CN215642771U

CN215642771U - High-consistency RFID tag suitable for EAS

Info

Publication number: CN215642771U
Application number: CN202122128458.3U
Authority: CN
Inventors: 孙升琦
Original assignee: Shang Yang Rfid Technology Yangzhou Co ltd
Current assignee: Shang Yang Rfid Technology Yangzhou Co ltd
Priority date: 2021-09-05
Filing date: 2021-09-05
Publication date: 2022-01-25
Anticipated expiration: 2031-09-05

Abstract

High uniformity is suitable for EAS RFID tags. The RFID tag is simple in structure, high in consistency and suitable for EAS, and the product performance consistency is improved. The RFID tag comprises an EAS tag and a UHF tag, wherein the UHF tag is of a square structure with an opening at one side, the EAS tag is positioned in the UHF tag, and the EAS tag comprises a rectangular coil and is provided with a long side and a short side; the UHF label comprises a Loop area and radiation areas arranged at two ends of the Loop area, the Loop area faces a short edge of a coil, the radiation areas are positioned outside a long edge of the coil, the Loop area is provided with an inner end and an outer end which are connected through a connecting part, two ends of the connecting part are respectively a first gap and a second gap, the first gap and the second gap are asymmetrically arranged, one side, close to the center, of the outer end of the Loop area is provided with an opening, and a notch used for connecting a chip is formed between the opening and the first gap; or a notch for connecting the chip is arranged between the opening and the second gap. The utility model has convenient processing and reliable operation.

Description

High-consistency RFID tag suitable for EAS

Technical Field

The utility model relates to the field of RFID (radio frequency identification) tags, in particular to an RFID tag with high consistency and suitable for EAS (electronic article surveillance).

Background

Rfid (radio Frequency identification) technology, also called radio Frequency identification, is a communication technology that can identify a specific target and read and write related data through radio signals without establishing mechanical or optical contact between an identification system and the specific target.

Low frequency, high frequency, ultrahigh frequency and microwave are four main application frequencies of RFID in China, and the ultrahigh frequency RFID occupies absolute advantages in the market of China at present and accounts for eight times. The RFID is used as a sub-industry of the Internet of things, is positioned on a sensing layer, is the basis of the development of the Internet of things, and is also the premise of realizing the Internet of things. The development of the application layer of the internet of things must be carried out on the support of the sensing layer, so that the sensing layer is a preferential development industry in the industry of the internet of things if the internet of things is to be developed. The development of the internet of things enables the application layer requirements to show a diversified and complicated trend, the application scene is continuously expanded, and the novel technical requirements are released, so that the innovation and the upgrade of the related technology of the perception layer are driven.

Compared with other sensing technologies (two-dimensional codes, bar codes and the like), the RFID technology has the advantages of no need of contact, no need of visibility, complete automatic identification and the like, and has relatively low limitations in the aspects of applicable environment, reading distance, reading efficiency and read-write performance. When the application range of the internet of things is continuously expanded, the RFID becomes a key development and mainstream perception layer technology, the future cost is gradually reduced, so that the RFID is expected to further replace the market share of two-dimensional codes and bar codes in a highly intelligent society, the updating and updating requirements exist in the industry, and the technology innovation drives the sustainable and healthy development of the industry.

In order to adapt to increasingly complex application environments and increasingly higher application requirements, the performance requirements of the RFID tag are increasingly higher. The existing ultrahigh frequency tag comprises a base material, a front metal antenna, a conductive adhesive and a chip, wherein the front metal antenna is attached above the base material, and the conductive adhesive is positioned above the metal antenna and is used for connecting the metal antenna and the chip. The conventional RFID ultrahigh frequency tag obtains energy by receiving electromagnetic waves to activate the tag to radiate the electromagnetic waves in an outward fixed direction, so that radio frequency information transmission communication is carried out.

The structure of the RFID ultrahigh frequency tag in the existing industry is designed by matching a loop with an antenna radiation area, the loop area is positioned in the middle of an antenna, and the size of the loop is adjusted for adjusting the impedance matching of the antenna so as to realize the optimal state of antenna matching.

However, the existing new application needs to add the UHF RFID tag on the basis of the original EAS anti-theft tag, and the distance between the EAS anti-theft tag and the conventional UHF tag chip affects the performance of the UHF tag.

At present, in order to meet the size requirement of the finished product, the structure of the combined label is generally as the publication number of the publication authorized by the national intellectual property office in 2020.07.10 is CN210983472, which is named as "a dual-frequency smart label"; the middle chip of the UHF label faces to the long side direction of the EAS label, so that the signal identification problem is easily caused in the using process, and the quality consistency of products is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the RFID tag which has a simple structure, improves the product performance consistency, has high consistency and is suitable for EAS.

The technical scheme of the utility model is as follows: the RFID tag comprises an EAS tag and a UHF tag, wherein the UHF tag is of a square structure with an opening at one side, the EAS tag is positioned in the UHF tag, and the EAS tag comprises a rectangular coil and is provided with a long side and a short side;

the UHF label comprises a Loop area and radiation areas arranged at the two ends of the Loop area,

the Loop area faces the short side of the coil, the radiation area is positioned outside the long side of the coil,

the Loop area is provided with an inner end and an outer end which are connected through a connecting part, the two ends of the connecting part are respectively provided with a first gap and a second gap which are asymmetrically arranged,

an opening is arranged on one side of the outer end of the Loop area close to the center,

a notch for connecting the chip is formed between the opening and the first gap;

or

And a notch for connecting the chip is arranged between the opening and the second gap.

The Loop area is rectangular.

The opening is rectangular.

The radiation area is linear and parallel to the long edge of the coil.

The Loop area and the radiation areas arranged at the two ends of the Loop area are integrally formed and are all aluminum blocks.

The first gap and/or the second gap extend into the outer end.

In the working process, when the size requirement is met, the position of the UHF label is adjusted, so that the Loop area faces to the short edge of the EAS label, meanwhile, the asymmetrically arranged first gap and the asymmetrically arranged second gap are arranged in the Loop area, the chip is arranged externally, the influence of the EAS coil on the chip is reduced, and the consistency of the product performance of the UHF label is ensured.

The utility model has convenient processing and reliable operation.

Drawings

Figure 1 is a schematic view of the structure of the present invention,

FIG. 2 is a schematic diagram of the structure of a UHF tag;

in the figure 1 is an EAS tag, 11 is a long side, 12 is a short side,

a UHF tag, 20 an opening,

3 is Loop area, 31 is connecting part, 32 is inner end, 33 is outer end, 34 is gap one, 35 is gap two, 36 is opening, 37 is notch, 38 is extending section,

and 4 is the radiation area.

Detailed Description

The utility model is shown in fig. 1-2, comprising an EAS tag 1 and a UHF tag 2, wherein the UHF tag 2 is a square structure with an opening 20 at one side, the EAS tag 1 is positioned in the UHF tag 2, and the EAS tag 1 comprises a rectangular coil, and has a long side 11 and a short side 12;

the UHF tag 2 comprises a Loop area 3 and radiation areas 4 arranged at two ends of the Loop area,

the Loop area 3 is towards the short side 12 of the coil, the radiation area 4 is outside the long side 11 of the coil,

the Loop area 3 is provided with an inner end 32 and an outer end 33 which are connected through a connecting part 31, the two ends of the connecting part are respectively provided with a first gap 34 and a second gap 35, and the first gap and the second gap are arranged asymmetrically, namely the first gap and the second gap have different structures;

an opening 36 is arranged at one side of the outer end of the Loop area close to the center,

a notch 37 for connecting the chip is arranged between the opening 36 and the first gap 34;

or

And a notch for connecting the chip is arranged between the opening and the second gap. In the utility model, the connecting part and the opening are not arranged in the middle of the Loop area, and the chip connection can be arranged according to different positions.

The Loop area 3 is rectangular; the opening 36 is rectangular.

The Loop area is designed to be rectangular, so that the bandwidth of a label can be increased (the bandwidth of an antenna is increased to 30-50 MHz) to reduce the influence of the change of a medium material on the read distance performance of the label, and the bandwidth can be increased by designing the opening to be rectangular.

The radiation zone 4 is linear and parallel to the long side of the coil.

Thus, the complexity and the production cost of the production process are reduced while the optimal performance of the product is ensured.

The radiation area is designed in a single linear shape, the width of the broken line is 0.1-10 mm, and the length of the broken line is 0.2-100 mm; by adopting the single linear design, the effective length of the radiation area is ensured to the maximum extent, the gain value G of the antenna can reach 2dbi, the single linear shape can avoid the risk that the EAS label is not close to the radiation area due to insufficient production precision, and the product performance consistency is better ensured.

The Loop area 3 and the radiation areas 4 arranged at the two ends of the Loop area are integrally formed and are all aluminum blocks. Therefore, the integrated processing is convenient, the medium resistance function of the label can be improved, and the label can be used for different medium materials.

The first slit 34 and/or the second slit 35 extend into the outer end 33. As shown in fig. 2, slot one 34 extends into the outer end to form an extension 38. Can be set according to the processing requirements, thereby saving materials.

The chip type in the utility model is: ucode9, Ucode8, Ucode7 series, Monza 700 series, Monza R6, Monza 5, Monza 4, H3, H4, H9.

According to the utility model, through adjusting the design of the antenna, the UHF tag can be better matched with the EAS tag, the product performance consistency is ensured, the application of the antenna is widened, and the product competitiveness is improved.

Due to the fact that the chip is arranged externally, EAS labels of different sizes can be flexibly selected to be matched for use, early-stage design is more convenient, and the use scene is wider.

The performance (reading distance) of the utility model can reach 8-10 m in the conventional environment, which is better for article management, and meanwhile, the product used by matching with the EAS label has better anti-theft function, improves the economic benefit and has strong practicability.

The disclosure of the present application also includes the following points:

(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;

(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;

the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.

Claims

1. The RFID tag with high consistency and suitable for EAS comprises an EAS tag and a UHF tag, wherein the UHF tag is of a square structure with one open side, the EAS tag is positioned in the UHF tag, and the EAS tag comprises a rectangular coil and has a long side and a short side;

it is characterized in that the UHF label comprises a Loop area and radiation areas arranged at the two ends of the Loop area,

or

2. The high-uniformity EAS RFID tag of claim 1, wherein the Loop Loop region is rectangular.

3. A high uniformity RFID tag for EAS as claimed in claim 1 or claim 2, wherein said aperture is rectangular.

4. The high uniformity RFID tag for EAS as set forth in claim 1, wherein said radiating area is rectilinear and parallel to a long side of the coil.

5. The high-uniformity RFID tag for EAS according to claim 1, wherein the Loop region and the radiation regions at both ends of the Loop region are integrally formed and are aluminum blocks.

6. The high uniformity RFID tag for EAS of claim 1, wherein the slot one and/or slot two extends into the outer end.