WO2020175659A1 - Article de type bande - Google Patents

Article de type bande Download PDF

Info

Publication number
WO2020175659A1
WO2020175659A1 PCT/JP2020/008185 JP2020008185W WO2020175659A1 WO 2020175659 A1 WO2020175659 A1 WO 2020175659A1 JP 2020008185 W JP2020008185 W JP 2020008185W WO 2020175659 A1 WO2020175659 A1 WO 2020175659A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil conductor
band
main surface
conductor portion
coil
Prior art date
Application number
PCT/JP2020/008185
Other languages
English (en)
Japanese (ja)
Inventor
昌良 山本
Original Assignee
株式会社村田製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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
Publication of WO2020175659A1 publication Critical patent/WO2020175659A1/fr

Links

Classifications

    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material

Definitions

  • the present invention generally relates to a band-type article, and more particularly to a band-type article provided with an antenna device.
  • Patent Document 1 discloses a wristband type information terminal (band type article) including an antenna device.
  • the information terminal described in Patent Document 1 includes an antenna device, a main body portion, and a belt portion.
  • the antenna device has a feeding coil (coil conductor).
  • the feeding coil is a flat coil and is housed in the main body.
  • Patent Document 1 International Publication No. 2 0 1 6/1 3 2 6 5 4
  • the present invention has been made in view of the above points, and an object of the present invention is a band type capable of improving communication characteristics in a wide angle range between an antenna device and a partner antenna device. To provide goods.
  • a band type article includes: an antenna device; a main body portion; ⁇ 2020/175659 2 ⁇ (:171? 2020 /008185
  • the main body portion accommodates the antenna device.
  • the band part is attached to the body part along a first direction.
  • the antenna device includes a coil conductor and a magnetic body.
  • the coil conductor has a first coil conductor portion and a second coil conductor portion.
  • the magnetic body has a first main surface and a second main surface.
  • the first coil conductor portion is provided on the first main surface with respect to the magnetic body.
  • the second coil conductor portion is not provided on the first main surface with respect to the magnetic body.
  • the first coil conductor portion does not overlap with the second coil conductor portion.
  • the first coil conductor portion and the second coil conductor portion face each other in the first direction.
  • FIG. 18 is a plan view of a band type article according to the first embodiment.
  • FIG. 1 is a sectional view of the band-shaped article of the above, taken along line X 1 -X 1.
  • Figure 10 is a schematic diagram of the band type article when used.
  • FIG. 2 is a schematic view of the band-shaped article of the above.
  • FIG. 38 is a plan view of the antenna device for a band-shaped article of the above.
  • Figure 3 is a cross-sectional view of the antenna device taken along line X2--X2.
  • FIG. 48 is a perspective view showing the arrangement of the antenna device and the counterpart antenna device of the above.
  • FIG. 4 is a plan view showing the arrangement of the above antenna device and the counterpart antenna device.
  • FIG. 5 is a graph showing the characteristic of the coupling degree between the antenna device of the band type article and the counterpart antenna device.
  • FIG. 6 Fig. 68 to Fig. 60 are schematic views showing a usage pattern of the band-shaped article of the above.
  • FIG. 7 is a schematic view of a band-shaped article according to a first modification of the first embodiment. 20/175659 3 ⁇ (: 171? 2020 /008185
  • FIG. 8 is a schematic view of a band-shaped article according to a second modification of the first embodiment.
  • FIG. 8 is a schematic diagram of a band-shaped article according to Modification 3 of Embodiment 1.
  • FIG. 80 is a schematic diagram of a band-shaped article according to Modification 4 of Embodiment 1.
  • FIG. 9 is a schematic view of a band-shaped article according to Modification 5 of Embodiment 1.
  • FIG. 9 is a schematic diagram of a band-shaped article according to Modification 6 of Embodiment 1.
  • FIG. 10 is a schematic view of a band-shaped article according to Modification 7 of Embodiment 1.
  • FIG. 11 is a schematic view of a band type article according to a modified example 8 of the first embodiment. 11 is a schematic diagram of a band-shaped article according to Modification 9 of Embodiment 1. FIG. 11
  • FIG. 12 is a schematic view of a band type article according to a modified example 10 of the first embodiment.
  • FIG. 13 is a plan view of the antenna device for a band-shaped article of the above.
  • FIG. 13 is a cross-sectional view of the antenna device of the above, taken along line X 21 — X 21.
  • FIG. 14 is a plan view of an antenna device for a band-type article according to a modified example 11 of the first embodiment.
  • FIG. 14 is a plan view of the antenna device for a band-type article according to the modified example 12 of the first embodiment.
  • FIG. 15 is a plan view of an antenna device for a band-type article according to a modified example 13 of the first embodiment.
  • FIG. 15 is a plan view of the antenna device for a band-type article according to the modification 14 of the first embodiment.
  • FIG. 16 is a schematic view of a band type article according to a modified example 15 of the first embodiment.
  • FIG. 17 is a schematic view of a band type article according to the second embodiment.
  • FIG. 17 is a schematic view of a band type article according to a modified example of the second embodiment.
  • Fig. 188 is a plan view of the antenna device for a band-shaped article of the above.
  • Figure 18 is a cross-sectional view of the antenna device of the above, taken along line X3-X3.
  • FIG. 19 is a plan view of the band type article according to the third embodiment.
  • FIG. 19: No. 9 is a cross-sectional view of the band type article taken along line X4--X4 of the above.
  • FIGS. 20A to 20C are schematic views showing magnetic flux in the band-shaped article of the above.
  • FIG. 21A is a schematic view of the band-shaped article of the above. 21.
  • FIG. 21 is a schematic view of the band-shaped article according to the modification 1 of the third embodiment.
  • FIG. 21C is a schematic view of a band-shaped article according to Modification 2 of Embodiment 3.
  • the “antenna device” is an antenna device used in a "wireless transmission system".
  • the “wireless transmission system” is a system that performs wireless transmission by magnetic field coupling with the transmission partner (antenna of external device).
  • Transmission includes both transmission and reception of signals and transmission and reception of power.
  • Wireless transmission system includes both short-range wireless communication systems and wireless power supply systems. Since the antenna device performs wireless transmission by magnetic field coupling, the length of the current path of the antenna device, that is, the line length of the coil conductor described later, is sufficiently smaller than the wavelength S at the frequency used for wireless transmission. It is the following. Therefore, the radiation efficiency of electromagnetic waves is low in the frequency band used for wireless transmission.
  • the wavelength referred to here is an effective wavelength considering the wavelength shortening effect due to the dielectric properties and magnetic permeability of the base material on which the coil conductor is provided. Both ends of the coil conductor are connected to a feeding circuit, and a current of almost uniform magnitude flows through the current path of the antenna device, that is, the coil conductor.
  • the near field communication used in the "antenna device" is, for example, NFC (Near Field Communication).
  • the frequency band used for short-distance wireless communication is, for example, the HF band, particularly the frequency band of 13.5 6 MHz and its vicinity.
  • a wireless power feeding method used in the "antenna device" there are magnetic field coupling methods such as an electromagnetic induction method and a magnetic field resonance method.
  • a wireless power feeding standard of the electromagnetic induction system for example, there is a standard “Q i (registered trademark)” established by WPC (Wireless Power Consortium).
  • the frequency band used in the electromagnetic induction method is included in, for example, a range of 110 kHz to 205 kHz and a frequency band in the vicinity of the above range.
  • a wireless power feeding standard of the magnetic field resonance method there is, for example, a standard “Air Fuel Resonant” established by Air Fue I (registered trademark) Alliance.
  • the frequency band used in the magnetic field resonance method is, for example, the 6.78 MHz band or the 100 kHz band.
  • the band type article 1 includes an antenna device 2, a main body section 31 and a band section 32.
  • the band-shaped article 1 further includes a printed wiring board 11, a battery 12, and a display 13 as members including at least a conductor.
  • the band-shaped article 1 is, for example, a wristwatch such as a smart watch.
  • the band type article 1 may be a smart band such as an activity meter.
  • FIGS. 1A and 1B shows the case where the band-shaped article 1 is a wristwatch.
  • the antenna device 2 includes a base material 4, a coil conductor 5, and a magnetic body 6, as shown in FIGS. 2, 3A, and 3B.
  • the magnetic body 6 has a rectangular plate shape or a rectangular sheet shape, and has a first main surface 61 and a second main surface 62. Magnetic material 6 , Having a higher magnetic permeability than the base material 4 and the protective layer (not shown).
  • the material of the magnetic body 6 is a ferromagnetic material such as ferrite.
  • the material of the magnetic body 6 include a sintered body ferrite, an amorphous magnetic body, and a magnetic sheet.
  • ferromagnetic materials used for the magnetic body 6 include Mn _Z n _F e based ferrites and N i -Z n -Fe based ferrites.
  • the base material 4 is formed in a plate shape or a sheet shape and has a first main surface 41 and a second main surface 42.
  • the first main surface 41 and the second main surface 42 face each other in the thickness direction of the base material 4 (second direction D 2 ).
  • the base material 4 is large enough to have the coil conductor 5 provided thereon.
  • the material of the base material 4 is, for example, an electrically insulating material such as resin.
  • the electrically insulating material used for the base material 4 include polyimide, PET (Poly Ethylene Terep hthalate: polyethylene terephthalate), and Liquid Crystal Polymer (LC P).
  • the coil conductor 5 is provided on the base material 4, as shown in FIGS. 3A and 3B. More specifically, the coil conductor 5 is provided on the first main surface 41 of the base material 4. The coil conductor 5 is provided on the first main surface 41 of the base material 4 by forming a copper film or an aluminum film on the first main surface 41 of the base material 4 by etching or printing, for example.
  • the coil conductor 5 has a rectangular shape (square shape in the example of FIG. 3A) and has a first coil conductor portion 51, a second coil conductor portion 52, and two coil conductor portions 50. It The first coil conductor portion 51 has a plurality of (four in the illustrated example) first conductor portions. The second coil conductor portion 52 has a plurality (four in the illustrated example) of second conductor portions. Each coil conductor portion 50 has a plurality of (four in the illustrated example) conductor portions.
  • the first coil conductor portion 5 1 and the second coil conductor portion 52 are integrally provided via the coil conductor portion 50, and the first coil conductor portion 5 1, the second coil conductor portion 52, and the two coil conductors Part 50 and one spiral coil conductor 5 ⁇ 2020/175659 7 units (:171? 2020 /008185. That is, the conductor portion of the first coil conductor portion 5 1 and the conductor portion of the second coil conductor portion 5 2 are connected in order. ..
  • the first coil conductor portion 5 1 is provided on the first main surface 61 with respect to the magnetic body 6.
  • “the first coil conductor portion 5 1 is provided on the first main surface 6 1 with respect to the magnetic body 6” means that the first coil conductor portion 5 1 is It is provided on the main surface 61 side, and the first coil conductor portion 5 1 is provided so as to overlap the first main surface 6 1 in a plan view of the first main surface 61 ”.
  • the first coil conductor part 5 1 is provided on the first main surface 61 side with respect to the magnetic body 6 ”means that the first coil conductor part 5 1 is more It is provided close to the main surface 61.” In this case, the first main surface 6 1 exists between the first coil conductor portion 5 1 and the second main surface 6 2 in the second direction 0 2.
  • the second coil conductor portion 52 is provided on the second main surface 62 with respect to the magnetic body 6.
  • the second coil conductor portion 52 is provided on the second main surface 62 with respect to the magnetic body 6
  • the second coil conductor portion 52 is second with respect to the magnetic body 6. It is provided on the main surface 62 side, and in the plan view of the first main surface 61, the second coil conductor portion 52 is provided so as to overlap the second main surface 62.”
  • the second coil conductor portion 52 is provided on the side of the second main surface 62 with respect to the magnetic body 6 ”means that the second coil conductor portion 52 is located closer to the second main surface 61 than the first main surface 61. It is provided close to the main surface 62.” In this case, the second main surface 62 exists between the second coil conductor portion 52 and the first main surface 61 in the second direction 02.
  • the coil conductor 52 overlaps with the magnetic body 6.
  • the first coil conductor portion 51 is in a position not overlapping the second coil conductor portion 52.
  • the plurality of conductor portions forming the first coil conductor portion 5 1 and the plurality of conductor portions forming the second coil conductor portion 5 2 are seen in a plan view of the first main surface 6 1 of the magnetic body 6. , Do not overlap each other.
  • the coil conductor 5 has a coil opening 53. Coil conductor 5 is in the second direction 0
  • the coil conductor 5 is provided on the base material 4 in a state of being wound four times.
  • materials for the coil conductor 5 include copper and aluminum.
  • the coil conductor 5 may be a two-dimensional coil conductor or a three-dimensional coil conductor.
  • a two-dimensional coil conductor is a coil conductor having a shape such that it is spirally wound a plurality of times around a winding axis on one plane.
  • a three-dimensional coil conductor is a coil conductor having a shape in which it is spirally wound a plurality of times around the winding axis along the winding axis.
  • Fig. 38 and Fig. 3 show the coil conductor of the secondary element.
  • the main body portion 31 accommodates the antenna device 2 as shown in FIGS. 18, 18 and 2. More specifically, the main body portion 31 has a tubular portion 33 and a plate-shaped bottom portion 34. The cylindrical portion 33 has an internal space 35. The bottom portion 34 is provided so as to close one opening of the tubular portion 33. The main body 31 houses the antenna device 2 in the internal space 35. In the first embodiment, the tubular portion 33 and the bottom portion 34 are integrally formed. In the present application, the main body portion is a portion having a function of “holding the antenna device”.
  • the band portion 32 is elongated as shown in FIGS. 18 and 1, and is attached to the main body portion 31 along the first direction opening 1. In the first embodiment, the band portion 32 is separate from the main body portion 31. When the band-shaped article 1 is attached to the arm 9, the band portion 32 is wound so as to contact the arm 9 (see FIG. 10).
  • the band part is a part having a function of “wound so as to be in contact with an object”, and an example of the object on which the band part is wound is a human arm. Further, in the present application, “arm” also includes a wrist portion.
  • the printed wiring board 11 and the battery 12 are connected to the antenna device 2 on the communication surface side in the direction (second direction 0 2) orthogonal to the first main surface 6 1 of the magnetic body 6.
  • the antenna device 2 Located on the side opposite to (Display 1 3 side) (Bottom 3 4 side) ⁇ 2020/175659 9 ⁇ (: 171-1?2020/008185
  • the printed wiring board 11 has a conductive ground portion.
  • the ground portion of the printed wiring board 11 corresponds to "a conductor located on the side opposite to the communication surface side with respect to the antenna device 2 in the direction orthogonal to the first main surface 61 of the magnetic body 6". 2 shows that all of the printed wiring board 11 is made of resin, but in reality, as described above, the printed wiring board 11 has a ground portion.
  • the battery 12 includes a battery case having conductivity.
  • the material of the battery case is a conductor such as metal.
  • the battery case of the battery 12 corresponds to "a conductor located on the side opposite to the communication surface side with respect to the antenna device 2 in the direction orthogonal to the first main surface 61 of the magnetic body 6". Note that, in FIG. 2, all of the batteries 12 are shown to be made of metal, but in reality, as described above, the battery case of the battery 12 is made of metal.
  • the display 13 is provided so as to close the opening of the main body 31. More specifically, the display 13 is provided on the side opposite the bottom 34. In other words, the display 13 is provided on the opposite side of the body 9 from the arm 9 when the band-shaped article 1 is attached to the arm 9 (see FIG. 1 (3)). 3 is configured to display predetermined information Note that although the display 13 is shown as a transparent material in Fig. 2, it actually includes various members other than the transparent material.
  • the first coil conductor portion 5 1 and the second coil conductor portion 5 2 at the first direction opening 1 are , Face each other. That is, in a plan view of the first main surface 61 of the magnetic body 6, in the longitudinal direction of the band portion 32 (first direction mouth 1), the first coil conductor portion 5 1 and the second coil conductor portion 5 2 are Face each other.
  • the main body 3 1 is a coil conductor in a plan view of the first main surface 61 of the magnetic body 6.
  • the antenna device 2 is housed so that the center of gravity of the coil opening 5 3 of 5 (center of gravity of the coil conductor 5) deviates from the center of gravity of the main body 31.
  • the weight of the coil conductor ⁇ 2020/175659 10 boxes (:171? 2020 /008185
  • the center is located in the facing port 1 1 1 with respect to the center of gravity of the main body 3 1. That is, the center of gravity of the coil conductor 5 is located on the left side of the center of gravity of the main body 31. In this case, good antenna characteristics can be obtained when the partner antenna device 8 is located on the direction 0 12 side of the antenna device 2.
  • the second coil conductor portion 52 is located closer to the arm 9 than the magnetic body 6 when the band-shaped article 1 is wound around the arm 9 (see FIG. 10). In other words, when the band-shaped article 1 is wound around the arm 9, the second coil conductor portion 52 is separated from the magnetic body 6 and the arm 9 in the second direction 0 2 orthogonal to the first main surface 6 1. Located between.
  • the first coil conductor portion 51 is located closer to the thumb 92 than the second coil conductor portion 52 when the band-shaped article 1 is wound around the arm 9.
  • the first coil conductor portion 51 is located closer to the thumb 9 2 than the little finger 9 1 when the band-shaped article 1 is wound around the arm 9.
  • the second coil conductor portion 52 is located closer to the little finger 91 than the first coil conductor portion 51 when the band-shaped article 1 is wound around the arm 9.
  • the second coil conductor portion 52 is located closer to the little finger 91 than the thumb 92 when the band-shaped article 1 is wound around the arm 9.
  • the arm 9 can be rotated in the direction in which the antenna device 2 can obtain good antenna characteristics.
  • the operation of the antenna device 2 according to the first embodiment will be described with reference to FIGS. 4, 4, and 5.
  • Fig. 48 and Fig. 4 the operation of the antenna device 2 when the partner coil conductor 8 1 of the partner antenna device 8 that is the communication partner of the antenna device 2 is located parallel to the coil conductor 5 explain.
  • the characteristic in Fig. 5 is that the coil conductor is in the direction in which the first coil conductor part 5 1 and the second coil conductor part 52 are aligned, that is, in the first direction port 1 (X-axis direction). ⁇ 02020/175659 11 ⁇ (: 17 2020/008185
  • ⁇ _ 1
  • the coupling coefficient becomes maximum. That is, the maximum value of the coupling coefficient is 15 5 from the center of gravity of the main body 3 1. It is in a remote location. More specifically, when the center of gravity of the coil opening 8 2 of the opposite coil conductor 8 1 is located on the side opposite to the center of gravity of the coil opening 5 3 of the coil conductor 5 with respect to the center of gravity of the body 31 The coefficient becomes maximum.
  • FIG. 68 shows that the coil conductor 5 of the antenna device 2 in the band-shaped article 1 corresponds to the counterpart antenna device 8.
  • Fig. 6 shows the usage when it is parallel to the counterpart coil conductor 8 1.
  • Fig. 6 shows the coil conductor 5 of the antenna device 2 and the counterpart coil conductor 8 1 of the counterpart antenna device 8 in the band type article 1.
  • Fig. 6 ( 3 shows the coil conductor 5 of the antenna device 2 and the partner coil conductor 8 1 of the partner antenna device 8 in the band type article 1 when the angle is 45 degrees.
  • the usage pattern is shown when the contact angle is 90 degrees.
  • the magnetic flux 0 1 generated by the current flowing in the counterpart coil conductor 8 1 of the counterpart antenna device 8 is the magnetic flux 0 1 generated in the coil opening 5 3 of the coil conductor 5.
  • the inside of the magnetic body 6. when the angle formed by the coil conductor 5 of the antenna device 2 and the partner coil conductor 81 of the partner antenna device 8 is at least 0° and 90° or less, the antenna device 2 and the partner antenna device 8 are Good communication can be performed between them. In other words, no matter which angle the arm 9 has with respect to the partner antenna device 8 (ranging from 0 degrees to 90 degrees), good communication is achieved between the antenna device 2 and the partner antenna device 8. Communication performance can be maintained.
  • the above usage pattern is an example of the usage pattern of the band-shaped article 1, and the band-shaped article 1 may be used in other usage patterns. ⁇ 2020/175659 12 boxes (:171? 2020 /008185
  • the first coil conductor portion 5 1 and the second coil conductor 5 1 are attached in the state in which the band portion 3 2 is attached along the first direction opening 1 along the main body portion 3 1.
  • the portion 52 and the portion 52 face each other in the first direction 0 1.
  • communication characteristics can be improved in a wide angle range between the antenna device 2 and the partner antenna device 8.
  • the main body 31 houses the antenna device 2 so that the center of gravity of the coil conductor 5 deviates from the center of gravity of the main body 31.
  • the position where the coupling coefficient between the coil conductor 5 of the antenna device 2 and the partner coil conductor 8 1 of the partner antenna device 8 becomes maximum is separated from the center of gravity of the body part 31 by the body part 31.
  • the antenna device 2 is
  • the one-way port 1 may be located on the opposite side of the example of FIG. More specifically, the main body 31 is positioned such that the center of gravity of the coil conductor 5 is displaced from the center of gravity of the main body 31 in the facing port 12 in plan view of the first main surface 61 of the magnetic body 6.
  • the antenna device 2 may be housed. That is, the main body 31 may house the antenna device 2 such that the center of gravity of the coil conductor 5 is displaced to the right of the center of gravity of the main body 31. In this case, good antenna characteristics can be obtained when the partner antenna device 8 is located on the direction 0 1 1 side of the antenna device 2.
  • the band-shaped article 1 may further include a conductive member 14 as shown in FIG.
  • the conductive member 14 is made of metal, for example.
  • the conductive member 14 is a mechanical part of the timepiece.
  • the mechanical part of the watch is ⁇ 2020/175659 13 ⁇ (:171? 2020/008185
  • the mechanical part of the timepiece corresponds to “a conductor located on the side opposite to the communication surface side with respect to the antenna device 2 in the direction orthogonal to the first main surface 61 of the magnetic body 6 ”.
  • the conductive member 14 is provided adjacent to the battery 12 at the first direction port 1. In the example of Fig. 8, the battery 12 and the conductive member 14 are provided between the antenna device 2 and the printed wiring board 11 in the direction orthogonal to the first main surface 61 of the magnetic body 6. ing.
  • the antenna device 2 has the main body in a direction orthogonal to the first main surface 61 of the magnetic body 6. It may be provided between the bottom portion 34 of the portion 31 and the battery 12.
  • the display 13 is a conductor having a high resistivity like an organic semiconductor display, and the printed wiring board 11 or the battery 12 has a planar conductive member, the display 13!
  • the presence of the printed wiring board 11 or the battery 12 between the antenna device 2 and the antenna device 2 can reduce the characteristic deterioration of the antenna device 2 due to the display 13.
  • a conductive member different from the printed wiring board 11 and the battery 12 may be provided between the coil conductor 5 and the display 13.
  • the conductive member is, for example, copper foil. Even in such a case, the presence of the conductive member between the display 13 and the antenna device 2 can reduce the characteristic deterioration of the antenna device 2 due to the display 13.
  • the material of the main body 31 is not limited to an insulator such as a resin but a conductor such as a metal. Good.
  • the material of the main body 31 is metal.
  • the bottom part 34 of the main body part 31 is composed of a plurality of slits (two in the illustrated example). May have. Each slit 3 41 is filled with resin 3 4 2.
  • the band type article 1 may include a main body portion 31 as shown in FIG.
  • the main body 31 of Modification 7 has a cylindrical casing 36 and a plate-like lid 37.
  • the housing 36 has an internal space 35.
  • the lid 3 7 ⁇ 2020/175659 14 ⁇ (: 171-1? 2020 /008185
  • the housing 36 and the lid 37 are separate bodies.
  • the material of the housing 36 is resin
  • the material of the lid 37 is metal.
  • the material of the housing 36 may be an insulator other than resin or a conductor such as metal.
  • the material of the lid 37 may be a conductor other than metal, or may be an insulator such as resin.
  • the combination of the material of the housing 36 and the material of the lid 37 is such that the housing 36 is an insulator (for example, resin) and the lid 37 is a conductor (for example, metal).
  • the combination is not limited.
  • the combination of the material of the housing 36 and the material of the lid 37 may be a combination in which both the housing 36 and the lid 37 are insulators (for example, resin), or the housing 3 6 It may be a combination in which both the conductor and the lid 37 are conductors (for example, metal).
  • the combination of the material of the housing 36 and the material of the lid 37 is such that the housing 36 is a conductor (for example, metal) and the lid 37 is an insulator (for example, resin). Good.
  • the conductive member 14 may be provided on the communication surface side (display 13 side) than the communication surface side.
  • the conductive member 1 may be provided on the side (cover 37 side) opposite to the communication surface with respect to 4.
  • the band-shaped article 1 has a structure in which the magnetic body 6 does not pass through the coil conductor 5. You may meet.
  • the modified example 10 in the plan view from the second direction 0 2, the first coil conductor portion 5 1 overlaps with the magnetic body 6, while the second coil conductor portion 5 2 and each coil conductor portion 5 0 does not overlap with magnetic substance 6.
  • a part of the coil conductor 5 may have a larger line width than the other parts of the coil conductor 5.
  • the line width of the second coil conductor part 52 is larger than that of the first coil conductor part 51.
  • the magnetic body 6 may have a T-shape.
  • the magnetic body 6 does not overlap a part of each coil conductor portion 50 in a plan view of the first main surface 61 of the magnetic body 6.
  • the magnetic body 6 overlaps the first coil conductor portion 51, the second coil conductor portion 52, and the rest of each coil conductor portion 50.
  • the magnetic body 6 has a T-shape.
  • the magnetic body 6 does not overlap a part of each coil conductor portion 50 in a plan view of the first main surface 61 of the magnetic body 6.
  • the magnetic body 6 overlaps the first coil conductor portion 51, the second coil conductor portion 52, and the rest of each coil conductor portion 50.
  • the band-shaped article 1 may have a structure in which the T-shaped magnetic body 6 does not pass through the coil conductor 5.
  • the magnetic body 6 does not overlap the first coil conductor portion 5 1 in a plan view of the first main surface 61 of the magnetic body 6.
  • the first main surface 61 of the magnetic material 6 has a T-shaped magnetic material in plan view. 6 does not overlap with the first coil conductor part 5 1.
  • the magnetic body 6 includes the coil conductor 5 excluding the second coil conductor portion 52. Any shape may be used so long as it does not overlap with all or part of the three sides.
  • the band-shaped article 1 according to Modification 15 is a wristwatch.
  • the antenna device 2 is provided in the central region of the main body 31 and the through hole 63 is formed at a position where the hands of the clock are arranged. make sure that the center of gravity of the coil opening 5 3 of the coil conductor 5 (the center of gravity of the coil conductor 5) approaches the center of gravity of the body 31. ⁇ 2020/175659 16 ⁇ (:171? 2020/008185
  • the part 31 accommodates the antenna device 2.
  • the band-type article 1 according to each of the above modification examples also has the same effect as the band-type article 1 according to the first embodiment.
  • the antenna device 2 3 is in that it has a shows Suyo coil conductors 5 3 1 7, differs from the band-type article 1 according to the first embodiment (see FIG. 2) To do.
  • Band-type article 1 3, as shown in FIG. 1 7 eight includes an antenna device 2 3, the main body portion 3 1 and a band portion 3 2. Further, the band-type article 13 further includes a printed wiring board 11 and a battery 12 as in the band-type article 1 according to the first embodiment. Regarding the band-type article 13 according to the second embodiment, the same components as those of the band-type article 1 according to the first embodiment (see FIG. 2) are designated by the same reference numerals and the description thereof will be omitted.
  • the band-shaped article 13 is, for example, a wristwatch such as a smart watch, like the band-shaped article 1 according to the first embodiment.
  • the band-type article 13 may be a smart band such as an activity meter.
  • the antenna device 23 includes a base material 4, a coil conductor 5 3 and a magnetic body 6, as shown in FIGS. Incidentally, relates to an antenna device 2 3 of the second embodiment, the description thereof is omitted for the same configuration and functions as the antenna apparatus 2 of Embodiment 1 (snake refer to FIG. 3 and FIG. 3).
  • the coil conductor 5 3 has a first coil conductor portion 5 13 3, a second coil conductor portion 5 2 3 and a third coil conductor portion 5 4 as shown in Figs. And a fourth coil conductor portion 55 and four coil conductor portions 50 3.
  • the first coil conductor portion 5 13 has a plurality of (two in the illustrated example) first conductor portions.
  • the second coil conductor portion 52 3 has a plurality of (two in the illustrated example) second conductor portions.
  • the third coil conductor portion 54 has a plurality of (two in the illustrated example) third conductor portions.
  • the fourth coil conductor portion 55 has a plurality of (three in the illustrated example) fourth conductor portions.
  • 2020/008185 ILE conductor part 50 3 has a plurality of (two or three in the illustrated example) conductor parts.
  • the coil conductor 5 3 of the second embodiment The description of the same configurations and functions as those of the coil conductor 5 of Embodiment 1 (see FIGS. 3 and 3) is omitted.
  • the first coil conductor portion 5 1 3, the second coil conductor portion 5 2 3, the third coil conductor portion 5 4 and the fourth coil conductor portion 5 5 are integrally formed via the coil conductor portion 50 3. It is provided.
  • One spiral coil is formed by the first coil conductor part 5 13 and the second coil conductor part 5 2 3 and the two coil conductor parts 50 3, and the third coil conductor part 5 4
  • the fourth coil conductor portion 55 and the two coil conductor portions 50 3 form one spiral coil.
  • the third coil conductor portion 54 is provided on the first main surface 61 with respect to the magnetic body 6.
  • the third coil conductor portion 5 4 is provided on the first main surface 61 with respect to the magnetic body 6 ”means that the third coil conductor portion 5 4 is first It is provided on the main surface 61 side, and in the plan view of the first main surface 61, the third coil conductor portion 54 is provided so as to overlap the first main surface 61.”
  • the third coil conductor portion 54 is provided on the first main surface 61 side with respect to the magnetic body 6 ”means that the third coil conductor portion 5 It is provided close to the main surface 61.”
  • the first main surface 61 is present between the third coil conductor portion 54 and the second main surface 62 in the second direction 02.
  • the fourth coil conductor portion 55 is provided on the second main surface 62 with respect to the magnetic body 6.
  • “the fourth coil conductor portion 5 5 is provided on the second main surface 62 with respect to the magnetic body 6” means that the fourth coil conductor portion 5 5 It is provided on the main surface 62 side, and in the plan view of the first main surface 61, the fourth coil conductor portion 55 is provided so as to overlap the second main surface 62.”
  • “The fourth coil conductor portion 5 5 is provided on the side of the second main surface 62 with respect to the magnetic body 6 ”means that the fourth coil conductor portion 5 5 is located closer to the second main surface 61 than the first main surface 61. It is provided close to the main surface 62.”
  • the second main surface 62 is present between the fourth coil conductor portion 55 and the first main surface 61 in the second direction 02.
  • the coil conductor part 55 overlaps with the magnetic body 6.
  • the third coil conductor portion 54 does not overlap the fourth coil conductor portion 55.
  • the plurality of conductor portions that make up the first coil conductor portion 5 13 and the plurality of conductor portions that make up the second coil conductor portion 5 23 are formed on the first main surface 6 1 of the magnetic body 6. In plan view, they do not overlap.
  • the plurality of conductor portions forming the third coil conductor portion 5 4 and the plurality of conductor portions forming the fourth coil conductor portion 5 5 do not overlap each other in a plan view of the first main surface 61 of the magnetic body 6. ..
  • the coil conductor 5 3 has a first coil opening 5 6 and a second coil opening 5 7.
  • the first coil opening 56 is surrounded by the first coil conductor portion 5 13 and the second coil conductor portion 5 23.
  • the second coil opening 57 is surrounded by the third coil conductor portion 54 and the fourth coil conductor portion 55.
  • the third coil conductor portion 5 4 and the fourth coil conductor portion 55 are opposed to each other at the first direction opening 1. Further, as in the first embodiment, the first coil conductor portion 5 13 and the second coil conductor portion 5 23 face each other.
  • the fourth coil conductor portion 55 is formed in the second direction that is directly crossed with the first main surface 61 of the magnetic body 6 when the band-shaped article 13 is wound around the arm 9 (see FIG. 10). At 0 2, it is located between the magnetic body 6 and the arm 9.
  • the first magnetic flux passing through the opening 5 6 and the magnetic flux passing through the second coil opening 5 7 have opposite phases.
  • the first magnetic flux passing through the first coil opening 5 6 and the second magnetic flux passing through the second coil opening 5 7 have opposite phases when viewed from the side where the display 13 is provided.
  • the first magnetic flux and the second magnetic flux have opposite phases means that the direction of the first magnetic flux and the direction of the second magnetic flux are opposite.
  • band-type product 1 3 further comprising a coil conductor 3 is a third coil conductors 5 4 and the fourth coil conductor portion 5 5.
  • the antenna characteristics can be further improved.
  • the first coil conductor portion 5 1 3 and the third coil conductor portion 5 4 are the second coil conductor portion 5 2 3 It may be located closer to the main body 31 than the fourth coil conductor 55.
  • the band-shaped article 13 may employ the configuration of each modification of the first embodiment.
  • the band-type article 13 according to each of the above modifications also has the same effects as the band-type article 13 according to the second embodiment.
  • the band type article 1 according to the third embodiment has a ring-shaped conductor 7 as shown in FIGS. 19 and 19 so that the band type article 1 according to the first embodiment (FIG. 18 and FIG. 1 See (1)).
  • the band-shaped article 1 swage according to the third embodiment includes an antenna device 2, a main body portion 31, a band portion 32, and a ring-shaped conductor 7.
  • the material of the main body 31 of the third embodiment is an insulator such as resin.
  • the material of the main body 31 is resin.
  • the band-shaped article 1 is similar to the band-shaped article 1 according to Embodiment 1 (see FIGS. 1 and 1). ⁇ 02020/175659 20 units (: 17 2020/008185
  • a printed wiring board 11 and a battery 12 are further provided.
  • the same components as those of the band-type article 1 according to the first embodiment are designated by the same reference numerals and the description thereof will be omitted.
  • the band-shaped article 1 swallow is, for example, a wristwatch such as a smart watch, like the band-type article 1 according to the first embodiment.
  • the swath of the band-shaped article may be a smart band such as an activity meter.
  • the ring-shaped conductor 7 has a ring opening 7 1 as shown in FIGS.
  • the ring-shaped conductor 7 is provided at the tip of the tubular portion 33 of the main body 31.
  • the material of the ring-shaped conductor 7 is, for example, metal.
  • the material of the ring-shaped conductor 7 may be a conductor other than metal.
  • the antenna device 2 is similar to the antenna device 2 of Embodiment 1 (see FIGS. 3 and 3) in that as shown in FIG. 19M, it includes a base material 4, a coil conductor 5, and a magnetic material 6. including.
  • description of the same configurations and functions as those of the antenna device 2 of the first embodiment will be omitted.
  • the antenna device 2 includes the first main surface 6 1 of the magnetic body 6 as shown in Fig. 2 18 when the swath of the band-shaped article 1 is attached to the arm 9 (see Fig. 1 (3)). It is located between the ring-shaped conductor 7 and the arm 9 in the orthogonal direction (second direction 0 2 ).
  • first direction mouth 1 In the direction in which the first coil conductor portion 5 1 and the second coil conductor portion 5 2 are adjacent to each other (first direction mouth 1), at least a portion of the coil conductor 5 close to the ring-shaped conductor 7 is a ring. It is located inside the outer edge of the conductor 7. In other words, the first coil conductor portion 51 is located inside the outer edge of the ring-shaped conductor 7 in a plan view of the first main surface 61 of the magnetic body 6. In the third embodiment, all of the coil conductor 5 is located inside the ring opening 7 1 of the ring-shaped conductor 7 in a plan view of the first main surface 61 of the magnetic body 6.
  • An eddy current is generated in the ring-shaped conductor 7 by the magnetic flux 0 3 1 generated by the current flowing in the coil conductor 5. Due to the eddy current generated in the ring-shaped conductor 7, a magnetic flux ⁇ 32 is generated as shown in Fig. 20.
  • the magnetic flux 0 3 1 radiated from the antenna device 2 passes through the outside of the ring-shaped conductor 7 as shown in FIG. More specifically, the magnetic flux ⁇ 31 radiated from the antenna device 2 collides with the magnetic flux ⁇ 32 radiated from the ring-shaped conductor 7, so that the inner circumferential side of the ring-shaped conductor 7, that is, the ring-shaped conductor 7 It passes through the outside of the ring-shaped conductor 7 without passing through the ring opening 7 1.
  • the magnetic flux 0 3 1 radiated from the antenna device 2 is
  • the loop of the magnetic flux 0 3 1 radiated from the antenna device 2 can be increased, so that the communication performance between the antenna device 2 and the partner antenna device 8 can be further improved.
  • the band-shaped article 1 swallow according to the third embodiment includes a ring-shaped conductor 7. Further, when the swath of the band-shaped article 1 is attached to the arm 9, the antenna device 2 is located between the ring-shaped conductor 7 and the arm 9. At least a portion of the coil conductor 5 close to the ring-shaped conductor 7 is located inside the outer edge of the ring-shaped conductor 7. This can further improve the communication characteristics when the angle formed between the antenna device 2 and the partner antenna device 8 is wide.
  • the band-shaped article 1 sack may have a non-conductor region 15 as shown in FIG.
  • the non-conductor region 15 is provided between the cylindrical portion 33 of the main body 31 and the ring-shaped conductor 7.
  • the material of the main body 31 is a conductor such as metal.
  • the non-conductor region 15 is formed of, for example, an insulator such as resin.
  • the non-conductor area 15 should be made of an insulator. ⁇ 2020/175659 22 ⁇ (:171? 2020 /008185
  • the space is not limited to, and may be space.
  • a part of the non-conductor area 15 may be an insulator and the rest of the non-conductor area 15 may be a space.
  • the band-shaped article 1 sack has a conductive member 14 between a display 13 and an antenna device 2 as shown in FIG. 21 (3).
  • the conductive member 14 of the modified example 2 is, for example, a copper foil.
  • the conductive member 14 is present between the display 13 and the antenna device 2, and the surrounding of the display 13 is present.
  • the loop of the magnetic flux radiated from the antenna device 2 can be increased, so that the characteristics of the antenna device 2 can be improved.
  • the adverse effect of the display 13 can be reduced without increasing the area of the conductive member 14 such as copper foil.
  • the band-shaped article 1 may adopt the configuration of each modified example of the first embodiment.
  • the band-shaped article 1 sack may adopt the configuration of the second embodiment.
  • the band-type article 1 according to each of the above modifications also has the same effect as that of the band-type article 1 according to the third embodiment.
  • the band portion 32 is not limited to being a separate body from the main body portion 31 and may be integrated with the main body portion 31.
  • the main body portion 31 and the band portion 32 may be an integrally formed body made of resin or the like.
  • each of band-shaped articles 1, 13, and 1 sack may be provided with a dial (not shown) instead of display 13.
  • the band type article 1, 1, 1 Each of the swallows may be equipped with a solar cell (not shown) together with a display or dial.
  • the band-type article (1 ;1 3 ;1 ⁇ ) includes an antenna device (2, a main body part (31), and a band part (32). 1) accommodates the antenna device (2; 23)
  • the band part (32) is attached to the main body part (3 1) along the first direction ( ⁇ 1).
  • 3 ) includes a coil conductor (5; 53) and a magnetic body (6)
  • the coil conductor (5; 53) includes a first coil conductor portion (5 1; 5 1 3) and a second coil conductor.
  • the magnetic body (6) has a first main surface (61) and a second main surface (62).
  • the first coil conductor portion (5 1; 5 13) is provided on the first main surface (6 1) with respect to the magnetic body (6).
  • the 2nd coil conductor ( Is not provided on the first main surface (6 1) with respect to the magnetic body (6).
  • the first coil conductor portion (5 1 ;5 13 3) does not overlap the second coil conductor portion (52 ;52 3 ).
  • the first coil conductor portion (5 1 ;5 1 3) and the second coil conductor portion (52 ;52 3 ) are Oppose each other.
  • the band portion (32) is attached along the first direction (mouth 1) along the main body portion (3 1).
  • the first coil conductor portion (5 1 ;5 13 3) and the second coil conductor portion (5 2 ;52 a) face each other in the first direction (mouth 1).
  • communication characteristics can be improved in a wide angle range between the antenna device (2; 23 ) and the partner antenna device (8).
  • the second coil conductor portion (52; 523 3 ) is the band-type article (1; 1 3 ;1 b) when wound on the target object (arm 9), in the direction (second direction 02) orthogonal to the first major surface (61), the magnetic substance (6) and the target object Located in between.
  • the object is the arm (9) of the human body. ⁇ 2020/1756 59 24 ⁇ (: 171-1? 2020 /008185
  • the band-shaped article (1 swath) according to the fourth aspect is the third aspect, further including a ring-shaped conductor (7).
  • the ring-shaped conductor (7) has a ring opening (71).
  • the antenna device (2; 2 3 ) is located between the ring-shaped conductor (7) and the arm (9) when the band-shaped article (1 scoop) is attached to the arm (9).
  • the first coil conductor portion (5 1; 5 13) is located inside the outer edge of the ring-shaped conductor (7).
  • the band-shaped article (1 tsubo) includes a ring-shaped conductor (7). Further, when the band-shaped article (1 sack) is attached to the arm (9), the antenna device (2) is located between the ring-shaped conductor (7) and the arm (9). In a plan view of the first main surface (6 1), the first coil conductor portion (5 1 Is located inside the outer edge of the ring-shaped conductor (7). This can further improve the communication characteristics when the angle formed by the antenna device (2; 23 ) and the partner antenna device (8) is wide.
  • the band-type article (1; 1 3 ;1 ⁇ ) according to the sixth aspect is the same as the first coil conductor portion (5 1; 5 1 3) in any one of the third to fifth aspects.
  • a band-shaped article (1; 1 3 ; 1 swath) is located near the little finger (91) when it is wrapped around the arm (9).
  • the band-type article (1; 1 3 ;1 swallow) according to the seventh aspect is the one according to any one of the first to sixth aspects, wherein the main body (3 1) has the first main surface (6 In plan view of 1), the center of gravity of the coil opening (53; 56) surrounded by the first coil conductor portion (5 1 ;5 13 3) and the second coil conductor portion (52 ;52 3 ) is the main body portion ( 3)
  • the antenna device (2; 23) is housed so that the center of gravity of (1) is not displaced.
  • the main body (3 1) houses the antenna device (2; 2 3) so that the center of gravity of the coil opening (5 3; 5 6) deviates from the center of gravity of the main body (3 1). This allows the antenna device (2; 2 The coil conductor (5; 5 The position where the coupling coefficient between the other side coil conductor (8 1) of the other side antenna device (8) and the other side is away from the center of gravity of the main body 6 (3 1) and the outer peripheral part of the main body (3 1) Can be located at. As a result, it is possible to easily improve the communication characteristics in the usage pattern.
  • the second coil conductor portion (5 2; 5 2 3) is , Is provided on the second main surface (62) with respect to the magnetic body (6).
  • the band-shaped article (13) according to the tenth aspect is any one of the first to ninth aspects.
  • the coil conductor (53) further includes a third coil conductor portion (54) and a fourth coil conductor portion (55).
  • the third coil conductor portion (54) is provided on the first main surface (61) with respect to the magnetic body (6).
  • the fourth coil conductor portion (55) is not provided on the first main surface (61) with respect to the magnetic body (6).
  • the third coil conductor portion (5 4) does not overlap with the fourth coil conductor portion (5 5) in a plan view of the first main surface (6 1).
  • the third coil conductor portion (54) and the fourth coil conductor portion (55) oppose each other in the first direction (01) in a plan view of the first main surface (61).
  • the coil conductor (53) is
  • the third coil conductor portion (54) and the fourth coil conductor portion (55) are further included. As a result, the antenna characteristics can be further improved.
  • the band-shaped article (1 3) according to the 11th aspect is the same as in the 10th aspect, except that the band-shaped article (1 3) is attached to the arm (9) in the fourth coil conductor portion (55).
  • the first coil conductor portion (5 13) and the second coil conductor portion (52 3) ) Is defined as the first coil opening (56), and the area surrounded by the third coil conductor section (54) and the fourth coil conductor section (55) is defined as the second coil opening (56). 57).
  • the magnetic flux passing through the first coil opening (56) and the magnetic flux passing through the second coil opening (57) have opposite phases in a plan view of the first main surface (61).
  • the fourth coil conductor portion (55) includes a magnetic body (6). Against the second main surface (62).
  • the band-shaped article (1; 13: 1 ⁇ ) according to the fifteenth aspect further comprises a conductor in any one of the first to fourteenth aspects.
  • the conductor is a magnetic material in a direction (second direction 02) orthogonal to the first major surface (61). It is located between (6) and the arm (9).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention permet d'améliorer les caractéristiques de communication sur une large plage angulaire entre un dispositif d'antenne et un dispositif d'antenne partenaire. Un article de type bande (1) comprend un dispositif d'antenne (2), une partie de corps principal (31) et une partie de bande (32). La partie de corps principal (31) loge le dispositif d'antenne (2). La partie de bande (32) est fixée à la partie de corps principal (31) le long d'une première direction (D1). Dispositif d'antenne (2) comprenant un conducteur de bobine (5) et un corps magnétique (6). Le conducteur de bobine (5) comprend une première partie de conducteur de bobine (51) et une seconde partie de conducteur de bobine (52). La première partie de conducteur de bobine (51) est disposée sur une première surface principale (61) par rapport au corps magnétique (6). La seconde partie de conducteur de bobine (52) n'est pas disposée sur la première surface principale (61) par rapport au corps magnétique (6). Dans une vue en plan de la première surface principale (61), la première partie de conducteur de bobine (51) et la seconde partie de conducteur de bobine (52) sont opposées l'une par rapport à l'autre dans la première direction (D1).
PCT/JP2020/008185 2019-02-28 2020-02-27 Article de type bande WO2020175659A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019036997 2019-02-28
JP2019-036997 2019-02-28

Publications (1)

Publication Number Publication Date
WO2020175659A1 true WO2020175659A1 (fr) 2020-09-03

Family

ID=72239708

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/008185 WO2020175659A1 (fr) 2019-02-28 2020-02-27 Article de type bande

Country Status (1)

Country Link
WO (1) WO2020175659A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023162768A1 (fr) * 2022-02-24 2023-08-31 株式会社村田製作所 Dispositif annulaire
JP7504038B2 (ja) 2021-01-29 2024-06-21 Tdk株式会社 コイル部品及びこれを備えるワイヤレス電力伝送デバイス

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010216809A (ja) * 2009-03-13 2010-09-30 Citizen Watch Co Ltd 無線機能付き電子時計
WO2018225833A1 (fr) * 2017-06-09 2018-12-13 株式会社村田製作所 Dispositif d'antenne, bobine d'antenne et équipement électronique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010216809A (ja) * 2009-03-13 2010-09-30 Citizen Watch Co Ltd 無線機能付き電子時計
WO2018225833A1 (fr) * 2017-06-09 2018-12-13 株式会社村田製作所 Dispositif d'antenne, bobine d'antenne et équipement électronique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7504038B2 (ja) 2021-01-29 2024-06-21 Tdk株式会社 コイル部品及びこれを備えるワイヤレス電力伝送デバイス
WO2023162768A1 (fr) * 2022-02-24 2023-08-31 株式会社村田製作所 Dispositif annulaire

Similar Documents

Publication Publication Date Title
US11652511B2 (en) Inductor coil structures to influence wireless transmission performance
US10916850B2 (en) Omni-directional antenna for a cylindrical body
JP6051474B2 (ja) 無接点電力伝送装置及びこれを備える電子機器
EP2518904B1 (fr) Dispositif de transmission de puissance sans contact
JP5505581B1 (ja) アンテナ装置および通信端末装置
EP2523255A1 (fr) Dispositif d'antenne et dispositif formant terminal de communication
JP6516082B1 (ja) アンテナ装置及び電子機器
US11282639B2 (en) Antenna device and electronic apparatus
CN210744173U (zh) 天线装置、通信系统及电子设备
WO2020175659A1 (fr) Article de type bande
CN106561072B (zh) 盖及包括该盖的便携式终端
CN105051759B (zh) 具备层叠线圈天线的小型ic标签及其制法
US10903557B2 (en) Antenna device and electronic device
KR102290168B1 (ko) 안테나유닛 및 이를 포함하는 무선전력 충전모듈
US20200014426A1 (en) Antenna device, antenna coil, and electronic apparatus
WO2016194528A1 (fr) Plateau équipé d'antenne pour lecteur d'étiquette rfid, et système d'identification par radiofréquence (rfid)
CN210443652U (zh) 天线装置以及电子设备
KR102704174B1 (ko) 평판형 코일 및 이를 포함하는 무선전력 전송모듈
JP2019071597A (ja) アンテナ装置及び電子機器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20762525

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20762525

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP