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Composite RF tag and tool provided with the composite RF tag

A tag and antenna technology, applied in the field of composite RF tags and tools provided with the composite RF tags, can solve the problems of RF tag resonance frequency deviation, reduced communication characteristics, and increased dielectric constant, etc., to achieve the effect of strong external influences

Active Publication Date: 2014-09-03
TODA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, in RF tags that receive and transmit by electromagnetic induction, it is known that the resonance frequency of the RF tag deviates due to the influence of surrounding water, that is, the dielectric constant around the RF tag increases, and the communication characteristics decrease.

Method used

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  • Composite RF tag and tool provided with the composite RF tag
  • Composite RF tag and tool provided with the composite RF tag
  • Composite RF tag and tool provided with the composite RF tag

Examples

Experimental program
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Embodiment

[0104] Hereinafter, the present invention will be described in detail based on embodiments of the invention while referring to the drawings, but the present invention is not limited to these examples.

[0105] [RF tag 1]

[0106] As a magnetic layer, after sintering at 900°C, use a ball mill to mix: Ni-Zn-Cu ferrite calcined powder (Fe 2 o 3 48.5 mol%, NiO 25 mol%, ZnO 16 mol%, CuO 10.5 mol%) 100 parts by weight, 8 parts by weight of butyral resin, 5 parts by weight of plasticizer, 80 parts by weight of solvent. . The prepared slurry was formed into a sheet of 150 mm square on a PET film with a doctor blade, and the thickness during sintering was 0.1 mm.

[0107] In addition, as an insulating layer, similarly mixed with a ball mill: Zn-Cu ferrite calcined powder (Fe 2 o 3 48.5 mol%, ZnO 41 mol%, CuO 10.5 mol%) 100 parts by weight, butyral resin 8 parts by weight, plasticizer 5 parts by weight, and solvent 80 parts by weight to prepare a slurry. The prepared slurry was fo...

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Abstract

The present invention relates to a composite RF tag for receiving and sending information by means of electromagnetic induction, the composite RF tag includes a magnetic antenna mounted with an IC and a resin layer formed around the magnetic antenna, the magnetic antenna is formed as follows: The core part made of a magnetic body is the center, and the electrode material is in the form of a coil. The RF tag of the present invention is formed in such a way that its magnetic antenna is surrounded by resin, so that the influence of surrounding moisture or metal is minimized in terms of tool or component management, and there is no need to worry about damage or cracking.

Description

technical field [0001] The present invention relates to a composite RF tag for information communication using a magnetic field component, and provides a composite RF tag that suppresses the influence of surrounding moisture on communication characteristics by forming a resin around a magnetic antenna on which an IC is mounted. It is a composite magnetic RF tag that minimizes the impact of the surrounding metal on the communication characteristics, and does not have to worry about damage or cracking of the RF tag. Background technique [0002] Antennas that use magnetic materials to transmit and receive electromagnetic waves (hereinafter referred to as "magnetic material antennas") are formed by winding a wire around a core (magnetic material) to form a coil, and the magnetic field components flying from the outside pass through the magnetic material to form a coil. An antenna that senses in a loop and converts it into a voltage (or current), widely used in small radios and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/40G06K19/07G06K19/077H01F17/00H01Q1/04H01Q1/24H01Q7/08
CPCG06K19/07749H01Q1/04G06K19/07728H01F27/022H01Q7/08H01Q1/40G06K19/07722H01F17/0033H01Q1/2225G06K19/077
Inventor 香嶋纯土井孝纪木村哲也佐藤由郎
Owner TODA IND