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.

Abstract: A resin molded body with an RFIC package incorporated therein is insert-molded incorporating therein a metal core material and an RFIC element connected to the metal core material. The RFIC element includes a ceramic multi-layer substrate that incorporates therein a coil conductor, and an RFIC chip mounted on a mounting surface of the multi-layer substrate. The RFIC chip is connected to the coil conductor by nano-particle bonding or ultrasonic bonding. The coil conductor is coupled with the core material in a magnetic field coupling scheme.

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: An RFID tag 10 attachable to an article in use that includes an RFIC module including an RFIC chip and a helical coil connected to the RFIC chip, and an antenna member that is a threadlike conductor having a portion helically wound on the RFIC module around a winding axis extending parallel to an extending direction of a coil axis of the helical coil.

Abstract: An RFID tag that can be used when attached to a metal surface of an article. The RFID tag includes a tag main body including a top plate with a back surface facing the metal surface across a space and a top plate support extending from the top plate on the back surface side and including a leading end surface attached to the metal surface. An antenna pattern is disposed on the back surface of the top plate of the tag main body, and an RFIC chip is disposed on the back surface of the top plate part of the tag main body and connected to the antenna pattern. The antenna pattern includes an extension part extending away from the back surface of the top plate part of the tag main body toward the metal surface and connecting to the metal surface by direct current or capacitively.

Abstract: A reader device is provided having a wider readable area and a table with the reader device. The reader device includes an antenna element communicating with an RFID tag attached to an article, a reader module electrically connected to the antenna element and reading information of the RFID tag through the antenna element, and a case housing the antenna element and the reader module. Moreover, the antenna element includes a first dipole antenna having a first element axis extending in a first direction, and a second dipole antenna having a second element axis extending in a second direction crossing the first direction.

Abstract: In a wireless communication device, an impedance matching circuit includes a first layered coil conductor one end of which is connected to a first I/O terminal, the first layered coil conductor includes loop conductors including a plurality of layers, and a second layered coil conductor one end of which is connected to the other end of the first layered coil conductor and the other end of which is respectively connected to a second I/O terminal, the second layered coil conductor includes loop conductors including a plurality of layers. On the surface of the wireless communication device, first and second terminal electrodes are connected via first and second in-plane conductors and first and second inter-layer conductors to any of the loop conductors of the first and second layered coil conductors.

Abstract: A radio IC device includes an electromagnetic coupling module includes a radio IC chip arranged to process transmitted and received signals and a feed circuit board including an inductance element. The feed circuit board includes an external electrode electromagnetically coupled to the feed circuit, and the external electrode is electrically connected to a shielding case or a wiring cable. The shielding case or the wiring cable functions as a radiation plate. The radio IC chip is operated by a signal received by the shielding case or the wiring, and the answer signal from the radio IC chip is radiated from the shielding case or the wiring cable to the outside. A metal component functions as the radiation plate, and the metal component may be a ground electrode disposed on the printed wiring board.

Abstract: An electronic apparatus includes an antenna device, a circuit board, and a housing containing the antenna device and the circuit board. The inner surface of the housing is spaced apart from the circuit board. The antenna device includes an antenna unit, a matching circuit unit connected to the antenna unit, a transmission line unit connected to the matching circuit unit, and a connecting portion included in the transmission line unit. The antenna device is disposed along the inner surface of the housing. The connecting portion is connected to a circuit of the circuit board. The antenna device includes a ground connection portion in the matching circuit unit in a region where the antenna device is disposed along the inner surface of the housing. The ground connection portion electrically connects a second ground conductor of the antenna device to a first ground conductor on the housing.

Abstract: A UHF band RFID tag with stable communication characteristics when attached to a metal surface. The UHF band RFID tag includes a resin block having a first surface serving as an attaching surface to the metal surface and a second surface opposing the first surface, a substrate on a second surface side of the resin block, a RFIC element mounted on the substrate, and a loop electrode connected to the RFIC element. The loop electrode includes metal bodies provided in the resin block and extending in a direction intersecting the first and second surfaces, a flat plate electrode on a first surface side of the resin block and connecting first ends of the metal bodies, conductor patterns on the second surface side of the resin block and connecting the RFIC element and second ends of metal bodies.

Abstract: A method for manufacturing a carrier tape housing electronic components with seal materials includes preparing a tape-shaped main body including housing holes penetrating from one surface to other surface along a longitudinal direction, preparing a tape-shaped seal material including an adhesive layer on the one surface and including pairs of terminal electrodes on the adhesive layer, affixing the adhesive layer to the other surface such that respective portions of the paired terminal electrodes are located within each of the housing holes in a planar view, forming cuts in the tape-shaped seal material to separate portions defining and functioning as the seal materials including portions overlapping with the respective housing holes in a planar view from the other portions, and providing an electronic component into each housing hole and connecting the respective portions of the paired terminal electrodes located within each of the housing holes to the electronic component.

Abstract: A cable type antenna is provided having a small-sized lightweight configuration and enabling specifying of a radiation region having a desired antenna length. The cable type antenna may be sectionalized into a first region on the power feeding circuit side and a second region on the leading end side. The cable type antenna of the present disclosure further comprises a balanced-to-unbalanced transformer element disposed between the first region and the second region, wherein the balanced-to-unbalanced transformer element includes an unbalanced-side terminal connected to the first region and a balanced-side terminal connected to the second region configured to allow the first region to serve as a non-radiation part and the second region to serve as a radiation part.

Abstract: An RFID tag is provided that can be used when attached to a metal surface of an article. The RFID tag includes a tag main body including a top plate with a back surface facing the metal surface across a space and a top plate support extending from the top plate on the back surface side and including a leading end surface attached to the metal surface. An antenna pattern is disposed on the back surface of the top plate of the tag main body, and an RFIC chip is disposed on the back surface of the top plate part of the tag main body and connected to the antenna pattern. The antenna pattern includes an extension part extending away from the back surface of the top plate part of the tag main body toward the metal surface and connecting to the metal surface by direct current or capacitively.

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: An RFID tag is provided that includes an RFIC module with a base substrate and an RFIC chip, and an antenna element. A principal surface of the base substrate is provided with a first chip connection terminal connected to a first input/output terminal of the RFIC chip, a second chip connection terminal connected to a second input/output terminal, a first module-side terminal connected by direct current or capacitively coupled to a first antenna-side terminal of the antenna element, a second module-side terminal connected by direct current or capacitively coupled to a second antenna-side terminal, a first wiring pattern connecting the first chip connection terminal and the first module-side terminal, a second wiring pattern connecting the second chip connection terminal and the second module-side terminal, and a third wiring pattern connecting the first module-side terminal and the second module-side terminal.

Abstract: An antenna device is provided that can be designed easily and includes a flat antenna of which communication characteristics do not change significantly even when there exist metallic objects or the like in the surroundings. Moreover, the flat antenna is provided with an antenna-side signal line path conductor, an antenna-side first ground conductor, a matching circuit part, and an antenna-side connector part which are provided in an antenna-side insulator. The antenna device further includes a signal transmission cable that is provided with a radiation area setting part in the vicinity of a cable-side connector part. The antenna device is designed such that, by connecting the antenna-side connector part and the cable-side connector part to each other, substantially the entire surface of the flat antenna serves as a radiation part that radiates electromagnetic waves.

Abstract: An RFID tag manufacturing method is provided that includes arranging a plurality of RFIC elements in a housing tool at a first arrangement density; and extracting an RFIC element group out of the plurality of RFIC elements arranged in the housing tool. Moreover, the extracted RFIC element group has a second arrangement density that is lower than the first arrangement density and that corresponds to an arrangement density of a plurality of antenna patterns arranged on an antenna substrate. The method includes disposing the RFIC element group onto the plurality of antenna patterns of the antenna substrate while maintaining the second arrangement density.

Abstract: An auxiliary antenna is provided that enables communication between a small antenna of an RFID tag and an antenna of a reader device without using a small antenna as the antenna of the reader device. The auxiliary antenna is an auxiliary antenna configured to expand a communication range of an antenna of an RFID tag to enable communication between the small antenna included in the RFID tag and an antenna included in a reader device. The auxiliary antenna includes a resonance loop group in which a plurality of resonance loops having a resonance frequency corresponding to a communication frequency is arranged to be coupled through a magnetic field. Moreover, the resonance loop group has an antenna area larger than the antenna area of the antenna of the RFID tag and equivalent to or larger than the antenna area of the antenna of the reader device.

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.