A 2.4g antenna
By combining injection-molded isolators with laser-engraved plate antenna sheets, the problem of deteriorated inter-antenna isolation was solved, achieving a high-isolation antenna layout, optimizing signal reception and transmission, and improving communication performance and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAOKE ANT
- Filing Date
- 2025-11-12
- Publication Date
- 2026-07-14
AI Technical Summary
Achieving a high-isolation antenna layout within a limited space solves the signal interference problem caused by the deterioration of inter-antenna isolation and improves communication performance.
The design combines injection-molded isolators with plate-type laser-engraved antenna sheets, with separate zones for signal reception and transmission functions. The thick-walled injection-molded isolators form an electromagnetic shielding cavity to isolate electromagnetic interference.
It optimizes signal reception and transmission, effectively isolates electromagnetic interference, improves the antenna's communication performance and reliability, and reduces the risk of signal interference.
Smart Images

Figure CN224502339U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to antennas, specifically a 2.4G antenna. Background Technology
[0002] With the evolution of mobile communication technologies such as Multiple-Input Multiple-Output (MIMO), integrating more antennas into electronic devices has become a key way to improve system capacity and quality of service. However, the physical space of electronic devices is extremely limited. Increasing the number of antennas not only exacerbates the difficulty of spatial layout but also leads to a deterioration in the isolation between antennas, which in turn causes signal interference and ultimately restricts overall communication performance. Therefore, how to achieve a high-isolation antenna layout within a limited space has become an urgent technical challenge to be solved. Utility Model Content
[0003] The purpose of this invention is to provide a 2.4G antenna to address the aforementioned shortcomings in the prior art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a 2.4G antenna, including an injection-molded isolator, one side of which is provided with mounting grooves extending to the upper and lower surfaces respectively, and a plate-type laser-engraved antenna piece is embedded in the mounting groove;
[0005] The portion of the mounting groove on the upper surface of the plate-type laser-engraved antenna sheet consists of symmetrically distributed long rectangular contact pieces, and the mounting groove is provided with an isolation protrusion that fills the space between two of the long rectangular contact pieces.
[0006] The mounting slot on the lower surface is a geometric polygonal slot, and the plate-type laser-engraved antenna sheet includes an externally exposed signal receiving board embedded in the geometric polygonal slot.
[0007] Preferably, the thickness of the plate-type laser-engraved antenna sheet is the same as the thickness of the mounting groove.
[0008] Preferably, the plate-type laser-engraved antenna sheet includes a connecting part, which is embedded in the mounting groove on the side of the injection-molded isolator, and the connection between the connecting contact piece and the externally exposed signal receiving board is rounded.
[0009] Preferably, the injection-molded isolator is a long rectangular piece with one side corner rounded, and the plate-type laser-engraved antenna sheet is distributed opposite to the rounded corner.
[0010] Preferably, the upper surface of the injection-molded isolation component is provided with a first side plate that is flush with one side of the rounded corner.
[0011] Preferably, a second side plate is fixedly provided on the upper surface of the injection-molded isolation component, which is flush with the side edge. The height difference between the upper surface of the second side plate and the upper surface of the injection-molded isolation component is one-third of the height difference between the upper surface of the first side plate and the upper surface of the injection-molded isolation component.
[0012] Preferably, a longitudinal reinforcing rib is fixedly provided on the upper surface of the injection-molded isolation component, with one end connected to the second side plate and the other end connected to the first side plate;
[0013] The upper surface of the injection-molded isolation component is fixedly provided with a third side plate that is flush with the side edge, and the end of the third side plate is at a predetermined distance from the mounting groove.
[0014] A first horizontal reinforcing rib is fixedly provided on the longitudinal reinforcing rib. One end of the first horizontal reinforcing rib is fixedly connected to the third side plate, and the other end is fixedly connected to the first side plate.
[0015] Preferably, a second horizontal reinforcing rib distributed parallel to the first horizontal reinforcing rib is fixedly installed between the first side plate and the longitudinal reinforcing rib.
[0016] The second horizontal stiffener is used to divide the space enclosed by the first side plate, the longitudinal stiffener, and the second side plate into two equal parts;
[0017] The injection-molded isolation component has screw holes that connect to the enclosed space.
[0018] Preferably, the side wall of the second side plate is fixedly equipped with a mounting ear, the side of which is flush with the side of the first side plate, and screw holes are symmetrically opened thereon.
[0019] Preferably, the side wall of the third side plate is fixedly equipped with a mounting ear, the side of which is flush with the side of the first side plate, and screw holes are symmetrically opened thereon.
[0020] In the above technical solution, the 2.4G antenna provided by this utility model has the following beneficial effects: the plate-type laser-engraved antenna sheet is installed and fixed by an injection-molded isolator. Its functional areas are clearly divided according to signal transmission and reception requirements: an exposed signal receiving board is provided on the outer side to optimize signal reception; a long rectangular contact piece is arranged on the inner side to ensure a stable signal transmission connection. Furthermore, the one-piece molded thick-walled injection-molded isolator constitutes a complete electromagnetic shielding cavity, which can effectively isolate internal electromagnetic interference and ensure antenna performance. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0022] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0023] Figure 2 A schematic diagram of the mounting groove provided in an embodiment of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the external signal receiving board provided in an embodiment of the present invention.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Injection-molded isolator; 11. Mounting groove; 12. Isolation protrusion; 13. Second side panel; 14. Longitudinal reinforcing rib; 15. Third side panel; 16. First side panel; 17. Second horizontal reinforcing rib; 18. First horizontal reinforcing rib; 2. Plate-type laser-engraved antenna piece; 21. Long rectangular contact piece; 22. Externally exposed signal receiving board; 23. Connecting part; 3. Rounded corner edge; 4. Mounting ear. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0028] Example 1
[0029] This embodiment provides a basic structure for a 2.4G antenna, such as... Figure 1 As shown, it mainly includes an injection-molded insulating component 1 and a plate-type laser-engraved antenna sheet 2.
[0030] The injection-molded isolator 1 is a one-piece molded plastic part, with a mounting groove 11 on one side of its main body, which extends to the upper and lower surfaces respectively. The plate-type laser-engraved antenna piece 2 is fixedly installed in the mounting groove 11 by inlay injection molding.
[0031] Specifically, the portion of the plate-type laser-engraved antenna piece 2 located on the upper surface of the injection-molded isolator 1 constitutes two symmetrically distributed long rectangular contact pieces 21 for achieving a stable signal transmission connection. The mounting groove 11 has an isolation protrusion 12 in the corresponding area on its upper surface. The isolation protrusion 12 fills the space between the two long rectangular contact pieces 21, serving to provide electrical isolation and improve structural strength.
[0032] The portion of the laser-etched plate antenna piece 2 located on the lower surface of the injection-molded isolator 1 is embedded in a geometric polygonal slot, which forms the lower part of the mounting slot 11. The structure of the laser-etched plate antenna piece 2 here is an externally exposed signal receiving board 22, designed to optimize the reception performance of 2.4 GHz signals.
[0033] Through the above structure, the signal receiving and signal transmission functions are physically separated, and a complete electromagnetic shielding cavity is formed by the injection-molded isolator 1 of the whole thickness, which can effectively isolate the electromagnetic interference received by the antenna during operation and ensure the performance of the antenna.
[0034] Example 2
[0035] Based on Embodiment 1, this embodiment further optimizes the antenna structure to improve mechanical stability and assembly accuracy.
[0036] like Figure 2 As shown, in this embodiment, the thickness of the plate-type laser-engraved antenna piece 2 is consistent with the depth of the mounting groove 11. This ensures that after the antenna piece is embedded in the mounting groove 11, its surface remains flush with the surface of the injection-molded isolator 1, which not only avoids protrusions or depressions, making the overall structure flatter, but also enhances the support strength of the antenna piece and prevents it from deforming under stress.
[0037] Meanwhile, the plate-type laser-engraved antenna sheet 2 also includes a connecting part 23. This connecting part 23 is embedded in the mounting groove 11 on the side of the injection-molded isolator 1, and is used to connect the rectangular contact piece 21 located on the upper surface and the exposed signal receiving board 22 located on the lower surface. Specifically, the joints between the connecting part 23 and the rectangular contact piece 21 and the exposed signal receiving board 22 are all rounded. This rounded corner design effectively eliminates stress concentration caused by right angles, greatly reducing the risk of the antenna sheet cracking or being damaged due to stress during injection molding and daily use, thus improving the reliability and service life of the product.
[0038] Example 3
[0039] Based on Embodiment 1 or 2, this embodiment provides a detailed design for the external structure and internal reinforcing ribs of the injection-molded isolator 1, aiming to improve the structural rigidity and ease of installation of the antenna.
[0040] like Figure 3 As shown, the main body of the injection-molded isolator 1 is a long rectangular piece, and the corner of its side closest to the exposed signal receiving board 22 is designed as a rounded corner 3. The plate-type laser-engraved antenna piece 2 is roughly distributed opposite to this rounded corner 3. This asymmetrical design helps with positioning and installation in a limited space.
[0041] Multiple reinforcing structures are fixedly installed on the upper surface of the injection-molded isolation component 1:
[0042] First side panel 16: Its side edge is flush with the side edge of the rounded corner edge 3.
[0043] The second side panel 13 has its side flush with the other side of the injection-molded isolator 1. Its height (i.e., the height difference between the upper surface and the upper surface of the injection-molded isolator 1) is designed to be one-third of the height of the first side panel 16. This stepped design helps to adapt to different installation environments.
[0044] The third side plate 15: its side is flush with the end side of the injection-molded isolator 1, and its end maintains a predetermined distance from the mounting groove 11 to avoid affecting the antenna performance.
[0045] To further enhance overall integrity, longitudinal reinforcing ribs 14 are fixedly installed on the upper surface, one end of which is connected to the second side plate 13, and the other end is connected to the first side plate 16. Simultaneously, a first horizontal reinforcing rib 18 is fixedly installed, one end of which is fixedly connected to the third side plate 15, and the other end is fixedly connected to the first side plate 16. These crisscrossing reinforcing ribs together form a robust framework, significantly improving the bending and torsional resistance of the injection-molded separator 1.
[0046] Example 4
[0047] This embodiment adds more mounting points to the third embodiment, enabling the antenna to adapt to more complex installation scenarios.
[0048] like Figure 1 As shown, within the space enclosed by the first side plate 16, the longitudinal stiffener 14, and the second side plate 13, a second horizontal stiffener 17, distributed parallel to the first horizontal stiffener 18, is fixedly installed. This second horizontal stiffener 17 roughly bisects the space, further enhancing the structural stability. Simultaneously, screw holes are provided on the injection-molded separator 1, which extend downwards into the aforementioned bisected space, providing a centrally located main mounting point.
[0049] Furthermore, to provide more diverse lateral mounting options, mounting ears 4 are fixedly installed on the side walls of the second side panel 13 and / or the third side panel 15. The sides of the mounting ears 4 are flush with the sides of the first side panel 16, thus maintaining the overall neat shape of the antenna. Each mounting ear 4 has symmetrically provided screw holes, allowing users to flexibly choose to install it in the main screw holes or fix it on the side mounting ears 4 according to the actual space inside the device, greatly improving the product's adaptability and installation convenience.
[0050] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A 2.4G antenna, characterized in that, It includes an injection-molded isolation component (1), which has a mounting groove (11) extending to the upper and lower surfaces respectively on one side, and a plate-type laser-engraved antenna piece (2) is inlaid in the mounting groove (11). The portion of the plate-type laser-engraved antenna sheet (2) located in the mounting groove (11) on the upper surface consists of symmetrically distributed long rectangular contact pieces (21), and the mounting groove (11) is provided with an isolation protrusion (12) that fills the space between the two long rectangular contact pieces (21). The mounting groove (11) on the lower surface is a geometric polygonal groove, and the plate laser-engraved antenna sheet (2) includes an externally exposed signal receiving board (22) embedded in the geometric polygonal groove.
2. A 2.4G antenna according to claim 1, characterized in that, The thickness of the plate-type laser-engraved antenna sheet (2) is the same as the thickness of the mounting groove (11).
3. A 2.4G antenna according to claim 1, characterized in that, The plate-type laser-engraved antenna sheet (2) includes a connecting part (23), which is embedded in the mounting groove (11) on the side of the injection-molded isolation part (1), and the connection with the long rectangular contact piece (21) and the externally exposed signal receiving board (22) is rounded.
4. A 2.4G antenna according to claim 1, characterized in that, The injection-molded isolation part (1) is a long rectangular part with one side corner rounded (3), and the plate-type laser-engraved antenna piece (2) is distributed opposite to the rounded (3).
5. A 2.4G antenna according to claim 4, characterized in that, The upper surface of the injection-molded isolation part (1) is provided with a first side plate (16) that is flush with one side of the rounded corner edge (3).
6. A 2.4G antenna according to claim 5, characterized in that, The upper surface of the injection-molded isolation component (1) is fixedly provided with a second side plate (13) that is flush with the side edge. The height difference between the upper surface of the second side plate (13) and the upper surface of the injection-molded isolation component (1) is one-third of the height difference between the upper surface of the first side plate (16) and the upper surface of the injection-molded isolation component (1).
7. A 2.4G antenna according to claim 6, characterized in that, The upper surface of the injection-molded isolation component (1) is fixedly provided with a longitudinal reinforcing rib (14) that is connected at one end to the second side plate (13) and at the other end to the first side plate (16). The upper surface of the injection-molded isolation component (1) is fixedly provided with a third side plate (15) that is flush with the side edge, and the end of the third side plate (15) is at a predetermined distance from the mounting groove (11). A first horizontal reinforcing rib (18) is fixedly provided on the longitudinal reinforcing rib (14). One end of the first horizontal reinforcing rib (18) is fixedly connected to the third side plate (15), and the other end is fixedly connected to the first side plate (16).
8. A 2.4G antenna according to claim 7, characterized in that, A second horizontal reinforcing rib (17) is fixedly installed between the first side plate (16) and the longitudinal reinforcing rib (14) and is distributed parallel to the first horizontal reinforcing rib (18). The second horizontal stiffener (17) is used to divide the space enclosed by the first side plate (16), the longitudinal stiffener (14) and the second side plate (13) into two equal parts; The injection-molded isolation component (1) has screw holes that connect to the space enclosed above.
9. A 2.4G antenna according to claim 8, characterized in that, The side wall of the second side plate (13) is fixedly installed with a mounting ear (4), the side of the mounting ear (4) is flush with the side of the first side plate (16), and screw holes are symmetrically opened on it.
10. A 2.4G antenna according to claim 8, characterized in that, The side wall of the third side plate (15) is fixedly installed with a mounting ear (4), the side of the mounting ear (4) is flush with the side of the first side plate (16), and screw holes are symmetrically opened on it.