Miniaturized antenna and terminal equipment

Abstract

According to the miniaturized antenna and the terminal equipment, the miniaturized antenna comprises a substrate, a first radiation unit and a second radiation unit, and the first radiation unit and the second radiation unit are located on the two faces of the substrate. A part of the branch knot of the first radiation unit is coupled with a part of the branch knot of the second radiation unit to form a coupling area, the first radiation unit comprises a grounding point, the second radiation unit comprises a feeding point, and a surface where the first radiation unit is located is communicated with a surface where the second radiation unit is located through a via hole. According to the miniaturized antenna, the overall radiation frequency band of the antenna can be expanded, the overall radiation efficiency of the antenna can be effectively improved, the overall structure of the antenna is simplified, and the overall occupied area of the antenna is reduced.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a miniaturized antenna and a terminal device using the miniaturized antenna. Background Art

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also expanding. Today, mobile phones are commonly used mobile terminal products. With the continuous development of technology, mobile phones will inevitably use 5G communication technology. This requires increasing the number of antennas in mobile phones. However, the space of mobile phones 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] Research on 5G mobile communication technology is currently underway intensively around the world. 5G mobile communications feature ultra-high data transmission rates, ultra-low latency, ultra-high bandwidth, ultra-high capacity, multiple antenna technology, and backward compatibility. Considering the characteristics of 5G mobile communications and the development trends of 5G mobile communication antennas, antennas have become a key development trend in the antenna industry due to their numerous advantages, including small size, light weight, low cost, strong wind resistance, and ease of concealment. However, existing antennas in terminal devices are overly complex and occupy a large area.

[0004] In view of this, it is indeed necessary for the present invention to provide a miniaturized antenna and a terminal device using the miniaturized antenna. Summary of the Invention

[0005] The purpose of the present invention is to provide a miniaturized antenna that can not only expand the overall radiation frequency band of the antenna, but also effectively improve the overall radiation efficiency of the antenna, simplify the overall structure of the antenna, and reduce the overall occupied area of ​​the antenna.

[0006] In order to solve the above technical problems, the present invention provides a miniaturized antenna, which includes a substrate, a first radiating unit and a second radiating unit. The first radiating unit and the second radiating unit are located on two sides of the substrate. Some branches of the first radiating unit are coupled with some branches of the second radiating unit to form a coupling area. The first radiating unit includes a grounding point, and the second radiating unit includes a feeding point. The side where the first radiating unit is located and the side where the second radiating unit is located are connected through a via.

[0007] As a further improvement of the present invention, the coupling region includes a first coupling portion, a second coupling portion, a third coupling portion and a fourth coupling portion, and the first coupling portion, the second coupling portion, the third coupling portion and the fourth coupling portion are all located in the middle of the substrate.

[0008] As a further improvement of the present invention, the first coupling portion is T-shaped, and the second coupling portion, the third coupling portion, and the fourth coupling portion are all rectangular.

[0009] As a further improvement of the present invention, the first radiation unit includes a first antenna branch, a second antenna branch and a third antenna branch, and the first antenna branch, the second antenna branch and the third antenna branch are connected in sequence.

[0010] As a further improvement of the present invention, the grounding point is electrically connected to the first antenna branch, and the conductive hole is located above the grounding point.

[0011] As a further improvement of the present invention, the first antenna branch is arranged in a rectangular shape, the second antenna branch is arranged in a Z shape, and the third antenna branch is arranged in a U shape.

[0012] As a further improvement of the present invention, the second antenna branch is cross-coupled with the third antenna branch.

[0013] As a further improvement of the present invention, the second radiation unit includes a fourth antenna branch, a fifth antenna branch and a sixth antenna branch, and the fourth antenna branch, the fifth antenna branch and the sixth antenna branch are coupled and connected in sequence.

[0014] As a further improvement of the present invention, the first antenna branch is coupled with the fourth antenna branch to form the second coupling portion, the third antenna branch is coupled with the fifth antenna branch to form the first coupling portion, the sixth antenna branch is coupled with the second antenna branch to form the third coupling portion, and the fifth antenna branch is coupled with the first antenna branch to form the fourth coupling portion; the first coupling portion, the third coupling portion and the fourth coupling portion are all close to the feeding point and / or the grounding point.

[0015] An object of the present invention is to provide a terminal device to better utilize the above-mentioned miniaturized antenna.

[0016] In order to solve the above technical problems, the present invention provides a terminal device, which includes the aforementioned miniaturized antenna.

[0017] The present invention provides a miniaturized antenna and terminal device, wherein the miniaturized antenna includes a substrate, a first radiating unit, and a second radiating unit. The first radiating unit and the second radiating unit are located on opposite sides of the substrate. Partial branches of the first radiating unit are coupled with partial branches of the second radiating unit to form a coupling region. The first radiating unit includes a grounding point, the second radiating unit includes a feeding point, and the side where the first radiating unit is located and the side where the second radiating unit is located are connected by a via. The miniaturized antenna of the present invention can not only expand the overall radiation frequency band of the antenna, but also effectively improve the overall radiation efficiency of the antenna, simplify the overall structure of the antenna, and reduce the overall occupied area of ​​the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the miniaturized antenna of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the first radiation unit of the miniaturized antenna of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the second radiation unit of the miniaturized antenna of the present invention.

[0021] The descriptions of the reference numerals are as follows:

[0022] Substrate 10, first radiation unit 20, first antenna branch 21, second antenna branch 22, third antenna branch 23, second radiation unit 30, fourth antenna branch 31, fifth antenna branch 32, sixth antenna branch 33, grounding point 40, feeding point 50, conductive hole 60, first coupling part A, second coupling part B, third coupling part C, fourth coupling part D. DETAILED DESCRIPTION

[0023] The following describes the miniaturized antenna and terminal device proposed in the present invention in further detail, using the accompanying drawings and specific embodiments. It should be noted that the drawings are highly simplified and not precisely scaled, 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 use different scales, depending on the emphasis they require.

[0024] Research on 5G mobile communication technology is currently underway intensively around the world. Mobile communications feature ultra-high data transmission rates, ultra-low latency, ultra-high bandwidth, ultra-high capacity, and multi-antenna technology with backward compatibility. Combining these characteristics with the development trends of mobile communications, antennas have become a key development trend in the antenna industry due to their numerous advantages, including small size, light weight, low cost, strong wind resistance, and ease of concealment. However, existing antennas in terminal devices are overly complex and occupy a large area.

[0025] The present invention provides a miniaturized antenna, which includes a substrate 10, a first radiating unit 20 and a second radiating unit 30. The first radiating unit 20 and the second radiating unit 30 are located on two sides of the substrate 10. Some branches of the first radiating unit 20 are coupled with some branches of the second radiating unit 30 to form a coupling area. The first radiating unit 20 includes a grounding point 40, and the second radiating unit 30 includes a feeding point 50. The side where the first radiating unit 20 is located and the side where the second radiating unit 30 is located are connected through a via 60.

[0026] With such an arrangement, the miniaturized antenna of the present invention can not only expand the overall radiation frequency band of the antenna, but also effectively improve the overall radiation efficiency of the antenna, simplify the overall structure of the antenna, and reduce the overall occupied area of ​​the antenna. In specific implementation, the miniaturized antenna of the present invention achieves multi-band coverage through its unique design. First, the first radiation unit 20 and the second radiation unit 30 are respectively located on the two sides of the substrate 10. This double-sided design effectively utilizes the space, so that the antenna can accommodate more radiation units while maintaining miniaturization, thereby expanding the radiation frequency band of the antenna. Secondly, some branches of the first radiation unit 20 and some branches of the second radiation unit 30 are coupled to form a coupling area. This coupling design enhances the interaction between the various units of the antenna and further improves the radiation efficiency of the antenna. At the same time, the specific shape and position of the coupling area have also been carefully designed to ensure that the antenna has stable structural characteristics while maintaining high performance.

[0027] Furthermore, the miniaturized antenna of the present invention connects the side where the first radiating element 20 is located with the side where the second radiating element 30 is located via a via 60. This design not only simplifies the antenna structure but also improves its overall performance. The provision of via 60 makes the electromagnetic field distribution within the antenna more uniform, further enhancing the antenna's radiation efficiency. Furthermore, the location and number of vias 60 have been optimized to ensure optimal electromagnetic performance while maintaining the antenna's miniaturization.

[0028] During implementation, the miniaturized antenna of the present invention can be further improved and optimized as needed. For example, the shape, size, and position of the radiating elements can be adjusted to alter the antenna's radiation characteristics and impedance matching to meet different application requirements. Furthermore, other functional elements or structures can be added to substrate 10 to enhance antenna performance or implement other functions. These improvements and optimization measures can be flexibly selected and combined based on specific application scenarios and requirements.

[0029] Specifically, the coupling region includes a first coupling portion A, a second coupling portion B, a third coupling portion C, and a fourth coupling portion D. These are all located in the center of the substrate 10. This arrangement allows for a more concentrated coupling region, enhancing interaction between antenna elements and improving radiation efficiency. Furthermore, locating the coupling region in the center of the substrate 10 ensures the antenna maintains high performance while maintaining structural stability. In specific implementations, the shape, size, and position of the coupling portions can be adjusted to further optimize antenna performance. For example, the first coupling portion A can be T-shaped to enhance coupling with the second radiating element 30, while the second coupling portion B, third coupling portion C, and fourth coupling portion D can be rectangular to achieve a more uniform coupling region, improving overall antenna performance. Furthermore, the relative positions of the coupling portions to the feed point 50 and ground point 40 can be adjusted to further optimize the antenna's impedance matching, thereby meeting different application requirements.

[0030] Preferably, the first coupling portion A is T-shaped, and the second coupling portion B, the third coupling portion C, and the fourth coupling portion D are all rectangular. This arrangement can further enhance the coupling effect of the antenna and improve the radiation efficiency of the antenna. Setting the first coupling portion A in a T shape can make its coupling with the second radiating unit 30 closer, thereby enhancing the signal transmission capability of the antenna. Setting the second coupling portion B, the third coupling portion C, and the fourth coupling portion D in a rectangular shape can make the coupling area more stable, which is conducive to improving the overall performance and stability of the antenna. In addition, the shape design of this coupling portion can also be flexibly adjusted according to specific application requirements to meet different communication requirements.

[0031] Specifically, the first radiating unit 20 includes a first antenna branch 21, a second antenna branch 22, and a third antenna branch 23, and the first antenna branch 21, the second antenna branch 22, and the third antenna branch 23 are connected in sequence. The grounding point 40 is electrically connected to the first antenna branch 21, and the conductive hole 60 is located above the grounding point 40. This arrangement can make the structure of the first radiating unit 20 more compact, which is conducive to improving the overall performance and stability of the antenna. At the same time, electrically connecting the grounding point 40 to the first antenna branch 21 can ensure that the antenna has a good grounding effect when transmitting signals, thereby improving the signal transmission quality of the antenna. In addition, the conductive hole 60 is located above the grounding point 40, which can make the electromagnetic field distribution inside the antenna more uniform, further improving the radiation efficiency of the antenna. In the specific implementation process, the performance of the antenna can be further optimized by adjusting the shape, size, and position of the antenna branches to meet different application requirements.

[0032] The first antenna branch 21 is arranged in a rectangular shape, the second antenna branch 22 is arranged in a Z shape, and the third antenna branch 23 is arranged in a U shape. The second antenna branch 22 and the third antenna branch 23 are cross-coupled and connected. Such an arrangement can further enhance the coupling effect of the first radiating unit 20 and improve the radiation efficiency of the antenna. Setting the first antenna branch 21 in a rectangular shape can make its connection with the second antenna branch 22 and the third antenna branch 23 more stable, which is conducive to enhancing the structural strength of the antenna. Setting the second antenna branch 22 in a Z shape and the third antenna branch 23 in a U shape can make the coupling between the antenna branches tighter, thereby enhancing the signal transmission capability of the antenna. In addition, the cross-coupling connection between the second antenna branch 22 and the third antenna branch 23 can further expand the radiation frequency band of the antenna and improve the overall performance of the antenna. In the specific implementation process, the performance of the antenna can also be further optimized by adjusting the shape, size and position of the antenna branches to meet different application scenarios and needs.

[0033] Furthermore, the second radiating element 30 includes a fourth antenna branch 31, a fifth antenna branch 32, and a sixth antenna branch 33, which are sequentially coupled. The first antenna branch 21 and the fourth antenna branch 31 are coupled to form the second coupling portion B, the third antenna branch 23 and the fifth antenna branch 32 are coupled to form the first coupling portion A, the sixth antenna branch 33 and the second antenna branch 22 are coupled to form the third coupling portion C, and the fifth antenna branch 32 and the first antenna branch 21 are coupled to form the fourth coupling portion D. The first coupling portion A, the third coupling portion C, and the fourth coupling portion D are all located near the feed point 50 and / or the ground point 40. This configuration further enhances the coupling effect of the second radiating element 30 and improves the overall performance of the antenna. Sequentially coupling the fourth antenna branch 31, the fifth antenna branch 32, and the sixth antenna branch 33 makes the structure of the second radiating unit 30 more compact, which helps improve the radiation efficiency and stability of the antenna. Furthermore, by carefully designing the position and shape of the coupling portion, the antenna can maintain high performance while maintaining stable structural characteristics. In specific implementations, the shape, size, and position of the antenna branches can be adjusted to further optimize the antenna's performance to meet different application scenarios and requirements.

[0034] The first antenna branch 21, second antenna branch 22, and third antenna branch 23 of the first radiating element 20 of the miniaturized antenna of the present invention are connected in sequence. The first antenna branch 21 is arranged in a rectangular sheet shape, and the second antenna branch 22 is arranged in a Z shape. One end of the second antenna branch 22 is grounded, and a feed structure is provided above one end of the second antenna branch 22. The branch at the other end of the second antenna branch 22 is coupled to the branch at one end of the third antenna branch 23, forming a gap. This arrangement strengthens the coupling between the first radiating element 20 and the second radiating element 30, further enhancing the antenna's signal transmission capability. The gap also allows the antenna's radiation characteristics to be adjusted to meet different communication requirements. In specific implementations, the antenna's performance can be further optimized by adjusting the shape, size, and position of the gap. Furthermore, the feed structure requires careful design to ensure good impedance matching during signal transmission, thereby improving the antenna's overall performance.

[0035] Furthermore, the terminal device of the present invention includes the above-mentioned miniaturized antenna, and the terminal device can be a mobile communication device such as a mobile phone, a tablet computer, a laptop computer, or a wireless communication device such as a wireless router or a base station. In the specific implementation process, the miniaturized antenna can be integrated into the internal structure of the terminal device to achieve good signal transmission and reception effects. At the same time, since the miniaturized antenna of the present invention has the advantages of small size, light weight, and low cost, it can greatly reduce the manufacturing cost of the terminal device and improve its market competitiveness. In the specific implementation process, the appropriate antenna configuration and parameter settings can be selected according to the specific application scenario and requirements of the terminal device to ensure that the terminal device has excellent communication performance and stability while maintaining miniaturization and lightness.

[0036] In summary, the present invention provides a miniaturized antenna and terminal device, which achieves the advantages of multi-band coverage, high radiation efficiency, simplified structure and reduced occupied area through a unique design. At the same time, the terminal device achieves good signal transmission and reception effects and reduces manufacturing costs by integrating a miniaturized antenna. Therefore, the present invention has broad application prospects in the field of mobile communications. The miniaturized antenna proposed in the present invention and the terminal device using the miniaturized antenna have the advantages of simple structure, excellent performance, and easy implementation. By adopting a unique design scheme and technical means, the present invention successfully solves the problems of overly complex antennas and large occupied areas on existing terminal devices, and provides new ideas and solutions for the development and application of 5G mobile communication technology. At the same time, the present invention can also be further improved and optimized as needed to meet different application scenarios and needs.

[0037] 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 the present invention is not limited to this.

[0038] The above description is only a description of the preferred embodiments 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 miniaturized antenna, characterized in that: The miniaturized antenna includes a substrate, a first radiation unit and a second radiation unit, the first radiation unit and the second radiation unit are located on two sides of the substrate, some branches of the first radiation unit are coupled with some branches of the second radiation unit to form a coupling area, the first radiation unit includes a grounding point, the second radiation unit includes a feeding point, and the side where the first radiation unit is located and the side where the second radiation unit is located are connected through a via.

2. The miniaturized antenna according to claim 1, wherein: The coupling region includes a first coupling portion, a second coupling portion, a third coupling portion, and a fourth coupling portion, and the first coupling portion, the second coupling portion, the third coupling portion, and the fourth coupling portion are all located in the middle of the substrate.

3. The miniaturized antenna according to claim 2, wherein: The first coupling portion is T-shaped, and the second coupling portion, the third coupling portion, and the fourth coupling portion are all rectangular.

4. The miniaturized antenna according to claim 1, wherein: The first radiation unit includes a first antenna branch, a second antenna branch, and a third antenna branch, and the first antenna branch, the second antenna branch, and the third antenna branch are connected in sequence.

5. The miniaturized antenna according to claim 4, wherein: The grounding point is electrically connected to the first antenna branch, and the conductive hole is located above the grounding point.

6. The miniaturized antenna according to claim 4, wherein: The first antenna branch is arranged in a rectangular shape, the second antenna branch is arranged in a Z shape, and the third antenna branch is arranged in a U shape.

7. The miniaturized antenna according to claim 6, wherein: The second antenna branch is cross-coupled with the third antenna branch.

8. The miniaturized antenna according to claim 4, wherein: The second radiation unit includes a fourth antenna branch, a fifth antenna branch, and a sixth antenna branch, and the fourth antenna branch, the fifth antenna branch, and the sixth antenna branch are coupled and connected in sequence.

9. The miniaturized antenna according to claim 8, characterized in that: The first antenna branch is coupled with the fourth antenna branch to form the second coupling portion, the third antenna branch is coupled with the fifth antenna branch to form the first coupling portion, the sixth antenna branch is coupled with the second antenna branch to form the third coupling portion, and the fifth antenna branch is coupled with the first antenna branch to form the fourth coupling portion; the first coupling portion, the third coupling portion and the fourth coupling portion are all close to the feeding point and / or the grounding point.

10. A terminal device, characterized in that: The terminal device includes the miniaturized antenna according to any one of claims 1 to 9.

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