Antenna structure and electronic product

Abstract

The utility model relates to the technical field of electronic product antennas, in particular to an antenna structure and an electronic product, the antenna structure comprises an antenna primary stage, an antenna secondary stage and an intermediate antenna, and the intermediate antenna is located between the antenna primary stage and the antenna secondary stage to form an array type antenna structure; the intermediate antenna is grounded through the matching structure. According to the antenna structure provided by the utility model, the intermediate antenna has no excitation signal, and when the antenna main stage and the antenna stage apply the excitation signal to work, the intermediate antenna generates resonance with the working frequency of the antenna main stage and the working frequency of the antenna stage respectively, so that the near-field coupling of the antenna main stage and the antenna stage is reduced, and the purpose of isolation is achieved. According to the technical scheme of the utility model, the intermediate antenna is arranged, so that the antenna primary level and the antenna secondary level have higher isolation degree under the condition that the antenna is suitable for being used in a small space, mutual interference between the antennas is effectively reduced, the wireless transmission signal quality is improved, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic product antennas, in particular to an antenna structure and an electronic product. Background Art

[0002] Laptops are developing towards narrow-edge screens, ultra-thinness, and high performance. Therefore, the space left for antennas inside the laptop shell is getting smaller and smaller. The small space structure makes the distance between the main and secondary antennas closer, which in turn leads to lower antenna isolation. The lower antenna isolation will cause mutual interference between the main and secondary antennas, reduce the transmission rate of wireless signals, and affect user experience.

[0003] In response to the above problems, the current solutions include adjusting the distance between the main antenna and the stages, or adding isolation branches between the main antenna and the stages; however, in order to ensure sufficient spacing, the main antenna and the stages are placed in different positions, which requires a larger antenna space. When designing a laptop computer, it is necessary to plan and reserve antenna space in advance. However, whether it is the display end or the system end of the laptop computer, the space reserved for the antenna is getting smaller and smaller, which cannot meet the installation requirements.

[0004] In the method of adding an isolation branch between the main antenna and the sub-stage, an isolation branch is added between the main antenna and the sub-stage to improve the antenna isolation. However, in a small space installation environment, improving the antenna isolation by adding an isolation branch can no longer meet the antenna isolation requirement, so that the antennas still interfere with each other. Utility Model Content

[0005] In order to solve at least the above technical problems existing in the prior art, the utility model provides an antenna structure and an electronic product.

[0006] On one hand, the utility model provides an antenna structure, including an antenna main stage, antenna stages and an intermediate antenna, wherein the intermediate antenna is located between the antenna main stage and the antenna stages, thereby forming an array antenna structure; the intermediate antenna is grounded through a matching structure.

[0007] In some embodiments, the matching structure includes a matching element; the matching element includes a resistor, a capacitor, or an inductor.

[0008] In some embodiments, the matching structure includes a matching circuit; the matching circuit includes at least one of a resistor, a capacitor, or an inductor.

[0009] In some embodiments, a carrier structure is also included, and the antenna main stage, the intermediate antenna and the antenna stages are arranged on the carrier structure; the carrier structure is a bracket or a circuit board.

[0010] In some embodiments, the carrier structure is in a rectangular shape; the antenna main stage, the middle antenna and the antenna stages are arranged along the length direction of the carrier structure.

[0011] In some embodiments, the length L of the carrier structure is in the range of 60 mm ≤ L ≤ 80 mm.

[0012] Another aspect of the utility model further provides an electronic product, comprising the above antenna structure.

[0013] In some embodiments, it includes a display end and a system end; the antenna structure is arranged at the display end, the system end and / or the connection position between the display end and the system end.

[0014] The utility model provides an antenna structure and an electronic product, wherein an intermediate antenna for isolation is added between the antenna main stage and the antenna stage, thereby forming an array antenna structure, and the intermediate antenna is grounded at the antenna feed through a matching structure. The intermediate antenna has no excitation signal. When the antenna main stage and the antenna stage are working with an excitation signal applied, the intermediate antenna resonates with the working frequencies of the antenna main stage and the antenna stage, respectively, thereby reducing the near-field coupling of the antenna main stage and the antenna stage, and achieving the purpose of isolation. The technical solution of the utility model, by setting the intermediate antenna, has a higher degree of isolation between the antenna main stage and the antenna stage when it is suitable for use in a small space, effectively reduces mutual interference between antennas, improves the quality of wireless transmission signals, and thus improves user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, wherein:

[0016] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0017] Figure 1 A front view of the antenna structure provided by an embodiment of the utility model;

[0018] Figure 2 A structural schematic diagram of the installation state of the antenna structure provided in an embodiment of the utility model.

[0019] In the figure:

[0020] 10: Antenna structure; 20: System end;

[0021] 11: Antenna main stage; 12: Antenna stage; 13: Intermediate antenna; 14: Matching structure; 15: Carrier structure. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] An embodiment of the utility model provides an antenna structure, which includes an antenna main stage, an antenna stage and an intermediate antenna. The intermediate antenna is located between the antenna main stage and the antenna stage, thereby forming an array antenna structure. The antenna main stage and the antenna stage are isolated by the intermediate antenna, and the antenna isolation is effectively increased without increasing the space occupied by the antenna, thereby reducing the mutual interference between the antenna main stage and the antenna stage.

[0024] The antenna structure and electronic product provided by the embodiments of the present invention, as well as the various structures, connection relationships and positional relationships of the various structures are described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the middle antenna 13 is located between the antenna main stage 11 and the antenna stage 12, thereby forming an array antenna structure 10; in the array antenna structure 10, the isolation of the antenna structure 10 is increased by the middle antenna 13, thereby effectively reducing the mutual interference between the antennas.

[0026] The middle antenna 13 is grounded through the matching structure 14. Specifically, the excitation port of the middle antenna 13 is connected to the ground through the matching structure 14. For example, the matching structure 14 includes a separate matching element, and the matching element includes a resistor, a capacitor, or an inductor, etc.; or, for example, the matching structure 14 includes a matching circuit, and the ground is connected through the matching circuit; the matching circuit includes at least one of a resistor, a capacitor, or an inductor, and the number of resistors, capacitors, or inductors in the matching circuit can be one or more, and multiple resistors, capacitors, or inductors form a matching circuit of a series-parallel structure.

[0027] Taking the matching structure 14 as a single resistor as an example, the resistance of the resistor is 5 ohms, the middle antenna 13 is connected to the ground through the resistor at the excitation port, and the excitation signal is applied to the antenna main stage 11 and the antenna stage 12 respectively. It can be seen from the simulation results that when the antenna main stage 11 applies the excitation signal, the surface current of the antenna structure 10 is mainly concentrated on the antenna main stage 11 and the middle antenna 13, and when the antenna stage 12 applies the excitation signal, the surface current of the antenna structure 10 is mainly concentrated on the antenna stage 12 and the middle antenna 13. It can be seen from this that the above-mentioned array antenna, that is, adding the middle antenna 13 between the antenna main stage 11 and the antenna stage 12, and adding the matching structure 14 to the ground at the feeding point of the middle antenna 13, the antenna structure 10 can effectively reduce the near-field coupling between the antenna main stage 11 and the antenna stage 12.

[0028] For example, the isolation of the array antenna structure 10 can be improved by 8 dBm in the 2.4 GHz frequency band.

[0029] In the embodiment of the utility model, a carrier structure 15 is further included, on which the antenna main stage 11, the intermediate antenna 13 and the antenna stage 12 are arranged; the carrier structure 15 is a bracket or a circuit board. The carrier structure 15 through which the antenna structure 10 passes is arranged in the installation space, and the carrier structure 15 is an independent structure, and the size of the carrier structure 15 determines the size of the antenna structure 10.

[0030] For example, the carrier structure 15 is in the shape of a rectangular parallelepiped; the antenna main stage 11, the middle antenna 13 and the antenna stage 12 are arranged along the length direction of the carrier structure 15, and the length of the carrier structure 15 is the length of the antenna structure 10. For example, the range of the length L is: 60mm≤L≤80mm, and the range of the width W of the carrier structure 15 is: 8mm≤W≤12mm, and the thickness D is about 0.4 mm.

[0031] In the embodiment of the utility model, the antenna type of the antenna main stage 11, the intermediate antenna 13 and the antenna stage 12 can be a PCB antenna or an FPC antenna, etc., and the specific structural form of the antenna main stage 11, the intermediate antenna 13 and the antenna stage 12 is not limited.

[0032] The embodiment of the utility model further provides an electronic product, including the above antenna structure 10. For example, the electronic product is a laptop computer, a tablet computer or a mobile terminal, etc., by providing the above antenna structure 10, the isolation of the antenna structure 10 is improved through the intermediate antenna 13, and the mutual interference between the antenna main stage 11 and the antenna stage 12 is effectively reduced, thereby improving the quality of the wireless transmission signal, thereby improving the user experience.

[0033] Taking a laptop computer as an example, the laptop computer includes a display terminal and a system terminal 20; the antenna structure 10 is disposed at the display terminal, the system terminal 20 and / or the connection position between the display terminal and the system terminal 20. The specific position of the antenna structure 10 is not limited, and it can satisfy the design layout of the array decoupling solution.

[0034] For example, according to the structural design of the laptop computer, the antenna structure 10 can be arranged at the top of the laptop computer display terminal, such as the antenna structure 10 is located on both sides of the camera module; or, for example, Figure 2 As shown, a position for the antenna structure 10 is reserved at the front end of the system end 20 of the notebook computer. The antenna structure 10 is arranged at the front end of the system end 20 and connected to the mainboard, such as the antenna structure 10 is located on one side of the touch module; or, for example, the display end and the system end 20 are rotatably connected by at least two rotating shafts, and the outer side of the rotating shaft is covered with a rotating shaft cover, and the antenna structure 10 can be placed in the rotating shaft cover.

[0035] The utility model provides an antenna structure 10 and an electronic product, wherein an intermediate antenna 13 for isolation is added between the antenna main stage 11 and the antenna stage 12, thereby forming an array antenna structure 10, and the intermediate antenna 13 is grounded at the antenna feed through a matching structure 14. The intermediate antenna 13 has no excitation signal. When the antenna main stage 11 and the antenna stage 12 are applied with an excitation signal to work, the intermediate antenna 13 resonates with the working frequencies of the antenna main stage 11 and the antenna stage 12, respectively, thereby reducing the near-field coupling of the antenna main stage 11 and the antenna stage 12, and achieving the purpose of isolation. The technical solution of the utility model, by setting the intermediate antenna 13, when used in a small space, the antenna main stage 11 and the antenna stage 12 have a higher degree of isolation, effectively reducing mutual interference between antennas, improving the quality of wireless transmission signals, and thus improving user experience.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An antenna structure, characterized in that: It comprises an antenna main stage (11), an antenna stage (12) and an intermediate antenna (13), wherein the intermediate antenna (13) is located between the antenna main stage (11) and the antenna stage (12), thereby forming an array antenna structure (10); The intermediate antenna (13) is grounded via a matching structure (14).

2. The antenna structure according to claim 1, characterized in that: The matching structure (14) includes a matching element; The matching element includes a resistor, a capacitor or an inductor.

3. The antenna structure according to claim 1, characterized in that: The matching structure (14) includes a matching circuit; The matching circuit includes at least one of a resistor, a capacitor or an inductor.

4. The antenna structure according to any one of claims 1 to 3, characterized in that: It also includes a carrier structure (15), on which the antenna main stage (11), the intermediate antenna (13) and the antenna stage (12) are arranged; The carrier structure (15) is a bracket or a circuit board.

5. The antenna structure according to claim 4, characterized in that: The carrier plate structure (15) is in the shape of a rectangular parallelepiped; The antenna main stage (11), the intermediate antenna (13) and the antenna stage (12) are arranged along the length direction of the carrier structure (15).

6. The antenna structure according to claim 5, characterized in that: The length L of the carrier plate structure (15) is in the range of 60 mm ≤ L ≤ 80 mm.

7. An electronic product, characterized in that: It comprises the antenna structure (10) according to any one of claims 1 to 6.

8. The electronic product according to claim 7, characterized in that: It includes a display terminal and a system terminal (20); The antenna structure (10) is arranged at the display end, the system end (20) and / or a connection position between the display end and the system end (20).

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