RFID tag with spatial readability
The double-loop antenna design on RFID labels addresses the issue of unreliable readability on cylindrical objects by ensuring consistent current flow, enabling reliable reading from any angle.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SCHREINER GRP GMBH & CO KG
- Filing Date
- 2025-10-29
- Publication Date
- 2026-05-07
AI Technical Summary
Existing RFID labels on cylindrical objects, such as syringes or injection pens, suffer from unreliable readability when read from different spatial directions due to current cancellation in single-loop antennas, making them difficult to read from certain angles.
A double-loop antenna design is implemented, with loop antennas wound in opposite directions on opposite sides of a carrier film, ensuring induced currents flow in the same direction and avoiding cancellation, thus enabling reliable readability from various angles.
The double-loop antenna arrangement allows for 360-degree readability of RFID tags on cylindrical containers by ensuring consistent current flow direction, regardless of the reader's orientation.
Smart Images

Figure EP2025081263_07052026_PF_FP_ABST
Abstract
Description
[0001] P2024,0788 WO N / 24013P-WO October 29, 2025
[0002] - 1 -
[0003] Description
[0004] RFID label with spatial readability
[0005] The invention relates to an RFID label with spatial readability from different spatial directions. Furthermore, the invention relates to a labeled container with RFID functionality that is readable from different spatial directions.
[0006] Besides their use in warehousing and logistics, RFID tags are increasingly being used in the pharmaceutical sector. To identify medical devices, RFID tags are affixed to medical containers, such as vials, syringes, or injection pens. These RFID tags contain an RFID chip or transponder that stores individual product information about the medication contained within the medical container.
[0007] The RFID chip is connected to an antenna, enabling wireless or contactless communication between a reader and the RFID chip. To read the data stored in the RFID chip, the reader generates an electromagnetic field that induces a current in a conductor of the antenna. While active RFID chips have their own power source, passive RFID chips do not. Instead, they are powered by the electromagnetic field generated by the reader or by the current induced in the antenna conductor, which is required to output the stored data.
[0008] In most cases, a simple loop antenna is used for the antenna connected to the RFID chip. Pharmaceutical containers, such as the syringes or injection pens mentioned above, are typically cylindrical. When an RFID label with a simple loop antenna is affixed to such a cylindrical container, the antenna structure either surrounds only part of the container or is arranged around its entire circumference along with the label. P2024,0788 WO N / 24013P-WO 29 October 2025
[0009] - 2 -
[0010] If the loop antenna is only arranged around part of the cylindrical object, for example, around an area between 0 and 180 degrees, reliable reading of the RFID chip is only possible if the reader is held against the side of the cylindrical object where the loop antenna is located. If, for example, the loop antenna only extends around half of the cylindrical object, such as only the front, satisfactory readability of the data stored in the RFID tag is generally only possible if the reader is held against the front of the container. If, however, the reader is held closer to the back of the container, readability becomes significantly more difficult or even impossible.
[0011] On the other hand, if the dimensions or length of the loop antenna are increased so that the antenna's conductor structure covers almost the entire surface of the label, the antenna can indeed be positioned around the entire circumference of the container, depending on the label's size. However, when attempting to read the RFID chip, opposing currents are induced in opposite conductor sections of the antenna, canceling each other out and thus further impairing the RFID chip's readability.
[0012] Therefore, there is a need to specify a label with optimized readability that, once affixed to a container, particularly a cylindrical object, can be reliably read from any spatial direction. Furthermore, a labeled container with RFID functionality should be specified, where the RFID label can be read from any spatial direction.
[0013] An RFID label with good spatial readability when a reader approaches from different spatial directions is specified in claim 1.
[0014] The RFID tag comprises an antenna assembly and a carrier film. The antenna assembly includes a first loop antenna and a second loop antenna. The first loop antenna is located on the first side of the carrier film. The second loop antenna is located on the opposite side of the carrier film. The first and second loop antennas are electrically connected to each other. P2024,0788 WO N / 24013P-WO 29 October 2025
[0015] - 3 - connected. One turn of the first loop antenna runs opposite to one turn of the second loop antenna when viewed from above on the first side of the carrier film.
[0016] The proposed antenna arrangement is thus designed as a double-loop antenna. The antenna arrangement comprises two loop antennas or coils electrically connected in series, wound in opposite directions or arranged in opposite directions on the substrate film. The two loop antennas are located on opposite sides, in particular a top and bottom, of the substrate film.
[0017] After the RFID label is attached to the round body of a container, for example on the circumferential surface of a syringe or injection pen, the antenna arrangement consisting of the first and second loop antennas covers a large part of the circumferential surface of the round body.
[0018] While with single-loop antennas, when attempting to read the RFID tag from different spatial directions, especially when attempting a 360-degree readout, there are spatial locations from which the RFID tag cannot be read because the currents induced in the single coil almost cancel each other out, the problem of current cancellation is circumvented by the proposed approach of an antenna arrangement with two counter-rotating loop antennas or coils arranged on different sides of a substrate.
[0019] In the proposed concept, the currents induced in the antenna array by the electric field of a reader flow in the same direction in the first and second loop antennas when the RFID tag is affixed to a cylindrical object such that the first and second loop antennas are located on opposite sides of the container. The proposed geometric design of the antenna array thus allows the RFID tag to be read from various directions within a 360-degree range using a reader. P2024,0788 WO N / 24013P-WO 29 October 2025
[0020] - 4 -
[0021] According to one possible embodiment of the RFID label, the antenna arrangement comprises a conductor track consisting of a first conductor track section and a connected second conductor track section. The first conductor track section is located on the first side of the carrier film and thus forms the first loop antenna. The second conductor track section is located on the second side of the carrier film and forms the second loop antenna.
[0022] According to one embodiment of the RFID label, the winding of the first loop antenna is configured such that the first conductor track section runs in one direction, for example clockwise, when viewed from above on the first side of the carrier film. The winding of the second loop antenna is configured such that the second conductor track section runs in a second direction, for example counterclockwise, when viewed from above on the first side of the carrier film.
[0023] Despite the opposing windings of the first and second loop antennas when viewed from above and virtually through the carrier film, the currents induced in the antenna arrangement no longer cancel each other out after the label is applied to a cylindrical object, because the induced currents in both loop antennas flow in the same direction. This ensures reliable readability of the RFID label.
[0024] The first loop antenna can be configured between its two ends, for example, as a right-handed spiral, in particular a rectangular spiral. The second loop antenna, viewed from a top-down perspective of the first side of the carrier film and a virtual view through the carrier film, can be configured between its two ends as a left-handed spiral, in particular a rectangular spiral.
[0025] According to one possible embodiment of the RFID label, the first and second loop antennas are electrically connected to each other in series by means of a through-hole connection through the carrier film.
[0026] According to another possible embodiment of the RFID label, the second loop antenna is in a perpendicular position when viewed from above on the first side of the carrier film. P2024,0788 WO N / 24013P-WO 29 October 2025
[0027] - 5 -
[0028] The projection is offset from the first loop antenna. Specifically, the first and second loop antennas are offset from each other in the longitudinal direction (i.e., the dispensing direction) of the RFID label on the first and second sides of the carrier film, respectively. The first and second loop antennas are offset from each other in such a way that, when viewed from above on the first side of the carrier film in a perpendicular projection, the majority of the effective antenna area of the first loop antenna and the majority of the effective antenna area of the second loop antenna are offset from each other or do not overlap.In particular, the first and second loop antennas can be arranged offset from each other in such a way that the effective antenna area of the first loop antenna and the effective antenna area of the second loop antenna do not overlap at all when viewed from above in a vertical projection onto the first side of the carrier film.
[0029] According to another possible embodiment of the RFID label, for example, one of the first and second loop antennas can extend longitudinally along the RFID label on the first side of the carrier film over at least the first half of the RFID label's length. If, for example, the first loop antenna extends longitudinally along the RFID label over exactly the first half of the RFID label's length, then when the RFID label is affixed to a cylindrical container, the first loop antenna can cover a circumferential area of the container between 0 degrees and 180 degrees, provided the label length and the container circumference are appropriately matched.
[0030] According to a further embodiment of the RFID label, the other of the first and second loop antennas can extend longitudinally along the RFID label on the second side of the carrier film over a maximum of one second half of the RFID label's length, adjoining the first half. For example, if the second loop antenna extends longitudinally along the RFID label on the second side of the carrier film over a maximum of one second half of the RFID label's length, the second loop antenna can cover a circumferential area of the round body between 180 degrees and 360 degrees or between 270 degrees and 360 degrees when the RFID label is applied to a round body. The RFID label can thus be used with the aid of the two loop antennas from P2024,0788 WO N / 24013P-WO 29 October 2025
[0031] - 6 - different spatial directions in the range between 0 degrees and 360 degrees of the perimeter of the container can be read.
[0032] An embodiment of a labeled container with RFID function having an RFID label according to one of the embodiments described above is specified in claim 15.
[0033] In the RFID-enabled container, the RFID label is affixed to one of the container walls in such a way that the first and second loop antennas are at least partially opposite each other. Due to the opposing winding directions of the first and second loop antennas, the currents induced in the first loop antenna and the second loop antenna (located opposite the first after affixing the label to the container) do not cancel each other out. This ensures reliable readability of the RFID label even when a reader approaches it from different angles.
[0034] The invention is explained in detail and clearly below with reference to figures showing exemplary embodiments of the RFID label and a labeled container with RFID functionality. The figures show:
[0035] Figure 1 shows an embodiment of an RFID label with optimized readability in different spatial directions in a top view;
[0036] Figure 2A shows an embodiment of an RFID label with optimized readability in different spatial directions in a first cross-sectional view;
[0037] Figure 2B shows an embodiment of an RFID label with optimized readability in different spatial directions in a second cross-sectional view; and
[0038] Figure 3 shows an embodiment of a labeled container with RFID functionality, comprising the RFID label with optimized readability in different spatial directions. P2024,0788 WO N / 24013P-WO 29 October 2025
[0039] - 7 -
[0040] An RFID label 10, which, after application to a container, in particular to a round body of a pharmaceutical container, enables reliable readability in almost all spatial directions, is described below with reference to a top view of the RFID label in Figure 1 and to the cross-sectional views shown in Figures 2A and 2B. The label 10 can, for example, be designed as an NFC RFID label.
[0041] The RFID label 10 comprises an antenna assembly 100 with a loop antenna 110 and a loop antenna 120. Furthermore, the RFID label 10 has a carrier film 200 on which the antenna assembly 100 is arranged. The loop antenna 110 of the antenna assembly 100 is arranged on a side 201, for example, a top side of the carrier film 200. The loop antenna 120 is arranged on a side 202 of the carrier film 200 opposite side 201, for example, a bottom side of the carrier film.
[0042] The two loop antennas 110 and 120 are electrically connected to each other. In particular, loop antenna 120 is electrically connected in series to loop antenna 110. A via 140 through the carrier film 200 is provided for the electrical connection of the two loop antennas. The loop antenna 110 and loop antenna 120 are electrically connected in series via this via 140 through the carrier film 200.
[0043] The antenna arrangement 100 has a conductor track 130. The conductor track 130 comprises a conductor track section 131 and a conductor track section 132 electrically (serially) connected to it. The conductor track section 131 is arranged on side 201 of the carrier film 200, for example, the top side of the carrier film, and forms the loop antenna 110. The conductor track section 132 is arranged on side 202 of the carrier film 200, for example, the bottom side of the carrier film, and forms the loop antenna 120.
[0044] The conductor track section 131 of the loop antenna 110 has an end 131a and an end 131b. The conductor track section 132 of the loop antenna 120 has an end 132a and an end 132b. The end 131b of conductor track section 131 is connected to the end 132a of conductor track section 132 via the via 140. The RFID- P2024,0788 WO N / 24013P-WO 29 October 2025
[0045] - 8 -
[0046] Label 10 further comprises an RFID chip 300, which is arranged between the end 131a of conductor section 131 of loop antenna 110 and the end 132b of conductor section 132 of loop antenna 120.
[0047] The winding of the loop antenna 110 is designed such that the conductor track section
[0048] The conductor section 131 runs spirally on side 201 of the carrier film 200 between end 131a and end 131b. As can be seen in Figure 1, the conductor section 131 runs spirally from the inside out between its end 131a and its end 131b. In the embodiment of the RFID label 10 shown in Figure 1, the conductor section 131 of the loop antenna 110 is arranged in the form of an angular or rectangular spiral on side 201 of the carrier film 200 between end 131a and end 131b.
[0049] The winding of the loop antenna 120 is designed such that the conductor track section
[0050] The conductor section 132 on side 202 of the carrier film 200 also runs in a spiral shape between end 132a and end 132b. In particular, the conductor section 132 runs spirally from the inside out between its end 132a and its end 132b. The conductor section 132 of the loop antenna 120 is also arranged in the form of an angular or rectangular spiral on side 202 of the carrier film 200 between end 132a and end 132b of the conductor section 132.
[0051] It should be noted that variations of the spiral design of the loop antennas 110 and 120 are possible. For example, the conductor track section 131 of the loop antenna 110 and the conductor track section 132 of the loop antenna 120 can be arranged in the form of an Archimedean or circular spiral on side 201 or side 202 of the carrier film 200, respectively.
[0052] The conductor track 130 of the antenna arrangement 100 further includes a conductor track section
[0053] 133, which is shown in the cross-sectional view of the RFID label 10 in Figure 2A along the section line AA shown in Figure 1. The conductor track section 133 is arranged between the conductor track section 131 and the conductor track section 132 and runs through the carrier film 200. P2024,0788 WO N / 24013P-WO 29 October 2025
[0054] - 9 -
[0055] As can be seen in Figure 2A, conductor section 133 on side 201 of the carrier film is connected to end 131b of conductor section 131 of the loop antenna 110, and on side 202 of the carrier film to end 132a of conductor section 132 of the loop antenna 120. Conductor section 133 thus forms one of the vias 140 for the electrical connection of the loop antenna 110 to the loop antenna 120. For clarity, Figure 2A shows only the conductor section 131 leading to the via 140 or conductor section 133, and the conductor section 132 leading away from the conductors running transversely across the label.
[0056] The conductor track 130 of the antenna arrangement 100 further comprises a conductor track section 134, which is shown in the cross-sectional view of Figure 2B along the section line BB shown in Figure 1. For the sake of clarity, only the conductor track of conductor track section 132 leading to the via 140 or to conductor track section 134, and the conductor track leading away from conductor track section 135, are shown in Figure 2B of the conductor tracks running transversely across the label. The conductor track section 134 is located between the conductor track section 132 of the loop antenna 120 and the RFID chip 300 and runs through the carrier film 200. The conductor track section 132 is connected at its end 132a to the conductor track section 133 and at its end 132b to the conductor track section 134. The conductor track section 134 forms one of the vias 140 shown in Figure 1 through the carrier film 200.
[0057] As shown in Figure 1, the conductor track 130 of the antenna arrangement 100 has a further conductor track section 135, which is arranged on side 201 of the carrier film 200. The conductor track section 135 is arranged between the RFID chip 300 and the conductor track section 134. In particular, the conductor track section 135 has an end 135a, which is connected to the conductor track section 134, and an end 135b, to which the RFID chip 300 is connected.
[0058] The two loop antennas 110 and 120 are geometrically designed such that, when viewed from the top of side 201 of the carrier film 200, one turn of the loop antenna 110 runs in the opposite direction to a turn of the loop antenna 120. The winding direction of the loop antenna 110, when viewed from the top of side 201 of the carrier film 200, is... P2024,0788 WO N / 24013P-WO 29 October 2025
[0059] - 10 -
[0060] The carrier film 200 extends from the end 131a of the conductor track section 131 along the spirally arranged conductor track section 131 to the end 131b of the conductor track section 131. The winding direction of the loop antenna 120, viewed from the top of side 201 of the carrier film 200 and from a virtual view through the carrier film 200, runs from the end 132a of the conductor track section 132 along the spirally arranged conductor track section 132 to the end 132b of the conductor track section 132.
[0061] As can be seen from Figure 1, the winding direction of the loop antenna 110 between the end 13a and the end 131b runs in a first direction, while the winding direction of the loop antenna 120 between the end 132a and the end 132b of the conductor section 132 runs in a second direction opposite to the first direction.
[0062] In the specific embodiment of the RFID label 10 shown in Figure 1, the winding of the loop antenna 110 is configured such that, when viewed from above on side 201 of the carrier film 200, the conductor track section 131 of the loop antenna 110 runs clockwise between its ends 131a and 131b. The winding of the loop antenna 120, on the other hand, is configured such that, when viewed from above on side 201 of the carrier film 200 and virtually looking through the carrier film 200, the conductor track section 132 runs counterclockwise between its ends 132a and 132b.
[0063] As can be seen from Figure 1, the loop antenna 120 on side 202 of the carrier film 200 is arranged perpendicularly offset from the loop antenna 110 on side 201 of the carrier film 200 when viewed from above. In particular, the loop antennas 110 and 120 are arranged offset from each other in the longitudinal or dispensing direction of the RFID label 10 on side 201 and side 202 of the carrier film 200, respectively.
[0064] The effective antenna area of the first loop antenna 110 is the area enclosed by conductor section 131 of the first loop antenna. The effective antenna area of the second loop antenna 120 is the area enclosed by conductor section 132 of the second loop antenna. The first and second loop antennas 110 and 120 are shown on page 201 and page 202, respectively, of P2024,0788 WO N / 24013P-WO dated October 29, 2025.
[0065] - 11 -
[0066] The carrier film 200 is arranged offset from one another such that, in a top view of side 201 of the carrier film in vertical projection, a first area portion in which the effective antenna area of the first loop antenna 110 overlaps with the effective antenna area of the second loop antenna 120 in vertical projection is smaller than a second area portion in which the effective antenna area of the first loop antenna 110 is offset from the effective antenna area of the second loop antenna 120 in vertical projection and thus does not overlap with the effective antenna area of the second loop antenna 120. In other words, the largest portions of the effective antenna areas of the first and second loop antennas 110 and 120, respectively, are not opposite each other in a top view of side 201 of the carrier film 200 in vertical projection, or are offset from each other.In one possible embodiment, as shown for example in Figure 1, the first and second loop antennas 110 and 120 are arranged offset from each other in such a way that, when viewed from the top of side 201 of the carrier film 200, the effective antenna area of the loop antenna 110 and the effective antenna area of the loop antenna 120 do not meet at all.
[0067] The conductor track section 131 of the loop antenna 110 and the conductor track section 132 of the loop antenna 130 can be arranged on side 201 and side 202 of the carrier film 200, respectively, such that subsections 111 of the loop antenna 110 and subsections 121 of the loop antenna 120 overlap in a perpendicular projection when viewed from above on side 201 of the carrier film 200. In principle, the two loop antennas 110 and 120 can be arranged on side 201 and side 202 of the carrier film 200, respectively, such that parallel or orthogonal transitions are formed between the loop antenna 110 and the loop antenna 120.
[0068] As can be further seen from Figure 1, the conductor track section 131 of the loop antenna 110 and the conductor track section 132 of the loop antenna 120 can be arranged offset from each other in the transverse direction of the label on side 201 and side 202 of the carrier film 200, respectively. This also results in the vias 140 being arranged offset from each other. P2024,0788 WO N / 24013P-WO 29 October 2025
[0069] - 12 -
[0070] One of the two loop antennas 110 and 120 can extend longitudinally along the RFID label 10 over at least a first half, preferably exactly the first half, of the label's length. In the embodiment shown in Figure 1, for example, the loop antenna 110 extends on side 201 of the carrier film 200 over exactly the first half of the RFID label's length. The other of the two loop antennas, in this embodiment the loop antenna 120, extends longitudinally along the RFID label on side 202 of the carrier film 200 over a maximum of a second half of the label's length, adjoining the first half. In the embodiment shown in Figure 1, for example, the loop antenna 120 extends longitudinally along the RFID label on side 202 of the carrier film 200 over approximately one quarter of the label's length.
[0071] Figure 3 shows a partial section of a labeled container 1 with RFID functionality, on which the RFID label 10 is applied. The container 1 can be a pharmaceutical container with a round body, for example, a round syringe barrel or the round body of an injection pen. The RFID label 10 is affixed to a wall 2 of the container 1 such that the loop antenna 110 and the loop antenna 120 are at least partially opposite each other on the wall 2 of the container 1.
[0072] In the geometric design of the antenna arrangement 100 of the RFID label 10 shown in Figure 1, the RFID label can, for example, be affixed to the wall 2 of the container 1 such that the loop antenna 110 is arranged on the front of the container 1, i.e., within an angular range between 0 degrees and 180 degrees of the container's circumferential surface. The loop antenna 120 is arranged on the rear of the wall 2 of the container 1, for example, within an angular range of the circumferential surface of the wall 2 between 180 degrees and 270 degrees. Depending on the length of the loop antenna 120, a larger angular range on the rear of the wall 2 of the container 1 can also be covered by the loop antenna 120.
[0073] Since the winding direction of the loop antenna 110, as defined in Figure 1, is opposite to the winding direction of the loop antenna 120, the electromagnetic field of a reader on the front and back of the body of the P2024,0788 WO N / 24013P-WO 29 October 2025
[0074] - 13 -
[0075] Container 1 induces currents into the conductor track 130 of the antenna arrangement 100, which run in the same direction.
[0076] Due to the special design of the antenna arrangement 100 as a double-loop antenna, the RFID label 10 can be reliably read by a reader from all spatial directions, i.e., when the reader approaches the front of the container 1, when the reader approaches the back of the container 1, or when the reader approaches the sides of the container 1. The proposed antenna arrangement thus enables 360-degree readability of the RFID label on a cylindrical object, such as a pharmaceutical container.
[0077] P2024,0788 WO N / 24013P-WO October 29, 2025
[0078] - 14 -
[0079] Reference symbol list
[0080] 1 container
[0081] 2 walls, 10 RFID labels
[0082] 100 antenna arrangement
[0083] 110 loop antenna
[0084] 111 sections of the loop antenna 110
[0085] 120 Loop antenna 121 Subsections of the loop antenna 120
[0086] 130 conductor track
[0087] 131, ..., 135 conductor track sections
[0088] 140 through-hole plating
[0089] 200 carrier film 201, 202 pages of the carrier film
[0090] 300 RF ID chips
Claims
P2024,0788 WO N / 24013P-WO October 29, 2025 - 15 - Patent claims 1. RFID label with spatial readability, including: - an antenna array (100), - a carrier film (200), - wherein the antenna arrangement (100) comprises a first loop antenna (110) and a second loop antenna (120), - wherein the first loop antenna (110) is arranged on a first side (201) of the carrier film (200) and the second loop antenna (120) is arranged on a second side (202) of the carrier film (200) opposite the first side (201), - wherein the first and second loop antennas (110, 120) are electrically connected to each other, - wherein a turn of the first loop antenna (110) runs in the opposite direction to a turn of the second loop antenna (120) when viewed from the top of the first side (201) of the carrier film (200).
2. RFID label according to claim 1, wherein the first and second loop antennas (110, 120) are electrically connected serially to each other by means of a through-hole (140) through the carrier film (200).
3. RFID label according to claim 1 or 2, wherein the second loop antenna (120) is arranged in a perpendicular projection to the first loop antenna (110) when viewed from a top view of the first side (201) of the carrier film (200).
4. RFID label according to one of claims 1 to 3, wherein sections (111) of the first loop antenna (110) and sections (121) of the second loop antenna (120) overlap in a top view of the first side (201) of the carrier film (200) in perpendicular projection.
5. RFID label according to one of claims 1 to 4, wherein one of the first and second loop antennas (110, 120) extends in the longitudinal direction of the RFID label over at least a first half of the length of the RFID label. P2024,0788 WO N / 24013P-WO October 29, 2025 - 16 - 6. RFID label according to claim 5, wherein another of the first and second loop antennas (110, 120) extends in the longitudinal direction of the RFID label over a maximum of a second half of the length of the RFID label adjoining the first half.
7. RFID label according to one of claims 1 to 6, - wherein the antenna arrangement (100) has a conductor track (130) consisting of a first conductor track section (131) and a second conductor track section (132) connected thereto, - wherein the first conductor track section (131) is arranged on the first side (201) of the carrier film (200), - wherein the second conductor section (132) is arranged on the second side (202) of the carrier film (200).
8. RFID label according to claim 7, - wherein the winding of the first loop antenna (110) is designed such that the first conductor track section (131) runs clockwise when viewed from the top of the first side (201) of the carrier film (200), - wherein the winding of the second loop antenna (120) is designed such that the second conductor section (132) runs counterclockwise when viewed from above on the first side (201) of the carrier film (200).
9. RFID label according to claim 7 or 8, - wherein the first conductor track section (131) has a first end (131a) and a second end (131b), - wherein the second conductor track section (132) has a first end (132a) and a second end (132b), - wherein the winding of the first loop antenna (110) is designed such that the first conductor section (131) runs spirally on the first side (201) of the carrier film (200) between the first end (131a) and second end (131b) of the first conductor section, - wherein the winding of the second loop antenna (120) is designed such that the second conductor section (132) is on the second side (202) of the carrier film (200) P2024,0788 WO N / 24013P-WO October 29, 2025 - 17 - between the first end (132a) and the second end (132b) of the second conductor section runs in a spiral shape.
10. RFID label according to one of claims 7 to 9, - wherein the first conductor section (131) is arranged in the form of an angular spiral on the first side (201) of the carrier film (200) between the first and second ends (131a, 131b) of the first conductor section, - wherein the second conductor section (132) is arranged on the second side (202) of the carrier film (200) between the first and second ends (132a, 132b) of the second conductor section in the form of an angular spiral.
11. RFID label according to one of claims 6 to 10, - wherein the conductor track (130) of the antenna arrangement (100) has a third conductor track section (133), - wherein the third conductor track section (133) is located between the first conductor track section (131) and the second conductor track section (132) and runs through the carrier film (200).
12. RFID label according to claim 11, comprising: - an RFID chip (300), - wherein the RFID chip (300) is arranged between the first end (131a) of the first conductor section (131) and the second end (132b) of the second conductor section (132).
13. RFID label according to claim 12, - wherein the conductor track (130) of the antenna arrangement (100) has a fourth conductor track section (134), - wherein the fourth conductor track section (134) is located between the second conductor track section (132) and the RFID chip (300) is arranged and runs through the carrier film (200).
14. RFID label according to claim 13, - wherein the conductor track (130) of the antenna arrangement (100) has a fifth conductor track section (135) which is arranged on the first side (201) of the carrier film (200), P2024,0788 WO N / 24013P-WO October 29, 2025 - 18 - - wherein the fifth conductor section (135) is arranged between the RFID chip (300) and the fourth conductor section (134).
15. Labeled container with RFID function, comprising: - an RFID label (10) according to any one of claims 1 to 14, - wherein the RFID label (10) is affixed to a wall (2) of the container (1) such that the first and second loop antennas (110, 120) are at least partially opposite each other on the wall (2) of the container (1).
Citation Information
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