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

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...

AI Technical Summary

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 separation of the magnetic media and the NFC system is not conducive to the precise regulation of the performance of the coil antenna in the NFC system by the magnetic media, and the role of the magnetic media cannot be fully utilized; in addition, the magnetic media in the NFC system This non-integrated form in the NFC system makes the application of magnetic media in the NFC system costly and bulky, which is not conducive to the miniaturization of the device.

The above factors limit the wide application of magnetic media in NFC.

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