Abstract: An electromagnetic wave shielding material is provided that is configured to prevent a usage environment from being limited. The electromagnetic wave shielding material shields an electromagnetic wave having a frequency, and includes a substrate and a plurality of resonance loops disposed on the substrate. Moreover, the plurality of resonance loops are positioned on the substrate to be magnetically coupled to each other. Each of the resonance loops forms an LC parallel resonance circuit that resonates at the frequency of the electromagnetic wave.

Abstract: An RFID tag with an RFIC module including a substrate, an RFIC chip disposed on the substrate, and a loop conductor disposed on the substrate and connected to the RFIC chip; and an antenna base material mounted with the RFIC module and including an antenna conductor with a radiating portion radiating radio waves and a coupling portion connected to the radiating portion, for electromagnetic field coupling with the loop conductor. Moreover, the loop conductor includes a first loop pattern formed on a first main surface of the substrate, a second loop pattern formed on a second main surface confronting the first main surface, and an interlayer connection conductor extending through the substrate, for connecting the first and the second loop patterns in series.

Abstract: A packaging paperboard is provided that includes two or more layers with an antenna pattern printed on one layer of the two or more layers, and an RFIC element adhered to the other layer of the two or more layers. In a laminate having the layers stuck together, the RFIC element and the antenna pattern are interposed between the layers to configure an RFIC device in which the RFIC element and the antenna pattern are electrically connected.

Abstract: An electromagnetic-coupling module including a radio IC chip and a feeder circuit board on which the radio IC chip is mounted and a feeder circuit including a resonant circuit having a predetermined resonant frequency is attached to an article. The article has a radiation element that radiates a transmission signal supplied from the feeder circuit of the electromagnetic-coupling module via electromagnetic coupling and that supplies a received reception signal to the feeder circuit via the electromagnetic coupling.

Abstract: An RFID tag includes a base material, an RFIC element, and a dipole antenna. The base material has a first end, a second end, a first side, and a second side. The RFIC element is mounted on the base material and includes a first input and output terminal and a second input and output terminal. The dipole antenna includes a first dipole element and a second dipole element. The first dipole element is a conductor pattern that extends from a first connection end toward the first end and meanders toward the first side, and the second dipole element is a conductor pattern that extends from a second connection end toward the second end and meanders toward the second side.

Abstract: A metal cap is provided with an RFID tag that includes a metal cap including a cylindrical main body part, a top plate part formed at one end of the cylindrical main body part, and an opening part formed at the other end of the cylindrical main body part, and an RFID tag disposed on the metal cap. The RFID tag includes an RFIC element disposed in the metal cap, and a loop antenna connected to the RFIC element. At least a portion of a loop opening of the loop antenna extends in a circumferential direction R of the metal cap while being exposed from an opening edge of the opening part of the metal cap to the outside of the metal cap.

Abstract: In an interface unit, a shield layer includes an aperture through which magnetic flux generated by a power feeding coil of an antenna passes. Since the antenna is smaller than the shield layer, the aperture is much smaller than the shield layer. Thus, noise constituted by electromagnetic waves that travel from inside to outside of a computer via an aperture provided in an upper surface cover is blocked. During communication, the antenna and the shield layer are electromagnetically coupled to each other, and the shield layer defines and functions as an antenna. This allows proper communication with a communication target.

Abstract: An RFID tag is provided that has a rectangular parallelepiped substrate including a top surface, a bottom surface, and four side surfaces, an RFIC chip mounted on the top surface of the substrate, and a coil conductor connected to the RFIC chip. The coil conductor includes a conductor pattern disposed on the top surface, a conductor pattern disposed on the bottom surface, and a plurality of through-hole conductors penetrating the substrate and extending between the top and bottom surfaces. Moreover, a winding axis of the conductor pattern intersects with each of a pair of the side surfaces opposite to each other and having a largest area among the four side surfaces.

Abstract: A wireless communication device includes a base sheet in a folded state, a first conductor pattern disposed on a first principal surface of the base sheet, a second conductor pattern disposed on a second principal surface of the base sheet opposite to the first principal surface, an RFIC chip disposed on the base sheet so as to electrically connect to the first conductor pattern, and a sheet-shaped connection conductor coupled to a turning part of the base sheet so as to partially overlap with an end portion of the first conductor pattern near the turning part and an end portion of the second conductor pattern near the turning part.

Abstract: An RFID tag reading method, RFID tag reading system, RFID tag reading device, and an article, are provided for preventing fraud on the RFID tag. An exemplary method for reading an RFID tag with a loop antenna housed within a case of an article, includes inserting a tip of a linear antenna into the case through a hole formed in the case by using a reader device with the linear antenna having the tip as an open end, magnetically coupling the linear antenna inserted into the case and the loop antenna of the RFID tag, and reading tag information stored in the RFID tag by the reader device.

Abstract: An RFID tag that includes a radio IC chip, an antenna pattern, a matching circuit, a capacitive coupling member connected to the antenna pattern and capacitively coupled to a metal surface, and an insulating substrate. The antenna pattern includes a first antenna pattern connected to the radio IC chip with the matching circuit interposed therebetween and a second antenna pattern having one end connected to the radio IC chip with the matching circuit interposed therebetween and the other end connected to the capacitive coupling part. Moreover, the RFID tag includes a capacitive member between the first antenna pattern and the capacitive coupling part, and the antenna pattern, the capacitive coupling part, and the capacitive part are connected in a loop.

Abstract: A wireless IC device includes a wireless IC chip arranged to process a radio signal, a power-supply circuit board that is connected to the wireless IC chip and that includes a power supply circuit including at least one coil pattern, and a radiation plate arranged to radiate a transmission signal supplied from the power-supply circuit board and/or receiving a reception signal to supply the reception signal to the power-supply circuit board. The radiation plate includes an opening provided in a portion thereof and a slit connected to the opening. When viewed in plan from the direction of the winding axis of the coil pattern, the opening in the radiation plate overlaps with an inner area of the coil pattern and the area of the inner area is approximately the same as that of opening.

Abstract: An RFID tag is provided that transmits and receives a communication signal. The RFID tag includes a base material, antenna patterns provided on the base material, an RFIC package that is a feeding circuit connected to the antenna patterns, and an ignition protection member provided on the base material or the antenna patterns. Moreover, the ignition protection member contains moisture, such that ignition and combustion can be prevented even in a situation where the RFID tag is subjected to high-frequency power for heating a food item while attached to the food item or the like.

Abstract: An antenna includes first and second radiation portions including one lead wire that is folded back into a loop shape to define a folded-back portion and that includes a first power feed portion at a first end and a second power feed portion at a second end. The lead wire portion extending toward the folded-back portion and the lead wire portion extending through the folded-back portion are close enough to each other near each of the first and second power feed portions in the first and second radiation portions, respectively, to be electromagnetically coupled to each other. The power feed portions of the antenna are coupled to a wireless IC chip. The power feed portions may be coupled to a feed circuit in a feed circuit board coupled to a wireless IC.

Abstract: A wireless communication device having a feeding circuit that includes an RFIC chip; and antenna elements connected to the feeding circuit. The feeding circuit FC further includes a first resonant loop including the RFIC chip and multiple inductance elements; and a second resonant loop including a capacitance element and multiple inductance elements. Moreover the inductance elements of each of the first and second resonant loops, the shared inductance elements are included. The second resonant loop includes an antenna port for connection to the antenna elements.

Abstract: An antenna device includes a base and a coil element that includes a coil conductor, first and second terminals respectively connected to first and second ends of the coil conductor, and third and fourth terminals extended from a secondary coil conductive portion of the coil conductor. First, second, third, and fourth electrodes and a radiating conductor are disposed on the base. The first electrode is connected to the first terminal and links to a power feed circuit. The second electrode is connected to the second terminal and links to the power feed circuit. The third electrode is connected to the third terminal. The fourth electrode is connected to the fourth terminal. The radiating conductor links to the third electrode and the fourth electrode. The coil element and the radiating conductor are magnetically coupled to a communication-partner antenna.

Abstract: An antenna device includes an RFIC element, a power supply coil connected to the RFIC element, and a first coil conductor including a first large-diameter loop shaped conductor and a first small-diameter loop shaped conductor. The first coil conductor functions as a booster antenna and forms an antenna resonance circuit. The power supply coil is accommodated in a recess surrounded by the first small-diameter loop shaped conductor. The power supply coil is disposed in a manner that its winding direction is aligned with the winding axis direction of the first small-diameter loop shaped conductor and its outer diameter is inside a coil opening of the first small-diameter loop shaped conductor in a planar view. The power supply coil is coupled to the first small-diameter loop shaped conductor through a magnetic field.

Abstract: A method for manufacturing a carrier tape housing a plurality of electronic components with seal materials includes forming housing holes in tape-shaped main body with first and second principal surfaces along a longitudinal direction of the tape-shaped main body, the housing holes penetrating from the first principal surface to the second principal surface, affixing an adhesive layer of a tape-shaped seal material to the second principal surface of the tape-shaped main body to cover the housing holes, forming cuts in the tape-shaped seal material to separate portions defining and functioning as the seal materials including portions at least partially overlapping with the respective housing holes in a planar view from the other portions, and providing chip-shaped electronic component into each of the housing holes of the tape-shaped main body and fixing the electronic component to the adhesive layer of the seal material exposed in each of the housing holes.

Abstract: An inductor bridge is configured to bridge-connect a first circuit and a second circuit to each other, and includes a flexible flat plate base body, a first connector at a first end portion of the base body and connected to the first circuit, a second connector at a second end portion of the base body and connected to the second circuit, and an inductor section in the base body between the first connector and the second connector. The inductor section includes conductor patterns including a plurality of layers. The inductor bridge further includes a bending portion between the inductor section and the first connector, and a slot at an inner side of the bending portion that reduces a thickness of the base body.

Abstract: A wireless communication device that includes a first electrode connected to a first terminal electrode of an RFIC element and a second electrode connected to a second terminal electrode of the RFIC element. Moreover, the first electrode has a longitudinal direction and a lateral direction and has a first portion connected to the first terminal electrode and a second portion that faces the first portion and the second electrode. The first portion has an extended portion that extends in the longitudinal direction beyond a connection point between the second electrode and the second terminal electrode.