Recording and broadcasting machine

Abstract

The invention discloses a recording and playing machine, which comprises a box body, an antenna module and a reflecting piece, and is characterized in that the box body is provided with an accommodating cavity; the antenna module is located in the containing cavity and comprises at least one antenna assembly, the antenna assembly comprises an antenna and a reflecting part, the reflecting part and the inner wall face of the box body define a reflecting cavity, the antenna is located in the reflecting cavity, the reflecting part is used for reflecting electromagnetic wave signals, and the part, defining the reflecting cavity, in the side wall of the box body is made of nonmetal or made of metal. An opening for an electromagnetic wave signal to pass through is formed in the part, defining the reflection cavity, in the side wall of the box body; wherein the radiation azimuth angle of the antenna module is 360 degrees. The antenna gain of the recording and broadcasting machine can be enhanced, so that the long-distance information transmission capability of the recording and broadcasting machine can be improved.

Description

Technical Field

[0001] This application relates to the field of recording and broadcasting equipment technology, and more particularly to a recording and broadcasting machine. Background Technology

[0002] In related technologies, recording and broadcasting machines typically use an external rod antenna as a communication antenna to transmit information with other devices, such as receiving and sending teachers' voice information, writing information on whiteboards, and video information from classroom cameras.

[0003] However, rod antennas have lower antenna gain (antenna gain is a measure of an antenna's ability to transmit and receive signals in a specific direction), resulting in poor long-distance information transmission capability of the recording and broadcasting equipment. Summary of the Invention

[0004] This application provides a recording and broadcasting machine that can enhance the antenna gain of the recording and broadcasting machine, thereby improving the recording and broadcasting machine's ability to transmit information over long distances.

[0005] Specifically, a recording and broadcasting machine includes a housing with a receiving cavity; an antenna module located within the receiving cavity, the antenna module including at least one set of antenna components, each antenna component including an antenna and a reflector, the reflector and the inner wall of the housing forming a reflecting cavity, the antenna located within the reflecting cavity, the reflector being used to reflect electromagnetic wave signals, the portion of the side wall of the housing surrounding the reflecting cavity being made of non-metallic material, or the portion of the side wall of the housing surrounding the reflecting cavity being provided with an opening for the electromagnetic wave signals to pass through; wherein, the radiation azimuth angle of the antenna module is 360 degrees.

[0006] In some embodiments of this application, the housing includes a bottom plate, a top plate, and peripheral side plates. The bottom plate and the top plate are disposed opposite to each other, and the peripheral side plates are located between the bottom plate and the top plate. The bottom plate, the top plate, and the peripheral side plates enclose the receiving cavity. The reflector is disposed opposite to and connected to the peripheral side plates. The reflector, the top plate, the bottom plate, and the peripheral side plates enclose the reflecting cavity. The portion of the side wall of the peripheral side plate that encloses the reflecting cavity is made of non-metallic material, or the portion of the side wall of the peripheral side plate that encloses the reflecting cavity has the opening. Other electronic devices that work with the recording and broadcasting machine can be placed to the side of the recording and broadcasting machine, providing relatively large placement space for the electronic devices.

[0007] In some embodiments of this application, the antenna module includes multiple sets of antenna components, and the multiple sets of antenna components are arranged at intervals along the periphery of the peripheral plate, and the sum of the radiation azimuth angles of all the antenna components is greater than or equal to 360 degrees. This can enhance the antenna gain of the recording and broadcasting machine in multiple directions.

[0008] In some embodiments of this application, the radiation regions of two adjacent antenna assemblies overlap. This prevents antenna gain enhancement blind spots.

[0009] In some embodiments of this application, the housing is generally polyhedral in shape, and the reflector is disposed opposite to the corner portions of the housing, with the corner portions opposite to the reflector forming the reflective cavity. This increases the utilization rate of the cavity within the housing and allows the antenna to be positioned away from electronic components in the central area, preventing interference between the antenna and other electronic components.

[0010] In some embodiments of this application, the antenna module includes multiple sets of the reflective components, and one set of the reflective components is disposed opposite to a corner portion of the housing. This ensures that the recording device has strong antenna gain in all directions around its perimeter.

[0011] In some embodiments of this application, the base plate includes a first portion forming the reflective cavity, and the top plate includes a second portion forming the reflective cavity, both the first and second portions being made of metal. This ensures that both the first and second portions have strong reflective capabilities for electromagnetic wave signals, preventing electromagnetic wave signals in the reflective cavity from entering or exiting the reflective cavity through the first and second portions.

[0012] In some embodiments of this application, the reflector includes a first reflector and a second reflector, the first reflector and the second reflector being connected and arranged at an angle, and both the first reflector and the second reflector being connected to the peripheral side plate. The first reflector and the second reflector, together with the top plate, the bottom plate, and the peripheral side plate, form the reflecting cavity; or, the projection of the reflector onto the bottom plate is an inwardly concave arc shape moving away from the reflecting cavity, and both the first end and the second end of the reflector are connected to the peripheral side plate. This concentrates the radiation direction of the antenna within the included angle range defined by the reflector, thereby enhancing the antenna gain.

[0013] In some embodiments of this application, at least one of the reflector, the base plate, and the top plate is provided with the antenna. This can shorten the time it takes for the electromagnetic wave signal to be reflected from the reflected structure to the first region, so that the electromagnetic wave signal reflected by the reflecting structure and the electromagnetic wave signal directly transmitted through the first region to the outside of the reflecting cavity can be transmitted out of the reflecting cavity almost synchronously, thereby making the antenna radiation more concentrated and further enhancing the antenna gain.

[0014] In some embodiments of this application, the reflector is a metal reflector. This can improve the signal reflection capability of the reflector and better reflect electromagnetic waves transmitted in the reflective cavity toward the reflector, thereby further enhancing the antenna gain.

[0015] The beneficial effects of this application are as follows: By placing the antenna module inside the housing cavity, the housing cavity can be used to house the antenna module, thereby reducing the overall size of the recording and broadcasting machine, making it more convenient to use and carry. Simultaneously, the housing provides protection for the antenna, preventing damage from collisions with other objects. Furthermore, the antenna module is integrated into the housing, eliminating the need for additional installation, resulting in higher integration and reduced manufacturing costs. Additionally, the electromagnetic wave signal radiated by the antenna will transmit in the transmitting cavity. Electromagnetic waves transmitted towards the reflector will be blocked by the reflector and reflected into the reflecting cavity. The reflected electromagnetic wave signal will coherently superimpose with other electromagnetic wave signals radiated by the antenna to form a directional radiation beam, which will then be directionally radiated. The beam propagates outward from the reflecting cavity through the first region, forming an effect similar to a directional antenna. This enhances the antenna gain in the first azimuth (the first azimuth is the combination of the azimuth angle and the downtilt angle of the antenna assembly), thereby improving the recording and broadcasting machine's ability to transmit information over long distances. This allows the recording and broadcasting machine to transmit information effectively over long distances with electronic devices such as cameras. Furthermore, the reflector also isolates electromagnetic wave signals, separating the antenna from other electronic components in the recording and broadcasting machine and preventing electromagnetic wave signals generated by other electronic components from interfering with the antenna. In addition, the antenna module's radiation azimuth angle is 360 degrees, giving the recording and broadcasting machine a strong antenna gain within a 360-degree angular range around its perimeter, minimizing the impact of the enclosure on the antenna module. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a recording and broadcasting machine in one embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the recording and broadcasting machine in another embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the antenna assembly and housing in one embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the antenna assembly and housing in another embodiment of this application.

[0021] Figure label:

[0022] 10. Box body; 11. Receiving cavity; 12. Reflecting cavity; 13. First region; 14. Base plate; 141. First part; 15. Top plate; 151. Second part; 16. Peripheral side plate; 20. Antenna assembly; 21. Antenna; 22. Reflector; 221. Reflecting surface; 222. First reflector; 223. Second reflector. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] In related technologies, recording and broadcasting machines typically use an external rod antenna as a communication antenna to transmit information with other devices, such as receiving and sending teachers' voice information, writing information on whiteboards, and video information from classroom cameras.

[0025] External rod antennas are usually quite large, which increases the overall size of the recording and broadcasting equipment, making it inconvenient to use and carry. In addition, external rod antennas are prone to collisions with other objects, which can damage them.

[0026] Furthermore, antenna gain refers to the ratio of the radiated power density of an antenna in a specified direction to the radiated power density of a reference antenna (usually an ideal point source) under the same input power. The specific principle of antenna gain has been disclosed in related technologies and will not be elaborated here. Antenna gain is usually related to the antenna angle; generally, the larger the antenna angle, the smaller the antenna gain. Rod antennas in related technologies are usually omnidirectional antennas, which are antennas that transmit and receive signals in 360 degrees on the horizontal plane. Therefore, rod antennas have relatively low antenna gain, usually only about 3dBi to 5dBi, which leads to poor long-distance information transmission capability of recording and broadcasting equipment.

[0027] To address the aforementioned technical problems, this application provides a recording and playback machine, such as... Figure 1 As shown, the recording and broadcasting machine includes a housing 10 and an antenna module.

[0028] The housing 10 has a receiving cavity 11, which provides installation space and protection for the antenna module. The antenna module is located within the receiving cavity 11 and includes at least one set of antenna assemblies 20, each including an antenna 21 (e.g., Figure 3It is understood that antenna 21 has signal transmission and reception functions. The recording components in the recording and broadcasting machine can transmit signals wirelessly through antenna 21, thereby realizing information interaction with other electronic devices. Antenna 21 can be a PCB antenna, steel sheet antenna, rod antenna, or other types of antenna. This application does not specifically limit the type of antenna 21. In this application, by placing the antenna module in the receiving cavity 11 of the housing 10, the receiving cavity 11 of the housing 10 can be used to store the antenna module, thereby reducing the overall size of the recording and broadcasting machine, making the recording and broadcasting machine more convenient to use and carry. At the same time, the housing 10 can be used to protect the antenna 21, preventing the antenna 21 from being damaged by collisions with other objects. In addition, the antenna module is integrated into the housing 10, and the antenna module does not need to be installed separately, resulting in higher integration and saving the manufacturing cost of the recording and broadcasting machine.

[0029] Specifically, the antenna assembly 20 also includes a reflector 22, which, together with the inner wall of the housing 10, forms a reflecting cavity 12. The antenna 21 is located within the reflecting cavity 12, and the reflector 22 is used to reflect electromagnetic wave signals. It can be understood that the side of the reflector 22 closest to the antenna 21 is a reflecting surface 221, which is used to reflect electromagnetic wave signals.

[0030] The portion of the side wall of the housing 10 that forms the reflective cavity 12 is made of non-metallic material, or the portion of the side wall of the housing 10 that forms the reflective cavity 12 has an opening for electromagnetic wave signals to pass through. It should be noted that the area within the portion of the side wall of the housing 10 that forms the reflective cavity 12 is the first region 13, through which electromagnetic wave signals enter and exit the reflective cavity 12. It is understood that the first region 13 allows electromagnetic wave signals radiated by the antenna 21 and those radiated by other electronic devices (such as microphones, cameras, and interactive panels) to pass smoothly through the housing 10, preventing the housing 10 from obstructing the wireless signal transmission between the antenna module and other electronic devices. In one embodiment, the portion of the housing 10 located in the first region 13 can be made of non-metallic material. Non-metallic materials have weaker blocking and reflection of electromagnetic wave signals, thus ensuring that electromagnetic wave signals can smoothly pass through the first region 13 and enter and exit the reflecting cavity 12. The portion of the housing 10 located in the first region 13 can be made of plastic, nylon, rubber, or other non-metallic materials. In this embodiment, the other portions of the housing 10 outside the first region 13 can be made of metallic or non-metallic materials. In another embodiment, the first region 13 is provided with an opening. The opening can be formed by removing the portion of the housing 10 located in the first region 13 after the housing 10 is formed, or the opening can be formed directly in the first region 13 during the formation of the housing 10. The opening allows electromagnetic wave signals to pass smoothly through the housing 10, preventing the housing 10 from obstructing the transmission of electromagnetic wave signals. In other embodiments, an opening can also be provided in the first region 13 of the housing 10, and a cover plate can be provided for the opening. The cover plate is movably disposed on the housing 10, and the cover plate can open and close the opening.

[0031] It should be noted that in this application, the electromagnetic wave signal radiated by antenna 21 will be transmitted in the reflective cavity 12. The electromagnetic wave transmitted towards the reflector 22 will be blocked by the reflector 22 and reflected by the reflective surface 221 into the reflective cavity 12. The reflected electromagnetic wave signal will coherently superimpose with other electromagnetic wave signals radiated by antenna 21 to form a directional radiation beam. Subsequently, the directional radiation beam will be transmitted out of the reflective cavity 12 through the first region, forming an effect similar to a directional antenna (an antenna that transmits and receives electromagnetic waves in a specific direction). Taking the direction in which the electromagnetic wave signal is transmitted out of the reflective cavity 12 through the first region 13 as the first azimuth (the first azimuth is the combination of the azimuth angle and the downtilt angle of the antenna assembly 20) as an example, the antenna gain of antenna 21 in the first azimuth can be enhanced, which can be increased to approximately 9dBi to 12.8dBi. This can improve the long-distance information transmission capability of the recording and broadcasting machine, thereby enabling the recording and broadcasting machine to perform good long-distance information transmission with electronic devices such as cameras.

[0032] It should also be noted that the reflector 22 also has the function of isolating electromagnetic wave signals, which can isolate the antenna 21 from other electronic devices in the recording and broadcasting machine, and prevent electromagnetic wave signals generated by other electronic devices from interfering with the antenna 21.

[0033] More specifically, the radiation azimuth angle of the antenna module is 360 degrees. It should be noted that the radiation azimuth angle of the antenna module refers to the angular range within which the antenna in the antenna module transmits and receives electromagnetic wave signals on the horizontal plane. The 360-degree radiation azimuth angle of the antenna module ensures strong antenna gain for the recording equipment within a 360-degree angular range around its perimeter. Furthermore, compared to an external rod antenna, the signals transmitted and received by an external rod antenna are not obstructed or interfered with by the housing. Therefore, the external rod antenna does not require much consideration of signal obstruction and interference. In this application, the antenna module is housed within the housing 10, and the electromagnetic wave signals transmitted and received by the antenna module are affected by the housing 10. By enhancing the antenna gain of the antenna 21 through the reflector 22 and covering the 360-degree radiation azimuth angle of the antenna module, the influence of the housing 10 on the antenna module can be further reduced.

[0034] In one embodiment, the reflector 22 can be a metal reflector. Metal materials have a strong ability to reflect electromagnetic wave signals, which can improve the signal reflection capability of the reflector 22 and better reflect the electromagnetic waves transmitted in the reflecting cavity 12 toward the reflector 22, thereby further enhancing the antenna gain of the antenna 21 in the first position. The material used to make the reflector 22 can be copper, aluminum, iron, copper alloy, aluminum alloy, iron alloy, or other metal materials.

[0035] See also Figure 1 As shown, in some embodiments of this application, the box body 10 includes a bottom plate 14, a top plate 15, and peripheral side plates 16. The bottom plate 14 and the top plate 15 are disposed opposite each other, and the peripheral side plates 16 are located between the bottom plate 14 and the top plate 15. The bottom plate 14, the top plate 15, and the peripheral side plates 16 surround and form a receiving cavity 11. The overall shape of the box body 10 can be cuboid, cube, cylinder, pentahedron, or other shapes.

[0036] The reflector 22 is disposed opposite to and connected to the peripheral side plate 16. The reflector 22, the top plate 15, the bottom plate 14 and the peripheral side plate 16 form a reflective cavity 12. The part of the side wall of the peripheral side plate 16 that forms the reflective cavity 12 is made of non-metallic material. Alternatively, the part of the side wall of the peripheral side plate 16 that forms the reflective cavity 12 has an opening, that is, the first region 13 is located in the peripheral side plate 16. It is understandable that the overall shape of the box 10 is a relatively regular polyhedral shape. When using the recording and broadcasting machine, the bottom plate 14 can be placed on a flat support surface such as a table or tabletop, with the top plate 15 facing upwards, making the placement of the box 10 more stable. In addition, compared to setting the first area 13 on the top plate 15 or the bottom plate 14, the electromagnetic wave signal needs to be transmitted vertically to pass through the top plate 15 and the bottom plate 14 to enter and exit the reflection cavity 12. Other electronic devices that cooperate with the recording and broadcasting machine need to be placed above and below the recording and broadcasting machine to achieve good information interaction, and the available placement space for the electronic devices is relatively small. In this embodiment, the first area 13 is set on the peripheral side plate 16. The electromagnetic wave signal can enter and exit the reflection cavity 12 from the side of the box 10 through the first area 13. Other electronic devices that cooperate with the recording and broadcasting machine can be placed on the side of the recording and broadcasting machine. The electronic devices can be placed in a 360-degree position around the recording and broadcasting machine, and the available placement space for the electronic devices is relatively large.

[0037] In some embodiments, the antenna module includes multiple sets of antenna components 20, which are arranged at intervals along the periphery of the peripheral side plate 16. The sum of the radiation azimuth angles of all antenna components 20 is greater than or equal to 360 degrees. It is understood that the positions of each antenna component 20 and the reflective cavity 12 formed by the housing 10 are different, and the positions of the first region 13 corresponding to each reflective cavity 12 are also different, resulting in different azimuths for electromagnetic wave signals entering and exiting each reflective cavity 12. One antenna component 20 can enhance the antenna gain of the recording and broadcasting machine in one azimuth. Multiple antenna components 20 arranged at intervals along the periphery of the peripheral side plate 16 can enhance the antenna gain of the recording and broadcasting machine in multiple azimuths. Multiple antenna components 20 can cooperate with each other, enabling the recording and broadcasting machine to have strong antenna gain within a 360-degree angular range on the periphery, thereby enabling the recording and broadcasting machine to perform good long-distance information transmission with electronic devices located at different locations on the recording and broadcasting machine.

[0038] It should also be noted that the operation of multiple antenna components 20 can be controlled by the control component in the recording and broadcasting machine. The control component can control the operation of each antenna component 20 based on the signal transmission strength of each antenna component 20. The control component can control the antenna component 20 with the strongest current signal transmission strength to operate normally, while controlling the other antenna components 20 to be turned off or operate in a low-power state. This is to reduce the power consumption of the recording and broadcasting machine while ensuring good long-distance information transmission between the recording and broadcasting machine and other electronic devices. For example, when there are four antenna components 20, if the control component detects that the first antenna component 20 has the strongest current signal transmission strength, the control component will control the first antenna component 20 to operate normally, while controlling the other three antenna components 20 to be turned off or operate in a low-power state.

[0039] In one embodiment, the radiation areas of two adjacent antenna components 20 may overlap, so that the radiation area of ​​the antenna component 20 covers all directions around the recording and broadcasting machine, preventing antenna gain enhancement blind spots. The radiation area of ​​the antenna component 20 refers to the area within the radiation azimuth angle range of the antenna component 20. In one embodiment, four antenna components 20 may be provided, and the radiation azimuth angle of each antenna component 20 may be 90 degrees. In other embodiments, three, five, or other numbers of antenna components 20 may be provided, and the radiation azimuth angle of each antenna component 20 may be 80 degrees, 100 degrees, 120 degrees, or other angles.

[0040] In some embodiments of this application, the box body 10 is generally polyhedral in shape, and the reflector 22 is disposed opposite to the corner portion of the box body 10, and the corner portion opposite to the reflector 22 forms a reflective cavity 12 with the reflector 22. It can be understood that the corner portion of the box body 10 refers to the junction between two adjacent side surfaces of the box body 10. The box body 10 has multiple corner portions. For example, the peripheral side plate 16 includes an adjacent first side plate and a second side plate. The junction of the first side plate and the second side plate is a corner portion of the box body 10. The first end of the reflector 22 is connected to the first side plate, and the second end of the reflector 22 is connected to the second side plate. The reflector 22, the top plate 15, the bottom plate 14, the first side plate, and the second side plate surround and form a reflective cavity 12.

[0041] It should be noted that, for ease of placement, most of the electronic components of the waveform recorder are typically located in the central area within the housing 10. The corner areas within the housing 10 are often difficult to utilize. In this embodiment, by placing the reflector 22 in the corner area of ​​the housing 10, a reflecting cavity 12 is formed in the corner area, thus fully utilizing the corner area within the housing 10. This increases the utilization rate of the accommodating cavity 11 within the housing 10. Simultaneously, it allows the antenna 21 to be located away from the electronic components in the central area, preventing interference between the antenna 21 and other electronic components. The housing 10 can be rectangular, cubic, tetrahedral, pentahedral, or other shapes.

[0042] Furthermore, multiple sets of reflective components are provided, with one set of reflective components positioned opposite a corner of the housing 10, ensuring that all corner areas within the housing 10 are utilized and that the recording and broadcasting machine has strong antenna gain in all directions around its perimeter. The housing 10 can be cuboid in shape, with four corner sections, and four sets of antenna components 20 are provided.

[0043] See also Figure 1 As shown, in one embodiment, the base plate 14 includes a first portion 141 forming a reflective cavity 12, and the top plate 15 includes a second portion 151 forming a reflective cavity 12. Both the first portion 141 and the second portion 151 are made of metal, so that the first portion 141 and the second portion 151 have strong reflective capabilities for electromagnetic wave signals, preventing electromagnetic wave signals in the reflective cavity 12 from entering or leaving the reflective cavity 12 through the first portion 141 and the second portion 151, so that the electromagnetic wave signals can be transmitted more concentratedly in the first direction, thereby further enhancing the antenna gain in the first direction.

[0044] See also Figure 1As shown, in one embodiment of this application, the reflector 22 includes a first reflector 222 and a second reflector 223. The first reflector 222 and the second reflector 223 are connected and set at an angle. Both the first reflector 222 and the second reflector 223 are connected to the peripheral side plate 16. The first reflector 222 and the second reflector 223, together with the top plate 15, the bottom plate 14 and the peripheral side plate 16, form a reflective cavity 12. It is understood that both the first reflector 222 and the second reflector 223 can reflect electromagnetic wave signals, so that the radiation direction of the antenna 21 is concentrated within the angle range formed by the first reflector 222 and the second reflector 223, thereby enhancing the antenna gain of the antenna 21. The first reflector 222 and the second reflector 223 can be integrally formed, or the first reflector 222 and the second reflector 223 can be formed separately and then spliced ​​by welding, snap-fitting, gluing, riveting or other methods. The angle formed by the first reflector 222 and the second reflector 223 is α, which can be 90 degrees, 30 degrees, 45 degrees, 60 degrees, 75 degrees, 120 degrees or other angles.

[0045] like Figure 1 As shown, in another embodiment of this application, the projection of the reflector 22 onto the base plate 14 is an inwardly concave arc shape moving away from the reflecting cavity 12. Both the first and second ends of the reflector 22 are connected to the peripheral side plate 16. It can be understood that the reflecting surface 221 of the reflector 22 is an arc-shaped surface. The reflecting surface 221 can concentrate the radiation direction of the antenna 21 within the arc range of the reflecting surface 221, thereby enhancing the antenna gain of the antenna 21. Furthermore, the reflecting surface 221 can form a structure similar to a concave surface, and it can also have a signal focusing point similar to the focal point of a concave surface. This allows the electromagnetic wave signal, after being reflected by the reflecting surface 221, to be focused near the signal focusing point, thereby making the radiation direction of the antenna 21 more concentrated and further enhancing the antenna gain of the antenna 21.

[0046] like Figure 3 and Figure 4As shown, in one embodiment of this application, at least one of the reflector 22, the base plate 14, and the top plate 15 is provided with an antenna 21. It should be noted that, compared to placing the antenna 21 in the first region 13 of the housing 10, in this embodiment, placing the antenna 21 on at least one of the reflector 22, the base plate 14, and the top plate 15 can shorten the distance between the antenna 21 and the reflecting structure (reflector 22, base plate 14, and top plate 15) used to reflect the antenna 21, thereby shortening the time for the electromagnetic wave signal to be reflected from the reflected structure to the first region 13. This allows the electromagnetic wave signal reflected by the reflecting structure and the electromagnetic wave signal directly transmitted to the outside of the reflecting cavity 12 through the first region 13 to be transmitted out of the reflecting cavity 12 basically synchronously, thereby making the radiation of the antenna 21 more concentrated and further enhancing the antenna gain of the antenna 21. The antenna 21 can be provided in one or more ways. It can be provided on only one of the reflector 22, the base plate 14 and the top plate 15, or on two of the reflector 22, the base plate 14 and the top plate 15, or on all of the reflector 22, the base plate 14 and the top plate 15. The antenna 21 can be a monopole antenna or a multipole antenna.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A recorder / player characterized by comprising: The application relates to an antenna module. The antenna module comprises a box body and an antenna module. The antenna module comprises at least one set of antenna components. The antenna components comprise an antenna and a reflector.

2. The recorder according to claim 1, characterized in that, The reflector is arranged opposite to the inner wall of the box body to form a reflection cavity. The antenna is arranged in the reflection cavity.

3. The recorder according to claim 2, wherein The reflector is used for reflecting electromagnetic wave signals.

4. The recorder according to claim 3, wherein The part of the side wall of the box body, which forms the reflection cavity, is made of non-metal or is provided with an opening for the electromagnetic wave signals.

5. The recorder according to claim 2, wherein The radiation azimuth angle of the antenna module is 360 degrees.

6. The recorder according to claim 5, wherein The box body comprises a bottom plate, a top plate and a peripheral side plate.

7. The recorder according to claim 2, wherein The bottom plate and the top plate are arranged opposite to each other.

8. The recorder according to claim 2, wherein The peripheral side plate is arranged between the bottom plate and the top plate. The bottom plate, the top plate and the peripheral side plate form the accommodation cavity.

9. The recorder according to claim 2, wherein, The reflector is arranged opposite to and connected to the peripheral side plate.

10. The recorder according to claim 1, wherein The reflector, the top plate, the bottom plate and the peripheral side plate form the reflection cavity. The part of the side wall of the peripheral side plate, which forms the reflection cavity, is made of non-metal or is provided with the opening. The antenna module comprises a plurality of sets of antenna components. The sets of antenna components are arranged along the periphery of the peripheral side plate. The sum of the radiation azimuth angles of all the antenna components is greater than or equal to 360 degrees. The radiation areas of two adjacent antenna components have an overlapping area. The box body is a polyhedron. The reflector is arranged opposite to the corner part of the box body. The corner part opposite to the reflector forms the reflection cavity with the reflector. The antenna module comprises a plurality of sets of antenna components. One set of antenna components is arranged opposite to one corner part of the box body. The bottom plate comprises a first part forming the reflection cavity. The top plate comprises a second part forming the reflection cavity. The first part and the second part are made of metal. The reflector comprises a first reflector plate and a second reflector plate. The first reflector plate and the second reflector plate are connected and arranged at an angle. The first reflector plate and the second reflector plate are connected to the peripheral side plate. The first reflector plate and the second reflector plate form the reflection cavity with the top plate, the bottom plate and the peripheral side plate. The projection of the reflector on the bottom plate is an arc concave in the direction away from the reflection cavity. The first end and the second end of the reflector are connected to the peripheral side plate. At least one of the reflector, the bottom plate and the top plate is provided with the antenna. The reflector is a metal reflector.

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