Receiver for wireless communication and wireless communication system

Abstract

The invention provides a receiver for wireless communication and a wireless communication system. The receiver comprises a shell and a signal receiving module arranged in the shell. The signal receiving module comprises a first positioning piece, a second positioning piece and a dipole antenna arranged between the first positioning piece and the second positioning piece. The first positioning member has a first length. The second positioning member has a second length. The dipole antenna has a third length. The first length is less than the third length. The third length is less than the second length.

Description

Technical Field

[0001] The present invention relates to an electronic device, and in particular to a receiver for wireless communication and a wireless communication system. Background Art

[0002] Wireless communication is a technology that transmits signals between multiple points without the need for physical cables (such as wires or optical fibers). Without the constraints of physical connections, the ease of use and application of electronic devices have been greatly improved. Consequently, many electronic devices utilizing wireless communication technology are now available on the market, such as wireless mice, wireless headphones, wireless keyboards, and cordless phones. However, the signals emitted by these electronic devices are prone to mutual interference, which can affect signal transmission performance and potentially compromise the reliability and responsiveness of the electronic devices.

[0003] Therefore, it is necessary to design a new type of receiver for wireless communication and a wireless communication system to overcome the above-mentioned defects. Summary of the Invention

[0004] An object of the present invention is to provide a receiver for wireless communication and a wireless communication system, which can reduce signal interference of wireless communication by arranging components of different sizes.

[0005] To achieve the above-mentioned objectives, the present invention provides a receiver for wireless communication, comprising: a housing; and a signal receiving module, disposed in the housing and comprising: a first positioning member; a second positioning member; and a dipole antenna, disposed between the first positioning member and the second positioning member, wherein the first positioning member has a first length, the second positioning member has a second length, and the dipole antenna has a third length, the first length is smaller than the third length, and the third length is smaller than the second length.

[0006] Preferably, the first length, the second length, and the third length are greater than 0.3 times the free space wavelength and less than 0.6 times the free space wavelength.

[0007] Preferably, the third length of the dipole antenna is along the first direction, the first positioning member, the second positioning member and the dipole antenna are arranged along the second direction, and the first direction is perpendicular to the second direction; the first positioning member has a first width in the second direction, and the second positioning member has a second width in the second direction, and the first width and the second width are respectively greater than or equal to 0.01 times the free space wavelength.

[0008] Preferably, in the second direction, the first positioning member is spaced from the dipole antenna by a first distance, the second positioning member is spaced from the dipole antenna by a second distance, and the first distance is less than or equal to the second distance.

[0009] Preferably, the first distance is 0.03 to 0.3 times the free space wavelength, and the second distance is 0.1 to 0.3 times the free space wavelength.

[0010] Preferably, the first positioning member has a first thickness in a third direction, the second positioning member has a second thickness in the third direction, the first thickness and the second thickness are respectively greater than or equal to 0.01 times the free space wavelength, and the first direction, the second direction and the third direction are perpendicular to each other.

[0011] Preferably, the dipole antenna includes a first arm, a second arm, and a dielectric layer. The first arm and the second arm are disposed on opposite sides of the dielectric layer in a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0012] Preferably, it further comprises: a charging module, which is disposed in the housing and comprises a charging terminal; wherein the housing comprises an opening, and the opening exposes at least a portion of the charging terminal.

[0013] Preferably, the charging module includes a circuit board, which is arranged between the charging terminal and the second positioning member, and the second positioning member includes a groove, and at least a portion of the circuit board is arranged in the groove of the second positioning member.

[0014] Preferably, the charging module includes a magnetic element surrounding the charging terminal.

[0015] The present invention also provides a wireless communication system, comprising: a wireless device comprising a magnetic limiter; and a receiver for receiving a control signal generated by the wireless device, the receiver comprising a shell, a signal receiving module arranged in the shell, and a magnetic element arranged in the shell, wherein the signal receiving module comprises: a first positioning member; a second positioning member; and a dipole antenna arranged between the first positioning member and the second positioning member; wherein the first positioning member has a first length, the second positioning member has a second length, the dipole antenna has a third length, the first length is less than the third length, the third length is less than the second length, and the magnetic attraction between the magnetic element of the receiver and the magnetic limiter of the wireless device is less than the total weight of the receiver.

[0016] Compared with the prior art, embodiments of the present invention provide a wireless communication receiver and a wireless communication system. The wireless communication system includes a wireless device and a receiver. The wireless device includes a magnetic limiter. The receiver is used to receive a control signal generated by the wireless device. The receiver includes a housing, a signal receiving module disposed in the housing, and a magnetic element disposed in the housing. The signal receiving module includes a first positioning member, a second positioning member, and a dipole antenna disposed between the first positioning member and the second positioning member. The first positioning member has a first length. The second positioning member has a second length. The dipole antenna has a third length. The first length is less than the third length. The third length is less than the second length. The magnetic attraction between the magnetic element of the receiver and the magnetic limiter of the wireless device is less than the total weight of the receiver. In this way, signal interference in wireless communication is reduced by arranging components of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram illustrating a wireless communication system according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram illustrating a signal receiving module and a charging module according to an embodiment of the present invention;

[0019] Figure 3 is a schematic diagram illustrating a dipole antenna according to an embodiment of the present invention;

[0020] Figures 4A to 4C Schematic diagrams illustrating a signal receiving module according to various embodiments of the present invention;

[0021] Figure 5 illustrative of two-dimensional radiation patterns of a receiver according to an embodiment of the present invention and a receiver according to a comparative example;

[0022] Figure 6 is a schematic diagram illustrating a wireless communication system according to an embodiment of the present invention; and

[0023] Figure 7 FIG2 is a schematic diagram illustrating a wireless communication system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to provide a further understanding of the purpose, structure, features and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0025] Please refer to Figure 1 . Figure 1The figure shows a schematic diagram of a wireless communication system S100 according to an embodiment of the present invention. The wireless communication system S100 includes a receiver 1 and a wireless device 5. The receiver 1 can be used for wireless communication. The receiver 1 includes a housing 10, a signal receiving module 20, a charging module 30, a connecting cable 40 and a plug-in portion 50. The housing 10 can be made of plastic, ceramic, or other non-metallic materials. The housing 10 can have a disc shape, but the present invention is not limited thereto. The housing 10 can have any shape such as a rectangle or an ellipse. The signal receiving module 20 and the charging module 30 are disposed in the housing 10. The housing 10 can include an opening 10A on the upper surface 10U and an opening 10B on the side wall 10S. The opening 10A can expose a portion of the charging module 30, and the opening 10B can expose another portion of the charging module 30. In other embodiments, the opening 10B can be located on the upper surface or the lower surface of the housing. The connecting cable 40 is connected to the plug-in portion 50. The plug portion 50 can pass through the opening 10B to connect to the charging module 30 in the housing 10 . In one embodiment, the receiver 1 may not include the plug portion 50 , and the connecting line 40 can be directly connected to the charging module 30 in the housing 10 .

[0026] In some embodiments, the opposite ends of the connection cable 40 of the receiver 1 can be connected to the plug portion 50 and the computer device 6, respectively. Power from the computer device 6 can be provided to the signal receiving module 20 and the charging module 30 within the housing 10 via the connection cable 40 and the plug portion 50 of the receiver 1. In some embodiments, the receiver 1 can be used to enable wireless communication between the wireless device 5 and the computer device 6. For example, the signal receiving module 20 of the receiver 1 can receive a control signal S generated by the wireless device 5 and transmit the control signal S generated by the wireless device 5 to the computer device 6 via the connection cable 40 and the plug portion 50, thereby allowing the wireless device 5 to operate the computer device 6 via the control signal S. Figure 1 The wireless device 5 is shown as a wireless mouse, but the present invention is not limited thereto. The wireless device 5 may include but is not limited to a wireless mouse, wireless headset, wireless keyboard, joystick, remote control, game controller, etc. The computer device 6 may include a desktop computer, a notebook computer, etc.

[0027] Please also refer to Figures 1 to 3 . Figure 2 FIG. 1 is a schematic diagram illustrating a signal receiving module 20 and a charging module 30 according to an embodiment of the present invention. Figure 3 FIG. 2 is a schematic diagram illustrating a dipole antenna 203 according to an embodiment of the present invention.

[0028] The charging module 30 can be mounted on the signal receiving module 20. The charging module 30 can be positioned between the signal receiving module 20 and the upper surface 10U of the housing 10. The charging module 30 includes a circuit board 301, charging terminals 302, a magnetic element 303, and a connection port 304. The circuit board 301 can be, for example, a printed circuit board. The charging terminals 302 are mounted on and electrically connected to the circuit board 301. Figure 1 and Figure 2 Two charging terminals 302 are shown, but the present invention is not limited thereto, and the charging module 30 may have more or fewer charging terminals 302. Figure 1 and Figure 2 The charging terminal 302 is illustrated as a columnar structure, but the present invention is not limited thereto, and the charging terminal 302 may have any shape. The magnetic element 303 is disposed on the circuit board 301. The magnetic element 303 surrounds the charging terminal 302. The magnetic element 303 may have a ring shape. The connection port 304 is fixed to the circuit board 301. The opening 10B of the shell 10 may expose the connection port 304. The plug-in portion 50 may be detachably plugged into the connection port 304 through the opening 10B of the shell 10. The plug-in portion 50 may match the connection port 304. In one embodiment, the plug-in portion 50 and the connection port 304 are respectively a plug and a socket that comply with the universal serial bus (USB) standard.

[0029] The opening 10A of the housing 10 exposes at least a portion of the charging terminal 302 and at least a portion of the magnetic element 303. The charging terminal 302 may protrude from the upper surface 10U of the housing 10. The magnetic element 303 may protrude from the upper surface 10U of the housing 10, the upper surface of the magnetic element 303 may be coplanar with the upper surface 10U of the housing 10, or the upper surface of the magnetic element 303 may be close to the upper surface of the housing 10 and located on the inner side of the housing 10.

[0030] The signal receiving module 20 includes a first positioning member 201, a second positioning member 202, and a dipole antenna 203. The dipole antenna 203 is disposed between the first positioning member 201 and the second positioning member 202. The first positioning member 201 and the second positioning member 202 extend along a first direction D1. The first positioning member 201, the second positioning member 202, and the dipole antenna 203 are arranged along a second direction D2. The circuit board 301 of the charging module 30 is disposed between the charging terminal 302 and the second positioning member 202 in a third direction D3. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other. The second positioning member 202 may include a recess 202R. At least a portion of the circuit board 301 may be disposed in the recess 202R of the second positioning member 202. This configuration can reduce the thickness and / or volume of the receiver 1 in the third direction D3, thereby making the receiver 1 thinner and lighter.

[0031] The dipole antenna 203 includes a first arm 2031, a first connecting portion 2032, a second arm 2033, a second connecting portion 2034, and a dielectric layer 2035. The first arm 2031 is connected to the first connecting portion 2032. The second arm 2033 is connected to the second connecting portion 2034. The first arm 2031, the first connecting portion 2032, the second arm 2033, and the second connecting portion 2034 are all made of a conductive material. The first connecting portion 2032 has a first feeding point. The second connecting portion 2034 has a second feeding point. The first feeding point can be coupled to one of the signal output terminal and the ground of a signal receiving element or a signal transceiver element, and the second feeding point can be coupled to the other of the signal output terminal and the ground of the signal receiving element or the signal transceiver element. The signal receiving element can be, for example, a radio wave receiving element. The signal transceiver element can be, for example, a radio wave transceiver element.

[0032] The first arm portion 2031 and the first connecting portion 2032 may be formed on the same plane. The second arm portion 2033 and the second connecting portion 2034 may be formed on the same plane. The plane where the first arm portion 2031 and the first connecting portion 2032 are located may be different from the plane where the second arm portion 2033 and the second connecting portion 2034 are located. For example, Figure 3 As shown, the first arm 2031 and the second arm 2033 are disposed on opposite sides of the dielectric layer 2035 in a third direction D3. That is, the first arm 2031 and the first connecting portion 2032 may be located above the dielectric layer 2035. The second arm 2033 and the second connecting portion 2034 may be located below the dielectric layer 2035. In the third direction D3, a portion of the first arm 2031 may not overlap a portion of the second arm 2033. In one embodiment, the dipole antenna 203 may be formed on a multilayer printed circuit board. The first arm 2031, the second arm 2033, and the dielectric layer 2035 may be formed on different layers of the printed circuit board. The first arm 2031, the first connecting portion 2032, the second arm 2033, and the second connecting portion 2034 may each be implemented as a trace on the printed circuit board. Forming the dipole antenna 203 on a multilayer printed circuit board minimizes the antenna size.

[0033] In other embodiments, the first arm portion 2031 , the first connecting portion 2032 , the second arm portion 2033 , and the second connecting portion 2034 may be formed on the same plane, and the first arm portion 2031 and the second arm portion 2033 may be separated from each other.

[0034] The first positioning member 201 and the second positioning member 202 are made of a conductive material. The first positioning member 201, the second positioning member 202, and the dipole antenna 203 form a Yagi-Uda antenna to receive the control signal S generated by the wireless device 5. The first positioning member 201 serves as the director of the Yagi antenna, the second positioning member 202 serves as the reflector of the Yagi antenna, and the dipole antenna 203 serves as the driven element of the Yagi antenna. In other embodiments, the signal receiving module 20 may include multiple first positioning members 201. Multiple first positioning members 201, second positioning members 202, and dipole antennas 203 form a Yagi antenna. That is, the Yagi antenna may include one or more directors. Multiple directors can increase the directivity of the radiation pattern.

[0035] In one embodiment, the Yagi antenna formed by the first positioning element 201 , the second positioning element 202 and the dipole antenna 203 can transmit and receive signals in multiple frequency bands, such as the 2.44 GHz band, the 5 GHz band, and the 6 GHz band.

[0036] The first positioning element 201 has a first length L1, the second positioning element 202 has a second length L2, and the dipole antenna 203 has a third length L3. The first length L1 may be less than the third length L3. The third length L3 may be less than the second length L2. The first length L1, the second length L2, and the third length L3 may be greater than or equal to 0.3 times the free-space wavelength and less than or equal to 0.6 times the free-space wavelength. The free-space wavelength can be obtained by dividing the speed of light by the operating frequency. For example, when the receiver 1 receives signals in the 2.44 GHz frequency band, the free-space wavelength is approximately 123 mm. The first length L1 of the first positioning element 201 may be 0.3 to 0.45 times the free-space wavelength, such as 0.32, 0.325, or 0.33 times. The second length L2 of the second positioning element 202 may be 0.4 to 0.6 times the free-space wavelength, such as 0.44, 0.45, or 0.47 times. The third length L3 of the dipole antenna 203 can be 0.35 to 0.5 times the free-space wavelength, for example, 0.39 times. In one embodiment, when the receiver 1 receives signals via the 2.44 GHz frequency band, the first length L1 of the first positioning member 201 is approximately 40 mm, the second length L2 of the second positioning member 202 is approximately 55 mm, and the third length L3 of the dipole antenna 203 is approximately 48 mm.

[0037] The first length, the second length and the third length can be understood as the distance between the two end points of the element, which can be a straight line distance or a non-straight line distance. Figure 2In the illustrated embodiment, the first positioning member 201 and the second positioning member 202 extend linearly or substantially linearly along the first direction D1, so that the first length L1 of the first positioning member 201 and the second length L2 of the second positioning member 202 can be respectively defined as the linear distance between the two end points in the first direction D1, that is, the first length L1 of the first positioning member 201 and the second length L2 of the second positioning member 202 are along the first direction D1; the third length L3 of the dipole antenna 203 can be defined as the linear distance between the two end points in the first direction D1, that is, the third length L3 of the dipole antenna 203 is along the first direction D1. In other embodiments, the first positioning member 201 and / or the second positioning member 202 can extend non-linearly along the first direction D1, for example Figures 4A to 4C The wavy, jagged or irregular shape shown in FIG. 2 can define the first length L1 of the first positioning member 201 and / or the second length L2 of the second positioning member 202 as the non-linear distance between the two end points in the first direction D1, for example, as Figures 4A to 4C The path length indicated by the double arrows. The non-linear extension of the first positioning member 201 and / or the second positioning member 202 along the first direction D1 can reduce the size of the signal receiving module 20 in the first direction D1, so that the size and appearance of the receiver 1 can be more varied. In other embodiments, the first arm 2031 and the second arm 2033 of the dipole antenna 203 can extend non-linearly along the first direction D1, for example, Figures 4A to 4C The wavy, jagged or irregular shape shown, thus the third length L3 of the dipole antenna 203 can be defined as the actual length of the first arm 2031 along the shape (eg Figures 4A to 4C The actual length of the second arm 2033 along the shape (eg Figures 4A to 4C The sum of the path lengths shown by the double arrows.

[0038] Please refer again Figure 2 . In the second direction D2, the first positioning member 201 has a first width W1, and the second positioning member 202 has a second width W2. The first width W1 may be greater than, less than, or equal to the second width W2. The first width W1 of the first positioning member 201 may be greater than or equal to 0.01 times (i.e., at least 0.01 times) the free space wavelength. The first width W1 of the first positioning member 201 may be 0.01 times to 0.15 times, for example, 0.016 times, the free space wavelength. The second width W2 of the second positioning member 202 may be greater than or equal to 0.01 times (i.e., at least 0.01 times) the free space wavelength. The second width W2 of the second positioning member 202 may be 0.01 times to 0.15 times, for example, 0.089 times, the free space wavelength. In one embodiment, when the receiver 1 receives a signal via the 2.44 GHz frequency band, the first width W1 of the first positioning member 201 is approximately 2 mm, and the second width W2 of the second positioning member 202 is approximately 11 mm.

[0039] Please refer again Figure 2 . In the third direction D3, the first positioning member 201 has a first thickness H1, and the second positioning member 202 has a second thickness H2. The first thickness H1 may be greater than, less than, or equal to the second thickness H2. In this embodiment, the first thickness H1 of the first positioning member 201 is the maximum thickness of the first positioning member 201 in the third direction D3. The first thickness H1 of the first positioning member 201 may be greater than or equal to 0.01 times (i.e., at least 0.01 times) of the free space wavelength. The first thickness H1 of the first positioning member 201 may be 0.01 times to 0.15 times, for example, 0.022 times, of the free space wavelength. The second thickness H2 of the second positioning member 202 may be greater than or equal to 0.01 times (i.e., at least 0.01 times) of the free space wavelength. The second thickness H2 of the second positioning member 202 may be 0.01 times to 0.15 times, for example, 0.054 times, of the free space wavelength. In one embodiment, when the receiver 1 receives signals via the 2.44 GHz frequency band, the first thickness H1 of the first positioning element 201 is approximately 2.7 mm, and the second thickness H2 of the second positioning element 202 is approximately 6.7 mm.

[0040] Please refer again Figure 2 . In the second direction D2, the first positioning member 201 and the dipole antenna 203 are separated by a first distance G1, and the second positioning member 202 and the dipole antenna 203 are separated by a second distance G2. The first distance G1 may be less than or equal to the second distance G2. The first distance G1 may be 0.03 times to 0.3 times or 0.05 times to 0.2 times, for example, 0.06 times, of the free space wavelength. The second distance G2 may be 0.1 times to 0.3 times or 0.15 times to 0.25 times, for example, 0.19 times or 0.20 times, of the free space wavelength. In one embodiment, when the receiver 1 receives a signal via the 2.44 GHz frequency band, the first distance G1 is approximately 7.8 mm and the second distance G2 is approximately 23.7 mm.

[0041] The first positioning member 201 may have Figure 2 The rectangle shown, or may have Figures 4A to 4C The first positioning member 201 may have any shape (such as a spiral shape), as long as the length, width and thickness of the first positioning member 201 meet the above definitions. The second positioning member 202 may have a shape such as Figure 2 The rectangle shown includes the groove 202R, or may have a rectangle without the groove 202R, or may have a rectangle as shown. Figures 4A to 4CThe sawtooth or wavy shape shown may or may not include grooves; however, the present invention is not limited thereto, and the second positioning member 202 may have any shape (such as a spiral shape, etc.), as long as the length, width and thickness of the second positioning member 202 meet the above definitions. The shapes and sizes of the first positioning member 201, the second positioning member 202 and the dipole antenna 203 can be arbitrarily matched, and the present invention is not limited thereto. For example, Figure 4A The first positioning member 201 shown in the figure can be used with Figure 4C The second positioning member 202 of the pattern shown in FIG. Figures 2 to 3 The dipole antenna 203 of the embodiment shown in FIG. 1 is used to form a signal receiving module. Figure 2 The first positioning member 201 of the embodiment shown can be used with Figure 4A The second positioning member 202 of the embodiment shown in FIG. Figure 4C The dipole antenna 203 (ie, the first arm 2031 and the second arm 2033 of the dipole antenna 203) has the following features: Figure 4C ) to form a signal receiving module.

[0042] The Yagi antenna composed of the first positioning member 201 , the second positioning member 202 and the dipole antenna 203 has good signal receiving capability and anti-interference capability within the above-mentioned length, width, thickness and distance ranges.

[0043] The Yagi antenna, which is composed of the first positioning member 201, the second positioning member 202, and the dipole antenna 203, has radiation directivity. The radiation electric field in the area in front of the first positioning member 201 is stronger, which means that signals from areas outside the front area are more difficult to be received by the antenna, thereby improving the signal interference problem. In this embodiment, the second positioning member 202 and the dipole antenna 203 can be defined as being arranged on the back side of the first positioning member 201, with the front side of the first positioning member 201 relative to the back side of the first positioning member 201. Figure 5 As shown, the two-dimensional radiation pattern RP1 (represented by a solid line) of the receiver 1 shows that the radiated electric field is roughly concentrated in two quadrants and points to the front side where the wireless device 5 is located, indicating that the receiver 1 has a strong reception capability for the control signal S from the wireless device 5; moreover, the receiver 1 is less likely to receive signals from the rear side (for example, from 90 degrees counterclockwise to -120 degrees), and the interference signals received by the receiver 1 (i.e., signals not from the wireless device 5) are reduced, which can effectively improve the signal interference problem.

[0044] In addition, when the wireless device 5 is placed in front of the first positioning member 201 and the distance between the wireless device 5 and the receiver 1 is about 20 cm, the horizontal movable angle of the wireless device 5 relative to the receiver 1 is about 100 degrees. Figure 5 The two-dimensional radiation pattern RP1 shown shows that the radiation electric field is strong at least between -60 degrees counterclockwise and 60 degrees. This angle range can cover the horizontal activity angle of the wireless device 5 relative to the receiver 1. Therefore, the wireless device 5 can obtain good signal transmission performance when used in front of the first positioning member 201.

[0045] In a comparative example, the signal receiving module 20 of the receiver includes a monopole antenna instead of a Yagi antenna, and uses the monopole antenna to receive the control signal generated by the wireless device. The two-dimensional radiation pattern RP2 (indicated by the dotted line) of the receiver of the comparative example is as follows: Figure 5 As shown in the figure, the two-dimensional radiation pattern RP2 of the comparative example receiver shows that the radiated electric field is roughly evenly distributed across the four quadrants. This means that in addition to receiving the control signal from the wireless device 5, the comparative example receiver is also susceptible to receiving signals from other directions (e.g., from the -135-degree or 135-degree directions). Signals from other directions may interfere with the control signal generated by the wireless device 5, leading to signal interference. Moreover, compared to the two-dimensional radiation pattern RP1, the two-dimensional radiation pattern RP2 of the comparative example receiver shows that the radiated electric field is weaker in front of the wireless device 5, indicating that the comparative example receiver's ability to receive the control signal S from the wireless device 5 is worse than that of the receiver 1 of the embodiment.

[0046] Please also refer to Figure 6 and Figure 7 . Figure 6 and Figure 7 FIG. 1 is a schematic diagram illustrating a wireless communication system S100 according to an embodiment of the present invention. Figure 6 and Figure 7 In the embodiment, the wireless device 5 is in the charging position. The charging terminal 302 can be used to charge the wireless device 5. In this embodiment, the wireless device 5 may include a charging port provided on the lower surface and matching the charging terminal 302. When the wireless device 5 is placed on the upper surface 10U of the housing 10 of the receiver 1 and the charging port is connected to the charging terminal 302, the wireless device 5 can receive power from the computer device 6 through the charging terminal of the receiver 1, that is, the wireless device 5 is in the charging position. The "charging position" described in this specification is not limited to Figure 6 and Figure 7 As shown in the figure, the position of the wireless device 5's charging port and the position of the charging terminal 302 can be adjusted arbitrarily, so that the "charging position" includes all positions where the wireless device 5 can receive power from the computer device 6. In other embodiments, the opposite ends of the connection cable 40 of the receiver 1 can be connected to the plug portion 50 and a power source other than the computer device 6, respectively. When the wireless device 5 is in the charging position, it can receive power from the other power source through the receiver 1.

[0047] The magnetic element 303 can facilitate the position alignment of the wireless device 5 and the receiver 1 and the attachment of the wireless device 5 to the receiver 1. The wireless device 5 may include a magnetic stopper 501 that matches the magnetic element 303. When the wireless device 5 approaches the receiver 1, the magnetic element 303 and the magnetic stopper 501 attract each other to guide the wireless device 5 to the charging position, ensuring that the position of the wireless device 5 is aligned with the position of the receiver 1 to improve the efficiency of power transfer. In addition, the magnetic attraction between the magnetic element 303 and the magnetic stopper 501 helps to hold the wireless device 5 in the charging position, preventing the wireless device from slipping from the charging position and affecting the charging efficiency. In this embodiment, the magnetic stopper 501 of the wireless device 5 can be set on the lower surface of the wireless device 5. The position of the magnetic stopper 501 of the wireless device 5 is not limited to Figure 7 As shown in the embodiment, in other embodiments, the magnetic stopper 501 may also surround or be adjacent to the magnetic element 303 of the receiver 1 .

[0048] The weight of the first positioning member 201 can be less than that of the second positioning member 202. In one embodiment, the total weight of the receiver 1 is 50g, and the combined weight of the first positioning member 201 and the second positioning member 202 is 24g. The weight distribution of the first positioning member 201 and the second positioning member 202 increases the stability of the receiver 1 during use, preventing it from shifting during use of the wireless device 5 and affecting signal transmission performance.

[0049] In one embodiment, the magnetic attraction force between the magnetic element 303 of the receiver 1 and the magnetic stopper of the wireless device 5 is less than the total weight of the receiver 1, so that the wireless device 5 can be easily separated from the receiver 1 (for example, when the wireless device 5 leaves the charging position) without moving the receiver 1 together.

[0050] In summary, the present invention provides a receiver and wireless communication system for wireless communication. The receiver includes a signal receiving module disposed in a housing, and the signal receiving module includes a first positioning member, a second positioning member, and a dipole antenna. The first positioning member, the second positioning member, and the dipole antenna form a Yagi antenna to receive signals generated by a wireless device. Compared to receivers using monopole antennas or omnidirectional antennas, the receiver of the present invention using a Yagi antenna has stronger resistance to signal interference and a stronger ability to receive signals generated by wireless devices, thereby improving the control reliability and responsiveness of the wireless device. In addition, the first and second positioning members have a counterweight function, and their weight configuration can improve the receiver's operational stability and signal transmission performance, making it more convenient to use. Furthermore, the receiver of the present invention can serve as a charger for wireless devices, reducing the frequency with which users need to replace batteries in wireless devices and reducing the number of charging cables, making it more convenient to use.

[0051] Although the present invention is described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as limiting the present invention. For the purpose of clearly describing the required components, the proportions in the schematic drawings do not represent the proportional relationships of the actual components.

[0052] The present invention has been described with reference to the above embodiments. However, the above embodiments are merely exemplary embodiments of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and improvements that do not depart from the spirit and scope of the present invention are intended to be protected by the present invention.

Claims

1. A receiver for wireless communication, characterized in that: include: case; as well as The signal receiving module is disposed in the housing and includes: a first positioning member; a second positioning member; and A dipole antenna is disposed between the first positioning member and the second positioning member; The first positioning member has a first length, the second positioning member has a second length, the dipole antenna has a third length, the first length is smaller than the third length, and the third length is smaller than the second length.

2. The receiver according to claim 1, wherein The first length, the second length, and the third length are greater than 0.3 times the free space wavelength and less than 0.6 times the free space wavelength.

3. The receiver according to claim 1, wherein The third length of the dipole antenna is along a first direction, the first positioning member, the second positioning member, and the dipole antenna are arranged along a second direction, and the first direction is perpendicular to the second direction; The first positioning element has a first width in the second direction, the second positioning element has a second width in the second direction, and the first width and the second width are respectively greater than or equal to 0.01 times of a free space wavelength.

4. The receiver according to claim 3, wherein In the second direction, the first positioning member is spaced from the dipole antenna by a first distance, and the second positioning member is spaced from the dipole antenna by a second distance. The first distance is less than or equal to the second distance.

5. The receiver according to claim 4, wherein The first distance is 0.03 to 0.3 times the free space wavelength, and the second distance is 0.1 to 0.3 times the free space wavelength.

6. The receiver according to claim 3, wherein The first positioning member has a first thickness in a third direction, the second positioning member has a second thickness in the third direction, the first thickness and the second thickness are respectively greater than or equal to 0.01 times the free space wavelength, and the first direction, the second direction and the third direction are perpendicular to each other.

7. The receiver according to claim 3, wherein The dipole antenna includes a first arm, a second arm and a dielectric layer. The first arm and the second arm are disposed on opposite sides of the dielectric layer in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

8. The receiver according to claim 1, wherein Also includes: a charging module, disposed in the housing and comprising a charging terminal; The housing includes an opening, which exposes at least a portion of the charging terminal.

9. The receiver according to claim 8, wherein The charging module includes a circuit board, which is arranged between the charging terminal and the second positioning member. The second positioning member includes a groove, and at least a portion of the circuit board is arranged in the groove of the second positioning member.

10. The receiver according to claim 8, wherein The charging module includes a magnetic element surrounding the charging terminal.

11. A wireless communication system, characterized in that: Include: a wireless device comprising a magnetic stop; and A receiver for receiving a control signal generated by the wireless device, the receiver comprising a housing, a signal receiving module disposed in the housing, and a magnetic element disposed in the housing, wherein the signal receiving module comprises: a first positioning member; a second positioning member; and A dipole antenna is disposed between the first positioning member and the second positioning member; The first positioning member has a first length, the second positioning member has a second length, the dipole antenna has a third length, the first length is smaller than the third length, the third length is smaller than the second length, and the magnetic attraction between the magnetic element of the receiver and the magnetic limiting member of the wireless device is smaller than the total weight of the receiver.

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