Building component and building

Abstract

To achieve high radio wave transmission property while maintaining high thermal insulation property in a building.SOLUTION: A building component used as part of a building has a plurality of radio wave transmitting sections, and each radio wave transmitting section of the plurality of radio wave transmitting sections has thermal insulation and radio wave transmission properties.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a technique for improving radio wave penetration in a building. [Background technology]

[0002] In recent years, the thermal insulation performance of houses has been improved. For example, in order to improve the thermal insulation performance of houses, insulating materials having high thermal insulation performance are used on the walls or roofs of houses. In addition, for example, double-glazed glass having high thermal insulation performance is used for windows of houses.

[0003] Furthermore, in order to achieve high insulation performance in housing, the insulation material is often made thicker or a metal-coated insulation material is used. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2021-172583 A Summary of the Invention [Problem to be solved by the invention]

[0005] Although the use of the above-mentioned insulating materials can achieve high insulating performance, it has the drawback of making it difficult for radio waves for wireless communication to pass between indoors and outdoors. This problem is not limited to homes, but can occur in buildings in general.

[0006] The present invention has been made in consideration of the above-mentioned points, and has an object to provide a technique for achieving high radio wave transmittance while maintaining high thermal insulation performance in a building. [Means for solving the problem]

[0007] According to the disclosed technology, there is provided a construction member used as a part of a building, comprising: A plurality of radio wave transmitting parts are provided, Each of the plurality of radio wave transparent portions has thermal insulation properties and radio wave transparency properties. A building component is provided. Effect of the Invention

[0008] According to the disclosed technology, it is possible to achieve high radio wave transparency in a building while maintaining high insulation performance. [Brief description of the drawings]

[0009] [Figure 1] 1 is a diagram showing an example of a configuration in which a plurality of radio wave transmitting portions 10 are provided in building components (walls, roof, etc.) that constitute a house. [Diagram 2] FIG. 2 is a diagram showing the appearance of a house 200 in the first embodiment. [Diagram 3] 2 is a diagram for explaining the structure of a panel 100. FIG. [Figure 4] FIG. 11 is a diagram showing a comparison of radio wave transmission characteristics for different panel materials. [Diagram 5] FIG. 11 is a diagram showing a comparison of heat insulating performance for different panel materials. [Figure 6] FIG. 1 is a diagram showing a comparison of thermal insulation performance for thermal insulation materials. [Figure 7] FIG. 11 is a diagram showing the appearance of a house 200 in a second embodiment. [Figure 8] 2 is a diagram for explaining the structure of a glass window 110. FIG. [Figure 9] 2 is a diagram for explaining the structure of a glass window 110. FIG. [Figure 10] FIG. 1 is a diagram showing a comparison of radio wave transmission characteristics for different types of glass. [Figure 11] FIG. 1 is a diagram showing a comparison of heat insulating performance for different types of glass, etc. [Figure 12] FIG. 11 is a diagram showing the appearance of a house 200 in a third embodiment. [Figure 13] FIG. 11 is a diagram showing the appearance of a house 200 in a fourth embodiment. [Figure 14] FIG. 13 is a diagram showing the appearance of a house 200 in a fifth embodiment. [Figure 15]FIG. 13 is a diagram showing the inside of a house 200 in a sixth embodiment. [Figure 16] FIG. 13 is a diagram showing the inside of a house 200 in a seventh embodiment. [Figure 17] FIG. 13 is a diagram showing the inside of a house 200 in an eighth embodiment. [Figure 18] FIG. 1 is a diagram showing an example of the exterior of a house 200 that combines multiple embodiments. [Figure 19] FIG. 13 is a diagram showing the appearance of an office building 600 in a ninth embodiment. [Figure 20] FIG. 13 is a diagram for explaining simulation parameters. [Figure 21] FIG. 13 is a diagram for explaining simulation parameters. [Figure 22] FIG. 13 is a diagram showing a simulation result. [Figure 23] FIG. 13 is a diagram showing a simulation result. [Figure 24] FIG. 13 is a diagram showing a simulation result. [Diagram 25] FIG. 13 is a diagram showing a simulation result. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention (the present embodiment) will be described with reference to the drawings. The embodiment described below is merely an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

[0011] In the following embodiment, an example will be described in which the construction member according to the present invention is applied to a house and an office building, but the construction member according to the present invention can also be applied to buildings other than a house and an office building.

[0012] (Outline of the embodiment) A house is made up of various building components such as exterior walls, interior walls, roofs, floors, ceilings, windows, and doors.

[0013] In this embodiment, a plurality of areas that transmit radio waves (radio wave transmitting areas) are provided in a part of a specific building material among various building materials that compose a house, and a radio wave transmitting part that transmits radio waves and contains a material with heat insulating properties is arranged in each radio wave transmitting area. In the embodiment described later, the radio wave transmitting part is called a "radio wave window."

[0014] The shape of the radio wave transparent portion that can be seen when a building component (a component having a planar structure) having the radio wave transparent portion is viewed from the front is not limited to a specific shape, and may be rectangular, circular, or any other shape. The material used for the radio wave transparent portion is, for example, aerogel. Figure 1 shows an example of a configuration in which multiple radio wave transparent portions 10 are provided on building components (walls, roofs, etc.) that constitute a house.

[0015] As more specific examples, Examples 1 to 9 will be described below. Any two or more of Examples 1 to 9 can be combined and practiced.

[0016] Example 1 First, a description will be given of Example 1. Fig. 2 shows the appearance of a house 200 in Example 1. As shown in Fig. 2, a base station device 300 for wireless communication is installed outdoors. Also, it is assumed that a movable mobile terminal for mobile communication is installed indoors in the house 200.

[0017] In the first embodiment, a panel 100 constituting a wall of a house 200 is provided with a plurality of rectangular (or circular) radio wave windows 10. Radio waves pass between the outdoors and the indoors through the radio wave windows 10, and good wireless communication can be performed between the base station device 300 and the mobile terminal.

[0018] In the example of Figure 2, multiple radio wave windows 10 are provided in one panel 100 constituting a wall on the first floor of a house 200, but multiple radio wave windows 10 may be provided in multiple panels 100 on the wall.

[0019] Fig. 3 shows an example of the structure of panel 100. As shown in Fig. 3, a plurality of rectangular (or circular) holes are distributed on panel 100, and radio wave windows 10 of the same shape as the holes are embedded in each hole.

[0020] 3, as shown in an enlarged view, the radio wave window 10 has a structure in which a heat insulating material 13 is sandwiched between two parallel-arranged plates 11 and 12. The plates 11 and 12 are, for example, acrylic plates, glass plates, or wooden plates.

[0021] The heat insulating material 13 is a material that has heat insulating properties and transmits radio waves, such as aerogel, glass wool, polyethylene foam, Styrofoam (registered trademark), and the like.

[0022] A mobile terminal in a house 200 constructed using the panel 100 can transmit and receive radio signals for wireless communication with an outdoor base station device 300 through the radio window 10 in the panel 100. Therefore, the radio wave quality of wireless communication can be improved compared to when the panel 100 is not used.

[0023] Figure 4 shows a comparison of radio wave transmission characteristics between aerogel (A) and materials commonly used as housing panels. In Figure 4, the higher the measured loss value, the lower the radio wave transmission. "(1)+(3)+(5)+(7)" and "(2)+(4)+(6)+(7)" in Figure 4 are both materials commonly used as housing panels. As shown in Figure 4, aerogel allows radio waves to pass through more easily than other materials.

[0024] Figure 5 shows a comparison of the thermal insulation performance between aerogel (A) and materials commonly used as housing panels. In Figure 5, the smaller the U value, the higher the thermal insulation. "(1)+(3)+(5)+(7)" and "(2)+(4)+(6)+(7)" in Figure 5 are both materials commonly used as housing panels. As shown in Figure 5, aerogel has high thermal insulation.

[0025] A comparison of thermal conductivity between aerogel and materials commonly used as insulation for housing (Neoma foam, urethane foam, glass wool) is shown in Figure 6. As shown in Figure 6, aerogel has a lower thermal conductivity than other insulation materials.

[0026] Example 2 Next, a description will be given of Example 2. Fig. 7 shows the appearance of a house 200 in Example 2. As in Example 1, it is assumed that a base station device 300 for wireless communication is installed outdoors, and a movable mobile terminal for mobile communication is installed indoors of the house 200.

[0027] In the second embodiment, a glass window 110 having a plurality of radio wave windows 10 arranged therein is used as a glass window for use in a house 200. In the house 200, only one glass window 110 may be used, or a plurality of glass windows 110 may be used as shown in FIG. 7. In the second embodiment, the radio wave window 10 is transparent, and light can be taken in from the outdoors to the indoors through the radio wave window 10. Note that "transparent" in this specification does not have to mean completely transparent.

[0028] In the example of FIG. 7, a two-story house 200 has a plurality of glass windows 110 provided on each of the first floor walls and the second floor walls.

[0029] Fig. 8 shows an example of the structure of a glass window 110 (front view). As shown in Fig. 8, the glass window 110 is made from a window using Low-E glass. Low-E glass is a glass material used for heat insulation in houses, offices, etc. Low-E glass is glass whose surface is coated with a Low-E metal film (e.g., tin oxide or silver).

[0030] FIG. 9 shows an example of the cross-sectional structure of a glass window 110. FIG. 9(a) shows a cross-section of a glass window 110 made of a double-glazed structure with a structure in which dry air is sandwiched between a Low-E glass 33 having a Low-E metal film and a normal glass 34 (FL part). A part of the thin Low-E metal film of the Low-E glass 33 is cut into a rectangular shape (it may be a circular shape), and a plate-shaped radio wave transparent material having the same shape as the hole is embedded in the hole made by cutting the Low-E metal film. The part where the radio wave transparent material is embedded becomes the radio wave window 10. The radio wave transparent material before embedding may also be called the radio wave window 10. The radio wave transparent material is a transparent material that has heat insulation properties and transmits radio waves, such as aerogel. As shown in FIG. 8, there are parts where the Low-E metal film has been cut out, and two of them are shown as 22 and 23 in FIG. 9(a). In the example of FIG. 9(a), a radio wave transmitting material (here, aerogel) is placed between the part of the Low-E glass 33 where the Low-E metal film has been cut out and the normal glass .

[0031] 9(b) shows a cross section of a triple-glazed glass window 110 having a Low-E glass 35 with a Low-E metal film, a normal glass 36, and a Low-E glass 37 with a Low-E metal film. Argon gas is sealed between the Low-E glass 35 and the glass 36, and argon gas is also sealed between the glass 36 and the Low-E glass 37.

[0032] There are portions of the Low-E glass 35 where the Low-E metal film has been cut out, and two of these are shown as 24 and 25 in Fig. 9(b). In the example of Fig. 9(b), a radio wave transparent material (aerogel) is disposed between the portion of the Low-E glass 35 where the Low-E metal film has been cut out and the glass 36. In addition, at the same position as the portion where the Low-E metal film has been cut out, a radio wave transparent material (aerogel) is disposed between the portion of the Low-E glass 37 where the Low-E metal film has been cut out and the glass 36.

[0033] A mobile terminal in a house 200 constructed using a glass window 110 can transmit and receive radio signals for wireless communication with an outdoor base station device 300 through the radio window 10 in the glass window 110. Therefore, the radio wave quality of wireless communication can be improved compared to a case where the glass window 110 is not used.

[0034] Figure 10 shows a comparison of radio wave transmission characteristics between aerogel, low-E double glazing, and low-E triple glazing. In Figure 10, the higher the measured loss value, the lower the radio wave transmission. As shown in Figure 10, aerogel allows radio waves to pass through more easily than low-E double glazing and low-E triple glazing.

[0035] A comparison of the thermal insulation performance between aerogel, low-E double glass, and low-E triple glass is shown in Figure 11. As shown in Figure 11, aerogel has high thermal insulation performance similar to that of low-E triple glass.

[0036] Example 3 Next, a third embodiment will be described. Fig. 12 shows the appearance of a house 200 in the third embodiment. As shown in Fig. 2, it is assumed that a base station device 400 for wireless communication is located outdoors, and a movable mobile terminal for mobile communication is located inside the house 200. In the third embodiment, it is assumed that the base station device 400 is located in the sky.

[0037] In the third embodiment, a plurality of radio-controlled windows 10 are distributed on the roof 40 of the house 200. The "roof" is an example of a building component. The "roof" as a building component does not have to be the entire roof, and may be a part of the entire roof.

[0038] More specifically, in the example of Figure 12, a number of rectangular (or circular) holes are provided on the surface of roof 40 facing the sky, and radio window 10, which is a structure of the same shape as the hole, is embedded in each hole.

[0039] The radio wave window 10 is a plate-shaped structure made of a transparent material (such as aerogel) that has heat insulation properties and transmits radio waves. The radio wave window 10 of the third embodiment may have a structure similar to that of the radio wave window 10 shown in FIG. 3 of the first embodiment.

[0040] As the radio wave window 10 of the third embodiment, the panel 100 described in the first embodiment may be used, or the glass window 110 described in the second embodiment may be used.

[0041] A mobile terminal in a house 200 constructed with a roof 40 having a radio window 10 can transmit and receive radio signals for wireless communication with an outdoor base station device 400 through the radio window 10. Therefore, the radio wave quality of wireless communication can be improved compared to a case where the radio window 10 is not used.

[0042] Example 4 Next, a fourth embodiment will be described. Fig. 13 shows an external view of a house 200 in the fourth embodiment. As shown in Fig. 13, it is assumed that a base station device 300 for wireless communication is installed outdoors, and a movable mobile terminal for mobile communication is installed indoors of the house 200.

[0043] In the fourth embodiment, a plurality of radio wave windows 10 are provided in a distributed manner on a door 50 of a house 200. More specifically, a plurality of rectangular (or circular) holes are provided on the door 50, and a radio wave window 10, which is a structure having the same shape as the hole, is embedded in each hole.

[0044] The radio wave window 10 is a plate-shaped structure made of a transparent material (such as aerogel) that has heat insulation properties and transmits radio waves. The radio wave window 10 of the fourth embodiment may have a structure similar to that of the radio wave window 10 shown in FIG. 3 of the first embodiment.

[0045] Furthermore, in the case where the door 50 has a glass window 51 (assuming that Low-E glass is used), a plurality of radio wave windows 10 may be provided distributed on the glass window 51. Figure 13 shows this case.

[0046] In this case, more specifically, the metal film at the position of the radio wave window 10 on the surface of the glass window 51 is cut into a rectangular shape (or a circular shape), and the radio wave window 10, which is a structure having the same shape as the hole, is embedded in the hole. The radio wave window 10 is a plate-like structure made of a transparent material (aerogel, etc.) that has thermal insulation properties and transmits radio waves. The glass window 110 described in the second embodiment may be used as the glass window 51.

[0047] A mobile terminal in a house 200 constructed using a door 50 having a radio window 10 can transmit and receive radio signals for wireless communication with an outdoor base station device 300 through the radio window 10. Therefore, the radio wave quality of wireless communication can be improved compared to a case where the radio window 10 is not used.

[0048] Example 5 Next, a fifth embodiment will be described. Fig. 14 shows an external view of a house 200 in the fifth embodiment. As shown in Fig. 14, it is assumed that a base station device 300 for wireless communication is installed outdoors, and a movable mobile terminal for mobile communication is installed indoors of the house 200.

[0049] In the fifth embodiment, a plurality of radio wave windows 10 are provided distributed on an exterior wall 60 of a house 200. The exterior wall is an example of a building material.

[0050] More specifically, a plurality of rectangular (or circular) holes are provided in the outer wall 60, and in each hole, a radio wave window 10, which is a structure having the same shape as the hole, is embedded. The radio wave window 10 is a plate-shaped structure made of a material (such as aerogel) that has heat insulation and transmits radio waves. The radio wave window 10 of the fifth embodiment may have the same structure as the radio wave window 10 shown in FIG. 3 of the first embodiment.

[0051] A mobile terminal in a house 200 constructed using an exterior wall 60 having a radio window 10 can transmit and receive radio signals for wireless communication with an outdoor base station device 300 through the radio window 10. Therefore, the radio wave quality of wireless communication can be improved compared to a case where the radio window 10 is not used.

[0052] Example 6 Next, a sixth embodiment will be described. Fig. 15 shows the interior of a house 200 in the sixth embodiment. Fig. 15 corresponds to a view of the interior (indoors) of the first floor of the house 200 as viewed obliquely from above. As shown in Fig. 15, a base station device 300 for wireless communication is installed outdoors, and inside the house 200, an access point 1 for wireless communication is installed in room A, and a movable mobile terminal 2 for mobile communication is installed in room B.

[0053] In the sixth embodiment, a plurality of radio wave windows 10 are provided distributed on an inner wall 70 that separates a room A from a room B in a house 200. The inner wall is an example of a building material.

[0054] More specifically, for example, the panel 100 described in the first embodiment (FIG. 3) is used as the inner wall 70. That is, a plurality of rectangular (or circular) holes are distributed in the panel 100, and in each hole, a radio wave window 10 having the same shape as the hole is embedded.

[0055] As explained in Fig. 3 of the first embodiment, the radio wave window 10 has a structure in which a heat insulating material is sandwiched between two parallel-arranged plates. The plates are, for example, acrylic plates, glass plates, wooden plates, etc. The heat insulating material is a material that has heat insulating properties and transmits radio waves, such as aerogel, glass wool, polyethylene foam, styrofoam, etc.

[0056] A mobile terminal 2 in room B of a house 200 constructed using one or more panels 100 as an interior wall 70 can transmit and receive radio signals for wireless communication with an access point 1 in room A through a radio window 10. This improves the radio wave quality of indoor wireless communication.

[0057] Moreover, the mobile terminal 2 can perform wireless communication with the outdoor radio base station 300 through the radio wave window 10. This improves the radio wave quality of the wireless communication between the mobile terminal 2 and the outdoor radio base station 300. By combining the sixth embodiment with any one of the first to fifth embodiments, the mobile terminal 2 can perform better wireless communication with the outdoor radio base station 300.

[0058] Example 7 Next, a seventh embodiment will be described. Fig. 16 shows the interior of a house 200 in the seventh embodiment. Fig. 16 corresponds to a view of the interior (indoors) of the first and second floors of the house 200 as viewed obliquely from above. As shown in Fig. 16, a base station device 300 for wireless communication is installed outdoors, and inside the house 200, an access point 1 for wireless communication is installed in room A on the second floor, and a mobile terminal 2 for mobile communication that is movable is installed in room B below room A.

[0059] In the seventh embodiment, a plurality of radio wave windows 10 are provided in a distributed manner on a floor slab 80 that separates floors in a house 200. Note that the "floor slab" may also be called a "floor".

[0060] More specifically, a plurality of rectangular (or circular) holes are provided in the floor slab 80, and in each hole, a radio window 10, which is a structure having the same shape as the hole, is embedded.

[0061] The radio wave window 10 is a plate-like structure made of a material (aerogel, glass wool, polyethylene foam, styrofoam, etc.) that has heat insulating properties and transmits radio waves. The radio wave window 10 of the seventh embodiment may have the same structure as the radio wave window 10 shown in FIG. 3 of the first embodiment. The panel 100 described in the first embodiment may be used as the floor slab 80.

[0062] A mobile terminal 2 in a room B of a house 200 constructed using a floor slab 80 having a radio window 10 can transmit and receive radio signals for wireless communication with an access point 1 in a room A on an upper floor through the radio window 10 in the floor slab 80. This improves the radio wave quality of indoor wireless communication.

[0063] Moreover, the mobile terminal 2 can perform wireless communication with the outdoor radio base station 300 through the radio wave window 10. This improves the radio wave quality of the wireless communication between the mobile terminal 2 and the outdoor radio base station 300. By combining the seventh embodiment with any one of the first to fifth embodiments and the sixth embodiment, the mobile terminal 2 can perform better wireless communication with the outdoor radio base station 300.

[0064] Example 8 Next, an eighth embodiment will be described. Fig. 17 shows the interior of a house 200 in the eighth embodiment. Fig. 17 corresponds to a view of the interior (indoors) of the first floor of the house 200 viewed from diagonally above. As shown in Fig. 17, a base station device 300 for wireless communication is installed outdoors, and inside the house 200, an access point 1 for wireless communication is installed in room A, and a movable mobile terminal 2 for mobile communication is installed in room B.

[0065] In the eighth embodiment, a door 85 is installed on an inner wall 70 that separates a room A from a room B in a house 200. The door 85 is provided with a plurality of radio wave windows 10.

[0066] More specifically, a plurality of rectangular holes (or circular holes) are provided in door 85, and radio wave window 10, which is a structure having the same shape as the hole, is embedded in each hole.

[0067] The radio wave window 10 is a plate-shaped structure made of a transparent material (such as aerogel) that has heat insulation and transmits radio waves. The radio wave window 10 of the eighth embodiment may have a structure similar to that of the radio wave window 10 shown in FIG. 3 of the first embodiment.

[0068] Furthermore, in the case where the door 85 has a glass window (assuming that Low-E glass is used), the glass window may be provided with a plurality of radio wave windows 10.

[0069] In this case, more specifically, the metal film at the position of the radio wave window 10 on the surface of the glass window is cut into a rectangular shape (or a circular shape), and the radio wave window 10, which is a structure having the same shape as the hole, is embedded in the hole. The radio wave window 10 is a plate-like structure made of a transparent material (aerogel, etc.) that has thermal insulation properties and transmits radio waves. The glass window 110 described in Example 2 may be used as the glass window in this case.

[0070] A mobile terminal 2 in a room B in a house 200 constructed using an inner wall 70 having a door 85 can transmit and receive radio signals for wireless communication with an access point 1 in a room A through a radio window 10 in the door 85. This improves the radio wave quality of indoor wireless communication.

[0071] Moreover, the mobile terminal 2 can perform wireless communication with the outdoor radio base station 300 through the radio wave window 10. This improves the radio wave quality of the wireless communication between the mobile terminal 2 and the outdoor radio base station 300. By combining the eighth embodiment with any one of the first to fifth embodiments, the mobile terminal 2 can perform better wireless communication with the outdoor radio base station 300.

[0072] As described above, a plurality of the embodiments may be combined. An example of the exterior of the house 200 in the case where a plurality of the embodiments are combined is shown in FIG.

[0073] Example 9 Next, a ninth embodiment will be described. The ninth embodiment is an embodiment related to an office building. FIG. 19 shows the appearance of an office building 600 in the ninth embodiment. The interior of the top floor of the office building 600 is also shown. As shown in FIG. 19, it is assumed that a base station device 500 for wireless communication is installed in a room A on the top floor, and a movable mobile terminal 2 for mobile communication is installed outdoors.

[0074] In the ninth embodiment, a plurality of radio-controlled windows 10 are provided on an exterior wall 90 of an office building 600 .

[0075] More specifically, for example, the panel 100 described in the first embodiment (FIG. 3) is used as the exterior wall 90. That is, a plurality of rectangular (or circular) holes are distributed on the panel 100, and a radio wave window 10 having the same shape as the hole is embedded in each hole.

[0076] As explained in Fig. 3 of the first embodiment, the radio wave window 10 has a structure in which a heat insulating material is sandwiched between two parallel-arranged plates. The plates are, for example, acrylic plates, glass plates, wooden plates, etc. The heat insulating material is a material that has heat insulating properties and transmits radio waves, such as aerogel, glass wool, polyethylene foam, styrofoam, etc.

[0077] Through the radio wave window 10 in the exterior wall 90, radio waves can pass between the outdoors and the indoors, and wireless communication can be performed between the base station device 500 and the mobile terminal 2. Therefore, the radio wave quality of wireless communication can be improved compared to a case where the radio wave window 10 is not provided.

[0078] (Effects of the Technology According to the Embodiments) The technology described above makes it possible to realize high radio wave transmission while maintaining high thermal insulation performance in a building, thereby improving the radio wave environment inside the building.

[0079] <About the simulation> The effect was confirmed by a simulation, which will be explained below. In this simulation, the path of radio waves from an outdoor base station to indoors was simulated, and the effect of improving the radio wave reception strength inside a house by installing a radio wave window in the wall of the house was confirmed. The simulation specifications are as follows. The contents explained below are also shown in Figures 20 and 21.

[0080] In this simulation, the height of each floor is 2.4 m, and the radio wave propagation analysis is performed with the receiving point being 1.0 m above ground inside the first floor of a two-floor house. An intermediate layer 0.5 m thick is placed between each floor and above the top floor. The exterior wall of the first floor is divided into sections 0.6 m high, and called h1, h2, h3, and h4 from the bottom.

[0081] We calculate the indoor received power value for each of the cases where a radio window is installed at h1 (Figure 20) and h3 (Figure 21). The 0.6m section is further divided into layers of 0.3m each, with one on the ground side designated as the lower layer and the other as the upper layer. The size of the radio window is a square of 0.1m on each side, and the radio window is repeatedly placed around the perimeter of the house at the "centre of the layer height and 0.5m apart horizontally." The positions of the radio window on the upper and lower layers are staggered, with a horizontal shift of 0.25m between them.

[0082] In a simulation assuming macrocell communications, 700MHz / 3.7GHz radio waves are emitted from a transmission point 30m high and 100m away from the house.In a simulation assuming small cell communications, 3.7GHz / 28GHz radio waves are emitted from a transmission point 10m high and 30m away from the house.

[0083] Simulation results are shown in Figs. 22 to 25. Fig. 22 shows simulation results when 700 MHz radio waves are used, assuming communication in a macrocell. Fig. 23 shows simulation results when 3.7 GHz radio waves are used, assuming communication in a macrocell. Fig. 24 shows simulation results when 3.7 GHz radio waves are used, assuming communication in a small cell. Fig. 25 shows simulation results when 28 GHz radio waves are used, assuming communication in a small cell.

[0084] In all simulation results, the graph on the right side indicates higher radio wave transparency. In all simulation results, the use of radio wave windows improves radio wave transparency compared to the case without radio wave windows. In particular, in this simulation, the improvement effect of radio wave window h3 is large.

[0085] The following supplementary notes are further disclosed regarding the above embodiment.

[0086] <Additional Notes> (Additional note 1) A building component used as part of a building, A plurality of radio wave transmitting parts are provided, Each of the plurality of radio wave transparent portions has thermal insulation properties and radio wave transparency properties. Building materials. (Additional note 2) Each of the radio wave transmitting parts has aerogel, glass wool, polyethylene foam, or styrofoam as a material having heat insulation and radio wave transmitting properties. A building material as described in appended paragraph 1. (Additional note 3) The building member is used as an exterior wall, an interior wall, a roof, a floor, a window, or a door in the building. A building material as described in appended paragraph 1 or 2. (Additional note 4) the building component is a panel, and each of the radio wave transmitting portions is embedded in a hole formed in the panel, Each of the radio wave transmitting sections has a structure in which a material having heat insulating properties and radio wave transmitting properties is sandwiched between two plates. A building material according to any one of appendix 1 to 3. (Additional note 5) The architectural component is a glass window, and each of the radio wave transmitting portions has a structure in which a transparent material having heat insulating properties and radio wave transmitting properties is embedded in a hole formed by cutting a metal film on the surface of the glass of the glass window. A building material according to any one of appendix 1 to 4. (Additional note 6) A building constructed using the building materials described in any one of appendix 1 to 5.

[0087] Although the present embodiment has been described above, the present invention is not limited to such a specific embodiment, and various modifications and variations are possible within the scope of the gist of the present invention described in the claims. [Explanation of symbols]

[0088] 1 Access Point 2 Mobile terminals 10 Radio window (radio wave permeable part) 11, 12 Plate material 13. Insulation materials 31~37 Glass 40 Roof 50, 85 Doors 60, 90 Exterior wall 70 Inner wall 80 Floor slab 100 Panels 51, 110 Glass windows 200 Housing 300, 400, 500 base station equipment 600 Office Building

Claims

1. A building component used as part of a building, A plurality of radio wave transmitting sections are provided, Each of the plurality of radio wave transparent portions has thermal insulation properties and radio wave transparency properties. Building materials.

2. Each of the radio wave transmitting parts has aerogel, glass wool, polyethylene foam, or styrofoam as a material having heat insulation and radio wave transmitting properties. The building component according to claim 1 .

3. The building member is used as an exterior wall, an interior wall, a roof, a floor, a window, or a door in the building. The building component according to claim 1 .

4. the building component is a panel, and each of the radio wave transmitting portions is embedded in a hole formed in the panel, Each of the radio wave transmitting sections has a structure in which a material having heat insulating properties and radio wave transmitting properties is sandwiched between two plates. The building component according to claim 1 .

5. The architectural component is a glass window, and each of the radio wave transmitting portions has a structure in which a transparent material having heat insulating properties and radio wave transmitting properties is embedded in a hole formed by cutting a metal film on the surface of the glass of the glass window. The building component according to claim 1 .

6. A building constructed using the construction material according to claim 1.

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