COMPOSITE MAGNETIC BODY FOR RFID AND ANTENNA EQUIPMENT FOR RFID

Title:

COMPOSITE MAGNETIC BODY FOR RFID AND ANTENNA EQUIPMENT FOR RFID

Document Type and Number:

Japanese Patent JP2007012689

Kind Code:

A

Abstract:

To provide a composite magnetic body for RFID, which is designed in such a way that electro-static charge in the composite magnetic body does not occur, namely, appropriate conductivity is given, and to provide antenna equipment for RFID with little fluctuation of a resonance frequency by static electricity.

Antenna equipment for RFID is provided with an antenna substrate 1 and the composite magnetic body for RFID 10. In the antenna substrate 1, a good conductor antenna pattern 3 becoming a loop-like antenna is formed on one face of an insulating substrate 2. The composite magnetic body for RFID 10 comprises at least soft magnetic metal powder and binder, and volume resistivity is 1,000 Ω cm or below.

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Inventors:

TANAKA TAKASHI
ODA MITSURU
KURIHARA HIROSHI

Application Number:

JP2005188416A

Publication Date:

January 18, 2007

Filing Date:

June 28, 2005

Export Citation:

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Assignee:

TDK CORP

International Classes:

H01F1/26; H01F1/14; H01F1/147; H01F27/00; H01Q1/52; H01Q7/00

Attorney, Agent or Firm:

Takashi Murai

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