5G signal transmission power generation glass

Abstract

The invention discloses power generation glass capable of transmitting 5G signals, and relates to the technical field of photovoltaics. The 5G signal transmission power generation glass comprises a glass substrate and a power generation thin film layer arranged on one side face of the glass substrate, the power generation thin film layer is provided with signal anti-reflection structure units which are distributed in a two-dimensional periodic array mode and penetrate through the power generation thin film layer, and the signal anti-reflection structure units are centrosymmetric Y-shaped grooves. The signal anti-reflection structure unit is arranged on the glass substrate, so that high transmittance of electromagnetic waves of a target frequency band can be realized on the premise of ensuring the power generation efficiency of the power generation glass. In addition, the centrosymmetric Y-shaped groove has the advantages of being insensitive to angles and polarization and the like, and has high practical value in actual life and production application scenes.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a power-generating glass that is transparent to 5G signals. Background Art

[0002] Power-generating glass is a thin film of optoelectronic functional materials, primarily cadmium telluride, deposited on a glass substrate. This film typically includes the following material layers: a transparent conductive oxide layer, a cadmium sulfide window layer, a cadmium telluride absorber layer, a back contact layer, and a back electrode. When sunlight strikes the film, electrons flow through it, generating electricity. However, this film can attenuate microwave 5G signal transmission, impacting wireless communications inside and outside buildings, particularly preventing the widely used 5G signals from penetrating buildings.

[0003] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a power-generating glass that is transparent to 5G signals, aiming to solve the problem that the existing power-generating glass affects wireless communications inside and outside buildings.

[0005] The technical solutions of the present invention are as follows: A 5G signal-transmitting power-generating glass comprises a glass substrate and a power-generating thin film layer arranged on one side of the glass substrate. The power generation thin film layer is provided with signal anti-transmission structure units distributed in a two-dimensional periodic array and penetrating the power generation thin film layer. The signal anti-transmission structure units are Y-shaped grooves with central symmetry.

[0006] Optionally, the signal anti-reflection structural units are arranged at equal intervals along the transverse and longitudinal directions of the power generation thin film layer.

[0007] Optionally, a plurality of conductive wires are arranged on the power generation thin film layer, the conductive wires being spaced apart in the transverse direction and extending in the longitudinal direction.

[0008] Optionally, the Y-shaped groove includes three sections of a first straight groove, a second straight groove and a third straight groove extending outward from the center and symmetrical along the center. The width of the first straight groove, the second straight groove and the third straight groove is less than the distance between two adjacent wires, and the length is greater than the distance between two adjacent wires and less than or equal to 1.5 times the distance between two adjacent wires. The first straight groove is located between two adjacent wires, and the second straight groove and the third straight groove are located on both sides of the first straight groove.

[0009] Specifically, the distance between two adjacent wires is 7.0-7.4 mm.

[0010] Specifically, the dimensions of each Y-shaped groove in the transverse direction and in the longitudinal direction are 1-30 mm.

[0011] Specifically, the width of the first straight groove, the second straight groove and the third straight groove is 4-10 mm, and the length is 4-10 mm.

[0012] Compared with the previous existing technology, the present invention has the following beneficial effects: the present invention sets a signal anti-reflection structural unit on the glass substrate, which can achieve high transmittance of electromagnetic waves in the target frequency band while ensuring the power generation efficiency of the power generation glass.

[0013] The centrally symmetrical Y-shaped groove of the present invention also offers advantages such as angle insensitivity and polarization insensitivity, making it highly practical in real-life and production applications. The present invention also allows for tailored etching rates to improve light transmittance, thus enabling a customized balance between light transmittance and transmittance of electromagnetic waves in the target frequency band. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of a single signal anti-transmission structural unit according to an embodiment of the present invention.

[0015] Figure 2 Schematic diagram of the cross-sectional structure of a single signal anti-transmission structure unit according to an embodiment of the present invention.

[0016] Figure 3 Schematic diagram of the tiled structure of the signal anti-transmission structure unit according to an embodiment of the present invention.

[0017] Figure 4 The comparison chart of transmittance curve of b versus working frequency.

[0018] Figure 5 This is a comparison chart of the transmittance curve of electromagnetic wave incident angle versus operating frequency.

[0019] Figure 6 This is a comparison of the transmittance curves when the transverse electric polarization wave and the transverse magnetic polarization wave are incident on the power generation glass. DETAILED DESCRIPTION

[0020] The present invention provides a 5G signal-transmitting power-generating glass. To make the objectives, technical solutions, and effects of the present invention more clear and explicit, the present invention is further described below in detail. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "transverse", "longitudinal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Power-generating glass, which incorporates multiple layers of coatings and is widely used in building energy conservation, significantly attenuates radio and microwave frequencies (5G signals) used in modern technologies like fifth-generation communications. While ensuring 5G signal transmission, the power-generating efficiency of the glass must also be maintained. Therefore, balancing the power generation efficiency of the glass with the transmission of 5G signals (particularly the target sub-6GHz electromagnetic wave frequency band) is a pressing issue.

[0023] Based on this, the embodiment of the present invention provides a 5G signal-transmitting power generation glass, such as Figure 1 、 2 3, comprising a glass substrate 1 and a power generation thin film layer 2 arranged on one side of the glass substrate 1, The power generation thin film layer 2 is provided with signal anti-transmission structural units distributed in a two-dimensional periodic array and penetrating the power generation thin film layer 2 . The signal anti-transmission structural units are Y-shaped grooves 3 that are centrally symmetrical.

[0024] It should be noted that the signal anti-reflection structure unit 2-1 of this embodiment penetrates from the outer surface of the power generation thin film layer 2 to the contact surface with the glass substrate 1. The signal anti-reflection structure unit can be obtained by laser etching.

[0025] This embodiment creates signal anti-transmission structural units distributed in a two-dimensional periodic array on the power generation thin film layer, which can achieve high transmittance for 5G signals while ensuring power generation efficiency.

[0026] This embodiment can change the transmittance of the luminescent glass and the 5G signal transmittance by adjusting the etching size while ensuring the efficiency of current flow. It also has the advantages of angle insensitivity and polarization insensitivity, and has high practical value in actual life and production application scenarios.

[0027] In actual applications, there are many types of power generation thin film layer 2 that can be selected, which can be a variety of film layers including cadmium telluride power generation glass. The shape can also be manufactured into any required shape according to the actual application scenario and process requirements. The material and thickness of the glass substrate can be set according to actual application needs and processing. This is not the invention point of the present invention and will not be described in detail here.

[0028] In some embodiments, the signal anti-reflection structural units are arranged at equal intervals along the transverse and longitudinal directions of the power generation thin film layer 2 .

[0029] That is, the power generation thin film layer 2 is provided with multiple rows of signal anti-reflection structure units spaced apart in the longitudinal direction, and each row is further provided with multiple signal anti-reflection structure units spaced apart in the transverse direction. The arrangement is continued according to the size of the power generation glass.

[0030] In some embodiments, the power generation thin film layer 2 is provided with a plurality of conductors 4 spaced apart in the transverse direction (generally at equal intervals, but may be unequally spaced in special cases) and extending in the longitudinal direction.

[0031] The difficulty of this invention lies in achieving high transmittance for electromagnetic waves in the target frequency band while ensuring power generation efficiency. The conductors are the connecting wires of the power-generating glass. Excessive etching of the conductors will naturally affect power generation efficiency. Therefore, to ensure power generation efficiency, the length of the conductors etched on the power-generating glass should be minimized during laser etching. Therefore, not only can high transmittance for electromagnetic waves in the target frequency band be achieved while ensuring power generation efficiency, but it also offers advantages such as angle insensitivity and polarization insensitivity, which are issues that require comprehensive consideration.

[0032] Based on the above problems, in one embodiment, the Y-shaped groove 3 includes three sections extending outward from the center and symmetrically along the center, namely, a first straight groove 3-1, a second straight groove 3-2 and a third straight groove 3-3. The width of the first straight groove 3-1, the second straight groove 3-2 and the third straight groove 3-3 is less than the distance between two adjacent wires 4, and the length is greater than the distance between two adjacent wires 4 and less than or equal to 1.5 times the distance between two adjacent wires 4. The first straight groove 3-1 is located between two adjacent wires 4, and the second straight groove 3-2 and the third straight groove 3-3 are respectively arranged on both sides of the first straight groove 3-1.

[0033] In some embodiments, the distance between two adjacent wires is 7.0-7.4 mm, and can be 7.0 mm, 7.1 mm, 7.2 mm, 7.3 mm, 7.4 mm, or any other value within the range.

[0034] In some embodiments, the dimensions of each Y-shaped groove 3 in the transverse and longitudinal directions are 1-30 mm, such as 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, and 30 mm. If the dimensions are too large, excessive conductive lines of the power-generating glass may be etched, affecting the power generation efficiency of the glass. If the dimensions are too small, the signal anti-reflection effect may be affected.

[0035] In some embodiments, the width of the first straight groove 3-1, the second straight groove 3-2 and the third straight groove 3-3 is 4-10 mm, and can be preferably 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, or any other value within the range; the length is 4-10 mm, and can be preferably 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, or any other value within the range.

[0036] The present invention will be further described below by means of specific examples.

[0037] Example 1 The size of the power generation glass in this embodiment is 30×30 mm. The glass base material is ordinary transparent glass with a thickness of 3.2 mm, a dielectric constant of 7.239, and a loss tangent of 0.02304. The thickness of the power generation thin film layer 2 is 3 μm, and the sheet resistance is 0.6 Ω.

[0038] like Figure 1-3 As shown, this embodiment provides a 5G signal-transmitting power-generating glass, comprising a glass substrate 1 and a power-generating thin film layer 2 arranged on one side of the glass substrate 1, the power-generating thin film layer 2 is provided with a signal-anti-transmittance structural unit distributed in a two-dimensional periodic array and passing through the power-generating thin film layer 2, and the signal-anti-transmittance structural unit is a centrally symmetrical Y-shaped groove 3.

[0039] The signal anti-transmission structural units in this embodiment are arranged in three rows and three columns at equal intervals along the transverse and longitudinal directions of the power generation thin film layer 2 .

[0040] In this embodiment, eight conductive wires 4 are arranged on the power generation thin film layer 2 at intervals in the transverse direction and extend in the longitudinal direction, and the distance between two adjacent conductive wires is 7.2 mm.

[0041] The Y-shaped groove 3 described in this embodiment includes three sections extending outward from the center and symmetrically along the center, namely, a first linear groove 3-1, a second linear groove 3-2 and a third linear groove 3-3. The first linear groove 3-1 is located between two adjacent wires 4, and the second linear groove 3-2 and the third linear groove 3-3 are respectively arranged on both sides of the first linear groove 3-1.

[0042] In this embodiment, the transverse and longitudinal dimensions (labeled d) of each Y-shaped groove 3 are 21.75 mm. The width (labeled b) of the first, second, and third linear grooves 3-1, 3-2, and 3-3 are all 6 mm, and their lengths (labeled a) are all 10 mm.

[0043] This embodiment creates periodic small-area pattern etching on the power generation thin film layer 2, thereby achieving high transmittance of 5G signals (especially electromagnetic waves in the target frequency band Sub-6GHz) while ensuring power generation efficiency.

[0044] Figure 4 The following plot compares the transmittance curves of b versus operating frequency. It shows the effect of b (representing different etch line widths) on transmittance at the operating frequency. Varying b within a certain range consistently achieves transmission of electromagnetic waves within the target frequency band. When b is small, the signal anti-reflection structural unit exhibits a stronger resonance effect on electromagnetic waves, resulting in higher transmittance. As b increases, the resonant frequency shifts slightly, and the transmittance effect decreases slightly, but remains at a relatively high level. This result demonstrates that by optimizing the etch line width parameter, the resonant frequency of the signal anti-reflection structural unit can be manipulated to a certain extent, thereby enhancing the transmission of electromagnetic waves within a specific frequency band.

[0045] Figure 5 The transmittance curve comparison diagram of the electromagnetic wave incident angle versus the operating frequency shows that when the electromagnetic wave is incident on the power-generating glass of Example 1 at different angles, the transmittance of the electromagnetic wave gradually decreases when the incident angle gradually increases from 0° to 40°, but the change amplitude is small, and the shape of the transmittance curve remains basically unchanged, indicating that the frequency response is relatively stable. Therefore, this Example 1 has the advantage of being angle-insensitive, which is of great value in practical applications.

[0046] The transverse electric polarization wave (referred to as TE wave) and the transverse magnetic polarization wave (referred to as TM wave) were incident on the power generation glass of Example 1, and the transmittance of Example 1 was tested. The results are as follows: Figure 6 The transmittance curve comparison diagram shown in the figure is Figure 6 It can be seen that the transmittance curves for transversely electrically polarized waves and longitudinally magnetically polarized waves nearly overlap, thus demonstrating that the power-generating glass provided in Example 1 of the present invention has the advantage of polarization insensitivity. In real-world applications and deployments, the polarization of base station signals can vary due to multipath and other propagation-related phenomena. The signal-anti-transmission structure of the present invention exhibits similar transmission characteristics for different electromagnetic wave modes (including TE and TM waves). This performance is crucial, demonstrating the robustness of the present invention in practical deployments and further illustrating that the signal-anti-transmission structural unit of the present invention provides polarization stability.

[0047] This embodiment 1 achieves enhanced signal transmission of power generation glass by etching a periodically distributed structural unit pattern on the power generation layer, which is suitable for a variety of indoor and outdoor application scenarios and has great significance in enhancing signal transmission in the field of communication glass.

[0048] In summary, the 5G signal-transmitting power-generating glass provided by the present invention achieves high transmittance for electromagnetic waves in the target frequency band while maintaining the glass's power generation efficiency. The centrally symmetrical Y-shaped groove also offers advantages such as angle insensitivity and polarization insensitivity, making it highly practical in real-life and production applications.

[0049] It should be understood that the application of the present invention is not limited to the above examples. For those skilled in the art, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A 5G signal-transmitting power-generating glass, comprising a glass substrate (1) and a power-generating thin film layer (2) arranged on one side of the glass substrate (1), characterized in that: The power generation thin film layer (2) is provided with signal anti-transmission structural units distributed in a two-dimensional periodic array and penetrating the power generation thin film layer (2), and the signal anti-transmission structural units are Y-shaped grooves (3) with central symmetry.

2. The 5G signal-transmitting power generation glass according to claim 1, characterized in that: The signal transmission-enhancing structural units are arranged at equal intervals along the transverse and longitudinal directions of the power generation thin film layer (2).

3. The 5G signal-transmitting power generation glass according to claim 1, characterized in that: A plurality of conductive wires (4) are arranged on the power generation thin film layer (2), spaced apart in the transverse direction and extending in the longitudinal direction.

4. The 5G signal-transmitting power generation glass according to claim 3, characterized in that: The Y-shaped groove (3) comprises three sections, namely a first linear groove (3-1), a second linear groove (3-2) and a third linear groove (3-3), which extend outward from the center and are symmetrical along the center. The width of the first linear groove (3-1), the second linear groove (3-2) and the third linear groove (3-3) is less than the distance between two adjacent wires (4), and the length is greater than the distance between the two adjacent wires (4) and less than or equal to 1.5 times the distance between the two adjacent wires (4). The first linear groove (3-1) is located between the two adjacent wires (4), and the second linear groove (3-2) and the third linear groove (3-3) are respectively arranged on both sides of the first linear groove (3-1).

5. The 5G signal-transmitting power generation glass according to claim 3, characterized in that: The distance between two adjacent wires is 7.0-7.4mm.

6. The 5G signal-transmitting power generation glass according to claim 3, characterized in that: The dimensions of each Y-shaped groove (3) in the transverse direction and in the longitudinal direction are 1-30 mm.

7. The 5G signal-transmitting power generation glass according to claim 4, characterized in that: The first straight groove (3-1), the second straight groove (3-2) and the third straight groove (3-3) have a width of 4-10 mm and a length of 4-10 mm.

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