Smartcards with metal layers manufactured according to various techniques disclosed herein. One or more metal layers of a smartcard stackup may be provided with slits overlapping at least a portion of a module antenna in an associated transponder chip module disposed in the smartcard so that the metal layer functions as a coupling frame. One or more metal layers may be pre-laminated with plastic layers to form a metal core or clad subassembly for a smartcard, and outer printed and/or overlay plastic layers may be laminated to the front and/or back of the metal core. Front and back overlays may be provided. Various constructions of and manufacturing techniques (including temperature, time, and pressure regimes for laminating) for smartcards are disclosed herein.

A booster antenna for enabling ID information, code information, or the like to be reliably and easily read from an IC card or the like with a portable terminal without bringing the IC card or the like directly close to the portable terminal. The booster antenna includes: an inner coil wound twice into a circular shape; an outer coil surrounding the outer side of the inner coil and wound twice into a rectangular shape; and a terminal-side coil wound four times into a circular shape. One end of the inner and outer coils are electrically connected to each other. The diameter of the inner coil is 93% or more of the short sides of the outer coil. The booster antenna includes a connection cord connecting the other end of the inner coil and one end of the terminal-side coil and electrically connecting the other end of the outer coil and the other end of the terminal-side coil.

Systems and methods are described herein for detecting connections between components, such as 3D-printed components, using RFID tags, readers, and/or writers. For example, an RFID reader may read an identification code from an RFID tag that is at least partially 3D-printed as part of a first 3D-printed component to verify the connection to a second 3D-printed component. In various examples, the RFID reader may detect different identification codes depending on whether the first 3D-printed component is correctly connected to the second 3D-printed component, incorrectly connected to the second 3D-printed component, and/or connected to the second 3D-printed component in the past.

A vehicle window includes a first glass pane, a transponder having an antenna and a control unit for communicating with a reader, wherein the control unit includes a memory for storing identification data. A reflector is associated with and spaced apart from the transponder for increasing an antenna gain of the antenna, wherein the reflector is implemented as a transparent, electrically conductive coating and/or as a metallic ring.

A dual band transponder comprises a carrier substrate having at least one planar substrate layer. An ultra-high frequency loop antenna is mounted on a first surface of one of the planar substrate layers of the carrier substrate. A high frequency loop antenna is mounted on two opposite surfaces of one of the planar substrate layers of the carrier substrate. The ultra-high frequency loop antenna encloses the high frequency loop antenna in a plane parallel to the at least one planar substrate layer entirely. A textile label includes a textile label substrate and a corresponding dual band transponder mounted onto the textile label substrate.

A transaction card, and processes for the manufacture thereof, having a core layer, optionally, one or more layers or coatings over the core layer, and at least one of a magnetic stripe, a machine readable code, and a payment module chip disposed in or on the card and suitable for rendering the card operable for conducting a transaction. The core layer comprises a metal-doped cured epoxy comprised of metal particles distributed in a binder consisting essentially of a cured, polymerized epoxy resin, the core comprising greater than 50%, preferably greater than 75%, and more preferably greater than 90%, of the weight and/or volume of the card. In some embodiments, the core includes a metal insert enveloped with the metal-doped curable epoxy, wherein the periphery of the epoxy extends beyond the periphery of the metal insert and has material properties more conducive to cutting or punching than the metal insert.

A radio frequency identification (RFID) switch tag exemplarily includes: a housing; a detachable card including: a booster antenna, and at least one ultra-high frequency RFID module uncoupled to the booster antenna when the detachable card is detached from the housing; and a coupling coil, configured to couple the booster antenna with one of the at least one ultra-high frequency RFID module when the detachable card is attached to the housing. The RFID switch tag may have complete functions, the RFID switch tag is detachable and convenient in use, and the RFID switch tag can be applied in various scenarios.

The invention relates to a chip card designed to communicate data in a contactless mode with a card reader operating at a reading frequency. The resonance frequency of the chip card may change according to the capacitance of the chip used in the contactless mode of the chip card. In order to be able to use various chips without changing the booster antenna design, the card antenna circuit is provided with a capacitance element such that the chip card including the card antenna circuit and the chip module has two different resonance frequencies, one of which being equal to, or lower than, the reading frequency and the other being equal to, or greater, than the reading frequency. This create a broadband wherein the reading frequency falls.

An account is managed using information read from a dual frequency transponder. Information stored on the dual frequency transponder can be read by a NFC-enabled device and by a UHF RFID reader. The information links, corresponds, or otherwise provides access to account information stored at a remote server. For example, a NFC-enabled device can read the information from the dual frequency transponder and use that information to enable instant and on-the-spot recharging of a toll account. In addition, a UHF RFID toll reader can scan information from the dual frequency transponder and use that information to debit toll charges from the correct toll account. The dual frequency transponder can be embedded in a license plate and read using a reader placed in the road. Additionally, the transponder can be configured to function at the correct frequency only when a valid vehicle registration sticker is applied to the license plate.

The invention relates to a method for retrieving a shut state and/or a location of a closable container as well as closable containers, wherein a transition between an open position and a closed position is achieved by a relative movement at least of a first container part with respect to a second container part, wherein the container has at least one RFID chip having a connected near field antenna and a far field antenna and the RFID chip having the connected near field antenna is arranged at the first or at the second container part and the far field antenna is arranged at the other one of the first and second container part, respectively, and the near field antenna, which is connected to the RFID chip, is arranged, as compared to the far field antenna, such that, in the closed position of the container, a noncontact electromagnetic coupling takes place between the near field antenna and the far field antenna. In the context of the method, due to the interaction of a sending unit and a receiving unit, a response signal can by generated by means of the RFID chip and can be transmitted, the range of said response signal depending on the shut position of the container.