A high-gain antenna and mobile terminal device

Abstract

This invention provides a high-gain antenna and a mobile terminal device. The high-gain antenna includes a substrate, a first radiating element, and a second radiating element. The first radiating element is located on one side of the substrate, and the second radiating element is located on the other side of the substrate. The first radiating element includes a feed point, a ground point, and a first radiating component, a second radiating component, and a third radiating component. The second radiating element includes a fourth radiating component, a fifth radiating component, a sixth radiating component, and a seventh radiating component. The fourth, fifth, sixth, and seventh radiating components are sequentially coupled and arranged on the substrate, and are coupled to the first, second, and third radiating components. This high-gain antenna not only enables the entire antenna to transmit and receive signals, but also widens the antenna bandwidth, enhances antenna radiation efficiency, and reduces production costs.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a high-gain antenna and a mobile terminal device using the antenna. 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] 5G NR is a global 5G standard with a completely new air interface design and a crucial foundation for next-generation cellular mobile technology. Like earlier 2G, 3G, and 4G mobile networks, 5G networks are digital cellular networks, in which the service area covered by a provider is divided into many small geographical areas called cells. Analog signals representing voice and images are digitized in the phone, converted by an analog-to-digital converter, and transmitted as a bitstream. All 5G wireless devices within a cell communicate via radio waves with the local antenna array and low-power automatic transceiver within the cell.

[0004] 5G NR antenna technology plays a crucial role in 5G networks, not only improving network coverage and transmission rates but also enhancing system reliability and energy efficiency. As 5G networks are deployed and technology continues to advance, 5G NR antennas will continue to evolve. In the future, antenna technology will become more intelligent and integrated, supporting higher frequencies and greater bandwidth. Furthermore, antenna design will place greater emphasis on energy efficiency and cost-effectiveness to adapt to different application scenarios and market demands. Currently, conventional microstrip antennas or Franklin antennas suffer from poor omnidirectionality and low radiation gain efficiency.

[0005] In view of this, it is indeed necessary to propose a high-gain antenna and a mobile terminal using the high-gain antenna. Utility Model Content

[0006] The purpose of this invention is to provide a high-gain antenna that can not only achieve the transmission and reception of signals throughout the antenna, but also broaden the antenna bandwidth, enhance the antenna radiation efficiency, and reduce production costs.

[0007] To solve the above-mentioned technical problems, this utility model provides a high-gain antenna, which includes a substrate, a first radiating element, a second radiating element, a feed point, and a ground point. The first radiating element and the second radiating element are respectively disposed on two sides of the substrate. The first radiating element and / or the second radiating element are electrically connected to the feed point and the ground point. The first radiating element and the second radiating element are disposed opposite to each other and coupled together.

[0008] As a further improvement of this utility model, both the first radiation unit and the second radiation unit include a plurality of radiation components, and the plurality of radiation components of the first radiation unit and the plurality of radiation components of the second radiation unit are coupled together.

[0009] As a further improvement of this utility model, the first radiation unit includes a first radiation component, a second radiation component, and a third radiation component; the second radiation unit includes a fourth radiation component, a fifth radiation component, a sixth radiation component, and a seventh radiation component, wherein the fourth radiation component, the fifth radiation component, the sixth radiation component, and the seventh radiation component are sequentially coupled and arranged on the substrate, and are coupled and connected to the first radiation component, the second radiation component, and the third radiation component.

[0010] As a further improvement of this utility model, the first radiating component includes a first antenna stub and a second antenna stub, the first antenna stub and the second antenna stub are connected and form a first gap, and the end of the second antenna stub is electrically connected to the grounding point.

[0011] As a further improvement of this utility model, the second radiating component includes a third antenna stub and a fourth antenna stub, the third antenna stub and the fourth antenna stub are connected and form a second gap, and the end of the fourth antenna stub is electrically connected to the grounding point.

[0012] As a further improvement of this utility model, the first gap and the second gap are interconnected, and the grounding point is located between the first gap and the second gap.

[0013] As a further improvement of this utility model, the first radiating component further includes a fifth antenna stub, which is connected to the first antenna stub.

[0014] As a further improvement of this utility model, the first radiation unit further includes an impedance component, which includes a first impedance device and a second impedance device. The first impedance device and the second impedance device are connected, and the second impedance device is connected to the third radiation component.

[0015] As a further improvement of this utility model, the first impedance device gradually shrinks from the first end to the second end, and the second end is connected to the second impedance device.

[0016] As a further improvement of this utility model, the first impedance device is trapezoidal in shape; the second impedance device is configured as an impedance transformer.

[0017] As a further improvement of this utility model, the fourth radiating component is coupled to the grounding point and the feed point, and the feed point couples and excites the fourth radiating component; the sixth radiating component is coupled to the second impedance device, and the seventh radiating component is coupled to the third radiating component to adjust the impedance.

[0018] As a further improvement of this utility model, the fifth radiating component includes a sixth antenna stub, a seventh antenna stub, and an eighth antenna stub, which are arranged sequentially and coupled together.

[0019] As a further improvement of this utility model, the distance between the sixth antenna stub and the seventh antenna stub is in the range of 0.1mm to 1mm; the distance between the seventh antenna stub and the eighth antenna stub is in the range of 0.1mm to 1mm.

[0020] As a further improvement of this utility model, a first coupling gap is formed between the fourth radiating component and the fifth radiating component, the first coupling gap having a range of 0.1 mm to 1.5 mm; a second coupling gap is formed between the fifth radiating component and the sixth radiating component, the second coupling gap having a range of 5 mm to 10 mm; and a third coupling gap is formed between the sixth radiating component and the seventh radiating component, the third coupling gap having a range of 5 mm to 10 mm.

[0021] The purpose of this invention is to provide a mobile terminal device that can better utilize the aforementioned high-gain antenna.

[0022] To solve the above-mentioned technical problems, the present invention provides a mobile terminal device, which includes the aforementioned high-gain antenna.

[0023] This invention provides a high-gain antenna, comprising a substrate, a first radiating element, and a second radiating element. The first radiating element is located on one side of the substrate, and the second radiating element is located on the other side of the substrate. The first radiating element includes a feed point, a ground point, and a first radiating component, a second radiating component, and a third radiating component. The second radiating element includes a fourth radiating component, a fifth radiating component, a sixth radiating component, and a seventh radiating component. The fourth, fifth, sixth, and seventh radiating components are sequentially coupled and arranged on the substrate, and are coupled to the first, second, and third radiating components. This high-gain antenna not only enables the entire antenna to transmit and receive signals, but also widens the antenna bandwidth, enhances antenna radiation efficiency, and reduces production costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the high-gain antenna of this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the first radiating element of the high-gain antenna of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the second radiating element of the high-gain antenna of this utility model.

[0027] The labels in the attached figures are explained as follows:

[0028] The substrate 10 includes a first radiating element 20, a first radiating component 21, a first antenna branch 210, a second antenna branch 211, a first slot 212, a fifth antenna branch 213, a first impedance device 214, a second impedance device 215, a second radiating component 22, a third antenna branch 220, a fourth antenna branch 221, a second slot 222, a third radiating component 23, a second radiating element 30, a fourth radiating component 31, a first coupling slot 35, a second coupling slot 36, a third coupling slot 37, a fifth radiating component 32, a sixth antenna branch 320, a seventh antenna branch 321, an eighth antenna branch 322, a sixth radiating component 33, a seventh radiating component 34, a feed point 40, and a ground point 50. Detailed Implementation

[0029] The high-gain antenna and mobile terminal device 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.

[0030] Existing 5G NR antenna technology plays a crucial role in 5G networks, not only improving network coverage and transmission rates but also enhancing system reliability and energy efficiency. With the deployment of 5G networks and continuous technological advancements, future antenna technology will become more intelligent and integrated, supporting higher frequencies and greater bandwidth. Furthermore, antenna design will place greater emphasis on energy efficiency and cost-effectiveness to adapt to different application scenarios and market demands. Conventional microstrip antennas or Franklin antennas suffer from poor omnidirectionality and low gain efficiency. Therefore, this invention provides a high-gain antenna that can be applied to mobile terminal devices.

[0031] This invention provides a high-gain antenna that can be used in mobile terminal devices, including mobile phones, laptops, and other mobile terminal devices.

[0032] The high-gain antenna includes a substrate 10, a first radiating element 20, a second radiating element 30, a feed point, and a ground point. The first radiating element and the second radiating element are respectively disposed on opposite sides of the substrate. The first radiating element and / or the second radiating element are electrically connected to the feed point and the ground point. The first radiating element and the second radiating element are disposed opposite to each other and coupled together. Each of the first radiating element and the second radiating element includes a plurality of radiating components, and the plurality of radiating components of the first radiating element and the plurality of radiating components of the second radiating element are coupled together.

[0033] The number of radiating components in the first radiating unit and the number of radiating components in the second radiating unit are not limited in this utility model. The number of radiating components in the first radiating unit can be two or other values, and the number of radiating components in the second radiating unit can also be two or other values. Furthermore, the number of radiating components in the first radiating unit and the number of radiating components in the second radiating unit can be arbitrarily combined.

[0034] This invention will be described in detail using three radiating components in the first radiating unit and four radiating components in the second radiating unit as examples.

[0035] The first radiating element 20 of the high-gain antenna of this invention is located on one side of the substrate 10, and the second radiating element 30 is located on the other side of the substrate 10. The first radiating element 20 includes a feed point 40, a ground point 50, and a first radiating component 21, a second radiating component 22, and a third radiating component 23. The second radiating element 30 includes a fourth radiating component 31, a fifth radiating component 32, a sixth radiating component 33, and a seventh radiating component 34. The fourth radiating component 31, the fifth radiating component 32, the sixth radiating component 33, and the seventh radiating component 34 are sequentially coupled and arranged on the substrate 10, and are coupled to the first radiating component 21, the second radiating component 22, and the third radiating component 23.

[0036] Thus, the high-gain antenna of this invention not only enables the entire antenna to transmit and receive signals, but also broadens the antenna bandwidth, enhances antenna radiation efficiency, and reduces production costs. In other words, by optimizing the antenna structure, the coupling between the various radiating components is made tighter, thereby improving the overall performance of the antenna. Specifically, the design of the first radiating element 20 and the second radiating element 30 allows the antenna to operate over a wider frequency band while maintaining high gain and radiation efficiency.

[0037] Furthermore, the first radiating component 21 includes a first antenna stub 210 and a second antenna stub 211. The first antenna stub 210 and the second antenna stub 211 are connected and form a first slot 212. The end of the second antenna stub 211 is electrically connected to the grounding point 50. This configuration allows the first slot 212 to help adjust the antenna's impedance and frequency response, thereby optimizing the antenna's performance. The connection method of the first antenna stub 210 and the second antenna stub 211, as well as their relative positions to the grounding point 50, have been carefully designed to ensure that the antenna can achieve optimal signal transmission and reception.

[0038] The second radiating component 22 includes a third antenna stub 220 and a fourth antenna stub 221. The third antenna stub 220 and the fourth antenna stub 221 are connected and form a second slot 222. The end of the fourth antenna stub 221 is electrically connected to the grounding point 50. This configuration allows the second slot 222 to play a crucial role in adjusting the antenna's impedance matching and frequency response. By adjusting the length, width, and connection angle between the third antenna stub 220 and the fourth antenna stub 221, the antenna's performance can be further optimized, ensuring stable gain and radiation efficiency across a wide frequency band.

[0039] The first slot 212 and the second slot 222 are interconnected, and the grounding point 50 is located between the first slot 212 and the second slot 222. This arrangement, by interconnecting the first slot 212 and the second slot 222 and placing the grounding point 50 between these two slots, further enhances the compactness and stability of the antenna structure. This design not only simplifies the antenna structure but also improves its electrical performance. As a key element in the antenna structure, the location of the grounding point 50 is crucial for impedance matching and signal transmission. Placing the grounding point 50 between the first slot 212 and the second slot 222 helps achieve better grounding, thereby optimizing the overall performance of the antenna.

[0040] Furthermore, the first radiating component 21 also includes a fifth antenna stub 213, which is connected to the first antenna stub 210. This configuration, with the addition of the fifth antenna stub 213, further enriches the antenna's radiation modes, contributing to stable signal transmission across multiple frequency bands. By finely adjusting the length, shape, and connection method of the fifth antenna stub 213 to the first antenna stub 210, the antenna's gain and bandwidth characteristics can be further optimized, making it better suited to the needs of 5G communication technology.

[0041] The first radiating element 20 further includes an impedance component, comprising a first impedance device 214 and a second impedance device 215. The first impedance device 214 and the second impedance device 215 are connected, and the second impedance device 215 is connected to the third radiating element 23. The first impedance device 214 plays a crucial role in impedance adjustment, adjusting the overall standing wave ratio (VSWR) of the antenna and expanding its bandwidth. This configuration, with its specially designed connection method for the first impedance device 214 and the second impedance device 215, ensures a smooth impedance transition and matching. The trapezoidal structure of the first impedance device 214 facilitates good impedance transformation over a wide frequency band, while the second impedance device 215, acting as an impedance transformer, further enhances the antenna's bandwidth and gain characteristics. By finely adjusting the parameters of the impedance component, the antenna's performance can be further optimized, ensuring excellent performance in various application scenarios.

[0042] Preferably, the first impedance device 214 gradually tapers from a first end to a second end, and the second end is connected to the second impedance device 215. The first impedance device 214 is trapezoidal in shape; the second impedance device 215 is configured as an impedance transformer. This trapezoidal design of the first impedance device 214 helps achieve smooth impedance transformation over a wide frequency band, thereby enhancing the antenna's bandwidth characteristics. By adjusting the angle and length of the trapezoid, the impedance transformation process can be precisely controlled, ensuring that the antenna maintains good matching across multiple frequency bands. The second impedance device 215, as a dedicated impedance transformer, further optimizes the antenna's bandwidth and gain characteristics. Through its collaborative work with the first impedance device 214, the second impedance device 215 can achieve more precise impedance matching, thereby improving the overall performance of the antenna. The first impedance device 214 of this invention can also be configured in other shapes, as long as it gradually tapers from the first end to the second end; that is, it can be configured with a gradient shape from the first end to the second end. This configuration allows for adjustment of the overall antenna impedance, which in turn adjusts the antenna standing wave ratio and expands the bandwidth. The bandwidth expansion range is 1710MHz-2170MHz / 2496MHz-2690MHz / 3300MHz-4200MHz.

[0043] The third radiating component 23 includes a first high-frequency radiating branch and a second high-frequency radiating branch, which are arranged perpendicularly to each other. The first high-frequency radiating branch controls a radiation frequency range of 3300MHz-4200MHz; the second high-frequency radiating branch controls a radiation frequency range of 1710-2170 / 2496-2690 / 3300-4200MHz.

[0044] Specifically, the fourth radiating component 31 is coupled to the grounding point 50 and the feed point 40, with the feed point 40 coupling and exciting the fourth radiating component 31. This extends the low-frequency range of 690MHz-960MHz. This design allows the feed point 40 to effectively transmit signal energy to the fourth radiating component 31, thereby exciting the entire antenna's radiation process. By finely adjusting the position and parameters of the feed point 40, the antenna's excitation effect can be further optimized, improving its radiation efficiency and gain characteristics.

[0045] The sixth radiating component 33 is coupled to the second impedance device 215, and the seventh radiating component 34 is coupled to the third radiating component 23 to adjust the impedance. This connection method helps to introduce more impedance adjustment points in the antenna structure, thereby achieving fine control over the antenna performance. By adjusting the sixth radiating component 33, the seventh radiating component 34, and their coupling relationships with other radiating components, the impedance matching and bandwidth characteristics of the antenna can be further optimized. Furthermore, the second impedance device 215 can be rectangular, triangular, or circular, etc., as long as it can achieve a sudden impedance change; there are no restrictions on its shape.

[0046] Furthermore, the fifth radiating component 32 includes a sixth antenna stub 320, a seventh antenna stub 321, and an eighth antenna stub 322, which are arranged sequentially and coupled together. This extends the bandwidth to 690-960 / 1710-2170 / 2496-2690 / 3300-4200MHz and adjusts the standing wave ratio. This design enriches the antenna's radiation modes and helps achieve stable signal transmission across multiple frequency bands. By finely adjusting the length, shape, and coupling relationship between each antenna stub, the antenna's gain and bandwidth characteristics can be further optimized. The spacing between the sixth antenna stub 320 and the seventh antenna stub 321 ranges from 0.1mm to 1mm; the spacing between the seventh antenna stub 321 and the eighth antenna stub 322 also ranges from 0.1mm to 1mm. This spacing design helps control the coupling strength between the antenna stubs, thereby enabling fine-tuning of antenna performance. By adjusting the spacing, the impedance matching, gain, and bandwidth characteristics of the antenna can be further optimized.

[0047] Preferably, a first coupling gap 35 is formed between the fourth radiating component 31 and the fifth radiating component 32, the first coupling gap 35 ranging from 0.1 mm to 1.5 mm; a second coupling gap 36 is formed between the fifth radiating component 32 and the sixth radiating component 33, the second coupling gap 36 ranging from 5 mm to 10 mm; and a third coupling gap 37 is formed between the sixth radiating component 33 and the seventh radiating component 34, the third coupling gap 37 ranging from 5 mm to 10 mm. This coupling gap design helps to introduce more coupling effects into the antenna structure, thereby enhancing the antenna's radiation efficiency and bandwidth characteristics. By adjusting the size and position of each coupling gap, the antenna performance can be further optimized. Preferably, the sixth radiating component 33 includes two mutually perpendicular radiating branches to form a T-shape; the sixth radiating component 33 is coupled to the front impedance transformer to adjust the impedance and extend the bandwidth to 3300 MHz-4200 MHz. The seventh radiating component 34 is configured as a whole radiating stub, which is preferably S-shaped; the seventh radiating component 34 is coupled with the second high-frequency radiating stub to adjust the impedance and extend the bandwidth to 1710-2170 / 2496-2690 / 3300-4200MHz.

[0048] In summary, this invention provides a high-gain antenna comprising a substrate 10, a first radiating element 20, and a second radiating element 30. The first radiating element 20 is located on one side of the substrate 10, and the second radiating element 30 is located on the other side of the substrate 10. The first radiating element 20 includes a feed point 40, a ground point 50, and a first radiating component 21, a second radiating component 22, and a third radiating component 23. The second radiating element 30 includes a fourth radiating component 31, a fifth radiating component 32, a sixth radiating component 33, and a seventh radiating component 34. The fourth radiating component 31, the fifth radiating component 32, the sixth radiating component 33, and the seventh radiating component 34 are sequentially coupled and arranged on the substrate 10, and are coupled to the first radiating component 21, the second radiating component 22, and the third radiating component 23. This high-gain antenna not only enables the entire antenna to transmit and receive signals, but also widens the antenna bandwidth, enhances the antenna radiation efficiency, and reduces production costs.

[0049] 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.

[0050] 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 high gain antenna characterized by: The high-gain antenna includes a substrate, a first radiating element, a second radiating element, a feed point, and a ground point. The first radiating element and the second radiating element are respectively disposed on two sides of the substrate. The first radiating element and / or the second radiating element are electrically connected to the feed point and the ground point. The first radiating element and the second radiating element are disposed opposite to each other and coupled together.

2. The high-gain antenna of claim 1, wherein: Both the first radiation unit and the second radiation unit include a plurality of radiation components, and the plurality of radiation components of the first radiation unit and the plurality of radiation components of the second radiation unit are coupled together.

3. The high-gain antenna of claim 1, wherein: The first radiation unit includes a first radiation component, a second radiation component, and a third radiation component; the second radiation unit includes a fourth radiation component, a fifth radiation component, a sixth radiation component, and a seventh radiation component, wherein the fourth radiation component, the fifth radiation component, the sixth radiation component, and the seventh radiation component are sequentially coupled and arranged on the substrate, and are coupled and connected to the first radiation component, the second radiation component, and the third radiation component.

4. The high-gain antenna of claim 3, wherein: The first radiating component includes a first antenna stub and a second antenna stub, the first antenna stub and the second antenna stub are connected and form a first gap, and the end of the second antenna stub is electrically connected to the grounding point.

5. The high-gain antenna of claim 4, wherein: The second radiating component includes a third antenna stub and a fourth antenna stub, which are connected to form a second gap, and the end of the fourth antenna stub is electrically connected to the grounding point.

6. The high-gain antenna of claim 5, wherein: The first gap and the second gap are interconnected, and the grounding point is located between the first gap and the second gap.

7. The high-gain antenna of claim 4, wherein: The first radiating component further includes a fifth antenna stub, which is connected to the first antenna stub.

8. The high-gain antenna of claim 7, wherein: The first radiation unit further includes an impedance component, which includes a first impedance device and a second impedance device. The first impedance device and the second impedance device are connected, and the second impedance device is connected to the third radiation component.

9. The high-gain antenna of claim 8, wherein: The first impedance device gradually shrinks from the first end to the second end, and the second end is connected to the second impedance device.

10. The high-gain antenna of claim 9, wherein: The first impedance device is trapezoidal in shape; the second impedance device is configured as an impedance transformer.

11. The high-gain antenna of claim 8, wherein: The fourth radiating component is coupled to the grounding point and the feed point, and the feed point couples and excites the fourth radiating component. The sixth radiating component is coupled to the second impedance device, and the seventh radiating component is coupled to the third radiating component to adjust the impedance.

12. The high-gain antenna of claim 11, wherein: The fifth radiating component includes a sixth antenna stub, a seventh antenna stub, and an eighth antenna stub, which are arranged sequentially and coupled together.

13. The high-gain antenna of claim 12, wherein: The spacing between the sixth antenna stub and the seventh antenna stub ranges from 0.1 mm to 1 mm; the spacing between the seventh antenna stub and the eighth antenna stub ranges from 0.1 mm to 1 mm.

14. The high-gain antenna of claim 11, wherein: A first coupling gap is formed between the fourth radiating component and the fifth radiating component, the first coupling gap ranging from 0.1mm to 1.5mm; a second coupling gap is formed between the fifth radiating component and the sixth radiating component, the second coupling gap ranging from 5mm to 10mm; and a third coupling gap is formed between the sixth radiating component and the seventh radiating component, the third coupling gap ranging from 5mm to 10mm.

15. A mobile terminal device, characterized by: The mobile terminal device comprises the high-gain antenna of any one of claims 1-14.

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