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Patent Searching and Data


Title:
ANTENNA DEVICE AND PORTABLE RADIO
Document Type and Number:
WIPO Patent Application WO/2013/088650
Kind Code:
A1
Abstract:
The present invention is provided with: a grounded conductor (2); a power-supply element (4), one end of which is grounded to the grounded conductor (2) via a power-supply unit (3); a ground-wire element (5), one end of which is grounded to the grounded conductor (2); and a switch (6) connected to the other end of the power-supply element (4) and the other end of the ground-wire element (5); and is configured such that when the switch (6) is off, the resonance frequency (f1) of the power-supply element (4) and the resonance frequency (f2) of the ground-wire element (5) are obtained, and when the switch (6) is on, the resonance frequency (f3) of an unbalanced loop is obtained.

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Inventors:
UEJIMA HIROYUKI
HIROBE TAKANORI
KOYANAGI YOSHIO
Application Number:
PCT/JP2012/007509
Publication Date:
June 20, 2013
Filing Date:
November 21, 2012
Export Citation:
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Assignee:
PANASONIC CORP (JP)
International Classes:
H01Q5/10; H01Q7/00; H01Q9/30
Foreign References:
JP2008543205A2008-11-27
EP2219265A12010-08-18
JP2009077440A2009-04-09
JPH10224135A1998-08-21
JP2009060169A2009-03-19
JPH1188246A1999-03-30
Attorney, Agent or Firm:
HASHIMOTO, Kimihide et al. (JP)
Kimihide Hashimoto (JP)
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Claims: