A system and a method for inspecting components of a turbojet engine using RFID tags and an associated interrogator device. The inspection system includes at least one RFID tag associated with a component of the turbojet engine and an interrogator device arranged so as to be able to communicate with the RFID tag, the interrogator device being equipped with an RFID antenna arranged so as to be able to be inserted into a nacelle compartment of the turbojet engine through an inspection opening intended for the passage of an endoscope probe.

A method of configuring a contactless communication device is provided. The contactless communication device includes integrated circuits hosting at least two applications compatible with different communication protocols or the same communication protocol and using different communication parameters and a contactless communication circuit. The method includes stopping, by the contactless communication circuit, the transmission of answers of the contactless communication device to requests transmitted by a proximity coupling reader during a transaction initiated by the reader to cause the initiation by the reader of a new transaction.

An RFID tag includes a circuit board, an RFID IC and a functional module. The circuit board has an antenna conductor. The RFID IC is mounted on the circuit board. The functional module is connected to the circuit board through a lead wire. An electrical length of a connection wiring that electrically connects the functional module to an element on the circuit board is within ±10% of an integral multiple of a half wavelength of a radio signal that the RFID IC transmits or receives.

A noncontact communication medium includes an antenna coil that is formed on a substrate having a through-hole and induces power with application of a magnetic field from an outside, and a processing circuit that operates using the power induced by the antenna coil. The processing circuit is inserted in the middle of the antenna coil. The antenna coil is wound in a loop shape along an outer periphery of the substrate. An outer peripheral end of the antenna coil is connected to the through-hole. A portion of the antenna coil on the substrate facing a position of the through-hole has a shape recessed to an inner peripheral side of the antenna coil in a winding direction.

A noncontact communication medium includes a processing circuit that is mounted on a substrate on which an antenna coil is formed, and has an internal capacitor, and an external capacitor that composes a resonance circuit configured to resonate at a predetermined resonance frequency, along with the internal capacitor and the antenna coil. A method for manufacturing a noncontact communication medium includes measuring a temporary resonance frequency in a state in which the external capacitor is not connected to the processing circuit and in a state in which the processing circuit is connected to the antenna coil, and deciding capacitance of the external capacitor based on a degree of difference between a reference resonance frequency in a case where the noncontact communication medium performs communication with an outside through a magnetic field and a temporary resonance frequency.

A noncontact communication medium comprises an antenna coil that is formed in a substrate and induces power with application of a magnetic field from an outside, and a processing circuit that operates using the power induced by the antenna coil. The substrate has a plurality of layers in a thickness direction. The antenna coil is wound in a loop shape in a first layer among the plurality of layers. One end and the other end of the antenna coil are electrically connected through an auxiliary antenna coil wound in a loop shape in a second layer different from the first layer among the plurality of layers. At least one of the first layer or the second layer is buried in the substrate.

An RFID tag includes a circuit board, an RFID IC, a functional module, a case and a lid. The circuit board has a main part and an extended part. The extended part extends along an edge of the main part and includes an antenna conductor. The RFID IC is mounted on the circuit board. The functional module is disposed so as to overlap the circuit board. The case accommodates the circuit board and the functional module. The lid closes an opening of the case. The main part of the circuit board is held at a position away from an inner bottom surface of the case with the functional module as an obstacle in a direction toward the lid.

A method of manufacturing a card according to an embodiment of the present invention includes the steps of: processing a wood sheet; stacking the wood sheet on an inlay sheet including an antenna that will be connected to a COB chip; milling an area corresponding to the chip on the wood sheet, and forming a residual layer of a thickness smaller than that of the wood sheet; exposing end portions of the antenna passing through the residual layer from the inlay sheet located under the residual layer of the wooden sheet; and electrically connecting the chip and the end portions of the antenna.

A contactless information medium is provided with a spiral wiring on an IC chip. The IC chip has first and second electrodes, and the spiral wiring has first and second end portions electrically connected to the first and second electrodes, respectively. A first relay wiring is connected to the first electrode via a first connecting hole. The first end portion is connected to the first relay wiring via a third connecting hole formed on an inner peripheral side of the spiral wiring. The first relay wiring includes a rectangular region diagonally including the first connecting hole and the third connecting hole.

An RFID tag includes a circuit board, an RFID IC, a functional module, a case and a lid. The circuit board has a main part and an extended part. The extended part extends along an edge of the main part and includes an antenna conductor. The RFID IC is mounted on the circuit board. The functional module is disposed so as to overlap the circuit board. The case accommodates the circuit board and the functional module. The lid closes an opening of the case. The main part of the circuit board is held at a position away from an inner bottom surface of the case with the functional module as an obstacle in a direction toward the lid.