A medical instrument is provided in which a wireless IC tag is fixed to a first or second body, such that at least part of the wireless IC tag is positioned more frontward than a front end of a first ring and a front end of a second ring and more backward than a support. A winding axis of an inductor is orthogonal to the up-down direction and intersects the front-back direction so that electric, magnetic, or electromagnetic field coupling is established between a resonant circuit and a metal medical instrument. Moreover, the metal medical instrument either emits a transmission signal, which has a frequency equal to a predetermined resonant frequency and supplied from the resonant circuit, as an electromagnetic wave, or it receives a reception signal having a frequency equal to the predetermined resonant frequency as an electromagnetic wave, and supplies the reception signal to the resonant circuit.

A combined EAS and RFID circuit includes an HF coil antenna, a UHF tuning loop, and an RFID chip coupled to a strap that includes a first coupling area and a second coupling area. The coil ends of the HF coil antenna are configured to capacitively and/or conductively couple to one or both of the first coupling area or second coupling area of the strap. The HF coil antenna can include a gap between turns for non-interfering placement of the UHF tuning loop. The EAS circuit can be deactivating upon application of a field at the resonant frequency of sufficient intensity to cause the breakdown voltage to be exceeded between a coil end and coupling area. The threshold breakdown voltage between a coil end and a coupling area can be reduced by laser ablation treatment of a conductive surface of one or both of the coil end or coupling area.

The present invention provides an electronic device. The electronic device includes a mainboard, a metal frame, a display module, and a shield structure. The mainboard includes a radio frequency circuit. The metal frame is coupled to the radio frequency circuit, and configured to receive or transmit a radio frequency signal. The shield structure is located in the display module or on a side of the display module closer to the mainboard, and is connected to the display module. The shield structure includes a metal shield layer. The metal shield layer is insulated from the metal frame and the radio frequency circuit, and the metal shield layer can generate reflection between the metal frame and the display module, weaken field strength generated in the display module by radiated energy from the metal frame, and shield the energy radiated from the metal frame to the display module.

A system and method are disclosed for tracking animals, which may include production animals as well as pets. The system and method may comprise a tag system that is attached to an animal that generally has at least a near-field-communication (NFC) tag. The tag system comprises at least an NFC tag and a radio-frequency identification (RFID) tag. For NFC tags, such tags may be read with a portable computing device, such as a mobile telephone running NFC reader application software. The phone may communicate with a communications network and ultimately a computer server in order to relay information received from a respective electronic tag. The electronic tags may be fastened, embedded, or ingested by an animal. The electronic tags may be part of a mechanical coupling. Each mechanical coupling may comprise a different structure depending on the whether the tags are fastened to, embedded in, or ingested by the animal.

An RFID tag is provided that has reduced size while a decrease in communication distance is prevented. The RFID tag includes an inductor element having a coiled antenna built in a substrate and an RFIC element mounted on a mounting surface of the substrate and electrically connected to the coiled antenna. The coiled antenna is disposed such that a winding axis becomes parallel to or inclined with respect to the mounting surface of the substrate. The area of the RFIC element viewed in a direction orthogonal to the mounting surface of the substrate is larger than opening area of the coiled antenna viewed in winding axis direction of the coiled antenna. The RFIC element is disposed without overlapping at least a portion of opening region of the coiled antenna when viewed in winding axis direction of the coiled antenna.

An antenna includes: a dielectric substrate; a conductive plane formed on a back surface of the dielectric substrate; a radiating element having a linear shape and formed on a front surface of the dielectric substrate; a shorting pin connecting one end of the radiating element to the conductive plane; and a power supply pin that is connected to the radiating element, at a point a predetermined distance away from the one end to which the shorting pin is connected, through a hole provided in the conductive plane, and that supplies a transmission signal to the radiating element. A radio wave is emitted from the radiating element.

An antenna includes a self-supporting electrically conductive wire having a width (W) and extending longitudinally along a length and between first and second ends of the conductive wire. The conductive wire forms one or more loops and comprises an electrically conductive layer disposed on and aligned with an adhesive layer. A width and a length of each of the conductive and adhesive layers are substantially co-extensive with the width and the length of the conductive wire.

Aspects of the present disclosure includes a method of manufacturing a radio frequency identification (RFID) tag, including connecting a first wire and a second wire across a chip, maintaining the spaced apart distance between the first wire and the second wire adjacent to each side of the chip to define a spaced apart segment of the first wire and the second wire that forms part of an inductive loop, connecting the first wire and the second wire at each side of the chip distal from and adjacent to the spaced apart segment of the first wire and the second wire to close the inductive loop, define connected wire segments, and to form an RFID assembly, and moving the RFID assembly through a casing material at or above a glass transition temperature of the casing material to encase the RFID assembly.

An RFID tag is provided as a wireless communication device for transmitting and receiving a communication signal. The RFID tag includes a base material, antenna patterns formed on the base material, an RFIC package that is a feeder circuit connected to the antenna patterns, and an LC resonance circuit that is adjacent to the antenna patterns and resonates at a frequency higher than the frequency of the communication signal.

The present invention relates to a radio frequency identification (personalized) device (RFID) without chip, in particular to a RFID tag (personalized) without chip, also referred to as chipless RFID tag.