ANTENNA COIL AND ANTENNA UNIT - MURATA MANUFACTURING CO

Title:

ANTENNA COIL AND ANTENNA UNIT

Document Type and Number:

WIPO Patent Application WO/2008/053631

Kind Code:

A1

Abstract:

An antenna coil (100) is constituted by winding a flexible substrate (104) around a magnetic body core (102). A receiving coil (106) consisting of a first receiving coil portion (107a) and a second receiving coil portion (107b) of reversed winding direction, and a transmission coil (108) consisting of a first transmission coil portion (109a) and a second transmission coil portion (109b) of reversed winding direction are formed on the flexible substrate (104). The region for forming the receiving coil (106) and the region for forming the transmission coil (108) are overlapping at least partially in the plan view, and the portions between the first coil portions (107a, 109a) and the second coil portions (107b, 109b) in each of the coils (106, 108) are portions (110) where a coil is not wound.

Inventors:

KUBO HIROYUKI (JP)
ITO HIROMITSU (JP)
YOSUI KUNIAKI (JP)
SAKURADA KIYOYASU (JP)
KASAI MASANORI (JP)

Application Number:

PCT/JP2007/066609

Publication Date:

May 08, 2008

Filing Date:

August 28, 2007

Export Citation:

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Assignee:

MURATA MANUFACTURING CO (JP)
KUBO HIROYUKI (JP)
ITO HIROMITSU (JP)
YOSUI KUNIAKI (JP)
SAKURADA KIYOYASU (JP)
KASAI MASANORI (JP)

International Classes:

H01Q7/08

Foreign References:

JPH11225097A	1999-08-17
JP2001085931A	2001-03-30
JPH054325Y2	1993-02-03
JP2006138684A	2006-06-01
JP2003264423A	2003-09-19
JP2005151431A	2005-06-09
JPH0364105A	1991-03-19
JP2001517406A	2001-10-02

Other References: