Radio frequency tag capable of seeing authenticity with one eye and commodity
By designing RFID tags that allow for easy identification of authenticity at a glance, combined with a transparent label surface and unique patterns and symbols, the problems of traditional RFID tags being difficult to visually distinguish from counterfeits and fragile paper tags having poor tensile strength have been solved. This achieves efficient and economical anti-counterfeiting effects, and enhances anti-counterfeiting technology and brand protection.
Patent Information
- Application Number
- CN202423321995.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional RFID tags are complex to manufacture, costly, and have structures that make them difficult to distinguish from genuine ones visually. Anti-counterfeiting operations are cumbersome, and fragile paper tags have poor tensile strength and are easy to counterfeit, which affects their application in product anti-counterfeiting.
A novel RFID tag that allows consumers to easily identify genuine products is designed. It includes a release liner, a pressure-sensitive adhesive layer, a copper wire UHF antenna, a dual-loop RF resonant cavity assembly, and a tag surface layer. The transparent design and unique patterns and symbols enable consumers to identify genuine products at a glance. The copper wire and resonant cavity structure prevents secondary use. The TID code inside the RF chip corresponds one-to-one with the brand owner.
This allows consumers to easily distinguish between genuine and counterfeit products, prevents labels from being reused, improves anti-counterfeiting efficiency and effectiveness, reduces counterfeiting costs, and promotes the upgrading of anti-counterfeiting technology and brand protection.
Smart Images
Figure CN223897891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product labeling technology, specifically to an RFID tag and product that allows for easy identification of authenticity. Background Technology
[0002] While traditional RFID tags provide a unique code for each item, their numerous drawbacks limit their application in product anti-counterfeiting.
[0003] (1) Traditional RFID tag manufacturing process is complex, and chemical etching RFID antenna process generates a large amount of waste liquid and wastewater, resulting in high RFID tag manufacturing cost.
[0004] (2) Traditional RFID tags do not have distinctive features, and consumers cannot visually distinguish the authenticity of RFID tags.
[0005] (3) The traditional method of RFID tag anti-counterfeiting involves reading the data in the chip and comparing it with the backend product database. Only after the backend database information is processed can the authenticity information of the product be released. This is troublesome for brand owners, retailers, and consumers, and it affects the promotion and application of traditional RFID tags in the anti-counterfeiting industry.
[0006] In addition, to prevent RFID tags from being peeled off and reused, some RFID tags are made of fragile paper. However, fragile paper has the following drawbacks:
[0007] (1) The high price of fragile paper increases the transaction costs of branded goods;
[0008] (2) Fragile paper labels have low tensile strength and are not suitable for high-speed labeling product packaging lines for pharmaceuticals, wines, food, and bulk commodities;
[0009] (3) Fragile paper is easy to buy on the market, which makes the technical threshold for counterfeiting anti-counterfeiting fragile paper radio frequency tags low and the anti-counterfeiting effect poor.
[0010] Therefore, there is an urgent need for an RFID tag that allows people to visually identify the authenticity of goods during the circulation process. Utility Model Content
[0011] In order to overcome the shortcomings of existing technologies, this utility model provides an RFID tag and product that can be identified at a glance as genuine or counterfeit.
[0012] The technical solution of this utility model is as follows:
[0013] A type of RFID tag that can be easily identified as genuine or counterfeit includes a release liner, a pressure-sensitive adhesive layer, a copper wire UHF antenna, a dual-loop RF resonant cavity assembly, and a tag surface layer.
[0014] 1. Release paper and pressure-sensitive adhesive layer
[0015] The release liner is coated with a release agent with low peel strength and has a pressure-sensitive adhesive layer, which can meet the requirements of automatic labeling machines.
[0016] 2. Copper wire UHF antenna
[0017] The copper wire UHF antenna is formed by bending 0.06 mm to 0.07 mm copper wire and attaching it to the surface of a pressure-sensitive adhesive layer. The shape of the copper wire UHF antenna can be selected as linear, sinusoidal, square, triangular, trapezoidal, serrated, or mixed waveforms. Peeling it off from the pressure-sensitive adhesive layer will damage the copper wire waveform, causing the antenna to fail and preventing its reuse.
[0018] 3. Dual-circuit radio frequency resonant cavity assembly
[0019] The dual-loop RF resonant cavity assembly is located on the surface of the copper wire UHF antenna and coupled to it to form an UHF RFID tag. The dual-loop RF resonant cavity assembly includes a PET base film, a miniature dual-loop RF resonant cavity, and an RF chip.
[0020] (1) PET base film
[0021] The back surface of the PET base film is laser-cut with a CO2 laser beam to form a toothed slit.
[0022] (2) Miniature dual-loop radio frequency resonant cavity
[0023] The miniature dual-loop RF resonant cavity is located on a PET substrate film, and is coupled with an RF chip to form an ultra-high-resolution RFID tag. The miniature dual-loop RF resonant cavity consists of an inner ring aluminum foil and an outer ring aluminum foil formed by etching aluminum foil.
[0024] (3) Radio frequency chip
[0025] The RF chip's package pins include two balanced pins and two package leads, which are connected by a jumper wire. One balanced pin is connected to one end of the inner aluminum foil, and the other balanced pin is connected to one end of the outer aluminum foil. One package lead is connected to the other end of the inner aluminum foil, and the other package lead is connected to the other end of the inner aluminum foil.
[0026] The RF chip contains a brand-specific TID (Traceability Identifier), which is uniquely associated with the brand and cannot be rewritten. This ensures the RF chip is brand-identifiable and prevents counterfeiting.
[0027] 4. Label surface layer
[0028] The label surface is bonded to the release liner and encloses the copper wire UHF antenna and dual-loop RF resonant cavity assembly inside. The label surface is made of transparent material and has a pattern printed on it. By matching the pattern with the dual-loop RF resonant cavity assembly, the corresponding result can be seen at a glance.
[0029] The design includes a resonant cavity assembly symbol matching the shape of a dual-loop RF resonant cavity assembly, a chip symbol matching the shape of an RF chip, and an antenna symbol matching the shape of a copper wire UHF antenna. The design also includes a brand logo chip symbol, a brand logo area printed with the brand owner's logo, and a liability statement. The brand logo chip symbol corresponds one-to-one with the brand owner's code and the brand owner's name, and the liability statement reads, "We assume responsibility for anti-counterfeiting and compensate for losses incurred due to counterfeiting."
[0030] On the other hand, a product, including its packaging, has the aforementioned radio frequency tag that makes its authenticity immediately apparent.
[0031] According to the above-described solution, the beneficial effects of this utility model are as follows: through the transparent design of the label surface, the shape of the label surface and the internal chip, the shape of the copper wire, the shape of the resonant cavity, and the brand logo, consumers can easily confirm the authenticity of the product when purchasing it, making the identification of authenticity more efficient and accurate; at the same time, through the radio frequency identification of the CBIC inside the chip, radio frequency identification can also be performed on various radio frequency readers, which is beneficial for the identification of authenticity at various circulation links, and is conducive to product traceability and the identification of authenticity at each stage.
[0032] In this invention, the copper wire and radio frequency resonant cavity are not allowed to be reused, which makes the investment cost of counterfeiting the label greater than the profit of counterfeiting the goods, thus deterring counterfeiters. Attached Figure Description
[0033] Figure 1a This is a schematic diagram of an RFID tag in this utility model that allows for easy identification of genuine and counterfeit tags.
[0034] Figure 1b This is a side cross-sectional view of the RFID tag in this utility model that allows you to easily identify its authenticity.
[0035] Figure 1c A schematic diagram showing the opening of the label surface layer of the RFID tag in this utility model, which allows for easy identification of authenticity.
[0036] Figure 2 This is a schematic diagram of the label surface printing pattern in this utility model;
[0037] Figure 3 This is a schematic diagram of the brand identification chip symbol in this utility model;
[0038] Figure 4 This is a schematic diagram showing the distribution of the TID code area in the radio frequency chip of this utility model;
[0039] Figure 5 This is a schematic diagram of the RF chip package pins in this utility model;
[0040] Figure 6a This is a schematic diagram of the laser slit in the dual-ring radio frequency resonant cavity assembly of this utility model;
[0041] Figure 6b This is a side cross-sectional view of the laser-cut slit in the dual-ring radio frequency resonant cavity assembly of this utility model;
[0042] Figure 7 This is a schematic diagram of the copper wire ultra-high frequency antenna in this utility model.
[0043] In the diagram, the labels for each item are as follows:
[0044] 1. Release paper; 2. Pressure-sensitive adhesive layer; 3. Copper wire UHF antenna; 4. Dual-loop RF resonant cavity assembly; 4-1. RF chip; 4-1-1. Encapsulation pin; 4-1-2. Encapsulation balance pin; 4-2. Miniature dual-loop RF resonant cavity; 4-3. PET base film; 4-4. Laser cut; 5. Label surface layer. Detailed Implementation
[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0046] like Figures 1a to 7 As shown, this utility model addresses the shortcomings of existing RFID tags, such as their susceptibility to reuse or counterfeiting, and the lack of responsibility for anti-counterfeiting measures borne by manufacturers of anti-counterfeiting packaging. It provides an RFID tag that allows for easy identification of authenticity and can be customized to create a unique product label corresponding to the brand. This easily identifiable RFID tag includes a release liner, a pressure-sensitive adhesive layer, a copper wire UHF antenna, a dual-loop RF resonant cavity assembly, and a label surface layer.
[0047] 1. Release paper and pressure-sensitive adhesive layer
[0048] The release liner 1 is coated with a release agent with light peel strength, and a pressure-sensitive adhesive layer 2 is provided on the surface of the release liner 1. The release liner 1 is connected to the pressure-sensitive adhesive layer 2 through the release agent, which can meet the requirements of the automatic labeling machine.
[0049] 2. Copper wire UHF antenna
[0050] The copper wire UHF antenna 3 is formed by bending copper wire and attaching it to the surface of the pressure-sensitive adhesive layer 2. The diameter of the copper wire is 0.05 mm to 0.08 mm (preferably 0.06 mm to 0.07 mm), and the resistance per meter of copper wire is less than 7.5 ohms, ensuring that the copper wire can be broken under gravity under normal use and avoiding secondary use.
[0051] The shape of the copper wire UHF antenna 3 can be straight, sinusoidal, square, triangular, trapezoidal, serrated, or mixed. A mixed waveform refers to a shape formed by connecting any two or more of the above shapes, such as a segment of straight line, a segment of sinusoidal waveform, a segment of straight line, etc.
[0052] 3. Dual-circuit radio frequency resonant cavity assembly
[0053] like Figures 5 to 6b As shown, the dual-loop RF resonant cavity assembly 4 is located on the surface of the copper wire UHF antenna 3 and coupled thereto to form an UHF RFID tag. The dual-loop RF resonant cavity assembly 4 includes a PET base film 4-3, a miniature dual-loop RF resonant cavity 4-2, and an RF chip 4-1.
[0054] (1) PET base film
[0055] The PET base film 4-3 has a planar dimension of 8 mm × 9 mm and a thickness of 50 micrometers.
[0056] The back surface of the PET base film 4-3 is laser-cut with a CO2 laser beam to form a laser slit 4-4. The CO2 laser beam will not cut or damage the aluminum foil of the miniature dual-ring RF resonator 4-2, nor will it damage the copper wire UHF antenna 3, thus not affecting the performance of the RFID tag. This laser slit 4-4 is a perforated groove (the laser slit connects the aluminum foil, which is only 10 micrometers thick and 0.2 millimeters wide), so that when the dual-ring RF resonator assembly 4 is peeled off from the product packaging, the assembly breaks into two small pieces along the laser slit, preventing the RFID tag from being reused.
[0057] (2) Miniature dual-loop radio frequency resonant cavity
[0058] The miniature dual-loop RF resonant cavity 4-2 is located on the PET base film 4-3, and the miniature dual-loop RF resonant cavity 4-2 is coupled with the RF chip 4-1 to form an ultra-high frequency RFID tag. The miniature dual-loop RF resonant cavity 4-2 includes an inner ring aluminum foil and an outer ring aluminum foil formed by etching aluminum foil. The openings of the inner ring aluminum foil and the outer ring aluminum foil are located at one point to connect with the RF chip 4-1. The outer ring aluminum foil on the side opposite to the mounting position of the RF chip 4-1 has an antenna coupling position, which allows it to couple with the copper wire ultra-high frequency antenna 3.
[0059] The inner diameter of the inner aluminum foil is 3 mm to 5 mm, which can be adjusted according to different brands of chips to form dual-ring RF resonant cavity assemblies of different sizes.
[0060] (3) Radio frequency chip
[0061] like Figures 1a to 1c , Figure 5As shown, the package pins of the RF chip 4-1 include two package balance pins 4-1-2 and two package balance pins 4-1-1, with the two package balance pins 4-1-2 connected by a jumper wire. One package balance pin 4-1-2 is connected to one end of the inner aluminum foil, and the other package balance pin 4-1-2 is connected to one end of the outer aluminum foil. One package balance pin 4-1-1 is connected to the other end of the inner aluminum foil, and the other package balance pin 4-1-1 is connected to the other end of the outer aluminum foil. The RF chip 4-1 is fixed to the endpoints of the miniature dual-ring RF resonator 4-2 using conductive resin. The inner and outer aluminum foils are connected in series through the jumper wire between the package balance pins 4-1-2. The two package balance pins 4-1-1 of the RF chip 4-1, together with the inductors connected in series with the inner and outer aluminum foils, form the dual-ring RF resonator assembly.
[0062] like Figure 4 As shown, the RF chip 4-1 has a TID (Traceability Identifier) code area. The TID code area contains a brand manufacturer code (brand identification chip (CBIC customized code)). This brand manufacturer code corresponds one-to-one with the brand manufacturer and cannot be rewritten. This ensures the RF chip corresponds to the brand manufacturer, preventing counterfeiting. In this invention, the TID code area includes a chip manufacturer code area, a customized code area, and a serial number area. It may also include other number areas. The chip manufacturer code in the chip manufacturer code area and the customized code in the customized code area combine to form the brand manufacturer code. This number is unique and corresponds one-to-one with the brand manufacturer and the branded product, and the chip manufacturer information can be traced through this number.
[0063] 4. Label surface layer
[0064] like Figures 1a to 4 As shown, the label surface layer 5 is bonded to the release liner and is used to enclose the copper wire UHF antenna 3 and the dual-loop RF resonant cavity assembly 4 inside.
[0065] The label surface layer 5 is made of transparent material with a pattern printed on its surface. The pattern corresponds to the dual-ring RF resonant cavity assembly 4, allowing for easy viewing of the corresponding result. The bottom surface of the label surface layer 5 is coated with a high-peel-strength anti-adhesive, which connects the label surface layer 5 to the pressure-sensitive adhesive layer 2.
[0066] The printed patterns include a resonant cavity assembly symbol, a chip symbol, an antenna symbol, a brand logo chip symbol, a brand logo area, and a liability waiver. The resonant cavity assembly symbol matches the shape of a dual-coil RF resonant cavity assembly; the chip symbol matches the shape of an RF chip; the antenna symbol matches the shape of a copper wire UHF antenna; the brand logo chip symbol corresponds one-to-one with the brand code and the brand itself; the brand logo area displays the brand's logo; and the liability waiver states, "We assume responsibility for anti-counterfeiting and will compensate for losses incurred due to counterfeiting." The brand logo chip symbol, resonant cavity assembly symbol, chip symbol, and antenna symbol are all located on the left half of the label surface. Consumers can easily identify authenticity by comparing this information with the internal structure seen through the label surface. The brand logo area and liability waiver are located on the right half of the label surface.
[0067] RFID tags that are easily identifiable as genuine or counterfeit typically range in width from 8mm to 40mm and length from 50mm to 140mm. The size of the tag may vary depending on the application.
[0068] Anti-counterfeiting sealing labels for paper boxes, paper packaging, and plastic packaging: label width 10-12 mm, length 80-140 mm;
[0069] Daily cosmetic sealing labels and wine bottle sealing labels: Label width 10 mm, length 80-100 mm;
[0070] Anti-counterfeiting labels for footwear, apparel, pharmaceuticals, and other commodities: label width 30–40 mm, length 80–100 mm;
[0071] Anti-counterfeiting label for corrugated cardboard box outer packaging: label width 40 mm, length 100 mm;
[0072] Anti-counterfeiting labels for electronic product control panels, display panels, and button areas: label width 40 mm, length 100 mm.
[0073] This utility model also proposes a product, which includes product packaging and a product body located inside the product packaging. The product packaging is provided with the aforementioned radio frequency tag that can be used to directly identify the authenticity of the product packaging and the product body.
[0074] This utility model enables visual identification of RFID tags, making their authenticity immediately apparent:
[0075] 1. The label surface is printed with personalized design symbols, including brand logo chip symbols, chip symbols with shorting wires (the shorting wires are used to indicate the connection of two package balance pins in the RF chip), symbols for resonant cavity assemblies with inner and outer aluminum foil rings, antenna symbols for copper wire antennas, etc. These designs are original.
[0076] 2. The use of the word "responsibility" represents the anti-counterfeiting manufacturer's commitment to responsibility.
[0077] 3. The application of transparent label layers allows consumers to see the structure inside the label layer from the outside.
[0078] On the one hand, the internal copper wire UHF antenna has a structure that differs from traditional antenna designs, and its shape matches the printed shape on the label surface. On the other hand, the internal dual-loop RF resonant cavity assembly design can be seen from the outside, and its shape matches the printed shape on the label surface.
[0079] This utility model provides radio frequency identification for RFID tags whose authenticity can be easily determined at a glance:
[0080] 1. Universal RFID reader identifies the authenticity of anti-counterfeiting RFID tags.
[0081] The firmware of the universal reader contains a "brand identification chip (CBIC customized code)" in the TID code of the anti-counterfeiting label. This is compared with the TID code of the read RFID tag. If the CBIC customized code is present, it is confirmed to be a genuine anti-counterfeiting RFID tag.
[0082] 2. Professional readers identify the authenticity of anti-counterfeiting radio frequency identification devices.
[0083] Professional RFID readers for authenticity verification group the brand identification chip's CBIC customized code with the corresponding brand. Each brand's chip's customized code corresponds to a voice advertisement. When the CBIC customized code of the tag chip is read, the corresponding brand advertisement is immediately played. Consumers can judge the authenticity of the product by sound, which is a far better user experience than visually viewing digital devices. For example:
[0084] (1) Consumers can distinguish the authenticity of goods before purchasing: The shopping mall guide screen is equipped with a professional radio frequency reader. If consumers hear the voice brand advertisement and see the brand video introducing the product when they approach the product they intend to buy, they can judge that the product is genuine.
[0085] (2) When consumers pay for and receive goods in the mall, they can identify the authenticity of the goods: The mall's cash register is equipped with a professional radio frequency reader to read the radio frequency tag of each item. If the item has a brand identification chip, the cash register printer will print the brand's logo or text or the symbol of the genuine product in the corresponding position of the product code on the receipt, providing consumers with traceable proof.
[0086] (3) Authenticity identification of products supplied by manufacturers or intermediaries: The shopping mall is equipped with a professional radio frequency reader at the goods receiving port to identify the radio frequency tags on the product packaging boxes. In addition to the warehousing information program, it also identifies the TID code of the radio frequency tag on the packaging box and the customized code of the brand identification chip. If the two are consistent, the brand owner's LOGO, code or identification symbol will be printed in the corresponding column of the goods receiving and warehousing slip. If the customized code of the brand identification chip is not read, it is judged to be a counterfeit brand product, and an alarm photoelectric signal will be issued to prompt relevant personnel to inquire.
[0087] (4) Consumers can personally identify the authenticity of goods: tobacco, alcohol, and medicine specialty stores, restaurants, hotels, bars, and other establishments can provide consumers with miniature brand identification and traceability cards. These cards can be used for voice advertising to identify the authenticity of tobacco, alcohol, and medicine. For example, the brand voice advertising before opening a bottle of fine wine allows guests to appreciate genuine wine and hosts to enjoy the pleasure of entertaining guests. Meanwhile, some high-priced luxury goods (such as branded tobacco, alcohol, medicine, handbags, watches, calligraphy and paintings, and arts and crafts) can be accompanied by a "brand identification and traceability card." When sharing luxury goods, the "brand identification and traceability card" can read the RFID tag of the luxury goods, and the brand voice advertising enhances the image of the luxury goods and their owners.
[0088] The principle behind this utility model for easily identifiable RFID tags includes uniquely designed components and non-reusable parts:
[0089] (1) Copper wire antenna and coupled RFID tag working together, chip design with shorting wire, RF resonant cavity structure with double loop design, etc.
[0090] (2) The dual-loop radio frequency resonant cavity assembly and the copper wire UHF antenna are not reusable: The back of the PET base film in the dual-loop radio frequency resonant cavity assembly is laser-cut, so that when the dual-loop radio frequency resonant cavity assembly is peeled off from the pressure-sensitive adhesive layer, the aluminum foil breaks and loses the resonant cavity function; after the 0.06-0.08 mm fine copper wire is pasted on the pressure-sensitive adhesive layer, there is an adhesive force between the copper wire and the pressure-sensitive adhesive layer, so that the copper wire breaks or is pulled into a straight line during the pulling process, and loses the antenna function.
[0091] In addition to traditional radio frequency identification (RFID) functions, the RFID tag of this invention, which allows for easy identification of authenticity, also has the following features:
[0092] 1. The label surface is printed with special symbols and anti-counterfeiting promises, which can demonstrate performance different from traditional RFID tags.
[0093] 2. The "Brand Identification Chip CBIC" is a specially customized chip for brand owners, unlike traditional radio frequency chips. It upgrades anti-counterfeiting resources from traditional printing and packaging processes to chip manufacturing processes, and from software code anti-counterfeiting to chip hardware code anti-counterfeiting. The technology and capital invested in counterfeiting the Brand Identification Chip CBIC far exceed the profits gained by counterfeiters, deterring potential counterfeiters.
[0094] 3. Among the tags, the copper wire antenna coupled RFID tag and the double-ring resonant cavity assembly with laser-cut grooves will fail if folded, ensuring that they cannot be reused.
[0095] 4. The label is placed at the opening of the product packaging, installed on the display screen, indicator light, or operation button switch. When the product is activated, the RFID tag, which is obviously genuine, must be removed, which will inevitably lead to the label separation failure.
[0096] 5. Wide range of applications, including product packaging such as boxes, bottles, bags, and brands, and various electronic products.
[0097] The RFID tag of this utility model, which allows for easy identification of authenticity at a glance, has the following social benefits:
[0098] 1. RFID tags that can instantly identify authenticity simplify anti-counterfeiting identification, have extremely high anti-counterfeiting effectiveness, and are widely applicable.
[0099] 2. RFID tags that can instantly identify authenticity can drive the upgrade of anti-counterfeiting technology from traditional printing and packaging processes to chip manufacturing processes. The extremely high technical and financial barriers to chip manufacturing deter counterfeiters and eliminate counterfeiting.
[0100] 3. RFID tags that are easy to identify at a glance help protect the brand.
[0101] 4. RFID tags that are easy to identify at a glance help create brands and protect innovative products and works of art from being counterfeited.
[0102] 5. RFID tags that can instantly identify genuine products curb counterfeiting and substandard goods, and enhance the reputation of Chinese manufacturing in the international market.
[0103] 6. RFID tags that can instantly identify authenticity provide customized chips for government departments and industry associations, ensuring that the goods under their jurisdiction (pharmaceuticals, medical supplies, fire-fighting equipment, building materials, auto parts, production materials, and civilian products) are free from counterfeit and substandard products, thereby improving the management efficiency of government departments and industry associations and enhancing social operational efficiency.
[0104] 7. RFID tags that are easy to identify at a glance enhance the resources available for brand enterprises to expand and develop.
[0105] 8. RFID tags that can instantly identify genuine products are driving the informatization of the manufacturing industry, enabling every product to have a chip and providing full-process tracking services from production and manufacturing to warehousing, logistics, sales, and consumer applications.
Claims
1. A radio frequency tag whose authenticity can be easily determined, characterized in that, include: Release paper, A pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer is located on the surface of the release liner; A copper wire ultra-high frequency antenna, wherein the copper wire ultra-high frequency antenna is formed by bending copper wire and is attached to the surface of the pressure-sensitive adhesive layer; A dual-loop radio frequency resonant cavity assembly is located on the surface of the copper wire ultra-high frequency antenna and coupled thereto to form an ultra-high frequency radio frequency tag. The dual-loop radio frequency resonant cavity assembly includes a radio frequency chip. The radio frequency chip has a TID code area. The TID code area has a brand owner code. The brand owner code corresponds one-to-one with the brand owner. The label surface layer is bonded to the release liner and is used to enclose the copper wire UHF antenna and the dual-loop RF resonant cavity assembly inside. The label surface layer is made of transparent material and its surface is printed with a resonant cavity assembly symbol that is consistent with the shape of the dual-loop RF resonant cavity assembly, a chip symbol that is consistent with the shape of the RF chip, and an antenna symbol that is consistent with the shape of the copper wire UHF antenna.
2. The RFID tag with easily identifiable authenticity according to claim 1, characterized in that, The label surface is also printed with a brand identification chip symbol, which corresponds one-to-one with the brand owner code and the brand owner.
3. The RFID tag with easily identifiable authenticity according to claim 1, characterized in that, The label surface also features a brand logo area, on which the brand logo is printed. The label surface also includes the statement "We assume responsibility for anti-counterfeiting and will compensate for losses incurred due to counterfeiting." 4. The RFID tag with easily identifiable authenticity according to claim 1, characterized in that, The diameter of the copper wire is 0.05 mm to 0.08 mm, and the resistance per meter of the copper wire is less than 7.5 ohms.
5. The RFID tag with easily identifiable authenticity according to claim 1, characterized in that, The shape of the copper wire UHF antenna can be linear, sinusoidal, square, triangular, trapezoidal, toothed, or mixed.
6. The RFID tag with easily identifiable authenticity according to claim 1, characterized in that, The package pins of the radio frequency chip include two package balance pins and two package pins, and the two package balance pins are connected by a jumper wire.
7. The RFID tag with easily identifiable authenticity according to claim 6, characterized in that, The dual-ring radio frequency resonant cavity assembly also includes a PET base film and a miniature dual-ring radio frequency resonant cavity. The miniature dual-ring radio frequency resonant cavity is located on the PET base film, and the miniature dual-ring radio frequency resonant cavity is coupled with the radio frequency chip to form an ultra-high frequency radio frequency tag.
8. The RFID tag with easily identifiable authenticity according to claim 7, characterized in that, The back surface of the PET base film is laser-cut to form toothed slits.
9. The RFID tag with easily identifiable authenticity according to claim 1, characterized in that, The label is 8 mm to 40 mm wide and 50 mm to 140 mm long.
10. A commodity, characterized in that, The product packaging includes a radio frequency tag that allows for easy identification of authenticity as described in any one of claims 1 to 9.