Antenna resonator and protective member for wireless terminal

Abstract

To highly accurately determine distance between an antenna of a wireless terminal and a conductor element provided in a resonator for the antenna.SOLUTION: An antenna resonator is attached to a housing of a wireless terminal. The antenna resonator includes a body portion provided with a parasitic conductor element that resonates with the antenna, and a protruding portion that protrudes from the body portion toward the housing of the wireless terminal to which the antenna resonator is attached. A tip end of the protruding portion is in contact with the housing of the wireless terminal to which the antenna resonator is attached. With the conductive element, a length of the longest line segment among line segments formed on the conductive element by connecting arbitrary two points on the conductive element is within a range of 1.95 mm to 3.7 mm.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an antenna resonator and a protective member for a wireless terminal. [Background technology]

[0002] In recent years, wireless terminals have been used for various purposes such as watching videos and playing games. To enable comfortable use of wireless terminals for such purposes, progress is being made in supporting the fifth generation mobile communication system (5G), which enables larger capacity and faster communication. For example, In wireless communication, radio waves in the millimeter wave band are used. In wireless communication, a technique has been proposed in which a conductive element is arranged in the direction in which an antenna emits radio waves to improve the operating gain (see, for example, Patent Documents 1 to 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-210676 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-263336 [Patent Document 3] Japanese Patent Application Publication No. 11-177335 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, an antenna resonator may be attached to the housing of a wireless terminal using an adhesive. However, if adhesive is interposed between the antenna resonator and the housing of the wireless terminal, the elasticity of the adhesive makes it difficult to precisely control the distance between the antenna provided in the wireless terminal and the conductive element in the antenna resonator that resonates with the antenna. Since the distance between the antenna and the conductive element is important for improving the operational gain of the antenna, a decrease in the accuracy of the distance between the antenna and the conductive element provided in such a wireless terminal poses a challenge in improving the operational gain of the antenna.

[0005] One aspect of the disclosed technology aims to provide an antenna resonator and a protective member for a wireless terminal that can determine with high precision the distance between the antenna of the wireless terminal and a conductive element provided in the antenna resonator. [Means for solving the problem]

[0006] One aspect of the disclosed technology is exemplified by the following antenna resonator. The antenna resonator is attached to the housing of a wireless terminal. The antenna resonator includes a main body provided with a parasitic conductive element that resonates with the antenna, and a protrusion that protrudes from the main body toward the housing of the attached wireless terminal. A tip of the protrusion contacts the housing of the attached wireless terminal, and the conductive element has a length of the longest line segment formed on the conductive element by connecting any two points on the conductive element that is within a range of 1.95 mm to 3.7 mm. [Effects of the Invention]

[0007] According to the disclosed technique, it is possible to determine with high precision the distance between the antenna of a wireless terminal and a conductive element provided in an antenna resonator. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing an example of a state in which a resonator according to an embodiment is attached to a smartphone. [Figure 2] FIG. 2 is a diagram showing an example of the state of the resonator as viewed from the −X direction. [Figure 3] FIG. 3 is a diagram showing an example of the state of the resonator as viewed from the +X direction. [Figure 4] FIG. 4 is a diagram showing an example of the size of the resonator. [Figure 5] FIG. 5 is a diagram illustrating the relationship between the distance between the resonator and the patch antenna and the operational gain of the patch antenna. [Figure 6]FIG. 6 is a diagram showing an example of a method for mounting a resonator on a smartphone. [Figure 7] FIG. 7 is a diagram showing an example of a protrusion in a modified example. [Figure 8] FIG. 8 is a diagram showing an example of a resonator in which the adhesive layer is omitted. [Figure 9] FIG. 9 is a diagram showing a first application example of the resonator. [Figure 10] FIG. 10 is an enlarged view of the vicinity of the resonator in the first application example. [Figure 11] FIG. 11 is a cross-sectional view taken along line AA in FIG. [Figure 12] FIG. 12 is a diagram showing an example of a method for attaching the cover member to the smartphone. [Figure 13] FIG. 13 is a diagram showing a second application example of the resonator. [Figure 14] FIG. 14 is a diagram showing an example of a method for attaching a side protection sheet to a smartphone. [Figure 15] FIG. 15 is a diagram illustrating a third application example of the resonator. [Figure 16] FIG. 16 is a first diagram showing an example of a method for attaching a back protective sheet to a smartphone. [Figure 17] FIG. 17 is a second diagram showing an example of a method for attaching a back protective sheet to a smartphone. DETAILED DESCRIPTION OF THE INVENTION

[0009] <Embodiment> The configurations of the following embodiments are merely examples, and the disclosed technology is not limited to the configurations of the embodiments. An antenna resonator according to the embodiments is, for example, an antenna resonator attached to the housing of a wireless terminal. The antenna resonator includes a main body provided with a parasitic conductive element that resonates with the antenna, and a protrusion that protrudes from the main body toward the housing of the attached wireless terminal. A tip of the protrusion contacts the housing of the attached wireless terminal, and the conductive element has a length of the longest line segment formed on the conductive element by connecting any two points on the conductive element within a range of 1.95 mm to 3.7 mm.

[0010] In the antenna resonator, the tip of the protrusion comes into contact with the housing of the wireless terminal. That is, no adhesive or the like is interposed between the tip of the protrusion and the housing of the wireless terminal. Therefore, a decrease in accuracy of the distance between the conductive element and the antenna due to the influence of adhesive or the like is suppressed. That is, the distance between the antenna of the wireless terminal and the conductive element provided in the antenna resonator can be determined with high accuracy.

[0011] Hereinafter, the embodiments will be further described with reference to the drawings. FIG. 1 is a diagram showing an example of a state in which a resonator 1 according to an embodiment is attached to a smartphone 2. The resonator 1 includes a resonator body 11, a main body 12, and an adhesive layer 13. The resonator 1 is disposed externally to the smartphone 2 and resonates with radio waves from a patch antenna 22 of the smartphone 2. In FIG. 1, the direction from the adhesive layer 13 toward the resonator body 11 is the +X direction, the direction from the back to the front of the page in FIG. 1 is the +Z direction, and the direction from the bottom to the top of the page in FIG. 1 is the +Y direction. The resonator 1 is an example of an "antenna resonator."

[0012] The smartphone 2 to which the resonator 1 is attached is a portable wireless communication terminal. A substrate 21 is disposed inside a housing 20 of the smartphone 2. A patch antenna 22 is provided on the substrate 21. The patch antenna 22 receives power from a power supply point (not shown) and outputs power in the +X direction. The patch antenna 22 emits radio waves in the millimeter wave band (frequency range of 24 to 300 GHz), for example. The smartphone 2 is an example of a "wireless terminal."

[0013] The resonator 1 is placed in the direction (+X direction) in which the patch antenna 22 of the smartphone 2 emits radio waves. The resonator 1 is placed with the tip surfaces 125 and 126 of the protrusions 121 and 122 facing the housing 20 of the smartphone 2.

[0014] The body 12 of the resonator 1 is formed, for example, from a dielectric material. The dielectric material forming the body 12 preferably has a relative dielectric constant of, for example, about 1 to 10. Examples of such dielectric materials include ABS resin, polycarbonate resin, silicone rubber, and thermoplastic polyurethane elastomer.

[0015] An adhesive layer 13 is provided on the bottom surface 123 of the main body 12 on the smartphone 2 side. The adhesive layer 13 is an adhesive formed from a resin with a relative dielectric constant of approximately 1 to 10. The resonator 1 is attached to the smartphone 2 by attaching the adhesive layer 13 to the housing 20 of the smartphone 2. The adhesive layer 13 is an example of an "adhesive layer."

[0016] Protrusions 121 and 122 are provided so as to protrude from the main body 12 toward the housing 20 of the smartphone 2. FIG. 2 is a diagram illustrating an example of the resonator 1 as viewed from the −X direction. The protrusions 121 and 122 are arranged at both ends of the main body 12 in the Y direction. The protrusions 121 and 122 have the same length. The protrusions 121 and 122 are arranged so as to sandwich the adhesive layer 13 in the Y direction. The protrusions 121 and 122 are provided so as to protrude from the bottom surface 123 toward the housing 20 of the smartphone 2 when the resonator 1 is attached to the smartphone 2. When the resonator 1 is attached to the housing 20 of the smartphone 2, tip surfaces 125 and 126 of the protrusions 121 and 122 come into contact with the housing 20 of the smartphone 2. The protrusions 121 and 122 are an example of a “protrusion.” The tip surfaces 125 and 126 are an example of a “tip portion.”

[0017] The resonators 11 are provided on the top surface 124 of the main body 12. FIG. 3 is a diagram illustrating an example of the resonator 1 as viewed from the +X direction. In the example of FIG. 3, four diamond-shaped resonators 11 are arranged in a row on the top surface 124 of the resonator 1 when viewed in the +X direction (front view). The resonator 1 may include one resonator 11 or two or more resonators 11. The resonator 1 may also include a plurality of resonators 11 arranged in two or more rows. The resonators 11 may have a shape other than a diamond, such as a circle, an ellipse, or a polygon such as a square or rectangle. The resonator 1 may also include resonators 11 of different shapes arranged side by side.

[0018] The resonator 11 is a parasitic element that does not receive power. The resonator 11 is an element obtained by processing a conductor such as a metal into a plate shape. The size of the resonator 11 is determined according to the wavelength of the radio waves used by the smartphone 2 for wireless communication and the dielectric constant of the dielectric material forming the main body 12. The thickness of the resonator 11 is, for example, 4 nm or more. Furthermore, the length of the longest line segment (also referred to as the longest line segment) among the line segments formed on the resonator 11 by connecting any two points on the resonator 11 is within a range of 1.95 to 3.7 mm. For example, if the resonator 11 is a polygon including a rectangle, the longest line segment can be the longest line segment of one side or diagonal thereof. For example, if the resonator 11 is a circle, the longest line segment can be the diameter. For example, if the resonator 11 is an ellipse, the longest line segment can be the major axis.

[0019] FIG. 4 is a diagram showing an example of the size of the resonator 1. With reference to FIG. 4, the size of the resonator 1 when the patch antenna 22 uses radio waves in the millimeter wave band will be described. The height H1 from the bottom surface 123 to the adhesive layer 131 is, for example, 150 μm. The height H2 from the bottom surface 123 to the tip surface 125 or the tip surface 126 is, for example, 200 μm. That is, The protrusions 121 and 122 protrude further toward the smartphone 2 than the adhesive layer 13. The height H3 from the bottom surface 123 to the top surface 124 is, for example, 1.0 mm. The height H4 of the resonator 11 from the top surface 124 is, for example, 4 nm or more.

[0020] In the resonator 1, the distance D1 between the resonator 11 and the patch antenna 22 is determined by the protrusions 121 and 122. A change in the distance D1 changes the performance gain of the patch antenna 22. FIG. 5 is a diagram illustrating the relationship between the distance between the resonator 11 and the patch antenna 22 and the performance gain of the patch antenna 22. FIG. 5 illustrates a case where the patch antenna 22 emits radio waves in the millimeter wave band. The vertical axis of FIG. 5 illustrates the performance gain (dBi) of the patch antenna 22 in the +X direction. The horizontal axis of FIG. 5 illustrates the distance D1 (mm) between the resonator 11 and the patch antenna 22.

[0021] Placing a component outside the resonator 1 will prevent radio wave radiation and reduce gain. On the other hand, to prevent deformation or damage when bonding or removing components, the resonator 1 needs to have a certain thickness. However, simply making the resonator 1 thicker increases the distance D1 between the resonator body 11 of the resonator 1 and the patch antenna 22, resulting in a sudden drop in the operating gain, as shown in the example of Figure 5.

[0022] Furthermore, considering that the smartphone 2 may be used alone without a protective cover, it is not necessarily desirable to reduce the wall thickness of the housing 20. For this reason, in order to improve the radio wave gain of the patch antenna 22 using an external module such as the resonator 1, more accurate dimensions of each component and assembly dimensions are required. Such an impact on the operating gain becomes more pronounced with higher-frequency millimeter waves.

[0023] Referring to FIG. 5, it can be seen that in order to maximize the operational gain of patch antenna 22 that emits millimeter-wave band radio waves, it is preferable that distance D1 be approximately 1.0 mm to 2.0 mm.

[0024] Here, the distance D2 from the patch antenna 22 of the smartphone 2 to the outer surface of the housing 20 varies depending on the model of the smartphone 2. The height of the protrusions 121, 122 may be determined appropriately according to the distance D2 (see FIG. 1) in the smartphone 2 to which the resonator 1 is to be attached, so that the distance D1 between the resonator body 11 and the patch antenna 22 falls within the range of 1.0 mm to 2.0 mm.

[0025] 6 is a diagram showing an example of a method for attaching the resonator 1 to the smartphone 2. When attaching the resonator 1, the resonator 1 is positioned so that the resonator body 11 and the patch antenna 22 overlap when viewed in the X direction, and then the top surface 124 is pressed from the +X direction toward the −X direction (toward the housing 20 of the smartphone 2). When the top surface 124 is pressed with a finger or the like, the main body 12 elastically deforms, and the adhesive layer 13 is pressed against the housing 20. When the adhesive layer 13 is pressed against the housing 20, the resonator 1 and the housing 20 are bonded together by the adhesive layer 13. When the force pressing the top surface 124 is released, the resonator 1 is attached to the smartphone 2, as shown in FIG. 1.

[0026] <Effects of the embodiment> 4, the effect of improving the operational gain of the patch antenna 22 by the resonator 11 varies depending on the distance D1 between the resonator 11 and the patch antenna 22. In this embodiment, the protrusions 121 and 122 determine the distance D1 between the resonator 11 and the patch antenna 22 to be a distance suitable for improving the operational gain of the patch antenna 22. Therefore, the operational gain of the patch antenna 22 can be improved as much as possible by the resonator 1 provided as a separate member from the smartphone 2.

[0027] In the resonator 1, the adhesive layer 13 is formed lower than the protrusions 121 and 122 (so as not to protrude toward the housing 20). This prevents the resonator 11 from being moved away from the patch antenna 22 by the elastic force of the adhesive layer 13. This also allows the resonator 1 to determine the distance D1 between the resonator 11 and the patch antenna 22 with high precision.

[0028] <Modification> In the embodiment described above, the protrusions 121 and 122 are provided to sandwich the adhesive layer 13 when viewed in the X direction. However, the protrusions 121 and 122 are not limited to this arrangement. FIG. 7 is a diagram showing an example of a protrusion in a modified example. In a resonator 1A according to the modified example, instead of the protrusions 121 and 122, a protrusion 121A is provided to surround the adhesive layer 13 when viewed in the X direction. Such a protrusion 121A also makes it possible to determine the distance D1 between the patch antennas 22 to be a distance suitable for improving the operational gain of the patch antennas 22.

[0029] <Application example> In the embodiment described above, the resonator 1 is attached to the smartphone 2 by the adhesive layer 13. However, the resonator 1 may be attached to the smartphone 2 by means other than the adhesive layer 13. Below, an example will be described in which the resonator 1 is applied to the case of the smartphone 2 as a means for attaching the resonator 1 to the smartphone 2.

[0030] <First application example> 8 is a diagram showing an example of a resonator 1B in which the adhesive layer 13 is omitted. In the application example described below, the resonator 1B is attached to the smartphone 2 by a means other than the adhesive layer 13, and therefore the adhesive layer 13 is omitted from the resonator 1B.

[0031] FIG. 9 is a diagram illustrating a first application example of the resonator 1B. In the first application example, a cover member 500 will be described in which the resonator 1B is arranged in a frame-shaped resin member 501 that surrounds the side surface of the smartphone 2. The cover member 500 is formed of, for example, an elastic material such as resin. In the cover member 500, the resonator 1B is embedded in the resin member 501 that forms the cover member 500 at positions corresponding to patch antennas 22 included in the smartphone 2 to which the cover member 500 is to be attached. In the example of FIG. 9, the smartphone 2 to which the cover member 500 is to be attached is assumed to have three patch antennas 22, and the resonators 1B are embedded in three positions in the resin member 501. The resin member 501 is an example of a "frame member."

[0032] 10 is an enlarged view of the vicinity of resonator 1B in the first application example. Resonator 1B is disposed within resin member 501 such that protrusions 121 and 122 face the inside of cover member 500. Preferably, tip surfaces 125 and 126 are exposed to the inside of cover member 500. That is, preferably, exposure holes exposing tip surfaces 125 and 126 are formed on the inside of cover member 500 at positions corresponding to tip surfaces 125 and 126. By exposing tip surfaces 125 and 126 to the inside of cover member 500, tip surfaces 125 and 126 can contact housing 20 without resin member 501 therebetween. Therefore, the influence of elasticity of resin member 501, etc., on distance D1 between resonator 11 and patch antenna 22 can be suppressed.

[0033] Fig. 11 is a cross-sectional view taken along line AA in Fig. 10. For reference, Fig. 11 also illustrates the smartphone 2 with the cover member 500 attached. The resin member 501 of the cover member 500 is provided with restricting portions 502 and 503 that are arranged to sandwich the attached smartphone 2 in the thickness direction. By providing such restricting portions 502 and 503, it is possible to prevent the smartphone 2 from shifting in the thickness direction when the smartphone 2 is attached to the cover member 500. is suppressed.

[0034] 12 is a diagram showing an example of a method for attaching the cover member 500 to the smartphone 2. To attach the cover member 500, for example, the resin member 501 is expanded in the width direction, the smartphone 2 is accommodated in a frame formed by the resin member 501, and then the expanded resin member 501 is returned to its original position. In the first application example, since the resonator 1B is embedded in the resin member 501, the resonator 1B can be disposed in a position suitable for improving the operating gain of the patch antenna 22 by the simple task of attaching the cover member 500 to the smartphone 2. Consequently, the position of the resonator 1B can be determined with high accuracy.

[0035] <Second application example> In the second application example, a first example will be described in which the resonator 1B is arranged on a sheet-like adhesive sheet. FIG. 13 is a diagram showing the second application example of the resonator 1B. In the second application example, a side protective sheet 600 will be described in which the resonator 1B is arranged on a sheet-like adhesive sheet 601 made to fit the shape of the side of the smartphone 2. The side protective sheet 600 is an example of a "protective member."

[0036] Adhesive is applied to the surface of adhesive sheet 601 opposite to the surface on which resonator 1B is disposed. Also, connector holes 602 are provided in adhesive sheet 601, penetrating the adhesive sheet 601 in the thickness direction at positions corresponding to protrusions such as connectors of smartphone 2. Furthermore, it is preferable that exposure holes are formed in adhesive sheet 601 at positions corresponding to tip surfaces 125, 126, exposing tip surfaces 125, 126 toward the side surfaces of housing 20. Adhesive sheet 601 is an example of a "protective sheet attached to the side surface of the housing." Connector holes 602 are an example of a "connector hole."

[0037] FIG. 14 is a diagram showing an example of a method for attaching side surface protective sheet 600 to smartphone 2. In FIG. 14, patch antenna 22 of smartphone 2 is illustrated by a dotted line. FIG. 14 also illustrates connector 23 used by smartphone 2 to connect to an external device. To attach side surface protective sheet 600 to smartphone 2, first, the position of connector hole 602 is aligned with the position of connector 23. The position for adhering side surface protective sheet 600 is determined based on connector hole 602 and connector 23. Connector 23 is an example of a "connector for connecting an external device."

[0038] After determining the position for adhering the side surface protection sheet 600, the connector holes 602 can be adhered along the side surface of the housing 20. According to the second application example, the resonator 1B can be placed in a position suitable for improving the operating gain of the patch antenna 22 by the simple task of adhering the side surface protection sheet 600 to the side surface of the smartphone 2.

[0039] Since the side surface protection sheet 600 is provided with the connector holes 602, the adhesion position of the side surface protection sheet 600 can be determined with high accuracy by the simple task of aligning the positions of the connector holes 602 with the positions of the connectors 23. Consequently, the relative position of the resonator 1B with respect to the patch antenna 22 can be determined with high accuracy.

[0040] <Third application example> In the third application example, a second example will be described in which the resonator 1B is arranged on a sheet-like adhesive sheet. FIG. 15 is a diagram showing the third application example of the resonator 1B. In the third application example, a back protective sheet 700 will be described in which the resonator 1B is arranged on a sheet-like adhesive sheet 701 made to fit the shape of the back of the smartphone 2. The back protective sheet 700 is an example of a "protective member."

[0041] Adhesive is applied to the surface of adhesive sheet 701 opposite to the surface on which resonator 1B is disposed. Also, camera hole 702 is provided in adhesive sheet 701, penetrating the adhesive sheet 701 in the thickness direction at a position corresponding to the camera protrusion of smartphone 2. Camera hole 702 is made slightly larger than the camera protrusion of smartphone 2. Adhesive sheet 701 is an example of a "protective sheet attached to the rear surface of a housing." Camera hole 702 is an example of a "camera hole."

[0042] The adhesive sheet 701 is provided with a bendable portion 703 that is bent toward the side surface of the housing 20 of the smartphone 2. The resonator 1B is disposed on the bendable portion 703. The positions of the bendable portion 703 and the resonator 1B disposed on the bendable portion 703 are determined according to the position of the patch antenna 22 provided on the smartphone 2 that is to be protected by the back protective sheet 700. Furthermore, it is preferable that the bendable portion 703 has exposure holes formed at positions corresponding to the tip surfaces 125, 126, which expose the tip surfaces 125, 126 toward the side surface of the housing 20.

[0043] 16 and 17 are diagrams showing an example of a method for attaching the back protective sheet 700 to the smartphone 2. As shown in the example of Fig. 16, the position of the camera hole 702 is aligned with the position of the camera module 24 provided in the smartphone 2. The position for adhering the back protective sheet 700 is determined based on the camera hole 702 and the camera module 24.

[0044] After determining the position where rear protective sheet 700 is to be attached, bendable portion 703 is bent toward the side surface of housing 20. By bending bendable portion 703 toward the side surface of housing 20, the relative positional relationship between patch antenna 22 and resonator 1B is determined, as illustrated in FIG.

[0045] Since the rear surface protective sheet 700 is provided with the camera hole 702, the adhesion position of the rear surface protective sheet 700 can be determined with high accuracy by the simple task of aligning the position of the camera hole 702 with the position of the camera module 24. Consequently, the relative position of the resonator 1B with respect to the patch antenna 22 can be determined with high accuracy.

[0046] Although the resonator 1B is employed in the application examples described above, each application example may employ the resonator 1. Furthermore, the embodiments, modifications, and application examples disclosed above can be combined with each other. [Explanation of symbols]

[0047] 1...resonator 1A·Resonator 1B··Resonator 11...resonator 12 Main body 121·Protrusion 122·Protrusion 123··Bottom 124...Top surface 125...Tip surface 126...Tip surface 13·Adhesive layer 2. Smartphone 20··Case 21··Substrate 22 Patch Antenna 23··Connector 24··Camera module 500··Cover material 501··Resin material 502 Regulatory Department 503 Regulatory Department 600··Side protection sheet 601··Adhesive sheet 602 Connector hole 700··Back protection sheet 701··Adhesive sheet 702 Camera hole 703 ··Bending part

Claims

1. An antenna resonator attached to a housing of a wireless terminal having an antenna that communicates using millimeter-wave radio waves, a main body provided with a parasitic conductive element that resonates with the antenna; a protrusion protruding from the main body toward the housing of the attached wireless terminal, the antenna resonator is attached to the outside of the housing, a tip end of the protrusion contacts an outer surface of the housing of the attached wireless terminal; the length of the longest line segment formed on the conductive element by connecting any two points on the conductive element is within a range of 1.95 mm to 3.7 mm; Antenna resonator.

2. an adhesive layer that adheres the antenna resonator to the housing; a plurality of the protrusions are provided on the main body, The adhesive layer is disposed between the plurality of protrusions.

2. The antenna resonator according to claim 1.

3. an adhesive layer that adheres the antenna resonator to the housing; The protrusion is formed in a frame shape when viewed from the tip end, The adhesive layer is disposed within a frame formed by the protrusion.

2. The antenna resonator according to claim 1.

4. the conductive element includes a conductive element formed in a polygonal shape in a front view, The longest line segment is the length of one side of the conductor element formed in the polygon, or the longest line segment among the diagonals of the conductor element formed in the polygon.

2. The antenna resonator according to claim 1.

5. the conductive element includes a conductive element formed in a circular shape in a front view, The longest line segment is the diameter of the circularly formed conductive element.

2. The antenna resonator according to claim 1.

6. A protective member for a wireless terminal that is arranged to surround the side of a housing of a wireless terminal formed in a plate shape, a frame-shaped frame member formed of an elastic material and surrounding a side surface of the wireless terminal to be attached; the antenna resonator according to any one of claims 1 to 5, which is disposed in the frame member; an exposure hole for exposing the tip portion toward a side surface of the housing is provided at a position corresponding to the tip portion of the frame member; Protective material for wireless terminals.

7. A protective member for a wireless terminal, which is formed in a plate shape and is attached to a side surface of a housing of a wireless terminal having a connector for connecting an external device, a protective sheet attached to the side surface of the housing; the antenna resonator according to any one of claims 1 to 5, which is disposed on the protective sheet; a connector hole penetrating the protective sheet in a thickness direction is provided at a position of the protective sheet corresponding to the connector; an exposure hole for exposing the tip portion toward a side surface of the housing is provided at a position of the protective sheet corresponding to the tip portion; Protective material for wireless terminals.

8. A protective member for a wireless terminal formed in a plate shape and attached to a rear surface of a housing of a wireless terminal having a camera on the rear surface of the housing, a protective sheet attached to the rear surface of the housing; a bendable portion connected to the protective sheet and bent toward a side surface of the housing; the antenna resonator according to any one of claims 1 to 5, which is disposed on the bent portion; a camera hole penetrating the protective sheet in a thickness direction at a position of the protective sheet corresponding to the camera; an exposure hole for exposing the tip end of the bent portion toward the side surface of the housing is provided at a position corresponding to the tip end of the bent portion; Protective material for wireless terminals.

Images