Title:
ANTENNA APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/021081
Kind Code:
A1
Abstract:
An antenna apparatus (101) is configured from: a substrate (40); various kinds of electrodes formed on the substrate (40); and a chip antenna (50) and circuit elements (62-66), said chip antenna and circuit elements being mounted on the substrate (40). The resonance frequency of a parasitic radiation electrode (48) is higher than the resonance frequency of 3/4 wavelength resonance of a first feeding radiation electrode, said 3/4 wavelength resonance being generated by means of electrodes (45, 46) and an electrode (53), and multiple resonances are generated with the two resonances. A circuit element (62) is connected in series to a power supply terminal (first end (P11)) of a feeding radiation electrode, and the coupling quantity of the two resonances is correctly specified with a value of the circuit element.
Inventors:
TAKAMURA AYUMI (JP)
KAMINISHI YUJI (JP)
KAMINISHI YUJI (JP)
Application Number:
PCT/JP2013/069097
Publication Date:
February 06, 2014
Filing Date:
July 12, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q5/10; H01Q1/38; H01Q21/30
Foreign References:
| JP2005150937A | 2005-06-09 | |||
| JP2003008326A | 2003-01-10 |
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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