Terminal LOOP frame antenna and mobile terminal

Abstract

The utility model provides a terminal LOOP frame antenna, the terminal LOOP frame antenna comprises a mainboard, a first radiation assembly, a second radiation assembly and an isolation assembly, the first radiation assembly and the second radiation assembly are both connected with the mainboard, the first radiation assembly and the second radiation assembly are symmetrically arranged above the mainboard, and the isolation assembly is connected with the mainboard. The isolation assembly is arranged between the first radiation assembly and the second radiation assembly; the first radiation assembly comprises a first radiation arm, a first slot, a first feeding point and a first grounding point, and the second radiation assembly comprises a second radiation arm, a second slot, a second feeding point and a second grounding point; and the first slot and the second slot are both formed in the main plate. The terminal LOOP frame antenna provided by the utility model can effectively solve the problems of poor performance, appearance and texture requirements and poor isolation of general terminal equipment, and the antenna is simple in overall design and reduces the production cost.

Description

Technical Field

[0001] The utility model relates to the field of communication technologies, and particularly to a terminal LOOP frame antenna and a mobile terminal. Background Art

[0002] With the continuous development of the construction of 5G base stations, the frequency bands supported by communication terminals are also continuously expanding. Nowadays, mobile phones are common mobile terminal products used by people. With the continuous development of technology, mobile phones inevitably use 5G communication technology. This requires an increase in the number of antennas in mobile phones. However, the space in mobile phones is limited, and the bandwidth of antennas is also restricted by space. Therefore, the frequency bands covered by antennas are limited, making it difficult to achieve the bandwidth radiation of antennas, and the isolation between antennas is poor.

[0003] Traditional antennas of mobile terminal devices have problems such as requiring a large antenna clearance area, general efficiency, complex design, poor isolation, difficult matching and debugging, poor consistency, and poor gain.

[0004] In view of this, it is indeed necessary for the utility model to propose a terminal LOOP frame antenna and a mobile terminal. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a terminal LOOP frame antenna, which can effectively solve the problems of the performance, appearance, texture requirements and poor isolation of general terminal devices, and the overall design of the antenna is simple, reducing the production cost.

[0006] To solve the above technical problems, the utility model provides a terminal LOOP frame antenna. The terminal LOOP frame antenna includes a main board, a first radiation component, a second radiation component and an isolation component. The first radiation component and the second radiation component are both connected to the main board. The first radiation component and the second radiation component are symmetrically arranged above the main board. The isolation component is arranged between the first radiation component and the second radiation component. The first radiation component includes a first radiation arm, a first slot, a first feeding point and a first grounding point. The second radiation component includes a second radiation arm, a second slot, a second feeding point and a second grounding point. The first slot and the second slot are both opened on the main board.

[0007] As a further improvement of the utility model, the first radiation arm and the second radiation arm are symmetrically arranged.

[0008] As a further improvement of the present utility model, the first radiation arm and the second radiation arm are both configured as U-shaped radiation stubs. The first feeding point and the second grounding point are respectively arranged at two ends of the first radiation arm and are electrically connected to the first radiation arm. The second feeding point and the second grounding point are respectively arranged at two ends of the second radiation arm and are electrically connected to the second radiation arm.

[0009] As a further improvement of the present utility model, two ends of the first radiation arm are connected to the main board, and two ends of the second radiation arm are connected to the main board.

[0010] As a further improvement of the present utility model, the isolation component is arranged between the first radiation arm and the second radiation arm and is connected to the main board.

[0011] As a further improvement of the present utility model, the first slot and the second slot are both arranged on the main board.

[0012] As a further improvement of the present utility model, the shapes of the first slot and the second slot are both configured as L-shaped.

[0013] As a further improvement of the present utility model, the openings of the first slot and the second slot are arranged in opposite directions.

[0014] As a further improvement of the present utility model, both the first slot and the second slot have a first end and a second end. The first end is grounded, and the second end is a free end.

[0015] The purpose of the present utility model is to provide a mobile terminal to better apply the above terminal LOOP frame antenna.

[0016] To solve the above technical problems, the present utility model provides a mobile terminal, and the mobile terminal includes the aforementioned terminal LOOP frame antenna.

[0017] The present utility model proposes a terminal LOOP frame antenna. The terminal LOOP frame antenna includes a main board, a first radiation component, a second radiation component, and an isolation component. Both the first radiation component and the second radiation component are connected to the main board. The first radiation component and the second radiation component are symmetrically arranged above the main board. The isolation component is arranged between the first radiation component and the second radiation component. The first radiation component includes a first radiation arm, a first slot, a first feeding point, and a first grounding point. The second radiation component includes a second radiation arm, a second slot, a second feeding point, and a second grounding point. The first slot and the second slot are both opened on the main board. The terminal LOOP frame antenna of the present utility model can effectively solve the problems of general terminal devices in terms of performance, appearance, texture requirements, and poor isolation. Moreover, the overall design of the antenna is simple, reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of the terminal LOOP frame antenna of the present utility model.

[0019] Figure 2 FIG. is a simulation diagram of the S11 parameter of the terminal LOOP frame antenna of the present utility model.

[0020] Figure 3 FIG. is a simulation diagram of the S11 parameter of a traditional antenna.

[0021] Among them, the descriptions of each reference numeral are as follows:

[0022] Isolation component 100, first radiation arm 200, second radiation arm 300, main board 400, first slot 201, second slot 301, first feeding point Feed1, first grounding point GND1, second feeding point Feed2, second grounding point GND2. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further elaborates on the terminal LOOP frame antenna proposed by the present utility model in conjunction with the drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model. In addition, the structures shown in the drawings are often part of the actual structures. In particular, the focuses to be shown in each drawing are different, and sometimes different scales are used.

[0024] The present utility model provides a terminal LOOP frame antenna. This terminal LOOP frame antenna is applied to mobile terminals, including mobile electronic products such as mobile phones, tablets, computers, and laptops. Taking a mobile phone terminal as an example below, this terminal LOOP frame antenna is arranged at the top position of the mobile phone.

[0025] AsFigure 1 As shown in the figure, specifically, the terminal LOOP frame antenna includes a main board 400, a first radiation component, a second radiation component, and an isolation component 100. The first radiation component and the second radiation component are both connected to the main board 400. The first radiation component and the second radiation component are symmetrically arranged above the main board 400. The isolation component 100 is arranged between the first radiation component and the second radiation component. The first radiation component includes a first radiation arm 200, a first slot 201, a first feeding point Feed1, and a first grounding point GND1. The second radiation component includes a second radiation arm 300, a second slot 301, a second feeding point Feed2, and a second grounding point GND2. The first slot 201 and the second slot 301 are both opened on the main board 400.

[0026] With such a setting, the terminal LOOP frame antenna of the present utility model can effectively solve the problems of general terminal devices' requirements for performance, appearance, texture, and poor isolation. Moreover, the overall design of the antenna is simple, reducing the production cost. Traditional mobile device antennas require a large antenna clearance area, have average efficiency, complex designs, and difficult matching and debugging, resulting in problems such as poor isolation and gain of the antenna. With the continuous development of mobile devices and users' demands for the appearance, performance, and texture of mobile devices, it is an inevitable trend for mobile devices to adopt metal frames.

[0027] Furthermore, the first radiation arm 200 and the second radiation arm 300 are symmetrically arranged. The first radiation arm 200 and the second radiation arm 300 are both configured as U-shaped radiation branches. The first feeding point Feed1 and the second grounding point GND2 are respectively arranged at both ends of the first radiation arm 200 and are electrically connected to the first radiation arm 200. The second feeding point Feed2 and the second grounding point GND2 are respectively arranged at both ends of the second radiation arm 300 and are electrically connected to the second radiation arm 300. Both ends of the first radiation arm 200 are connected to the main board 400. Both ends of the second radiation arm 300 are connected to the main board 400. The isolation component 100 is arranged between the first radiation arm 200 and the second radiation arm 300 and is connected to the main board 400. The first slot 201 and the second slot 301 are both opened on the main board 400. The shapes of the first slot 201 and the second slot 301 are both configured as L shapes. The openings of the first slot 201 and the second slot 301 are arranged back to back. Both the first slot 201 and the second slot 301 have a first end and a second end. The first end is grounded, and the second end is a free end.

[0028] That is to say, the first radiation arm 200 and the second radiation arm 300 can be configured as the metal frame at the top of the terminal. It further includes an isolation component 100, a first feeding point Feed1, a second feeding point Feed2, a first grounding point GND1, and a second grounding point GND2. If the first radiation arm 200 and the second radiation arm 300 form a loop through matching and grounding points to form a simple loop antenna, this way will cause a large mutual coupling between the antennas, resulting in very poor isolation of the antennas and difficult debugging of the matching network. In the present invention, a first slot 201 is opened on the main board 400 between the first feeding point Feed1 and the first grounding point GND1, and a second slot 301 is opened on the main board 400 between the second feeding point Feed2 and the second grounding point GND2, so as to change the 5G antenna frequency band and its radiation hot spot. The isolation ground component main board 400 can change the 2.4G and GPS radiation hot spots. After introducing the isolation ground component, the first slot 201 and the second slot 301, due to the change of the transmission impedance on the path, the transmission between the two ports is blocked, improving the coupling strength between the bottom surface and the near field of the overall antenna, and significantly improving the S21 isolation, as Figure 2 and as Figure 3 shown. It can be seen that the isolation of the co-frequency mirror antenna of the traditional antenna is the worst. The isolation between 2.4G and 5G in the traditional antenna is only -15 dB, as Figure 2 shown. The isolation of the antenna of the present invention is below -20 dB at 2.4G, and the peak can reach about -30 dB. The isolation at 5G is below -20 dB, and the peak at about 5.8G is about -35 dB.

[0029] The terminal LOOP frame antenna of the present utility model further includes a matching network, which includes a first matching network and a second matching network. The first matching network 202 is electrically connected to the first radiating arm, and the second matching network 302 is electrically connected to the second radiating arm. This matching network is used to improve the difficulty of matching debugging, and its actual matching value can be appropriately changed according to different environments. In summary, the present utility model proposes a terminal LOOP frame antenna, which includes a main board 400, a first radiating component, a second radiating component, and an isolation component 100. Both the first radiating component and the second radiating component are connected to the main board 400. The first radiating component and the second radiating component are symmetrically arranged above the main board 400, and the isolation component 100 is arranged between the first radiating component and the second radiating component. The first radiating component includes a first radiating arm 200, a first slot 201, a first feeding point Feed1, and a first grounding point GND1. The second radiating component includes a second radiating arm 300, a second slot 301, a second feeding point Feed2, and a second grounding point GND2. The first slot 201 and the second slot 301 are both opened on the main board 400. The terminal LOOP frame antenna of the present utility model can effectively solve the problems of general terminal devices' requirements for performance, appearance, texture, and poor isolation, and the overall design of the antenna is simple, reducing the production cost.

[0030] In summary, the present utility model proposes a terminal LOOP frame antenna, which includes a main board, a first radiating component, a second radiating component, and an isolation component. Both the first radiating component and the second radiating component are connected to the main board. The first radiating component and the second radiating component are symmetrically arranged above the main board, and the isolation component is arranged between the first radiating component and the second radiating component. The first radiating component includes a first radiating arm, a first slot, a first feeding point, and a first grounding point. The second radiating component includes a second radiating arm, a second slot, a second feeding point, and a second grounding point. The first slot and the second slot are both opened on the main board. The terminal LOOP frame antenna of the present utility model can effectively solve the problems of general terminal devices' requirements for performance, appearance, texture, and poor isolation, and the overall design of the antenna is simple, reducing the production cost.

[0031] It should be noted that the various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. In addition, the different parts among the various embodiments can also be combined and used with each other. The present utility model does not limit this.

[0032] The above description is only a description of the preferred embodiments of the present utility model, and does not limit the scope of the present utility model in any way. Any changes and modifications made by those of ordinary skill in the art of the present utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A terminal LOOP frame antenna, characterized in that: The terminal LOOP frame antenna includes a main board, a first radiation component, a second radiation component and an isolation component. The first radiation component and the second radiation component are both connected to the main board. The first radiation component and the second radiation component are symmetrically arranged above the main board, and the isolation component is arranged between the first radiation component and the second radiation component; the first radiation component includes a first radiation arm, a first slot, a first feeding point and a first grounding point, and the second radiation component includes a second radiation arm, a second slot, a second feeding point and a second grounding point; the first slot and the second slot are both opened on the main board.

2. The terminal LOOP frame antenna according to claim 1, characterized in that: The first radiating arm and the second radiating arm are symmetrically arranged.

3. The terminal LOOP frame antenna according to claim 2, characterized in that: The first radiating arm and the second radiating arm are both configured as U-shaped radiating branches, the first feeding point and the second grounding point are respectively arranged at two ends of the first radiating arm and electrically connected to the first radiating arm; the second feeding point and the second grounding point are respectively arranged at two ends of the second radiating arm and electrically connected to the second radiating arm.

4. The terminal LOOP frame antenna according to claim 3, characterized in that: Both ends of the first radiation arm are connected to the main board, and both ends of the second radiation arm are connected to the main board.

5. The terminal LOOP frame antenna according to claim 4, characterized in that: The isolation component is disposed between the first radiation arm and the second radiation arm, and is connected to the main board.

6. The terminal LOOP frame antenna according to claim 5, characterized in that: The first slot and the second slot are both arranged on the main board.

7. The terminal LOOP frame antenna according to claim 6, characterized in that: The first slot and the second slot are both configured in an L-shape.

8. The terminal LOOP frame antenna according to claim 7, characterized in that: The opening of the first slot and the opening of the second slot are both arranged to face away from each other.

9. The terminal LOOP frame antenna according to claim 8, characterized in that: The first slot and the second slot both have a first end and a second end, the first end is grounded, and the second end is a free end.

10. A mobile terminal, characterized in that: The mobile terminal includes the terminal LOOP frame antenna described in any one of claims 1-9.

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