Full-band antenna and mobile terminal

Abstract

The utility model provides a full-band antenna and a mobile terminal, the full-band antenna comprises a first radiation unit and a second radiation unit, and the first radiation unit and the second radiation unit are in coupling connection; the first radiation unit comprises a first radiation branch knot, a second radiation branch knot and a third radiation branch knot, the first radiation branch knot is electrically connected with a feeding point and a grounding point, and the second radiation branch knot and the third radiation branch knot are sequentially connected and then connected with the first radiation branch knot; the third radiation branch knot is connected with the second radiation branch knot and surrounds the first radiation branch knot, and the first radiation branch knot is in coupling connection with the second radiation unit. According to the full-band antenna provided by the utility model, the anti-interference capability of the full-band antenna is improved by utilizing the coupling connection between the radiation units, and a relatively wide bandwidth can be obtained, so that the problems of strong performance and strong anti-interference capability of a mobile terminal are solved, and the user experience is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, and in particular to a full-band antenna and a mobile terminal using the antenna. Background Art

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also expanding. Today, tablets are a common mobile terminal product. With the continuous development of technology, tablets will inevitably use 5G communication technology. This requires increasing the number of antennas in mobile phones. However, the space on tablets is limited, and the bandwidth of antennas is also limited by space. Therefore, the frequency band covered by antennas is limited, making it difficult to achieve the antenna's bandwidth radiation.

[0003] Currently, existing tablet projects are affected by the environment, the bandwidth is not very wide, and full-band debugging is difficult. In view of this, it is necessary for the present invention to propose a full-band antenna and a mobile terminal using the antenna. Utility Model Content

[0004] The purpose of the present utility model is to provide a full-band antenna and a mobile terminal, which utilize coupling connections between radiating units to improve the anti-interference ability of the full-band antenna, and can also obtain a relatively wide bandwidth, thereby solving the problems of strong performance and strong anti-interference ability on the mobile terminal and effectively improving the user experience.

[0005] In order to solve the above technical problems, the utility model provides a full-band antenna, which includes a first radiating unit and a second radiating unit, and the first radiating unit and the second radiating unit are coupled and connected; the first radiating unit includes a first radiating branch, a second radiating branch and a third radiating branch, the first radiating branch is electrically connected to the feeding point and the grounding point, the second radiating branch and the third radiating branch are connected in sequence and then connected to the first radiating branch, the third radiating branch is connected to the second radiating branch and surrounds the first radiating branch, and the first radiating branch is coupled and connected to the second radiating unit.

[0006] As a further improvement of the present invention, a first slit is provided on the first radiation branch, the first radiation branch is T-shaped, the left side of the first radiation branch is coupled to the second radiation unit, and the right side of the first radiation branch is connected to the second radiation branch.

[0007] As a further improvement of the present invention, the second radiating branch is L-shaped, one end of the second radiating branch is connected to the first radiating branch, and the other end of the second radiating branch is connected to the third radiating branch.

[0008] As a further improvement of the present invention, the third radiation branch includes a first antenna branch and a second antenna branch vertically connected to each other, the first antenna branch is connected to the second radiation branch, and the second antenna branch is coupled to the second radiation unit.

[0009] As a further improvement of the present invention, a gap is formed between the second radiation unit and the first radiation branch, the second antenna branch is connected to the first antenna branch and extends into the gap, and is coupled to the second radiation unit.

[0010] As a further improvement of the present invention, the second radiation unit is arranged in a Z shape, a part of the second radiation unit is coupled to the first radiation antenna, and another part of the second radiation unit is coupled to the second antenna.

[0011] As a further improvement of the present invention, the first radiation branch is configured to control the intermediate frequency band and the high frequency band, and the third radiation branch is configured to control the low frequency band.

[0012] As a further improvement of the present invention, the second radiation unit is configured to control an ultra-high frequency band, and the ultra-high frequency band controlled by the second radiation unit ranges from 3300MHz to 4200MHz.

[0013] As a further improvement of the present invention, the first radiation branch controls the medium frequency band range of 1700Mhz-2170Mhz; the first radiation branch controls the high frequency band range of 2500MHz-2690MHz; the third radiation branch controls the low frequency band range of 824MHz-894MHz.

[0014] The purpose of the present utility model is to provide a full-band antenna and a mobile terminal to better utilize the full-band antenna.

[0015] In order to solve the above technical problems, the present invention provides a mobile terminal, which includes the above-mentioned full-band antenna.

[0016] The present invention provides a full-band antenna and a mobile terminal, wherein the full-band antenna includes a first radiating unit and a second radiating unit, wherein the first radiating unit and the second radiating unit are coupled and connected; the first radiating unit includes a first radiating branch, a second radiating branch, and a third radiating branch, wherein the first radiating branch is electrically connected to a feeding point and a grounding point, the second radiating branch and the third radiating branch are sequentially connected and then connected to the first radiating branch, the third radiating branch is connected to the second radiating branch and surrounds the first radiating branch, and the first radiating branch is coupled and connected to the second radiating unit. The full-band antenna of the present invention utilizes coupling connection between radiating units to improve the anti-interference capability of the full-band antenna, and can also obtain a relatively wide bandwidth, thereby solving the problems of strong performance and strong anti-interference capability on mobile terminals and effectively improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the full-band antenna of the present invention.

[0018] Figure 2 This is a simulation diagram of the radiation performance of the full-band antenna of the present utility model.

[0019] A first radiation unit 10 , a first radiation branch 11 , a second radiation branch 12 , a third radiation branch 13 , a first antenna branch 131 , a second antenna branch 132 , a second radiation unit 20 , a feeding point 30 , and a grounding point 40 . DETAILED DESCRIPTION

[0020] The following is a detailed description of the full-band antenna and mobile terminal proposed in the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are highly simplified and not precisely proportioned, serving only to facilitate and clearly illustrate the embodiments of the present invention. Furthermore, the structures shown in the drawings are often portions of the actual structure. In particular, different drawings may require different emphasis and may use different proportions.

[0021] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also constantly expanding. Nowadays, tablets are commonly used mobile terminal products. With the continuous development of technology, tablets will inevitably use 5G communication technology. This requires increasing the number of antennas in mobile phones. However, the space of tablets is limited, and the bandwidth of antennas is also limited by space, so the frequency band covered by the antenna is limited, making it difficult to achieve the bandwidth radiation of the antenna. Currently, existing tablet projects are affected by the environment, the bandwidth is not very wide, and it is difficult to debug the full frequency band. In view of this, it is necessary for this utility model to propose a full-band antenna and a mobile terminal using the antenna.

[0022] like Figure 1As shown, the utility model provides a full-band antenna, which can be used on mobile terminals, especially on tablets or laptops. The full-band antenna includes a first radiating unit 10 and a second radiating unit 20, and the first radiating unit 10 and the second radiating unit 20 are coupled and connected; the first radiating unit 10 includes a first radiating branch 11, a second radiating branch 12 and a third radiating branch 13, the first radiating branch 11 is electrically connected to the feeding point 30 and the grounding point 40, the second radiating branch 12 and the third radiating branch 13 are connected in sequence and then connected to the first radiating branch 11, the third radiating branch 13 is connected to the second radiating branch 12 and surrounds the first radiating branch 11, and the first radiating branch 11 is coupled and connected to the second radiating unit 20.

[0023] With such a configuration, the full-band antenna of the present invention utilizes coupling connections between the radiation units to improve the anti-interference capability of the full-band antenna, and can also obtain a relatively wide bandwidth, thereby solving the problems of strong performance and strong anti-interference capability on mobile terminals and effectively improving the user experience.

[0024] Furthermore, a first slot is defined in the first radiating branch 11. The first radiating branch 11 is T-shaped, with the left side of the first radiating branch 11 coupled to the second radiating element 20, and the right side of the first radiating branch 11 connected to the second radiating branch 12. The second radiating branch 12 is L-shaped, with one end of the second radiating branch 12 connected to the first radiating branch 11 and the other end of the second radiating branch 12 connected to the third radiating branch 13. Furthermore, specifically, electrically connected feed points 30 and ground points 40 are provided on either side of the first slot. This arrangement allows the antenna's resonance to be adjusted or tuned by providing the first slot, significantly impacting the antenna's overall impedance. The width of the first slot ranges from 1 mm ± 0.1 mm. In practical applications, depending on the antenna impedance and the actual slot length, the antenna slot resonance will be lowered, allowing the third radiating branch 13 to generate a harmonic frequency band, thereby increasing the radiation range in the mid-frequency band. Adjusting the length of each branch by 1 mm at a time will also result in a change in the coupled resonance. Furthermore, the third radiation branch 13 includes a first antenna branch 131 and a second antenna branch 132 vertically connected to each other, the first antenna branch 131 is connected to the second radiation branch 12 , and the second antenna branch 132 is coupled to the second radiation unit 20 .

[0025] Combine Figure 1 and Figure 2Specifically, a gap is formed between the second radiating unit 20 and the first radiating branch 11. The second antenna branch 132 is connected to the first antenna branch 131 and extends into the gap, and is coupled to the second radiating unit 20. The second radiating unit 20 is arranged in a Z shape, with a portion of the second radiating unit 20 coupled to the first radiating antenna, and another portion of the second radiating unit 20 coupled to the second antenna. Compared with traditional technologies, this arrangement improves the overall anti-interference capability of the full-band antenna by utilizing coupling or parasitic coupling, and obtains a relatively wide radiation bandwidth, thereby solving the problem of poor performance on mobile terminals, especially tablets.

[0026] Preferably, the first radiation branch 11 is configured to control the medium frequency band and the high frequency band, and the third radiation branch 13 is configured to control the low frequency band. The second radiation unit 20 is configured to control the ultra-high frequency band, and the ultra-high frequency band controlled by the second radiation unit 20 is in the range of 3300MHz-4200MHz. The medium frequency band controlled by the first radiation branch 11 is in the range of 1700Mhz-2170Mhz; the high frequency band controlled by the first radiation branch 11 is in the range of 2500MHz-2690MHz; and the low frequency band controlled by the third radiation branch 13 is in the range of 824MHz-894MHz.

[0027] The present invention provides a full-band antenna and a mobile terminal. The full-band antenna includes a first radiating unit 10 and a second radiating unit 20, wherein the first radiating unit 10 and the second radiating unit 20 are coupled and connected. The first radiating unit 10 includes a first radiating branch 11, a second radiating branch 12, and a third radiating branch 13. The first radiating branch 11 is electrically connected to a feeding point 30 and a grounding point 40. The second radiating branch 12 and the third radiating branch 13 are sequentially connected and then connected to the first radiating branch 11. The third radiating branch 13 is connected to the second radiating branch 12 and surrounds the first radiating branch 11. The first radiating branch 11 is coupled and connected to the second radiating unit 20. The full-band antenna of the present invention utilizes coupling connection between radiating units to improve the anti-interference capability of the full-band antenna, and can also obtain a relatively wide bandwidth, thereby solving the problems of strong performance and strong anti-interference capability on the mobile terminal and effectively improving the user experience.

[0028] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. In addition, the different parts between the various embodiments can also be used in combination with each other, and this utility model does not limit this.

[0029] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A full-band antenna, characterized by: The full-band antenna includes a first radiation unit and a second radiation unit, wherein the first radiation unit and the second radiation unit are coupled to each other; The first radiation unit includes a first radiation branch, a second radiation branch and a third radiation branch. The first radiation branch is electrically connected to a feeding point and a grounding point. The second radiation branch and the third radiation branch are connected in sequence and then connected to the first radiation branch. The third radiation branch is connected to the second radiation branch and surrounds the first radiation branch. The first radiation branch is coupled to the second radiation unit.

2. The full-band antenna according to claim 1, characterized in that: A first slit is formed on the first radiation branch. The first radiation branch is T-shaped. The left side of the first radiation branch is coupled to the second radiation unit, and the right side of the first radiation branch is connected to the second radiation branch.

3. The full-band antenna according to claim 2, wherein: The second radiating branch is L-shaped, one end of the second radiating branch is connected to the first radiating branch, and the other end of the second radiating branch is connected to the third radiating branch.

4. The full-band antenna according to claim 3, characterized in that: The third radiation branch includes a first antenna branch and a second antenna branch vertically connected to each other, the first antenna branch is connected to the second radiation branch, and the second antenna branch is coupled to the second radiation unit.

5. The full-band antenna according to claim 4, characterized in that: A gap is formed between the second radiation unit and the first radiation branch. The second antenna branch is connected to the first antenna branch and extends into the gap, and is coupled to the second radiation unit.

6. The full-band antenna according to claim 5, characterized in that: The second radiation unit is arranged in a Z shape, a portion of the second radiation unit is coupled to the first radiation branch, and another portion of the second radiation unit is coupled to the second antenna branch.

7. The full-band antenna according to claim 6, characterized in that: The first radiation branch is configured to control a medium frequency band and a high frequency band, and the third radiation branch is configured to control a low frequency band.

8. The full-band antenna according to claim 7, characterized in that: The second radiating unit is configured to control an ultra-high frequency band, and the ultra-high frequency band controlled by the second radiating unit ranges from 3300 MHz to 4200 MHz.

9. The full-band antenna according to claim 8, characterized in that: The first radiation branch controls a medium frequency band range of 1700Mhz-2170Mhz; the first radiation branch controls a high frequency band range of 2500MHz-2690MHz; and the third radiation branch controls a low frequency band range of 824MHz-894MHz.

10. A mobile terminal, characterized in that: The mobile terminal includes the full-band antenna according to any one of claims 1 to 9.

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