Multiband internal antenna of mobile terminal and mobile terminal

Abstract

The utility model discloses a kind of multi-band built-in antenna of mobile terminal and mobile terminal, multi-band built-in antenna includes high frequency part, low frequency part, resonance judging part;High frequency part, resonance judging part and low frequency part integrally formed;High frequency part, low frequency part about resonance judging part structure symmetry;High frequency part includes first inverted U type antenna part, first transverse transmission part;First inverted U type antenna part and first transverse transmission part integrally formed, form half-enclosing structure;Low frequency part includes second inverted U type antenna part, second transverse transmission part;Second inverted U type antenna part and second transverse transmission part integrally formed, form half-enclosing structure.Implementation this application, improve antenna gain, increase antenna bandwidth, support WIFI three-frequency FPC antenna, solve the problem that the antenna bandwidth of built-in antenna of existing mobile terminal cannot satisfy the demand of three-frequency antenna high gain.

Description

Technical Field

[0001] This utility model relates to the field of built-in antenna technology, and in particular to a multi-band built-in antenna for a mobile terminal and the mobile terminal itself. Background Technology

[0002] With the development of technology, wireless terminal devices have become indispensable tools for people's lives and work. Wireless communication products are increasingly trending towards thinner and smaller designs. However, with the diversification of product functions, more and more components are crammed into narrow product spaces, leaving less and less space for antennas. The performance of built-in antennas is mainly affected by environmental factors such as antenna area, antenna clearance, and antenna height. Therefore, how to make full use of the already limited space in mobile terminals has always been a goal pursued by the industry.

[0003] Currently, the antennas of conventional mobile terminals on the market are implemented on the bottom shell. Due to space limitations, the antenna area is also limited, which restricts the antenna bandwidth and cannot meet the high gain requirements of WIFI2.4, WIFI5, and WIFI6 tri-band antennas. Utility Model Content

[0004] The bandwidth of the built-in antenna in existing mobile terminals cannot meet the high gain requirements of tri-band antennas.

[0005] To address the aforementioned issues, a multi-band built-in antenna for a mobile terminal and the mobile terminal itself are proposed. By incorporating a high-frequency section, a low-frequency section, and a resonance judgment section, and by integrating these sections into a single unit with structural symmetry about the resonance judgment section, the high-frequency section is designed as a semi-enclosed structure with a first inverted U-shaped antenna section and a first lateral transmission section integrated into one unit. Similarly, the low-frequency section is designed as a semi-enclosed structure with a second inverted U-shaped antenna section and a second lateral transmission section integrated into one unit. This FPC antenna supports three Wi-Fi bands, improving antenna gain and increasing antenna bandwidth. This solves the problem that the antenna bandwidth of existing built-in antennas in mobile terminals cannot meet the high-gain requirements of tri-band antennas.

[0006] In a first aspect, a multi-band built-in antenna for a mobile terminal includes:

[0007] High-frequency section;

[0008] Low-frequency range;

[0009] Resonance determination unit;

[0010] The high-frequency section, the resonance judgment section, and the low-frequency section are integrally formed;

[0011] The high-frequency section and the low-frequency section are structurally symmetrical about the resonance judgment section.

[0012] In conjunction with the multi-band built-in antenna of the mobile terminal described in this utility model, in a first possible embodiment, the high-frequency section includes:

[0013] First inverted U-shaped antenna section;

[0014] First transverse transmission section;

[0015] The first inverted U-shaped antenna section and the first transverse transmission section are integrally formed to form a semi-enclosed structure.

[0016] In conjunction with the first possible embodiment of this utility model, in the second possible embodiment, the multi-band built-in antenna of the mobile terminal further includes:

[0017] First feed point;

[0018] The first feed point is located at the connection between the first inverted U-shaped antenna section and the first lateral transmission section.

[0019] In conjunction with the second possible embodiment of this utility model, in the third possible embodiment, the low-frequency section includes:

[0020] Second inverted U-shaped antenna section;

[0021] Second transverse transmission section;

[0022] The second inverted U-shaped antenna section and the second lateral transmission section are integrally formed to form a semi-enclosed structure.

[0023] In conjunction with the third possible implementation of this utility model, in the fourth possible implementation, the resonance judgment part is a U-shaped structure, and the two ends of the U-shape of the resonance judgment part are integrally formed with the bottom of the first transverse transmission part and the bottom of the second transverse transmission part, respectively.

[0024] In conjunction with the fourth possible implementation of this utility model, and in the fifth possible implementation, the multi-band built-in antenna of the mobile terminal further includes:

[0025] Second feed point;

[0026] The second feed point is located at the connection between the second transverse transmission section and the resonance judgment section.

[0027] In conjunction with the multi-band built-in antenna of the mobile terminal described in this utility model, in a sixth possible embodiment, the frequency range of the high-frequency section is 5.0-6.0 GHz.

[0028] In the seventh possible embodiment of the multi-band built-in antenna of the mobile terminal described in this utility model, the frequency range of the low-frequency part is 2.40-2.48 GHz.

[0029] In the eighth possible embodiment of the multi-band built-in antenna of the mobile terminal described in this utility model, the multi-band built-in antenna is an FPC structure.

[0030] In the ninth possible embodiment of the multi-band built-in antenna of the mobile terminal described in this utility model, the size of the multi-band built-in antenna is 30*20*1mm.

[0031] In a tenth possible embodiment of the multi-band built-in antenna of the mobile terminal described in this utility model, the multi-band built-in antenna is grounded through a single pole via the mobile terminal.

[0032] In a second aspect, a mobile terminal includes a multi-band built-in antenna of the mobile terminal described in the first aspect.

[0033] The multi-band built-in antenna and mobile terminal described in this utility model, by setting a high-frequency section, a low-frequency section, and a resonance judgment section, integrates the high-frequency section, the resonance judgment section, and the low-frequency section, making the high-frequency section and the low-frequency section structurally symmetrical about the resonance judgment section. The high-frequency section is designed as a semi-enclosed structure in which a first inverted U-shaped antenna section and a first lateral transmission section are integrally formed, and the low-frequency section is designed as a semi-enclosed structure in which a second inverted U-shaped antenna section and a second lateral transmission section are integrally formed. This supports a tri-band FPC antenna for Wi-Fi, improves antenna gain, increases antenna bandwidth, and solves the problem that the antenna bandwidth of the built-in antenna of existing mobile terminals cannot meet the high gain requirements of tri-band antennas. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of the multi-band built-in antenna of the mobile terminal in this utility model;

[0036] Components and their serial numbers:

[0037] 100 – High-frequency section, 110 – First inverted U-shaped antenna section, 120 – First lateral transmission section, 200 – Low-frequency section, 210 – Second inverted U-shaped antenna section, 220 – Second lateral transmission section, 300 – Resonance judgment section, 400 – First feed point, 500 – Second feed point. Detailed Implementation

[0038] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this utility model.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0041] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0043] The bandwidth of the built-in antenna in existing mobile terminals cannot meet the high gain requirements of tri-band antennas.

[0044] To address the above issues, a multi-band built-in antenna for a mobile terminal and the mobile terminal itself are proposed.

[0045] Firstly, a multi-band built-in antenna for a mobile terminal, such as... Figure 1 , Figure 1This is a schematic diagram of the multi-band built-in antenna structure of the mobile terminal of this utility model; it includes a high-frequency section 100, a low-frequency section 200, and a resonance judgment section 300; the high-frequency section 100, the resonance judgment section 300, and the low-frequency section 200 are integrally formed; the high-frequency section 100 and the low-frequency section 200 are structurally symmetrical about the resonance judgment section 300. The high-frequency section 100 includes a first inverted U-shaped antenna section 110 and a first lateral transmission section 120; the first inverted U-shaped antenna section 110 and the first lateral transmission section 120 are integrally formed to form a semi-enclosed structure. The low-frequency section 200 includes a second inverted U-shaped antenna section 210 and a second lateral transmission section 220; the second inverted U-shaped antenna section 210 and the second lateral transmission section 220 are integrally formed to form a semi-enclosed structure.

[0046] In one possible implementation, the multi-band built-in antenna of the mobile terminal further includes a first feed point 400; the first feed point 400 is disposed at the connection between the first inverted U-shaped antenna portion 110 and the first lateral transmission portion 120.

[0047] Implementing the embodiments of this application improves antenna gain, increases antenna bandwidth, supports FPC antennas for three-band Wi-Fi, and solves the problem that the antenna bandwidth of the built-in antenna of existing mobile terminals cannot meet the high gain requirements of tri-band antennas.

[0048] In one possible implementation, the resonance determination part 300 has a U-shaped structure, and the two ends of the U-shape of the resonance determination part 300 are integrally formed with the bottom of the first transverse transmission part 120 and the bottom of the second transverse transmission part 220, respectively.

[0049] In one possible implementation, the multi-band built-in antenna of the mobile terminal further includes a second feed point 500; the second feed point 500 is disposed at the connection between the second lateral transmission section 220 and the resonance determination section 300.

[0050] In this embodiment, the product back shell of the mobile terminal is effectively combined with the low-frequency section 200 via the second feed point 500.

[0051] In one possible implementation, the multi-band built-in antenna uses a single-pole common ground configuration via the mobile terminal. By employing a single-pole common ground configuration, the internal three-dimensional space of the terminal product is fully utilized.

[0052] In one possible implementation, the frequency range of the high-frequency section 100 is 5.0-6.0 GHz.

[0053] In one possible implementation, the frequency range of the low-frequency section 200 is 2.40-2.48 GHz.

[0054] In one possible implementation, the multi-band built-in antenna is an FPC structure.

[0055] In one possible implementation, the dimensions of the multi-band built-in antenna are 30*20*1mm.

[0056] In this embodiment, the resonance judgment unit 300 can determine the operating frequency band range of the signal, thereby selecting a suitable frequency band to support a tri-band Wi-Fi FPC antenna. The antenna measures 30*20*1mm and boasts a peak gain of up to 3.5dbi and a peak efficiency of up to 65% in the 2.4G band, and a peak gain of 5.5dbi and a peak efficiency of 70% in the 5G band. It exhibits high performance across 2.4G, 5G, and even 6G bands, making it suitable for tri-band Wi-Fi (2.4G, 5.8G, and 6G) ​​and even Wi-Fi 6 product applications. This overcomes the technical problem in existing technologies where Wi-Fi terminal antennas cannot meet the high-gain requirements of multi-band 2.4G, 5G, and 6G tri-band antennas.

[0057] In this embodiment, by setting a high-frequency section 100, a low-frequency section 200, and a resonance judgment section 300, the high-frequency section 100, the resonance judgment section 300, and the low-frequency section 200 are integrally formed and the high-frequency section 100 and the low-frequency section 200 are structurally symmetrical about the resonance judgment section 300. The high-frequency section 100 is designed as a semi-enclosed structure integrally formed by a first inverted U-shaped antenna section 110 and a first lateral transmission section 120, and the low-frequency section 200 is designed as a semi-enclosed structure integrally formed by a second inverted U-shaped antenna section 210 and a second lateral transmission section 220. This supports a tri-band FPC antenna for Wi-Fi, improves antenna gain, increases antenna bandwidth, and solves the problem that the antenna bandwidth of the built-in antenna of existing mobile terminals cannot meet the high gain requirements of tri-band antennas.

[0058] In a second aspect, a mobile terminal includes a multi-band built-in antenna of the mobile terminal of the first aspect.

[0059] The multi-band built-in antenna of the mobile terminal and the mobile terminal implementing this utility model, by setting a high-frequency part 100, a low-frequency part 200 and a resonance judgment part 300, the high-frequency part 100, the resonance judgment part 300 and the low-frequency part 200 are integrally formed and the high-frequency part 100 and the low-frequency part 200 are structurally symmetrical about the resonance judgment part 300. The high-frequency part 100 is designed as a semi-enclosed structure with the first inverted U-shaped antenna part 110 and the first lateral transmission part 120 integrally formed, and the low-frequency part 200 is designed as a semi-enclosed structure with the second inverted U-shaped antenna part 210 and the second lateral transmission part 220 integrally formed. It supports a three-band FPC antenna for WIFI, improves antenna gain, increases antenna bandwidth, and solves the problem that the antenna bandwidth of the built-in antenna of the existing mobile terminal cannot meet the high gain requirements of the three-band antenna.

[0060] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-band built-in antenna for a mobile terminal, characterized in that, include: High-frequency section; Low-frequency range; Resonance determination unit; The high-frequency section, the resonance judgment section, and the low-frequency section are integrally formed; The high-frequency section and the low-frequency section are structurally symmetrical about the resonance judgment section; The high-frequency section includes: First inverted U-shaped antenna section; First transverse transmission section; The first inverted U-shaped antenna portion and the first transverse transmission portion are integrally formed to create a semi-enclosed structure; The low-frequency component includes: Second inverted U-shaped antenna section; Second transverse transmission section; The second inverted U-shaped antenna section and the second lateral transmission section are integrally formed to form a semi-enclosed structure.

2. The multi-band built-in antenna of the mobile terminal according to claim 1, characterized in that, The multi-band built-in antenna of the mobile terminal also includes: First feed point; The first feed point is located at the connection between the first inverted U-shaped antenna section and the first lateral transmission section.

3. The multi-band built-in antenna of the mobile terminal according to claim 2, characterized in that, The resonance judgment part has a U-shaped structure, and its two ends are integrally formed with the bottom of the first transverse transmission part and the bottom of the second transverse transmission part, respectively.

4. The multi-band built-in antenna of the mobile terminal according to claim 3, characterized in that, The multi-band built-in antenna of the mobile terminal also includes: Second feed point; The second feed point is located at the connection between the second lateral transmission section and the resonance judgment section.

5. The multi-band built-in antenna of the mobile terminal according to any one of claims 1-4, characterized in that, The frequency range of the high-frequency section is 5.0-6.0 GHz.

6. The multi-band built-in antenna of the mobile terminal according to any one of claims 1-4, characterized in that, The frequency range of the low-frequency section is 2.40-2.48 GHz.

7. The multi-band built-in antenna of the mobile terminal according to any one of claims 1-4, characterized in that, The multi-band built-in antenna has an FPC structure.

8. The multi-band built-in antenna of the mobile terminal according to any one of claims 1-4, characterized in that, The dimensions of the multi-band built-in antenna are 30*20*1mm.

9. The multi-band built-in antenna of the mobile terminal according to any one of claims 1-4, characterized in that, The multi-band built-in antenna is grounded via a mobile terminal.

10. A mobile terminal, characterized in that, Includes the multi-band built-in antenna of the mobile terminal as described in any one of claims 1-9.

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