Provided is an RFID tag capable of communicating while in contact with a conductor and having excellent impact resistance. The RFID tag 1 of the present invention comprises: a first waveguide part 20; a resonance part 30 directly coupled to the first waveguide part 20; a second waveguide part 40 disposed with a gap 61 from the resonance part 30 and electromagnetically or electrostatically coupled to the resonance part 30; an RF chip 50 directly coupled to the resonance part 30; and an insulating material 10 to which the first waveguide part 20, the resonance part 30, and the second waveguide part 40 are fixed. The resonance part is disposed between the first waveguide part and the second waveguide part. By bringing the conductor into contact with the waveguide part and electrically connecting the conductor to the waveguide part, it is possible to obtain the same effect as that obtained by increasing the area of the waveguide part, and radio waves can be received from a wider range.
Provided is an RFID tag for rubber products that is small and has excellent mass producibility and durability. An RFID tag 1 for rubber products comprises a coupling transformer 40, an RF chip 10 connected to a secondary side of the coupling transformer, a printed circuit board 20 on which the RF chip is mounted, and an antenna 30. The antenna includes a coil part 31, a first element 32, and a second element 33 that is shorter than the first element and extends parallel to the first element. The number of windings of the coil part is smaller than the number of windings on the secondary side of the coupling transformer. The coil part has a vertical two-layer structure comprising an upper annular part 31a and a lower annular part 31b, and includes a cone-shaped printed circuit board holding part 38 in which the diameter of the upper annular part is made larger than the diameter of the lower annular part. By holding the printed circuit board by the printed circuit board holding part, the coil part constitutes the primary side of the coupling transformer. Since the printed circuit board can be fitted into the printed circuit board holding part, the RFID tag for the rubber product is easily manufactured and mass productivity is enhanced.
Provided is an RFID tag for rubber products that is small and has excellent mass producibility and durability. An RFID tag 1 for rubber products comprises a coupling transformer 40, an RF chip 10 connected to a secondary side of the coupling transformer, a printed circuit board 20 on which the RF chip is mounted, and an antenna 30. The antenna includes a coil part 31, a first element 32 extending from one end part of the coil part, and a second element 33 shorter than the first element and extending from the other end part parallel to the first element. The number of windings of the coil part is smaller than the number of windings on the secondary side of the coupling transformer, and the coil part constitutes a primary side of the coupling transformer by holding the printed circuit board in a wire-gap of the coil part. At least one of the first element and the second element is provided with an expansion/contraction part 31 that expands and contracts in the longitudinal direction of the element. Since the expansion/contraction part is appropriately deformed with respect to external force, the first element and the second element are less likely to be broken or deformed, so that the durability of the RFID tag is improved.
Provided are an antenna for RF tags that operates in a wide frequency band, and an RF tag. An antenna 1 for RF tags according to the present invention comprises an insulating substrate 10, a main waveguide element 20, a base plate 30 that is electrically connected to the main waveguide element, an auxiliary waveguide element 40 that is connected to the main waveguide element via an IC chip 60, and a capacitor 203 for frequency adjustment. At least part of the auxiliary waveguide element overlaps the base plate with a coating layer 70 composed of an insulating material interposed therebetween, whereby a capacitor is formed by the auxiliary waveguide element, the coating layer, and the base plate. The insulating substrate is enclosed in ring form by the main waveguide element, the base plate, and the auxiliary waveguide element. The capacitor for frequency adjustment is provided between the main waveguide element and the auxiliary waveguide element. Due to the insulating substrate being enclosed in ring form, inductance increases, a resistance value increases, and the Q value of a series resonance circuit decreases. As a result, a bandwidth increases, making it possible to obtain an antenna for RF tags that operates in a wide frequency band and an RF tag.
An RFID tag 1 for a rubber product is provided with a coupling transformer 40, an RF chip 10 connected to a secondary side of the coupling transformer, a printed circuit board 20 on which the RF chip is mounted, and an antenna 30, wherein the antenna comprises a coil section 31, a first element 32 extending from one end of the coil section, and a second element 33 extending from another end of the coil section in parallel with the first element and shorter than the first element, the coil section has fewer windings than the coupling transformer 40 on the secondary side, and the printed circuit board 20 is held in a gap between strands of the coil section such that the coil section forms a primary side of the coupling transformer.
To provide a safe RFID data collecting device and an RFID data collection system with which there is no leakage of information being written to an RFID tag or information being read from the RFID tag, even if communication with the RFID tag is intercepted. This RFID data collecting device includes an RFID reader 10, a wired and wireless LAN connecting unit 20, a portable telephone communication unit 30, and a system control unit 40 including a processor 41 and a memory 42, wherein: the system control unit 40 is provided with a common key system encryption/decryption function; data written to an RFID tag 80 are encrypted before being written; data read from the RFID tag 80 are decrypted after being read; and a common key for encryption/decryption is saved in a SIM card 32 provided in the portable telephone communication unit.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
H04B 5/02 - Near-field transmission systems, e.g. inductive loop type using transceiver
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
To provide a coil that has satisfactory characteristics even when the coil is used by being attached to or embedded in a tire, the coil forming an RFID tag in combination with a substrate on which an RF chip and a pattern coil connected to the RF chip are mounted. A coil 30 is held in a housing 75 accommodating a substrate 90 and is wound around the substrate 90. A first end of the coil 30 extends from the substrate 90 and forms a first element 50 of an antenna. A second end of the coil 30 extends from the substrate 90 and forms a second element 60 of the antenna. The first element 50 and the second element 60 are arranged in parallel to each other, and the first element 50 has a longer extension length than the second element 60. The coil 30 and a pattern coil 40 form a coupling transformer 20. The number of windings in the coil 30 is smaller than the number of windings in the pattern coil 40.
[Problem] To provide a series antenna switching system and an RF-tag reading system for shelves, which make it possible to readily read RF tags of a large number of items displayed in shelves, irrespective of the orientations or directions of the items. [Solution] A series antenna switching system 100 for shelves includes: antennas 501, ..., 50n disposed at individual shelves 901, ..., 90n; antenna switches 221, ..., 22n disposed at the individual shelves 901, ..., 90n; an antenna switching controller 210 that controls the antenna switches 221, ..., 22n; a reader 200 that reads signals from the antennas 501, ..., 50n; and a high-frequency cable 300 that connects the reader 200 in series with the antennas 501, ..., 50n. The reader 200 reads RF tags attached to articles disposed at the individual shelves 901, ..., 90n via the antennas 501, ..., 50n.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
B65G 1/137 - Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
[Problem] To provide a patch antenna capable of reducing the weight thereof. [Solution] This patch antenna 501-50n comprises: a radiation element member 560; a ground plate member 580 provided to face the radiation element member 560; an intermediate member 570 which maintains a gap between the radiation element member 560 and the ground plate member 580; a radiation element connection power feed plate 565 which connects one electrode of a high-frequency cable 300; and a ground plate connection power feed plate 585 which connects the other electrode of the high-frequency cable 300, wherein the intermediate member 570 is composed of a foamed body.
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
Provided are a dual RF tag antenna and a dual RF tag that have a long communication range and that operate in two types of frequency bands. A dual RF tag antenna 1 of the present invention is provided with an insulating base material 10, a main waveguide element 20 provided on one face of the insulating base material, an auxiliary waveguide element 30 disposed such that at least a portion thereof faces the surface of the main waveguide element, a ground plate 40 provided on another face of the insulating base material, a feed unit 50, and a short circuiting unit 60, which all together constitute a planar inverted F antenna. The area of the portion where the auxiliary waveguide element and the main waveguide element face one another changes as a result of the the position of the auxiliary waveguide element being changed. As a result, the wavelength λ of radio waves can be switched between a low-frequency side and a high-frequency side, and radio waves in two types of frequency bands can be received at high sensitivity.
The present invention provides a rubber product RFID tag which is compact and has outstanding mass-production characteristics and durability, and a method for manufacturing a rubber product RFID tag. A rubber product RFID tag 1 according to the present invention is characterized by comprising: a coupling transformer 40; an RF chip 10 connected to a secondary side of the coupling transformer; a printed substrate 20 on which the RF chip is mounted; and an antenna 30, wherein the antenna comprises a coil section 31, a first element 32 which extends from one end of the coil section, and a second element 33 which is shorter than the first element and extends parallel to the first element from another end of the coil section, and the number of windings in the coil section is less than the number of windings of the secondary side of the coupling transformer 40, and the primary side of the coupling transformer is configured by the coil section by retaining the printed substrate 20 in the gap between the wires of the coil section.
G06Q 20/34 - Payment architectures, schemes or protocols characterised by the use of specific devices using cards, e.g. integrated circuit [IC] cards or magnetic cards
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
B60C 19/00 - Tyre parts or constructions not otherwise provided for
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 19/02 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic Details
An RF tag includes an RF tag antenna and an IC chip. The RF tag antenna is provided with: an insulation base material having a first main surface, a second main surface, and a first lateral surface; a first waveguide element provided on the first main surface; a second waveguide element provided to extend from the second main surface to the first lateral surface and the first main surface; and a power supply part and a short circuiting part that are provided on the first main surface. A planar inverted-F antenna is formed from the insulation base material, the first waveguide element, the second waveguide element, the power supply part, and the short circuiting part. The lengths of the power supply part and the short circuiting part are set such that the resonant frequency of an LC resonant circuit coincides with the reception frequency of radio waves.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
[Problem] To provide a coil that has satisfactory characteristics even when the coil is used by being attached to or embedded in a tire, the coil forming an RFID tag in combination with a substrate on which an RF chip and a pattern coil connected to the RF chip are mounted. [Solution] A coil 30 is held in a housing 75 accommodating a substrate 90 and is wound around the substrate 90. A first end of the coil 30 extends from the substrate 90 and forms a first element 50 of an antenna. A second end of the coil 30 extends from the substrate 90 and forms a second element 60 of the antenna. The first element 50 and the second element 60 are arranged in parallel to each other, and the first element 50 has a longer extension length than the second element 60. The coil 30 and a pattern coil 40 form a coupling transformer 20. The number of windings in the coil 30 is smaller than the number of windings in the pattern coil 40.
[Problem] To provide: an RF tag antenna which is able to be fitted to a tire that contains a steel wire and a carbon powder; an RF tag; a tire which is provided with an RF tag; and a tire with a built-in RF tag. [Solution] An RF tag antenna 10 according to the present invention is used by being fitted to a tire 920 that contains a steel wire 925 and a carbon powder; and the RF tag antenna 10 comprises a ground part 30 and a potential difference formation part 20. The potential difference formation part 20 and the ground part 30 constitute a resonant circuit (LC); and the ground part 30 is electrically connected to the steel wire 925.
[Problem] To provide a safe RFID data collecting device and an RFID data collection system with which there is no leakage of information being written to an RFID tag or information being read from the RFID tag, even if communication with the RFID tag is intercepted. [Solution] This RFID data collecting device includes an RFID reader 10, a wired and wireless LAN connecting unit 20, a portable telephone communication unit 30, and a system control unit 40 including a processor 41 and a memory 42, wherein: the system control unit 40 is provided with a common key system encryption/decryption function; data written to an RFID tag 80 are encrypted before being written; data read from the RFID tag 80 are decrypted after being read; and a common key for encryption/decryption is saved in a SIM card 32 provided in the portable telephone communication unit.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
[Problem] To provide an antenna for an RFID reader/writer configured so that, in order to prevent the influence of an RFID tag in a position separated on the horizontal plane, the antenna suppresses radiation of horizontal waves and radiation gain in a horizontal plane, and uniformly radiates vertical waves in one direction that is vertical relative to the antenna surface. Further, to provide a reader/writer device comprising the antenna. [Solution] A slot antenna 150 is for a reader/writer 140 of an RFID tag 120, the slot antenna 150 comprising: a first antenna substrate 10; a first electrode 20 for slot forming which is provided on the first antenna substrate 10 and has a spiral-shaped slit; a spiral-shaped second electrode 30 for slot forming which is provided inside of the slit of the first electrode 20 and is at a prescribed gap from a first electrode 10; a second antenna substrate 50 facing the first antenna substrate 10; a third electrode 55 provided on the second antenna substrate; and a power supply line 40 which supplies power between the second electrode 30 for slot forming and the third electrode 55.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
[Problem] To provide a RFID tag little affected by the relative dielectric constant of carbon black included in tire rubber even when used by being attached to or embedded in a tire. [Solution]A tire RFID tag 100 is provided with: an RF chip 10; a first element 50 formed by a braided conductor wire; a second element 60; a coupling transformer 20; and a printed board 90. A rail-like groove 65 is provided to the printed board 90. The first element 50 is disposed in the groove 65, and extends from the printed board 90. The first element 50 is connected to one end of the primary side 30 of the coupling transformer 20. The second element 60 is connected to the other end of the primary side 30 of the coupling transformer 20. The RF chip 10 is connected to the secondary side 40 of the coupling transformer 20. The number of windings of the primary side 30 in the coupling transformer 20 is smaller than that of the secondary side 40.
[Problem] To provide a heat-resistant IC tag having excellent heat insulating property and a long communication distance. [Solution] A heat-resistant IC tag 100 comprises an antenna 200 and an IC module 300. The antenna 200 includes an insulating base material 210 having a first main surface and a second main surface, a first radiating plate 340 provided on the first main surface, a second radiating plate 350 provided on the second main surface, and a conductive member 360 connecting the first radiating plate 340 and the second radiating plate 350; the IC module 300 is electromagnetically coupled to the first radiating plate 340; a holding portion 220 is provided on the insulating base material 210; the IC module 300 is held in a recess 222 formed in the holding portion 220; and a space portion 224 is formed between the inner wall surface of the recess 222 and the outer surface of the IC module 300.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 19/02 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic Details
19.
RFID TAG WITH BOOST ANTENNA, CONDUCTOR PROVIDED WITH RFID TAG WITH BOOST ANTENNA, AND RFID SYSTEM INCLUDING RFID TAG WITH BOOST ANTENNA
[Problem] To provide an RFID tag with a boost antenna, which can enhance a communication distance by combining a boost antenna with a small RFID tag, a conductor provided with an RFID tag with a boost antenna, and an RFID system including an RFID tag with a boost antenna. [Solution] An RFID tag 300 with a boost antenna includes a boost antenna 100 and an RFID tag 200, wherein the boost antenna 100 includes: a radiation unit 10 which is conductive; a ground unit 30 which faces the radiation unit 10 and is conductive; and a short circuit unit 20 which connects one end of the radiation unit 10 and one end of the ground unit 30, and electrically connecting the radiation unit 10 and the ground unit 30 with each other, and wherein the RFID tag 200 is arranged at a position close to the short circuit unit 20 on the ground unit 30, wherein each of the boost antenna 100 and the RFID tag 200 has resonance characteristics.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
H01Q 19/02 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic Details
[Problem] To provide an antenna for an RF tag and an RF tag with which a communication distance between reading devices can be extended. [Solution] This antenna for an RF tag is provided with: an insulation member 40; a waveguide element 20 provided on one side of the insulation member 40; a waveguide element 30 disposed so as to face the waveguide element 20 and provided on the other side of the insulation member 40; a power supply unit 50 having one end electrically connected to the waveguide element 30; and a short-circuit unit 60 having one end electrically connected to the wave guide element 20 and the other end electrically connected to the waveguide element 30, wherein the permittivity of an insulation region A1 on the waveguide element 20 side among regions sandwiched between the waveguide element 20 and the waveguide element 30 is different from the permittivity of an insulation region A2 on the waveguide element 30 side among said regions.
There is provided an RF tag that can be mounted in a cavity of a member formed of a conductor having the cavity therein, and has high communication performance. An RF tag 1 of the present invention is an RF tag that is mounted in a cavity 101 of a conductor-made member 100 having the cavity 101 therein, and includes at least a free space antenna 10, a resonance circuit 20, an IC chip 30, a closed space antenna 40, and a substrate 50 for supporting the closed space antenna, a portion of the free space antenna is exposed from the cavity to the outside, and the substrate supports the closed space antenna so that the closed space antenna is not in contact with the inner surface of the conductor-made member. The closed space antenna, the substrate and the conductor-made member forms a capacitor portion C2.
[Problem] To provide: a small and thin RF tag that is of a planar inverted-F antenna form and that has a resonant frequency coincident with the reception frequency of radio waves; and an RF tag-equipped conductor that is provided with the RF tag and a conductor. [Solution] An RF tag 100 includes a RF tag antenna 10 and an IC chip 80. The RF tag antenna 10 is provided with: an insulation base material 40 having a first main surface, a second main surface, and a first lateral surface; a first waveguide element 20 provided on the first main surface; a second waveguide element 30 provided to extend from the second main surface to the first lateral surface and the first main surface; and a power supply part 50 and a short circuiting part 60 that are provided on the first main surface. A planar inverted-F antenna is formed from the insulation base material 40, the first waveguide element 20, the second waveguide element 30, the power supply part 50, and the short circuiting part 60. The lengths of the power supply part 50 and the short circuiting part 60 are set such that, in terms of inductance (L), the resonant frequency of an LC resonant circuit coincides with the reception frequency of radio waves.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
23.
RF tag antenna, RF tag, and RF tag having conductive body formed therein
An RF tag has a particular structure of an RF tag antenna to which an IC chip is mounted. The RF tag antenna includes: an inductor pattern section having a C-shape and configured in a form of a flat plate; a notch section formed by cutting out a periphery of the inductor pattern section; an antenna section formed around the notch section; and a ground section provided in continuation with the inductor pattern section and configured in a form of a flat plate.
[Problem] To provide: an RF tag antenna which is able to be fitted to a tire that contains a steel wire and a carbon powder; an RF tag; a tire which is provided with an RF tag; and a tire with a built-in RF tag. [Solution] An RF tag antenna 10 according to the present invention is used by being fitted to a tire 920 that contains a steel wire 925 and a carbon powder; and the RF tag antenna 10 comprises a ground part 30 and a potential difference formation part 20. The potential difference formation part 20 and the ground part 30 constitute a resonant circuit (LC); and the ground part 30 is electrically connected to the steel wire 925.
[Problem] To provide a RF tag and a RF tag system that can stably communicate with an RF reading device irrespective of the winding axis direction of an antenna coil of the RF tag, and a structure reading device and a structure reading system that can communicate with the RG tag disposed at or near the bottom of a hole through which a transmission/reception radio wave of a RF reader cannot penetrate. [Solution] This RF tag 700 includes: a coil that is formed by an insulating substrate 10 having a rectangular parallelepiped shape, a metal wiring 60 on a first surface of the insulating substrate 10, a metal wiring 65 on a second surface opposite to the first surface, and conducive vias 70 for connecting the metal wiring 60 on the first surface and the metal wiring 65 on the second surface; and an IC chip 80 that is disposed roughly at the center of the first surface of the insulating substrate 10.
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
26.
STRUCTURE-READING DEVICE, STRUCTURE-READING SYSTEM
[Problem] To provide a structure-reading device and a structure-reading system that make it possible to communicate with an RF tag that has been arranged at or near a hole bottom through which radio waves that are transmitted/received by an RF reader do not pass. [Solution] The present invention includes: an RF tag 700 that is provided at the bottom of a key hole 610 or near the bottom of a key hole 610 of a structure 600 that includes the key hole 610; and an insertion member 100 that can be partially inserted into the key hole 610. The insertion member 100 has a first transmission/reception antenna 110 and a second transmission/reception antenna 120. A transmission line 130 is formed between the first transmission/reception antenna 110 and the second transmission/reception antenna 120.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
[Problem] To provide: an RF tag that can ensure communication performance when embedded in wide tires, including vulcanized tires; and an RF-tagged tire that incorporates such an RF tag. [Solution] This RF tag 10: is a dipole-antenna RF tag 10 that is to be embedded in a tire; and comprises an IC chip 3, a first antenna wire 1 and a second antenna wire 2 that are respectively connected to two terminals of the IC chip 3, and a chip inductor 4 that is connected between the two terminals of the IC chip 3. The chip inductor 4 and the internal equivalent capacity 5 of the IC chip 3 form a rectification circuit. The rectification circuit rectifies the impedance between the IC chip and the antenna lines at a communication frequency for the RF tag 10. This RF-tagged tire 100 has an RF tag 10 that incorporates a rectification circuit embedded therein, which makes it possible for a reading device to reliably read information that is unique to the tire.
Provided is an RF tag label which enables an RFID component to be embedded easily in a rubber product such as a tire without additional complicated processing, is not easily affected by variation in rubber components of a rubber product due to vulcanization or the like, or pressure during shaping, and is able to prevent a reduction in the communication distance. Also provided is an RF-tag-label-equipped rubber product in which an RF tag label is embedded. This RF tag label has at least one RFID component (120) and a holding member (111) for holding the RFID component (120), and the RFID component (120) is secured to a securing surface (113), which is one side surface of the holding member (111).
[Problem] To provide an RF tag antenna, an RF tag, and an RF tag with a conductor that are omnidirectional and nondirectional, and have a long communication distance. [Solution] An RF tag antenna 100 to which an IC chip 500 is attached comprises: an insulating base material 140 having a first surface, a second surface formed opposite to the first surface, and a thickness between the first surface and the second surface; a flat plate-like antenna part 120 provided on the first surface; a flat plate-like ground part 130 provided on the second surface and disposed opposite to the antenna part 120, a short-circuit part 160 provided so as to electrically short-circuit between the antenna part 120 and the ground part 130; and a power supply part 170 provided on the first surface and configured to supply power to the IC chip 500. The antenna part 120 includes a first antenna part 121 and a second antenna part 122 that are disposed to extend in directions orthogonal to each other, and the ground part 130 includes a first ground part 131 and a second ground part 132 that are disposed to extend in directions orthogonal to each other.
[Problem] To provide an RF tag antenna 200 and an RF tag 100 that can be attached to a resin material containing carbon powder. [Solution] An RF tag antenna 200 is used in a state of being attached to resin materials 910, 920 containing carbon powder. The RF tag antenna 200 includes a ground portion 210, a potential difference forming portion 220 for forming potential difference with respect to the ground portion 210, and an inductor pattern part 400 formed at the potential difference forming portion 220. The RF tag 100 includes the RF tag antenna 200 having the above configuration and an IC chip 500 provided at the RF tag antenna 200. The sponge member with an RF tag includes the RF tag 100 having the above configuration and a sponge member 800 provided with a mounting portion on which the RF tag 100 is mounted.
Provided is an RF Tag reader/writer capable of easily adjusting a resonant frequency and performing wireless communication with an RF tag. An RF tag reader/writer (10) performs wireless communication with an RF tag. The RF tag reader/writer (10) comprises an antenna (100) and a case (110) that stores the antenna (100) therein, and the antenna (100) has a ground plate (130) fixed to the case (110), a radiation plate (120) disposed at a predetermined interval from the ground plate (130), and an adjusting member (140) provided on at least one of the radiation plate (120) and the ground plate (130) and capable of adjusting a resonant frequency of the antenna (100). When the RF tag reader/writer (10) is mounted on a metal base (200), the antenna (100) is electrically coupled with the base (200).
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
H01Q 9/14 - Length of element or elements adjustable
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
[Problem] The present invention addresses the problem of providing a component management card whereby components stored in a component box can be managed, and long distance communication with a readout device can be achieved. [Solution] A component management card 210 is removably held by a holding section 230 attached to the outer surface of a component box 200 storing components therein. The component management card has: a component management card main body 220 formed of a resin; a RF tag 100 embedded in the component management card main body 220; and a metal plate 250 that is disposed in the component management card main body 220 or on the outer surface of the component management card main body 220 in a state of having a resin layer of the component management card main body 220 between the RF tag 100 and the metal plate, said metal plate being on the component box 200 side of the RF tag 100. The RF tag 100 includes at least an antenna 110 and an IC chip 80 that operates on the basis of radio waves transmitted from a readout device, and a waveguide plate, which is provided to the RF tag 100, and the metal plate 250 are electrically connected to each other via a constant capacitance.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
[Problem] To provide an antenna for an RF tag and an RF tag with which a communication distance between reading devices can be extended. [Solution] This antenna for an RF tag is provided with: an insulation member 40; a waveguide element 20 provided on one side of the insulation member 40; a waveguide element 30 disposed so as to face the waveguide element 20 and provided on the other side of the insulation member 40; a power supply unit 50 having one end electrically connected to the waveguide element 30; and a short-circuit unit 60 having one end electrically connected to the wave guide element 20 and the other end electrically connected to the waveguide element 30, wherein the permittivity of an insulation region A1 on the waveguide element 20 side among regions sandwiched between the waveguide element 20 and the waveguide element 30 is different from the permittivity of an insulation region A2 on the waveguide element 30 side among said regions.
[Problem] The present invention addresses the problem of providing a dual RF tag that does not need a switch. [Solution] This dual RF tag includes: a first inductor pattern 250; an IC chip 500; a second inductor pattern 260; a first insulating base material 310; a first radiation element section 210; a second radiation element section 220; a ground element section 400 that is disposed such that the first radiation element section 210 and the second radiation element section 220 are electrostatically coupled to the ground element section; and a second insulating base material 320. The first radiation element section 210 has a peripheral length that is different from that of the second radiation element 220, the first inductor pattern 250 is disposed so as to be inductively coupled to the second inductor pattern 260; and the second inductor pattern 260 and the ground element section 400 are electrically connected to each other.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 5/357 - Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
35.
RF TAG ANTENNA, RF TAG, AND RF TAG HAVING CONDUCTIVE BODY FORMED THEREIN
[Problem] To provide: an RF tag antenna that is non-directional and has a long communication range; an RF tag; and an RF tag having a conductive body formed therein. [Solution] This RF tag 100 is composed of an IC chip 500 and an RF tag antenna 110, and comprises: an inductor pattern part 150 having a C shape and configured in the shape of a flat plate; a notch part 170 formed by notching the vicinity of an inductor pattern part 140; an antenna part 120 formed in the vicinity of the notch part 170; and a ground part 130 provided continuous with the inductor pattern part 150 and configured in the shape of a flat plate.
[Problem] The objective of the present invention is to provide a dual RF tag which does not require a switch. [Solution] A dual RF tag 100 comprises a low band radiating element portion 210 formed in a top surface 270, a high band radiating element portion 220 having a different peripheral length to the low band radiating element portion 210, and a rear surface 280 opposing the top surface 270, and includes a ground element portion 400 formed in the rear surface 280, an inductor pattern portion 250 formed in the top surface 270, a balance coil portion 260 formed in the top surface 270, an IC chip 500 placed on the inductor pattern portion 250, and an insulating substrate 300 formed between the top surface 270 and the rear surface 280, wherein the ground element portion 400 and the balance coil portion 260 are electrically connected to one another.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
[Problem] To provide an RF tag and an RF tag device that can be easily attached to a product. [Solution] An RF tag 100 is formed by connecting: an inlet unit 200 that includes an IC chip 500 and an inductor pattern L; and an antenna unit 300 that is used for transmitting and receiving data transmitted from a reading device. A resonant circuit is formed by the internal capacitance of the IC chip 500 and an inductor pattern L. The RF tag communicates with the reading device.
[Problem] To provide an RF tag device which has a long communication distance and a wide open surface area and with which reading can be effectively carried out with a reading device even if the RF tag is attached to a pipe-shaped metal material such as high-pressure piping. [Solution] An RF tag device 110 is attached to a pipe-shaped metal material 200. The RF tag device 110 comprises a fixture 300, and an RF tag 100. The fixture 300 comprises: a flat plate part 320 that is attached to an opening end of the pipe-shaped metal material 200; and one or a plurality of locking pieces 330 that extend from the back surface of the flat plate part 320 into the pipe-shaped metal material 200, and that are locked to the inner peripheral surface of the pipe-shaped metal material 200. The RF tag 100 is fixed to the surface of the flat plate part 320.
[Problem] To provide an RF tag with which inductance can be made constant, and non-directional radio waves can be received by adhering a separable inlet to an antenna part. [Solution] In an RF tag 100, the following are separately formed: an attachment part 200 which comprises an IC chip 500 and an inductor pattern; and an antenna part 300 which is used for transmitting/receiving data transmitted from a reading device. The attachment part 200 is adhered to the antenna part 300 to form a capacitor with which communication with the reading device is performed.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
[Problem] To provide an RF tag fixture with which non-directional radio waves can be received even if an RF tag is fixed to a pipe-shaped metal material such as a material for construction, particularly a material for scaffolding. [Solution] An RF tag fixture 300 is for fixing an RF tag inside a pipe-shaped metal material 200. The fixture 300 comprises: a flat plate part 320 that is disposed on an opening end of the metal material 200; and a plate member 340 that extends from the back surface of the flat plate part 320 into the metal material 200 and that serves to support the RF tag 100. A conductive layer 380 that communicates from the flat plate part 320 to the plate member 340 is provided.
[Problem] To provide: an RF tag antenna capable of achieving a low profile or receiving a non-directional radio wave; and a method for manufacturing an RF tag and the RF tag antenna. [Solution] This RF tag antenna 100 is adhered to a conductive member 900, and has a plate-shaped antenna unit and an inductor pattern L. The plate-shaped antenna unit receives a radio wave transmitted from a reading device, and comprises: a first waveguide element part 210 and a second waveguide element part 220 which are formed extending in the longitudinal direction; a first insulating base stacked on the first waveguide element part 210 and adhered to the conductive member 900; a power supply part 230 which electrically connects the first waveguide element part 210 and the second waveguide element part 220; and a short-circuiting part 240 which forms an electrical connection. The inductor pattern L is formed by the first waveguide element part 210, the short-circuiting part 240, the second waveguide element part 220, and the power supply part 230.
[Problem to be Solved]
To provide an RF tag antenna capable of improving readability and a method of manufacturing the same, and an RF tag.
[Solution]
An RF tag antenna 10 according to an embodiment includes a first insulating substrate 40 having a first principal surface and a second principal surface, a first waveguide device 20 provided on the first principal surface, a second waveguide device 30 provided on the second principal surface, a power feeding part 50 electrically connected to the second waveguide device 30 at one end thereof, and a short-circuit part 60 electrically connected to the first waveguide device 20 at one end thereof and to the second waveguide device 30 at another end thereof, the first insulating substrate 40, the first waveguide device 20, the second waveguide device 30, the power feeding part 50 and the short-circuit part 60 form a plate-shaped inverted-F antenna that receives a radio wave transmitted from a reader, and an inductor pattern L formed by the first waveguide device 20, the short-circuit part 60, the second waveguide device 30 and the power feeding part 50 and a capacitor 93 formed by the first waveguide device 20, the second waveguide device 30 and the first insulating substrate 40 form a resonant circuit that resonates in a frequency band of the radio wave.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
43.
BOOSTER ANTENNA, COMMUNICATION IC UNIT EQUIPPED WITH BOOSTER ANTENNA, AND COMMUNICATION IC UNIT EQUIPPED WITH BOOSTER ANTENNA HAVING ATTACHED CONDUCTOR
[Problem] To provide a booster antenna that exhibits high communication performance when attached to a conductor, a communication IC unit equipped with a booster antenna, and a communication IC unit equipped with a booster antenna having an attached conductor. [Solution] A booster antenna 1 according to the present invention is provided with: a coil 20 that is wound less than one turn and that is formed of an upper-surface-side conductor 21 attached to an upper surface side of a substrate 10, a lower-surface-side conductor 22 attached to a lower surface side of the substrate, and a connection conductor 23 attached to an interior or a lateral surface of the substrate to electrically connect an end section of the upper-surface-side conductor and an end section of the lower-surface-side conductor; and an installation section 30 for installing a communication IC unit 50 equipped with an antenna on the upper surface side of the substrate. When the lower-surface-side conductor and a conductor are electrically contacted and connected, a conductor 100 functions as an antenna.
H01Q 19/02 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic Details
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H04B 5/02 - Near-field transmission systems, e.g. inductive loop type using transceiver
44.
ANTENNA-MOUNTED COMMUNICATION IC UNIT AND ANTENNA-MOUNTED COMMUNICATION IC UNIT EQUIPPED WITH CONDUCTOR
[Problem] To provide an antenna-mounted communication IC unit which exhibits high communication performance when attached to a conductor, and an antenna-mounted communication IC unit equipped with a conductor. [Solution] Provided is an antenna-mounted communication IC chip 1 is equipped with at least an antenna unit 20 formed by stacking substrates 31 on which coils 32 are formed, and an IC chip 10 connected to the antenna unit, wherein the antenna unit is equipped with a main element 30 formed by connecting multiple coils in series such that the directions in which they generate magnetic flux coincide, and an auxiliary element comprising a coil 41 having an open section 42 and having less than one turn, and the main element and the auxiliary element are electromagnetically coupled. By connecting the main element and the auxiliary element such that the directions in which they generate magnetic flux coincide, the entire conductor 50 can be made to function as an antenna.
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 19/02 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic Details
H04B 5/02 - Near-field transmission systems, e.g. inductive loop type using transceiver
45.
RF tag antenna and method for manufacturing same, and RF tag
[Problem to be Solved]
To provide an RF tag antenna capable of improving readability and a method of manufacturing the same, and an RF tag.
[Solution]
An RF tag antenna 10 according to an embodiment includes a first insulating substrate 40 having a first principal surface and a second principal surface, a first waveguide device 20 provided on the first principal surface, a second waveguide device 30 provided on the second principal surface, a power feeding part 50 electrically connected to the second waveguide device 30 at one end thereof, and a short-circuit part 60 electrically connected to the first waveguide device 20 at one end thereof and to the second waveguide device 30 at another end thereof, the first insulating substrate 40, the first waveguide device 20, the second waveguide device 30, the power feeding part 50 and the short-circuit part 60 form a plate-shaped inverted-F antenna that receives a radio wave transmitted from a reader, and an inductor pattern L formed by the first waveguide device 20, the short-circuit part 60, the second waveguide device 30 and the power feeding part 50 and a capacitor 93 formed by the first waveguide device 20, the second waveguide device 30 and the first insulating substrate 40 form a resonant circuit that resonates in a frequency band of the radio wave.
Provided is an RF tag that has a high communication performance and, with respect to a member constituted by a conductor having a void internally, can be mounted in the void. An RF tag 1 of the present invention can be mounted in a void 101 of a conductor-constituted member 100 having said void internally. The RF tag is equipped at least with a free-space antenna 10, a resonance circuit 20, an IC chip 30, a closed-space antenna 40, and a substrate 50 that supports the closed-space antenna. At least a portion of the free-space antenna is exposed from the void to the outside. The substrate supports the closed-space antenna without coming into contact with the inner face of the conductor-constituted member. A capacitor part C2 is formed by the closed-space antenna, the substrate, and the conductor-constituted member. As a result, the closed-space antenna and the conductor-constituted member are electrically connected, such that the conductor-constituted member and the IC chip, which is connected to the closed-space antenna, are electrically connected, and the entire conductor-constituted member can be used as an antenna.
Provided are an RF tag attachment capable of improving the versatility and communication performance of an RF tag having a planar inverted-F antenna, and an RF tag using said attachment. An attachment 1 used on an RF tag body is provided with an IC chip 80 and an RF tag antenna 10, in which a planar inverted-F antenna is formed from a first insulating substrate 40, first and second waveguide elements 20 and 30, a power feeding part 50, and a short-circuit part 60, and a resonance circuit is formed from an inductor pattern L and a capacitor 92. The inductor pattern is formed from the waveguide elements, the short-circuit part, and the power feeding part. The capacitor is formed from the waveguide elements and the first insulating substrate. The resonance circuit has a resonance frequency set in consideration of the inductance of the inductor pattern, the capacitance of the capacitor, and the equivalent capacity of the inside of the IC chip. The attachment 1 is made from a conductor equipped with a tag attaching part 2, which comes into contact and is electrically connected with one of the waveguide elements, and an extension part 3, extends from the tag attaching part.
Provided is a waveguide that enables communication even when a conductor is present between a reader-writer and an RF tag. The waveguide according to the present invention is a waveguide 10 used when a shielding conductor 102 that shields electromagnetic waves W is present between a reader-writer 100 and an RF tag 101, wherein the waveguide is provided with a first waveguide element 20 and a second waveguide element 30 that each have electrical lengths of λ/4, λ being the wavelength of the electromagnetic waves, and a transmission path 40 in which one end of each of the first waveguide element and the second waveguide element are connected to each other. The waveguide is inserted into a through-hole 102a in the shielding conductor, and the first waveguide element and the second waveguide element are disposed in two spaces set off by the shielding conductor. Electromagnetic waves sent from the reader-writer are received by the first waveguide element and emitted by the second waveguide element, thereby preventing the conventional occurrence of all of the electromagnetic waves being reflected by the shielding conductor, and enabling communication between the reader-writer and the RF tag.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01P 5/02 - Coupling devices of the waveguide type with invariable factor of coupling
H01Q 21/10 - Collinear arrangements of substantially straight elongated conductive units
H04B 5/02 - Near-field transmission systems, e.g. inductive loop type using transceiver
49.
RF TAG ANTENNA AND METHOD FOR MANUFACTURING SAME, AND RF TAG
[Problem] To provide an RF tag antenna in which it is possible to improve the reading performance, a method for manufacturing the RF tag antenna, and an RF tag. [Solution] An RF tag antenna 10 according to an embodiment is provided with a first insulating substrate 40 having a first main surface and a second main surface, a first waveguide element 20 provided on the first main surface, a second waveguide element 30 provided on the second main surface, a power feed unit 50 having one end electrically connected to the second waveguide element 30, and a short-circuit unit 60 having one end electrically connected to the first waveguide element 20 and the other end electrically connected to the second waveguide element 30. The first insulating substrate 40, the first waveguide element 20, the second waveguide element 30, the power feed unit 50, and the short-circuit unit 60 constitute a plate-shaped inverse F antenna for receiving radio waves transmitted from a reading device. An indictor pattern L formed by the first waveguide element 20, the short-circuit unit 60, the second waveguide element 30, and the power feed unit 50 and a capacitor 93 formed by the first waveguide element 20, the second waveguide element 30, and the first insulating substrate 40 constitute a resonance circuit which resonates in the frequency band of the radio waves.
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
patents
