Title:
COMPOSITE ANTENNA AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/119215
Kind Code:
A1
Abstract:
A composite antenna (101) is provided with: a first coil antenna (L1) having a first coil conductor (10); and a second coil antenna (L2) having a second coil conductor (20) and a second loop-shaped adjustment conductor (21). The first coil conductor (10) is wound clockwise, and the second coil conductor (20) is wound counterclockwise. The second loop-shaped auxiliary conductor (21) is wound in the direction reverse to the winding direction of the second coil conductor (20). A first end of the second loop-shaped auxiliary conductor (21) is connected to a first end of the second coil conductor (20). The second coil conductor (20) is disposed in a coil opening of the first coil conductor (10). The second loop-shaped auxiliary conductor (21) is disposed in the coil opening of the first coil conductor (10), said second loop-shaped auxiliary conductor being disposed outside of a region where the second coil conductor (20) is formed. The inductance of the second loop-shaped auxiliary conductor (21) is smaller than that of the second coil conductor (20).
Inventors:
OZAWA MASAHIRO (JP)
Application Number:
PCT/JP2016/085270
Publication Date:
July 13, 2017
Filing Date:
November 29, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q1/52; H01F17/04; H01F38/14; H01Q1/24; H01Q7/00; H02J50/10; H04B5/02
Foreign References:
| JP2013138404A | 2013-07-11 | |||
| JPS63502394A | 1988-09-08 | |||
| JP2004110854A | 2004-04-08 | |||
| JPH0998014A | 1997-04-08 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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