Multi-layer glass assembly for enhancing wireless signals

Abstract

The invention provides a multi-layer glass assembly for enhancing wireless signals, which can be used in the technical field of wireless communication. The glass at least comprises a first glass layer, a second glass layer and a third glass layer, wherein at least a first transparent conductive pattern group is arranged in a gap between the first glass layer and the second glass layer, and at least a second transparent conductive pattern group is arranged in a gap between the second glass layer and the third glass layer; the first transparent conductive pattern group and the second transparent conductive pattern group are determined according to the frequency of a target wireless signal which is about to penetrate through the multi-layer glass assembly. Based on the multi-layer glass assembly, the first transparent conductive pattern group arranged between the first glass layer and the second glass layer and the second transparent conductive pattern group arranged between the second glass layer and the third glass layer are combined and utilized, so that the reflectivity when a target wireless signal passes through the multi-layer glass assembly can be effectively reduced; and the transmittance of a target wireless signal when the target wireless signal passes through the multi-layer glass assembly is improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and more particularly to a multi-layer glass assembly for enhancing wireless signals. Background Art

[0002] As people's requirements for building performance continue to increase, for example, buildings are required to have good lighting and beauty, as well as good sound insulation and heat insulation. In order to meet the above requirements, many construction parties have begun to use multi-layer glass structures containing multiple glass layers as building exterior walls.

[0003] However, commonly used wireless communication signals (e.g., 5G signals) have relatively short wavelengths, which results in relatively low transmittance when passing through obstacles. Especially when passing through thick multi-layer glass structures, the transmittance of wireless communication signals will become relatively lower, and the signal attenuation will be relatively more serious, which will result in the communication devices of users inside the building often only being able to receive relatively weak and poor quality wireless communication signals, and sometimes even unable to normally receive wireless communication signals from outside the building, affecting the normal communication of users.

[0004] To address the above problems, no effective solution has been proposed yet. Summary of the invention

[0005] The present specification provides a multi-layer glass assembly for enhancing wireless signals, which can effectively reduce the reflectivity of the target wireless signal when it passes through the multi-layer glass assembly while achieving better light transmittance, sound insulation, heat insulation and other properties, and improve the transmittance of the target wireless signal when it passes through the multi-layer glass assembly, thereby achieving signal enhancement when the target wireless signal is transmitted through the multi-layer glass assembly.

[0006] This specification provides a multi-layer glass assembly for enhancing wireless signals, comprising at least: a first glass layer, a second glass layer, and a third glass layer;

[0007] Wherein, at least a first transparent conductive pattern group is arranged in the gap between the first glass layer and the second glass layer, and at least a second transparent conductive pattern group is arranged in the gap between the second glass layer and the third glass layer; the first transparent conductive pattern group and the second transparent conductive pattern group are determined according to the frequency of the target wireless signal to be penetrated through the multi-layer glass assembly;

[0008] The first transparent conductive pattern group and the second transparent conductive pattern group are used to reduce the reflectivity of the target wireless signal when passing through the multi-layer glass component, and to increase the transmittance of the target wireless signal when passing through the multi-layer glass component.

[0009] In one embodiment, the first transparent conductive pattern group includes a plurality of periodically arranged transparent conductive unit patterns;

[0010] The transparent conductive unit pattern is a unit pattern with a size parameter smaller than the wavelength of the target wireless signal and with central symmetry.

[0011] In one embodiment, the pattern shape of the transparent conductive unit pattern includes at least one of the following: a circular ring, a square ring, a triangular ring, a regular hexagonal ring, and an elliptical ring.

[0012] In one embodiment, the first transparent conductive pattern group includes a plurality of transparent conductive pattern subgroups;

[0013] Different transparent conductive pattern subgroups contain different types of transparent conductive unit patterns; and the plurality of transparent conductive pattern subgroups are matched with wireless signals of multiple frequency bands in the target wireless signal respectively.

[0014] In one embodiment, at least a first transparent conductive pattern group is disposed in the gap between the first glass layer and the second glass layer, including:

[0015] A first transparent conductive pattern group based on a transparent conductive material is etched on a surface of the first glass layer close to the second glass layer;

[0016] or,

[0017] A first transparent flexible dielectric film is pasted on the surface of the first glass layer close to the second glass layer; wherein the first transparent flexible dielectric film is printed with a first transparent conductive pattern group based on a transparent conductive material.

[0018] In one embodiment, a third transparent conductive pattern group is further disposed between the first glass layer and the second glass layer on a side close to the second glass layer;

[0019] and / or,

[0020] A fourth transparent conductive pattern group is also arranged on the outer side of the surface of the first glass layer away from the second glass layer.

[0021] In one embodiment, the first transparent conductive pattern group includes a plurality of first-type transparent conductive unit patterns arranged based on a first arrangement rule, and the second transparent conductive pattern group includes a plurality of second-type transparent conductive unit patterns arranged based on a second arrangement rule;

[0022] Correspondingly, the first transparent conductive pattern group matches the wireless signal of the first frequency band in the target wireless signal; the second transparent conductive pattern group matches the wireless signal of the second frequency band in the target wireless signal.

[0023] In one embodiment, the gap between the first glass layer and the second glass layer is an air gap.

[0024] In one embodiment, the gap between the first glass layer and the second glass layer is a transparent and soundproof dielectric gap.

[0025] In one embodiment, a fourth glass layer is further included; wherein at least a fifth transparent conductive pattern group is disposed between the third glass layer and the fourth glass layer.

[0026] The present specification also provides another multi-layer glass assembly for enhancing wireless signals, comprising at least: multiple glass layers, wherein a transparent conductive pattern group is arranged on at least one surface of at least one glass layer among the multiple glass layers; wherein the transparent conductive pattern group is determined according to the frequency of the target wireless signal to be penetrated by the multi-layer glass assembly; the transparent conductive pattern group is used to reduce the reflectivity of the target wireless signal when passing through the multi-layer glass assembly, and to improve the transmittance of the target wireless signal when passing through the multi-layer glass assembly.

[0027] A multi-layer glass assembly for enhancing wireless signals provided in this specification at least comprises: a first glass layer, a second glass layer, and a third glass layer; wherein at least a first transparent conductive pattern group is arranged in the gap between the first glass layer and the second glass layer, and at least a second transparent conductive pattern group is arranged in the gap between the second glass layer and the third glass layer; the first transparent conductive pattern group and the second transparent conductive pattern group are determined according to the frequency of the target wireless signal to be penetrated through the multi-layer glass assembly. Based on the above multi-layer glass assembly, by combining and utilizing the first transparent conductive pattern group arranged between the first glass layer and the second glass layer and the second transparent conductive pattern group arranged between the second glass layer and the third glass layer, the reflectivity of the target wireless signal when passing through the multi-layer glass assembly can be effectively reduced, the transmittance of the target wireless signal when passing through the multi-layer glass assembly can be improved, and the signal enhancement of the target wireless signal when passing through the multi-layer glass assembly can be achieved, so that the communication device located on one side of the multi-layer glass assembly can better receive the wireless signal transmitted from the other side of the multi-layer glass assembly; at the same time, the multi-layer glass assembly can also obtain better light transmittance, sound insulation, heat insulation and other properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of this specification, the drawings required for use in the embodiments will be briefly introduced below. The drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the structure of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of the present specification;

[0030] Figure 2It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0031] Figure 3 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0032] Figure 4 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0033] Figure 5 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0034] Figure 6 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0035] Figure 7 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0036] Figure 8 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0037] Fig. 9 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0038] Fig.10 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0039] Fig.11 It is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example;

[0040] Fig.12 This is a schematic diagram of an embodiment of a multi-layer glass assembly for enhancing wireless signals provided by an embodiment of this specification, in a scenario example. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0042] It should be noted that in the embodiments of this specification, certain software, components, models and other existing solutions in the industry may be mentioned, and they should be regarded as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0043] Considering that there is often a certain air gap between adjacent glass layers in the existing multi-layer glass structure, when the wireless communication signal passes through the multi-layer glass structure, due to the short wavelength of the wireless communication signal itself and the impedance mismatch between glass and air, the wireless communication signal transmittance is low, making it difficult for the communication device on the other side of the multi-layer glass structure to normally receive a high-quality wireless communication signal. Especially when passing through a thick multi-layer glass structure, the above problem is more serious.

[0044] In view of the root cause of the above problems, this specification considers that the gap space between adjacent glass layers in the multi-layer glass structure can be effectively utilized, and a matching transparent conductive pattern group is set in the gap according to the frequency of the wireless communication signal to be penetrated and the thickness of the glass layer. As a result, the gap provided with the transparent conductive pattern group can have an overall equivalent dielectric constant and magnetic permeability that are the same as or similar to the glass layer at the frequency of the wireless communication signal. In this way, the transparent conductive pattern group can be effectively utilized to reduce the reflectivity of the wireless communication signal passing through the multi-layer glass structure, improve the corresponding transmittance, and achieve signal enhancement of the wireless communication signal without changing the existing structure of the multi-layer glass structure too much, while ensuring the lighting, aesthetics, heat insulation, and sound insulation of the multi-layer glass structure.

[0045] Furthermore, this specification also considers using a periodic arrangement of centrally symmetrical transparent conductive unit patterns with size parameters smaller than the wavelength of the target wireless signal to construct the above-mentioned transparent conductive pattern group, so that wireless communication signals with different incident angles and different polarization modes can be more effectively enhanced.

[0046] In addition, for the multi-layer glass structure including three glass layers, the present specification also specifically considers setting the gap between the first glass layer and the second glass layer, and the gap between the second glass layer and the third glass layer to the first transparent conductive pattern group and the second transparent conductive pattern group that match the wireless communication signal, respectively, so that by combining the two transparent conductive pattern groups, a relatively better signal enhancement effect can be obtained for the wireless communication signal.

[0047] Based on the above considerations, see Figure 1 As shown, the embodiment of this specification provides a multi-layer glass assembly for enhancing wireless signals, which may at least include: a first glass layer, a second glass layer, and a third glass layer;

[0048] Wherein, at least a first transparent conductive pattern group is arranged in the gap between the first glass layer and the second glass layer, and at least a second transparent conductive pattern group is arranged in the gap between the second glass layer and the third glass layer; the first transparent conductive pattern group and the second transparent conductive pattern group are determined according to the frequency of the target wireless signal to be penetrated through the multi-layer glass assembly;

[0049] The first transparent conductive pattern group and the second transparent conductive pattern group are used to reduce the reflectivity of the target wireless signal when passing through the multi-layer glass component, and to increase the transmittance of the target wireless signal when passing through the multi-layer glass component.

[0050] The first glass layer, the second glass layer and the third glass layer may be transparent glass layers with a certain thickness. The thicknesses of the first glass layer, the second glass layer and the third glass layer may be the same or different.

[0051] The first transparent conductive pattern group and the second transparent conductive pattern group may be the same or different.

[0052] Specifically, taking the first transparent conductive pattern group as an example, refer to Figure 2 As shown, the first transparent conductive pattern group may be a pattern formed by periodically arranging a plurality of transparent conductive unit patterns according to a certain arrangement rule.

[0053] Specifically, each transparent conductive unit pattern can be a pattern made of corresponding transparent conductive material with a narrower edge width, so that the light shielding and influence of the transparent conductive pattern group arranged between the glass layers can be effectively reduced, so that the multi-layer glass assembly as a whole still has good light transmittance.

[0054] Specifically, the first transparent conductive pattern group may be designed according to the frequency of the target wireless signal to be penetrated through the multi-layer glass assembly. The thickness of the first transparent conductive pattern group is relatively small.

[0055] Specifically, the transparent conductive unit pattern in the first transparent conductive pattern group is a sub-wavelength unit pattern whose size parameter is smaller than the wavelength of the target wireless signal. Accordingly, the plurality of transparent conductive unit patterns in the first transparent conductive pattern group can form a transparent metasurface adapted to the target wireless signal by periodically arranging.

[0056] In a specific implementation, the size parameters of the transparent conductive unit pattern can be set to be greater than or equal to 0.1 times the working wavelength of the target wireless signal, and less than or equal to 0.4 times the working wavelength of the target wireless signal. Based on the above size parameters, the constructed transparent metasurface can have a good signal enhancement effect on the target wireless signal.

[0057] Specifically, the transparent conductive unit pattern may be a central symmetric unit pattern. In this way, the first transparent conductive pattern group can have a good signal enhancement effect on target wireless signals with different incident angles and different polarization modes (including vertical polarization mode TE and horizontal polarization mode TM).

[0058] Among them, the above-mentioned metasurface can be specifically understood as a layered structure with a thickness less than the wavelength. Based on this structure, the polarization, amplitude, phase, polarization mode, propagation mode and other characteristics of the electromagnetic wave of the relevant wireless signal can be effectively controlled.

[0059] The second transparent conductive pattern group and the first transparent conductive pattern group are also obtained by periodically arranging a plurality of transparent conductive unit patterns according to a certain arrangement rule.

[0060] In this embodiment, by arranging the first transparent conductive pattern group between the first glass layer and the second glass layer, and arranging the second transparent conductive pattern group between the second glass layer and the third glass layer, on the one hand, it is possible to fully utilize the gaps originally existing between the glass layers in the multi-layer glass assembly to arrange the transparent conductive pattern group, thereby avoiding an additional increase in the overall volume of the multi-layer glass assembly; on the other hand, the glass layer can also be used as a protective layer at the same time, thereby avoiding the transparent conductive pattern group from being worn and corroded due to direct contact with the external environment, thereby extending the service life of the transparent conductive pattern group; on the other hand, when the target wireless signal just passes through a glass layer, the target wireless signal can be enhanced in time through a transparent conductive pattern group, thereby avoiding the target wireless signal from being too weak to be separated from the noise signal due to multiple continuous attenuations after the target wireless signal passes through multiple glass layers in succession, thereby preventing the target wireless signal from being unable to be normally received and used.

[0061] At the same time, since the corresponding transparent conductive pattern group is arranged in the original gap between the glass layers, and the transparent conductive pattern group itself is relatively thin, the original structure of the multi-layer glass assembly is not modified, and therefore, the original heat insulation, sound insulation and other properties of the multi-layer glass assembly will not be affected; and since the transparent conductive unit pattern in the transparent conductive pattern group is supported by transparent conductive materials, the original light transmittance of the multi-layer glass assembly will not be affected, so that the multi-layer glass assembly still maintains good light transmittance, heat insulation, sound insulation and other properties.

[0062] For specific implementation, please refer to Figure 3 As shown, the target wireless signal emitted by the base station located on one side of the multi-layer glass component (for example, the outside of a building using the multi-layer glass component for enhancing wireless signals as the exterior wall of the building) first passes through the first glass layer, and then passes through the gap between the first glass layer and the second glass layer (which can be recorded as the first gap) to enter the second glass layer. Due to the presence of the first transparent conductive pattern group in the first gap, the dielectric constant and magnetic permeability of the first gap as a whole at the operating frequency of the target wireless signal are equal to those of the first glass layer and the second glass layer, or the difference value is less than or equal to the preset difference threshold. In this way, the reflectivity of the target wireless signal when it is emitted from the first glass layer and when it is emitted into the second glass layer can be effectively reduced, while the corresponding transmittance is increased, thereby achieving the first enhancement of the target wireless signal and reducing the attenuation of the target wireless signal.

[0063] Then, after passing through the second glass layer, the target wireless signal will pass through the gap between the second glass layer and the third glass layer (which can be recorded as the second gap) and enter the third glass layer. Due to the presence of the second transparent conductive pattern group, the dielectric constant and magnetic permeability of the second gap as a whole at the operating frequency of the target wireless signal are equal to those of the second glass layer and the third glass layer, or the difference value is less than or equal to the preset difference threshold. In this way, the reflectivity of the target wireless signal when it exits the second glass layer and enters the third glass layer can be effectively reduced, while the corresponding transmittance is increased, thereby achieving a second enhancement of the target wireless signal and further reducing the attenuation of the target wireless signal.

[0064] Thus, the communication device located on the other side of the multi-layer glass assembly (for example, inside a building using the multi-layer glass assembly with enhanced wireless signals as the building exterior wall) can still normally receive the target wireless signal of higher quality from outside the multi-layer glass assembly, without affecting the normal communication of the user inside the multi-layer glass assembly. The communication device may specifically include at least one of the following: a mobile phone, a tablet computer, a smart watch, etc.

[0065] In some embodiments, see Figure 4As shown, a third transparent conductive pattern group may be further arranged on a surface of the third glass layer away from the second glass layer.

[0066] In this way, after the target wireless signal is emitted from the third glass layer, the target wireless signal can be enhanced for the third time by the third transparent conductive pattern group to reduce the attenuation of the target wireless signal when passing through the third glass layer, so that the communication equipment located within the multi-layer glass assembly can receive the target wireless signal with relatively better quality, further improving the user's communication experience.

[0067] Similarly, a transparent conductive pattern group may be provided on the surface of the first glass layer away from the second glass layer to reduce the attenuation of the target wireless signal when it passes through the first glass layer from the air, so as to better enhance the signal of the target wireless signal.

[0068] In some embodiments, regarding the transparent conductive pattern group, the first transparent conductive pattern group is mainly used as an example for specific description. Regarding other transparent conductive pattern groups, for example, the second transparent conductive pattern group, the third transparent conductive pattern group, etc., reference can be made to the relevant embodiments regarding the first transparent conductive pattern group. This specification will not be repeated.

[0069] In some embodiments, the first transparent conductive pattern group may include a plurality of periodically arranged transparent conductive unit patterns;

[0070] The transparent conductive unit pattern is a unit pattern with a size parameter smaller than the wavelength of the target wireless signal and with central symmetry.

[0071] In some embodiments, the pattern shape of the transparent conductive unit pattern may specifically include at least one of the following: a circular ring, a square ring, a triangular ring, a regular hexagonal ring, an elliptical ring, and the like.

[0072] The above pattern shape satisfies the central symmetry on the one hand, and matches most commonly used wireless communication signals on the other hand, and has good applicability.

[0073] In specific implementation, the shape that matches the frequency of the target wireless signal can be determined as the shape of the transparent conductive unit pattern. The size parameters of the transparent conductive unit pattern can then be accurately determined based on the wavelength (or frequency) of the target wireless signal, the thickness of the glass layer, the gap thickness, the incident angle of the target wireless signal, the polarization mode, and other information.

[0074] Specifically, according to the wavelength of the target wireless signal, it can be determined that the maximum size of the transparent conductive unit pattern is greater than or equal to 0.1 times the operating wavelength of the target wireless signal and less than or equal to 0.4 times the operating wavelength of the target wireless signal.

[0075] Specifically, according to the wavelength of the target wireless signal, it can be determined that the annular line width of the transparent conductive unit pattern is greater than 60 um, so that the transparent conductive pattern group can achieve a better effect when acting on the target wireless signal.

[0076] In a specific implementation, a first functional formula can be constructed according to the shape of the transparent conductive unit pattern, in which the dielectric constant of the glass layer is equal to the equivalent dielectric constant of the entire gap including the transparent conductive pattern group, and a second functional formula can be constructed in which the magnetic permeability of the glass layer is equal to the equivalent magnetic permeability of the entire gap including the transparent conductive pattern group; and then, combined with the above-mentioned constraints such as the maximum size and loop line width of the transparent conductive unit pattern, an optimization solution is performed to determine the size parameters of the transparent conductive unit pattern that meet the requirements.

[0077] For example, see Figure 5 As shown, transparent conductive pattern groups with the same shape and structure can be respectively provided on the surface of the second glass layer away from the third glass layer (upper surface) and the surface of the third glass layer away from the second glass layer (lower surface), which can be recorded as transparent conductive pattern group 1 and transparent conductive pattern group 2.

[0078] In specific implementation, the thickness of the glass layer (hg), the thickness of the gap between the glass layers (dg), the dielectric constant of the gap, and related information such as the frequency of the target wireless signal can be combined to determine the side length p and the ring line width w of the transparent conductive unit pattern through the solution according to the above-mentioned solution method, thereby determining the specific size parameters of the transparent conductive unit pattern.

[0079] Specifically, the side length p of the transparent conductive unit pattern may preferably be 0.15 times the operating wavelength of the target signal, and the loop line width w may preferably be 0.0625 mm.

[0080] In addition, the number of transparent conductive unit patterns in the first transparent conductive pattern group may be determined according to the frequency of the target wireless signal. For example, it may be determined that the number of transparent conductive unit patterns matching the target wireless signal is 10×10.

[0081] In some embodiments, the transparent conductive unit pattern may be made of a transparent conductive material.

[0082] The transparent conductive material includes at least one of the following: transparent oxides such as ITO and FTO, and / or AgHT, graphene, carbon nanotubes, silver nanowires, metal (silver, copper, etc.) grids, and the like.

[0083] Among them, the above-mentioned ITO, FTO and AgHT refer to indium tin oxide, fluorine-doped tin oxide and silver tin oxide respectively.

[0084] In some embodiments, see Figure 6 As shown, in a specific implementation, a first transparent conductive film coating and a second transparent conductive film coating can be respectively adhered to the two surfaces of the first glass layer; a third transparent conductive film coating and a fourth transparent conductive film coating can be respectively adhered to the two surfaces of the second glass layer; and a fifth transparent conductive film coating and a sixth transparent conductive film coating can be respectively adhered to the two surfaces of the third glass layer.

[0085] In a specific implementation, the first transparent conductive pattern group can be disposed on the second transparent conductive film coating or the third transparent conductive film coating, and the second transparent conductive pattern group can be disposed on the fourth transparent conductive film coating or the fifth transparent conductive film coating.

[0086] In specific implementation, for more complex wireless communication scenarios and in combination with more diverse user needs, other transparent conductive pattern groups other than the first transparent conductive pattern group and the second transparent conductive pattern group may be provided on other transparent conductive film coatings. This specification does not limit this.

[0087] In some embodiments, the first transparent conductive pattern group may specifically include a plurality of transparent conductive pattern subgroups;

[0088] Different transparent conductive pattern subgroups contain different types of transparent conductive unit patterns; and the plurality of transparent conductive pattern subgroups are matched with wireless signals of multiple frequency bands in the target wireless signal respectively.

[0089] This is because for more complex wireless communication scenarios, the target wireless signal often contains wireless signals of multiple different frequency bands at the same time. By arranging wireless signals corresponding to multiple frequency bands in the first transparent conductive pattern group, the first transparent conductive pattern group can more comprehensively cover multiple different frequency bands in the target wireless signal, effectively improve the transmittance of wireless signals of different frequency bands in the target wireless signal, and can play a better signal enhancement effect on wireless signals of different frequency bands of the target wireless signal.

[0090] In some embodiments, during implementation, different transparent conductive pattern sub-groups may be respectively arranged in different regions of the first transparent conductive pattern group.

[0091] For example, a first transparent conductive pattern subgroup matching a first frequency band signal of a target wireless signal may be provided in the upper region; and a second transparent conductive pattern subgroup matching a second frequency band signal of a target wireless signal may be provided in the lower region.

[0092] In some embodiments, the noise signal (e.g., car horns on the road, communication signals of walkie-talkies, etc.) that passes through the multi-layer glass assembly along with the target wireless signal in the external environment can be further determined, and the frequency of the noise signal can be determined. Then, the corresponding transparent conductive pattern interference group can be designed and manufactured according to the frequency of the noise signal, and the transparent conductive pattern interference group can be set in the gap between the first glass layer and the second glass layer and / or the gap between the second glass layer and the third glass layer.

[0093] Among them, the above-mentioned transparent conductive pattern interference group is designed not to affect the target wireless signal, but to reduce the transmittance of the noise signal.

[0094] In this way, by introducing a transparent conductive pattern interference group into the multi-layer glass assembly, noise signals that may interfere with the target wireless signal or interfere with the user can be weakened in a targeted manner without affecting the normal reception of the target wireless signal.

[0095] In some embodiments, at least a first transparent conductive pattern group is disposed in the gap between the first glass layer and the second glass layer. When specifically implemented, the following may be included:

[0096] A first transparent conductive pattern group based on a transparent conductive material is etched on a surface of the first glass layer close to the second glass layer;

[0097] or,

[0098] A first transparent flexible dielectric film is pasted on the surface of the first glass layer close to the second glass layer; wherein the first transparent flexible dielectric film is printed with a first transparent conductive pattern group based on a transparent conductive material. For example, Figure 6 In the method, a first transparent conductive pattern group is arranged in the second transparent conductive film coating layer.

[0099] Specifically, the transparent flexible dielectric film is made of at least one of the following materials: PET, PDMS, PI and the like.

[0100] The above-mentioned PET, PDMS and PI refer to polyethylene terephthalate, polydimethylsiloxane and polyimide respectively.

[0101] In this embodiment, by using a transparent flexible dielectric film as a transparent conductive film coating to print the first transparent conductive pattern group, the first transparent conductive pattern pasted on the surface of the first glass layer close to the second glass layer can be more closely attached to the surface of the first glass layer, thereby obtaining a relatively better signal enhancement effect.

[0102] In some embodiments, a third transparent conductive pattern group may be further disposed on a side between the first glass layer and the second glass layer close to the second glass layer;

[0103] and / or,

[0104] A fourth transparent conductive pattern group may also be disposed on the outer side of the surface of the first glass layer away from the second glass layer.

[0105] In addition, other transparent conductive pattern groups may be arranged on the outer side of the surface of the third glass layer away from the second glass layer.

[0106] Therefore, relatively more transparent conductive patterns can be used in combination to further improve the transmittance of the target wireless signal and obtain a better signal enhancement effect for the target wireless signal.

[0107] In some embodiments, the above-mentioned multi-layer glass assembly may further include a fourth glass layer; wherein at least a fifth transparent conductive pattern group is disposed between the third glass layer and the fourth glass layer.

[0108] According to specific application scenarios, the above-mentioned multi-layer glass assembly may also include more glass layers and more transparent conductive pattern groups to meet relatively more complex and diverse communication needs.

[0109] In some embodiments, the first transparent conductive pattern group includes a plurality of first-type transparent conductive unit patterns arranged based on a first arrangement rule, and the second transparent conductive pattern group includes a plurality of second-type transparent conductive unit patterns arranged based on a second arrangement rule;

[0110] Correspondingly, the first transparent conductive pattern group matches the wireless signal of the first frequency band in the target wireless signal; the second transparent conductive pattern group matches the wireless signal of the second frequency band in the target wireless signal.

[0111] Based on the above embodiments, by combining different conductive pattern groups for different frequency bands in the target wireless signal, signal enhancement of wireless signals in different frequency bands in the target wireless signal can be achieved more comprehensively and effectively, thereby obtaining a relatively good signal enhancement effect.

[0112] In some embodiments, the above-mentioned multi-layer glass assembly can be specifically applied to the exterior wall of a building; accordingly, based on the above-mentioned multi-layer glass assembly, while ensuring the lighting, heat insulation, sound insulation, aesthetics and other properties of the building, it can ensure that the communication equipment in the building can perform normal wireless communication.

[0113] The above-mentioned multi-layer glass assembly can also be specifically applied to glass windows of transportation vehicles, wherein the above-mentioned transportation vehicles can specifically include at least one of the following: cars, trains, airplanes, cruise ships, etc.; accordingly, based on the above-mentioned multi-layer glass assembly, users can still interact and communicate normally with the outside world in the transportation vehicle.

[0114] Of course, in addition to the application scenarios listed above, the above-mentioned multi-layer glass assembly can also be applied to other types of wireless communication scenarios to obtain a better wireless signal enhancement effect. This specification does not limit this.

[0115] In some embodiments, the gap between the first glass layer and the second glass layer may be an air gap. Accordingly, the air gap between the first glass layer and the second glass layer may be used to reduce costs and achieve certain sound insulation and heat insulation effects without affecting lighting and wireless signal transmittance.

[0116] The gap between the second glass layer and the third glass layer, and the gap between the first glass layer and the second glass layer may be the same or different.

[0117] In some embodiments, the gap between the first glass layer and the second glass layer may be a transparent and soundproof medium gap, so that the multi-layer glass assembly can have relatively better sound insulation while having good lighting, wireless signal transmittance, and heat insulation.

[0118] In some embodiments, the gap between the first glass layer and the second glass layer may be a transparent and heat-insulating medium gap, so that the multi-layer glass assembly can have relatively better heat insulation while having good lighting, wireless signal transmittance, and sound insulation.

[0119] In some embodiments, the gap between the first glass layer and the second glass layer can be a transparent and soundproof medium gap; the gap between the second glass layer and the third glass layer can be a transparent and heat-insulating medium gap. In this way, the multi-layer glass assembly can have relatively better heat insulation and sound insulation while having good lighting and wireless signal transmittance, meeting the complex and diverse needs of users.

[0120] As can be seen from the above, a multi-layer glass assembly for enhancing wireless signals provided in the embodiment of the present specification at least comprises: a first glass layer, a second glass layer, and a third glass layer; wherein at least a first transparent conductive pattern group is arranged in the gap between the first glass layer and the second glass layer, and at least a second transparent conductive pattern group is arranged in the gap between the second glass layer and the third glass layer; the first transparent conductive pattern group and the second transparent conductive pattern group are determined according to the frequency of the target wireless signal to be penetrated through the multi-layer glass assembly. Based on the above multi-layer glass assembly, by combining and utilizing the first transparent conductive pattern group arranged between the first glass layer and the second glass layer and the second transparent conductive pattern group arranged between the second glass layer and the third glass layer, the reflectivity of the target wireless signal when passing through the multi-layer glass assembly can be effectively reduced, the transmittance of the target wireless signal when passing through the multi-layer glass assembly can be improved, and the signal enhancement of the target wireless signal when passing through the multi-layer glass assembly can be achieved, so that the communication equipment on one side of the multi-layer glass assembly can better receive the wireless signal from the other side of the multi-layer glass assembly; at the same time, better light transmittance, sound insulation, heat insulation, etc. can also be obtained.

[0121] The embodiments of the present specification also provide a multi-layer glass assembly for enhancing wireless signals, comprising at least: a plurality of glass layers, wherein a transparent conductive pattern group is arranged on at least one surface of at least one glass layer among the plurality of glass layers; wherein the transparent conductive pattern group is determined according to the frequency of a target wireless signal to be penetrated through the multi-layer glass assembly; the transparent conductive pattern group is used to reduce the reflectivity of the target wireless signal when passing through the multi-layer glass assembly, and to improve the transmittance of the target wireless signal when passing through the multi-layer glass assembly.

[0122] The number of glass layers included in the multi-layer glass assembly is greater than or equal to 2. The transparent conductive pattern group includes a plurality of periodically arranged transparent conductive unit patterns. The transparent conductive unit pattern is a unit pattern with a size parameter smaller than the wavelength of the target wireless signal and central symmetry.

[0123] According to specific processing requirements, the above-mentioned multi-layer glass assembly can be provided with a plurality of transparent conductive pattern groups to meet relatively diverse and complex communication application scenarios.

[0124] The multi-layer glass assembly for enhancing wireless signals based on the above structure can be well adapted to specific communication application scenarios. While ensuring the lighting, heat insulation, sound insulation and other properties of the multi-layer glass assembly, the multi-layer glass assembly has good transmittance for the target wireless signal, so as to obtain a better signal enhancement effect for the target wireless signal.

[0125] It should be noted that the units, devices or modules described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. For the convenience of description, the above devices are described separately by functions divided into various modules. Of course, when implementing this specification, the functions of each module can be implemented in the same or more software and / or hardware, or the modules that implement the same function can be implemented by a combination of multiple sub-modules or sub-units. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0126] In a specific scenario example, a multi-layer glass assembly for enhancing wireless signals provided in this specification can be used to design and construct multi-layer glass for enhancing transmission. For details, please refer to the following content.

[0127] In this scenario example, it is considered that the operating frequency can be changed by adjusting the size of the metasurface according to the frequency of enhanced transmission in the scenario, so as to achieve wide-angle, high RF transmittance transmission and maintain the stability of the incident angle and polarization. At the same time, the metasurface designed on the glass is relatively thin, using transparent conductive materials, and can maintain high optical transparency, which does not affect the normal use of ordinary glass and is conducive to the transmission and communication of 5G, 6G and other signals.

[0128] Based on the above design, by making a metasurface with a periodic structure on multi-layer glass, the attenuation of electromagnetic signals by multi-layer glass is reduced without affecting the optical transparency of the multi-layer glass. At the same time, the metasurface only needs to change the size of the periodic structure to work at different target frequencies. The present invention integrates a transparent metasurface into multi-layer glass, which can significantly enhance the penetration of wireless signals with different incident angles and different polarizations into the multi-layer glass. It can be applied to the multi-layer glass window structure of a building to enhance the coverage of outdoor signals to the indoor environment.

[0129] For specific implementation, see Figure 7 As shown, in combination with the above-mentioned design scheme, the multi-layer glass with enhanced transmission may include: double-layer glass (glass 10, glass 11), an air gap between the double-layer glass, and a transparent conductor pattern (e.g., a first transparent conductive pattern group) attached to the glass surface. The pattern is composed of a transparent conductive material, and the pattern (e.g., a transparent conductive unit pattern) is periodically arranged to form a metasurface. The shape and size of the pattern can be specifically designed according to the operating frequency of the wireless communication signal, the glass thickness, and the air gap thickness.

[0130] Among them, multi-layer glass is double-layer glass with air gaps between each layer of glass.

[0131] Specifically, a conductive film 12 having a transparent conductive pattern is attached to the upper surface of the glass 10 , and a conductive film 13 having a transparent conductive pattern is attached to the lower surface of the glass 11 .

[0132] The above transparent conductive pattern and glass can be integrated by direct etching. The transparent conductive material is a transparent conductive film made of metallic silver.

[0133] The transparent conductive pattern is composed of periodically arranged sub-wavelength units to form a transparent metasurface structure. The transparent conductive pattern unit is square and the ring line width is 0.0625 mm.

[0134] Specifically, the unit size of the transparent conductive pattern can be designed according to the operating frequency of the wireless communication signal, the glass thickness and the air gap thickness, and the preferred unit pattern size is 0.15 of the operating wavelength.

[0135] In this scenario example, the double-layer glass is ultra-white glass with a thickness of hg, a relative dielectric constant of 6.05, and a dielectric loss of 0.095. The air gap distance in the double-layer glass is dg, and the conductive film made on its surface is a periodic pattern with a unit period length of p, a trace width of w, and a thickness of 0.035 mm.

[0136] The size of the periodic structure can be flexibly changed according to the thickness, spacing and dielectric constant of the double-layer glass, and the conductive film is not limited to being designed on the upper and lower surfaces of glass 10 and glass 11, and can be attached to one or more surfaces according to needs.

[0137] Specifically, the periodic unit pattern of the conductive film attached to the surface of the double-layer glass can be referred to Figure 5 As shown, the purpose of designing such a square is that this shape has rotational symmetry and geometric symmetry, which can reduce the attenuation of electromagnetic waves with larger incident angles. Similar regular hexagons, circles, etc. also have the same effect. At the same time, the sizes p and w of the periodic structure are designed according to various parameters of the double-layer glass, and can be independently regulated or jointly regulated to meet the air gap between the glass 10 and the glass 11 and the dielectric constant and magnetic permeability of the conductive film 12 and 13 as a whole are equal at the working frequency. At this time, the metasurface can achieve high transmittance of electromagnetic waves.

[0138] Among them, because the film pattern and w are smaller than p, the overall optical transparency of the metal film is high, and it has no significant impact on the use of ordinary double-layer glass. At the same time, the material of the metal film can be changed accordingly according to different requirements for transmittance, light transmittance, etc. For example, the use of ITO transparent oxide, which has a poorer conductivity than silver, will reduce the transmittance of the metasurface at the working frequency, but due to its higher transparency, the produced metasurface has better optical transparency. Among them, the parameters of the above-mentioned metasurface can be found in Table 1.

[0139] Table 1

[0140] parameter Value(mm) <![CDATA[h g ]]> 5 <![CDATA[d g ]]> 9 p 9 w 0.0625

[0141] In this scenario example, combined with the above design scheme, CST three-dimensional electromagnetic simulation software was used to simulate and analyze the relevant performance indicators, and the simulation analysis results shown below were obtained.

[0142] See also Figure 8 As shown in the figure, the transmission effect of the electromagnetic wave incident on the metasurface with vertical polarization (TE) in the multi-layer glass design method for enhanced transmission (corresponding to Meta-glass) is significant compared with ordinary double-layer glass (corresponding to Bare-glass). In the frequency range of f = 4.09 GHz to f = 6.66 GHz, its electromagnetic wave transmittance is greater than that of ordinary double-layer glass. Among them, the maximum improvement is at the 5 GHz operating frequency, at which the transmittance is -0.79 dB, which is 5.96 dB higher than that of ordinary glass.

[0143] See also Fig. 9 As shown in FIG. 1 , the transmission effect of the electromagnetic wave of the multilayer glass design method for enhancing transmission at 5 GHz with horizontal polarization (TM) is incident on the metasurface. Figure 8 The same effect is shown for vertically polarized waves.

[0144] See also Fig.10 As shown, the transmission coefficient of the electromagnetic wave of the multi-layer glass design method for enhanced transmission at 5 GHz with vertical polarization (TE) at incident angles Φ=0° and Φ=45° is compared with that of ordinary double-layer glass at different incident angles θ. The designed metasurface enhances the RF transmission under TE polarization in a wide angle range.

[0145] See also Fig.11As shown, the electromagnetic wave of the multi-layer glass design method for enhanced transmission is compared with the transmission coefficient of ordinary double-layer glass at different incident angles θ at 5GHz with horizontal polarization (TM) at incident angles Φ=0° and Φ=45°. The designed metasurface enhances the RF transmission under TM polarization in a wide angle range. However, due to the existence of the Brewster angle of glass, when the incident angle of the electromagnetic wave under TM polarization is near the Brewster angle, ordinary double-layer glass can obtain better transmission, so the transmittance of the metasurface under TM polarization at this part of the incident angle is lower than that of ordinary double-layer glass.

[0146] See also Fig.12 As shown, the method for designing multi-layer glass with enhanced transmission is Fig.10 and Fig.11 If the transmission of TE and TM polarizations is averaged, the average transmission performance of the metasurface at 5 GHz is better than that of ordinary double-layer glass at all incident angles.

[0147] Through the above scenario examples, it is verified that the multi-layer glass component for enhancing wireless signals provided in this specification has a higher transmission coefficient of wireless communication signals, better angle stability, and higher optical transparency. Specifically, the metasurface is used to improve the transmission ability of double-layer glass to electromagnetic waves near 5GHz. Among them, the transmission coefficient of normal incidence under two polarization conditions at 5GHz frequency is higher than 6.5dB compared with ordinary glass. The transmission coefficient is greatly improved in the range of incident angles of 0 to 60°, and the angle stability can be maintained. At the same time, the metal film has little effect on the optical transparency of the double-layer glass itself, which can ensure the light transmittance and aesthetics of the double-layer glass.

[0148] Although the present specification provides method operation steps as described in the embodiments or flow charts, more or less operation steps may be included based on conventional or non-creative means. The order of steps listed in the embodiments is only one way of executing the order of many steps, and does not represent a unique execution order. When the device or client product in practice is executed, it can be executed in sequence or in parallel according to the method shown in the embodiments or the drawings (for example, a parallel processor or a multi-threaded processing environment, or even a distributed data processing environment). The term "include", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, product or device including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such a process, method, product or device. In the absence of more restrictions, it is not excluded that there are other identical or equivalent elements in the process, method, product or device including the elements. The first, second, etc. words are used to represent the name, and do not represent any particular order.

[0149] Those skilled in the art also know that, in addition to implementing the controller in a purely computer-readable program code, the controller can be made to implement the same function in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, such a controller can be considered as a hardware component, and the devices for implementing various functions included therein can also be considered as structures within the hardware component. Or even, the devices for implementing various functions can be considered as both software modules for implementing the method and structures within the hardware component.

[0150] This specification may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, classes, etc. that perform specific tasks or implement specific abstract data types. This specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer-readable storage media including storage devices.

[0151] Through the description of the above embodiments, it can be known that those skilled in the art can clearly understand that the present specification can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present specification can essentially be embodied in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a mobile terminal, a server, or a network device, etc.) to execute the methods described in each embodiment of the present specification or some parts of the embodiments.

[0152] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. This specification can be used in many general or special computer system environments or configurations. For example: personal computers, server computers, handheld devices or portable devices, tablet devices, multi-processor systems, microprocessor-based systems, set-top boxes, programmable electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, etc.

[0153] Although the present specification is described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present specification without departing from the spirit of the present specification, and it is intended that the appended claims include these modifications and changes without departing from the spirit of the present specification.

Claims

1. A multi-layer glass assembly for enhancing wireless signals, characterized in that: At least: A first glass layer, a second glass layer, and a third glass layer; Wherein, at least a first transparent conductive pattern group is arranged in the gap between the first glass layer and the second glass layer, and at least a second transparent conductive pattern group is arranged in the gap between the second glass layer and the third glass layer; the first transparent conductive pattern group and the second transparent conductive pattern group are determined according to the frequency of the target wireless signal to be penetrated through the multi-layer glass assembly; The first transparent conductive pattern group and the second transparent conductive pattern group are used to reduce the reflectivity of the target wireless signal when passing through the multi-layer glass component, and to increase the transmittance of the target wireless signal when passing through the multi-layer glass component.

2. The multi-layer glass assembly for enhancing wireless signals according to claim 1, characterized in that: The first transparent conductive pattern group includes a plurality of periodically arranged transparent conductive unit patterns; The transparent conductive unit pattern is a unit pattern with a size parameter smaller than the wavelength of the target wireless signal and with central symmetry.

3. The multi-layer glass assembly for enhancing wireless signals according to claim 2, characterized in that: The pattern shape of the transparent conductive unit pattern includes at least one of the following: a circular ring, a square ring, a triangular ring, a regular hexagonal ring, and an elliptical ring.

4. The multi-layer glass assembly for enhancing wireless signals according to claim 2, characterized in that: The first transparent conductive pattern group includes a plurality of transparent conductive pattern subgroups; Different transparent conductive pattern subgroups contain different types of transparent conductive unit patterns; and the plurality of transparent conductive pattern subgroups are matched with wireless signals of multiple frequency bands in the target wireless signal respectively.

5. The multi-layer glass assembly for enhancing wireless signals according to claim 2, characterized in that: At least a first transparent conductive pattern group is arranged in the gap between the first glass layer and the second glass layer, including: A first transparent conductive pattern group based on a transparent conductive material is etched on a surface of the first glass layer close to the second glass layer; or, A first transparent flexible dielectric film is pasted on the surface of the first glass layer close to the second glass layer; wherein the first transparent flexible dielectric film is printed with a first transparent conductive pattern group based on a transparent conductive material.

6. The multi-layer glass assembly for enhancing wireless signals according to claim 5, characterized in that: A third transparent conductive pattern group is also arranged between the first glass layer and the second glass layer on a side close to the second glass layer; and / or, A fourth transparent conductive pattern group is also arranged on the outer side of the surface of the first glass layer away from the second glass layer.

7. The multi-layer glass assembly for enhancing wireless signals according to claim 2, characterized in that: The first transparent conductive pattern group includes a plurality of first-type transparent conductive unit patterns arranged based on a first arrangement rule, and the second transparent conductive pattern group includes a plurality of second-type transparent conductive unit patterns arranged based on a second arrangement rule; Correspondingly, the first transparent conductive pattern group matches the wireless signal of the first frequency band in the target wireless signal; the second transparent conductive pattern group matches the wireless signal of the second frequency band in the target wireless signal.

8. The multi-layer glass assembly for enhancing wireless signals according to claim 1, characterized in that: The gap between the first glass layer and the second glass layer is a transparent and soundproof dielectric gap.

9. The multi-layer glass assembly for enhancing wireless signals according to claim 1, characterized in that: It also includes a fourth glass layer; wherein at least a fifth transparent conductive pattern group is arranged between the third glass layer and the fourth glass layer.

10. A multi-layer glass assembly for enhancing wireless signals, characterized in that: At least: Multiple glass layers, A transparent conductive pattern group is provided at at least one surface of at least one glass layer among the plurality of glass layers; Among them, the transparent conductive pattern group is determined according to the frequency of the target wireless signal to be penetrated by the multi-layer glass component; the transparent conductive pattern group is used to reduce the reflectivity of the target wireless signal when passing through the multi-layer glass component and improve the transmittance of the target wireless signal when passing through the multi-layer glass component.

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