CN217690109U

CN217690109U - Ultrahigh frequency dual-frequency anti-metal RFID (radio frequency identification) tag

Info

Publication number: CN217690109U
Application number: CN202221531687.8U
Authority: CN
Inventors: 李海
Original assignee: Taixin Intelligent Technology Kunshan Co ltd
Current assignee: Taixin Intelligent Technology Kunshan Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-28
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses an anti metal RFID label of hyperfrequency dual-frenquency, its top-down includes printable plane materiel, antenna and chip layer, flexible insulating substrate, conductive media layer, industry double faced adhesive tape in proper order and leaves type paper, flexible insulating substrate handle antenna and chip reach conductive media layer keeps apart and forms decoupling zero structure, its characterized in that: the antenna and chip layer comprises an NFC coil antenna and an RFID tag antenna which are arranged on an insulating carrier, and pins of the NFC coil antenna and pins of the RFID tag antenna are communicated with pins of a tag chip to be integrated. In this way, the utility model discloses both realized the far reading distance of hyperfrequency RFID label, realized the near reading distance of NFC again, encryption nature good characteristic has the anti-metal characteristic simultaneously, and application range is wide.

Description

Ultrahigh frequency dual-frequency anti-metal RFID (radio frequency identification) tag

Technical Field

The utility model relates to an electronic tags technical field especially relates to an anti metal RFID label of hyperfrequency dual-frenquency.

Background

The ultra high frequency radio frequency identification (UHF RFID) technology has the characteristics of capability of reading a plurality of tags at one time, strong penetrability, repeated reading and writing, large data storage capacity, low cost, small volume, convenience in use, high reliability, long service life and the like, and is widely applied to various industries, such as fixed asset management, management in storage and logistics transportation, article or vehicle supervision and management of customs and the like.

The ultrahigh frequency electronic tag is widely applied and has various environments, many managed objects are metal objects, such as automobiles, containers, computers, metal goods shelves and the like, however, when the ordinary wireless radio frequency tag is placed on a metal surface, the reading distance of the wireless radio frequency tag is greatly reduced, and even the wireless radio frequency tag cannot be read.

Near Field Communication (NFC), an emerging technology, is a technology that devices using NFC technology can exchange data when they are close to each other, such as mobile phones, which are integrated and evolved from non-contact Radio Frequency Identification (RFID) and interconnection and interworking technologies, and by integrating the functions of an inductive card reader, an inductive card and point-to-point Communication on a single chip, applications such as mobile payment, electronic ticketing, door access, mobile identity recognition, anti-counterfeiting, etc. are implemented using a mobile terminal.

The NFC technology has extremely high safety, performance advantages in short-distance communication and more importantly low cost, the NFC is widely applied to asset management, access control management and anti-counterfeiting management, however, the reading distance of the NFC is generally less than 10 cm, the short board also limits the application scene of the NFC, and the ultrahigh-frequency RFID tag has a long reading distance which can reach more than 20 meters, and the advantages can make up for the short board of the NFC.

In a real use scene, the reading distance of the ultrahigh frequency anti-metal tag can be used for asset checking, warehousing and tracking management, but due to the fact that the reading distance is long, adjacent product information is easy to be misread during asset information maintenance, and the short reading distance of the NFC can make up for the defect, so that the short plates between the NFC and the ultrahigh frequency anti-metal RFID tag can be made up for each other in use, and meanwhile, some application scenes are increased.

The existing RFID label is mostly a single ultrahigh frequency anti-metal RFID label or a single NFC label, and the NFC label is pasted beside the ultrahigh frequency RFID label on the market, so that the defects of the prior art scheme are as follows: the single ultrahigh frequency RFID tag has long reading distance and is easily influenced by the surrounding ultrahigh frequency RFID tags during information maintenance; the reading distance of a single NFC label is short, the reading distance is only within 10 cm, the efficiency is low when the NFC label is checked in batches and put in and out of a warehouse, and the NFC label needs to be read in a proximity mode; in the existing scheme, a pre-made NFC label is mostly adhered beside an ultrahigh frequency label, so that a dual-frequency effect is achieved, but in the production process, an NFC antenna and an ultrahigh frequency antenna need to be produced separately, two independent chips are needed, the production efficiency is low, and the cost is high; non-metal-resistant NFC and ultrahigh frequency dual-frequency RFID tags are available on the market, but the using environment is only a non-metal environment, the managed object cannot be used when being metal, and most industrial environments are metal.

Based on the defects and shortcomings, the prior art needs to be improved, and an ultrahigh frequency dual-frequency metal-resistant RFID tag is designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an anti metal RFID label of hyperfrequency dual-frenquency, has both realized the far reading distance of hyperfrequency RFID label, has realized the near reading distance of NFC again, and the encryption nature is good characteristic has anti metal characteristic simultaneously, and application range is wide.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an anti metal RFID label of hyperfrequency dual-frenquency, its top-down includes printable plane materiel, antenna and chip layer, flexible insulating substrate, conducting medium layer, industry double faced adhesive tape and release paper in proper order, flexible insulating substrate will antenna and chip reach the conducting medium layer is kept apart and is formed decoupling structure, antenna and chip layer are including arranging NFC coil antenna, the RFID label antenna on the insulating carrier in, the pin and the switch-on of label chip pin of NFC coil antenna and RFID label antenna are fused as an organic whole, the label chip adopts and is connected to NFC coil antenna and RFID label antenna for falling the mode of encapsulation, SMT or line binding on.

Preferably, the NFC coil antenna is a double-sided conductor layer, and includes a bottom antenna, a top antenna, and a conductor that conductively connects the bottom antenna and the top antenna; the RFID tag antenna is a single-sided conductor layer, and the NFC coil antenna and the RFID tag antenna are made of conductive materials, including copper, iron, graphite, carbon or silver.

Preferably, the thickness of the conductor layer is less than or equal to 0.01mm.

Preferably, the printing surface material is flexible printable material of PET, PP, PC and coated paper.

Preferably, the flexible insulating base material is PE closed-cell foam cotton with the thickness of 0.7mm, or the flexible insulating base material is flexible coiled material or sheet material made of EVA, silica gel, PP and PET.

Preferably, the conductive medium layer is made of aluminum foil, copper foil, printed silver layer or graphene flexible material with PET as a base material, the thickness of the PET base material is 0.05mm, and the thickness of the conductive layer is 0.01mm.

Preferably, the industrial double-sided adhesive tape is made of acrylic non-base material double-sided adhesive tape, foam adhesive tape, base material double-sided adhesive tape or silica gel and has viscosity.

Compared with the prior art, the beneficial effects of the utility model are that:

the ultra-high frequency far reading distance and the near reading distance of NFC are realized by adopting one chip, and the characteristics of high safety are realized;

the NFC and the ultrahigh frequency antenna are integrated, two kinds of antennas can be produced by one-time production, and the production process flow is simple;

the NFC and ultrahigh frequency antenna can be produced by using one chip and only needing one-time surface mounting process, so that the production cost is greatly saved;

the flexible printing can be realized, and the marks such as bar codes, numbers, characters, images and the like can be printed on the surface of the product by a printer;

the conductive medium layer and the adhered metal surface can be used as a grounding layer of the electronic tag, so that the anti-metal effect is achieved, the conductive medium layer is used as a part of the electronic tag, the influence caused by different metal materials of the adhered surface is eliminated, the stability of the anti-metal is further improved, the anti-metal characteristic is achieved, the anti-metal tag can be applied to the metal surface and the non-metal surface, and the application range is wide;

the product is thin and has good flexibility, and can be stuck to a curved object.

Drawings

Fig. 1 is a schematic structural diagram of an ultrahigh frequency dual-frequency anti-metal RFID tag.

Fig. 2 is a schematic diagram of an antenna and a chip layer structure of an ultrahigh frequency dual-frequency anti-metal RFID tag.

Fig. 3 is a cross-sectional view of an antenna and a chip layer of an ultrahigh frequency dual-frequency anti-metal RFID tag.

Wherein, 1-printable facestock; 2-antenna and chip layers; 20-an insulating carrier; 21-NFC coil antenna; 211-bottom antenna; 212 a top antenna; 213-a conductor; 22-an RFID tag antenna; 23-a tag chip; 3-a flexible insulating substrate; 4-a conductive dielectric layer; 5-industrial double-sided adhesive tape; 6-release paper.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.

Referring to fig. 1 to 3, an embodiment of the present invention includes:

the utility model provides an anti metal RFID label of hyperfrequency dual-frenquency, its top-down of this kind of hyperfrequency dual-frenquency anti metal RFID label includes printable plane materiel 1, antenna and chip layer 2, flexible insulating substrate 3, conductive media layer 4, industry double faced adhesive tape 5 and from type paper 6 in proper order, flexible insulating substrate 3 will antenna and chip 2 and conductive media layer 4 keeps apart and forms decoupling zero structure, thereby impedance conjugation furthest's realization the reading distance of label, its characterized in that: the antenna and chip layer 2 comprises an NFC coil antenna 21 and an RFID tag antenna 22 which are arranged on an insulating carrier 20, pins of the NFC coil antenna 21 and the RFID tag antenna 22 are communicated with pins of a tag chip 23 to be integrated, the NFC coil antenna 21 and the RFID tag antenna 22 are provided with RF pins and GND pins, the tag chip 23 is provided with two groups of RF pins and GND pins which are communicated with the tag chip 23, the tag chip 23 is connected to the NFC coil antenna 21 and the RFID tag antenna 22 in a reverse packaging, SMT or wire binding mode, the NFC coil antenna and the RFID tag antenna are integrated into one antenna, the antenna is produced in one step in the production process, and one chip is adopted, so that the NFC and ultrahigh frequency performance can be realized only by one reverse packaging process.

The NFC coil antenna 21 is a double-sided conductor layer, and includes a bottom antenna 211, a top antenna 212, and a conductor 213 that electrically connects the bottom antenna 211 and the top antenna 212; the RFID tag antenna 22 is a single-sided conductor layer, and the NFC coil antenna 21 and the RFID tag antenna 22 are made of conductive materials, including copper, iron, graphite, carbon, silver, or the like; the thickness of the conductor layer is less than or equal to 0.01mm, so that the conductivity of the material can be ensured, and the characteristics of softness and bending can be achieved.

The printing surface material 1 is made of flexible printable materials such as PET, PP, PC and coated paper, the antenna and the chip layer 2 can be protected by the flexible printable materials, and black-white and color printing of identification such as bar codes, characters, numbers and images can be provided.

The flexible insulating substrate 3 adopts PE closed-cell foam cotton, the second layer of antenna and the conductive medium layer of the chip layer and the fourth layer are isolated, the thickness is 0.7mm, the flexible insulating substrate is characterized by being flexible, the coiled material is convenient for batch production, and the foam structure has good waterproof performance for the closed-cell structure, so that the influence of water vapor and moisture on the reading distance and frequency of the wireless radio frequency tag is avoided, the material is soft, and can play good protection for the chip and the antenna, or the flexible insulating substrate 3 adopts flexible coiled materials such as EVA, silica gel, PP and PET, and sheets and the like.

The conductive medium layer 4 is made of flexible materials such as aluminum foil, copper foil, printed silver layers or graphene and the like with PET as a base material, the thickness of the PET base material is 0.05mm, and the thickness of the conductive layer is 0.01mm, so that the conductive medium layer is conductive and has the characteristic of flexibility.

The industrial double-sided adhesive 5 is made of acrylic acid non-base material double-sided adhesive, foam cotton adhesive, base material double-sided adhesive, silica gel and other adhesive materials, can be used for adhering a radio frequency tag to a managed object, has high adhesion and can be applied to various surfaces.

The utility model relates to an anti metal RFID label of hyperfrequency dual-frenquency, both realized the far reading distance of hyperfrequency RFID label, realized the nearly reading distance of NFC again, the characteristic that encryption nature is good has anti metal characteristic simultaneously, application range is wide.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an anti metal RFID label of hyperfrequency dual-frenquency, its top-down includes printable plane materiel, antenna and chip layer, flexible insulating substrate, conductive media layer, industry double faced adhesive tape and from type paper in proper order, flexible insulating substrate will antenna and chip and conductive media layer keeps apart and forms decoupling zero structure, its characterized in that: the antenna and the chip layer comprise an NFC coil antenna and an RFID tag antenna which are arranged on an insulating carrier, pins of the NFC coil antenna and the RFID tag antenna are communicated with pins of the tag chip to be integrated, and the tag chip is connected to the NFC coil antenna and the RFID tag antenna in an inverted packaging, SMT or wire binding mode.

2. The UHF dual-frequency anti-metal RFID tag of claim 1, wherein: the NFC coil antenna is a double-sided conductor layer and comprises a bottom antenna, a top antenna and a conductor for conducting and connecting the bottom antenna and the top antenna; the RFID tag antenna is a single-sided conductor layer, and the NFC coil antenna and the RFID tag antenna are made of conductive materials, including copper, iron, graphite, carbon or silver.

3. The UHF dual-frequency anti-metal RFID tag of claim 2, wherein: the thickness of the conductor layer is less than or equal to 0.01mm.

4. The UHF dual-frequency anti-metal RFID tag of claim 1, wherein: the printing surface material is made of flexible printable materials such as PET, PP, PC and coated paper.

5. The UHF dual-frequency anti-metal RFID tag of claim 1, wherein: the flexible insulation substrate is PE closed-cell foam cotton with the thickness of 0.7mm, or flexible coiled materials or sheets made of EVA, silica gel, PP and PET.

6. The UHF dual-band anti-metal RFID tag of claim 1, wherein: the conductive medium layer is made of aluminum foil, copper foil, printed silver layer or graphene flexible material with PET as a base material, the thickness of the PET base material is 0.05mm, and the thickness of the conductive layer is 0.01mm.

7. The UHF dual-frequency anti-metal RFID tag of claim 1, wherein: the industrial double faced adhesive tape adopts acrylic acid non-base material double faced adhesive tape, foam adhesive tape, base material double faced adhesive tape or silica gel which are sticky.