TWM604439U - Radio frequency identification tag - Google Patents

Abstract

A radio frequency identification tag includes a flexible insulating substrate, an antenna part, an integrated circuit element, a protective layer and a second bonding layer. The antenna part is arranged on a surface of the flexible insulating substrate. The antenna portion includes a feeding block along the surface, two meandering blocks connected to both ends of the feeding block, and two induction patterns respectively connected to the end of the meandering block away from the feeding block Block, the antenna portion includes a dielectric layer and a wireless sensing layer along a normal direction of the surface, the wireless sensing layer is provided on one side of the dielectric layer, the integrated circuit element is provided on the antenna portion, the The protective layer is arranged on the side of the integrated circuit element away from the antenna portion, and the second bonding layer is arranged on the side of the flexible insulating substrate away from the antenna portion.

Description

RFID tags

The model relates to a radio frequency identification tag, in particular to a radio frequency identification tag used for signal reading.

A radio frequency identification (RFID) tag mainly includes a radio frequency identification chip and an antenna. The radio communication signal is received through the antenna and then transmitted to the radio frequency identification chip to modify the internally recorded data or identification code. Radio frequency identification tags have the advantages of non-contact reading, fast reading speed, multiple readings at the same time, and not being affected by dirt, and are gradually being widely used in various fields, such as logistics, warehousing, manufacturing, and transportation. In order to expand the application scope of radio frequency identification technology and increase its popularity and convenience, related technologies need to be further improved.

The main purpose of the present invention is to improve the performance of current radio frequency identification tags.

To achieve the above objective, the present invention provides a radio frequency identification tag, which includes a flexible insulating substrate, the flexible insulating substrate includes a surface; an antenna part is provided on the surface of the flexible insulating substrate, the antenna The part along the surface includes a feeding block, two meandering blocks connected to both ends of the feeding block, and two sensing blocks respectively connected to the end of the meandering block away from the feeding block , The antenna portion includes a dielectric layer and a wireless sensing layer along a normal direction of the surface, the wireless sensing layer is disposed on one side of the dielectric layer, wherein the wireless sensing layer is a composite layer structure; The body circuit element is electrically connected to the wireless sensing layer; a first bonding layer is disposed on the antenna part; a protective layer is disposed on the first bonding layer and covers the antenna part through the first bonding layer And a second bonding layer disposed on the side of the flexible insulating substrate away from the antenna portion.

The new model has the advantages of high reliability and reliability.

The detailed description and technical content of the new model are described as follows in conjunction with the drawings:

Please refer to FIG. 1, the present invention provides a radio frequency identification tag 100 affixed to an object for reading by a reading device. In one embodiment, the RFID tag 100 is a RFID tag for a car, which is pasted on a car light or a windshield, and can also be pasted on other positions of the car body according to different usage requirements.

As shown in FIG. 1, the RFID tag 100 includes a bottom portion 10, a top portion 20, an antenna portion 30, and an integrated circuit element 40. The bottom portion 10 includes a flexible insulating substrate 11 and a second bonding layer. 12. The top portion 20 includes a first bonding layer 21 and a protective layer 22. The antenna portion 30 is disposed on a surface 111 of the flexible insulating substrate 11 and sandwiched between the bottom portion 10 and the top portion 20, The antenna portion 30 includes a wireless sensing layer 31 and a dielectric layer 32 along a normal direction of the surface 111. The integrated circuit element 40 is electrically connected to the wireless sensing layer 31. In this embodiment, the integrated circuit element 40 is disposed on the side of the antenna portion 30 away from the flexible insulating substrate 11. The first bonding layer 21 is disposed on the antenna portion 30, and the protective layer 22 is disposed on the first bonding layer 21 and covers the antenna portion 30 and the integrated circuit element 40 through the first bonding layer 21. The second bonding layer 12 is disposed on the side of the flexible insulating substrate 11 away from the antenna portion 30, that is, the protective layer 22 and the second bonding layer 12 are two opposite outer layers of the RFID tag 100, respectively For example, when the second bonding layer 12 is the bottom layer of the RFID tag 100, the protective layer 22 is the top layer of the RFID tag 100.

Further, in one embodiment, the flexible insulating substrate 11 is a flexible film made of polyethylene terephthalate (PET), so that the RFID tag can be based on the The shape of the vehicle lamp, the windshield or other positions to be pasted is bent to fit tightly thereon. The first bonding layer 21 can be made of organic material viscose or inorganic material transparent viscose or thermosetting pressure bonding glue.

In addition, the wireless sensing layer 31 is an antenna for sensing with the reading device. In one embodiment, the antenna includes a plurality of metal layers. In one embodiment, the wireless sensing layer 31 includes a first metal layer and a second metal layer. The first metal layer is copper (Cu) metal. The second metal layer is selected from the group consisting of silver (Ag), tin (Sn), titanium (Ti), nickel (Ni) or alloys thereof. The dielectric layer 32 is selected from the group consisting of nickel-chromium (Ni/Cr) alloy, nickel-copper (Ni/Cu) alloy, titanium-copper (Ti/Cu) alloy, nickel (Ni) metal or alloys thereof.

Please refer to FIG. 2, which is a schematic plan view of the RFID tag according to an embodiment of the new type. It is a schematic plan view along the AA plane of FIG. 1, and the antenna portion 30 and the integrated circuit element 40 It is regarded as being arranged on the bottom 10. The antenna portion 30 includes a feed block 301, two meandering blocks 302, and two sensing blocks 303 along the surface 111 of the flexible insulating substrate 11. The two meandering blocks 302 are respectively connected to the feeder Two ends of the electrical block 301, and the two sensing blocks 303 are respectively connected to the end of the meander block 302 away from the feed block 301, in other words, the two meander block 302 and the second sensing block 303 is symmetrically arranged with the power feeding block 301 as the center. Further, the feeding block 301 is substantially a rectangle with a hollow in the middle, and four corners form arc chamfers. One side of the feeding block 301 is electrically connected to the integrated circuit element 40. connection.

The meandering block 302 has a plurality of vertical sections 3021 and a plurality of horizontal sections 3022. The longitudinal sections 3021 are spaced apart from each other and arranged in parallel, and the transverse sections 3022 are respectively connected to the adjacent longitudinal sections 3021. According to this, the meandering block 302 has a plurality of bent structures, and thus forms a plurality of first The recesses 3023a and a plurality of second recesses 3023b, the first recesses 3023a and the second recesses 3023b are arranged at intervals between the longitudinal sections 3021, and are recessed in opposite directions according to the positions of the transverse sections 3022. Furthermore, the sensing block 303 is connected to an end of the meandering block 302 away from the feeding block 301 and has a rectangular area 3031 and an extended area 3032. In this embodiment, the rectangular area 3031 is a substantially rectangular shape with circular arc chamfers. One corner of the rectangular area 3031 extends laterally and is connected to one of the lateral sections 3022 of the meandering block 302, and the extension area 3032 is disposed at the other corner of the rectangular area 3031, facing the direction of the meandering block 302 Extend laterally. In the embodiment of FIG. 2, the RFID tag 100 is attached to the vehicle lamp and has a size of 111 mm×12 mm, and the size of the antenna portion 30 is 108 mm×5 mm.

In the embodiment of FIG. 2, it is suitable for installation on a car lamp, in other words, it is suitable for installation on a plastic or metal surface. Please refer to FIG. 3, which is a schematic plan view of a radio frequency identification tag according to another embodiment of the present invention. It is a schematic plan view along the AA plane of FIG. 1. In this embodiment, one end of the meandering block 302 is connected to the feeder. The blocks 301 are connected and have three longitudinal sections 3021 and two horizontal sections 3022. The longitudinal sections 3021 are spaced apart from each other and arranged in parallel, and the transverse sections 3022 are respectively connected to the adjacent longitudinal sections 3021. According to this, the meandering block 302 has a bent structure, thereby forming a first recess 3023a And a second recess 3023b, the first recess 3023a and the second recess 3023b are respectively disposed between the longitudinal section 3021, and are recessed in opposite directions according to the position of the transverse section 3022. In addition, the sensing block 303 is connected to the end of the meandering block 302 away from the feeding block 301, the sensing block 303 is a substantially rectangular shape with a rounded chamfer, and one corner of the sensing block 303 extends laterally It is connected to one of the longitudinal sections 3021 of the meandering block 302. In the embodiment of FIG. 3, the RFID tag 100 is attached to the windshield and its size is 67 mm x 26 mm, and the size of the antenna portion 30 is 62 mm x 14 mm.

In the embodiment of FIG. 3, it is suitable for installation on a vehicle window, in other words, it is suitable for installation on a glass surface.

Next, please continue to refer to FIG. 1, the protective layer 22 is used to shield the dielectric layer 32, the integrated circuit element 40 and the wireless sensing layer 31 to prevent rainwater from penetrating from the surface of the RFID tag 100 during implementation The integrated circuit element 40 and the wireless sensing layer 31 affect the sensing capability. In one embodiment, the protective layer 22 may be a transparent material. Furthermore, the second bonding layer 12 includes an adhesive layer 121 and a release paper layer 122. The adhesive layer 121 can be made of organic material adhesive or inorganic material transparent adhesive or thermosetting adhesive. The release paper layer 122 can be selectively peeled from the adhesive layer 121. In this way, the user can peel off the release paper layer 122 and stick the RFID tag 100 to a specific position on the vehicle light or the windshield through the adhesive layer 121.

Please refer to FIG. 4, which is a schematic diagram of the planar structure of a radio frequency identification tag according to an embodiment of the new type. The antenna portion 30 can be defined to include a first block 30a and a second block 30b. The first block 30a and The second blocks 30b are connected by a plurality of connection points 30c. The pattern formed by the combination of the first block 30a and the second block 30b can correspond to a first application, and the single first block 30a can correspond to a second application. In this way, when it is intended to be used in the first application, the pattern formed by the combination of the first block 30a and the second block 30b is used; and when it is intended to be used in the second application, the The two blocks 30b are torn away from the flexible insulating substrate 11 along the connection point 30c, leaving the first block 30a, so as to achieve the purpose of multi-purpose. In this embodiment, the pattern formed by the combination of the first block 30a and the second block 30b is used for pasting on car lights, and the single second block 30b is used for pasting on car windows.

In one embodiment, the RFID tag 100 can be attached to a transparent background material, such as glass or transparent plastic, and the lines of the RFID tag 100 on the front or back of the material can show a metallic color texture, especially It is suitable for applications in environments requiring high reliability, reliability and appearance requirements such as the transportation Internet of things or the optoelectronic industry. In view of this, the present invention has the advantages of high reliability and reliability.

100: RFID tag 10: bottom 11: Flexible insulating substrate 111: Surface 12: The second bonding layer 121: Adhesive layer 122: release paper layer 20: top 21: The first bonding layer 22: protective layer 30: Antenna section 31: Wireless sensing layer 32: Dielectric layer 301: Feed block 302: meandering block 3021: Longitudinal section 3022: horizontal section 3023a: The first recess 3023b: second recess 303: Sensor block 3031: rectangular area 3032: extended area 30a: first block 30b: second block 30c: connection point 40: Integrated circuit components

"Figure 1" is a schematic diagram of the laminated structure of a radio frequency identification tag according to an embodiment of the present invention. "Figure 2" is a schematic diagram of the planar structure of a radio frequency identification tag according to an embodiment of the present invention. "Figure 3" is a schematic diagram of a planar structure of a radio frequency identification tag according to another embodiment of the present invention. "Figure 4" is a schematic diagram of the planar structure of a radio frequency identification tag according to another embodiment of the present invention.

100: RFID tag

10: bottom

11: Flexible insulating substrate

111: Surface

12: The second bonding layer

121: Adhesive layer

122: release paper layer

20: top

21: The first bonding layer

22: protective layer

30: Antenna section

31: Wireless sensing layer

32: Dielectric layer

40: Integrated circuit components

Claims (10)

A radio frequency identification tag, including; A flexible insulating substrate, the flexible insulating substrate including a surface; An antenna portion is provided on the surface of the flexible insulating substrate, and the antenna portion includes a feeding block, two meandering blocks connected to both ends of the feeding block, and two respectively connected along the surface On the sensing block at an end far from the feeding block from the meandering block, the antenna portion includes a dielectric layer and a wireless sensing layer along a normal direction of the surface, and the wireless sensing layer is disposed on the dielectric layer One side An integrated circuit element electrically connected to the wireless sensing layer; A first bonding layer disposed on the antenna part; A protective layer disposed on the first bonding layer and covering the antenna portion through the first bonding layer; and A second bonding layer is arranged on the side of the flexible insulating substrate away from the antenna part. The radio frequency identification tag according to claim 1, wherein the wireless sensing layer is a composite layer structure. The radio frequency identification tag according to claim 2, wherein the wireless sensing layer includes a plurality of metal layers, the metal layers include a first metal layer and a second metal layer, the first metal layer is copper metal, and the The second metal layer is selected from the group consisting of silver, tin, titanium, nickel metal and alloys thereof. The radio frequency identification tag of claim 1, wherein the dielectric layer is a single layer structure or a composite layer structure. The RFID label according to claim 1, wherein the second bonding layer includes an adhesive layer and a release paper layer selectively peeled from the adhesive layer. The radio frequency identification tag according to any one of claims 1 to 5, wherein the feed block is a rectangle with a hollow in the middle, and one side of the feed block is connected to the integrated circuit element. Sexual connection. The radio frequency identification tag according to claim 6, wherein one end of each meandering block is connected to the feeding block, and includes a plurality of longitudinal segments spaced apart from each other and arranged in parallel, and a plurality of adjacent ones are respectively connected The two transverse sections of the longitudinal section, the plurality of first recesses, and the plurality of second recesses are arranged at intervals, wherein the first recesses and the second recesses are arranged at intervals between the longitudinal sections and are recessed in opposite directions. The radio frequency identification tag according to claim 7, wherein the sensing block is connected to an end of the meandering block away from the feeding block, and has a rectangular area connected to one of the horizontal segments, and a rectangular area An extended area extending laterally from one corner of the area toward the meandering block. The radio frequency identification tag according to claim 6, wherein one end of each meandering block is connected to the feeding block, and has three longitudinal sections spaced apart from each other and arranged in parallel, and two are respectively connected to two adjacent ones. The transverse section of the longitudinal section, a first recess, and a second recess, wherein the first recess and the second recess are respectively arranged between the three longitudinal sections and are recessed in opposite directions. The radio frequency identification tag according to claim 9, wherein the sensing block is connected to an end of the meandering block away from the feeding block, and the sensing block is a rectangle.

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