Large-size reconstructed RFID tag
By designing split-type large-size reconstruction RFID tags, using split-type design and binding machine processing, the problem of tag length exceeding the bound machine range is solved, and efficient production and performance improvement of large-size RFID tags are achieved.
Patent Information
- Application Number
- CN202421371141.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-17
AI Technical Summary
Existing UHF RFID tags cannot be produced in some special applications because the tag length exceeds the processing range of the binder.
A large-size reconstruction RFID tag is designed, adopting a split design, including the first and second bearing substrates, with feed antennas and radiation patches respectively, and the connection between the feed antennas and radiation patches is achieved through binding and machining of the radio frequency chips, and the connection between the feed antennas and the radiation patches is achieved through the connection between the two bearing substrates.
It realizes efficient production of large-size RFID tags, significantly improves the consistency and yield of RF tag performance, and solves the problem that the tag length exceeds the range of the binding machine.
Smart Images
Figure CN222600236U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a large-size reconstructible RFID tag, belonging to the technical field of radio frequency. Background Art
[0002] Ultra-high frequency RFID (Radio Frequency Identification) technology is an automatic identification technology that allows items with RFID tags to be identified and tracked through radio waves. Ultra-high frequency RFID tags are widely used in clothing, logistics, asset management and other fields due to their advantages such as passivity, group reading, low cost and long-distance identification.
[0003] The processing of UHF RFID tags is completed by binding machines, but the binding machines have certain parameter limitations. For example, in some special applications, when the length of the label exceeds the processing range of the binding machine, the binding machine cannot produce it. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a large-size reconstructed RFID tag, which adopts a split design and is processed by a binding machine to efficiently obtain a large-size RFID tag.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the utility model designs a large-size reconstructed RFID tag, including a radio frequency chip, a first reconstructed structure composed of a feeding antenna attached to one surface of a first carrier substrate, and a second reconstructed structure composed of at least one radiation patch attached to one surface of a second carrier substrate, wherein the radio frequency chip is arranged on the feeding antenna on the surface of the first carrier substrate; the first reconstructed structure and the second reconstructed structure are connected to each other face to face in a posture that the surface on which the feeding antenna is arranged on the first carrier substrate and the surface on which the radiation patch is arranged on the second carrier substrate are opposite to and parallel to each other, and each radiation patch in the second reconstructed structure is in contact with the feeding antenna in the first reconstructed structure, and along the projection direction perpendicular to the surface of the first carrier substrate, the projection of the feeding antenna is located within the projection of the feeding antenna and all the radiation patches as a whole.
[0006] As a preferred technical solution of the utility model: the feeding antenna includes a main structure, the main structure includes a main trace, the main trace is attached to one of the surfaces of the first supporting substrate, the main trace is not connected end to end, or the main trace is connected end to end to form an inductor loop, the radio frequency chip is arranged on the main trace, based on the first reconstruction structure and the second reconstruction structure are connected to each other face to face, and each radiation patch in the second reconstruction structure is respectively in contact with and connected to the main trace.
[0007] As a preferred technical solution of the utility model: the main structure also includes a connecting line, based on the main lines being connected end to end to form an inductance loop, the connecting line is connected to the edge of the inductance loop, based on the first reconstruction structure and the second reconstruction structure being connected to each other face to face, each radiation patch in the second reconstruction structure is respectively contacted and connected with the connecting line.
[0008] As a preferred technical solution of the utility model: based on the first reconstruction structure and the second reconstruction structure being in face-to-face contact with each other, each radiation patch in the second reconstruction structure is contacted and connected with the position of the feeding antenna where it is contacted by overlapping areas to achieve contact with each other.
[0009] As a preferred technical solution of the utility model: the feed antenna also includes at least one connecting patch with a width greater than the routing width, the number of the connecting patches is equal to the number of the radiating patches in the second reconstruction structure, and each connecting patch corresponds to each radiating patch one by one, each connecting patch is respectively arranged on the surface of the feed antenna on the first supporting substrate, and each connecting patch is respectively connected to the position where the corresponding radiating patch contacts the main structure, based on the first reconstruction structure and the second reconstruction structure being face-to-face connected to each other, each radiating patch in the second reconstruction structure is respectively in contact with the corresponding connecting patch with an overlapping area, thereby realizing indirect contact connection between each radiating patch in the second reconstruction structure and the main structure in the feed antenna.
[0010] As a preferred technical solution of the present utility model: the second supporting substrate is a supporting substrate with a rectangular surface. Based on the first reconstruction structure and the second reconstruction structure being face-to-face connected to each other, along the projection direction perpendicular to the surface of the first supporting substrate, the projection of the first reconstruction structure is located within the projection of the second reconstruction structure.
[0011] As a preferred technical solution of the present utility model: the number of radiation patches on the second supporting substrate is equal to 2, and the radiation patches are arranged in sequence along the long side direction of the rectangular surface of the second supporting substrate. Based on the first reconstruction structure and the second reconstruction structure being face-to-face connected to each other, along the projection direction perpendicular to the surface of the first supporting substrate, the projection of the main structure in the feeding antenna is located between the projections of the two radiation patches.
[0012] As a preferred technical solution of the utility model: based on the first reconstruction structure and the second reconstruction structure being face-to-face connected to each other, along the projection direction perpendicular to the surface of the first supporting substrate, the projection of the feeding antenna and the projection of the two radiation patches are overall axially symmetrical.
[0013] The large-size reconstructible RFID tag described in the utility model adopts the above technical solution and has the following technical effects compared with the prior art:
[0014] The utility model designs a large-size reconstructed RFID tag, which adopts a split design. A feeding antenna and a radiation patch are respectively attached to a first carrier substrate and a second carrier substrate in sequence. Only for the feeding antenna attached to the first carrier substrate, a binding machine is used to perform a binding operation on the radio frequency chip, and then the connection between the two carrier substrates is combined to achieve the connection between the feeding antenna and the radiation patch, thereby forming a large-size RFID tag with good performance. Compared with the labeling method of the Strap structure, the reconstructed structure of the patent can significantly improve the consistency and yield rate of the radio frequency tag performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the first reconstructed structure in the large-size reconstructed RFID tag designed by the utility model;
[0016] Figure 2 It is a schematic diagram of the second reconstruction structure in the large-size reconstructible RFID tag designed by the utility model;
[0017] Figure 3 It is a schematic diagram of the overall structure of the large-size reconstructible RFID tag designed by the utility model.
[0018] Among them, 1. RF chip, 2. first carrier substrate, 3. second carrier substrate, 4. radiation patch, 5. inductor ring, 6. connecting trace, 7. connecting patch. DETAILED DESCRIPTION
[0019] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0020] The utility model designs a large-size reconstructed RFID tag. In practical application, the specific design includes a radio frequency chip 1, and Figure 1 The first reconstructed structure is formed by attaching a feeding antenna to one surface of the first supporting substrate 2. Figure 2 As shown, a second reconstructed structure is formed by attaching at least one radiation patch 4 to one surface of the second carrier substrate 3, wherein the RF chip 1 is disposed on the feeding antenna on the surface of the first carrier substrate 2; Figure 3 As shown, the surface on which the feeding antenna is arranged on the first supporting substrate 2 and the surface on which the radiation patch 4 is arranged on the second supporting substrate 3 are opposite to and parallel to each other, the first reconstructed structure and the second reconstructed structure are connected to each other face to face, and each radiation patch 4 in the second reconstructed structure is in contact with and connected to the feeding antenna in the first reconstructed structure, and along the projection direction perpendicular to the surface of the first supporting substrate 2, the projection of the feeding antenna is located within the projection of the feeding antenna and all the radiation patches 4 as a whole.
[0021] In practical applications, such as Figure 1The specific design of the above-mentioned feeding antenna includes a main structure, which includes a main line, which is attached to one surface of the first supporting substrate 2, and the main line is not connected at the beginning and the end, or the main line is connected at the beginning and the end to form an inductor loop 5, and the RF chip 1 is arranged on the main line. Figure 3 As shown, based on the first reconstruction structure and the second reconstruction structure being connected to each other face to face, each radiation patch 4 in the second reconstruction structure is respectively in contact with and connected to the main trace.
[0022] And based on the main wiring in the main structure being connected end to end to form an inductor loop 5, as shown Figure 1 As shown, the main structure is further designed to include a connecting wire 6, which is connected to the edge of the inductor ring 5. Figure 3 As shown, based on the first reconstruction structure and the second reconstruction structure being face-to-face connected to each other, each radiation patch 4 in the second reconstruction structure is respectively in contact with and connected to the connecting wire 6 , that is, the connecting wire 6 is added, and each radiation patch 4 is indirectly connected to the inductor ring 5 via the connecting wire 6 .
[0023] like Figure 3 As shown, with the first reconstruction structure and the second reconstruction structure being face-to-face with each other and each radiation patch 4 being respectively contact-connected with the feeding antenna, a specific design is that each radiation patch 4 in the second reconstruction structure is respectively contact-connected with the position where it is contact-connected with the feeding antenna in such a way that the overlapping areas are in contact with each other.
[0024] And in practical applications, in view of the above-mentioned contact connection method of overlapping areas, the feeding antenna is further designed to include at least one connecting patch 7 with a width greater than the width of the trace, such as Figure 1 As shown, the number of connecting patches 7 is equal to the number of radiating patches 4 in the second reconstructed structure, and each connecting patch 7 corresponds to each radiating patch 4 one by one, each connecting patch 7 is respectively arranged on the surface where the feeding antenna is arranged on the first supporting substrate 2, and each connecting patch 7 is respectively connected to the position where the corresponding radiating patch 4 contacts the connecting main structure, as shown in FIG. Figure 3 As shown, based on the face-to-face connection between the first reconstruction structure and the second reconstruction structure, each radiation patch 4 in the second reconstruction structure is in contact with the corresponding connecting patch 7 in the overlapping area, thereby realizing indirect contact connection between each radiation patch 4 in the second reconstruction structure and the main structure in the feeding antenna.
[0025] According to the large-size reconstructed RFID tag designed as above, in actual application, the second carrier substrate 3 is designed to be a carrier substrate with a rectangular surface, based on the first reconstructed structure and the second reconstructed structure being connected to each other face to face, along the projection direction perpendicular to the surface of the first carrier substrate 2, the projection of the first reconstructed structure is located within the projection of the second reconstructed structure; and in application, the number of radiation patches 4 on the second carrier substrate 3 is specifically designed to be equal to 2, and each radiation patch 4 is arranged in sequence along the long side direction of the rectangular surface of the second carrier substrate 3 at intervals, based on the first reconstructed structure and the second reconstructed structure being connected to each other face to face, along the projection direction perpendicular to the surface of the first carrier substrate 2, the projection of the main structure in the feeding antenna is located between the projections of the two radiation patches 4, and the projection of the feeding antenna and the projections of the two radiation patches 4 are axially symmetrical as a whole; in actual application, firstly, a binding machine is used to bind the RF chip 1 to the feeding antenna of the first reconstructed structure, and then the first reconstructed structure and the second reconstructed structure are connected to each other face to face, and the two radiation patches 4 in the second reconstructed structure are respectively connected to the corresponding connecting patches 7 to contact each other in the overlapping area, that is, a complete large-size reconstructed RFID tag is formed.
[0026] Based on the specific structural design of the above two radiation patches 4, and corresponding to the design of the above connecting patch 7, taking into account that the laminating equipment has a certain deviation, the left radiation patch 4 and the right radiation patch 4 in the second reconstruction structure should have a certain length and width, so that the first reconstruction structure and the second reconstruction structure can still have a certain overlapping area after the maximum deviation lamination, so that the overall label performance is intact; and because the main function of the radiation patch 4 in the second reconstruction structure is to expand the radio frequency performance in the first reconstruction structure, the size of each radiation patch 4 in the second reconstruction structure is adjustable, that is, to adjust its radio frequency performance in the first reconstruction structure; in addition, in actual applications, the materials of the feeding antenna, the connecting patch 7 in the first reconstruction structure, and each radiation patch 4 in the second reconstruction structure are conductors or conductive inks, and the first carrier substrate 2 and the second carrier substrate 3 are both insulators.
[0027] The large-size reconstructed RFID tag designed by the above technical scheme adopts a split design, and the first carrier substrate 2 and the second carrier substrate 3 are respectively affixed with a feeding antenna and a radiating patch 4. Only for the feeding antenna affixed on the first carrier substrate 2, a binding machine is used to perform a binding operation on the RF chip 1, and then the connection between the two carrier substrates is combined to realize the connection between the feeding antenna and the radiating patch, thereby forming a large-size RFID tag with good performance. Compared with the labeling method of the Strap structure, the reconstructed structure of this patent can significantly improve the consistency and yield rate of the RF tag performance.
[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.
Claims
1. A large-size reconfigurable RFID tag, characterized in that: The invention comprises a radio frequency chip (1), a first reconfiguration structure formed by attaching a feeding antenna to one surface of a first carrier substrate (2), and a second reconfiguration structure formed by attaching at least one radiation patch (4) to one surface of a second carrier substrate (3), wherein the radio frequency chip (1) is arranged on the feeding antenna on the surface of the first carrier substrate (2); the surface on which the feeding antenna is arranged on the first carrier substrate (2) and the surface on which the radiation patch (4) is arranged on the second carrier substrate (3) are opposite to and parallel to each other, the first reconfiguration structure and the second reconfiguration structure are in face-to-face contact with each other, and each radiation patch (4) in the second reconfiguration structure is in contact with and connected to the feeding antenna in the first reconfiguration structure; and along a projection direction perpendicular to the surface of the first carrier substrate (2), the projection of the feeding antenna is located within the projection of the feeding antenna and all the radiation patches (4) as a whole.
2. The large-size reconfigurable RFID tag according to claim 1, characterized in that: The feeding antenna comprises a main structure, the main structure comprises a main trace, the main trace is attached to one surface of a first supporting substrate (2), the main trace is not connected end to end, or the main trace is connected end to end to form an inductor loop (5), the radio frequency chip (1) is arranged on the main trace, based on the first reconstruction structure and the second reconstruction structure being connected to each other face to face, and each radiation patch (4) in the second reconstruction structure is respectively in contact with and connected to the main trace.
3. The large-size reconfigurable RFID tag according to claim 2, characterized in that: The main structure further comprises a connecting line (6), based on the main lines being connected end to end to form an inductor loop (5), the connecting line (6) being connected to the edge of the inductor loop (5), based on the first reconstructed structure and the second reconstructed structure being connected to each other face to face, each radiation patch (4) in the second reconstructed structure is respectively in contact with and connected to the connecting line (6).
4. A large-size reconfigurable RFID tag according to claim 2 or 3, characterized in that: Based on the first reconstruction structure and the second reconstruction structure being in face-to-face contact with each other, each radiation patch (4) in the second reconstruction structure is contact-connected with the position where it is contact-connected with the feeding antenna in a manner where the overlapping areas are in contact with each other.
5. The large-size reconfigurable RFID tag according to claim 4, characterized in that: The feed antenna further comprises at least one connection patch (7) having a width greater than the width of the trace, the number of the connection patches (7) being equal to the number of the radiation patches (4) in the second reconfiguration structure, and each connection patch (7) corresponding to each radiation patch (4) one by one, each connection patch (7) being arranged on the surface of the feed antenna on the first carrier substrate (2), and each connection patch (7) being connected to a position of the main structure where the corresponding radiation patch (4) is in contact, based on the first reconfiguration structure and the second reconfiguration structure being in surface contact with each other, each radiation patch (4) in the second reconfiguration structure is in contact with the corresponding connection patch (7) in an overlapping area, thereby achieving indirect contact connection between each radiation patch (4) in the second reconfiguration structure and the main structure in the feed antenna.
6. The large-size reconfigurable RFID tag according to claim 5, characterized in that: The second supporting substrate (3) is a supporting substrate with a rectangular surface. Based on the first reconstructed structure and the second reconstructed structure being in surface contact with each other, along the projection direction perpendicular to the surface of the first supporting substrate (2), the projection of the first reconstructed structure is located within the projection of the second reconstructed structure.
7. The large-size reconfigurable RFID tag according to claim 6, characterized in that: The number of the radiation patches (4) on the second carrier substrate (3) is equal to 2, and the radiation patches (4) are arranged in a distributed manner in sequence along the long side direction of the rectangular surface of the second carrier substrate (3). Based on the first reconstructed structure and the second reconstructed structure being in face-to-face contact with each other, along the projection direction perpendicular to the surface of the first carrier substrate (2), the projection of the main structure in the feed antenna is located between the projections of the two radiation patches (4).
8. The large-size reconfigurable RFID tag according to claim 7, characterized in that: Since the first reconstruction structure and the second reconstruction structure are connected to each other face to face, along the projection direction perpendicular to the surface of the first supporting substrate (2), the projection of the feeding antenna and the projection of the two radiation patches (4) are overall axially symmetrical.