP3) and a fourth loop-shaped conductor (LP4). The first loop-shaped conductor (LP1) and the second loop-shaped conductor (LP2) are interposed between the third loop-shaped conductor (LP3) and the fourth loop-shaped conductor (LP4) in the layer direction. A conductor pattern (L1B), which comprises part of the first loop-shaped conductor (LP1), and a conductor pattern (L1C), which comprises part of the second loop-shaped conductor (LP2), are connected in parallel. Moreover, a conductor pattern (L1A), which comprises the remainder of the first loop-shaped conductor (LP1), and a conductor pattern (L1D), which comprises the remainder of the second loop-shaped conductor (LP2), are connected in series with respect to the aforementioned parallel circuit.
Inventors:
ISHIZUKA KENICHI (JP)
Application Number:
PCT/JP2013/074476
Publication Date:
April 03, 2014
Filing Date:
September 11, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q1/50; H01F27/42
Domestic Patent References:
| WO2012114983A1 | 2012-08-30 |
Foreign References:
| JP2012085306A | 2012-04-26 | |||
| JP2007188938A | 2007-07-26 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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