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Patent Searching and Data


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:
伊藤 宏充
久保 浩行
用水 邦明
Application Number:
JP2006237272A
Publication Date:
November 28, 2007
Filing Date:
September 01, 2006
Export Citation:
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Assignee:
株式会社村田製作所
International Classes:
H01Q7/08; H01Q1/38
Domestic Patent References:
JP2005210223A
JP2002207981A
JP2005277524A
JP11122146A
JP2003318634A
JP2004166175A
JP2001034726A
JP2004153463A
JP3607217B2
JP2004038702A
JP2006050522A
Attorney, Agent or Firm:
小森 久夫