Title:
ANTENNA DEVICE AND COMMUNICATIONS TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/014939
Kind Code:
A1
Abstract:
Disclosed are an antenna device and a communications terminal device with great freedom of radiation plate shape, no requirement for high positioning precision in the positional relationship between radiation plates and coil conductors, and little susceptibility to influence from metal items in the vicinity, wherein: a current (i10) is induced to a first booster conductor (41) by a current (i0) that flows to a coil conductor in a power-feed antenna (30) and said current (i10) flows around the first booster conductor (41); a current (i2) is induced to a second booster conductor (42) by the current (i0) that flows to the coil conductor in the power-feed antenna (30) and said current (i2) flows around the second booster conductor (42); and a current (i12) is induced to the first booster conductor (41) by the current (i2) that flows to the second booster conductor (42) and said current (i12) flows around the first booster conductor (41).
More Like This:
Inventors:
YOSUI KUNIAKI (JP)
Application Number:
PCT/JP2011/067127
Publication Date:
February 02, 2012
Filing Date:
July 27, 2011
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
YOSUI KUNIAKI (JP)
YOSUI KUNIAKI (JP)
International Classes:
H01Q7/00; H01Q1/00; H04M1/02
Domestic Patent References:
| WO2009142114A1 | 2009-11-26 |
Foreign References:
| JP2008197714A | 2008-08-28 | |||
| JP2009065426A | 2009-03-26 |
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)
Download PDF:
Claims: