WO2020175659A1

WO2020175659A1 - Band-type article

Info

Publication number: WO2020175659A1
Application number: PCT/JP2020/008185
Authority: WO
Inventors: 昌良山本
Original assignee: 株式会社村田製作所
Priority date: 2019-02-28
Filing date: 2020-02-27
Publication date: 2020-09-03

Abstract

The present invention makes it possible to improve communication characteristics over a wide angular range between an antenna device and a partner antenna device. A band-type article (1) comprises an antenna device (2), a main body part (31), and a band part (32). The main body part (31) houses the antenna device (2). The band part (32) is attached to the main body part (31) along a first direction (D1). The antenna device (2) includes a coil conductor (5) and a magnetic body (6). The coil conductor (5) has a first coil conductor part (51) and a second coil conductor part (52). The first coil conductor part (51) is provided on a first main surface (61) with respect to the magnetic body (6). The second coil conductor part (52) is not provided on the first main surface (61) with respect to the magnetic body (6). In a plan view of the first main surface (61) the first coil conductor part (51) and the second coil conductor part (52) oppose one another in the first direction (D1).

Description

\¥02020/175659 1 unit (: 17 2020/008185

Specification

Title of invention: Band type article

Technical field

The present invention generally relates to a band-type article, and more particularly to a band-type article provided with an antenna device.

Background technology

[0002] 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.

Prior art documents

Patent literature

[0003] Patent Document 1: International Publication No. 2 0 1 6/1 3 2 6 5 4

Summary of the invention

Problems to be Solved by the Invention

[0004] In the conventional band-type article described in Patent Document 1, since the coil conductor housed in the main body is a planar coil, the antenna apparatus of the band-type article and the counterpart antenna apparatus are There is a problem that it is difficult to obtain good communication characteristics in a wide angle range. For example, when the angle formed by the coil conductor of the antenna device and the coil conductor of the antenna device on the other side becomes large, the communication characteristics may deteriorate sharply.

[0005] 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.

Means for solving the problem

A band type article according to an aspect of the present invention includes: an antenna device; a main body portion; 〇 2020/175659 2 卩 (：171? 2020 /008185

And a section. 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. In a plan view of the first main surface, the first coil conductor portion does not overlap with the second coil conductor portion. In a plan view of the first main surface, the first coil conductor portion and the second coil conductor portion face each other in the first direction.

Effect of the invention

[0007] With the band-type article according to the above aspect of the present invention, it is possible to improve communication characteristics between the antenna device and the partner antenna device in a wide angle range. Brief description of the drawings

[0008] [Fig. 1] 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] FIG. 2 is a schematic view of the band-shaped article of the above.

[FIG. 3] 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. 4] 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] 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] FIG. 7 is a schematic view of a band-shaped article according to a first modification of the first embodiment. 20/175659 3 卩 (: 171? 2020 /008185

[FIG. 8] 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] 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] FIG. 10 is a schematic view of a band-shaped article according to Modification 7 of Embodiment 1.

[FIG. 11] 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.

[FIG. 12] FIG. 12 is a schematic view of a band type article according to a modified example 10 of the first embodiment.

[FIG. 13] 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] 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] 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] FIG. 16 is a schematic view of a band type article according to a modified example 15 of the first embodiment.

[FIG. 17] 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. 18] 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. [FIG. 20] FIGS. 20A to 20C are schematic views showing magnetic flux in the band-shaped article of the above.

[FIG. 21] 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.

MODE FOR CARRYING OUT THE INVENTION

[0009] Hereinafter, band-type articles according to Embodiments 1 to 3 will be described with reference to the drawings. The drawings referred to in the following embodiments and the like are schematic drawings, and the ratios of the sizes and thicknesses of the constituent elements in the drawings do not necessarily reflect the actual dimensional ratios.

[0010] The "antenna device" according to each embodiment is an antenna device used in a "wireless transmission system". Here, 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.

[001 1] In addition, the near field communication used in the "antenna device" according to each embodiment 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.

[0012] Further, a wireless power feeding method used in the "antenna device" according to each embodiment, and For example, there are magnetic field coupling methods such as an electromagnetic induction method and a magnetic field resonance method. As 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. As 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.

[0013] (Embodiment 1)

(1) Composition of band type article

The configuration of the band-shaped article 1 according to the first embodiment will be described with reference to the drawings.

As shown in FIGS. 1A and 1B, the band type article 1 according to the first embodiment includes an antenna device 2, a main body section 31 and a band section 32. As shown in FIG. 2, 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.

[0015] The band-shaped article 1 is, for example, a wristwatch such as a smart watch. Alternatively, the band type article 1 may be a smart band such as an activity meter. The example of FIGS. 1A and 1B shows the case where the band-shaped article 1 is a wristwatch.

[0016] (2) Each component of the band type article

Hereinafter, each component of the band-type article 1 according to the first embodiment will be described with reference to the drawings.

[0017] (2.1) Antenna device

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.

[0018] (2. 1. 1) Magnetic material

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).

[0019] The material of the magnetic body 6 is a ferromagnetic material such as ferrite. Examples of the material of the magnetic body 6 include a sintered body ferrite, an amorphous magnetic body, and a magnetic sheet. Examples of ferromagnetic materials used for the magnetic body 6 include Mn _Z n _F e based ferrites and N i -Z n -Fe based ferrites.

[0020] (2. 1. 2) Base material

As shown in FIGS. 3A and 3B, 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.

[0021] The material of the base material 4 is, for example, an electrically insulating material such as resin. Examples of 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).

[0022] (2. 1. 3) Coil conductor

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 〇 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. Here, "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. Here, "the second coil conductor portion 52 is provided on the second main surface 62 with respect to the magnetic body 6" means that 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.

In a plan view of the first main surface 61 of the magnetic body 6, the first coil conductor portion 51 and the first coil conductor portion 51

2 The coil conductor 52 overlaps with the magnetic body 6. In a plan view of the first main surface 61 of the magnetic body 6, the first coil conductor portion 51 is in a position not overlapping the second coil conductor portion 52. In other words, 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.

[0027] The coil conductor 5 has a coil opening 53. Coil conductor 5 is in the second direction 0

It is provided on the substrate 4 in a spiral around an axis along the line 2. Figure 3-8 〇 2020/1756 59 8 卩 (: 171-1? 2020 /008185

In the example, the coil conductor 5 is provided on the base material 4 in a state of being wound four times. Examples of materials for the coil conductor 5 include copper and aluminum.

[0028] 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.

[0029] (2.2) Main body

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”.

[0030] (2.3) Band section

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). In the present application, 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.

[0031] (2.4) Printed wiring board, battery, and display

As shown in Fig. 2, 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. Located on the side opposite to (Display 1 3 side) (Bottom 3 4 side) 〇 2020/175659 9 卩(: 171-1?2020/008185

It 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.

[0034] (2.5) Positions of coil conductor and magnetic body

As shown in FIG. 18 and FIG. 2, in the plan view of the first main surface 61 of the magnetic body 6, 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.

[0035] Here, 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. In the example of Figure 2, the weight of the coil conductor 〇 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.

[0037] As shown in Fig. 10, 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. To do. In other words, 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. On the other hand, 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. In other words, 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. In this case, the arm 9 can be rotated in the direction in which the antenna device 2 can obtain good antenna characteristics.

(3) Operation of antenna device

Hereinafter, the operation of the antenna device 2 according to the first embodiment will be described with reference to FIGS. 4, 4, and 5. As shown in 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.

[0039] In the antenna device 2, when a current flows through the coil conductor 5, a magnetic flux is generated.

[0040] In Fig. 48 and Fig. 4, the position coordinates of the center of gravity (center) of the main body 3 1 in the direction of the winding axis of the coil conductor 5, that is, in the plan view from the second direction opening 2 are shown as = 0. To do. 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 卩(: 17 2020/008185

5 shows the coupling characteristics when the other side coil conductor 81 is moved. The position coordinate of the center of gravity (center) of the coil opening 5 3 of the coil conductor 5 is = 7.

Is

[0041] As shown in FIG. 5, 侂 = _ 1

When, 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.

[0042] (4) Usage of band-shaped article

Hereinafter, the usage pattern of the band-shaped article 1 will be described with reference to FIGS. 6 to 6 ⁽ 3. 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.

In any of the usage patterns of FIGS. 68 to 60, 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. And the inside of the magnetic body 6. In other words, 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. 〇 2020/175659 12 boxes (：171? 2020 /008185

[0045] (5) Effect

In the band-type article 1 according to the first embodiment, 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. As a result, communication characteristics can be improved in a wide angle range between the antenna device 2 and the partner antenna device 8.

In the band-type article 1 according to the first embodiment, 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. As a result, 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. Can be located on the outer periphery of the. As a result, the communication characteristics in the usage pattern can be easily improved.

[0047] (6) Modification

Hereinafter, a modified example of the first embodiment will be described.

As a first modification of the first embodiment, as shown in FIG. 7, 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. In addition, 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.

As a second modification of the first embodiment, in band-shaped article 1, as shown in FIG. 8, printed wiring board 11 and battery 12 are provided adjacent to each other in first direction 0 1. Good.

As a third modification of the first embodiment, 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 〇 2020/175659 13 卩(：171? 2020/008185

Including evening. 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.

As a modified example 4 of the first embodiment, in the band-shaped article 1, as shown in FIG. 8 (3, 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.

[0052] In addition, when 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.

[0053] 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.

As a fifth modification of the first embodiment, in the band-shaped article 1, as shown in FIG. 9, 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. In the example of FIG. 98, the material of the main body 31 is metal.

As a sixth modification of the first embodiment, in the band-shaped article 1, as shown in FIG. 9A, 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.

As a modified example 7 of the first embodiment, 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 〇 2020/175659 14 卩 (: 171-1? 2020 /008185

, Close one opening of the case 36. The housing 36 and the lid 37 are separate bodies. In the example of FIG. 10, the material of the housing 36 is resin, and 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. Further, the material of the lid 37 may be a conductor other than metal, or may be an insulator such as resin. In other words, 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). Alternatively, 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.

As a modified example 8 of the first embodiment, as shown in FIG. 11, in a combination in which the material of the housing 36 is resin and the material of the lid 37 is metal, the conductive member 14 The antenna device 2 may be provided on the communication surface side (display 13 side) than the communication surface side.

As a ninth modification of the first embodiment, as shown in FIG. 11M, in a combination in which the material of the casing 36 is a resin and the material of the lid 37 is a metal, the conductive member 1 The antenna device 2 may be provided on the side (cover 37 side) opposite to the communication surface with respect to 4.

As a modified example 10 of the first embodiment, as shown in FIGS. 12, 13, and 13 A, 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. In 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.

As a modified example 11 of the first embodiment, as shown in FIG. 14, a part of the coil conductor 5 may have a larger line width than the other parts of the coil conductor 5. In the example shown in Fig. 14.8, the line width of the second coil conductor part 52 is larger than that of the first coil conductor part 51. 〇 2020/175659 15 卩(：171? 2020/008185

[0062] Further, as shown in Fig. 148, the magnetic body 6 may have a T-shape. In the example of FIG. 14.8, 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. On the other hand, 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.

In Modification 12 of Embodiment 1, as in Modification 11, as shown in FIG. 14M, even if a part of the coil conductor 5 has a larger line width than the other parts of the coil conductor 5. Good. In the example of Fig. 14 Mitsumi, the line width of the second coil conductor part 52 is larger than the line width of the first coil conductor part 51.

[0064] Further, as shown in Fig. 14B, the magnetic body 6 has a T-shape. In the example of FIG. 14B, 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. On the other hand, 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.

As a modified example 13 of the first embodiment, as shown in FIG. 15, 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. In the example of FIG. 15, 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.

In Modification 14 of Embodiment 1, as in Modification 13, as shown in FIG. 15M, 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.

[0067] In short, in Modifications 11 to 14 in a plan view of the first main surface 61 of the magnetic body 6, 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.

As a modified example 15 of the first embodiment, as shown in FIG.

It may have 63. 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. 〇 2020/175659 16 卩(：171? 2020/008185

The part 31 accommodates the antenna device 2.

[0069] 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.

[0070] (Embodiment 2)

Band-type article 1 3 according to the second 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.

[0071] (1) Structure of band-shaped article

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. Alternatively, 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).

[0074] 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. Each 〇 2020/175659 17 卩(:171? 2020/008185 ILE conductor part 50 3 has a plurality of (two or three in the illustrated example) conductor parts. Incidentally, regarding 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.

[0075] 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. Here, “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." In this case, 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. Here, "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." In this case, 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.

[0078] Further, in plan view of the first main surface 61 of the magnetic body 6, the third coil conductor portion 54 and 〇 2020/175659 18 卩(: 171-1?2020/008185

4 The coil conductor part 55 overlaps with the magnetic body 6. In a plan view of the first main surface 61 of the magnetic body 6, the third coil conductor portion 54 does not overlap the fourth coil conductor portion 55. In other words, 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.

In a plan view of the first main surface 61 of the magnetic body 6, 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.

In [0081] the first direction port 1, second coil conductor portion 5 2 _3, and the fourth coil conductor portion 5

5 is located closer to the main body portion 3 1 than the first coil conductor portion 5 13 and the third coil conductor portion 5 4. In other words, 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.

(2) Operation of antenna device

The operation of the antenna apparatus 2 ₃ according to Embodiment 2, FIG. 1 7, will be described with reference FIG. 1 8, and FIG 8 Serpent.

[0083] In the antenna device 2 ₃ having the structure as described above, when the coil conductors 5 3 two current flows, magnetic flux is generated. The area surrounded by the first coil conductor portion 5 13 and the second coil conductor portion 5 23 is defined as the first coil opening 5 6. The area surrounded by the third coil conductor portion 54 and the fourth coil conductor portion 55 is defined as the second coil opening 57. At this time, in plan view of the first main surface 61 of the magnetic body 6, 〇 2020/175659 19 卩(: 171-1?2020/008185

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. In other words, 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. Here, "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.

[0084] (3) Effect

In the band-type product 1 ₃ according to the embodiment 2, further comprising a coil conductor ₃ is a third coil conductors 5 4 and the fourth coil conductor portion 5 5. As a result, the antenna characteristics can be further improved.

[0085] (4) Modification

As a modified example of the second embodiment, in the band-type article 13 as shown in FIG. 17M, 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.

As another modification of the second embodiment, 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.

[0088] (Embodiment 3)

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)).

[0089] (1) Structure of band type article

As shown in FIG. 19 and FIG. 19M, 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. In the example shown in FIG. 19M, the material of the main body 31 is resin. In addition, 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

As shown at 18, a printed wiring board 11 and a battery 12 are further provided. Regarding the band-type article 16 according to the third embodiment, 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.

[0090] 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. Alternatively, the swath of the band-shaped article may be a smart band such as an activity meter.

[0091] 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. Regarding the antenna device 2 of the third embodiment, description of the same configurations and functions as those of the antenna device 2 of the first embodiment will be omitted.

[0093] 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 ).

[0094] 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.

[0095] (2) Magnetic flux radiated from the band-shaped article

Hereinafter, the magnetic flux in the swath of the band-shaped article 1 according to the third embodiment will be described with reference to FIGS. 〇 2020/175659 21 卩(：171? 2020/008185

First, when a current flows through the coil conductor 5 of the antenna device 2, a magnetic flux ø 3 1 is generated as shown in FIG.

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.

As a result, the magnetic flux 0 3 1 radiated from the antenna device 2 is

Compared to the case where 7 is not provided, it will spread horizontally. As a result, 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.

[0100] (3) Effect

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.

[0101] (4) Modified example

As a first modification of the third embodiment, 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. In the modified example 1, 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. 〇 2020/175659 22 卩 (：171? 2020 /008185

The space is not limited to, and may be space. Alternatively, 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.

As a second modification of the third embodiment, 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.In the modified example 2, the conductive member 14 is present between the display 13 and the antenna device 2, and the surrounding of the display 13 is present. There is a ring-shaped conductor 7.

[0103] According to the band-shaped article 1 of the modification example 2, 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. In addition, the adverse effect of the display 13 can be reduced without increasing the area of the conductive member 14 such as copper foil.

As another modified example of the second embodiment, the band-shaped article 1 may adopt the configuration of each modified example of the first embodiment. Alternatively, the band-shaped article 1 sack may adopt the configuration of the second embodiment.

[0105] 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.

[0106] (Modification)

As a modified example of each of Embodiments 1 to 3, 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. For example, the main body portion 31 and the band portion 32 may be an integrally formed body made of resin or the like.

As a modified example of Embodiments 1 to 3, each of band-shaped articles 1, 13, and 1 sack may be provided with a dial (not shown) instead of display 13. In addition, 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.

[0108] The embodiments and modifications described above are only a part of various embodiments and modifications of the present invention. Further, the embodiments and the modifications can be variously modified according to the design etc. as long as the object of the present invention can be achieved. 〇 2020/175659 23 卩(: 171-1?2020/008185

[0109] (Aspect)

The following aspects are disclosed from the embodiment and the modified examples described above.

[0110] The band-type article (1 ;1 3 ;1 匕) according to the first aspect 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. Department

Have. 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). 2nd coil conductor (

Is not provided on the first main surface (6 1) with respect to the magnetic body (6). In a plan view of the first main surface (61), the first coil conductor portion (5 1 ;5 13 3) does not overlap the second coil conductor portion (52 ;52 ₃ ). In a plan view of the first main surface (61), in the first direction (mouth 1), the first coil conductor portion (5 1 ;5 1 3) and the second coil conductor portion (52 ;52 ₃ ) are Oppose each other.

[0111] In the band-type article (1 ;1 3 ;1 匕) according to the first aspect, the band portion (32) is attached along the first direction (mouth 1) along the main body portion (3 1). In this state, 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). As a result, communication characteristics can be improved in a wide angle range between the antenna device (2; ₂₃ ) and the partner antenna device (8).

[0112] In the band-shaped article (1 ;1 ₃ ;1 匕) according to the second aspect, in the first aspect, 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.

[0113] In the band-shaped article (1; 1 3 ;1 swallow) according to the third aspect, in the second aspect, the object is the arm (9) of the human body. 〇 2020/1756 59 24 卩 (: 171-1? 2020 /008185

[0114] 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). In a plan view of the first main surface (61), the first coil conductor portion (5 1; 5 13) is located inside the outer edge of the ring-shaped conductor (7).

[0115] The band-shaped article (1 tsubo) according to the fourth aspect 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.

[0116] In the band-shaped article (1 匕) according to the fifth aspect, in the fourth aspect, in plan view of the first main surface (61), all of the coil conductors (5; 53) are ring-shaped. Located in the ring opening (71) of the conductor (7).

[0117] The band-type article (1; 1 3 ;1 匕) 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 second coil conductor portion (52; 52 _3), the band-type article when (1; 1 3 1 spoon) is wound on the arm (9), located near the thumb (92).

[0118] 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.

[0119] In the band-type article (1 ;1 ₃ ;1 匕) according to the seventh aspect, it is surrounded by the first coil conductor portion (5 1 ;5 1 3) and the second coil conductor portion (52 ;523). ing 〇 2020/175659 25 卩 (：171? 2020 /008185

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.

[0120] In the band-shaped article (1 ;1 ₃ ;1 匕) according to the eighth aspect, in any one of the first to seventh aspects, 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).

[0121] In the band-type article (1 ;1 ₃ ;1 匕) according to the ninth aspect, in any one of the first to seventh aspects, in the plan view of the first main surface (61), 2 coil conductor

Does not overlap with the magnetic material (6).

[0122] The band-shaped article (13) according to the tenth aspect is any one of the first to ninth aspects.

In one, 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).

[0123] In the band-type article (13) according to the tenth aspect, 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.

[0124] 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). When wound, in the direction (second direction 0 2) orthogonal to the first major surface (6 1), the magnetic substance 〇 2020/1756 59 26 卩 (：171? 2020 /008185

Located between (6) and arm (9).

[0125] In the band-type article (1 ₃ ) according to the 12th aspect, in the 10th or 11th aspect, 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). At this time, 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).

[0126] In the band-shaped article (13) according to the 13th aspect, in any one of the 10th to 12th aspects, the fourth coil conductor portion (55) includes a magnetic body (6). Against the second main surface (62).

[0127] In the band-type article (1 ₃ ) according to the 14th aspect, in any one of the 10th to 12th aspects, in the plan view of the first main surface (61), The coil conductor (5 2; 523) does not overlap with the magnetic body (6).

[0128] The band-shaped article (1; 13: 1 匕) according to the fifteenth aspect further comprises a conductor in any one of the first to fourteenth aspects. When the band-shaped article (1 ;1 3 ;1 匕) is wound around the arm (9), 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).

Explanation of symbols

[0129] 1, 1, 3, 1 swath band type article

2, 23 Antenna device

3 1 Main unit

32 band

5, 53 coil conductor

5 1, 5 1 3 1st coil conductor

52, 523 2nd coil conductor part

54 3rd coil conductor \¥02020/175659 27 卩 (: 171?2020/008185

55 4th coil conductor

56 1st coil opening

57 Second coil opening

6 magnetic material

6 1 1st main surface

62 Second main surface

7 Ring conductor

7 1 Ring opening

9 arms

9 1 pinkie

92 thumb

〇 1 1st direction

Claims

〇 2020/1756 59 28 2020/008185 Claims

[Claim 1] An antenna device,

A main body for housing the antenna device,

A band portion attached to the main body portion along a first direction,

The antenna device is

A coil conductor having a first coil conductor portion and a second coil conductor portion, and a magnetic body having 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,

In a plan view of the first main surface, the first coil conductor portion does not overlap with the second coil conductor portion,

In a plan view of the first main surface, the first coil conductor portion and the second coil conductor portion are opposed to each other in the first direction.

Band type article.

[Claim 2] The second coil conductor portion is located between the magnetic body and the object in a direction orthogonal to the first main surface when the band-shaped article is wound around the object. To do

The band-shaped article according to claim 1.

[Claim 3] The object is an arm of a human body,

The band-shaped article according to claim 2.

[Claim 4] further comprising a ring-shaped conductor having a ring opening,

The antenna device is located between the ring-shaped conductor and the arm when the band-shaped article is attached to the arm,

In a plan view of the first main surface, the first coil conductor portion is located inside an outer edge of the ring-shaped conductor, 〇 2020/1756 59 29 卩 (: 171-1? 2020 /008185

The band-shaped article according to claim 3.

[Claim 5] In a plan view of the first main surface, all of the coil conductors are located in the ring opening of the ring-shaped conductor,

The band-shaped article according to claim 4.

[Claim 6] The first coil conductor portion is located near a little finger when the band-shaped article is wound around the arm,

The second coil conductor portion is located near the thumb when the band-shaped article is wound around the arm,

The band-shaped article according to any one of claims 3 to 5.

7. The main body portion has a center of gravity of a coil opening surrounded by the first coil conductor portion and the second coil conductor portion in a plan view of the first main surface from a center of gravity of the main body portion. To accommodate the antenna device,

The band-shaped article according to any one of claims 1 to 6.

8. The second coil conductor portion is provided on the second main surface with respect to the magnetic body.

The band type article according to any one of claims 1 to 7.

[Claim 9] In a plan view of the first main surface, the second coil conductor portion does not overlap with the magnetic body,

The band type article according to any one of claims 1 to 7.

[Claim 10] The coil conductor further includes a third coil conductor portion and a fourth coil conductor portion,

The third coil conductor portion is provided on the first main surface with respect to the magnetic body,

The fourth coil conductor portion is not provided on the first main surface with respect to the magnetic body,

In a plan view of the first main surface, the third coil conductor portion does not overlap with the fourth coil conductor portion,

In a plan view of the first main surface, in the first direction, the third coil 〇 2020/1756 59 30 卩 (: 171-1? 2020 /008185

The conductor portion and the fourth coil conductor portion face each other,

The band-shaped article according to any one of claims 1 to 9.

[Claim 11] The fourth coil conductor portion is located between the magnetic body and the arm in a direction orthogonal to the first main surface when the band-shaped article is wound around the arm. ,

The band-shaped article according to claim 10.

[Claim 12] A region surrounded by the first coil conductor part and the second coil conductor part is defined as a first coil opening, and the third coil conductor part and the fourth coil conductor part are defined. When the enclosed area is defined as the second coil opening,

In a plan view of the first main surface, the magnetic flux passing through the first coil opening and the magnetic flux passing through the second coil opening have opposite phases.

The band type article according to claim 10 or 11.

[Claim 13] The fourth coil conductor portion is provided on the second main surface with respect to the magnetic body,

The band-shaped article according to any one of claims 10 to 12.

14. The plan view of the first main surface, the second coil conductor portion does not overlap with the magnetic body,

The band-shaped article according to any one of claims 10 to 12.

[Claim 15] When the band type article is wound around an arm, the conductor further includes a conductor located between the magnetic body and the arm in a direction orthogonal to the first main surface.

The band-shaped article according to any one of claims 1 to 14.