KR102093467B1 - Powerless Wi-Fi Extender - Google Patents

Abstract

The present invention includes a first support plate and a plurality of first conductive patterns disposed on both sides of the first support plate, the first pattern module and the second support plate attached to one surface of the base plate and both sides of the second support plate. Disclosed is a plurality of second conductive patterns disposed, and the first pattern module and the second pattern module are spaced apart from each other and disclose a powerless Wi-Fi extension device that transmits and transmits an incoming Wi-Fi signal.

Description

Powerless Wi-Fi Extender

The present invention relates to a non-powered Wi-Fi extension device that extends the transmission distance of a Wi-Fi signal without using power.

Wi-Fi devices are frequently used in homes or offices, but if distances or obstacles, such as walls, increase the reception sensitivity of the Wi-Fi signal, there is a problem that the network is disconnected and then connected. A separate Wi-Fi amplifying device is used to increase the reception sensitivity and the reception distance of the Wi-Fi signal.

The currently used Wi-Fi amplifying device includes various circuits for amplifying the Wi-Fi signal, and requires power to drive the circuit. The Wi-Fi amplifying device must be installed at an outlet or a location where the USB terminal is installed in order to receive power, and there is a limitation in the installation location.

An object of the present invention is to provide a powerless Wi-Fi extension device that extends a transmission distance of a Wi-Fi signal without using power.

The non-powered Wi-Fi expansion device of the present invention includes a first support plate and a plurality of first conductive patterns disposed on both sides of the first support plate, the first pattern module and the second support plate attached to one surface of the base plate and the It includes a plurality of second conductive patterns disposed on both sides of the second support plate, and the first pattern module and the second pattern module are positioned to be spaced apart from each other, and are transmitted by transmitting incident Wi-Fi signals. .

In addition, the non-power Wi-Fi expansion device of the present invention further comprises a case having a first surface and a second surface facing each other while being formed with an area corresponding to the area of the first pattern module, wherein the first pattern module Located on the inner side of the first side of the case, the second pattern module may be located on the inner side of the second side of the case.

In addition, the case includes a case body having a first surface and forming a box shape opened in a direction of the second surface and a case cover coupled to the second surface, wherein the case cover is provided with the case body. The second pattern module may be fixed and supported on an opposite surface.

Further, the case may be formed of polymethacrylimide foam, Teflon, polypropylene or polyvinyl chloride.

In addition, the first support plate and the second support plate are formed to a thickness of 0.4 to 1.2mm, and may be formed of polyimide, polystyrene, polyethylene, PDMS, or Teflon.

In addition, the first conductive pattern and the second conductive pattern are formed to a thickness of 20 μm to 60 μm, and may be formed of copper, silver, aluminum, gold, platinum or nickel.

In addition, the first conductive pattern and the second conductive pattern may be formed in a circular ring shape, a square ring shape, a pentagonal ring shape, a hexagonal ring shape, or an octagonal ring shape.

In addition, the first conductive pattern and the second conductive pattern may be formed in a circular ring shape having an inner diameter of 20 to 30 mm and an outer diameter of 40 to 60 mm.

In addition, the first conductive patterns may be formed to be spaced apart from each other such that the distance between the centers of the adjacent first patterns is 1.1 to 1.5 times the outer diameter of the first conductive pattern.

The non-powered Wi-Fi extension device of the present invention can be easily installed at a required location on a wall inside the building to transmit Wi-Fi signals over a longer distance.

In addition, the non-powered Wi-Fi extension device of the present invention uses a metal meta pattern to extend the transmission distance of the Wi-Fi signal, so there is no need to separately supply power.

In addition, the powerless Wi-Fi extension device of the present invention does not require a wire or plug for power supply, so there is no restriction on the installation location.

1 is a perspective view of a powerless Wi-Fi extension device according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the powerless Wi-Fi extension device of FIG. 1.
3 is a vertical cross-sectional view of AA of FIG. 1.
4 is a schematic diagram showing the operation of the powerless Wi-Fi expansion device installed inside the building.
5 is a strength distribution diagram of the Wi-Fi signal by the non-power Wi-Fi extension device of the present invention.
6 is a strength distribution diagram of a Wi-Fi signal in a state where the non-power Wi-Fi extension device is not attached.
7 is a graph of transmittance of the powerless Wi-Fi extension device of the present invention.
8 is a graph of the relative transmittance of the powerless Wi-Fi extension device of the present invention.
9 is an S-parameter graph of the powerless Wi-Fi extension device of the present invention.

Hereinafter, a powerless Wi-Fi extension device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, a structure of a powerless Wi-Fi extension device according to an embodiment of the present invention will be described.

1 is a perspective view of a powerless Wi-Fi extension device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the powerless Wi-Fi extension device of FIG. 1. 3 is a vertical cross-sectional view taken along line A-A in FIG. 1.

The non-powered Wi-Fi expansion device 100 according to an embodiment of the present invention includes a case 110, a first pattern module 120, and a second pattern module 130 with reference to FIGS. 1 to 3. Is formed.

The non-power Wi-Fi expansion device 100 may be accommodated in the case 110, the first pattern module 120 and the second pattern module 130 are spaced parallel to each other. The non-power Wi-Fi extension device 100 may be spaced apart from each other while the first pattern module 120 and the second pattern module 130 are fixed to one inner surface and the other inner surface of the case 110. The non-power Wi-Fi extension device 100 may adjust the separation distance between the first pattern module 120 and the second pattern module 130 by adjusting the depth of the case 110. The non-power Wi-Fi extension device 100 may transmit a Wi-Fi signal incident on one side to the other side and transmit it over a longer distance. The first pattern module 120 and the second pattern module 130 may be spaced at a separation distance of 60 to 90 mm. The separation distance may determine a transmission frequency through the non-powered Wi-Fi extension device. Therefore, it is necessary that the separation distance is set so that the transmittance of the Wi-Fi frequency is high. If the separation distance is too small or too large, the transmittance to the Wi-Fi frequency is low.

The non-powered Wi-Fi extension device 100 is supported by separate support means in a state in which the first pattern module 120 and the second pattern module 130 are separated by a predetermined distance, and the case 110 has a first pattern It may be formed by wrapping the module 120 and the second pattern module 130. At this time, the case 110 may be formed of a flexible material.

The powerless Wi-Fi extension device 100 is formed in a plate shape as a whole, so it can be easily installed in various locations such as a building wall. In addition, since the powerless Wi-Fi extension device 100 does not use power, there are no wires and plugs, and there are no restrictions on the installation location.

The case 110 may be formed in a hollow and plate-shaped box shape. The case 110 may be formed in a shape having a predetermined width (W), height (H), and depth (D). The case 110 includes a first surface 100a and a second surface 100b that face each other, and a third surface 100c that is connected to upper and lower surfaces of the first surface 100a and the second surface 100b, respectively. ) And the fourth surface (100d) and the first surface (100a) and the second surface (100b) are respectively connected to both sides of the fifth surface (100e) and the sixth surface (100f) may be formed. The first surface 100a and the second surface 100b determine the width and height of the case 110, and the third surface 100c and the fourth surface 100d determine the width and depth of the case 110. The fifth surface 100e and the sixth surface may determine the height and depth of the case 110. The first surface 100a and the second surface 100b may be formed with areas corresponding to the first pattern module 120 and the second pattern module 130. The non-powered Wi-Fi extension device 100 transmits a Wi-Fi signal incident on the first surface 100a through the second surface 100b.

The case 110 may accommodate the first pattern module 120 and the second pattern module 130 spaced apart from each other in parallel. For example, the first pattern module 120 may be located on the inner surface of the first surface 100a, and the second pattern module 130 may be located on the inner surface of the second surface 100b. Therefore, the case 110 supports the first pattern module 120 and the second pattern module 130 apart by a distance corresponding to the depth.

The case 110 may be formed by separating the case body 111 and the case cover 115. That is, the case 110 may be formed by separating the second surface (100b). Meanwhile, the case 110 may be formed to be separated from each other at a position corresponding to half of the depth. In this case, the case 110 may be formed in a shape in which the case body 111 and the case cover 115 are symmetrical to each other. In addition, the case cover 115 may be formed to have a predetermined depth.

The case body 111 is provided with a first surface (100a), the second surface (100b) direction may be formed in an open box shape. For example, the case body 111 may be formed by including a first surface 100a, a third surface 100c, a fourth surface 100d, a fifth surface 100e, and a sixth surface 100f. Can be. The case body 111 may be formed with an area in which the first surface 100a corresponds to the area of the first pattern module 120. The case body 111 may be formed to a depth corresponding to the separation distance between the first pattern module 120 and the second pattern module 130. The case body 111 supports the first pattern module 120 fixed to the inner surface of the first surface 100a.

The case cover 115 may be formed in a plate shape having an area corresponding to the second surface 100b. The case cover 115 is coupled to the opened second surface 100b of the case body 111 and may shield the second surface 100b. The case cover 115 may be formed with an area corresponding to the second pattern module 130. The case cover 115 may be supported by fixing the second pattern module 130 to a surface facing the case body 111. Meanwhile, the case cover 115 may further include an accommodating groove (not shown) in which the second pattern module 130 is accommodated on the inner surface to stably support the second pattern module 130.

The case 110 may be formed of a material having a relative permittivity of 1 to 5. For example, it may be formed of polymethacrylimide foam (trade name Rohacell), Teflon, polypropylene or polyvinyl chloride. In the case 110, the first surface 100a and the second surface 100b are formed to a thickness of 1.0 to 5 mm, and preferably formed to a thickness of 2.0 to 3.2 mm. When the thicknesses of the first surface 100a and the second surface 100b of the case 110 are too thin, there is a side in which mechanical strength is weak and it is difficult to maintain a plate shape or a desired shape. In addition, if the thickness of the first surface 100a and the second surface 100b of the case 110 is too thick, there is a problem that the transmittance of electromagnetic waves is lowered.

The first pattern module 120 is formed to include a first support plate 121 and a first conductive pattern 125. The first pattern module 120 is formed by positioning the first conductive patterns 125 on both sides of the first support plate 121 in a constant pattern. The first pattern module 120 is located on the inner surface of the first surface 100a of the case 110. The first pattern module 120 may be fixed to the inner surface of the first surface 100a of the case 110 by a separate adhesive. In addition, the first pattern module 120 may be fixed to the inner surface of the first surface 100a of the case 110 by a separate bolt, tack or fixing hook. At this time, the first pattern module 120 may be attached to be in close contact with the inner surface of the first surface 100a of the case 110,

The first pattern module 120 increases the transmission efficiency of electromagnetic waves in the 2.4 GHz band or 5 GHz band, which is a frequency band of a Wi-Fi signal. The first pattern module 120 may increase the transmission efficiency of electromagnetic waves in a specific frequency band when the thickness of the first support plate 121 and the size or arrangement period of the first conductive pattern 125 are adjusted. On the other hand, when the first conductive pattern 125 is formed on only one surface of the first support plate 121, unlike the first pattern module 120, there is a problem in that electromagnetic waves have nonlinearity and are difficult to use as a transmissive member.

The first support plate 121 is formed of a resin film or a resin film. The first support plate 121 may be formed of a polyimide material. The first support plate 121 may be formed of a material such as polystyrene, polyethylene, PDMS, or Teflon. The first support plate 121 supports the first conductive pattern 125 formed on both sides. In addition, the first support plate 121 may function to collect and transmit electromagnetic waves together with the first conductive pattern 125. The first support plate 121 is formed to a thickness of 0.4 ~ 1.2mm, preferably 0.6 ~ 1.0mm thickness. If the thickness of the first support plate 121 is too small or large, the transmittance of electromagnetic waves may be reduced. In addition, when the thickness of the first support plate 121 is too small or large, a frequency modulation phenomenon of electromagnetic waves may occur. The first support plate 121 may be formed with an area corresponding to the first surface 100a of the case 110.

The first conductive pattern 125 may be formed in a plate shape of a circular ring shape or a polygonal ring shape such as a square ring, pentagonal ring, hexagonal ring, or octagonal ring. The first conductive pattern 125 is formed to a thickness of 20㎛ ~ 60㎛, preferably 30 ~ 50㎛ thickness. When the first conductive pattern 125 has a circular ring shape, the first conductive pattern 125 may be formed with an inner diameter of 20 to 30 mm and an outer diameter of 40 to 60 mm. The inner diameter, outer diameter and thickness of the first conductive pattern 125 may affect the transmission frequency of electromagnetic waves. Therefore, if the inner diameter, outer diameter, and thickness of the first conductive pattern 125 are too small or large, the transmission frequency of the electromagnetic wave is out of the Wi-Fi frequency. On the other hand, when the first conductive pattern 125 is formed in a polygonal ring shape, it is formed to have a width or side length having the same area as a circle having a diameter in the above range. That is, the outer side of the first conductive pattern 125 is formed in a shape having a width or a length of a side corresponding to an area of a circle having an outer diameter. In addition, the inside of the first conductive pattern 125 is formed in a shape having a width or a side length corresponding to a circle having an inner diameter.

The first conductive pattern 125 may be formed by being arranged in a constant pattern on both sides of the first support plate 121. The first conductive patterns 125 are arranged to be spaced apart at equal intervals in the row direction and the column direction. In addition, the first conductive pattern 125 may be arranged to form a honeycomb shape. The first conductive pattern 125 is formed at the same position on both sides of the first support plate 121. That is, the first conductive pattern 125 is arranged to be symmetric about the first support plate 121. The first conductive patterns 125 may be spaced apart from each other such that the distance between the centers of the first conductive patterns 125 adjacent to each other is 1.1 to 1.5 times the outer diameter of the first conductive patterns 125. For example, when the outer diameter of the first conductive pattern 125 is 50 mm, the first conductive pattern 125 may be spaced so that the distance between the centers of two adjacent patterns is 55 to 75 mm. The distance between the centers may affect the transmittance of electromagnetic waves. If the distance between the centers is too small or too large, the transmittance of electromagnetic waves may decrease.

The inner diameter, the outer diameter, and the separation distance of the first conductive pattern 125 affect the transmission peak frequency band showing the highest transmittance when electromagnetic waves are transmitted. That is, the transmission peak frequency showing the highest transmittance may be different according to the inner diameter, outer diameter, and separation distance of the first conductive pattern 125. In the first conductive pattern 125, inner and outer diameters and separation distances may be determined such that a 2.4 GHz band or a 5 GHz band, which is a frequency band of a Wi-Fi signal, becomes a transmission peak frequency.

The first conductive pattern 125 is formed of an electrically conductive metal, and may be formed of a metal such as copper, silver, aluminum, gold, platinum or nickel.

The second pattern module 130 is formed to include a second support plate 131 and a second conductive pattern 135. The second pattern module 130 is formed in the same way as the first pattern module 120. That is, the second support plate 131 and the second conductive pattern 135 are formed in the same manner as the first support plate 121 and the first conductive pattern 125. The second pattern module 130 is fixed to the inner surface of the second surface 100b of the case 110. In addition, the second pattern module 130 may be fixed to the inner surface of the case cover 115. The second pattern module 130 may be adhered by a separate adhesive. At this time, the second pattern module 130 is positioned at a position facing each other with the first pattern module 120 located on the first surface 100a of the case 110. That is, the second conductive pattern 135 may be located at a position facing the first conductive pattern 125.

The following describes the operation and simulation and evaluation results for the powerless Wi-Fi extension device according to the present invention.

4 is a schematic diagram showing the operation of the powerless Wi-Fi expansion device installed inside the building. 5 is a strength distribution diagram of the Wi-Fi signal by the non-power Wi-Fi extension device of the present invention. 6 is a strength distribution diagram of a Wi-Fi signal when the non-power Wi-Fi extension device of the present invention is not attached. 7 is a graph of transmittance of the powerless Wi-Fi extension device of the present invention. 8 is a graph of the relative transmittance of the powerless Wi-Fi extension device of the present invention. 9 is an S-parameter graph of the powerless Wi-Fi extension device of the present invention.

The simulation and evaluation of the non-powered Wi-Fi extension device 100 according to the present invention was performed in a frequency section including 2.4 GHz, which is a frequency band of the Wi-Fi signal. In addition, the first support plate 121 and the second support plate 131 were formed of a polyimide thin film having a thickness of 0.8 mm. The first conductive pattern 125 and the second conductive pattern 135 are copper thin films, and have a thickness of 35 nm, an inner diameter of 25 mm, and an outer diameter of 50 mm. The first conductive pattern 125 and the second conductive pattern 135 were disposed such that the distance between the centers was 65 mm. In addition, the first conductive pattern 125 and the second conductive pattern 135 were formed to be separated by 75 mm.

First, the operation of the powerless Wi-Fi extension device of the present invention will be described.

Referring to FIG. 4, the non-powered Wi-Fi extension device 100 may be installed at a location where the Wi-Fi signal is weakly separated from the Wi-Fi transmitter in the building. The non-powered Wi-Fi extension device 100 may transmit a Wi-Fi signal to transmit a Wi-Fi signal over a longer distance. Typically, a Wi-Fi signal used inside a building such as a home or office is transmitted at a distance of approximately 10 m or less. On the other hand, the non-power Wi-Fi extension device 100 transmits the incoming Wi-Fi signal over a longer distance.

The following describes the measurement results of the intensity distribution of the electromagnetic wave signal by the non-powered Wi-Fi extension device of the present invention.

Referring to FIG. 5, the non-powered Wi-Fi extension device 100 of the present invention is located between a Wi-Fi originating device and a Wi-Fi receiving device (eg, a smart phone). The non-powered Wi-Fi extension device 100 receives the electromagnetic wave transmitted from the Wi-Fi originating device and transmits it again. Therefore, it can be seen that the electromagnetic wave of approximately 24.2 V / m is received in the Wi-Fi receiver. In addition, it can be seen that the Wi-Fi signal transmitted from the Wi-Fi originating device is collected in the direction of the non-power Wi-Fi extension device 100. Therefore, it can be seen that the non-power Wi-Fi extension device 100 focuses electromagnetic waves and retransmits them.

On the other hand, when there is no powerless Wi-Fi extension device 100 of the present invention, referring to FIG. 6, it can be seen that the Wi-Fi receiving device receives approximately 3 V / m of electromagnetic waves.

The following describes the results of evaluating transmittance to electromagnetic waves of the non-powered Wi-Fi extension device according to an embodiment of the present invention.

In this evaluation, electromagnetic waves were used in the frequency band of 1.4 to 3.4 GHz.

Referring to FIG. 7, the non-power Wi-Fi extension device 100 may be confirmed to have the highest transmittance in the 2.4 GHz frequency band of the Wi-Fi signal.

In addition, referring to FIG. 8, the non-powered Wi-Fi extension device 100 shows a transmittance of about 1.8 with respect to electromagnetic waves in the frequency band of 2.4 GHz. Here, the transmittance of electromagnetic waves transmitted from the Wi-Fi transmitter is generally set to 1.

In addition, referring to FIG. 9, the non-power Wi-Fi extension device 100 has an S-parameter of 0.09 for electromagnetic waves in a frequency band of 2.4 GHz. When the non-powered Wi-Fi extension device 100 is not used, the S-parameter of the Wi-Fi signal is as low as 0.05. Therefore, it can be seen that a higher electromagnetic wave is reached when the non-power Wi-Fi extension device 100 is used.

The present invention has been described in detail with reference to preferred embodiments shown in the drawings. These embodiments are not intended to limit the invention, but merely illustrative, and should be considered from an explanatory point of view rather than a limiting point of view. The true technical protection scope of the present invention should be defined by the technical spirit of the appended claims rather than the foregoing description.

100: powerless wifi extension
110: case
111: case body 115: case cover
120: first pattern module
121: first support plate 125: first conductive pattern
130: second pattern module
131: second support plate 135: second conductive pattern

Claims (9)

A first pattern module including a first support plate and a plurality of first conductive patterns disposed on both sides of the first support plate, and
And a second pattern module including a second support plate and a plurality of second conductive patterns disposed on both sides of the second support plate,
The second support plate and the second conductive pattern are formed in the same way as the first support plate and the first conductive pattern,
The first pattern module and the second pattern module are positioned to be spaced apart from each other so that the second conductive pattern is located at a position facing the first conductive pattern,
A non-powered Wi-Fi extension device characterized in that it transmits the transmitted Wi-Fi signal. According to claim 1,
Further comprising a case having an area corresponding to the area of the first pattern module and having a first surface and a second surface facing each other,
The first pattern module is located on the inner surface of the first surface of the case, the second pattern module is a power-less Wi-Fi expansion device, characterized in that located on the inner surface of the second surface of the case. According to claim 2,
The case includes a case body having a first surface and forming a box shape opened in a direction of the second surface, and a case cover coupled to the second surface,
The case cover is a non-powered Wi-Fi extension device, characterized in that by fixing and supporting the second pattern module on a surface facing the case body. According to claim 2,
The case is a polymethacrylimide foam, Teflon, polypropylene or polyvinyl chloride, characterized in that formed of a non-powered Wi-Fi expansion device. According to claim 1,
The first support plate and the second support plate are formed to a thickness of 0.4 ~ 1.2mm,
Powerless Wi-Fi extension device characterized in that it is formed of polyimide, polystyrene, polyethylene, PDMS, or Teflon. According to claim 1,
The first conductive pattern and the second conductive pattern are formed to a thickness of 20㎛ ~ 60㎛,
Powerless Wi-Fi expansion device, characterized in that formed of a material of copper, silver, aluminum, gold, platinum or nickel. According to claim 1,
The first conductive pattern and the second conductive pattern
Powerless WiFi expansion device, characterized in that formed in a circular ring shape, a square ring shape, a pentagonal ring shape, a hexagonal ring shape or an octagonal ring shape. According to claim 1,
The first conductive pattern and the second conductive pattern is a non-power Wi-Fi extension device, characterized in that formed in a circular ring shape having an inner diameter of 20 to 30 mm and an outer diameter of 40 to 60 mm. According to claim 1,
The first conductive patterns are spaced apart from each other such that the distance between the centers of the first patterns adjacent to each other is 1.1 to 1.5 times the outer diameter of the first conductive pattern.

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