Metal frame antenna and electronic terminal equipment

Abstract

The utility model provides a metal frame antenna and an electronic terminal device using the same. The metal frame antenna comprises a first radiation unit, a second radiation unit and a third radiation unit, the second radiation unit is coupled with the first radiation unit, and the third radiation unit is coupled with the first radiation unit and the second radiation unit; the first radiation unit and the second radiation unit are in coupling connection to form a coupling gap, the third radiation unit is provided with a slot, and the coupling gap is communicated with the slot. The metal frame antenna not only can simplify the overall structure of the antenna, but also can improve the bandwidth radiation performance of the antenna, solves the problems of complex process, high cost and limited antenna performance of the metal frame antenna in the prior art, and effectively improves the overall radiation efficiency of the antenna.

Description

Technical Field

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

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also constantly expanding. Nowadays, 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 mobile phones. However, the space in mobile phones is limited, and the bandwidth of antennas is also limited by space, so the frequency bands covered by the antennas are limited, making it difficult to achieve the wide bandwidth radiation of the antennas.

[0003] Currently, most metal-framed mobile phones on the market use a segmented design with a full metal frame. A segment is cut at a suitable location on the frame to serve as an antenna. Due to the limitations of the frame, the antenna layout already determines the basic antenna performance. Typical mobile phone antenna solutions require a separate metal frame segment at the bottom or side of the battery compartment to act as the radiator, resulting in complex manufacturing processes and antenna performance that barely meets standards. However, in practical applications, due to various factors such as the internal structure of the phone and electromagnetic interference, antenna performance often falls short of optimal levels. Furthermore, the segmented metal frame antenna design requires precise control over the position and size of the segment, as well as the length and shape of the antenna, further increasing manufacturing complexity and cost. Therefore, improving the bandwidth radiation performance of the antenna within limited space has become a pressing technical problem to be solved.

[0004] In view of this, it is indeed necessary to propose a metal frame antenna and an electronic terminal device that uses the metal frame antenna. Utility Model Content

[0005] The purpose of this invention is to provide a metal frame antenna that not only simplifies the overall structure of the antenna but also improves its bandwidth radiation performance. It also solves the problems of complex manufacturing process, high cost, and limited performance of existing metal frame antennas, effectively improving the overall radiation efficiency of the antenna.

[0006] To solve the above-mentioned technical problems, this utility model provides a metal frame antenna, which includes a first radiating element, a second radiating element, and a third radiating element. The second radiating element is coupled to the first radiating element, and the third radiating element is coupled to both the first and second radiating elements. The first and second radiating elements are coupled to form a coupling gap, and the third radiating element has a slot. The coupling gap and the slot are interconnected.

[0007] As a further improvement of this utility model, the metal frame antenna further includes a feeding unit and a grounding unit, wherein the feeding unit is electrically connected to the third radiating unit and the grounding unit is electrically connected to the second radiating unit.

[0008] As a further improvement of this utility model, the first radiating unit is arranged in a T-shape, the second radiating unit is arranged in an L-shape, and the width of the coupling gap between the first radiating unit and the second radiating unit is 2mm ± 0.01.

[0009] As a further improvement of this utility model, the third radiating element is configured as an LDS antenna, including a first radiating stub, a second radiating stub, and a third radiating stub, wherein the first radiating stub and the second radiating stub are arranged perpendicular to each other, and the second radiating stub and the third radiating stub are arranged perpendicular to each other.

[0010] As a further improvement of this utility model, a slot is formed between the first radiating branch and the third radiating branch, and the slot is configured as a Z-shaped trace.

[0011] As a further improvement of this utility model, the first radiating branch is coupled to both the first radiating unit and the second radiating unit.

[0012] As a further improvement of this utility model, the length of the first radiating unit is configured to be 22mm±0.01, and the length of the second radiating unit is configured to be 10mm±0.01.

[0013] As a further improvement of this utility model, the second radiating unit includes a first branch and a second branch that are perpendicular to each other, and the first branch and the second branch form a second radiating unit with an opening facing the lower left; the first radiating branch of the third radiating unit extends toward the opening direction of the second radiating unit.

[0014] As a further improvement of this utility model, the metal frame antenna also includes a switching switch, which is electrically connected to the third radiating element.

[0015] The purpose of this invention is to provide an electronic terminal device that can better utilize the aforementioned metal frame antenna.

[0016] To solve the above-mentioned technical problems, this utility model provides an electronic terminal device, which includes the aforementioned metal frame antenna.

[0017] This invention provides a metal-framed antenna and an electronic terminal device using the same antenna. The metal-framed antenna includes a first radiating element, a second radiating element, and a third radiating element. The second radiating element is coupled to the first radiating element, and the third radiating element is coupled to both the first and second radiating elements. A coupling gap is formed between the first and second radiating elements, and a slot is formed in the third radiating element, with the coupling gap and the slot communicating with each other. This metal-framed antenna simplifies the overall antenna structure, improves bandwidth radiation performance, and solves the problems of complex manufacturing processes, high costs, and limited performance in existing metal-framed antennas, effectively improving the overall radiation efficiency of the antenna. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the metal frame antenna of this utility model.

[0019] The labels in the accompanying drawings are explained as follows:

[0020] First radiating unit 10, second radiating unit 20, third radiating unit 30, first radiating branch 31, second radiating branch 32, third radiating branch 33, slot 40, coupling gap 50. Detailed Implementation

[0021] The metal frame antenna and the electronic terminal device using the metal frame antenna 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 proportions may be used in different drawings to illustrate different aspects.

[0022] This invention provides a metal-framed antenna for use in electronic terminal devices.

[0023] This utility model provides a metal frame antenna, which includes a first radiating element 10, a second radiating element 20, and a third radiating element 30. The second radiating element 20 is coupled to the first radiating element 10, and the third radiating element 30 is coupled to both the first radiating element 10 and the second radiating element 20. The first radiating element 10 and the second radiating element 20 are coupled to form a coupling gap 50, and the third radiating element 30 has a slot 40. The coupling gap 50 and the slot 40 are interconnected.

[0024] This design simplifies the overall antenna structure and improves its bandwidth radiation performance. It also addresses the problems of complex manufacturing processes, high costs, and limited performance in existing metal-frame antennas, effectively enhancing overall radiation efficiency. In specific embodiments, the first radiating element 10, the second radiating element 20, and the third radiating element 30 can all be made of metal, such as copper, aluminum, or alloys, which have excellent electrical conductivity. These radiating elements can be connected to the frame of the electronic terminal device through welding, riveting, or gluing to form a complete metal-frame antenna structure.

[0025] Furthermore, to further optimize antenna performance, a coating can be applied to the surface of the metal frame antenna to improve its corrosion resistance and wear resistance. Simultaneously, the antenna's bandwidth radiation performance can be finely adjusted by modifying the shape, size, and coupling relationship between each radiating element.

[0026] In practical applications, this metal-framed antenna can be widely used in electronic terminal devices such as mobile phones, tablets, and laptops. By connecting to the internal circuitry of these devices, it can achieve signal reception and transmission, providing users with a stable and efficient communication experience.

[0027] As a further improvement of this utility model, the metal frame antenna further includes a feeding unit and a grounding unit. The feeding unit is electrically connected to the third radiating unit 30, and the grounding unit is electrically connected to the second radiating unit 20.

[0028] The feed unit, a key component of the antenna system, is responsible for transmitting the radio frequency signal generated by the signal source to the radiating unit, thereby driving the antenna to transmit and receive signals. In this invention, the electrical connection between the feed unit and the third radiating unit 30 ensures stable signal transmission and efficient utilization. The grounding unit connects the antenna system to the ground wire of the electronic terminal equipment, providing a stable reference potential for the antenna. Through its electrical connection with the second radiating unit 20, the grounding unit can effectively guide the induced current on the antenna, reduce unnecessary radiation loss, and further improve the antenna's performance.

[0029] Furthermore, the first radiating unit 10 is T-shaped, the second radiating unit 20 is L-shaped, and the width of the coupling gap 50 between the first radiating unit 10 and the second radiating unit 20 is 2mm ± 0.01.

[0030] This design not only optimizes the antenna's structural layout but also enhances the coupling effect between the first radiating element 10 and the second radiating element 20. By controlling the width of the coupling gap 50, within a range of 2mm ± 0.01, it is possible to ensure that the antenna exhibits good matching characteristics and radiation efficiency in different frequency bands. This subtle dimensional adjustment plays a crucial role in improving the overall performance of the antenna. Furthermore, the T-shaped and L-shaped designs enable the radiating elements to more effectively capture and transmit signals, thereby improving the stability and efficiency of communication.

[0031] Preferably, the third radiating element 30 is configured as an LDS antenna, including a first radiating stub 31, a second radiating stub 32, and a third radiating stub 33. The first radiating stub 31 and the second radiating stub 32 are arranged perpendicularly to each other, and the second radiating stub 32 and the third radiating stub 33 are arranged perpendicularly to each other. A slot 40 is formed between the first radiating stub 31 and the third radiating stub 33, and the slot 40 is configured as a Z-shaped trace.

[0032] This LDS antenna design makes the third radiating element 30 more compact and efficient in structure. The vertical arrangement of the first radiating stub 31 and the second radiating stub 32, as well as the vertical arrangement of the second radiating stub 32 and the third radiating stub 33, optimizes the spatial layout of the antenna, enabling it to achieve higher radiation efficiency and wider frequency band coverage within a limited space. Meanwhile, the slot design of the Z-shaped traces 40 not only increases the complexity of the antenna but also further improves its matching performance across different frequency bands. This design allows the antenna to better adapt to the high communication performance requirements of modern electronic terminal devices, providing users with a more stable and efficient communication experience.

[0033] Furthermore, the first radiating branch 31 is coupled to both the first radiating element 10 and the second radiating element 20. This coupling connection enhances the signal transmission efficiency between the third radiating element 30 and both the first and second radiating elements 10 and 20. Through a carefully designed coupling structure, the various radiating elements can work collaboratively to improve the overall performance of the antenna. This design not only optimizes the antenna's signal reception and transmission capabilities but also enhances its adaptability and stability in different environments. In practical applications, this coupling connection allows electronic terminal devices to maintain excellent communication performance in complex and ever-changing communication environments, providing users with a smoother and more seamless communication experience.

[0034] Preferably, the length of the first radiating element 10 is configured to be 22 mm ± 0.01 mm, and the length of the second radiating element 20 is configured to be 10 mm ± 0.01 mm. The second radiating element 20 includes a first branch and a second branch that are perpendicular to each other, and the first branch and the second branch form an opening facing downward to the left of the second radiating element 20; the first radiating branch 31 of the third radiating element 30 extends beyond the opening direction of the second radiating element 20. The metal frame antenna also includes a switching switch, which is electrically connected to the third radiating element 30.

[0035] This refined length configuration ensures the antenna's stability and matching performance across different frequency bands. The special design of the second radiating element 20—with its first and second stubs perpendicular to each other and forming an opening facing downwards to the left—further enhances the antenna's ability to receive and transmit signals in specific frequency bands. Simultaneously, the first radiating stub 31 of the third radiating element 30 extends towards the opening of the second radiating element 20. This layout optimizes the signal transmission path within the antenna, reduces signal loss, and improves overall performance. The introduction of a switching switch provides greater flexibility to the metal-framed antenna. Through electrical connection with the third radiating element 30, the switching switch can selectively activate or deactivate the third radiating element 30 as needed, thereby adjusting the antenna's operating state. This design allows electronic terminal devices to automatically adjust the antenna configuration as needed in different communication environments, ensuring communication stability and efficiency.

[0036] In summary, this utility model provides a metal-framed antenna and an electronic terminal device using the metal-framed antenna. The metal-framed antenna includes a first radiating element 10, a second radiating element 20, and a third radiating element 30. The second radiating element 20 is coupled to the first radiating element 10, and the third radiating element 30 is coupled to both the first radiating element 10 and the second radiating element 20. A coupling gap 50 is formed between the first radiating element 10 and the second radiating element 20, and a slot 40 is formed in the third radiating element 30. The coupling gap 50 and the slot 40 are interconnected. This utility model's metal-framed antenna not only simplifies the overall antenna structure but also improves the antenna's bandwidth radiation performance and solves the problems of complex manufacturing processes, high costs, and limited antenna performance in existing metal-framed antennas, effectively improving the overall radiation efficiency of the antenna.

[0037] 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.

[0038] 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 metal frame antenna, characterized by: The metal frame antenna comprises a first radiation unit, a second radiation unit and a third radiation unit, the second radiation unit is coupled with the first radiation unit, and the third radiation unit is coupled with the first radiation unit and the second radiation unit. The first radiation unit and the second radiation unit are coupled to form a coupling gap, and the third radiation unit is provided with a slot, and the coupling gap and the slot are through.

2. The metal frame antenna of claim 1, wherein: The metal frame antenna further comprises a feeding unit and a grounding unit, the feeding unit is electrically connected with the third radiation unit, and the grounding unit is electrically connected with the second radiation unit.

3. The metal frame antenna of claim 2, wherein: The first radiation unit is arranged in a T shape, the second radiation unit is arranged in an L shape, and the coupling gap between the first radiation unit and the second radiation unit has a width range of 2mm±0.

01.

4. The metal frame antenna of claim 3, wherein: The third radiation unit is configured as an LDS antenna, comprising a first radiation branch, a second radiation branch and a third radiation branch, the first radiation branch and the second radiation branch are arranged perpendicular to each other, and the second radiation branch and the third radiation branch are arranged perpendicular to each other.

5. The metal frame antenna of claim 4, wherein: The first radiation branch and the third radiation branch form the slot therebetween, and the slot is configured as a Z-shaped trace.

6. The metal frame antenna of claim 5, wherein: The first radiation branch is coupled with the first radiation unit and the second radiation unit.

7. The metal frame antenna of claim 6, wherein: The length of the first radiation unit is configured as 22mm±0.01, and the length of the second radiation unit is configured as 10mm±0.

01.

8. The metal frame antenna of claim 7, wherein: The second radiation unit comprises a first branch and a second branch perpendicular to each other, the first branch and the second branch form the second radiation unit with an opening facing the lower left, and the first radiation branch of the third radiation unit extends towards the opening direction of the second radiation unit.

9. The metal frame antenna of claim 8, wherein: The metal frame antenna further comprises a switching switch, and the switching switch is electrically connected with the third radiation unit.

10. An electronic terminal device, characterized by: The electronic terminal device comprises the metal frame antenna according to any one of claims 1-9.

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