Transponder tag for containers, system and method for manufacturing transponder tag

Abstract

The invention relates to a transponder tag (2) for a container (3), comprising a carrier layer (20) and an RFID functional unit, which has an RFID chip (18) and an antenna structure (10) coupled to the RFID chip, the RFID chip and the antenna structure being coupled to the carrier layer (20). The antenna arrangement (10) has a first antenna section (11), a second antenna section (12) and an antenna loop (17) which is arranged between the first and second antenna sections (11, 12) and is coupled to the first and second antenna sections. At least one of the two antenna sections (11, 12) comprises a meandering-shaped first antenna arm (13) and a meandering-shaped second antenna arm (14), which are arranged at a predetermined distance (D1, D2, D3) from each other and are electromagnetically coupled to each other.

Description

Technical Field

[0001] The present invention relates to a transponder label for a container, which provides a reliable electronic marking for, for example, a pharmaceutical container in a simple and cost-effective manner. The present invention also relates to a system having such a transponder label. The present invention also relates to a method for manufacturing such a transponder label. Background Art

[0002] Labeling devices generally include labels, which can be used for authorization, identification, and authentication or for proof of origin. In particular, such labeling devices are used to provide information about the contents or for traceability. This also relates to containers in the pharmaceutical and medical fields, the contents of which should be reliably marked. Summary of the Invention

[0003] The object on which the present invention is based is to contribute to reliably and comfortably labeling a container in a simple and cost-effective manner.

[0004] The object is achieved by the features of the independent claims. Advantageous refinements are specified in the respective dependent claims.

[0005] According to one aspect of the present invention, a transponder label for a container has a carrier layer and an RFID functional unit, and the RFID functional unit is provided on the carrier layer. The carrier layer is configured as a plastic film, such as polyethylene terephthalate (PET) for example. The RFID functional unit includes an RFID chip and an antenna structure coupled to the RFID chip. The antenna structure has a first antenna segment and a second antenna segment. The antenna structure also has an antenna loop, which is provided between the first antenna segment and the second antenna segment and is coupled to the first antenna segment and the second antenna segment. At least one of the two antenna segments includes a meandering first antenna arm and a meandering second antenna arm, and the first antenna arm and the second antenna arm are arranged at a preset distance from each other and are electromagnetically coupled to each other.

[0006] By means of the described transponder label, a particularly reliable RFID functionalization of containers such as syringes, injection vials, or pharmaceutical ampoules can be achieved. In addition, the transponder label is also suitable for other medical or pharmaceutical containers or primary packages. The transponder label can also be used for other articles for which electronic marking is beneficial. The specifically configured and adjacently arranged meandering antenna arms are inductively and capacitively coupled to each other, so that the configured and controllably introduced modes are increased, and the antenna structure realizes a multi-mode RFID antenna having multiple resonance frequencies.

[0007] The deliberately introduced resonant frequency can be coordinated in a targeted manner with a preset application scenario, such that despite different states or influences, containers provided with transponder tags can still be reliably electronically marked and read. The knowledge in connection with the present invention is that RFID marking is challenging due to different external boundary conditions. Such external boundary conditions result, for example, from the small size of the main container, such that the space available for the antenna is strongly restricted. In addition, proximity to dissipative media such as glass, water or saline solutions can significantly reduce the performance of the RFID unit. Furthermore, with the same size of the main container, for example, the liquid level of the respective drug can behave differently.

[0008] Such boundary conditions cause an undesired frequency shift of the resonant frequency and may cause the resonant frequency to no longer be within the reading window of the reading device. According to the official specifications, an RFID reading device for reading an RFID unit is configured, for example, to a reading range of 865 MHz - 868 MHz. For example, a container in which only half of the contents remain can no longer be electronically read at the distance required for the corresponding application and the data stored in the RFID chip cannot be accessed.

[0009] By means of the described transponder tags, a plurality of resonant frequencies are provided in a targeted manner via the antenna structure, such that despite the frequency shift of the resonant frequency, different resonances that enter the reading range of the reading device due to the shift can still be utilized. Thus, independent of the previously described boundary conditions, it is also possible to communicate via RFID with the reading device and to reliably electronically identify the main container. The antenna structure is configured in coordination with a preset reading device for reading in terms of its radiation characteristics and reading effective radius.

[0010] For example, the antenna structure has two meandering antenna arms on one side of the antenna loop, which antenna arms form electromagnetically coupled resonators as dipole antennas. For example, only one antenna arm is provided on the other side of the antenna loop, which antenna arm is equipped with another dipole resonator. Therefore, depending on the coupling strength of the individual antenna components relative to each other, four resonance frequencies can be provided in a targeted manner through the antenna structure together with the internal antenna loop, which are configured as 500 MHz, 865 MHz, 975 MHz and 1050 MHz for an unfilled container, for example. In this state, the resonance at 865 MHz will optimally fall into the reading range of the reading device. In the case of half the liquid level, a frequency shift occurs, so that, for example, a resonance frequency of 975 MHz enters the reading range of the RFID reading device (865 MHz-868 MHz in the example). If the container is completely filled and has a maximum liquid level, a further frequency shift accompanying this can be considered, wherein the initial resonance frequency is 1050 MHz, and the container can also be electronically read in this state. The frequency shift proceeds towards lower frequencies as the level of the dissipative medium increases.

[0011] In conjunction with the present invention, it is known that in an uncoupled system the number of modes can be influenced in a targeted manner by coupling the antenna arms and, if necessary, the inner antenna loop. For example, at least one of the two resonances is split and, in a first approximation, three modes occur. If, for such a system with antenna arms, the inner antenna loop is also considered, for example, six oscillation modes can be realized and utilized.

[0012] According to an improved version of the transponder tag, the two antenna sections each have a first meandering antenna arm and a second meandering antenna arm. The corresponding antenna arms are arranged at a preset distance from each other and are electromagnetically coupled to each other. Therefore, it is also possible to form and provide additional resonant frequencies for reading via the antenna structure. According to this embodiment with two meandering antenna arms on each side of the antenna ring, six resonant frequencies can be configured, which are preferably coordinated with different edge joints so that particularly safe and reliable electronic reading of the RFID chip and identification of the container can be achieved. In addition, the antenna structure of the transponder tag can also have three or more meandering antenna arms in the corresponding antenna sections, which are preset and spaced apart so that they are electromagnetically coupled to each other and provide resonant frequencies with higher moduli.

[0013] According to an improvement of the transponder tag, the respective first antenna arm and the respective second antenna arm have a rectangular meander shape, each having a plurality of straight segments with a preset length. The length of the individual segments and the respective total length of the antenna arms influence the inductive and capacitive coupling with one another, thereby determining the coupling strength and the configuration of the desired resonant frequency. The rectangular meander shape of one or more antenna arms allows a particularly space-saving and compact antenna structure to be realized. Alternatively or in addition, the antenna arms can have a wavy or circular meander extension. Furthermore, the antenna arms can also have different meander-shaped extensions in sections or completely. The antenna arms are each designed so that a preset electromagnetic coupling can be realized between them, which electromagnetic coupling allows a controlled configuration of a plurality of resonant frequencies.

[0014] The antenna arm is connected to the inner antenna ring on the one hand and has a free end section on the other hand. Here, the antenna arm can be designed as a continuous line or can alternatively have a planar antenna component at its free end section, which can beneficially influence the performance and reading radius of the RFID functional unit.

[0015] Furthermore, the respective antenna arms can be connected to the inner antenna loop at a common coupling point or at different coupling points. Different coupling positions form different phase points and can also influence the configuration of different modes and can be taken into account accordingly when designing the antenna structure.

[0016] Furthermore, the line width of the antenna arms also has an influence on the formation of the electromagnetic coupling and the resonance frequency. Accordingly, the respective first antenna arm and / or the second antenna arm can have a line width of between 150 μm and 1000 μm. The line width here refers to the extension parallel to the plane of the carrier layer. The line width thus corresponds to the extension of the respective antenna arm in a top view of the transponder tag.

[0017] The total length of the individual antenna arms determines the fundamental frequency of the uncoupled oscillating system. Accordingly, the corresponding first antenna arm and / or second antenna arm can have a total length of between 20 mm and 120 mm, for example.

[0018] The overall length refers to the extension of the antenna arm along its main linear shape from the free end section to its coupling point with the antenna ring.

[0019] The length of the section of the antenna arms over which they extend parallel determines a measure of the coupling strength. In this region, the two antenna arms are coupled both inductively and capacitively, resulting in a splitting of the resonance frequency relative to an uncoupled system. The length of the section can range from almost 0 mm to the total length of the individual antenna arms.

[0020] In particular, the segment length and / or the total length of the respective first and / or second antenna arm can be designed to be coordinated with the container to be labeled. The same applies to the line width of the respective first and / or second antenna arm and the spacing between two adjacent antenna arms, which are preferably designed to be coordinated with the container to be labeled. In this case, the material of the container, the intended contents of the container and the possible fill level of the contents can be taken into account and taken into account when designing the antenna structure. The antenna structure can also be provided for direct attachment to the container closure or the container body, so that the antenna structure, in particular with regard to its length and its width, and the circumference of the container and / or the surface provided for attachment can be designed to be coordinated with each other.

[0021] The transponder tag can also have a security feature which can indicate whether a container for which the transponder tag is provided has been opened or whether an attempt has been made to manipulate the container. For example, perforations can be present and can be combined with punching or branching in order to leave clearly visible damage to the transponder tag, for example, after the container has been opened. The transponder tag can also be arranged in particular at the transition between the container closure and the container body, so that opening the container or attempting to remove the transponder tag causes targeted destruction. Alternatively or in addition, the transponder tag can have a film or a film element which has a predetermined tear resistance.

[0022] The carrier layer of the transponder label comprises in particular an adhesive layer, so that the transponder label can be easily and reliably arranged on the main closure element and / or the body of the container by means of adhesive bonding. The transponder label can be designed as a single layer or as a multi-layer. The transponder label can be implemented, for example, as a wrap-around or cover wrap-around label. It surrounds the circumference of the container closure and / or the container body with respect to the longitudinal axis of the container. Alternatively, the transponder label can also be designed in terms of its geometry so that it only partially covers the circumference of the container.

[0023] According to a further aspect, the invention comprises the use of a configuration of the described transponder label for a container, such as a syringe, an injection vial or a vial, having a container body and a container closure.

[0024] According to a further aspect of the invention, a system comprises a container, for example one of the previously described containers having a container body and a container closure, and a configuration of the described transponder label connected to the container body and / or the container closure.

[0025] Since the application and the system relate to a configuration of the described transponder tag or comprise such a configuration, the described properties and features of the transponder tag are also disclosed for the application and the system and vice versa.

[0026] According to another aspect of the present invention, a method for manufacturing a design of a transponder tag comprises: providing a carrier layer; and forming an RFID functional unit on the carrier layer, the RFID functional unit having an RFID chip and an antenna structure coupled to the RFID chip. The antenna structure is formed with a first antenna segment, a second antenna segment and an antenna loop, so that the antenna loop is arranged between the first antenna segment and the second antenna segment and is coupled to the first antenna segment and the second antenna segment. At least one of the two antenna segments is formed with a first meandering antenna arm and a second meandering antenna arm, so that the first antenna arm and the second antenna arm are arranged at a predetermined distance from each other and are electromagnetically coupled to each other. The antenna structure of the RFID functional unit can be formed on the carrier layer, for example, by etching aluminum and / or by printing a silver conductive paste.

[0027] Since the method relates to one embodiment of producing the described transponder label, the described properties and features of the transponder label are also disclosed for the method and vice versa.

[0028] By means of the transponder tags described, a clear and particularly reliable RFID functionalization of the container can be achieved, which can take into account different boundary conditions such as materials, contents and different filling levels. Therefore, there is no need to provide a complex tag structure, for example, which provides for forming tag markings to improve the reading conditions.

[0029] In conjunction with the present invention, it is known that, in addition, in the case of label markings, it must be ensured that the small marking also protrudes from the main container in each case and is surrounded only by air. If this is not the case, the small marking of the respective main container is pressed onto the container to be marked through the adjacent container or also through the outer packaging, thus resulting in an environment that is different from air and the performance of the RFID component can be significantly impaired by it. Such impairment can very easily lead to the RFID component no longer being able to be read reliably in the corresponding application environment.

[0030] Furthermore, regardless of whether the RFID functionality is restricted, the provision of a configurable label marking requires additional material requirements, which increases costs and can also make handling of the container more difficult or prevent it in the case of application, for example during administration. With the aid of the transponder label described, material requirements and costs can be kept very low and, moreover, there is no adverse effect on the handling of the corresponding container to which the transponder label is attached.

[0031] The transponder tag described is designed with its special antenna structure so that it uses the effect of coupled resonators to increase the number of possible oscillation modes, thereby providing an oscillation amplitude within the desired frequency band of a preset reading device for different environmental conditions, such as different liquid levels and different solutions caused by salt content. Since the meandering antenna arms are coupled to each other as dipole resonators, the antenna arms experience mutual influences on each other, so that the antenna arms influence each other in terms of their electromagnetic properties. Therefore, with respect to the overall system of the antenna structure, the increase in possible oscillation modes can be configured in a targeted manner. Symmetrical and asymmetric modes are obtained, the positions of the modes in the frequency space and their behavior with respect to their corresponding amplitudes and masses are related to the natural frequencies of the uncoupled individual systems or antenna arms and the strength of the mutual coupling. The controlled multiple resonant frequencies make it possible to reliably electronically read the data on the RFID chip regardless of certain environmental conditions.

[0032] In order to further illustrate the mode coupling, the following two extreme cases can be considered, for example: The first extreme case is given, for example, by the fact that the container is completely emptied or not filled, so that there is the smallest possible influence of the environment, and no frequency shift and attenuation due to the dissipative medium can be obtained. The second extreme case is given, for example, by the fact that the container is completely filled, so that there is the maximum influence of the environment in this regard, and the maximum possible frequency shift and the maximum attenuation due to the dissipative medium can be obtained. In the case of water as a dissipative medium, a frequency shift of more than 200 MHz can be obtained. In the case of a typical half-value width of the resonance frequency of about 20 MHz, it can be understood that a single-mode resonator can only achieve a usable resonance amplitude in the desired frequency band in one of the two cases.

[0033] With regard to the officially prescribed RFID frequency bands for reading RFID functionality in Europe, the reliable frequency band extends from 865 MHz to 868 MHz, thus having a bandwidth of 3 MHz. In other regions, such as the United States, it is permitted, for example, to read RFID functionality in a frequency band of 902 MHz-928 MHz, thus having a bandwidth of 26 MHz. Correspondingly, the resonant frequency of the transponder tag can be matched to the respective region for which the transponder tag is set in subsequent use.

[0034] Thus, by forming the antenna structure of the transponder tag with coupled resonant frequencies and by specifically adapting the coupling to the envisaged application, it is possible to achieve corresponding resonant modes in the desired frequency band of the reader both in the case of complete filling and in the case of unfilled containers. Thus, a typical reading radius for applications in different environmental situations can be achieved with the multimode antenna structure. The antenna structure can be attached directly to the container with the transponder tag.

[0035] In principle, two, three or more resonators or antenna arms can also be electromagnetically coupled to one another. The parameters responsible for the coupling strength, such as the line width of the individual antenna arms, the spacing of the antenna arms from one another, the length of the individual antenna arms and the position of the connection points of the antenna arms to the inner antenna ring, can also be varied and adapted to the respective application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In the following, an embodiment of the present invention is described based on a schematic diagram. The accompanying drawings show:

[0037] Figure 1 An embodiment of a system having a container and a transponder tag arranged on the container is shown.

[0038] Figures 2 to 5 Show according to Figure 1 An embodiment of a transponder tag, and

[0039] Figure 6 Shown for manufacturing according to Figures 1 to 5 Flow chart of a method for providing a transponder tag. DETAILED DESCRIPTION

[0040] Elements of the same design and function are denoted by the same reference numerals throughout the drawings. For reasons of clarity, not all elements shown in all figures are denoted by the associated reference numerals where appropriate.

[0041] Figure 1 In a schematic side view, a system 1 is shown which has a container 3 and a transponder label 2 applied to the container 3. The container 3 comprises a container body 5 and a container closure 4 which is coupled to the container body 5 and is arranged above the container body 5 with respect to the longitudinal axis L. Figure 1 , the transponder tag 2 is fastened to the container body 5. Alternatively or additionally, the transponder tag 2 can be fastened to the container closure 4 and / or oriented rotated by 90° or in another way.

[0042] Figures 2 to 5 An exemplary embodiment of a transponder tag 2 is shown in a schematic top view. Figure 2 and Figure 3 An embodiment of a transponder tag 2 is shown, which comprises a carrier layer 20 and an RFID functional unit having an RFID chip 18 and an antenna structure 10, which are coupled to the carrier layer 20. The antenna structure 10 comprises a first antenna segment 11, a second antenna segment 12 and an antenna loop 17, which is arranged between the first and second antenna segments 11, 12 and is coupled to the first and second antenna segments. Figure 2 and Figure 3Antenna loop 17 can also be referred to as an inner antenna loop, while first antenna section 11 on its left and second antenna section 12 on its right are coupled to inner antenna loop 17 at different coupling points 19 .

[0043] Within the scope of this description, terms such as "above" and "below" as well as "right" and "left" relate to the arrangement or orientation of the transponder tag 2 as it is illustrated in the drawings. Figures 2 to 5 A corresponding coordinate system with a vertical x-direction and a horizontal y-direction is drawn in for auxiliary purposes.

[0044] The two antenna sections 11 and 12 each have a meandering first antenna arm 13 and a meandering second antenna arm 14, which are arranged at preset distances D1, D2, and D3 from each other and are electromagnetically coupled to each other. The antenna arms 13 and 14 each have a rectangular meandering shape, wherein the respective second antenna arm 14 is mainly arranged within the meandering shape of the respective first antenna arm 13. The antenna arms 13 and 14 are mainly linear in design and have a preset line width. At the respective free ends, the antenna arms 13 and 14 each have a planar antenna component 15 or 16, which can have a particularly beneficial effect on the reading effective radius and performance of the RFID functional unit. Alternatively, however, the antenna arms 13 and 14 can also be configured in a continuous linear shape (see Figure 5 ). Furthermore, the antenna sections 11, 12 can also have only one antenna arm 13 or 14 (see Figure 4 ). Alternatively, the antenna sections 11 , 12 may also have three or more antenna arms 13 , 14 , which are partially or completely electromagnetically coupled to one another.

[0045] The antenna arms 13 and 14 are designed in a predetermined manner and are arranged relative to one another in such a way that they are inductively and capacitively coupled to one another and configure a controlled number of resonant frequencies of the antenna structure 10. In this regard, the following parameters can influence the formation of the resonant frequencies: the line width of the respective antenna arms 13, 14; the total length of the respective antenna arms 13, 14; the outer width A1, A2 of the respective antenna arms 13, 14 (see Figure 2 ); the internal widths B1 and B2 of the corresponding antenna arms 13 and 14 (see Figure 2 ); horizontal and / or vertical spacing D1, D2, D3 between antenna arms 13, 14 (see Figure 2 and Figure 3 ); the heights C1 and C2 of the corresponding antenna arms 13 and 14 (see Figure 3 ). In this context, the horizontal spacing or width and the vertical spacing and height refer to the drawn x- and y-directions. Thus, Figure 2 Basically the diagram illustrates the horizontal dimension along the y direction. Therefore, Figure 3Basically the diagram illustrates the vertical dimension along the x-direction. However, Figures 2 to 5 It can also be understood as a top view, so that the x direction and the y direction represent directions perpendicular to each other in a horizontal plane.

[0046] The line width of the respective antenna arms 13, 14 refers to the xy plane shown and has, for example, a value between 150 μm and 1000 μm. The total length of the respective antenna arms 13, 14 from the outer free end to the respective coupling point 19, at which the antenna arms 13, 14 are connected to the inner antenna ring 17, has, for example, a value between 20 mm and 120 mm. The height C1, C2 of the respective antenna arms 13, 14 can, for example, have a value between 10 mm and 20 mm. The spacings D1, D2 and D3 can each have a value corresponding to 10% to 150% of the line width.

[0047] The antenna structure 10 described and illustrated in the figure each comprises the coupling of at least two meander-shaped dipole antennas in the form of antenna arms 13, 14. The two antenna arms 13, 14 themselves individually have similar resonance frequencies. The respective coupling of the two antenna arms 13, 14 of one of the antenna sections 11, 12 is not only inductive but also capacitive and is dependent on the length of the parallel-running conductor sections, their spacing and the respective line width. In addition, the antenna arms are coupled into the inner antenna loop 17 at different phase points 19. By varying the parameters, the coupling strength can be varied in a targeted manner, so that the resonance characteristics of the antenna structure 10 can also be preset in a controlled manner. By appropriately varying the coupling strength, the antenna structure 10 as an overall system can be coordinated with the preset environmental conditions in the proposed application.

[0048] The antenna arms 13 , 14 and the antenna loop 17 each influence one another with regard to their electromagnetic properties, so that the coupling determines a plurality of resonant frequencies and their behavior. Figures 2 to 3 and Figure 5 In contrast, according to the embodiment of Figure 4 The embodiment of the antenna structure 10 provides four different resonant frequencies for reading. Alternatively, the antenna structure 10 can also be designed such that it provides at least two or three different resonant frequencies. The modulus changes depending on the coupling strength, the existing symmetry and the frequency spacing compared to an uncoupled oscillating system. Figures 2 to 3 In an embodiment, the number of modules can be configured, for example, between four and eight modes, and according to Figure 4 The number of modules can be configured between two and four modes.

[0049] according to Figure 6According to the flow chart in FIG. 1 , the method for producing a transponder label 2 can be performed as follows: In step S1 , a carrier layer 20 , for example in the form of a PET plastic film, is provided.

[0050] In step S2, an RFID functional unit having an RFID chip 18 and an antenna structure 10 coupled to the RFID chip is formed on a carrier layer 20. Here, the antenna structure 10 can be formed on the carrier layer 20 by etching and / or printing aluminum and / or silver. The antenna structure 10 is formed with two antenna sections 11 and 12 and an antenna loop 17 located between the antenna sections, so that the antenna sections and the antenna loop are connected to each other via the associated coupling points 19. At least one of the two antenna sections 11, 12 is formed with a meander-shaped first and second antenna arms 13 and 14, so that the first antenna arm and the second antenna arm are arranged at a predetermined distance D1, D2, D3 from each other and are electromagnetically coupled to each other.

[0051] In this way, a design of a transponder tag 2 can be formed, in which the antenna structure 10 can realize multimode UHF RFID marking for small primary containers in the pharmaceutical environment. If applied to relatively small primary containers such as syringes, reliable RFID marking and electronic reading can be configured with the aid of the transponder tag 2 despite different liquid levels in the container 3. By targeted use of coupled resonators, the antenna structure 10 provides an increased number of possible oscillation modes, which can be read respectively with the aid of a reading device. The risk that the RFID functional unit cannot be read reliably due to frequency shifts can be significantly reduced with the aid of the described design of the transponder tag 2.

[0052] Reference numerals list

[0053] 1 System

[0054] 2 Transponder Tags

[0055] 3 Container

[0056] 4 Container closures

[0057] 5 Container body

[0058] 10 Antenna Structure

[0059] 11. First antenna section

[0060] 12. Second antenna section

[0061] 13 The meandering first antenna arm of the corresponding antenna section

[0062] 14 The meandering second antenna arm of the corresponding antenna section

[0063] 15 A planar first antenna element of the corresponding antenna section

[0064] 16 A planar second antenna element of the corresponding antenna section

[0065] 17 Inner antenna ring

[0066] 18 RFID chip

[0067] 19 Coupling point between antenna section and antenna loop

[0068] 20 bearing layer

[0069] A(i) is the outer width of the corresponding meander-shaped antenna arm

[0070] B(i) is the inner width of the corresponding meander-shaped antenna arm

[0071] C(i) is the height of the corresponding meandering antenna arm

[0072] D1 The first distance between the meandering antenna arms

[0073] D2 The second spacing between the meandering antenna arms

[0074] D3 The third distance between the meandering antenna arms

[0075] L Longitudinal axis of the container

[0076] S(i) Steps of a method for manufacturing a transponder tag

Claims

1. A transponder tag (2) for a container (3), the transponder tag having: - a carrier layer (20), and - An RFID functional unit, the RFID functional unit comprising an RFID chip (18) and an antenna structure (10) coupled to the RFID chip, the RFID chip and the antenna structure being coupled to the carrier layer (20), wherein the antenna structure (10) comprises a first antenna segment (11), a second antenna segment (12) and an antenna loop (17), the antenna loop being arranged between the first antenna segment and the second antenna segment (11, 12) and coupled to the first antenna segment and the second antenna segment, and wherein at least one of the two antenna segments (11, 12) comprises a first meandering antenna arm (13) and a second meandering antenna arm (14), the first antenna arm and the second antenna arm being arranged at a predetermined distance (D1, D2, D3) from each other and being electromagnetically coupled to each other, so that a predetermined number of oscillation modes of the antenna structure (10) are configured.

2. A transponder tag (10) according to claim 1, wherein the two antenna sections (11, 12) respectively include a first meandering antenna arm (13) and a second meandering antenna arm (14), the first antenna arm and the second antenna arm are respectively arranged at a preset distance (D1, D2, D3) from each other and are electromagnetically coupled to each other.

3. A transponder tag (10) according to any one of the preceding claims, wherein the corresponding first antenna arm (13) and the corresponding second antenna arm (14) have a rectangular meandering shape, each of which includes a plurality of straight line segments having a preset length (A1, A2, B1, B2, C1, C2).

4. The transponder tag (10) as claimed in claim 1, wherein at least one of the antenna arms (13, 14) has a planar antenna element (15, 16) at the free end.

5. The transponder tag (10) according to any of the preceding claims, wherein the respective first antenna arm (13) and the respective second antenna arm (14) are coupled to the inner antenna loop (17) at different coupling points (19).

6. The transponder tag (10) according to any of the preceding claims, wherein the respective first antenna arm (13) and / or the respective second antenna arm (14) has a width of between 150 μm and 1000 μm.

7. The transponder tag (10) according to any of the preceding claims, wherein the respective first antenna arm (13) and / or the respective second antenna arm (14) has an overall length of between 20 mm and 120 mm.

8. The transponder tag (10) according to any one of the preceding claims, wherein the respective first antenna arm (13) and / or the respective second antenna arm (14) has an elongated section with a length (C1, C2) of between 10 mm and 20 mm.

9. A transponder tag (10) according to any of the preceding claims, wherein the segment length (A1, A2, B1, B2, C1, C2) and / or the total length of the corresponding first antenna arm and / or second antenna arm (13, 14) are configured to be coordinated with the container (3) to be labeled.

10. The transponder tag (10) according to claim 1, wherein the line width of the respective first antenna arm and / or second antenna arm (13, 14) is designed to be coordinated with the container (3) to be labeled.

11. The transponder tag (10) according to any one of the preceding claims, wherein the distance (D1, D2, D3) between the respective first and second antenna arms (13, 14) is designed to be coordinated with the container (3) to be labeled.

12. A transponder label (10) according to any one of claims 9 to 11, wherein the line width, the segment length (A1, A2, B1, B2, C1, C2), the total length and / or the spacing (D1, D2, D3) are configured to be coordinated with the material, contents and / or liquid level of the container (3) to be labeled.

13. A system (1), comprising: a container (3) having a container body (5) and a container closure (4), and - A transponder tag (2) according to any of the preceding claims, which is connected to the container body (5) and / or the container closure (4).

14. A method for producing a transponder label (2) for a container (3), the method include: - providing a carrier layer (20), and - An RFID functional unit is formed on the carrier layer (20), the RFID functional unit having an RFID chip (18) and an antenna structure (10) coupled to the RFID chip, wherein the antenna structure (10) is formed with a first antenna section (11), a second antenna section (12) and an antenna loop (17), the antenna loop is arranged between the first antenna section and the second antenna section (11, 12) and is coupled to the first antenna section and the second antenna section, and wherein at least one of the two antenna sections (11, 12) is formed with a first meandering antenna arm (13) and a second meandering antenna arm (14), so that the first antenna arm and the second antenna arm are arranged at a predetermined distance (D1, D2, D3) from each other and are electromagnetically coupled to each other.

15. The method according to claim 14, wherein the antenna structure (10) of the RFID functional unit is formed on the carrier layer (20) by means of etching and / or printing.

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