Terminal antenna and mobile terminal

By designing the grounding components and radiating elements of the terminal antenna and utilizing stub and slot structures, the problem of limited space for mobile phone antennas was solved, achieving wide frequency band coverage and improved radiation efficiency, thus adapting to multi-band communication needs.

CN224164394UActive Publication Date: 2026-04-24KUNSHAN INNOWAVE COMMUNICATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN INNOWAVE COMMUNICATION TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Mobile phone antennas have limited space and bandwidth, making it difficult to achieve comprehensive frequency band coverage and resulting in low radiation efficiency, which affects communication quality.

Method used

Design a terminal antenna including a ground feed assembly and first and second radiating elements. Utilize a combination structure of antenna stubs and slots to optimize signal transmission and frequency band coverage. Achieve multi-frequency band coverage by adjusting the stub length and slot position.

Benefits of technology

Simplify antenna structure, optimize wiring, improve radiation efficiency, enhance communication quality, and adapt to different communication needs.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN224164394U_ABST
Patent Text Reader

Abstract

The utility model provides a terminal antenna and a mobile terminal, the terminal antenna comprises a ground feed assembly, a first radiation unit and a second radiation unit, the first radiation unit is connected with the second radiation unit, the first radiation unit and the second radiation unit are both electrically connected with the ground feed assembly, and the first radiation unit and the second radiation unit are electrically connected with the ground feed assembly. The first radiation unit comprises a first antenna branch knot and a second antenna branch knot, and the first antenna branch knot is provided with a first slotted hole; the second radiation unit comprises a third antenna branch knot and a fourth antenna branch knot, and the third branch knot is provided with a second slot hole; a first gap is arranged between the first radiation unit and the second radiation unit, and the first gap is communicated with the first slotted hole. Through the arrangement, the terminal antenna provided by the utility model not only can simplify the overall structure of the antenna, but also can optimize the overall routing of the antenna, and can effectively improve the overall radiation efficiency of the antenna at the same time.
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Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a terminal antenna and a mobile terminal. Background Technology

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also constantly expanding. Today, mobile phones are commonly used mobile terminal products. With the continuous development of technology, mobile phones inevitably use 5G communication technology, which requires increasing the number of antennas in the phone. However, the space in a mobile phone is limited, and the bandwidth of the antenna is also limited by space, resulting in a limited frequency band coverage and making it difficult to achieve wide bandwidth radiation. The mobile phone market faces the most intense competition in the communications industry, and mobile phone antenna design is one of the most important aspects of product design. This requires high overall antenna performance, not only comprehensive radiation frequency bands but also guaranteed radiation efficiency.

[0003] In view of this, it is indeed necessary for this utility model to propose a terminal antenna and a mobile terminal using the terminal antenna. Utility Model Content

[0004] The purpose of this invention is to provide a terminal antenna that not only simplifies the overall antenna structure and optimizes the overall antenna wiring, but also effectively improves the overall radiation efficiency of the antenna.

[0005] To solve the above-mentioned technical problems, this utility model provides a terminal antenna, which includes a grounding assembly, a first radiating element, and a second radiating element. The first radiating element and the second radiating element are connected and electrically connected to the grounding assembly. The first radiating element includes a first antenna stub and a second antenna stub, and a first slot is formed on the first antenna stub. The second radiating element includes a third antenna stub and a fourth antenna stub, and a second slot is formed on the third stub. A first gap exists between the first radiating element and the second radiating element, and the first gap communicates with the first slot.

[0006] As a further improvement of this utility model, the grounding component includes a first feed point, a second feed point, and a grounding point. The first feed point, the second feed point, and the grounding point are all on the same straight line, and the first feed point and the second feed point are both located on one side of the grounding point.

[0007] As a further improvement of this utility model, the first antenna stub and the second antenna stub are arranged perpendicular to each other, and the first feed point and the second feed point are located below the first slot.

[0008] As a further improvement of this utility model, the third antenna stub is located above the fourth antenna stub, and both the third antenna stub and the fourth antenna stub are L-shaped.

[0009] As a further improvement of this utility model, a second gap is formed between the third antenna stub and the fourth antenna stub, and the second gap is L-shaped.

[0010] As a further improvement of this utility model, a third gap is also provided on the third antenna stub, and the third gap is located above the second slot.

[0011] As a further improvement of this utility model, a third slot is also provided on the third antenna stub, and the third slot is connected to the third gap.

[0012] As a further improvement of this utility model, the length range of the first antenna stub is configured to be 10.75mm±0.15, the length range of the second antenna stub is configured to be 1.6mm±0.15, the length range of the third antenna stub is 38.85mm±0.15, and the length range of the fourth antenna stub is 24.95mm±0.15.

[0013] As a further improvement of this utility model, the first antenna stub is configured to control the intermediate frequency and / or high frequency bands, the second antenna stub is configured to control the intermediate frequency band, the third antenna stub is configured to control the high frequency band, and the fourth antenna stub is configured to control the low frequency band.

[0014] The purpose of this invention is to provide a terminal antenna to better utilize the aforementioned terminal antenna.

[0015] To solve the above-mentioned technical problems, the present invention provides a mobile terminal, which includes the aforementioned terminal antenna.

[0016] This invention provides a terminal antenna comprising a grounding assembly, a first radiating element, and a second radiating element. The first and second radiating elements are connected and electrically connected to the grounding assembly. The first radiating element includes a first antenna stub and a second antenna stub, with a first slot formed on the first antenna stub. The second radiating element includes a third antenna stub and a fourth antenna stub, with a second slot formed on the third stub. A first gap connects the first and second radiating elements and communicates with the first slot. This design simplifies the overall antenna structure, optimizes the antenna wiring, and effectively improves the overall radiation efficiency of the antenna. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the terminal antenna of this utility model.

[0018] The labels in the accompanying drawings are explained as follows:

[0019] First antenna stub 10, second antenna stub 20, third antenna stub 30, fourth antenna stub 40, first feed point 50, second feed point 60, grounding point 70, first slot 11, second slot 12, first gap 13, second gap 14, third gap 15, third slot 16. Detailed Implementation

[0020] The terminal antenna and mobile terminal proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the explanation of the embodiments of this utility model. Furthermore, the structures shown in the drawings are often part of the actual structure. In particular, different figures may emphasize different aspects and sometimes use different proportions.

[0021] In the current communications industry, the mobile phone market faces the most intense competition, and mobile phone antenna design is one of the most crucial aspects of product design. This necessitates the ability to quickly design antennas and evaluate overall device performance. Consequently, high overall antenna performance is required, demanding not only a comprehensive radiation frequency band but also guaranteed radiation efficiency.

[0022] This invention provides a terminal antenna that can be applied to mobile terminals, including mobile phones, laptops, or other smart terminals. The terminal antenna includes a grounding assembly, a first radiating element, and a second radiating element. The first and second radiating elements are connected and electrically connected to the grounding assembly. The first radiating element includes a first antenna stub 10 and a second antenna stub 20, with a first slot 11 formed on the first antenna stub 10. The second radiating element includes a third antenna stub 30 and a fourth antenna stub 40, with a second slot 12 formed on the third stub. A first gap 13 connects the first radiating element and the second radiating element, and the first gap 13 communicates with the first slot 11.

[0023] With this configuration, the terminal antenna of this invention can not only simplify the overall antenna structure and optimize the overall antenna wiring, but also effectively improve the overall radiation efficiency of the antenna.

[0024] In practical implementation, the first antenna stub 10 and the second antenna stub 20 are connected by metal wires or metal sheets to form a continuous electrical connection. Similarly, the third antenna stub 30 and the fourth antenna stub 40 are connected by metal wires or metal sheets to form a continuous electrical connection. This connection method ensures stable transmission of antenna signals and also simplifies the overall antenna structure.

[0025] Furthermore, the first feed point 50 and the second feed point 60 in the grounding assembly are electrically connected to the first and second radiating elements via metal wires to achieve signal input and output. The grounding point 70 is connected to the grounding part of the mobile terminal via a metal wire to ensure stable antenna operation. The mobile terminal may include smart terminals such as mobile phones, laptops, and tablets. By applying the terminal antenna of this invention to these smart terminals, the antenna's radiation efficiency can be significantly improved, and communication quality can be enhanced.

[0026] Furthermore, the terminal antenna of this invention can achieve coverage of different frequency bands by adjusting the length of each antenna segment and the position of the slots. For example, by adjusting the length of the first antenna segment 10 and the second antenna segment 20, coverage of the intermediate frequency and high frequency bands can be achieved; by adjusting the length of the third antenna segment 30 and the fourth antenna segment 40, coverage of the low frequency and high frequency bands can be achieved. This flexibility allows the terminal antenna of this invention to adapt to different communication needs.

[0027] Specifically, the grounding assembly includes a first feed point 50, a second feed point 60, and a ground point 70. The first feed point 50, the second feed point 60, and the ground point 70 are all on the same straight line, and the first feed point 50 and the second feed point 60 are both located to one side of the ground point 70. The first antenna stub 10 and the second antenna stub 20 are arranged perpendicularly to each other, and the first feed point 50 and the second feed point 60 are located below the first slot 11. This arrangement can further optimize the antenna's signal transmission performance.

[0028] In a specific implementation, the third antenna stub 30 is located above the fourth antenna stub 40, and both the third antenna stub 30 and the fourth antenna stub 40 are L-shaped. This design allows the antenna to better radiate signals within a limited space, improving the overall performance of the antenna. A second gap 14, also L-shaped, is formed between the third antenna stub 30 and the fourth antenna stub 40. This gap design further optimizes the antenna's signal transmission performance and improves its radiation efficiency.

[0029] The third antenna stub 30 also has a third slot 15, which is located above the second slot 12. The third antenna stub 30 also has a third slot 16, which communicates with the third slot 15. In other words, the third antenna stub 30 simultaneously has both a third slot 15 and a third slot 16, with the third slot 15 located above the second slot 12 and the third slot 16 communicating with it. This design allows for further adjustment of the antenna's frequency response, enabling the antenna to better adapt to different communication needs.

[0030] Furthermore, the length range of the first antenna stub 10 is configured to be 10.75mm ± 0.15mm, the length range of the second antenna stub 20 is configured to be 1.6mm ± 0.15mm, the length range of the third antenna stub 30 is 38.85mm ± 0.15mm, and the length range of the fourth antenna stub 40 is 24.95mm ± 0.15mm. This length configuration ensures stable operation of the antenna in different frequency bands, improving the overall performance of the antenna. The first antenna stub 10 is configured to control the intermediate frequency (IF) and / or high frequency bands, the second antenna stub 20 is configured to control the IF band, the third antenna stub 30 is configured to control the high frequency band, and the fourth antenna stub 40 is configured to control the low frequency band. This frequency band configuration allows the antenna to better cover different communication frequency bands, improving communication quality.

[0031] In summary, this utility model provides a terminal antenna comprising a grounding assembly, a first radiating element, and a second radiating element. The first and second radiating elements are connected and electrically connected to the grounding assembly. The first radiating element includes a first antenna stub 10 and a second antenna stub 20, with a first slot 11 formed on the first stub. The second radiating element includes a third antenna stub 30 and a fourth antenna stub 40, with a second slot 12 formed on the third stub. A first gap 13 connects the first and second radiating elements and communicates with the first slot 11. This design simplifies the overall antenna structure, optimizes the antenna routing, and effectively improves the overall radiation efficiency. The terminal antenna and mobile terminal of this utility model have advantages such as simple structure, high radiation efficiency, and comprehensive frequency band coverage, making them suitable for various smart terminal products and possessing broad market application prospects. By optimizing the overall antenna structure, routing, and frequency response design, the overall antenna structure is simplified, and the radiation efficiency and overall performance are improved. At the same time, this terminal antenna can adapt to different communication needs and has broad application prospects.

[0032] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. In addition, the different parts between embodiments can also be combined with each other, and this utility model does not limit this.

[0033] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A terminal antenna, characterized in that: The terminal antenna includes a grounding assembly, a first radiating element, and a second radiating element. The first radiating element and the second radiating element are connected and electrically connected to the grounding assembly. The first radiating element includes a first antenna stub and a second antenna stub, and a first slot is formed on the first antenna stub. The second radiating element includes a third antenna stub and a fourth antenna stub, and a second slot is formed on the third antenna stub. There is a first gap between the first radiating element and the second radiating element, and the first gap communicates with the first slot.

2. The terminal antenna according to claim 1, characterized in that: The grounding assembly includes a first feed point, a second feed point, and a grounding point. The first feed point, the second feed point, and the grounding point are all on the same straight line, and the first feed point and the second feed point are both located on one side of the grounding point.

3. The terminal antenna according to claim 2, characterized in that: The first antenna stub and the second antenna stub are arranged perpendicularly to each other, and the first feed point and the second feed point are located below the first slot.

4. The terminal antenna according to claim 3, characterized in that: The third antenna stub is located above the fourth antenna stub, and both the third and fourth antenna stubs are L-shaped.

5. The terminal antenna according to claim 4, characterized in that: A second gap is formed between the third antenna stub and the fourth antenna stub, and the second gap is L-shaped.

6. The terminal antenna according to claim 5, characterized in that: The third antenna stub is also provided with a third slot, which is located above the second slot.

7. The terminal antenna according to claim 6, characterized in that: The third antenna stub is also provided with a third slot, which is connected to the third gap.

8. The terminal antenna according to claim 7, characterized in that: The length of the first antenna stub is configured to be 10.75 mm ± 0.15, the length of the second antenna stub is configured to be 1.6 mm ± 0.15, the length of the third antenna stub is configured to be 38.85 mm ± 0.15, and the length of the fourth antenna stub is configured to be 24.95 mm ± 0.

15.

9. The terminal antenna according to claim 8, characterized in that: The first antenna stub is configured to control the intermediate frequency and / or high frequency bands, the second antenna stub is configured to control the intermediate frequency band, the third antenna stub is configured to control the high frequency band, and the fourth antenna stub is configured to control the low frequency band.

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