Title:
ANTENNA DEVICE, AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/124248
Kind Code:
A1
Abstract:
A radiator (100) is provided with radiation conductors (1, 2) forming a loop, a capacitor, an inductor (L1), and a feeding point (P1) disposed on radiation conductor (1). The capacitor is formed by means of the capacitance generated between the radiation conductors (1, 2) and the capacitance changes in accordance with the position on the radiation conductors (1, 2) in a section in which the radiation conductors (1, 2) become close to one another. The radiator (100) is configured such that: a first section containing the inductor (L1) and the capacitor and along the loop of the radiation conductors resonates at a lower resonance frequency (f1); and a second section which is a section containing the capacitor but not containing the inductor (L1) in a section along the loop of the radiation conductors and which contains a section extending between the feeding point (P1) and the inductor (L1) resonates at a higher resonance frequency (f2).
Inventors:
ASANUMA KENICHI
YAMAMOTO ATSUSHI
SAKATA TSUTOMU
KOZAKI KENICHI
YAMAMOTO ATSUSHI
SAKATA TSUTOMU
KOZAKI KENICHI
Application Number:
PCT/JP2012/000615
Publication Date:
September 20, 2012
Filing Date:
January 31, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
ASANUMA KENICHI
YAMAMOTO ATSUSHI
SAKATA TSUTOMU
KOZAKI KENICHI
ASANUMA KENICHI
YAMAMOTO ATSUSHI
SAKATA TSUTOMU
KOZAKI KENICHI
International Classes:
H01Q5/10; H01Q7/00; H01Q9/04; H01Q9/30; H01Q21/28
Foreign References:
| JP2009111999A | 2009-05-21 | |||
| JP2010050548A | 2010-03-04 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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Claims: