Built-in antenna structure and set top box device
By designing a built-in antenna structure, including a first antenna radiator, a second antenna radiator, and a coaxial radio frequency line, and compactly configuring them within the set-top box, the problem of the inability to integrate dual-band WIFI antennas is solved, achieving efficient frequency band coverage and performance improvement.
Patent Information
- Application Number
- CN202423125449.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing dual-band Wi-Fi antennas cannot be integrated into set-top boxes and have poor performance, failing to meet the requirements for miniaturization and high performance.
Design an embedded antenna structure including a first antenna radiator, a second antenna radiator, and a coaxial radio frequency line, which is compactly configured within a set-top box through a connection and support structure, and fixed and dissipated through a reference ground plane and a heat conduction component, to achieve resonance and coupling to cover the 2.4 GHz to 5.85 GHz frequency band.
It achieves a compact size with an internal antenna structure, a VSWR below 2.0, an efficiency of 50% to 70%, and a gain of up to 3.5 dBi, meeting the integration requirements of set-top boxes and improving performance.
Smart Images
Figure CN223502191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of antenna technology, and more specifically, to a built-in antenna structure and a set-top box device. Background Technology
[0002] An antenna is a transducer that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa, thus enabling it to transmit or receive electromagnetic waves in wireless equipment. Most antennas are reversible, meaning the same antenna can be used as both a transmitting and receiving antenna. The fundamental characteristic parameters of the same antenna are identical whether it is used for transmitting or receiving; this is known as the reciprocity theorem. Currently, antennas are widely used in engineering systems that utilize electromagnetic waves to transmit information, such as radio communication, broadcasting, television, radar, navigation, electronic warfare, remote sensing, and radio astronomy.
[0003] Dual-band Wi-Fi antennas, commonly used in daily life, are widely applied in smart home products such as routers, set-top boxes, and smart locks. Taking set-top boxes as an example, current dual-band Wi-Fi antennas used in set-top boxes are all external antennas. While they can generally meet the current demands for high-capacity, high-speed data transmission, they are bulky, costly, and cannot be integrated into the product itself. Integrating existing built-in antennas into the set-top box, on the other hand, results in poor performance. Therefore, providing a built-in antenna structure that can be integrated into the set-top box while offering superior performance is both important and meaningful. Utility Model Content
[0004] The purpose of this invention is to provide a built-in antenna structure and a set-top box device, which can fill the gap in the integration of built-in antenna structure into the set-top box and improve antenna performance.
[0005] The embodiments of this utility model are implemented as follows:
[0006] In one aspect, this invention provides a built-in antenna structure, which is disposed within and fixedly connected to a set-top box. The built-in antenna structure includes a first antenna radiator, a second antenna radiator, and a coaxial radio frequency (RF) cable. The first and second antenna radiators are interconnected. The second antenna radiator has a first pad connected to the core wire of the coaxial RF cable, and the braided layer of the coaxial RF cable is grounded. This built-in antenna structure fills the gap left by integrating built-in antenna structures within a set-top box and improves antenna performance.
[0007] Optionally, the built-in antenna structure also includes a reference ground plane, which is located on the same side of the first antenna radiator and the second antenna radiator, and the reference ground plane is connected to the braided layer of the coaxial radio frequency line.
[0008] Optionally, the built-in antenna structure also includes a support structure connected between the reference ground and the first antenna radiator.
[0009] Optionally, a first positioning structure is provided on the side of the reference floor facing the first antenna radiator. The first positioning structure is located on the outer periphery of the support structure and is used to position the support structure.
[0010] Optionally, the built-in antenna structure also includes a heat conduction element, one side of which is connected to the side of the reference ground facing away from the first antenna radiator, and the other side of which is configured to be connected to a heat sink inside the set-top box. The heat conduction element is used to conduct heat from the reference ground to the heat sink.
[0011] Optionally, a second positioning structure is provided on the side of the reference floor away from the first antenna radiator. The second positioning structure is located on the outer periphery of the heat conduction element and is used to position the heat conduction element.
[0012] Optionally, the heat conduction element includes at least two elements, with any two elements spaced apart on the reference floor.
[0013] Optionally, the built-in antenna structure also includes a mounting plate that is connected to a reference floor. The mounting plate has mounting holes through which the connector can be fixed to the set-top box.
[0014] Optionally, the first antenna radiator and the second antenna radiator are arranged in the same plane; and / or, the first antenna radiator includes a first U-shaped structure, the second antenna radiator includes a second U-shaped structure, the second U-shaped structure is disposed inside the first U-shaped structure, and the opening directions of the first U-shaped structure and the second U-shaped structure are the same; the openings of the first U-shaped structure and the second U-shaped structure are respectively closed by a connecting structure, and the first U-shaped structure and the second U-shaped structure are connected by a connecting structure.
[0015] In another aspect, this utility model provides a set-top box device, which includes a housing and the aforementioned built-in antenna structure, wherein the built-in antenna structure is disposed within the housing.
[0016] The beneficial effects of this utility model include:
[0017] The built-in antenna structure provided in this application is configured within and fixedly connected to a set-top box. The built-in antenna structure includes a first antenna radiator, a second antenna radiator, and a coaxial radio frequency (RF) line. The first and second antenna radiators are interconnected. The second antenna radiator has a first pad connected to the core wire of the coaxial RF line, and the braided layer of the coaxial RF line is grounded. By setting the aforementioned built-in antenna structure and interconnecting the first and second antenna radiators, this application achieves a more compact structure, reducing the overall size of the built-in antenna structure and facilitating its integration within the set-top box. Furthermore, the built-in antenna structure designed in this application, after testing, can achieve a VSWR below 2.0, an efficiency between 50% and 70%, and a maximum gain of 3.5 dBi. Therefore, this built-in antenna structure can be integrated into a set-top box, filling the gap in integrated built-in antenna structures within the set-top box and improving antenna performance. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 One of the schematic diagrams of the built-in antenna structure provided in the embodiment of this utility model;
[0020] Figure 2 This is the second schematic diagram of the built-in antenna structure provided in the embodiment of the present utility model;
[0021] Figure 3 The third schematic diagram of the built-in antenna structure provided in the embodiment of this utility model;
[0022] Figure 4 Fourth schematic diagram of the built-in antenna structure provided in the embodiment of this utility model;
[0023] Figure 5 The fifth schematic diagram of the built-in antenna structure provided in the embodiment of this utility model.
[0024] Icons: 10-First antenna radiator; 20-Second antenna radiator; 30-Coaxial RF line; 31-Terminal; 40-First pad; 50-Second pad; 60-Reference ground plane; 61-First positioning structure; 62-Second positioning structure; 70-Support structure; 80-Heat conduction component; 90-Mounting plate; 91-Mounting hole. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Please refer to Figures 1 to 3 This embodiment provides a built-in antenna structure, which is configured inside and fixedly connected to a set-top box. The built-in antenna structure includes a first antenna radiator 10, a second antenna radiator 20, and a coaxial radio frequency line 30. The first antenna radiator 10 and the second antenna radiator 20 are interconnected. The second antenna radiator 20 has a first pad 40, which is connected to the core wire of the coaxial radio frequency line 30. The braided layer of the coaxial radio frequency line 30 is grounded. This built-in antenna structure can fill the gap in the integration of built-in antenna structures within a set-top box and can improve antenna performance.
[0032] It should be noted that in this embodiment, the built-in antenna structure is configured inside the set-top box and is fixedly connected to the set-top box. In other words, the built-in antenna structure of this application can be applied inside the set-top box, thereby filling the gap in the integration of built-in antenna structures inside the set-top box.
[0033] The built-in antenna structure of this application includes a first antenna radiator 10, a second antenna radiator 20, and a coaxial radio frequency line 30. In this embodiment, the first antenna radiator 10 and the second antenna radiator 20 are interconnected, which makes the overall structure of the built-in antenna structure more compact, reduces its size, and facilitates its application in set-top boxes.
[0034] The second antenna radiator 20 has a first pad 40, wherein the first pad 40 is electrically connected to the core wire of the coaxial radio frequency line 30, and the braided layer of the coaxial radio frequency line 30 is grounded. In this way, the built-in antenna structure can resonate through the first antenna radiator 10, or through the second antenna radiator 20, or through the coupling of the first antenna radiator 10 and the second antenna radiator 20.
[0035] It should be noted that, in this embodiment, the first antenna radiator 10 of the built-in antenna structure designed in this application can generate resonance in the 2.4GHz to 2.5GHz frequency band; the second antenna radiator 20 itself and the coupling between the first antenna radiator 10 and the second antenna radiator 20 can generate resonance in the 5.15GHz to 5.85GHz frequency band. In other words, through the self-resonance of the first antenna radiator 10 and the second antenna radiator 20 of the built-in antenna structure provided in this application, and their mutually coupled radiation structure, linearly polarized omnidirectional radiation waves in the 2.4GHz to 2.5GHz and 5.15GHz to 5.85GHz bands can be covered.
[0036] In addition, the built-in antenna structure provided in this application can achieve a VSWR of less than 2.0, while achieving an efficiency of 50% to 70% and a gain of up to 3.5 dBi, which can fill the gap in the market for small-sized, high-performance built-in WIFI antennas.
[0037] In summary, the built-in antenna structure provided in this application is configured within and fixedly connected to a set-top box. The built-in antenna structure includes a first antenna radiator 10, a second antenna radiator 20, and a coaxial RF line 30. The first antenna radiator 10 and the second antenna radiator 20 are interconnected. The second antenna radiator 20 has a first pad 40, which is connected to the core wire of the coaxial RF line 30. The braided layer of the coaxial RF line 30 is grounded. By setting the aforementioned built-in antenna structure and interconnecting the first antenna radiator 10 and the second antenna radiator 20, this application achieves a more compact structure, reducing the overall volume of the built-in antenna structure and facilitating its configuration within the set-top box. Furthermore, the built-in antenna structure designed in this application, after testing, can achieve a VSWR below 2.0, an efficiency between 50% and 70%, and a maximum gain of 3.5 dBi. Therefore, this built-in antenna structure can be configured within a set-top box, filling the gap in integrated built-in antenna structures within the set-top box and improving antenna performance.
[0038] For ease of grounding, optionally, in this embodiment, please refer to Figure 1 and Figure 2 The built-in antenna structure also includes a reference ground plane 60, which is located on the same side of the first antenna radiator 10 and the second antenna radiator 20, and the reference ground plane 60 is connected to the braided layer of the coaxial radio frequency line 30.
[0039] Furthermore, in this embodiment, the terminal 31 of the coaxial RF line 30 can be an IPEX first-generation terminal 31, which has a smaller size and weight, making it easier to miniaturize and lighten the built-in antenna structure.
[0040] Optionally, the built-in antenna structure also includes a support structure 70, which is connected between the reference ground plane 60 and the first antenna radiator 10. It should be noted that the first antenna radiator 10 and the second antenna radiator 20 are located on one side of the support structure 70, and the reference ground plane 60 is located on the other side. The support structure 70 provides support and a certain degree of restraint for the reference ground plane 60, the first antenna radiator 10, and the second antenna radiator 20.
[0041] The support structure 70 can be made of foam, which can be adhered between the first antenna radiator 10 and the reference ground 60. Of course, using foam as the material for the support structure 70 is merely an example; other feasible materials can be used in other embodiments.
[0042] To facilitate the positioning of the support structure 70, optionally, a first positioning structure 61 is provided on the side of the reference floor 60 facing the first antenna radiator 10. The first positioning structure 61 is located on the outer periphery of the support structure 70 and is used to position the support structure 70. By providing the first positioning structure 61 on the side of the reference floor 60 facing the first antenna radiator 10, the position of the support structure 70 can be determined according to the position of the first positioning structure 61 when setting the support structure 70, thus preventing the support structure 70 from shifting during installation.
[0043] The first positioning structure 61 can be a positioning groove, a positioning protrusion, etc. This application does not limit the specific structural features of the first positioning structure 61, as long as it can play a positioning role. In addition, the orthographic projection of the first positioning structure 61 on the reference floor 60 can be located on the outer periphery of the orthographic projection of the support structure 70 on the reference floor 60. For example, the orthographic projection of the first positioning structure 61 on the reference floor 60 can fully or partially surround the orthographic projection of the support structure 70 on the reference floor 60, or the orthographic projection of the first positioning structure 61 on the reference floor 60 can be located on opposite sides or adjacent sides of the orthographic projection of the support structure 70 on the reference floor 60.
[0044] For rapid heat dissipation of the built-in antenna structure, please refer to... Figure 3 and Figure 4 Optionally, the built-in antenna structure also includes a heat-conducting component 80. One side of the heat-conducting component 80 is connected to the side of the reference ground 60 facing away from the first antenna radiator 10, and the other side of the heat-conducting component 80 is configured to connect to a heat sink inside the set-top box. The heat-conducting component 80 is used to conduct heat from the reference ground 60 to the heat sink. The heat-conducting component 80 allows the heat from the built-in antenna structure to be quickly conducted to the heat sink, thereby achieving rapid heat dissipation.
[0045] Optionally, a second positioning structure 62 is provided on the side of the reference floor 60 facing away from the first antenna radiator 10. The second positioning structure 62 is located on the outer periphery of the heat conduction element 80 and is used to position the heat conduction element 80. This second positioning structure 62 is used to position the heat conduction element 80, thereby enabling the installation position of the heat conduction element 80 to be quickly positioned during installation, preventing the heat conduction element 80 from shifting position during installation.
[0046] Similar to the first positioning structure 61, the second positioning structure 62 can be a positioning groove, a positioning protrusion, etc. The second positioning structure 62 can fully or partially surround the heat conduction element 80, or it can be located on opposite sides or adjacent sides of the heat conduction element 80.
[0047] Furthermore, to improve heat dissipation efficiency, optionally, the heat conduction element 80 includes at least two, with any two heat conduction elements 80 spaced apart on the reference floor 60. Of course, when at least two heat conduction elements 80 are provided, the corresponding number of second positioning structures 62 should also be at least two, with a one-to-one correspondence between the second positioning structure 62 and the heat conduction element 80 (i.e., each heat conduction element 80 is correspondingly configured with a second positioning structure 62).
[0048] Additionally, the built-in antenna structure of this application may also include a mounting plate 90, please refer to... Figure 1 and Figure 5 The mounting plate 90 is connected to the reference floor 60. The mounting plate 90 has mounting holes 91, through which the connector can be fixed to the set-top box. This application, by providing a mounting plate 90 with mounting holes 91, allows the built-in antenna structure to be fixed inside the set-top box. The mounting holes 91 can be screw holes, and the connector can be a corresponding screw-in component.
[0049] Optionally, in this embodiment, please refer to Figure 1 The first antenna radiator 10 and the second antenna radiator 20 are arranged coplanarly. The first antenna radiator 10 includes a first U-shaped structure, and the second antenna radiator 20 includes a second U-shaped structure. The second U-shaped structure is disposed within the first U-shaped structure, and the opening directions of the first U-shaped structure and the second U-shaped structure are the same. The openings of the first U-shaped structure and the second U-shaped structure are respectively closed by a connecting structure, and the first U-shaped structure and the second U-shaped structure are connected by the connecting structure.
[0050] It should be noted that the specific structures of the first antenna radiator 10 and the second antenna radiator 20 can be found in [reference needed]. Figure 1 and Figure 4 As shown. In addition, the built-in antenna structure may also include a second pad 50, which is soldered to the braided layer of the coaxial radio frequency line 30. The second pad 50 is connected to the reference ground plane 60 to jointly form a reference ground.
[0051] In another aspect, this utility model provides a set-top box device, which includes a housing and the aforementioned built-in antenna structure, the built-in antenna structure being disposed within the housing. The specific structure and technical effects of the built-in antenna structure have been described and explained in detail above, and therefore will not be repeated here.
[0052] The above description is merely an optional embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
Claims
1. A built-in antenna structure, characterized in that, The built-in antenna structure is configured inside the set-top box and fixedly connected to the set-top box. The built-in antenna structure includes a first antenna radiator, a second antenna radiator, and a coaxial radio frequency line. The first antenna radiator and the second antenna radiator are connected to each other. The second antenna radiator has a first pad, which is connected to the core wire of the coaxial radio frequency line. The braided layer of the coaxial radio frequency line is grounded.
2. The built-in antenna structure according to claim 1, characterized in that, The built-in antenna structure also includes a reference ground plane, which is located on the same side of the first antenna radiator and the second antenna radiator, and the reference ground plane is connected to the braided layer of the coaxial radio frequency line.
3. The built-in antenna structure according to claim 2, characterized in that, The built-in antenna structure also includes a support structure, which is connected between the reference ground and the first antenna radiator.
4. The built-in antenna structure according to claim 3, characterized in that, The reference floor is provided with a first positioning structure on the side facing the first antenna radiator. The first positioning structure is located on the outer periphery of the support structure and is used to position the support structure.
5. The built-in antenna structure according to claim 2, characterized in that, The built-in antenna structure also includes a heat conduction element, one side of which is connected to the side of the reference floor away from the first antenna radiator, and the other side of which is configured to be connected to a heat sink inside the set-top box. The heat conduction element is used to conduct heat from the reference floor to the heat sink.
6. The built-in antenna structure according to claim 5, characterized in that, The reference floor is provided with a second positioning structure on the side opposite to the first antenna radiator. The second positioning structure is located on the outer periphery of the heat conduction element and is used to position the heat conduction element.
7. The built-in antenna structure according to claim 5, characterized in that, The heat-conducting element includes at least two, and any two of the heat-conducting elements are disposed at intervals on the reference floor.
8. The built-in antenna structure according to claim 2, characterized in that, The built-in antenna structure also includes a mounting plate, which is connected to the reference floor. The mounting plate has mounting holes, through which the connector can be fixed to the set-top box.
9. The built-in antenna structure according to any one of claims 1 to 8, characterized in that, The first antenna radiator and the second antenna radiator are arranged in a coplanar manner; And / or, the first antenna radiator includes a first U-shaped structure, the second antenna radiator includes a second U-shaped structure, the second U-shaped structure is disposed within the first U-shaped structure, and the opening directions of the first U-shaped structure and the second U-shaped structure are the same; the openings of the first U-shaped structure and the openings of the second U-shaped structure are respectively closed by a connecting structure, and the first U-shaped structure and the second U-shaped structure are connected by the connecting structure.
10. A set-top box device, characterized in that, It includes a housing and a built-in antenna structure as described in any one of claims 1 to 9, wherein the built-in antenna structure is disposed within the housing.