Title:
アンテナ装置
Document Type and Number:
Japanese Patent JP4013987
Kind Code:
B1
Abstract:
An antenna device having a magnetic core (2) to be surface-mounted on a circuit substrate (1) has a pair of coil portion (A) and a coil portion (B) formed apart from each other at a predetermined interval d. The coil portion (A) and the coil portion (B) are connected by a connecting conductor (6). An end of the magnetic core has a curved or bent portion curved toward the circuit substrate. This structure constitutes an RFID antenna device having the high receiving sensitivity that can be surface-mounted without increasing the thickness of a casing of a mobile electronic device.
Inventors:
Hiromitsu Ito
Hiroyuki Kubo
Water Kuniaki
Hiroyuki Kubo
Water Kuniaki
Application Number:
JP2006237272A
Publication Date:
November 28, 2007
Filing Date:
September 01, 2006
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01Q7/08; H01Q1/38
Domestic Patent References:
JP2005210223A | ||||
JP2002207981A | ||||
JP2005277524A | ||||
JP11122146A | ||||
JP2003318634A | ||||
JP2004166175A | ||||
JP2001034726A | ||||
JP2004153463A | ||||
JP3607217B2 | ||||
JP2004038702A | ||||
JP2006050522A |
Attorney, Agent or Firm:
Hisao Komori