WO2017014078A1 - Wireless communication device and laundry item equipped with wireless communication device - Google Patents

Wireless communication device and laundry item equipped with wireless communication device Download PDF

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Publication number
WO2017014078A1
WO2017014078A1 PCT/JP2016/070321 JP2016070321W WO2017014078A1 WO 2017014078 A1 WO2017014078 A1 WO 2017014078A1 JP 2016070321 W JP2016070321 W JP 2016070321W WO 2017014078 A1 WO2017014078 A1 WO 2017014078A1
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WO
WIPO (PCT)
Prior art keywords
pattern
wireless communication
communication device
radiation pattern
connection
Prior art date
Application number
PCT/JP2016/070321
Other languages
French (fr)
Japanese (ja)
Inventor
加藤　登
Original Assignee
株式会社村田製作所
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Publication date
Application filed by 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to JP2017529552A priority Critical patent/JP6319518B2/en
Publication of WO2017014078A1 publication Critical patent/WO2017014078A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/02—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—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
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—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

Definitions

  • the present invention relates to a wireless communication device and a laundry article with a wireless communication device.
  • a wireless communication device for example, an RFID (Radio Frequency IDentifier) tag can be used.
  • the RFID tag is an example of a wireless communication device and is not limited to this.
  • an RFID information system that communicates predetermined information using an electromagnetic field between an RFID tag attached to an article and a reader / writer and transmits predetermined information is used as an article information management system.
  • the RFID tag includes an RFIC element that stores predetermined information and processes an RF signal, and an antenna element that performs transmission and reception. RFID tags are used by being attached to various articles.
  • an RFID tag is attached to each linen such as clothes and sheets, and ID information is read from each RFID tag using a reader / writer, and each linen is collected, washed, heat-treated and delivered.
  • a system for managing the above has been introduced.
  • the RFID tag is attached to linens by covering with a cloth label and thermocompression bonding or sewing. This linen is severely squeezed especially in the washing process. Therefore, there has been a problem that stress is easily applied to the connecting portion between the antenna element of the RFID tag attached to the linens and the RFIC element and is easily damaged.
  • An object of the present invention is to suppress the occurrence of poor connection between an RFIC element and an antenna element constituting an RFID tag that is an example of a wireless communication device, and is inexpensive and relatively small, without impairing mounting properties and high reliability. It is to provide a wireless communication device such as an RFID tag.
  • a wireless communication device includes an RFIC element having first and second input / output terminals, An antenna element connected to the first and second input / output terminals; With The antenna element is A radiation portion including a first radiation pattern and a second radiation pattern; A connection pattern that connects the first radiation pattern and the second radiation pattern, and a first and a second that branch from the two distant locations of the connection pattern, respectively, and that are connected to the first and second input / output terminals.
  • a matching portion including first and second connection patterns reaching two ends; Have The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. Have a folded portion whose extending direction is reversed.
  • the first and second connection patterns branched from the connection pattern and connected to the RFIC element have the folded portion where the extending direction is reversed.
  • FIG. 1 is a plan view showing a configuration of an RFID tag according to Embodiment 1.
  • FIG. It is sectional drawing seen from the AA direction of FIG. 1A.
  • FIG. 3 is an overview diagram illustrating a state in which the RFID tag according to Embodiment 1 is bent by stress.
  • FIG. 2A is a schematic diagram illustrating a state where the RFID tag according to Embodiment 1 is bent due to a stress accompanied by torsional deformation.
  • 4 is a plan view showing a configuration of an antenna element that constitutes the RFID tag according to Embodiment 1.
  • FIG. FIG. 2 is an equivalent circuit diagram of the RFID tag in FIG. 1. It is the schematic which shows the structure of the RFIC element which comprises the RFID tag of FIG. 4A.
  • FIG. 6 is a plan view illustrating a configuration of an RFID tag according to Embodiment 2.
  • 6 is a plan view showing a configuration of an RFID tag according to Embodiment 3.
  • FIG. It is sectional drawing seen from CC direction of FIG. 7A.
  • 6 is a plan view showing a configuration of an antenna element that constitutes an RFID tag according to Embodiment 3.
  • FIG. It is a top view which shows the structure of the RFID tag 10c which concerns on Embodiment 4.
  • FIG. 10 is a plan view showing a configuration of an RFID tag 10d according to a modification of the fourth embodiment.
  • a wireless communication device includes an RFIC element having first and second input / output terminals; An antenna element connected to the first and second input / output terminals; With The antenna element is A radiation portion including a first radiation pattern and a second radiation pattern; A connection pattern that connects the first radiation pattern and the second radiation pattern, and a first and a second that branch from the two distant locations of the connection pattern, respectively, and that are connected to the first and second input / output terminals.
  • a matching portion including first and second connection patterns reaching two ends; Have The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. Have a folded portion whose extending direction is reversed.
  • the RFID tag is an example of a wireless communication device and is not limited to this.
  • the first and second connection patterns branched from the connection pattern and connected to the RFIC element have the folded portions that are reversed in the extending direction.
  • the stress stops at the connection pattern and hardly reaches the connection pattern.
  • the stress is absorbed by the deformation of the folded portion of the connection pattern.
  • the stress hardly reaches the first and second end portions where the RFIC element is connected, and the occurrence of damage at the connection portion between the RFIC element and the antenna element can be suppressed.
  • connection pattern may have a line width wider than a line width of the first radiation pattern or the second radiation pattern.
  • the deformation of the connected pattern can be suppressed even when stress is applied.
  • the antenna element in the wireless communication device according to the third aspect, may be made of an elastic material.
  • the antenna element since the antenna element has elasticity, the occurrence of damage can be suppressed by elastic deformation when subjected to stress.
  • the antenna element may be formed of a metal film or a metal body.
  • the antenna element can be made elastic by being made of a metal film or metal body, and can be prevented from being damaged by elastic deformation when subjected to stress as described above. .
  • the antenna element may be formed of a continuous metal body.
  • the antenna element can integrally exhibit elasticity by being composed of a continuous metal body, and resistance to stress can be improved.
  • the first radiation pattern and the second radiation pattern are meandered extending along an extending direction of the connection pattern. It may be.
  • the elasticity can be improved by making the first radiation pattern and the second radiation pattern into a meander shape.
  • a wireless communication device is the wireless communication device according to any one of the first to sixth aspects, wherein the line widths of the open ends of the first radiation pattern and the second radiation pattern are larger than the line widths of other portions. May be thicker.
  • the strength of the open end against twisting or bending can be increased by increasing the line width of the open end.
  • a wireless communication device is the RFIC package according to any one of the first to seventh aspects, wherein the RFIC element includes an RFIC chip and a matching circuit connected to the RFIC chip. And A resonance frequency corresponding to a communication frequency may be defined by the matching circuit and the matching unit.
  • connection pattern that connects the first radiation pattern and the second radiation pattern, which functions as a part of the matching portion is provided outside. Accordingly, the RFIC element can be connected via the connection pattern branched from the connection pattern without directly connecting the RFIC element to the first radiation pattern and the second radiation pattern. Thus, although normal stress is applied to the connection pattern, it is difficult to transmit to the connection pattern branched from the connection pattern, and damage to the connection portion between the RFIC element and the connection pattern is less likely to occur.
  • a wireless communication device is a member that is less likely to expand and contract than the first radiation pattern and the second radiation pattern in any of the first to eighth aspects, and is at least one of the antenna elements. You may further provide the member which covers a part.
  • the first radiation pattern and the second radiation pattern when the antenna element is contracted by attaching the member that is less likely to expand and contract than the first radiation pattern and the second radiation pattern to at least a part of the antenna element. It can suppress that a part of radiation pattern contacts. Moreover, it can suppress that a connection pattern, a 1st radiation pattern, and a 2nd radiation pattern contact. As a result, it is possible to suppress a decrease in the electrical length of the antenna due to contact between the connection pattern, the first radiation pattern, and the second radiation pattern, thereby suppressing a decrease in gain.
  • the laundry article with a wireless communication device is a laundry article that receives washing or cleaning, A wireless communication device attached to the laundry article, An RFIC element having first and second input / output terminals; An antenna element connected to the first and second input / output terminals, A radiation part including a first radiation pattern, a second radiation pattern, and a connection pattern that connects the first radiation pattern and the second radiation pattern; First and second connection patterns that branch from the two distant locations of the connection pattern and reach the first and second ends connected to the first and second input / output terminals, and the connection pattern, A formed alignment portion; and An antenna element having With The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. A wireless communication device having a folded portion whose extending direction is reversed to Is provided.
  • collection, washing, heat treatment, delivery, etc. can be managed by the wireless communication device.
  • the laundry article with a wireless communication device according to an eleventh aspect may be attached to the laundry article by attaching the wireless communication device to a cloth in the tenth aspect.
  • the wireless communication device freely expands and contracts or twists according to the stress in the fabric.
  • the RFID tag is an example of a wireless communication device and is not limited to this.
  • substantially the same members are denoted by the same reference numerals.
  • FIG. 1A is a plan view showing the configuration of the RFID tag 10 according to Embodiment 1.
  • FIG. 1B is a cross-sectional view as seen from the AA direction in FIG. 1A.
  • FIG. 2A is a schematic perspective view showing a state in which the RFID tag 10 according to Embodiment 1 is bent by stress.
  • FIG. 2B is a schematic perspective view showing a state where the RFID tag 10 according to the first embodiment is bent due to the stress accompanied by torsional deformation in FIG. 2A.
  • FIG. 3 is a plan view showing the configuration of the antenna element 7 constituting the RFID tag 10 according to the first embodiment.
  • the RFID tag 10 is an RFID tag for managing an article that is deformed by stress.
  • the RFID tag 10 includes an RFIC element 1 having first and second input / output terminals, and an antenna element 7 connected to the first and second input / output terminals 13a and 13b.
  • the antenna element 7 includes a radiation portion including a first radiation pattern 2a and a second radiation pattern 2b, a connection pattern 3 that connects the first radiation pattern 2a and the second radiation pattern 2b, and a connection pattern 3 each other.
  • First and second connection patterns 4a and 4b branched from two distant locations 8a and 8b, respectively, and connected to the first and second input / output terminals to reach the first and second end portions 5a and 5b. And a matching portion.
  • the matching portion is a loop-shaped matching portion formed by the first connection pattern 4 a, the second connection pattern 4 b, and the connection pattern 3. That is, the RFID tag 10 has a configuration in which a loop-shaped matching portion is provided between the two radiation patterns 2a and 2b constituting the dipole antenna and the RFIC element 1. Further, the first connection pattern 4a has a folded portion 9a whose direction of extension is reversed between the connection pattern 3 and the first end 5a, and the second connection pattern 4b is the connection pattern 3 and the second end. 5b has a folded portion 9b whose extending direction is reversed.
  • the first and second connection patterns 4a and 4b branched from the connection pattern 3 and connected to the RFIC element 1 have folded portions 9a and 9b in which the extending direction is reversed.
  • the stress stops at the connection pattern 3 and the first and second connection patterns 4 a and 4 b are not easily stressed, and the RFIC element 1 and the antenna element 7 It is possible to suppress the occurrence of damage at the connection points. Further, even when a stress accompanied by a larger torsional deformation or the like as shown in FIG. 2B is received, the stress is absorbed by the folded portions 9a and 9b of the first and second connection patterns 4a and 4b.
  • the article to which the RFID tag 10 is attached may be any article that deforms when stress is applied, such as leather products such as bags and shoes, and linen items such as clothes, sheets, and towels. It may be a laundry article that includes a fabric product that receives it.
  • FIG. 4A is an equivalent circuit diagram of the RFID tag 10 of FIG.
  • FIG. 4B is a schematic diagram showing the configuration of the RFIC element 1 constituting the RFID tag 10 of FIG. 4A.
  • the RFID tag 10 includes a dipole antenna element 7 having a first radiation pattern 2a and a second radiation pattern 2b. Moreover, it has the connection pattern 3 which connects the 1st radiation pattern 2a and the 2nd radiation pattern 2b.
  • the RFID tag 10 defines a resonance frequency corresponding to a communication frequency by a matching circuit 12 in the RFIC element 1 and a matching portion including the connection pattern 3 and the first and second connection patterns 4a and 4b. Can do.
  • connection pattern 3 that connects the first radiation pattern 2 a and the second radiation pattern 2 b that functions as a part of the matching unit is provided outside.
  • the RFIC element 1 is connected to the RFIC element 1 via the first and second connection patterns 4a and 4b branched from the connection pattern 3 without directly connecting the RFIC element 1 to the first radiation pattern 2a and the second radiation pattern 2b.
  • the RFIC element 1 is configured as an RFIC package having an RFIC chip 11 for processing an RFID signal and a matching circuit 12 for mounting the RFIC chip 11.
  • the RFIC chip 11 may incorporate a memory circuit or a signal processing circuit and may be sealed with an epoxy resin sealing layer or the like.
  • the matching circuit 12 may be formed in a multilayer substrate using ceramics such as LTCC.
  • the substrate on which the RFIC chip 11 is mounted may be a rigid resin substrate such as epoxy or a flexible resin substrate such as PI, but is preferably a ceramic substrate as described above.
  • the matching circuit 12 may configure a capacitor as shown in FIG. 4B, for example.
  • two input / output terminals 13 a and 13 b are provided on the lower surface of the RFIC element 1.
  • the input / output terminals 13a and 13b are respectively connected to the first end 5a and the second end 5b by a conductive bonding material (eg, Ag) not shown.
  • the resonance circuit may be configured by the matching circuit 12 and the matching portion including the connection pattern 3 and the first and second connection patterns 4a and 4b, and the resonance frequency corresponding to the communication frequency may be defined.
  • This resonant circuit resonates at a communication frequency, for example, a UHF band frequency.
  • the resonance frequency for example, a 13 MHz band in the HF band RFID system, a 900 MHz band in the UHF band RFID system, and the like can be used.
  • the UHF band RFID system since the UHF band RFID system has a relatively long communication distance, it can read a plurality of tags at once.
  • the antenna element 7 has a radiation part and a matching part.
  • the radiation part includes a first radiation pattern 2a and a second radiation pattern 2b.
  • the matching portion includes a connection pattern 3 and first and second connection patterns 4a and 4b.
  • the antenna element 7 may be made of a metal film or a metal body. Since the antenna element 7 is made of a metal film or metal body, elasticity can be exhibited, and the occurrence of damage can be suppressed by elastic deformation when subjected to stress as described above. Furthermore, the antenna element 7 may be comprised with the continuous metal body. By being composed of a continuous metal body, the antenna element 7 can exhibit elasticity integrally, and resistance to stress can be improved. Furthermore, the antenna element 7 may be made of a material having conductivity and elasticity, such as a stainless material (for example, SUS304), a copper plate, an aluminum plate, a nickel plate, a titanium plate, or the like. In consideration of corrosion resistance, stainless steel is preferable.
  • a stainless material for example, SUS304
  • a copper plate for example, an aluminum plate, a nickel plate, a titanium plate, or the like. In consideration of corrosion resistance, stainless steel is preferable.
  • the antenna element 7 may be constituted by, for example, a surface of a stainless material exhibiting shape elasticity and subjected to nickel tin plating. Since the antenna element 7 has elasticity, the occurrence of damage can be suppressed by elastic deformation when subjected to stress during washing or the like.
  • the elasticity of the antenna element 7 is more specifically shape elasticity. Accordingly, the shape of the antenna element 7 changes depending on the stress, and when the stress is released, the original state is restored. That is, the antenna element 7 also has shape retention.
  • the antenna element 7 does not have a substrate such as a support film that supports the first radiation pattern 2a and the second radiation pattern 2b. Thereby, compared with the case where a base material such as a normal support film such as PET or PI is used, since the base material is not used, good permeability with respect to moisture and air can be obtained. Moreover, the drying property and chemical resistance of linens are not greatly impaired. Furthermore, since the protection by the mold resin is not necessarily required, the thickness of the RFID tag 10 is not easily increased by the mold resin, and the wearing feeling of the clothes is not easily inhibited.
  • the first radiation pattern 2a and the second radiation pattern 2b may have a meander shape extending along the extending direction (x direction) of the connection pattern 3 as shown in FIG. 1A.
  • the elasticity can be improved by using a meander shape.
  • the meander shape may be constituted by, for example, a long side and a short side orthogonal to each other.
  • the long side that draws the meander pattern extends in the y direction.
  • the short side that draws the meander pattern is a side that extends in a direction away from the connection pattern 3 (x direction). That is, each of the first radiation pattern 2a and the second radiation pattern 2b has a meander pattern extending in a direction away from the connection pattern 3 (x direction).
  • the line widths of the open ends 16a and 16b of the first radiation pattern 2a and the second radiation pattern 2b may be larger than the line widths of other portions as will be described later (FIGS. 7 and 8).
  • the antenna element 7 has the connection pattern 3 that connects the first radiation pattern 2a and the second radiation pattern 2b. Therefore, although the stress that is normally applied is applied to the connection pattern 3, it is difficult to transmit to the first and second connection patterns 4a and 4b branched from the connection pattern 3, and the RFIC element 1 and the first and second connection patterns 4a and 4b. Damage to the connecting part is difficult to occur.
  • connection pattern 3 may have a line width wider than the line width of the first radiation pattern 2a or the second radiation pattern 2b, for example, approximately three times the line width.
  • connection pattern 3 has a line width wider than that of the radiating portion, greater rigidity can be obtained. Accordingly, deformation of the connection pattern 3 can be suppressed even when subjected to stress.
  • the antenna element 7 branches from the two places 8a and 8b apart from the connection pattern 3 in the y direction and is connected to the first and second input / output terminals 13a and 13b of the RFIC element 1 and the first end 5a and the second end.
  • the first and second connection patterns 4a and 4b extend to the two end portions 5b.
  • the RFIC element 1 is mounted on the antenna element 7 so as to straddle the first and second end portions 5a and 5b.
  • the two input / output terminals 13a and 13b of the RFIC element 1 are connected to the first end portion 5a and the second end portion 5b, respectively, by a conductive bonding material (not shown) (material is Ag or the like).
  • first and second connection patterns 4a and 4b have folded portions 9a and 9b whose extending directions are reversed.
  • the folded portions 9a and 9b are portions where the extending direction is reversed.
  • the shape of the folded portions 9a and 9b is, for example, a loop shape. When the curvature is increased, it becomes U-shaped. Specifically, the extending direction of the first and second connection patterns 4a and 4b from the branch points 8a and 8b of the connection pattern 3 to the first end 5a or the second end 5b is reversed.
  • the shape of the folded portions 9a and 9b is not limited to a linear shape as shown in FIG. 1A, and may be a curved shape.
  • the first and second connection patterns 4a and 4b have a portion a that extends in the y direction from the branch portions 8a and 8b, and then extends slightly in the x direction, and then the extending direction is There is a portion c that is inverted and extends in the ⁇ y direction, and reaches the first and second end portions 5a and 5b.
  • a is greater than b.
  • the length of the portion c extending in the ⁇ y direction with respect to the portion a extending in the y direction is preferably in a range from 1 ⁇ 4 to 3 ⁇ 4 of the portion a.
  • the stress is easily absorbed by the deformation of the folded portions 9a and 9b.
  • the length of the portion c is less than 1 ⁇ 4, the stress may not be sufficiently absorbed by the folded portions 9a and 9b, or the first and second end portions 5a and 5b may be affected by the stress.
  • the RFIC element 1 may come into contact with the connection pattern 3 when the folded portions 9a and 9b are deformed by stress.
  • the RFID tag 10 has the connection pattern 3 and the first connection pattern 4a and the second connection pattern 4b are provided with folded portions 9a and 9b whose extending directions are reversed.
  • the first radiation pattern 2a and the second radiation pattern 2b have shape elasticity, do not use a supporting base material, and do not have a fixing interface of different materials. Therefore, the stress in the washing process is less likely to concentrate on the first radiation pattern 2a and the second radiation pattern 2b, and disconnections in the first radiation pattern 2a and the second radiation pattern 2b are less likely to occur.
  • a method for manufacturing the RFID tag 10 will be described below.
  • a metal plate is prepared.
  • the metal plate is punched into the shape of the antenna element 7 by a punch.
  • the RFIC element 1 is mounted between the end portions 5 a and 5 b of the antenna element 7 to obtain the RFID tag 10.
  • the shape of the antenna element 7 is directly punched from the metal plate.
  • the manufacturing method of the antenna element 7 is not limited to the integral punching method from the metal plate.
  • the antenna element 7 may be formed by producing each part of the antenna element 7 and joining the parts by welding or soldering.
  • the case of punching from a metal plate is not limited to the above example. For example, an uncut portion is left between the edge of the metal plate material and the antenna element 7 to connect to the RFIC element 1. It may be used as a support for the occasion.
  • the present invention is not limited to punching one antenna element 7 from one metal plate material, and a plurality of antenna elements 7 may be punched from one metal plate material.
  • FIG. 5 is a schematic view showing a laundry article 20 with an RFID tag in which the RFID tag 10 according to the first embodiment is attached to a garment 22.
  • the RFID tag 10 is sealed with a patch (not shown) or the like in a state of being arranged on a cloth brand tag.
  • the RFID tag 10 is freely expanded and contracted or twisted according to stress in the space in the brand tag.
  • the brand tag in which the RFID tag 10 is sealed is sewn to the neck of the shirt 22 so that the RFIC element 1 hits the back of the shirt 22 (see FIG. 5). This prevents the touch of the RFIC element 1 from being transmitted to the body.
  • the RFID tag 10 is a dipole type RFID tag, and includes an antenna element 7 and an RFIC element 1, and corresponds to a communication frequency of, for example, 900 MHz band, that is, UHF band.
  • the laundry article is not limited to the above-described clothing, but includes cloth products that receive stress during washing and cleaning such as linens such as sheets and towels. According to the RFID tag-equipped laundry article 20, the RFID tag 10 can manage collection, washing, heat treatment, delivery, and the like.
  • FIG. 6A is a plan view showing the configuration of the RFID tag 10a according to the second embodiment.
  • 6B is a cross-sectional view seen from the BB direction of FIG. 6A.
  • This RFID tag 10a is different from the RFID tag according to Embodiment 1 in that the connection pattern 3 has a line width wider than that of the first radiation pattern 2a or the second radiation pattern 2b.
  • the connection pattern 3 has a line width wider than that of the radiating portion, greater rigidity can be obtained. Accordingly, deformation of the connection pattern 3 can be suppressed even when subjected to stress.
  • FIG. 7A is a plan view showing a configuration of an RFID tag 10b according to Embodiment 3.
  • FIG. 7B is a cross-sectional view seen from the CC direction of FIG. 7A.
  • FIG. 8 is a plan view showing the configuration of the antenna element 7a constituting the RFID tag 10b according to the third embodiment.
  • the RFID tag 10b further has a larger line width at the open ends 16a and 16b of the first and second radiation patterns 2a and 2b than the line width of other portions. Is different. For example, for both the first radiation pattern 2a and the second radiation pattern 2b, the line widths of the open ends 16a and 16b are approximately three times the line widths of the other portions.
  • a wide portion is formed at the open end 16a of the first radiation pattern 2a, and a wide portion is formed at the open end 16b of the second radiation pattern 2b.
  • the strength of the connection pattern 3 and the open ends 16a and 16b against twisting and bending can be increased.
  • first radiation pattern 2a and the second radiation pattern 2b are both connected to the connection pattern 3 by the long sides that draw the meander pattern. Similarly, it is the long side that draws the meander pattern that reaches each of the open ends 16a and 16b.
  • the bending strength of the first radiation pattern 2a and the second radiation pattern 2b at the root portions of the open ends 16a and 16b is increased, and the meander-shaped first radiation pattern 2a and the second radiation pattern 2b having a relatively narrow line width. Bears bending and twisting, and the fear that the first radiation pattern 2a and the second radiation pattern 2b are disconnected in the washing process can be reduced.
  • the line width of the connection pattern 3 is widened, and wide portions are provided at the open end 16a of the first radiation pattern 2a and the open end 16b of the second radiation pattern 2b.
  • the meander pattern of the first radiation pattern 2a and the second radiation pattern 2b is connected to the connecting pattern 3 and each of the wide portions of the open ends 16a and 16b by the short side of the meander pattern.
  • FIG. 9A is a plan view showing the configuration of the RFID tag 10c according to the fourth embodiment.
  • FIG. 9B is a plan view showing a configuration of an RFID tag 10d according to a modification of the fourth embodiment.
  • the RFID tags 10c and 10d are flexible compared to the RFID tag according to the first embodiment, but members that are less likely to expand and contract than the first radiation pattern 2a and the second radiation pattern 2b, such as cloths 18 and 18a, are used. The difference is that the antenna element 7 is attached to the entire surface (FIG. 9A) or partially (FIG. 9B). In addition, attachment of the cloths 18 and 18a to the antenna element 7 is not limited to the case of attaching, but may be sewn or hot melt (lining).
  • the cloths 18 and 18a By attaching the cloths 18 and 18a to the antenna element 7, when the antenna element 7 is contracted, it is possible to prevent a part of the first radiation pattern 2a and the second radiation pattern 2b from contacting each other. Moreover, it can suppress that the connection pattern 3 and the 1st radiation pattern 2a and the 2nd radiation pattern 2b contact. As a result, it is possible to suppress the electrical length of the antenna from being shortened due to the contact between the connection pattern 3 and the first radiation pattern 2a and the second radiation pattern 2b, so that a decrease in gain can be suppressed.
  • the fabrics 18 and 18a may be either woven fabric or non-woven fabric. Moreover, it is preferable that the cloths 18 and 18a are provided so as to sandwich the loop-shaped matching portion formed by the first connection pattern 4a, the second connection pattern 4b, and the connection pattern 3 from both sides.
  • the connection pattern for connecting the first radiation pattern and the second radiation pattern and the connection pattern are branched from two positions separated from each other, and connected to the input / output terminal of the RFIC element. And first and second connection patterns reaching the first and second end portions. Therefore, although stress applied during washing or the like is applied to the connection pattern, it is difficult to transmit to the first and second connection patterns branched from the connection pattern, and the connection portion between the RFIC element and the first and second connection patterns is damaged. Is unlikely to occur. Furthermore, the first and second connection patterns have folded portions where the extending direction is reversed.
  • the present invention is useful as a wireless communication device that is attached to an article that is subjected to stress accompanied by a larger torsional deformation.

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Abstract

A wireless communication device equipped with an RFIC element having first and second input/output terminals, and further equipped with an antenna element connected to the first and second input/output terminals, wherein the antenna element has: a radiation section that includes a first radiation pattern and a second radiation pattern; and a matching section that includes a linking pattern for linking the first and second radiation patterns, and also includes first and second connecting patterns that bifurcate from two separate locations in the linking pattern and extend to first and second end sections that connect to the first and second input/output terminals. Furthermore, the first connecting pattern has a folded section in which the direction of extension reverses between the linking pattern and the first end section, and the second connecting pattern has a folded section in which the direction of extension reverses between the linking pattern and the second end section.

Description

無線通信デバイス及び無線通信デバイス付きランドリー物品Wireless communication device and laundry article with wireless communication device
　本発明は、無線通信デバイス及び無線通信デバイス付きランドリー物品に関する。無線通信デバイスとしては、例えば、ＲＦＩＤ(Radio Frequency IDentifier)タグを使用することができる。なお、ＲＦＩＤタグは、無線通信デバイスの一例であって、これに限定されるものではない。 The present invention relates to a wireless communication device and a laundry article with a wireless communication device. As the wireless communication device, for example, an RFID (Radio Frequency IDentifier) tag can be used. The RFID tag is an example of a wireless communication device and is not limited to this.
　近年、物品の情報管理システムとして、物品に付されたＲＦＩＤタグと、リーダライタと、の間で電磁界を利用した非接触方式で通信し、所定の情報を伝達するＲＦＩＤシステムが利用されている。このＲＦＩＤタグは、所定の情報を記憶し、ＲＦ信号を処理するＲＦＩＣ素子と、送受信を行うアンテナ素子とを備える。ＲＦＩＤタグは、種々の物品に付されて使用される。 2. Description of the Related Art In recent years, an RFID information system that communicates predetermined information using an electromagnetic field between an RFID tag attached to an article and a reader / writer and transmits predetermined information is used as an article information management system. . The RFID tag includes an RFIC element that stores predetermined information and processes an RF signal, and an antenna element that performs transmission and reception. RFID tags are used by being attached to various articles.
　例えば、リネン業界では、衣類やシーツ等の各リネン類にＲＦＩＤタグを付しておき、リーダライタを用いて各々のＲＦＩＤタグからＩＤ情報を読み取って、各リネン類の回収、洗濯、熱処理、納品等を管理するシステムが導入されている。ＲＦＩＤタグは、布ラベルで覆って熱圧着又は縫製することでリネン類に取り付けられている。このリネン類は、特にその洗濯工程において激しく揉まれる。そのため、リネン類に付されたＲＦＩＤタグのアンテナ素子とＲＦＩＣ素子との接続部に応力が加わって破損しやすくなるという問題があった。 For example, in the linen industry, an RFID tag is attached to each linen such as clothes and sheets, and ID information is read from each RFID tag using a reader / writer, and each linen is collected, washed, heat-treated and delivered. A system for managing the above has been introduced. The RFID tag is attached to linens by covering with a cloth label and thermocompression bonding or sewing. This linen is severely squeezed especially in the washing process. Therefore, there has been a problem that stress is easily applied to the connecting portion between the antenna element of the RFID tag attached to the linens and the RFIC element and is easily damaged.
特開２０１０－１７６４５１号公報JP 2010-176451 A 特開２０１３－４７８８０号公報JP 2013-47880 A
　上記の問題に対して、例えば、ＲＦＩＣ素子とアンテナ素子とを可撓性の樹脂で挟み込んだ構造がある（例えば、特許文献１及び２参照。）。
　しかし、これらの構造では、ＲＦＩＤタグが高価になるとともに、各ＲＦＩＤタグが大型化してしまうためリネン類への装着性が損なわれてしまうという問題があった。 To solve the above problem, for example, there is a structure in which an RFIC element and an antenna element are sandwiched between flexible resins (see, for example, Patent Documents 1 and 2).
However, these structures have the problem that the RFID tag becomes expensive and the size of each RFID tag increases, so that the ability to attach to linens is impaired.
　本発明の目的は、無線通信デバイスの一例であるＲＦＩＤタグを構成するＲＦＩＣ素子とアンテナ素子との接続不良の発生を抑制できると共に、安価で比較的小さく装着性を損なうことなく、信頼性の高いＲＦＩＤタグ等の無線通信デバイスを提供することである。 An object of the present invention is to suppress the occurrence of poor connection between an RFIC element and an antenna element constituting an RFID tag that is an example of a wireless communication device, and is inexpensive and relatively small, without impairing mounting properties and high reliability. It is to provide a wireless communication device such as an RFID tag.
　本発明に係る無線通信デバイスは、第１及び第２の入出力端子を有するＲＦＩＣ素子と、
　前記第１及び第２の入出力端子に接続されたアンテナ素子と、
を備え、
　前記アンテナ素子は、
　　第１放射パターンと、第２放射パターンと、を含む放射部と、
　　前記第１放射パターンと前記第２放射パターンとを連接する連接パターンと、前記連接パターンの互いに離れた２箇所からそれぞれ分岐し、前記第１及び第２の入出力端子と接続する第１及び第２端部に至る第１及び第２接続パターンと、を含む整合部と、
を有し、
　前記第１接続パターンは、前記連接パターンと前記第１端部との間に延在方向が反転する折返し部分を有し、第２接続パターンは、前記連接パターンと前記第２端部との間に延在方向が反転する折返し部分を有する。 A wireless communication device according to the present invention includes an RFIC element having first and second input / output terminals,
An antenna element connected to the first and second input / output terminals;
With
The antenna element is
A radiation portion including a first radiation pattern and a second radiation pattern;
A connection pattern that connects the first radiation pattern and the second radiation pattern, and a first and a second that branch from the two distant locations of the connection pattern, respectively, and that are connected to the first and second input / output terminals. A matching portion including first and second connection patterns reaching two ends;
Have
The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. Have a folded portion whose extending direction is reversed.
　本発明に係る無線通信デバイスによれば、連接パターンから分岐し、ＲＦＩＣ素子と接続する第１及び第２接続パターンにおいて、延在方向の反転する折り返し部分を有する。これによって、ＲＦＩＣ素子とアンテナ素子との接続不良の発生を抑制できると共に、安価で比較的小さく装着性を損なうことなく、信頼性の高い無線通信デバイスを提供できる。 According to the wireless communication device according to the present invention, the first and second connection patterns branched from the connection pattern and connected to the RFIC element have the folded portion where the extending direction is reversed. As a result, it is possible to suppress the occurrence of poor connection between the RFIC element and the antenna element, and to provide a highly reliable wireless communication device that is inexpensive, relatively small, and does not impair mounting properties.
実施の形態１に係るＲＦＩＤタグの構成を示す平面図である。1 is a plan view showing a configuration of an RFID tag according to Embodiment 1. FIG. 図１ＡのＡ－Ａ方向から見た断面図である。It is sectional drawing seen from the AA direction of FIG. 1A. 実施の形態１に係るＲＦＩＤタグが応力によって撓んだ状態を示す概観図である。FIG. 3 is an overview diagram illustrating a state in which the RFID tag according to Embodiment 1 is bent by stress. 図２Ａに、さらにねじり変形を伴う応力によって実施の形態１に係るＲＦＩＤタグが撓んだ状態を示す概観図である。FIG. 2A is a schematic diagram illustrating a state where the RFID tag according to Embodiment 1 is bent due to a stress accompanied by torsional deformation. 実施の形態１に係るＲＦＩＤタグを構成するアンテナ素子の構成を示す平面図である。4 is a plan view showing a configuration of an antenna element that constitutes the RFID tag according to Embodiment 1. FIG. 図１のＲＦＩＤタグの等価回路図である。FIG. 2 is an equivalent circuit diagram of the RFID tag in FIG. 1. 図４ＡのＲＦＩＤタグを構成するＲＦＩＣ素子の構成を示す概略図である。It is the schematic which shows the structure of the RFIC element which comprises the RFID tag of FIG. 4A. 実施の形態１に係るＲＦＩＤタグを衣類に取り付けたＲＦＩＤタグ付きランドリー物品を示す概略図である。It is the schematic which shows the laundry article with an RFID tag which attached the RFID tag which concerns on Embodiment 1 to clothing. 実施の形態２に係るＲＦＩＤタグの構成を示す平面図である。6 is a plan view illustrating a configuration of an RFID tag according to Embodiment 2. FIG. 図６ＡのＢ－Ｂ方向から見た断面図である。It is sectional drawing seen from the BB direction of FIG. 6A. 実施の形態３に係るＲＦＩＤタグの構成を示す平面図である。6 is a plan view showing a configuration of an RFID tag according to Embodiment 3. FIG. 図７ＡのＣ－Ｃ方向から見た断面図である。It is sectional drawing seen from CC direction of FIG. 7A. 実施の形態３に係るＲＦＩＤタグを構成するアンテナ素子の構成を示す平面図である。6 is a plan view showing a configuration of an antenna element that constitutes an RFID tag according to Embodiment 3. FIG. 実施の形態４に係るＲＦＩＤタグ１０ｃの構成を示す平面図である。It is a top view which shows the structure of the RFID tag 10c which concerns on Embodiment 4. FIG. 実施の形態４の変形例に係るＲＦＩＤタグ１０ｄの構成を示す平面図である。10 is a plan view showing a configuration of an RFID tag 10d according to a modification of the fourth embodiment. FIG.
　第１の態様に係る無線通信デバイスは、第１及び第２の入出力端子を有するＲＦＩＣ素子と、
　前記第１及び第２の入出力端子に接続されたアンテナ素子と、
を備え、
　前記アンテナ素子は、
　　第１放射パターンと、第２放射パターンと、を含む放射部と、
　　前記第１放射パターンと前記第２放射パターンとを連接する連接パターンと、前記連接パターンの互いに離れた２箇所からそれぞれ分岐し、前記第１及び第２の入出力端子と接続する第１及び第２端部に至る第１及び第２接続パターンと、を含む整合部と、
を有し、
　前記第１接続パターンは、前記連接パターンと前記第１端部との間に延在方向が反転する折返し部分を有し、第２接続パターンは、前記連接パターンと前記第２端部との間に延在方向が反転する折返し部分を有する。 A wireless communication device according to a first aspect includes an RFIC element having first and second input / output terminals;
An antenna element connected to the first and second input / output terminals;
With
The antenna element is
A radiation portion including a first radiation pattern and a second radiation pattern;
A connection pattern that connects the first radiation pattern and the second radiation pattern, and a first and a second that branch from the two distant locations of the connection pattern, respectively, and that are connected to the first and second input / output terminals. A matching portion including first and second connection patterns reaching two ends;
Have
The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. Have a folded portion whose extending direction is reversed.
　この無線通信デバイスとしては、例えば、ＲＦＩＤタグを挙げることができる。なお、ＲＦＩＤタグは、無線通信デバイスの一例であって、これに限定されるものではない。
　上記構成によれば、連接パターンから分岐し、ＲＦＩＣ素子と接続する第１及び第２接続パターンにおいて、延在方向の反転する折り返し部分を有する。これによって、通常の応力の場合には、応力は連接パターンで止まり、接続パターンにはおよびにくい。さらに、通常より大きなねじり変形等を伴う応力を受けた場合にも、応力は接続パターンの折り返し部分の変形によって吸収される。これによって、応力はＲＦＩＣ素子との接続箇所である第１及び第２端部には及びにくく、ＲＦＩＣ素子とアンテナ素子との接続箇所の損傷の発生を抑制できる。 An example of this wireless communication device is an RFID tag. The RFID tag is an example of a wireless communication device and is not limited to this.
According to the above configuration, the first and second connection patterns branched from the connection pattern and connected to the RFIC element have the folded portions that are reversed in the extending direction. Thus, in the case of normal stress, the stress stops at the connection pattern and hardly reaches the connection pattern. Furthermore, even when a stress accompanied by a larger torsional deformation than usual is received, the stress is absorbed by the deformation of the folded portion of the connection pattern. As a result, the stress hardly reaches the first and second end portions where the RFIC element is connected, and the occurrence of damage at the connection portion between the RFIC element and the antenna element can be suppressed.
　第２の態様に係る無線通信デバイスは、上記第１の態様において、前記連接パターンは、前記第１放射パターン又は前記第２放射パターンの線幅より広い線幅を有してもよい。 In the wireless communication device according to the second aspect, in the first aspect, the connection pattern may have a line width wider than a line width of the first radiation pattern or the second radiation pattern.
　上記構成によれば、応力を受けたときにも連接パターンの変形を抑制できる。連接パターンが変形せず平面を保つことで、連接パターンとＲＦＩＣ素子を接続している第１及び第２接続パターンとを含む平面を維持でき、ＲＦＩＣ素子の接続箇所の損傷の発生を抑制できる。 According to the above configuration, the deformation of the connected pattern can be suppressed even when stress is applied. By maintaining the plane without deforming the connection pattern, it is possible to maintain the plane including the connection pattern and the first and second connection patterns connecting the RFIC elements, and to suppress the occurrence of damage at the connection locations of the RFIC elements.
　第３の態様に係る無線通信デバイスは、上記第１又は第２の態様において、前記アンテナ素子は、弾性を有する材料からなってもよい。 In the wireless communication device according to the third aspect, in the first or second aspect, the antenna element may be made of an elastic material.
　上記構成によれば、アンテナ素子が弾性を有することによって、応力を受けた際に弾性変形することで損傷の発生を抑制できる。 According to the above configuration, since the antenna element has elasticity, the occurrence of damage can be suppressed by elastic deformation when subjected to stress.
　第４の態様に係る無線通信デバイスは、上記第１から第３のいずれかの態様において、前記アンテナ素子は、金属膜または金属体で構成されていてもよい。 In the wireless communication device according to the fourth aspect, in any one of the first to third aspects, the antenna element may be formed of a metal film or a metal body.
　上記構成によれば、アンテナ素子が金属膜又は金属体で構成されていることによって、弾性を示すことができ、上述のように応力を受けた際に弾性変形することで損傷の発生を抑制できる。 According to the above configuration, the antenna element can be made elastic by being made of a metal film or metal body, and can be prevented from being damaged by elastic deformation when subjected to stress as described above. .
　第５の態様に係る無線通信デバイスは、上記第４の態様において、前記アンテナ素子は、連続する金属体で構成されていてもよい。 In the wireless communication device according to the fifth aspect, in the fourth aspect, the antenna element may be formed of a continuous metal body.
　上記構成によれば、連続する金属体で構成されることによって、アンテナ素子が一体的に弾性を示すことができ、応力に対する耐性を向上させることができる。 According to the above configuration, the antenna element can integrally exhibit elasticity by being composed of a continuous metal body, and resistance to stress can be improved.
　第６の態様に係る無線通信デバイスは、上記第１から第５のいずれかの態様において、前記第１放射パターン及び前記第２放射パターンは、前記連接パターンの延在方向に沿って延びるミアンダ状であってもよい。 In a wireless communication device according to a sixth aspect, in any one of the first to fifth aspects, the first radiation pattern and the second radiation pattern are meandered extending along an extending direction of the connection pattern. It may be.
　上記構成によれば、第１放射パターン及び第２放射パターンをミアンダ状とすることで弾性を向上させることができる。 According to the above configuration, the elasticity can be improved by making the first radiation pattern and the second radiation pattern into a meander shape.
　第７の態様に係る無線通信デバイスは、上記第１から第６のいずれかの態様において、前記第１放射パターン及び前記第２放射パターンの開放端の線幅は、他の部分の線幅よりも太くてもよい。 A wireless communication device according to a seventh aspect is the wireless communication device according to any one of the first to sixth aspects, wherein the line widths of the open ends of the first radiation pattern and the second radiation pattern are larger than the line widths of other portions. May be thicker.
　上記構成によれば、開放端の線幅を太くすることで、捩れや折り曲げに対する開放端の強度を高めることができる。 According to the above configuration, the strength of the open end against twisting or bending can be increased by increasing the line width of the open end.
　第８の態様に係る無線通信デバイスは、上記第１から第７のいずれかの態様において、前記ＲＦＩＣ素子は、ＲＦＩＣチップと、前記ＲＦＩＣチップに接続された整合回路と、を含むＲＦＩＣパッケージとして構成され、
　前記整合回路と、前記整合部とによって、通信周波数に相当する共振周波数を画定してもよい。 A wireless communication device according to an eighth aspect is the RFIC package according to any one of the first to seventh aspects, wherein the RFIC element includes an RFIC chip and a matching circuit connected to the RFIC chip. And
A resonance frequency corresponding to a communication frequency may be defined by the matching circuit and the matching unit.
　上記構成によれば、外部に整合部の一部として機能する、第１放射パターンと第２放射パターンとを連接する連接パターンを設けている。これによって、ＲＦＩＣ素子と、第１放射パターン及び第２放射パターンとを直接接続することなく、連接パターンから分岐した接続パターンを介してＲＦＩＣ素子を接続できる。そこで、通常の応力は、連接パターンに加わるものの、連接パターンから分岐した接続パターンには伝達しにくく、ＲＦＩＣ素子と接続パターンとの接続部の損傷が生じにくくなる。 According to the above configuration, the connection pattern that connects the first radiation pattern and the second radiation pattern, which functions as a part of the matching portion, is provided outside. Accordingly, the RFIC element can be connected via the connection pattern branched from the connection pattern without directly connecting the RFIC element to the first radiation pattern and the second radiation pattern. Thus, although normal stress is applied to the connection pattern, it is difficult to transmit to the connection pattern branched from the connection pattern, and damage to the connection portion between the RFIC element and the connection pattern is less likely to occur.
　第９の態様に係る無線通信デバイスは、上記第１から第８のいずれかの態様において、第１放射パターン及び第２放射パターンよりも伸び縮みしにくい部材であって、前記アンテナ素子の少なくとも一部を覆う部材をさらに備えてもよい。 A wireless communication device according to a ninth aspect is a member that is less likely to expand and contract than the first radiation pattern and the second radiation pattern in any of the first to eighth aspects, and is at least one of the antenna elements. You may further provide the member which covers a part.
　上記構成によれば、第１放射パターン及び第２放射パターンよりも伸び縮みしにくい部材をアンテナ素子の少なくとも一部に取り付けることで、アンテナ素子が縮んでしまったときに第１放射パターン及び第２放射パターンの一部同士が接触することを抑制できる。また、連接パターンと第１放射パターン及び第２放射パターンとが接触することを抑制できる。これによって、連接パターンと第１放射パターン及び第２放射パターンとの接触でアンテナの電気長が短くなってしまうことを抑制できるので、利得の低下を抑制できる。 According to the above configuration, the first radiation pattern and the second radiation pattern when the antenna element is contracted by attaching the member that is less likely to expand and contract than the first radiation pattern and the second radiation pattern to at least a part of the antenna element. It can suppress that a part of radiation pattern contacts. Moreover, it can suppress that a connection pattern, a 1st radiation pattern, and a 2nd radiation pattern contact. As a result, it is possible to suppress a decrease in the electrical length of the antenna due to contact between the connection pattern, the first radiation pattern, and the second radiation pattern, thereby suppressing a decrease in gain.
　第１０の態様に係る無線通信デバイス付きランドリー物品は、洗濯又はクリーニングを受けるランドリー物品と、
　前記ランドリー物品に付された無線通信デバイスであって、
　　第１及び第２の入出力端子を有するＲＦＩＣ素子と、
　　前記第１及び第２の入出力端子に接続されたアンテナ素子であって、
　　　第１放射パターンと、第２放射パターンと、前記第１放射パターンと前記第２放射パターンとを連接する連接パターンと、を含む放射部と、
　　　前記連接パターンの互いに離れた２箇所からそれぞれ分岐し、前記第１及び第２の入出力端子と接続する第１及び第２端部に至る第１及び第２接続パターンと、前記連接パターンとにより形成された整合部と、
を有するアンテナ素子と、
を備え、
　　前記第１接続パターンは、前記連接パターンと前記第１端部との間に延在方向が反転する折返し部分を有し、第２接続パターンは、前記連接パターンと前記第２端部との間に延在方向が反転する折返し部分を有する、無線通信デバイスと、
を備える。 The laundry article with a wireless communication device according to the tenth aspect is a laundry article that receives washing or cleaning,
A wireless communication device attached to the laundry article,
An RFIC element having first and second input / output terminals;
An antenna element connected to the first and second input / output terminals,
A radiation part including a first radiation pattern, a second radiation pattern, and a connection pattern that connects the first radiation pattern and the second radiation pattern;
First and second connection patterns that branch from the two distant locations of the connection pattern and reach the first and second ends connected to the first and second input / output terminals, and the connection pattern, A formed alignment portion; and
An antenna element having
With
The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. A wireless communication device having a folded portion whose extending direction is reversed to
Is provided.
　上記構成によれば、無線通信デバイスによって回収、洗濯、熱処理、納品等を管理することができる。 According to the above configuration, collection, washing, heat treatment, delivery, etc. can be managed by the wireless communication device.
　第１１の態様に係る無線通信デバイス付きランドリー物品は、上記第１０の態様において、前記無線通信デバイスは、布地に貼り付けられて、前記ランドリー物品に付されていてもよい。 The laundry article with a wireless communication device according to an eleventh aspect may be attached to the laundry article by attaching the wireless communication device to a cloth in the tenth aspect.
　上記構成によれば、無線通信デバイスは、布地内で応力に従って自在に伸縮しまたは捩れる。 According to the above configuration, the wireless communication device freely expands and contracts or twists according to the stress in the fabric.
　以下、実施の形態に係る無線通信デバイスの一例であるＲＦＩＤタグ及び無線通信デバイス付きランドリー物品の一例であるＲＦＩＤタグ付きランドリー物品について、添付図面を参照しながら説明する。なお、ＲＦＩＤタグは、無線通信デバイスの一例であって、これに限定されるものではない。また、図面において実質的に同一の部材については同一の符号を付している。 Hereinafter, an RFID tag as an example of a wireless communication device according to an embodiment and a laundry article with an RFID tag as an example of a laundry article with a wireless communication device will be described with reference to the accompanying drawings. The RFID tag is an example of a wireless communication device and is not limited to this. In the drawings, substantially the same members are denoted by the same reference numerals.
（実施の形態１）
＜ＲＦＩＤタグ＞
　図１Ａは、実施の形態１に係るＲＦＩＤタグ１０の構成を示す平面図である。図１Ｂは、図１ＡのＡ－Ａ方向から見た断面図である。図２Ａは、実施の形態１に係るＲＦＩＤタグ１０が応力によって撓んだ状態を示す概略斜視図である。図２Ｂは、図２Ａに、さらにねじり変形を伴う応力によって実施の形態１に係るＲＦＩＤタグ１０が撓んだ状態を示す概略斜視図である。図３は、実施の形態１に係るＲＦＩＤタグ１０を構成するアンテナ素子７の構成を示す平面図である。
　このＲＦＩＤタグ１０は、応力が加わって変形する物品を管理するためのＲＦＩＤタグである。このＲＦＩＤタグ１０は、第１及び第２の入出力端子を有するＲＦＩＣ素子１と、第１及び第２の入出力端子１３ａ、１３ｂに接続されたアンテナ素子７と、を備える。アンテナ素子７は、第１放射パターン２ａと、第２放射パターン２ｂと、を含む放射部と、第１放射パターン２ａと第２放射パターン２ｂとを連接する連接パターン３と、連接パターン３の互いに離れた２箇所８ａ、８ｂからそれぞれ分岐し、第１及び第２の入出力端子と接続する第１及び第２端部５ａ、５ｂに至る第１及び第２接続パターン４ａ、４ｂと、を含む整合部と、を有する。整合部は、第１接続パターン４ａ、第２接続パターン４ｂおよび連接パターン３にて形成されたループ状の整合部である。つまり、このＲＦＩＤタグ１０は、ダイポールアンテナを構成する２つの放射パターン２ａ、２ｂとＲＦＩＣ素子１との間にループ状の整合部を有した構成を持つ。さらに、第１接続パターン４ａは、連接パターン３と第１端部５ａとの間に延在方向が反転する折返し部分９ａを有し、第２接続パターン４ｂは、連接パターン３と第２端部５ｂとの間に延在方向が反転する折返し部分９ｂを有する。
　このＲＦＩＤタグ１０によれば連接パターン３から分岐し、ＲＦＩＣ素子１と接続する第１及び第２接続パターン４ａ、４ｂが延在方向の反転する折り返し部分９ａ、９ｂを有する。これによって、図２Ａに示すような応力を受けた場合には、応力は連接パターン３で止まり、第１及び第２接続パターン４ａ、４ｂには応力が及びにくく、ＲＦＩＣ素子１とアンテナ素子７との接続箇所の損傷の発生を抑制できる。さらに、図２Ｂに示されるような、通常より大きなねじり変形等を伴う応力を受けた場合にも、応力は、第１及び第２接続パターン４ａ、４ｂの折り返し部分９ａ、９ｂが変形して吸収され、ＲＦＩＣ素子１との接続箇所である第１及び第２端部５ａ、５ｂには応力が及びにくく、ＲＦＩＣ素子１とアンテナ素子７との接続箇所の損傷の発生を抑制できる。
　なお、ここでＲＦＩＤタグ１０を付す物品としては、応力が加わって変形する物品であればよく、カバン、靴等の革製品や、衣類、シーツ、タオル等のリネン類等の洗濯、クリーニング時の応力を受ける布製品を含むランドリー物品であってもよい。 (Embodiment 1)
<RFID tag>
FIG. 1A is a plan view showing the configuration of the RFID tag 10 according to Embodiment 1. FIG. FIG. 1B is a cross-sectional view as seen from the AA direction in FIG. 1A. FIG. 2A is a schematic perspective view showing a state in which the RFID tag 10 according to Embodiment 1 is bent by stress. FIG. 2B is a schematic perspective view showing a state where the RFID tag 10 according to the first embodiment is bent due to the stress accompanied by torsional deformation in FIG. 2A. FIG. 3 is a plan view showing the configuration of the antenna element 7 constituting the RFID tag 10 according to the first embodiment.
The RFID tag 10 is an RFID tag for managing an article that is deformed by stress. The RFID tag 10 includes an RFIC element 1 having first and second input / output terminals, and an antenna element 7 connected to the first and second input / output terminals 13a and 13b. The antenna element 7 includes a radiation portion including a first radiation pattern 2a and a second radiation pattern 2b, a connection pattern 3 that connects the first radiation pattern 2a and the second radiation pattern 2b, and a connection pattern 3 each other. First and second connection patterns 4a and 4b branched from two distant locations 8a and 8b, respectively, and connected to the first and second input / output terminals to reach the first and second end portions 5a and 5b. And a matching portion. The matching portion is a loop-shaped matching portion formed by the first connection pattern 4 a, the second connection pattern 4 b, and the connection pattern 3. That is, the RFID tag 10 has a configuration in which a loop-shaped matching portion is provided between the two radiation patterns 2a and 2b constituting the dipole antenna and the RFIC element 1. Further, the first connection pattern 4a has a folded portion 9a whose direction of extension is reversed between the connection pattern 3 and the first end 5a, and the second connection pattern 4b is the connection pattern 3 and the second end. 5b has a folded portion 9b whose extending direction is reversed.
According to the RFID tag 10, the first and second connection patterns 4a and 4b branched from the connection pattern 3 and connected to the RFIC element 1 have folded portions 9a and 9b in which the extending direction is reversed. As a result, when stress as shown in FIG. 2A is received, the stress stops at the connection pattern 3, and the first and second connection patterns 4 a and 4 b are not easily stressed, and the RFIC element 1 and the antenna element 7 It is possible to suppress the occurrence of damage at the connection points. Further, even when a stress accompanied by a larger torsional deformation or the like as shown in FIG. 2B is received, the stress is absorbed by the folded portions 9a and 9b of the first and second connection patterns 4a and 4b. In addition, the first and second end portions 5a and 5b, which are the connection places with the RFIC element 1, are hardly stressed, and the occurrence of damage at the connection places between the RFIC element 1 and the antenna element 7 can be suppressed.
The article to which the RFID tag 10 is attached may be any article that deforms when stress is applied, such as leather products such as bags and shoes, and linen items such as clothes, sheets, and towels. It may be a laundry article that includes a fabric product that receives it.
　図４Ａは、図１のＲＦＩＤタグ１０の等価回路図である。図４Ｂは、図４ＡのＲＦＩＤタグ１０を構成するＲＦＩＣ素子１の構成を示す概略図である。
　このＲＦＩＤタグ１０は、図４Ａの等価回路図に示すように、第１放射パターン２ａと第２放射パターン２ｂとを有するダイポール型のアンテナ素子７を有する。また、第１放射パターン２ａと第２放射パターン２ｂとを連接する連接パターン３を有する。このＲＦＩＤタグ１０は、ＲＦＩＣ素子１内の整合回路１２と、連接パターン３と第１及び第２接続パターン４ａ、４ｂとからなる整合部と、によって、通信周波数に相当する共振周波数を画定することができる。
　このＲＦＩＤタグ１０では、外部に整合部の一部として機能する、第１放射パターン２ａと第２放射パターン２ｂとを連接する連接パターン３を設けている。これによって、ＲＦＩＣ素子１と、第１放射パターン２ａ及び第２放射パターン２ｂとを直接接続することなく、連接パターン３から分岐した第１及び第２接続パターン４ａ、４ｂを介してＲＦＩＣ素子１を接続できる。そこで、通常の応力は、連接パターン３に加わるものの、連接パターン３から分岐した第１及び第２接続パターン４ａ、４ｂには伝達しにくく、ＲＦＩＣ素子１と第１及び第２接続パターン４ａ、４ｂとの接続部の損傷が生じにくくなる。 FIG. 4A is an equivalent circuit diagram of the RFID tag 10 of FIG. FIG. 4B is a schematic diagram showing the configuration of the RFIC element 1 constituting the RFID tag 10 of FIG. 4A.
As shown in the equivalent circuit diagram of FIG. 4A, the RFID tag 10 includes a dipole antenna element 7 having a first radiation pattern 2a and a second radiation pattern 2b. Moreover, it has the connection pattern 3 which connects the 1st radiation pattern 2a and the 2nd radiation pattern 2b. The RFID tag 10 defines a resonance frequency corresponding to a communication frequency by a matching circuit 12 in the RFIC element 1 and a matching portion including the connection pattern 3 and the first and second connection patterns 4a and 4b. Can do.
In the RFID tag 10, a connection pattern 3 that connects the first radiation pattern 2 a and the second radiation pattern 2 b that functions as a part of the matching unit is provided outside. Thus, the RFIC element 1 is connected to the RFIC element 1 via the first and second connection patterns 4a and 4b branched from the connection pattern 3 without directly connecting the RFIC element 1 to the first radiation pattern 2a and the second radiation pattern 2b. Can connect. Therefore, although normal stress is applied to the connection pattern 3, it is difficult to transmit to the first and second connection patterns 4 a and 4 b branched from the connection pattern 3, and the RFIC element 1 and the first and second connection patterns 4 a and 4 b. Damage to the connecting part is difficult to occur.
　以下に、このＲＦＩＤタグ１０を構成する構成部材について説明する。
　＜ＲＦＩＣ素子＞
　ＲＦＩＣ素子１は、ＲＦＩＤ信号を処理するＲＦＩＣチップ１１とこれを実装する整合回路１２とを有するＲＦＩＣパッケージとして構成される。ＲＦＩＣチップ１１は、メモリ回路や信号処理回路を内蔵し、かつエポキシ樹脂製の封止層等によって封止してもよい。整合回路１２は、ＬＴＣＣ等のセラミックを材料として多層基板状に形成してもよい。
　ＲＦＩＣチップ１１を実装する基板は、エポキシ等のリジッドな樹脂基板やＰＩ等のフレキシブルな樹脂基板であってもよいが、上記のようにセラミック基板であることが好ましい。つまり、ＲＦＩＣ素子１をセラミックパッケージ品とすることで、ＲＦＩＣ素子１の耐熱性や堅牢性が向上し、洗濯工程において曲げや捻りが加わっても、ＲＦＩＤタグ１０の信頼性を保つことができる。
　また、整合回路１２は、例えば、図４Ｂに示すように容量を構成してもよい。さらに、ＲＦＩＣ素子１の下面には、２つの入出力端子１３ａ、１３ｂが設けられている。入出力端子１３ａ及び１３ｂは、それぞれ、図示しない導電性接合材（例えば、Ａｇ等）によって、第１端部５ａ及び第２端部５ｂに接続される。この結果、整合回路１２と、連接パターン３と第１及び第２接続パターン４ａ、４ｂとからなる整合部と、によって、共振回路を構成し、通信周波数に相当する共振周波数を画定してもよい。この共振回路は、通信周波数、例えば、ＵＨＦ帯の周波数で共振する。
　なお、共振周波数としては、例えば、ＨＦ帯ＲＦＩＤシステムにおける１３ＭＨｚ帯、ＵＨＦ帯ＲＦＩＤシステムにおける９００ＭＨｚ帯、等を利用できる。特に、ＵＨＦ帯ＲＦＩＤシステムは、通信距離が比較的長いため複数のタグを一括して読取りできる。 Below, the structural member which comprises this RFID tag 10 is demonstrated.
<RFIC element>
The RFIC element 1 is configured as an RFIC package having an RFIC chip 11 for processing an RFID signal and a matching circuit 12 for mounting the RFIC chip 11. The RFIC chip 11 may incorporate a memory circuit or a signal processing circuit and may be sealed with an epoxy resin sealing layer or the like. The matching circuit 12 may be formed in a multilayer substrate using ceramics such as LTCC.
The substrate on which the RFIC chip 11 is mounted may be a rigid resin substrate such as epoxy or a flexible resin substrate such as PI, but is preferably a ceramic substrate as described above. That is, by making the RFIC element 1 a ceramic package product, the heat resistance and robustness of the RFIC element 1 are improved, and the reliability of the RFID tag 10 can be maintained even if bending or twisting is applied in the washing process.
Further, the matching circuit 12 may configure a capacitor as shown in FIG. 4B, for example. Further, two input / output terminals 13 a and 13 b are provided on the lower surface of the RFIC element 1. The input / output terminals 13a and 13b are respectively connected to the first end 5a and the second end 5b by a conductive bonding material (eg, Ag) not shown. As a result, the resonance circuit may be configured by the matching circuit 12 and the matching portion including the connection pattern 3 and the first and second connection patterns 4a and 4b, and the resonance frequency corresponding to the communication frequency may be defined. . This resonant circuit resonates at a communication frequency, for example, a UHF band frequency.
As the resonance frequency, for example, a 13 MHz band in the HF band RFID system, a 900 MHz band in the UHF band RFID system, and the like can be used. In particular, since the UHF band RFID system has a relatively long communication distance, it can read a plurality of tags at once.
　＜アンテナ素子＞
　アンテナ素子７は、放射部と整合部とを有する。放射部は、第１放射パターン２ａと、第２放射パターン２ｂと、を含む。整合部は、連接パターン３と、第１及び第２接続パターン４ａ、４ｂとを含む。 <Antenna element>
The antenna element 7 has a radiation part and a matching part. The radiation part includes a first radiation pattern 2a and a second radiation pattern 2b. The matching portion includes a connection pattern 3 and first and second connection patterns 4a and 4b.
　また、アンテナ素子７は、金属膜または金属体で構成されていてもよい。アンテナ素子７が金属膜又は金属体で構成されていることによって、弾性を示すことができ、上述のように応力を受けた際に弾性変形することで損傷の発生を抑制できる。
　さらに、アンテナ素子７は、連続する金属体で構成されていてもよい。連続する金属体で構成されることによって、アンテナ素子７が一体的に弾性を示すことができ、応力に対する耐性を向上させることができる。
　またさらに、アンテナ素子７は、導電性を有すると共に、弾性を有する材料、例えば、ステンレス材（例えば、ＳＵＳ３０４）、銅板、アルミニウム板、ニッケル板、チタン板等の材料からなってもよい。耐食性を考慮するとステンレス材が好ましい。アンテナ素子７は、例えば、形状弾性を示すステンレス材の表面にニッケル錫メッキ処理を施したもので構成してもよい。アンテナ素子７が弾性を有することによって、洗濯時等の応力を受けた際に弾性変形することで損傷の発生を抑制できる。 The antenna element 7 may be made of a metal film or a metal body. Since the antenna element 7 is made of a metal film or metal body, elasticity can be exhibited, and the occurrence of damage can be suppressed by elastic deformation when subjected to stress as described above.
Furthermore, the antenna element 7 may be comprised with the continuous metal body. By being composed of a continuous metal body, the antenna element 7 can exhibit elasticity integrally, and resistance to stress can be improved.
Furthermore, the antenna element 7 may be made of a material having conductivity and elasticity, such as a stainless material (for example, SUS304), a copper plate, an aluminum plate, a nickel plate, a titanium plate, or the like. In consideration of corrosion resistance, stainless steel is preferable. The antenna element 7 may be constituted by, for example, a surface of a stainless material exhibiting shape elasticity and subjected to nickel tin plating. Since the antenna element 7 has elasticity, the occurrence of damage can be suppressed by elastic deformation when subjected to stress during washing or the like.
　なお、アンテナ素子７が示す弾性は、より具体的には形状弾性である。したがって、アンテナ素子７の形は応力によって変化し、応力が解除されると元の状態に回復する。つまり、アンテナ素子７は、形状保持性も併せて有する。
　このアンテナ素子７では、第１放射パターン２ａ及び第２放射パターン２ｂを支持する支持フィルム等の基材を有していない。これによって、通常のＰＥＴやＰＩ等の支持フィルム等の基材を用いた場合に比べて、基材を用いていないので水分や空気についての良好な透過性が得られる。また、リネン類の乾燥性や耐薬剤性を大きく阻害しない。さらに、モールド樹脂による保護を必ずしも必要としないので、モールド樹脂によってＲＦＩＤタグ１０の厚みが大きくなりにくく、衣類の装着感を阻害しにくい。 Note that the elasticity of the antenna element 7 is more specifically shape elasticity. Accordingly, the shape of the antenna element 7 changes depending on the stress, and when the stress is released, the original state is restored. That is, the antenna element 7 also has shape retention.
The antenna element 7 does not have a substrate such as a support film that supports the first radiation pattern 2a and the second radiation pattern 2b. Thereby, compared with the case where a base material such as a normal support film such as PET or PI is used, since the base material is not used, good permeability with respect to moisture and air can be obtained. Moreover, the drying property and chemical resistance of linens are not greatly impaired. Furthermore, since the protection by the mold resin is not necessarily required, the thickness of the RFID tag 10 is not easily increased by the mold resin, and the wearing feeling of the clothes is not easily inhibited.
　　＜第１及び第２放射パターン＞
　第１放射パターン２ａ及び第２放射パターン２ｂは、図１Ａに示すように連接パターン３の延在方向（ｘ方向）に沿って延びるミアンダ状であってもよい。ミアンダ状とすることで弾性を向上させることができる。ミアンダ状は、例えば、互いに直交する長辺および短辺によって構成してもよい。ミアンダパターンを描く長辺はｙ方向に延在する。また、ミアンダパターンを描く短辺は、連接パターン３から離れる方向（ｘ方向）に延びる辺となる。つまり、第１放射パターン２ａ及び第２放射パターン２ｂの各々は、連接パターン３から離れる方向（ｘ方向）に延びるミアンダパターンを有する。 <First and second radiation patterns>
The first radiation pattern 2a and the second radiation pattern 2b may have a meander shape extending along the extending direction (x direction) of the connection pattern 3 as shown in FIG. 1A. The elasticity can be improved by using a meander shape. The meander shape may be constituted by, for example, a long side and a short side orthogonal to each other. The long side that draws the meander pattern extends in the y direction. In addition, the short side that draws the meander pattern is a side that extends in a direction away from the connection pattern 3 (x direction). That is, each of the first radiation pattern 2a and the second radiation pattern 2b has a meander pattern extending in a direction away from the connection pattern 3 (x direction).
　第１放射パターン２ａ及び第２放射パターン２ｂの開放端１６ａ、１６ｂの線幅は、後述するように、他の部分の線幅よりも太くてもよい（図７、図８）。開放端１６ａ、１６ｂの線幅を太くすることで、捩れや折り曲げに対する開放端１６ａ、１６ｂの強度を高めることができる。 The line widths of the open ends 16a and 16b of the first radiation pattern 2a and the second radiation pattern 2b may be larger than the line widths of other portions as will be described later (FIGS. 7 and 8). By increasing the line width of the open ends 16a and 16b, the strength of the open ends 16a and 16b against twisting and bending can be increased.
　　＜連接パターン＞
　このアンテナ素子７は、上記のように第１放射パターン２ａと第２放射パターン２ｂとを連接する連接パターン３を有する。そこで、通常加わる応力は、連接パターン３に加わるものの、連接パターン３から分岐した第１及び第２接続パターン４ａ、４ｂには伝達しにくく、ＲＦＩＣ素子１と第１及び第２接続パターン４ａ、４ｂとの接続部の損傷が生じにくい。 <Connection pattern>
As described above, the antenna element 7 has the connection pattern 3 that connects the first radiation pattern 2a and the second radiation pattern 2b. Therefore, although the stress that is normally applied is applied to the connection pattern 3, it is difficult to transmit to the first and second connection patterns 4a and 4b branched from the connection pattern 3, and the RFIC element 1 and the first and second connection patterns 4a and 4b. Damage to the connecting part is difficult to occur.
　連接パターン３は、第１放射パターン２ａ又は第２放射パターン２ｂの線幅より広い線幅、例えば略３倍の線幅を有してもよい。連接パターン３が放射部の線幅より広い線幅を有することによって、より大きな剛性を得ることができる。これによって応力を受けたときにも連接パターン３の変形を抑制できる。連接パターン３が変形せず平面を保つことで、連接パターン３とＲＦＩＣ素子１を接続している第１及び第２接続パターン４ａ、４ｂとを含む平面を維持でき、ＲＦＩＣ素子１の接続箇所の損傷の発生を抑制できる。 The connection pattern 3 may have a line width wider than the line width of the first radiation pattern 2a or the second radiation pattern 2b, for example, approximately three times the line width. When the connection pattern 3 has a line width wider than that of the radiating portion, greater rigidity can be obtained. Accordingly, deformation of the connection pattern 3 can be suppressed even when subjected to stress. By maintaining the plane without deforming the connection pattern 3, it is possible to maintain a plane including the connection pattern 3 and the first and second connection patterns 4 a and 4 b connecting the RFIC element 1. The occurrence of damage can be suppressed.
　　＜第１及び第２接続パターン＞
　アンテナ素子７は、連接パターン３の離れた２箇所８ａ、８ｂからｙ方向に分岐してＲＦＩＣ素子１の第１及び第２入出力端子１３ａ、１３ｂと接続するための第１端部５ａ及び第２端部５ｂに延びる第１及び第２接続パターン４ａ、４ｂを有する。ＲＦＩＣ素子１は、第１及び第２端部５ａ、５ｂを跨ぐようにアンテナ素子７に実装される。このとき、ＲＦＩＣ素子１の２つの入出力端子１３ａ、１３ｂは、図示しない導電性接合材（材料はＡｇ等）によって、第１端部５ａ及び第２端部５ｂにそれぞれ接続される。こうして構成されたＲＦＩＤタグ１０を手で持ち上げると、ＲＦＩＤタグ１０は、アンテナ素子７が示す弾性によって図２Ａ又は図２Ｂに示すように撓む。 <First and second connection patterns>
The antenna element 7 branches from the two places 8a and 8b apart from the connection pattern 3 in the y direction and is connected to the first and second input / output terminals 13a and 13b of the RFIC element 1 and the first end 5a and the second end. The first and second connection patterns 4a and 4b extend to the two end portions 5b. The RFIC element 1 is mounted on the antenna element 7 so as to straddle the first and second end portions 5a and 5b. At this time, the two input / output terminals 13a and 13b of the RFIC element 1 are connected to the first end portion 5a and the second end portion 5b, respectively, by a conductive bonding material (not shown) (material is Ag or the like). When the RFID tag 10 thus configured is lifted by hand, the RFID tag 10 bends as shown in FIG. 2A or FIG. 2B due to the elasticity of the antenna element 7.
　さらに、第１及び第２接続パターン４ａ、４ｂは、延在方向が反転する折返し部分９ａ、９ｂを有する。折り返し部分９ａ、９ｂとは、延在方向が反転する部分である。折り返し部分９ａ、９ｂの形状としては、例えば、ループ形状である。曲率を大きくした場合にはＵ字形状となる。具体的には、連接パターン３の分岐箇所８ａ、８ｂから第１端部５ａ又は第２端部５ｂに至る第１及び第２接続パターン４ａ、４ｂの延在方向が反転する部分である。折り返し部分９ａ、９ｂの形状は、図１Ａに示すように直線形状からなる場合に限られず、曲線形状であってもよい。そこで、通常より大きなねじり変形等を伴う応力を受けた場合にも、応力は第１及び第２接続パターン４ａ、４ｂの折り返し部分９ａ、９ｂの変形によって吸収される。これによって、折り返し部分９ａ、９ｂより先の第１端部及び第２端部５ａ、５ｂには応力が及びにくく、ＲＦＩＣ素子１との接続箇所の損傷の発生を抑制できる。
　第１及び第２接続パターン４ａ、４ｂは、図１Ａに示すように、分岐部分８ａ、８ｂからｙ方向に延在する部分ａと、その後、ｘ方向に若干延在した後、延在方向が反転して－ｙ方向に延在する部分ｃがあり、第１及び第２端部５ａ、５ｂに至る。第１端部及び第２端部５ａ、５ｂと連接パターン３との間の距離ｂは、ｂ＝ａ－ｃとして表される。好ましくは、ａはｂより大きい。
　また、ｙ方向に延在する部分ａに対して、－ｙ方向に延在する部分ｃの長さは部分ａの１／４以上３／４以下の範囲が好ましい。これによって通常より大きなねじり変形等を伴う応力を受けた場合にも、応力を折り返し部分９ａ、９ｂの変形によって吸収しやすい。部分ｃの長さが１／４未満しかない場合、応力を折り返し部分９ａ、９ｂで十分に吸収できないか、あるいは、第１及び第２端部５ａ、５ｂに応力の影響が及ぶおそれがある。３／４を超える場合は、折り返し部分９ａ、９ｂが応力で変形した際にＲＦＩＣ素子１が連接パターン３に接触する可能性がある。 Furthermore, the first and second connection patterns 4a and 4b have folded portions 9a and 9b whose extending directions are reversed. The folded portions 9a and 9b are portions where the extending direction is reversed. The shape of the folded portions 9a and 9b is, for example, a loop shape. When the curvature is increased, it becomes U-shaped. Specifically, the extending direction of the first and second connection patterns 4a and 4b from the branch points 8a and 8b of the connection pattern 3 to the first end 5a or the second end 5b is reversed. The shape of the folded portions 9a and 9b is not limited to a linear shape as shown in FIG. 1A, and may be a curved shape. Therefore, even when a stress accompanied by a larger torsional deformation or the like is received, the stress is absorbed by the deformation of the folded portions 9a and 9b of the first and second connection patterns 4a and 4b. As a result, the first end portion and the second end portions 5a and 5b ahead of the folded portions 9a and 9b are not easily stressed, and the occurrence of damage at the connection location with the RFIC element 1 can be suppressed.
As shown in FIG. 1A, the first and second connection patterns 4a and 4b have a portion a that extends in the y direction from the branch portions 8a and 8b, and then extends slightly in the x direction, and then the extending direction is There is a portion c that is inverted and extends in the −y direction, and reaches the first and second end portions 5a and 5b. The distance b between the first and second end portions 5a and 5b and the connection pattern 3 is expressed as b = ac. Preferably a is greater than b.
Further, the length of the portion c extending in the −y direction with respect to the portion a extending in the y direction is preferably in a range from ¼ to ¾ of the portion a. As a result, even when a stress accompanying a larger torsional deformation or the like is received, the stress is easily absorbed by the deformation of the folded portions 9a and 9b. When the length of the portion c is less than ¼, the stress may not be sufficiently absorbed by the folded portions 9a and 9b, or the first and second end portions 5a and 5b may be affected by the stress. When the ratio exceeds 3/4, the RFIC element 1 may come into contact with the connection pattern 3 when the folded portions 9a and 9b are deformed by stress.
　本実施の形態１に係るＲＦＩＤタグ１０では、連接パターン３を有すると共に、第１接続パターン４ａ及び第２接続パターン４ｂに延在方向が反転する折り返し部分９ａ、９ｂを設けている。これによって、通常の応力が加わった場合だけでなく、より大きなねじり変形等を伴う応力を受けた場合にも、ＲＦＩＣ素子１の脱落やアンテナ素子７の断線などの接続不良が生じる懸念を軽減することができる。 The RFID tag 10 according to the first embodiment has the connection pattern 3 and the first connection pattern 4a and the second connection pattern 4b are provided with folded portions 9a and 9b whose extending directions are reversed. As a result, not only when normal stress is applied, but also when a stress accompanied by a larger torsional deformation or the like is applied, the risk of connection failure such as dropping of the RFIC element 1 or disconnection of the antenna element 7 is reduced. be able to.
　また、第１放射パターン２ａ及び第２放射パターン２ｂは、形状弾性を有し、かつ、支持する基材等を用いず、異種材料の固着界面が存在していない。そこで、洗濯作業工程における応力が第１放射パターン２ａ及び第２放射パターン２ｂに集中しにくく、第１放射パターン２ａ及び第２放射パターン２ｂにおける断線は生じにくい。 Moreover, the first radiation pattern 2a and the second radiation pattern 2b have shape elasticity, do not use a supporting base material, and do not have a fixing interface of different materials. Therefore, the stress in the washing process is less likely to concentrate on the first radiation pattern 2a and the second radiation pattern 2b, and disconnections in the first radiation pattern 2a and the second radiation pattern 2b are less likely to occur.
＜ＲＦＩＤタグ１０の製造方法＞
　ＲＦＩＤタグ１０の製造方法を以下に説明する。
（ａ）まず、金属板が準備され、例えば、ポンチによって金属板がアンテナ素子７の形状に打ち抜かれる。
（ｂ）次に、ＲＦＩＣ素子１がアンテナ素子７の端部５ａ、５ｂの間に実装されてＲＦＩＤタグ１０が得られる。 <Method for Manufacturing RFID Tag 10>
A method for manufacturing the RFID tag 10 will be described below.
(A) First, a metal plate is prepared. For example, the metal plate is punched into the shape of the antenna element 7 by a punch.
(B) Next, the RFIC element 1 is mounted between the end portions 5 a and 5 b of the antenna element 7 to obtain the RFID tag 10.
　なお、上記製造方法では、金属板から直接にアンテナ素子７の形状に打ち抜いたが、アンテナ素子７の製造方法は、金属板からの一体的な打ち抜き法に限られない。アンテナ素子７の各部分を作製し、各部分を溶接又ははんだ付け等によって接合してアンテナ素子７を形成してもよい。また、金属板からの打ち抜きの場合にも上記の例示に限られず、例えば、金属板材の縁部とアンテナ素子７との間に未切断の箇所を残しておき、ＲＦＩＣ素子１との接続を行う際の支持体として使用してもよい。また、一つの金属板材から一つのアンテナ素子７を打ち抜く場合に限られず、一つの金属板材から複数のアンテナ素子７を打ち抜いてもよい。 In the above manufacturing method, the shape of the antenna element 7 is directly punched from the metal plate. However, the manufacturing method of the antenna element 7 is not limited to the integral punching method from the metal plate. The antenna element 7 may be formed by producing each part of the antenna element 7 and joining the parts by welding or soldering. Further, the case of punching from a metal plate is not limited to the above example. For example, an uncut portion is left between the edge of the metal plate material and the antenna element 7 to connect to the RFIC element 1. It may be used as a support for the occasion. Further, the present invention is not limited to punching one antenna element 7 from one metal plate material, and a plurality of antenna elements 7 may be punched from one metal plate material.
＜ＲＦＩＤタグ付きランドリー物品＞
　図５は、実施の形態１に係るＲＦＩＤタグ１０を衣類２２に取り付けたＲＦＩＤタグ付きランドリー物品２０を示す概略図である。ＲＦＩＤタグ１０は、例えば、布製のブランドタグに配された状態でパッチ（図示せず）等によって封止される。ＲＦＩＤタグ１０は、ブランドタグ内の空間内で、応力に従って自在に伸縮しまたは捩れる。ＲＦＩＤタグ１０を封止したブランドタグは、例えば、ＲＦＩＣ素子１がシャツ２２の後方に当たるようにしてシャツ２２の首元に縫い付けられる（図５参照）。これによって、体にＲＦＩＣ素子１の感触が伝わらないようにできる。 <Laundry items with RFID tags>
FIG. 5 is a schematic view showing a laundry article 20 with an RFID tag in which the RFID tag 10 according to the first embodiment is attached to a garment 22. For example, the RFID tag 10 is sealed with a patch (not shown) or the like in a state of being arranged on a cloth brand tag. The RFID tag 10 is freely expanded and contracted or twisted according to stress in the space in the brand tag. For example, the brand tag in which the RFID tag 10 is sealed is sewn to the neck of the shirt 22 so that the RFIC element 1 hits the back of the shirt 22 (see FIG. 5). This prevents the touch of the RFIC element 1 from being transmitted to the body.
　このＲＦＩＤタグ１０は、ダイポール型のＲＦＩＤタグであり、アンテナ素子７およびＲＦＩＣ素子１によって構成され、例えば、９００ＭＨｚ帯、つまりＵＨＦ帯の通信周波数に対応している。
　なお、ランドリー物品としては、上記衣類に限られず、シーツ、タオル等のリネン類等の洗濯、クリーニング時の応力を受ける布製品を含む。
　このＲＦＩＤタグ付きランドリー物品２０によれば、上記ＲＦＩＤタグ１０によって回収、洗濯、熱処理、納品等を管理することができる。 The RFID tag 10 is a dipole type RFID tag, and includes an antenna element 7 and an RFIC element 1, and corresponds to a communication frequency of, for example, 900 MHz band, that is, UHF band.
The laundry article is not limited to the above-described clothing, but includes cloth products that receive stress during washing and cleaning such as linens such as sheets and towels.
According to the RFID tag-equipped laundry article 20, the RFID tag 10 can manage collection, washing, heat treatment, delivery, and the like.
（実施の形態２）
　図６Ａは、実施の形態２に係るＲＦＩＤタグ１０ａの構成を示す平面図である。図６Ｂは、図６ＡのＢ－Ｂ方向から見た断面図である。
　このＲＦＩＤタグ１０ａは、実施の形態１に係るＲＦＩＤタグと対比すると、連接パターン３が第１放射パターン２ａ又は第２放射パターン２ｂの線幅より広い線幅を有する点で相違する。連接パターン３が放射部の線幅より広い線幅を有することによって、より大きな剛性を得ることができる。これによって応力を受けたときにも連接パターン３の変形を抑制できる。連接パターン３が変形せず平面を保つことで、連接パターン３とＲＦＩＣ素子１を接続している第１及び第２接続パターン４ａ、４ｂとを含む平面を維持でき、ＲＦＩＣ素子１の接続箇所の損傷の発生を抑制できる。 (Embodiment 2)
FIG. 6A is a plan view showing the configuration of the RFID tag 10a according to the second embodiment. 6B is a cross-sectional view seen from the BB direction of FIG. 6A.
This RFID tag 10a is different from the RFID tag according to Embodiment 1 in that the connection pattern 3 has a line width wider than that of the first radiation pattern 2a or the second radiation pattern 2b. When the connection pattern 3 has a line width wider than that of the radiating portion, greater rigidity can be obtained. Accordingly, deformation of the connection pattern 3 can be suppressed even when subjected to stress. By maintaining the plane without deforming the connection pattern 3, it is possible to maintain a plane including the connection pattern 3 and the first and second connection patterns 4 a and 4 b connecting the RFIC element 1. The occurrence of damage can be suppressed.
（実施の形態３）
　図７Ａは、実施の形態３に係るＲＦＩＤタグ１０ｂの構成を示す平面図である。図７Ｂは、図７ＡのＣ－Ｃ方向から見た断面図である。図８は、実施の形態３に係るＲＦＩＤタグ１０ｂを構成するアンテナ素子７ａの構成を示す平面図である。
　このＲＦＩＤタグ１０ｂは、実施の形態２に係るＲＦＩＤタグと対比すると、さらに第１及び第２放射パターン２ａ、２ｂの開放端１６ａ、１６ｂの線幅は、他の部分の線幅よりも太い点で相違する。例えば、第１放射パターン２ａ及び第２放射パターン２ｂのいずれについても、開放端１６ａ、１６ｂの線幅は他の部分の線幅の略３倍である。つまり、第１放射パターン２ａの開放端１６ａには幅広部が形成され、第２放射パターン２ｂの開放端１６ｂには幅広部が形成されている。開放端１６ａ、１６ｂの線幅を太くすることで、捩れや折り曲げに対する連接パターン３および開放端１６ａ、１６ｂの強度を高めることができる。また、洗濯時にＲＦＩＤタグ１０ｂが、衣料や商製品を破くなどの支障が無いように開放端部１６ａ、１６ｂのエッジ部に丸み１７ａ、１７ｂをもたせるとよい。 (Embodiment 3)
FIG. 7A is a plan view showing a configuration of an RFID tag 10b according to Embodiment 3. FIG. 7B is a cross-sectional view seen from the CC direction of FIG. 7A. FIG. 8 is a plan view showing the configuration of the antenna element 7a constituting the RFID tag 10b according to the third embodiment.
In comparison with the RFID tag according to the second embodiment, the RFID tag 10b further has a larger line width at the open ends 16a and 16b of the first and second radiation patterns 2a and 2b than the line width of other portions. Is different. For example, for both the first radiation pattern 2a and the second radiation pattern 2b, the line widths of the open ends 16a and 16b are approximately three times the line widths of the other portions. That is, a wide portion is formed at the open end 16a of the first radiation pattern 2a, and a wide portion is formed at the open end 16b of the second radiation pattern 2b. By increasing the line width of the open ends 16a and 16b, the strength of the connection pattern 3 and the open ends 16a and 16b against twisting and bending can be increased. Further, it is preferable to provide roundness 17a, 17b at the edge portions of the open end portions 16a, 16b so that the RFID tag 10b does not hinder clothing or commercial products during washing.
　さらに、第１放射パターン２ａ及び第２放射パターン２ｂはいずれも、ミアンダパターンを描く長辺によって連接パターン３と接続される。同様に、開放端１６ａ、１６ｂの各々に達するのは、ミアンダパターンを描く長辺である。これによって、開放端１６ａ、１６ｂの根本部分における第１放射パターン２ａ及び第２放射パターン２ｂの折り曲げ強度が増大し、比較的線幅の細いミアンダ状の第１放射パターン２ａ及び第２放射パターン２ｂが曲げや捻りを担い、洗濯工程において第１放射パターン２ａ及び第２放射パターン２ｂが断線する懸念を軽減することができる。 Furthermore, the first radiation pattern 2a and the second radiation pattern 2b are both connected to the connection pattern 3 by the long sides that draw the meander pattern. Similarly, it is the long side that draws the meander pattern that reaches each of the open ends 16a and 16b. As a result, the bending strength of the first radiation pattern 2a and the second radiation pattern 2b at the root portions of the open ends 16a and 16b is increased, and the meander-shaped first radiation pattern 2a and the second radiation pattern 2b having a relatively narrow line width. Bears bending and twisting, and the fear that the first radiation pattern 2a and the second radiation pattern 2b are disconnected in the washing process can be reduced.
　以上のように、このＲＦＩＤタグ１０ｂでは、連接パターン３の線幅を広くすると共に、第１放射パターン２ａの開放端１６ａおよび第２放射パターン２ｂの開放端１６ｂに幅広部をそれぞれ設けている。また、第１放射パターン２ａ及び第２放射パターン２ｂのミアンダパターンと、連接パターン３、開放端１６ａ、１６ｂの幅広部の各々とをミアンダパターンの短辺で接続している。これにより、ＲＦＩＤタグ１０ｂの電気特性を阻害することなく、且つ、大型化を招くことなく、応力（主に捩り）によるＲＦＩＣ素子１の脱落やアンテナ素子７の断線などの接続不良が生じる懸念を軽減することができる。 As described above, in the RFID tag 10b, the line width of the connection pattern 3 is widened, and wide portions are provided at the open end 16a of the first radiation pattern 2a and the open end 16b of the second radiation pattern 2b. Further, the meander pattern of the first radiation pattern 2a and the second radiation pattern 2b is connected to the connecting pattern 3 and each of the wide portions of the open ends 16a and 16b by the short side of the meander pattern. As a result, there is a concern that connection failure such as dropping of the RFIC element 1 due to stress (mainly torsion) or disconnection of the antenna element 7 may occur without impeding the electrical characteristics of the RFID tag 10b and without causing an increase in size. Can be reduced.
（実施の形態４）
　図９Ａは、実施の形態４に係るＲＦＩＤタグ１０ｃの構成を示す平面図である。図９Ｂは、実施の形態４の変形例に係るＲＦＩＤタグ１０ｄの構成を示す平面図である。
　このＲＦＩＤタグ１０ｃ、１０ｄは、実施の形態１に係るＲＦＩＤタグと対比すると、フレキシブルであるものの、第１放射パターン２ａ及び第２放射パターン２ｂよりも伸び縮みしにくい部材、たとえば布１８、１８ａをアンテナ素子７の全面（図９Ａ）又は部分的（図９Ｂ）に貼り付けている点で相違する。なお、アンテナ素子７への布１８、１８ａの取り付けは、貼り付ける場合に限られず、縫い込み、あるいはホットメルト（裏打ち）であってもよい。この布１８、１８ａをアンテナ素子７に取り付けることで、アンテナ素子７が縮んでしまったときに第１放射パターン２ａ及び第２放射パターン２ｂの一部同士が接触することを抑制できる。また、連接パターン３と第１放射パターン２ａ及び第２放射パターン２ｂとが接触することを抑制できる。これによって、連接パターン３と第１放射パターン２ａ及び第２放射パターン２ｂとの接触でアンテナの電気長が短くなってしまうことを抑制できるので、利得の低下を抑制できる。
　なお、布１８，１８ａは、織布あるいは不織布のいずれであってもよい。また、布１８，１８ａは、第１接続パターン４ａ、第２接続パターン４ｂおよび連接パターン３にて形成されたループ状の整合部を両面から挟み込むように設けておくことが好ましい。 (Embodiment 4)
FIG. 9A is a plan view showing the configuration of the RFID tag 10c according to the fourth embodiment. FIG. 9B is a plan view showing a configuration of an RFID tag 10d according to a modification of the fourth embodiment.
The RFID tags 10c and 10d are flexible compared to the RFID tag according to the first embodiment, but members that are less likely to expand and contract than the first radiation pattern 2a and the second radiation pattern 2b, such as cloths 18 and 18a, are used. The difference is that the antenna element 7 is attached to the entire surface (FIG. 9A) or partially (FIG. 9B). In addition, attachment of the cloths 18 and 18a to the antenna element 7 is not limited to the case of attaching, but may be sewn or hot melt (lining). By attaching the cloths 18 and 18a to the antenna element 7, when the antenna element 7 is contracted, it is possible to prevent a part of the first radiation pattern 2a and the second radiation pattern 2b from contacting each other. Moreover, it can suppress that the connection pattern 3 and the 1st radiation pattern 2a and the 2nd radiation pattern 2b contact. As a result, it is possible to suppress the electrical length of the antenna from being shortened due to the contact between the connection pattern 3 and the first radiation pattern 2a and the second radiation pattern 2b, so that a decrease in gain can be suppressed.
The fabrics 18 and 18a may be either woven fabric or non-woven fabric. Moreover, it is preferable that the cloths 18 and 18a are provided so as to sandwich the loop-shaped matching portion formed by the first connection pattern 4a, the second connection pattern 4b, and the connection pattern 3 from both sides.
　なお、本開示においては、前述した様々な実施の形態のうちの任意の実施の形態を適宜組み合わせることを含むものであり、それぞれの実施の形態が有する効果を奏することができる。 It should be noted that the present disclosure includes appropriately combining any of the above-described various embodiments, and can provide the effects of the respective embodiments.
　本発明に係る無線通信デバイスによれば、第１放射パターンと第２放射パターンとを連接する連接パターンと、連接パターンの互いに離れた２箇所からそれぞれ分岐し、ＲＦＩＣ素子の入出力端子と接続する第１及び第２端部に至る第１及び第２接続パターンとを有する。そこで、洗濯時等に加わる応力は、連接パターンに加わるものの、連接パターンから分岐した第１及び第２接続パターンには伝達しにくく、ＲＦＩＣ素子と第１及び第２接続パターンとの接続部の損傷が生じにくい。さらに、第１及び第２接続パターンは、延在方向が反転する折返し部分を有する。第１及び第２接続パターンの折り返し部分によって、ねじり変形等を伴う応力を受けた場合にも、応力は、第１及び第２接続パターンの折り返し部分の変形で吸収される。これによって、応力は、ＲＦＩＣ素子との接続箇所の第１端部及び第２端部には及びにくく、ＲＦＩＣ素子と第１及び第２接続パターンとの接続箇所の損傷の発生を抑制できる。そこで、通常より大きなねじり変形を伴う応力を受ける物品に取り付ける無線通信デバイスとして有用である。 According to the wireless communication device of the present invention, the connection pattern for connecting the first radiation pattern and the second radiation pattern and the connection pattern are branched from two positions separated from each other, and connected to the input / output terminal of the RFIC element. And first and second connection patterns reaching the first and second end portions. Therefore, although stress applied during washing or the like is applied to the connection pattern, it is difficult to transmit to the first and second connection patterns branched from the connection pattern, and the connection portion between the RFIC element and the first and second connection patterns is damaged. Is unlikely to occur. Furthermore, the first and second connection patterns have folded portions where the extending direction is reversed. Even when a stress accompanied by torsional deformation or the like is received by the folded portions of the first and second connection patterns, the stress is absorbed by the deformation of the folded portions of the first and second connection patterns. Thus, the stress hardly reaches the first end and the second end of the connection portion with the RFIC element, and the occurrence of damage at the connection portion between the RFIC element and the first and second connection patterns can be suppressed. Therefore, the present invention is useful as a wireless communication device that is attached to an article that is subjected to stress accompanied by a larger torsional deformation.
１　ＲＦＩＣ素子
２ａ　第１放射パターン
２ｂ　第２放射パターン
３、３ａ　連接パターン
４ａ　第１接続パターン
４ｂ　第２接続パターン
５ａ、５ｂ　端部
６ａ、６ｂ　開放端
７、７ａ　アンテナ素子
８ａ、８ｂ　分岐箇所
９ａ、９ｂ　折り返し部分
１０、１０ａ、１０ｂ、１０ｃ、１０ｄ　ＲＦＩＤタグ
１１　ＲＦＩＣチップ
１２　整合回路
１３ａ、１３ｂ　入出力端子
１６ａ、１６ｂ　開放端
１７ａ、１７ｂ　丸み
２０　ＲＦＩＤタグ付きランドリー物品
２２　衣類（ランドリー物品）
３０　ＲＦＩＤタグ DESCRIPTION OF SYMBOLS 1 RFIC element 2a 1st radiation pattern 2b 2nd radiation pattern 3, 3a Connection pattern 4a 1st connection pattern 4b 2nd connection pattern 5a, 5b End part 6a, 6b Open end 7, 7a Antenna element 8a, 8b Branch location 9a, 9b Folded portion 10, 10a, 10b, 10c, 10d RFID tag 11 RFIC chip 12 Matching circuits 13a, 13b Input / output terminals 16a, 16b Open ends 17a, 17b Round 20 Laundry article 22 with RFID tag 22 Clothes (laundry article)
30 RFID tags

Claims (11)

  1. 　第１及び第２の入出力端子を有するＲＦＩＣ素子と、
    　前記第１及び第２の入出力端子に接続されたアンテナ素子と、
    を備え、
    　前記アンテナ素子は、
    　　第１放射パターンと、第２放射パターンと、を含む放射部と、
    　　前記第１放射パターンと前記第２放射パターンとを連接する連接パターンと、前記連接パターンの互いに離れた２箇所からそれぞれ分岐し、前記第１及び第２の入出力端子と接続する第１及び第２端部に至る第１及び第２接続パターンと、を含む整合部と、
    を有し、
    　前記第１接続パターンは、前記連接パターンと前記第１端部との間に延在方向が反転する折返し部分を有し、第２接続パターンは、前記連接パターンと前記第２端部との間に延在方向が反転する折返し部分を有する、無線通信デバイス。     An RFIC element having first and second input / output terminals;
    An antenna element connected to the first and second input / output terminals;
    With
    The antenna element is
    A radiation portion including a first radiation pattern and a second radiation pattern;
    A connection pattern that connects the first radiation pattern and the second radiation pattern, and a first and a second that branch from the two distant locations of the connection pattern, respectively, and that are connected to the first and second input / output terminals. A matching portion including first and second connection patterns reaching two ends;
    Have
    The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. A wireless communication device having a folded portion whose extending direction is reversed.
  2. 　前記連接パターンは、前記第１放射パターン又は前記第２放射パターンの線幅より広い線幅を有する、請求項１に記載の無線通信デバイス。 The wireless communication device according to claim 1, wherein the connection pattern has a line width wider than that of the first radiation pattern or the second radiation pattern.
  3. 　前記アンテナ素子は、弾性を有する材料からなる、請求項１又は２に記載の無線通信デバイス。 The wireless communication device according to claim 1 or 2, wherein the antenna element is made of an elastic material.
  4. 　前記アンテナ素子は、金属膜または金属体で構成されている、請求項１から３のいずれか一項に記載の無線通信デバイス。 The wireless communication device according to any one of claims 1 to 3, wherein the antenna element is formed of a metal film or a metal body.
  5. 　前記アンテナ素子は、連続する金属体で構成されている、請求項４に記載の無線通信デバイス。 The wireless communication device according to claim 4, wherein the antenna element is formed of a continuous metal body.
  6. 　前記第１放射パターン及び前記第２放射パターンは、前記連接パターンの延在方向に沿って延びるミアンダ状である、請求項１から５のいずれか一項に記載の無線通信デバイス。 The wireless communication device according to any one of claims 1 to 5, wherein the first radiation pattern and the second radiation pattern have a meander shape extending along an extending direction of the connection pattern.
  7. 　前記第１放射パターン及び前記第２放射パターンの開放端の線幅は、他の部分の線幅よりも太い、請求項１から６のいずれか一項に記載の無線通信デバイス。 The wireless communication device according to any one of claims 1 to 6, wherein a line width of an open end of the first radiation pattern and the second radiation pattern is thicker than a line width of other portions.
  8. 　前記ＲＦＩＣ素子は、ＲＦＩＣチップと、前記ＲＦＩＣチップに接続された整合回路と、を含むＲＦＩＣパッケージとして構成され、
    　前記整合回路と、前記整合部とによって、通信周波数に相当する共振周波数を画定する、請求項１から７のいずれか一項に記載の無線通信デバイス。     The RFIC element is configured as an RFIC package including an RFIC chip and a matching circuit connected to the RFIC chip,
    The wireless communication device according to claim 1, wherein a resonance frequency corresponding to a communication frequency is defined by the matching circuit and the matching unit.
  9. 　第１放射パターン及び第２放射パターンよりも伸び縮みしにくい部材であって、前記アンテナ素子の少なくとも一部を覆う部材をさらに備える、請求項１から８のいずれか一項に記載の無線通信デバイス。 The wireless communication device according to any one of claims 1 to 8, further comprising a member that is less likely to expand and contract than the first radiation pattern and the second radiation pattern and covers at least a part of the antenna element. .
  10. 　洗濯又はクリーニングを受けるランドリー物品と、
    　前記ランドリー物品に付される無線通信デバイスであって、
    　　第１及び第２の入出力端子を有するＲＦＩＣ素子と、
    　　前記第１及び第２の入出力端子に接続されたアンテナ素子であって、
    　　　第１放射パターンと、第２放射パターンと、前記第１放射パターンと前記第２放射パターンとを連接する連接パターンと、を含む放射部と、
    　　　前記連接パターンの互いに離れた２箇所からそれぞれ分岐し、前記第１及び第２の入出力端子と接続する第１及び第２端部に至る第１及び第２接続パターンと、前記連接パターンとにより形成された整合部と、
    を有するアンテナ素子と、
    を備え、
    　　前記第１接続パターンは、前記連接パターンと前記第１端部との間に延在方向が反転する折返し部分を有し、第２接続パターンは、前記連接パターンと前記第２端部との間に延在方向が反転する折返し部分を有する、無線通信デバイスと、
    を備えた無線通信デバイス付きランドリー物品。     Laundry items to be washed or cleaned; and
    A wireless communication device attached to the laundry article,
    An RFIC element having first and second input / output terminals;
    An antenna element connected to the first and second input / output terminals,
    A radiation part including a first radiation pattern, a second radiation pattern, and a connection pattern that connects the first radiation pattern and the second radiation pattern;
    First and second connection patterns that branch from the two distant locations of the connection pattern and reach the first and second ends connected to the first and second input / output terminals, and the connection pattern, A formed alignment portion; and
    An antenna element having
    With
    The first connection pattern has a folded portion whose extending direction is reversed between the connection pattern and the first end, and the second connection pattern is between the connection pattern and the second end. A wireless communication device having a folded portion whose extending direction is reversed to
    Laundry goods with wireless communication device.
  11. 　前記無線通信デバイスは、布地に貼り付けられて、前記ランドリー物品に付されている、請求項１０に記載の無線通信デバイス付きランドリー物品。 The laundry article with a wireless communication device according to claim 10, wherein the wireless communication device is attached to a cloth and attached to the laundry article.
PCT/JP2016/070321 2015-07-22 2016-07-08 Wireless communication device and laundry item equipped with wireless communication device WO2017014078A1 (en)

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WO2009110382A1 (en) * 2008-03-03 2009-09-11 株式会社村田製作所 Composite antenna

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US7374102B2 (en) * 2004-05-14 2008-05-20 Wavezero, Inc. Radiofrequency antennae and identification tags and methods of manufacturing radiofrequency antennae and radiofrequency identification tags
JP5149681B2 (en) * 2008-04-18 2013-02-20 ルネサスエレクトロニクス株式会社 RFID inlet
JP2010026886A (en) * 2008-07-23 2010-02-04 Panasonic Corp Article with radio frequency identification tag and radio frequency identification tag
JP5718123B2 (en) * 2011-03-30 2015-05-13 富士通株式会社 RFID tag

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JP2007018487A (en) * 2005-06-07 2007-01-25 Hitachi Chem Co Ltd Ic tag
JP2008009801A (en) * 2006-06-30 2008-01-17 Renesas Technology Corp Method for producing rfid inlet
WO2009110382A1 (en) * 2008-03-03 2009-09-11 株式会社村田製作所 Composite antenna

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