CN114905831B - Transparent film for enhancing wireless signals and application thereof - Google Patents
Transparent film for enhancing wireless signals and application thereof Download PDFInfo
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- CN114905831B CN114905831B CN202210566320.8A CN202210566320A CN114905831B CN 114905831 B CN114905831 B CN 114905831B CN 202210566320 A CN202210566320 A CN 202210566320A CN 114905831 B CN114905831 B CN 114905831B
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- 230000002708 enhancing effect Effects 0.000 title abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 12
- 238000002834 transmittance Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 45
- 239000011521 glass Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Near-Field Transmission Systems (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a transparent film for enhancing wireless signals, which comprises a transparent medium and a circuit layer, wherein the circuit layer is adhered to the transparent medium, the circuit layer is formed into a grid-shaped structure by criss-cross interconnection of a plurality of metal wires, and at least one action unit is arranged on the transparent medium. Under the condition of no external power supply, the specific electromagnetic reflection can be generated by adjusting various parameters of the metal shape in the circuit layer, so that the specific electromagnetic reflection is mutually counteracted with the electromagnetic reflection of the carrier, and the transmission effect of electromagnetic waves is improved; the transmission direction of electromagnetic waves can also be adjusted so as to enhance the electromagnetic signals of a specific area. The invention has the advantages of good light transmission effect, simple structure, easy installation, simple operation, stable performance, wide popularization and application, and the like.
Description
Technical Field
The invention relates to the technical field of wireless signal transmission, in particular to a transparent film for wireless signal enhancement and application thereof.
Background
The transmission effect of the radio signal is closely related to the situation of the radio channel. The wireless channel is subject to noise, interference, blocking and multipath, which may also change over time if the terminal is mobile. Therefore, the radio channel cannot be a stable and high-speed communication system medium in this case. In practical applications, the following problems are often encountered: 1 the transmission of wireless signals is located outdoors, resulting in poor indoor signals due to blockage and attenuation of building walls, or signals can only be received in small areas of the room. 2 when the high-speed rail is in operation, the mobile communication signal needs to pass through the high-speed rail window first and then enter the high-speed rail. The glass has larger reflection and certain loss to electromagnetic waves, so that the internal signal coverage of the high-speed rail is poor. The 3-room system can effectively improve the electromagnetic coverage effect in the building, however, the traditional room antenna can generate visual pollution and needs wiring and other operations.
In order to improve the transmission effect of the wireless signal, the signal transmitting power can be improved, however, the biological and environmental effects near the transmitting antenna can be influenced by the excessive power, so the state specially specifies the specification of the electromagnetic radiation safety limit standard for avoiding the potential adverse effect of the electromagnetic radiation on the human body. The wireless signal transmission effect is improved, the received weaker electromagnetic waves can be used, corresponding active equipment and passive equipment are used for amplifying signals, and then the signals are correspondingly radiated, however, the method needs to supply power to the equipment, and when the method is applied to environments such as trains, high-speed rails and cars, the original power system needs to be modified and normal power supply is guaranteed, the system can play a role.
Conventional materials and equipment generally have weak light transmittance, so that the installation and the use of the material and equipment are easy to draw attention, and cause visual pollution and unnecessary worry; the transparent substrate is adopted, so that the attention of equipment can be remarkably reduced, and meanwhile, the glass is very easy to combine with glass of related carriers, and the equipment is easier to install and use.
Unlike the conventional signal enhancement method, the transparent film for wireless signal enhancement can change the electromagnetic signal incident on the transparent film through the design of the circuit layer under the condition that no additional power supply is needed, thereby reducing the overall electromagnetic signal reflection and increasing the electromagnetic transmission; it can also change the transmission direction of electromagnetic signals by design, thereby enhancing the electromagnetic signals in specific areas.
Disclosure of Invention
According to the defects of the prior art, the invention provides a transparent film for enhancing wireless signals and application thereof, and solves the problem that the signals of partial areas of the traditional wireless signals are poor due to objects such as walls, car bodies and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a transparent film for radio signal reinforcing, includes transparent medium and circuit layer, the circuit layer is pasted on transparent medium, the circuit layer is by a plurality of metal wire vertically and horizontally staggered interconnect formation grid-like structure, be provided with at least one action unit on the transparent medium.
Preferably, the shape of the action unit is any one or more of square, rectangle, circle and triangle.
Preferably, the action unit comprises a first film layer and a second film layer, the first film layer and the second film layer are symmetrically adhered to two sides of the transparent medium, metal sheets matched with the first film layer are arranged on the circuit layer, and metal patches are arranged on the second film layer corresponding to the metal sheets.
Preferably, the first film layer and the second film layer are symmetrically provided with notches.
Preferably, the notch is any one of square, rectangle, circle and triangle.
Preferably, the metal sheet corresponds to the notch position.
Preferably, the thickness of the transparent film is not more than 2mm.
Preferably, the transparent film has a light transmittance of not less than 70%.
The invention also discloses an application of the transparent film for wireless signal enhancement, wherein the transparent film is fixed on a carrier through any one of pasting, mechanical fastening and elastic compression.
Preferably, at least one transparent film is fixed at any position of the carrier.
The invention has the following characteristics and beneficial effects:
by adopting the technical scheme, under the condition of no external power supply, the specific electromagnetic reflection can be generated by adjusting various parameters of the metal shape in the circuit layer, so that the specific electromagnetic reflection is mutually counteracted with the electromagnetic reflection of the carrier, and the transmission effect of electromagnetic waves is improved; the transmission direction of electromagnetic waves can also be adjusted so as to enhance the electromagnetic signals of a specific area. The invention has the advantages of good light transmission effect, simple structure, easy installation, simple operation, stable performance, wide popularization and application, and the like.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1a is a schematic diagram of an embodiment of the present invention.
Fig. 1b is a schematic structural diagram of the circuit layer in fig. 1 a.
Fig. 2 is a general schematic view of electromagnetic waves incident on glass and walls.
Fig. 3 is a schematic diagram of the working principle of the present invention.
Fig. 4 is a schematic diagram of the principle of change of transmission direction of the present invention.
Fig. 5 is a schematic illustration of the metallization of the present invention.
In the figure: 1-transparent film, 2-action unit, 3-transparent medium, 4-carrier, 5-first film layer, 6-metal patch, 7-second film layer, 8-circuit layer, 9-metal sheet, 10-metal layer.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention provides a transparent film for wireless signal enhancement, which comprises a transparent medium 3 and a circuit layer 8, wherein the circuit layer 8 is attached to the transparent medium 3, the circuit layer 8 is formed into a grid-shaped structure by mutually connecting a plurality of metal wires in a crisscross manner, and at least one action unit 2 is arranged on the transparent medium 3, as shown in fig. 1 and 5.
In the above technical scheme, the metal wires are crisscrossed and connected to form the grid-like structure circuit layer 8 to replace the traditional metal layer 10, so that the overall transparency is greatly improved. In order to ensure the electrical properties and light transmittance of the action unit 2, the circuit layer 8 may be formed by interconnecting thin wires. The metal wire grids can replace metal surfaces in the whole, and meanwhile, because larger gaps exist among the metal wire grids, the light transmittance of the whole structure is better.
It will be appreciated that the transparent medium, used to support the circuit layer and facilitate fixation, may be a layer, or a combination of multiple layers of the same or different materials. The part of the transparent medium can be made of other transparent or opaque materials, and mechanical operations such as hole digging and the like can be performed, so that the material cost of the transparent medium is saved.
It will be appreciated that the circuit layer, which is used to operate on radio waves, may control the amplitude, phase, transmission angle, etc. of the radio wave signal separately or simultaneously, thereby achieving signal enhancement in a specific area.
It can be understood that the circuit in the circuit layer can be an integral body or can be formed by combining a plurality of action units with the same or different shapes.
The invention further provides that the action unit comprises a first film layer 5 and a second film layer 7, the first film layer 5 and the second film layer 7 are symmetrically adhered to two sides of the transparent medium 3, the circuit layer 8 is provided with a metal sheet 9 matched with the first film layer 5, and the second film layer 7 is provided with a metal patch 6 corresponding to the metal sheet 9. The first film layer 5 and the second film layer 7 are symmetrically provided with notches. The notch is any one of square, rectangle, round and triangle, and the metal sheet 9 corresponds to the notch position.
It will be appreciated that the notch is formed by etching techniques, by etching different types of shapes, the size of which is related to the operating frequency. The shapes can adopt a periodic arrangement or a non-periodic arrangement mode, and after the electromagnetic waves irradiate the circuit layer, the electromagnetic waves at all positions are modulated so as to control the amplitude and phase parameters of the electromagnetic waves.
In the above technical solution, the first thin film layer radiates the incident electromagnetic wave to the circuit layer 8, the metal sheet 9 couples the incident electromagnetic wave to the second thin film layer 7 in the designated area, and finally the pre-modulated metal patch 6 adjusts the amplitude and phase parameters of the coupled electromagnetic wave to radiate in the required direction. The metal lines on the wiring layer 8 serve to absorb the incident wave coupled to the metal sheet 9 by the first thin film layer 5 and the partially reflected wave generated by the second thin film layer 7, thereby reducing interference between electromagnetic waves and improving transmission efficiency of the electromagnetic waves.
Specifically, as shown in fig. 4, by changing parameters such as the size, shape, rotation angle, etc. of the metal patch 6, the electromagnetic wave incident thereon is adjusted, so that not only the characteristic of the emitted electromagnetic wave but also the phase of the transmitted electromagnetic wave can be controlled.
The electromagnetic wave phase on the whole transparent film 1 is reasonably designed, and the corresponding design formula is as follows:
p＝0,±1,±2,…
wherein phi is mn Is the amount of phase delay required by the m-th row and n-th column units,is the wave vector direction of the incident electromagnetic wave, +.>Is the wave vector direction of the projected electromagnetic wave. Based on the equation, the phase delay required by each unit can be calculated, so that the transmission direction of the transmitted electromagnetic wave can be controlled and transmitted to the target source position. Therefore, the transparent film can cover the transmitted electromagnetic wave in the weak signal area, thereby improving the signal coverage of the area.
In a further arrangement of the present invention, the shape of the action unit 2 is any one or a combination of a plurality of square, rectangle, circle and triangle.
Further, the thickness of the transparent film 1 is not more than 2mm. The light transmittance of the transparent film 1 is not less than 70%.
The invention also discloses an application of the transparent film for wireless signal enhancement, as shown in fig. 3 and 4, wherein the transparent film 1 is fixed on the carrier 4 by any one of pasting, mechanical fastening and elastic pressing.
As shown in fig. 2, it can be understood that electromagnetic waves generated by devices such as base stations and mobile phones are decomposed into three parts, namely reflection, transmission and loss when they encounter a carrier 4 such as glass and a wall. The refractive index of air is different from that of glass, wall, etc., so that reflection is generated. And the electromagnetic wave energy is lost due to more internal components such as glass, wall bodies and the like. Finally only a small portion of the electromagnetic wave is transmitted.
The transparent film 1 of the invention is arranged on the positions of glass, wall and the like, when electromagnetic waves are incident on the film, the circuit layer on the film can correspondingly modulate the electromagnetic waves, so that part of the electromagnetic waves are reflected back with a certain phase. The reflected electromagnetic wave and the original reflected electromagnetic wave can be mutually weakened and counteracted, so that the energy of the incident electromagnetic wave is increased.
Further, at least one transparent film 1 is fixed at an arbitrary position of the carrier 4.
It will be appreciated that one transparent film may be mounted on the outer or inner surface of the carrier or the inside of the carrier, or a plurality of transparent films may be mounted on the outer, inner and inside of the carrier, respectively.
In the above technical scheme, the transparent film 1 is arranged at different positions of the glass and the wall body, so that more electromagnetic wave energy can be modulated, and the purposes of better increasing the transmission effect and covering a specific area are achieved.
It will be appreciated that it may also be used in conjunction with other devices. The transparent film is a passive device, does not need to additionally provide power, and has the advantages of convenient installation, simple structure, stable performance, mass production and the like.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments, including the components, without departing from the principles and spirit of the invention, yet fall within the scope of the invention.
Claims (6)
1. The utility model provides a transparent film for radio signal reinforcing, its characterized in that, includes transparent medium (3) and circuit layer (8), circuit layer (8) paste and apply on transparent medium (3), circuit layer (8) are by a plurality of metal lines vertically and horizontally interconnect formation grid-like structure, be provided with at least one action unit (2) on transparent medium (3), action unit (2) shape is the combination of any one or more in square, rectangle, circular, triangle-shaped, action unit includes first film layer (5) and second film layer (7), first film layer (5) and second film layer (7) are symmetrical structure and paste the both sides on transparent medium (3) that have applied circuit layer (8), be provided with on circuit layer (8) with first film layer (5) matched with sheetmetal (9), correspond sheetmetal (9) on second film layer (7) and be provided with metal patch (6), first film layer (5) and second film layer (7) have been seted up corresponding breach position of mutual symmetry film (9).
2. The transparent film for wireless signal enhancement according to claim 1, wherein the notch is any one of square, rectangular, circular, triangular.
3. The transparent film for wireless signal enhancement according to claim 1, wherein the thickness of the transparent film is no more than 2mm.
4. The transparent film for wireless signal enhancement according to claim 1, wherein the light transmittance of the transparent film is not less than 70%.
5. Use of a transparent film for wireless signal enhancement according to any of claims 1-4, characterized in that the transparent film is fixed to the carrier (4) by any of gluing, mechanical fastening, elastic compression.
6. Use of a transparent film for wireless signal enhancement according to claim 5, characterized in that at least one transparent film is fixed in any position on the carrier (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210566320.8A CN114905831B (en) | 2022-05-24 | 2022-05-24 | Transparent film for enhancing wireless signals and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210566320.8A CN114905831B (en) | 2022-05-24 | 2022-05-24 | Transparent film for enhancing wireless signals and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114905831A CN114905831A (en) | 2022-08-16 |
| CN114905831B true CN114905831B (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210566320.8A Active CN114905831B (en) | 2022-05-24 | 2022-05-24 | Transparent film for enhancing wireless signals and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114905831B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874059A (en) * | 2005-05-31 | 2006-12-06 | 西北工业大学 | Medium base plate of left hand material in use for highly sensitive antenna of handset |
| CN111655018A (en) * | 2020-05-25 | 2020-09-11 | 航天科工武汉磁电有限责任公司 | Anti-electromagnetic leakage transparent material based on single-layer conductive film |
| CN113688550A (en) * | 2021-08-31 | 2021-11-23 | 江苏易珩空间技术有限公司 | Incident wave anti-reflection glass based on transparent metal material and anti-reflection method |
-
2022
- 2022-05-24 CN CN202210566320.8A patent/CN114905831B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874059A (en) * | 2005-05-31 | 2006-12-06 | 西北工业大学 | Medium base plate of left hand material in use for highly sensitive antenna of handset |
| CN111655018A (en) * | 2020-05-25 | 2020-09-11 | 航天科工武汉磁电有限责任公司 | Anti-electromagnetic leakage transparent material based on single-layer conductive film |
| CN113688550A (en) * | 2021-08-31 | 2021-11-23 | 江苏易珩空间技术有限公司 | Incident wave anti-reflection glass based on transparent metal material and anti-reflection method |
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| Publication number | Publication date |
|---|---|
| CN114905831A (en) | 2022-08-16 |
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