Title:
RADIO COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/050278
Kind Code:
A1
Abstract:
Provided is a radio communication device which can achieve matching to an arbitrary load impedance and widen the operating frequency band even if the input impedance of an IC chip cannot be freely selected. The radio communication device is provided with a first conductor (ground conductor (1)), a second conductor (2) disposed nearly parallel to the first conductor (1), a hole (slot (3)) formed in the second conductor (2), capacitive coupling means (4a, 4b) disposed near the hole, and a communication circuit (IC chip (5)) having at least one of a radio wave transmitting function or receiving function. The communication circuit is connected between two portions on the second conductor (2) near a boundary line between the conductor and the hole by means of the capacitive coupling means (4a, 4b).
Inventors:
YANAGI TAKASHI (JP)
NISHIOKA YASUHIRO (JP)
FUKASAWA TORU (JP)
MIYASHITA HIROAKI (JP)
MIZUNO TOMOHIRO (JP)
SASAKI TAKURO (JP)
OKEGAWA HIROKATSU (JP)
NISHIOKA YASUHIRO (JP)
FUKASAWA TORU (JP)
MIYASHITA HIROAKI (JP)
MIZUNO TOMOHIRO (JP)
SASAKI TAKURO (JP)
OKEGAWA HIROKATSU (JP)
Application Number:
PCT/JP2009/063100
Publication Date:
May 06, 2010
Filing Date:
July 22, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
YANAGI TAKASHI (JP)
NISHIOKA YASUHIRO (JP)
FUKASAWA TORU (JP)
MIYASHITA HIROAKI (JP)
MIZUNO TOMOHIRO (JP)
SASAKI TAKURO (JP)
OKEGAWA HIROKATSU (JP)
YANAGI TAKASHI (JP)
NISHIOKA YASUHIRO (JP)
FUKASAWA TORU (JP)
MIYASHITA HIROAKI (JP)
MIZUNO TOMOHIRO (JP)
SASAKI TAKURO (JP)
OKEGAWA HIROKATSU (JP)
International Classes:
G06K19/07; H04B5/02; G06K19/077; H01Q1/38; H01Q5/335; H01Q5/378; H01Q13/10
Domestic Patent References:
| WO2007102360A1 | 2007-09-13 |
Foreign References:
| JP2008538029A | 2008-10-02 | |||
| JP2008066838A | 2008-03-21 | |||
| JP2002358494A | 2002-12-13 | |||
| JP2005510886A | 2005-04-21 | |||
| JPH1098329A | 1998-04-14 | |||
| JP2007243296A | 2007-09-20 |
Other References:
APISAK ITTIPIBOON ET AL.: "A Model Expansion Method of Analysis and Measurement on Aperture-CoupledMicrostrip Antenna", IEEE TRANS. ANTENNAS AND PROPAGAT., vol. 39, no. 11, 1991, pages 1567 - 1574
See also references of EP 2343834A4
See also references of EP 2343834A4
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
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