TW201820208A - Miniaturized anti-metal electronic tag with long read distance for achieving the effect of resisting metal interference and providing long read distance, with a convenient usage condition that is simple and miniaturized without occupying much space - Google Patents

Abstract

Provided is a miniaturized anti-metal electronic tag with long read distance, which is an ultra-high frequency electronic tag with a second antenna surface attached to a metal object. When an electronic tag reading device is used to read the identification code of the radio frequency identification (RFID) chip on a side antenna, a hole-breaking slot and a groove, which are formed on the side antenna and located on the side between the first antenna and the second antenna, pass the isolation of an insulating separator plate to form a resonant cavity. Thus, the first antenna located on the resonant cavity generates resonance by reflecting the electromagnetic wave signal on the metal object via the second antenna, thereby causing the side antenna to sense the electromagnetic wave signal from the resonant cavity, and transmitting the electromagnetic wave signal to the RFID chip or transmitting feedback signal of the RFID tag to outside. When the ID identification code on the tag is read by an electronic tag reading device, the overall ultra-high frequency electronic tag structure can achieve the effect of resisting metal interference and providing long read distance, with a convenient usage condition that is simple and miniaturized, without occupying much space.

Description

   Long reading distance and miniaturized anti-metal electronic tag   

The invention relates to a long-reading-length miniaturized anti-metal electronic tag capable of resisting metal interference and long-reading distance under the condition of simple and miniaturization and convenient use without occupying space.

Radio frequency identification (Radio Frequency Identification, RFID) technology has been widely used in many fields such as industrial automation, commercial automation, transportation control management and so on. More and more studies have begun to study ultra-high frequency (UHF) RFID systems in order to achieve long-distance, high-efficiency, low-cost characteristics of the system. Because RFID has the advantages of non-contact, low cost, high security, and mass production, it has the advantage of low cost. It has gradually replaced the traditional two-dimensional bar code. Currently on the market, radio frequency identification (RFID) is also widely used in many fields such as identification, access control, vehicle (flow) vehicle management, warehousing and logistics, retail, industrial security management, and forestry management.

Generally, the microstrip antenna has the shortcomings of narrow frequency, which results in many restrictions on the antenna design. Most of them have a single frequency and a narrow frequency response. Among them, UHF electronic tags often use printed antennas, and microstrip antennas, most of which are printed dipoles, and this structure is mainly applied to the surface of non-metallic media such as general goods, commodities, books, etc. However, if it is used in a metal environment such as metal tags, vehicles (vehicles), license plates, power facilities, etc., because the structure of the metal surface is used, the signal is easily reflected and the reception is abnormal, even if it cannot be operated and read. problem. At present, in some advanced countries, the metal surface electronic label technology has developed more maturely and has been widely used in various fields of logistics. In most other countries, although UHF electronic labels have also become very popular, they can be used for real. There are few electronic tags on metal surfaces. Conventional use, such as the "Infrared Radio Frequency Identification Metal Product Manufacturing Method and Structure" No. I479735 Taiwan invention patent case, which uses the metal plate of the metal product itself as the metal primary antenna body, and the resonant cavity is formed on the metal primary antenna body once. The antenna is then a small-sized microstrip loop-loop metal secondary antenna with a tangent tangent. After preparation on the electronic tag module, it is sealed and sealed in the metal primary antenna to match the resonance cavity. Finally, the surface of the metal primary antenna is subjected to anti-interference treatment. As a result, the manufactured metal radio frequency identification products, the internal electronic tag (UHF RFID TAG), not only is not affected by metal interference, but also can transform into a better field shape to achieve long-distance reading; although the above-mentioned conventional technology It can solve the problem that the electronic tag is susceptible to metal interference and obtain the effect of long reading distance. However, the preparation of the metal primary antenna and the processing of the placement and sealing of the electronic tag, in addition to the complicated procedures and high manufacturing costs, affect the product. In addition to the penetration rate, the overall structure of the first antenna and electronic tag combination is attached to other metal parts as Do not use it, there may be the disadvantage of using too much space. Also, based on the space restrictions or conditions of the electronic tag, there are many different types of metal objects on the market. Only small-sized long-reading anti-metal electronic tags can It is really easy to use on various metal objects.

The main object of the present invention is to provide a long-reading distance miniaturized anti-metal electronic tag, which is an ultra-high frequency electronic tag, which includes an insulating isolation plate, a first antenna, a second antenna, a side antenna, and A radio frequency identification RFID chip; the insulating and isolating plate is a plate formed of a non-conductive material, and has a first surface, a second surface, and a side surface; and the first antenna is a cover on the The conductive foil film antenna surface on the first surface of the insulating isolation plate; the second antenna is a conductive foil film antenna surface overlaid on the second surface of the insulating isolation plate; the side antenna is a The conductive foil film antenna surface laminated on the side surface of the insulating isolation plate has a hole on the foil film surface, and a hole is opened from the hole to an edge. A chip setting area is formed corresponding to the edge of the two grooves; the radio frequency identification RFID chip is arranged on the chip setting area of the side antenna to match the first antenna and the second antenna, and the holes of the broken slot can be formed by the holes Shape and width of the groove, adjust the electromagnetic Signal induction frequency band / bandwidth and induction field type; when the surface of the second antenna is mounted on a metal object, and an electronic tag reading device is used to read the identification code of the radio frequency identification RFID chip on the side antenna The sides of the hole and slot on the side antenna that are between the first antenna and the second antenna can form a resonance cavity through the isolation of the insulating isolation plate, so as to be positioned on the resonance cavity. The first antenna can generate electromagnetic resonance by reflecting the electromagnetic wave signal on the metal object through the second antenna, causing the side antenna to induce the electromagnetic wave signal from the resonant cavity, and transmit the electromagnetic wave signal to the radio frequency identification RFID chip, or wirelessly. The feedback signal of the radio frequency identification RFID chip is transmitted; the overall UHF electronic tag structure, for the use of an electronic tag reading device to read the ID identification code on the tag, can be used in a simple, compact and convenient space without using space to achieve anti-metal interference Effect with long reading distance.

A second object of the present invention is to provide a long-reading distance miniaturized anti-metal electronic tag, wherein a layer of double-sided adhesive is provided on the outer surface of the second antenna, and a double-sided adhesive is provided on the double-sided adhesive. Release paper, just need to tear the release paper from the outer surface of the second antenna, you can use double-sided adhesive on the surface of various objects can produce the role of adhesion and fixation, so that UHF electronic labels can be easily used in a variety of Finished use on the surface of metal objects.

Still another object of the present invention is to provide a long-reading distance miniaturized anti-metal electronic tag, wherein the insulating isolation plate is a plate made of a flexible insulating material, and the insulating isolation plate Flexible, so that UHF electronic tags can be used on curved surfaces of metal objects.

Another object of the present invention is to provide a long-reading distance miniaturized anti-metal electronic tag, wherein the slot hole on the side antenna is a square hole slot, and the slot is broken by one side of the slot hole. Extending to an edge; the size of the slot of the broken slot and the slot width of the slot match the induced field pattern when the electromagnetic wave signal is reflected between the first and second antennas, and the frequency band of the electromagnetic wave signal that is sensed With the adjustment of bandwidth, the UHF electronic tag can be used on metal objects for identification and use. It can achieve high sensitivity and long-distance reading effect in the frequency band used.

Another object of the present invention is to provide a long-reading distance miniaturized anti-metal electronic tag, wherein the first antenna, the second antenna, and the side antenna are collectively disposed on an insulating substrate sheet, and then The first antenna, the second antenna, and the side antenna are bonded to the first surface, the second surface, and the side surface of the insulating isolation plate by bending the insulating substrate sheet, so that The first and second antennas and the side antennas can be stably completed on the insulating isolation plate; and the above-mentioned insulating substrate sheet is a metal foil film etched on the surface of the polymer plastic sheet to form the first antenna and the second antenna. And side antennas, and the hole slot is made on the side antenna, and the groove and the chip setting area are formed, so that the first and second antennas and the side antennas can be easily manufactured by the general PC circuit board line process. .

A further object of the present invention is to provide a long-reading distance miniaturized anti-metal electronic tag, wherein the insulating isolation plate is formed by respectively attaching a metal conductive foil film on the first surface and the second surface. The first antenna and the second antenna, and then attach the side antenna to the side surface of the insulating partition sheet, and electrically connect the first antenna and the second antenna, so that the side antenna and the The radio frequency identification (RFID) chip on the side antenna is broken, and the radio frequency identification (RFID) chip on the chip setting area can be produced separately from the insulating isolation plate; and the side antenna is a metal on an insulating sheet. The foil film layer is used as the antenna surface, and the hole hole and the groove are formed by etching the metal foil film layer, so that the radio frequency identification RFID chip setting on the side antenna and the side antenna antenna chip setting area can be used for general PC circuits. The board manufacturing process is completed in large quantities.

10, 10A‧‧‧Insulation board

11, 11A‧‧‧First surface

12, 12A‧‧‧Second surface

13, 13A‧‧‧ side surface

14‧‧‧ resonant cavity

20, 20A, 20B‧‧‧First antenna

30, 30A, 30B‧‧‧Second antenna

31‧‧‧ double-sided adhesive

32‧‧‧ release paper

40, 40A, 40B‧‧‧Side Antenna

41, 41A, 41B

42, 42A, 42B

43, 43A, 43B‧‧‧Chip setting area

44‧‧‧Insulation sheet

50‧‧‧Radio Frequency Identification RFID Chip

60‧‧‧Metal objects

70‧‧‧ Insulating substrate sheet

Figure 1 is a perspective view of the structure of the present invention

Fig. 2 is an enlarged schematic view of the structure of Fig. 1A

Figure 3 is a sectional view of the structure of the present invention

Fig. 4 is an enlarged schematic view of the structure of Fig. 3B

FIG. 5 is a schematic diagram of a state when the present invention is applied to a metal object

Fig. 6 is an enlarged schematic view of the structure of Fig. 5C

Fig. 7 is a sectional view showing the structure of an embodiment of a release paper according to the present invention

Fig. 8 is an enlarged schematic view of the structure of Fig. 7D

FIG. 9 is a schematic diagram of a state when the release paper is peeled off from the second antenna portion of the present invention

Fig. 10 is an enlarged schematic view of the structure of Fig. 9E

FIG. 11 is an exploded perspective view of another embodiment of the first and second antennas and side antennas of the present invention.

FIG. 12 is an external perspective view of another embodiment of the first, second and side antennas of the present invention

FIG. 13 is an enlarged schematic view of the structure of FIG. 11F

FIG. 14 is an enlarged schematic view of the structure of FIG. 12G

FIG. 15 is a sectional view showing the structure of another embodiment of the first, second and side antennas of the present invention

Fig. 16 is an enlarged schematic view of the structure of Fig. 15H

FIG. 17 is an exploded perspective view showing the structure of another embodiment of a side antenna of the present invention

18 is a cross-sectional view showing the structure of another embodiment of a side antenna of the present invention

Fig. 19 is an enlarged schematic view of the structure of Fig. 18I

In order to achieve the above-mentioned object, the present invention specifically presents a preferred embodiment, and in conjunction with the attached drawings, it is described in detail as follows: A long-reading distance miniaturized anti-metal electronic tag, as shown in Figs. 1, 2, 3, and 4 The high-frequency electronic tag includes an insulating isolation plate 10, a first antenna 20, a second antenna 30, a side antenna 40, and a radio frequency identification RFID chip 50. The insulating isolation plate 10 is A plate formed of a conductive material has a first surface 11, a second surface 12, and a side surface 13 on the upper and lower surfaces and a side surface of the plate body. The first antenna 20 is a cover that is laminated on the insulation. An antenna surface of a metal conductive foil film (such as a copper or aluminum foil film) on the first surface 11 of the isolation plate 10; the second antenna 30 is a cover that is laminated on the second surface 12 of the insulation isolation plate 10 Metal conductive foil film (such as copper or aluminum foil film) antenna surface; the side antenna 40 is a metal conductive foil film (such as copper or aluminum foil film) antenna surface laminated on the side surface 13 of the insulating isolation plate 10, The metal foil film is slotted near the center, and has a hole-breaking slot 41, and the hole-breaking slot 41 is opened to an edge. A groove 42 is formed by using the corresponding two groove edges of the groove 42 as contacts to form a wafer setting area 43. The radio frequency identification RFID chip 50 is arranged on the wafer setting area 43 of the side antenna 40 and the first The antenna 20 and the second antenna 30 are matched, and the induction frequency band / band width and induction field type of the electromagnetic wave signal can be adjusted by the hole size of the broken hole 41 and the groove width of the groove 42; as shown in Figure 5, 6. When the second antenna 30 is surface-mounted on a metal object 60, and an electronic tag reading device (not shown) is used to read the identification code of the radio frequency identification RFID chip 50 on the side antenna 40, The side hole of the side antenna 40 with the hole 41 and the groove 42 interposed between the first antenna 20 and the second antenna 30 can form the resonance cavity 14 through the isolation of the insulating isolation plate 10, 俾The first antenna 20 located on the resonant cavity 14 can be used to reflect the electromagnetic wave signal on the metal object 60 through the second antenna 30 to generate resonance, causing the side antenna to induce the electromagnetic wave signal from the resonant cavity and transmit the electromagnetic wave signal. To the radio frequency identification RFID chip 50, or to put the radio frequency identification RFID chip 50 The feedback signal is transmitted (through the second antenna 30); the overall UHF electronic tag structure, for reading the ID identification code on the tag using an electronic tag reading device (not shown), can be simplified and miniaturized without occupying space Convenient use conditions to achieve the effects of anti-metal interference and long reading distance.

According to the above embodiment, as shown in Figs. 7 and 8, the outer surface of the second antenna 30 is provided with a layer of double-sided adhesive 31, and a release paper 32 is provided on the double-sided adhesive 31, as shown in Figs. 9, 10, just need to tear the release paper 32 from the outer surface of the second antenna 30, you can use the double-sided adhesive 31 on the surface of various objects can be fixed and fixed, so that UHF electronic tags It can be conveniently used on a variety of metal objects.

According to the above embodiment, as shown in FIGS. 1 and 3, the insulating and isolating plate 10 is a plate made of a flexible insulating material (such as a flexible polymer plastic, rubber plastic, or silicone insulating material). With the flexibility of the insulating and isolating plate 10, the UHF electronic tag can be used on the curved surface of a metal object.

According to the above embodiment, as shown in FIGS. 1, 2, 3, and 4, the hole 41 on the side antenna 40 is a square hole, and the groove 42 extends from one side of the hole 41. To an edge; the size of the slot of the broken slot 41 and the slot width of the slot 42 match the induction field type when the first and second antennas 20 and 30 reflect electromagnetic wave signals, and Adjust the frequency band and bandwidth of the electromagnetic wave signal, as shown in Figures 5 and 6. Use the UHF electronic tag on the metal object 60 for identification and use. It can achieve high sensitivity and long-distance reading effect in the frequency band used. That is, most countries or regions will regulate the frequency band of RFID TAG. For example, the frequency band of use in Taiwan is between 920 ~ 930MH _Z , and it is pasted on the surface of metal objects through the structure of the embodiment of the electronic tag. Distance reading test, such as the test report in Annex I, conducted by the Finnish Voyntic Tagformance Lite Measurement System (UHF RFID) test instrument in the 800MHz _Z ~ 1000MH _Z frequency band, confirming that the above UHF electronic tag embodiment is structured. In aluminum plate On the surface, it only needs to occupy a space area of 74 (mm) x 22 (mm) of aluminum plate, and can reach a reading distance of 6 to 7 meters. Obviously, the electronic tag of the present invention has miniaturization, long reading distance and Excellent performance against metal.

According to the above embodiment, as shown in Figs. 11, 12, 13, 14, 15, and 16, the first antenna 20A, the second antenna 30A, and the side antenna 40A are collectively formed and formed on an insulating substrate sheet. Then, the first antenna 20A, the second antenna 30A, and the side antenna 40A are bonded to the first surface 11 of the insulating isolation plate 10 by bending the insulating substrate sheet 70. On the second surface 12 and the side surface 13, the first and second antennas 20A, 30A and the side antenna 40A can be stably completed on the insulating and isolating plate 10; as shown in Figs. 11, 12, 13, 14, 15, and 16, The insulating substrate sheet 70 is a polyimide (PI) or polyethylene terephthalate (PET) polymer plastic sheet, and a metal foil film (copper or aluminum foil film) is etched and formed on the surface. The antenna 20A, the second antenna 30A and the side antenna 40A, and the hole 41A, the groove 42A and the chip setting area 43A are formed on the side antenna 40A, so that the first and second antennas 20 , 30A and side antenna 40A can be easily produced by the general PC circuit board line process.

According to the above embodiment, as shown in FIGS. 17, 18, and 19, the insulating isolation plate 10A is a resin (PC) circuit board, and a metal is attached to the first surface 11A and the second surface 12A, respectively. A conductive foil film (copper or aluminum foil film) forms the first antenna 20B and the second antenna 30B, and then attaches the side antenna 40B to the side surface 13A of the insulating spacer sheet 10A and the first antenna. 20B and the second antenna 30B are electrically connected, so that the radio frequency identification RFID chip 50 on the side antenna 40B and the side antenna 40B is provided with the hole 41B, the groove 42B and the chip setting area 43B, which can be separated from the insulation. The plate 10A is independently mass-produced; as shown in FIGS. 17, 18, and 19, and the side antenna 40B described above is attached to a polyimide (PI) or polyethylene terephthalate (PET) insulating sheet 44 A metal foil film (copper or aluminum foil film) layer is used as an antenna surface, and the hole slot 41B and the groove 42B are etched and formed from the metal foil film layer, so that the side antenna 40B and the side antenna 40B are provided on the chip setting area. 43B radio frequency identification RFID chip 50 surface mount (electrical connection) setting, which can be completed in large quantities by the general PC circuit board manufacturing process Make.

The above description is only illustrative and not restrictive for the present invention. Those skilled in the art understand that many modifications, changes, or the like can be made without departing from the spirit and scope defined by the attached description. Effect, but all fall into the protection scope of the present invention.

Claims (8)

    A long-reading distance miniaturized metal-resistant electronic tag is an ultra-high frequency electronic tag, which includes an insulating isolation plate, a first antenna, a second antenna, a side antenna, and a radio frequency identification RFID chip; The insulating isolation plate is a plate formed of a non-conductive material, and has a first surface, a second surface, and a side surface. The first antenna is a first surface laminated on the insulating isolation plate. Conductive foil film antenna surface; the second antenna is a conductive foil film antenna surface overlaid on the second surface of the insulating isolation plate; and the side antenna is an overlying insulating insulation plate On the side surface of the conductive foil film antenna surface, a foil hole is provided on the foil film surface, and a hole is opened to the edge of the hole, and a chip is formed by the corresponding two groove sides of the groove. The radio frequency identification RFID chip is arranged on the chip setting area of the side antenna to form a match with the first antenna and the second antenna, and can be determined by the hole size of the broken slot and the slot of the slot. Wide, adjust the induction frequency band / bandwidth and sensitivity of the electromagnetic signal Field type; when the surface of the second antenna is mounted on a metal object, and an electronic tag reading device is used to read the identification code of the radio frequency identification RFID chip on the side antenna, the slot hole and The groove is located on the side between the first antenna and the second antenna, and a resonant cavity can be formed by the isolation of the insulating isolation plate, so that the first antenna located on the resonant cavity can be obtained by The second antenna reflects the electromagnetic wave signal on the metal object to generate resonance, causing the side antenna to sense the electromagnetic wave signal from the resonant cavity, and transmit the electromagnetic wave signal to the radio frequency identification RFID chip, or transmit the feedback signal of the radio frequency identification RFID chip. ; The overall UHF electronic tag structure, for the use of electronic tag reading devices to read the ID identification code on the tag, can be used in a simple, compact and convenient space without using space to achieve the effects of anti-metal interference and long reading distance.         According to the long-reading distance miniaturized anti-metal electronic tag according to item 1 of the scope of the patent application, wherein the second antenna is provided with a layer of double-sided adhesive on the outer surface, and a double-sided adhesive is provided on the double-sided adhesive. Release paper, just need to tear the release paper from the outer surface of the second antenna, you can use double-sided adhesive on the surface of various objects can produce the role of adhesion and fixation, so that UHF electronic labels can be easily used in a variety of Finished use on the surface of metal objects.         The long read distance miniaturized anti-metal electronic tag according to item 1 of the scope of the patent application, wherein the insulating and isolating plate is a plate made of a flexible insulating material, and the insulating and isolating plate can be Flexible, so that UHF electronic tags can be used on curved surfaces of metal objects.         The long read distance miniaturized anti-metal electronic tag according to item 1 of the patent application scope, wherein the hole on the side antenna is a square hole slot, and the slot is broken by one side of the hole slot Extending to an edge; the size of the slot of the broken slot and the slot width of the slot match the induced field pattern when the electromagnetic wave signal is reflected between the first and second antennas, and the frequency band of the electromagnetic wave signal that is sensed With the adjustment of bandwidth, the UHF electronic tag can be used on metal objects for identification and use. It can achieve high sensitivity and long-distance reading effect in the frequency band used.         According to the long-reading distance miniaturized anti-metal electronic tag according to item 1 of the scope of the patent application, the first antenna, the second antenna, and the side antenna are collectively disposed on an insulating substrate sheet, and then The first antenna, the second antenna, and the side antenna are bonded to the first surface, the second surface, and the side surface of the insulating isolation plate by bending the insulating substrate sheet, so that The first and second antennas and the side antennas can be stably completed on the insulating isolation plate.         According to the long-reading distance miniaturized anti-metal electronic tag according to item 5 of the patent application scope, wherein the insulating substrate sheet is a metal foil film etched on the surface of the polymer plastic sheet to form the first antenna, and the second antenna The antenna and the side antenna, and the hole slot is made on the side antenna, and the groove and the chip setting area are formed, so that the first and second antennas and the side antenna can be processed by a general PC circuit board, which is simple. Finish production.         According to the long-reading distance miniaturized anti-metal electronic tag according to item 1 of the scope of the patent application, wherein the insulating isolation plate is formed by attaching a metal conductive foil film on the first surface and the second surface, respectively. The first antenna and the second antenna, and then attach the side antenna to the side surface of the insulating partition sheet, and electrically connect the first antenna and the second antenna, so that the side antenna and the side are connected The radio frequency identification RFID chip set on the antenna's broken slot, slot and chip setting area can be produced independently from the insulating isolation plate.         The long read distance miniaturized anti-metal electronic tag according to item 7 of the scope of the patent application, wherein the side antenna is a metal foil film layer on an insulating sheet as the antenna surface, and is etched by the metal foil film layer The hole hole and the groove are formed, so that the radio frequency identification RFID chip can be set on the side antenna and the chip setting area of the side antenna, and can be produced in a large amount by the process of a general PC circuit board.