A terminal antenna and mobile terminal that reduces head and hand height

Abstract

This invention provides a terminal antenna that reduces the impact of human head and hand on the antenna. The terminal antenna includes a feed point, a ground point, a first stub trace, a second stub trace, and a third stub trace. An opening is provided between the first and third stub traces, and the first and second stub traces are symmetrical about the opening. The first and second stub traces are connected to form a first slot, and the third stub trace has a second slot. Adjusting the first and second slots controls the frequency band of the terminal antenna. This terminal antenna that reduces the impact of human head and hand on the antenna solves the problem of the significant influence of human head and hand on the antenna, improves the antenna performance in the presence of human head and hand, and reduces the impact of human head and hand on the antenna.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a terminal antenna and mobile terminal that reduces head and hand height. 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] The telecommunications industry is developing rapidly, and domestically produced mobile phones are gradually breaking through the limitations of domestically produced chips, creating unprecedented opportunities for the domestic mobile communications industry. This also means that domestically produced mobile phones will usher in a brilliant future in the global market. Today, mobile phones have become an indispensable daily necessity. Users' demands for mobile phone transmission speed and quality are also increasing. As a key component for mobile phones to access the internet, the performance of the antenna directly affects the user experience. With the increasing miniaturization of electronic devices, the integration of antennas is also constantly improving. Therefore, under these circumstances, there is an urgent need for a highly integrated, high-performance antenna to meet user needs.

[0004] In view of this, it is indeed necessary to propose a terminal antenna and mobile terminal that reduces the head and hand height of the user. Utility Model Content

[0005] The purpose of this invention is to provide a terminal antenna that reduces the impact of human head and hand, thereby solving the problem of the significant influence of human head and hand on the antenna, improving the antenna performance in the case of human head and hand, and reducing the impact of human head and hand on the antenna.

[0006] To solve the above-mentioned technical problems, this utility model provides a terminal antenna that reduces the head and hand position. The terminal antenna includes a feed point, a ground point, a first stub trace, a second stub trace, and a third stub trace. An opening is provided between the first stub trace and the third stub trace, and the first stub trace and the second stub trace are symmetrical about the opening. The first stub trace and the second stub trace are connected to form a first slot, and the third stub trace has a second slot. Adjusting the first slot and the second slot can control the frequency band of the terminal antenna.

[0007] As a further improvement of this utility model, the second branch wiring is connected to the first branch wiring and the third branch wiring, and the second branch wiring has a third slot, which is connected to the first slot.

[0008] As a further improvement of this utility model, the terminal antenna further includes a first radiating trace and a second radiating trace, wherein the first radiating trace is located below the first stub trace and is connected to the first stub trace; and the second radiating trace is located below the second stub trace and is connected to the second stub trace.

[0009] As a further improvement of this utility model, the first radiating trace and the second radiating trace are symmetrically arranged with respect to the opening.

[0010] As a further improvement of this utility model, the power supply point is electrically connected to the first branch line, and the grounding point is electrically connected to the second branch line.

[0011] As a further improvement of this utility model, the length of the first branch line is in the range of 25.73mm±0.1, and the length of the second branch line is in the range of 30.28mm±0.1.

[0012] As a further improvement of this utility model, the width of the first groove is 2.80mm±0.1mm, and the width of the second groove is 0.60mm±0.1mm.

[0013] As a further improvement of this utility model, the frequency band controlled by the tail position of the first stub is 1710MHz-2690MHz, and the third stub is configured to control the bandwidth of low, medium and high frequencies as well as the antenna that is biased towards low or high frequencies.

[0014] As a further improvement of this utility model, the tail position of the second branch line is controlled to be biased towards low frequency or high frequency; the first slot is controlled to be biased towards medium frequency or low frequency or high frequency; and the second slot is controlled to be biased towards low frequency or low frequency or high frequency.

[0015] The purpose of this invention is to provide a mobile terminal that can better utilize the aforementioned terminal antenna designed to reduce head and hand height.

[0016] To solve the above-mentioned technical problems, this utility model provides a mobile terminal, which includes the aforementioned terminal antenna that lowers the head and hands.

[0017] This invention provides a terminal antenna that reduces the impact of human head and hand on the antenna. The terminal antenna includes a feed point, a ground point, a first stub trace, a second stub trace, and a third stub trace. An opening is provided between the first and third stub traces, and the first and second stub traces are symmetrical about the opening. The first and second stub traces are connected to form a first slot, and the third stub trace has a second slot. Adjusting the first and second slots controls the frequency band of the terminal antenna. This terminal antenna that reduces the impact of human head and hand on the antenna solves the problem of the significant influence of human head and hand on the antenna, improves the antenna performance in the presence of human head and hand, and reduces the impact of human head and hand on the antenna. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the terminal antenna for reducing head and hand height according to this utility model.

[0019] The labels in the attached figures are explained as follows:

[0020] First branch line 10, second branch line 20, third branch line 30, feed point 40, grounding point 50, opening 60, first slot 11, second slot 21, third slot 31, first radial line 70, second radial line 80. Detailed Implementation

[0021] The following detailed description of the head-and-hand-reducing terminal antenna proposed in this utility model, in conjunction with the accompanying drawings and specific embodiments, provides further insight. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, intended only 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.

[0022] This invention provides a terminal antenna that reduces head and hand movement, which can be used in mobile terminals such as mobile phones and small tablets.

[0023] like Figure 1 As shown, the terminal antenna for reducing head and hand height includes a feed point 40, a ground point 50, a first stub trace 10, a second stub trace 20, and a third stub trace 30. An opening 60 is provided between the first stub trace 10 and the third stub trace 30, and the first stub trace 10 and the second stub trace 20 are symmetrical about the opening 60. The first stub trace 10 and the second stub trace 20 are connected to form a first slot 11, and the third stub trace 30 has a second slot 21. Adjusting the first slot 11 and the second slot 21 controls the frequency band of the terminal antenna.

[0024] By adopting this design, the terminal antenna of this invention, which reduces the impact of human heads and hands on the antenna, can solve the problem of the significant influence of human heads and hands on the antenna, improve the antenna performance in the head-and-hand position, and reduce the impact of human heads and hands on the antenna. In other words, it not only improves the problem of large performance differences between the left and right sides of the antenna when the head and hands are on the left, but also effectively improves the overall performance efficiency of the antenna.

[0025] Furthermore, the second stub trace 20 is connected to the first stub trace 10 and the third stub trace 30. The second stub trace 20 has a third slot 31, which communicates with the first slot 11. The terminal antenna also includes a first radiating trace 70 and a second radiating trace 80. The first radiating trace 70 is located below and connected to the first stub trace 10; the second radiating trace 80 is located below and connected to the second stub trace 20. The first radiating trace 70 and the second radiating trace 80 are symmetrically arranged about the opening 60. The feed point 40 is electrically connected to the first stub trace 10, and the grounding point 50 is electrically connected to the second stub trace 20.

[0026] This invention optimizes the antenna design by reducing the impact of the human head and hands on the antenna. Through adjustments to the first slot 11, the second slot 21, the first stub trace 10, the second stub trace 20, and the third stub trace 30, the overall full-band bandwidth of the antenna is covered. The opening 60 is configured as the location of a USB interface opening 60. Using this opening 60 as a reference, the antennas on both sides of the opening 60 are kept as symmetrical as possible, thus effectively reducing the impact of the human head and hands on the antenna.

[0027] The terminal antenna of this invention is attached to the bottom of a mobile terminal, such as a mobile phone, i.e., the bottom where the user holds the phone. The antenna as a whole is symmetrical about the line containing the USB opening 60, which can effectively reduce the impact of the user's head and hands on the overall performance of the antenna. In addition, the antennas on the left and right sides of the terminal antenna, near the palm, are designed to avoid the user's head and hands, which can effectively reduce the impact of the user's head and hands on the antenna. Specifically, motors are generally located below the first radiating line 70 and the second radiating line 80 of the terminal antenna. Avoiding these motors not only effectively improves the overall performance of the antenna, but also, in subsequent testing, it was found that the antenna avoidance design of the first radiating line 70 and the second radiating line 80 around the motors, as well as their symmetry about the opening 60, can effectively further improve the performance of the user's head and hands.

[0028] The avoidance design of the first radiating trace 70 and the second radiating trace 80 in this invention can improve the overall head and hand retraction performance of the antenna. Head and hand retraction data is one of the antenna performance indicators, and its retraction is closely related to head and hand performance. A smaller retraction results in better head and hand data, while a larger retraction results in worse data. In other words, the greater the influence of the head and hand on the antenna, the larger the retraction difference. For example, if the overall head and hand measurement is 18 when the antenna is free, and 10 when the antenna is asymmetrical, the retraction difference is 8; if the antenna is symmetrical, the measurement is 11, and the retraction difference is 7. A retraction difference of 7 is smaller than a retraction difference of 8, therefore the antenna performance is improved.

[0029] Preferably, the length of the first stub trace 10 is within the range of 25.73 mm ± 0.1 mm, and the length of the second stub trace 20 is within the range of 30.28 mm ± 0.1 mm. The width of the first slot 11 is within the range of 2.80 mm ± 0.1 mm, and the width of the second slot 21 is within the range of 0.60 mm ± 0.1 mm. The frequency band controlled by the tail position of the first stub trace 10 is 1710 MHz - 2690 MHz, and the third stub trace 30 is configured to control the bandwidth of low, mid, and high frequencies, as well as the antenna biased towards low or high frequencies. The tail position of the second stub trace 20 controls the bias towards low or high frequencies; the first slot 11 controls the mid-frequency, biased towards low or high frequencies; and the second slot 21 controls the low frequency, biased towards low or high frequencies.

[0030] Specifically, the overall low, medium, and high frequencies of the antenna are controlled by adjusting the dimensions of the first slot 11 and the second slot 21. Similarly, the low, medium, and high frequencies are controlled by adjusting the dimensions of the first stub trace 10 and the second stub trace 20. Furthermore, the first radiating trace 70 and the second radiating trace 80 are designed to avoid interference, ensuring overall antenna efficiency while maintaining symmetry about the opening 60, thereby reducing the impact of the antenna's head and hands. Further, the tail of the first stub trace 10 primarily controls the medium-high frequency (1710MHz-2690MHz) or slightly lower or higher frequencies, achieving optimal microwave radiation efficiency in a free state. If the first stub trace 10 is too long, its antenna efficiency will not increase, and the impact of the head and hands will increase; if it is too short, the free efficiency will decrease. The third slot 31 is used to control the intermediate frequency (1710MHz) or slightly lower or higher frequencies. The first slot 11 is used to control the intermediate frequency (1710MHz-2170MHz) or slightly lower or higher frequencies, and simultaneously controls the antenna's S11 depth and width. The third stub, 30, is also used to control the low, medium, and high bandwidth, as well as the frequency bias towards lower or higher frequencies. The second stub, 20, is used to control the low frequency (900MHz) or bias towards lower or higher frequencies, and its microwave radiation efficiency is optimal in free state. If the second stub, 20, is too long, the overall antenna efficiency will not increase, and the influence of the antenna head and hands will increase; if it is too short, the antenna's free efficiency will decrease.

[0031] In summary, this utility model provides a terminal antenna that reduces the impact of human head and hand on the antenna. The terminal antenna includes a feed point 40, a ground point 50, a first stub trace 10, a second stub trace 20, and a third stub trace 30. An opening 60 is provided between the first stub trace 10 and the third stub trace 30, and the first stub trace 10 and the second stub trace 20 are symmetrical about the opening 60. The first stub trace 10 and the second stub trace 20 are connected to form a first slot 11, and the third stub trace 30 has a second slot 21. Adjusting the first slot 11 and the second slot 21 controls the frequency band of the terminal antenna. This utility model's terminal antenna that reduces the impact of human head and hand on the antenna solves the problem of the significant influence of human head and hand on the antenna, improves the antenna performance in the presence of human head and hand, and reduces the impact of human head and hand on the antenna.

[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 for reducing head of human, characterized by: The terminal antenna for reducing head and hand height includes a feed point, a ground point, a first stub trace, a second stub trace, and a third stub trace. An opening is provided between the first stub trace and the third stub trace, and the first stub trace and the second stub trace are symmetrical about the opening. The first stub trace and the second stub trace are connected to form a first slot, and the third stub trace has a second slot. Adjusting the first slot and the second slot can control the frequency band of the terminal antenna.

2. The head-top terminal antenna of claim 1, wherein: The second branch wiring is connected to the first branch wiring and the third branch wiring. The second branch wiring has a third slot, which is connected to the first slot.

3. The head-top terminal antenna of claim 2, wherein: The terminal antenna further includes a first radiating trace and a second radiating trace. The first radiating trace is located below the first stub trace and is connected to the first stub trace. The second radiating trace is located below the second stub trace and is connected to the second stub trace.

4. The head-top terminal antenna of claim 3, wherein: The opening is located at the midpoint between the first radiating trace and the second radiating trace.

5. The head-top terminal antenna of claim 4, wherein: The power supply point is electrically connected to the first branch wiring, and the grounding point is electrically connected to the second branch wiring.

6. The head-top terminal antenna of claim 5, wherein: The length of the first branch trace is 25.73 mm ± 0.1 mm, and the length of the second branch trace is 30.28 mm ± 0.1 mm.

7. The terminal antenna for reducing head effect of a human according to claim 6, wherein: The width of the first groove ranges from 2.80 mm ± 0.1 mm, and the width of the second groove ranges from 0.60 mm ± 0.1 mm.

8. The terminal antenna for reducing head effect of a human according to claim 7, wherein: The frequency band controlled by the tail position of the first stub is 1710MHz-2690MHz, and the third stub is configured to control the bandwidth of low, medium and high frequencies as well as the antenna that is biased towards low or high frequencies.

9. The terminal antenna for reducing head effect of a human according to claim 8, wherein: The tail position of the second branch line is controlled to be biased towards low or high frequency; the first slot is controlled to be biased towards medium frequency, low or high frequency; the second slot is controlled to be biased towards low frequency, low or high frequency.

10. A mobile terminal, characterized in that: The mobile terminal includes the terminal antenna for reducing head and hand height as described in any one of claims 1-9.

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