Near field communication label integrated with magnetic composite membrane, and preparation method thereof

A technology of near-field communication and composite film, which is applied to recording carriers used in machines, instruments, computing, etc., can solve the problems of precise control of coil antenna performance, high application cost, unfavorable magnetic media, etc., and achieve superior electromagnetic performance and long-distance recognition Effect of distance, wide application

Inactive Publication Date: 2017-05-10
WUHAN UNIV
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Problems solved by technology

However, the application potential of magnetic media in near-field communication systems is far from being explored
First of all, the existing research only focuses on the shielding effect of the magnetic medium on the external metal, so that the magnetic medium can only be used in NFC systems with metal casings or metal objects, and the application range is limited; secondly, the existing research and applications are based on The influence of external magnetic media on the communication process of the NFC system, the separ

Method used

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  • Near field communication label integrated with magnetic composite membrane, and preparation method thereof
  • Near field communication label integrated with magnetic composite membrane, and preparation method thereof
  • Near field communication label integrated with magnetic composite membrane, and preparation method thereof

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Embodiment Construction

[0017] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0018] The present invention provides a near-field communication tag integrated with a magnetic composite film, in which the magnetic composite film is integrated in the middle of the coil antenna of the near-field communication tag. The near field communication tag coil antenna is a planar helical coil. The magnetic composite film is located in the blank area in the middle of the tag coil, and the outer edge of the magnetic composite film coincides with the inner edge of the coil antenna. The magnetic composite film is printed on the NFC label by a printing...

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Abstract

The present invention discloses a near field communication label integrated with a magnetic composite membrane, and a preparation method thereof. The magnetic composite membrane comprises magnetic nano particles and a polymer and is integrated in the middle of a coil antenna of the NFC label by printing. Compared with the NFC label without the magnetic composite membrane, the NFC label with the magnetic composite membrane has the advantages that an inductance value L and a quality factor Q of the antenna are improved remarkably, particularly, a communication distance between an NFC reader and the NFC label is extended greatly. Further, the NFC label with the magnetic composite membrane has the characteristics of being light, thin and flexible, and is particularly suitable for wearable electronic devices. The NFC label has the advantages of simple integration technology, low cost, and superior electromagnetic performance, and has high application value in the field of near field communication.

Description

technical field [0001] The invention belongs to the technical field of near-field communication, and relates to a near-field communication label and a preparation method thereof, in particular to a near-field communication label integrated with a magnetic composite film and a preparation method thereof. Background technique [0002] Near Field Communication (NFC) is a non-contact identification and interconnection technology that enables short-range wireless communication between mobile devices, consumer electronics, computers and smart control tools. With the development of wireless communication technology, more and more daily electronic devices such as smartphones, laptops, etc. begin to support NFC function, and its application is becoming more and more extensive, involving banking, military, medical, transportation and entertainment industries, affecting all aspects Follow people's lives. [0003] How to improve near-field communication quality and recognition distance...

Claims

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Application Information

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IPC IPC(8): G06K19/077
CPCG06K19/0772G06K19/07718G06K19/07749
Inventor 占必红刘锋刘胜苏丹廖道坤
Owner WUHAN UNIV
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