Electronic device

Abstract

The invention discloses an electronic device which comprises a frame body, a first radiator and a second radiator are arranged on the frame body, a first breaking joint is arranged between the first radiator and the second radiator, and a second breaking joint is arranged at one end, away from the first radiator, of the second radiator. The first breaking joint and the second breaking joint are both arranged on the first side edge of the frame body, the length of the first side edge is larger than that of the second side edge of the frame body, and the first side edge is adjacent to the second side edge; wherein the first radiator is provided with a first ground point and a feeding point, and the feeding point is arranged between the first breaking joint and the first ground point; the second radiator is provided with a second ground point, and the current direction of the second radiator is opposite to that of the first radiator; wherein the vertical distance from one end, close to the second breaking joint, of the second radiator to the top of the frame body is smaller than a first value, and the value range of the first value is 11mm-15mm.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0002] With the development of communication technology, various communication electronic devices are being used more and more widely. It is well known that the efficiency of side-bezel antennas varies in different scenarios for electronic devices; for example, the efficiency of side-bezel antennas is lower in landscape mode than in portrait mode. To ensure transmission efficiency in landscape mode, it is usually necessary to improve the efficiency of the side-bezel antennas. However, improving antenna efficiency will result in an excessively high Specific Absorption Rate (SAR) value, leading to failure to meet SAR requirements. Therefore, the challenge lies in how to reduce the SAR value while maintaining antenna efficiency. Summary of the Invention

[0003] This application provides an electronic device to address the problem of reducing SAR values ​​while ensuring antenna efficiency.

[0004] In a first aspect, embodiments of this application provide an electronic device, including a frame, on which a first radiator and a second radiator are provided, a first slit is provided between the first radiator and the second radiator, and a second slit is provided at the end of the second radiator away from the first radiator, the first slit and the second slit are both provided on a first side of the frame, the length of the first side is greater than the length of the second side of the frame, and the first side is adjacent to the second side.

[0005] The first radiator has a first return point and a feed point, the feed point being located between the first gap and the first return point; the second radiator has a second return point, and the current direction of the second radiator is opposite to that of the first radiator.

[0006] Wherein, the vertical distance from the end of the second radiator near the second fracture to the top of the frame is less than a first value, and the first value ranges from 11mm to 15mm.

[0007] This application embodiment describes an electronic device comprising a frame, on which a first radiator and a second radiator are provided. A first gap is provided between the first radiator and the second radiator, and a second gap is provided at the end of the second radiator away from the first radiator. Both the first gap and the second gap are located on a first side of the frame, the length of which is greater than the length of the second side of the frame, and the first side and the second side are adjacent. The first radiator has a first return point and a feed point, the feed point being located between the first gap and the first return point. The second radiator has a second return point, and the current direction of the second radiator is opposite to that of the first radiator. The vertical distance from the end of the second radiator near the second gap to the top of the frame is less than a first value, the first value being in the range of 11mm to 15mm. In this way, because the current direction of the second radiator is opposite to that of the first radiator, an efficiency dip is introduced into the operating frequency band of the first radiator, causing the antenna efficiency of the first radiator to decrease by more than 3dB compared to when there is no suppression structure, achieving a low SAR effect. Simultaneously, in landscape mode, the user's finger can directly touch the second gap, causing the current of the second radiator to be disrupted, thus removing the efficiency dip caused by the second radiator and improving the antenna efficiency in landscape mode. Therefore, this embodiment can reduce the SAR value while maintaining antenna efficiency.

[0008] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0010] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0011] Figure 2 yes Figure 1 A schematic diagram of the working state of electronic devices in a free state;

[0012] Figure 3 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0013] Figure 4 This is a comparison chart of antenna efficiency of an electronic device provided in an embodiment of this application. Detailed Implementation

[0014] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0015] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0016] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0018] See Figures 1 to 4This application provides an electronic device, which includes: a frame 10, on which a first radiator 101 and a second radiator 102 are provided, a first slit 103 is provided between the first radiator 101 and the second radiator 102, and a second slit 104 is provided at the end of the second radiator 102 away from the first radiator 101, the first slit 103 and the second slit 104 are both provided on a first side of the frame 10, the length of the first side is greater than the length of the second side of the frame 10, and the first side is adjacent to the second side;

[0019] The first radiator 101 is provided with a first return point 1011 and a feed point 1012, wherein the feed point 1012 is located between the first gap 103 and the first return point 1011; the second radiator 102 is provided with a second return point 1021, and the current direction of the second radiator 102 is opposite to the current direction of the first radiator 101.

[0020] Wherein, the vertical distance from the end of the second radiator 102 near the second slit 104 to the top of the frame 10 is less than a first value, the first value being in the range of 11mm to 15mm.

[0021] In this application embodiment, the aforementioned electronic device can be a smart terminal such as a mobile phone, tablet, laptop, or watch. The following embodiments use a mobile phone as an example for illustration. Figure 1 As shown, the filled area in the middle of the frame 10 can be understood as the main ground of the mobile phone antenna. The first circuit point 1011 and the second circuit point 1021 are both grounded, that is, the first circuit point 1011 and the second circuit point 1021 are both connected to the main ground of the mobile phone antenna. The above-mentioned electronic device also includes a feed 105, one end of which is electrically connected to the feed point 1012, and the other end is electrically connected to the main ground of the mobile phone antenna.

[0022] Optionally, such as Figure 1 As shown, the electronic device is in landscape mode, with the top of the device on the right and the bottom on the left. The frame 10 can be the metal frame of a mobile phone, and the first radiator 101 and the second radiator 102 are located on one side of the frame 10. Region AR1 represents the area where the gamer's hand holds the frame 10 in landscape mode. The first radiator 101 is an antenna radiator located on the side near the top. The second radiator 102 can be understood as an efficiency suppression structure, or the radiating branch between the second return point 1021 and the second gap 104 can be understood as an efficiency suppression structure.

[0023] It should be noted that in the free state and the 5mm Body SAR test state, the efficiency suppression structure is in normal working state. At this time, the current direction of the second radiator 102 is opposite to the current direction of the first radiator 101, thereby introducing an efficiency dip in the operating frequency band of the first radiator 101, causing the antenna efficiency of the first radiator 101 to drop by more than 3dB compared with the case without the suppression structure, thus achieving the effect of low SAR.

[0024] It should be understood that in landscape mode, the user's hand will touch area AR1. Since the vertical distance from the end of the second radiator near the second slit to the top of the frame is less than the first value, the user's hand will directly contact the second slit 104, causing the current of the second radiator 102 to be disrupted. The efficiency pit caused by the second radiator 102 will be removed, thereby improving the antenna efficiency in landscape mode.

[0025] Optionally, the free state can be understood as the first radiator 101 and the second radiator 102 not being in contact with a human body, or it can be understood as the first radiator 101 and the second radiator 102 being in a suspended state.

[0026] Optionally, in some embodiments, the first radiator 101 described above may operate in inverted-FAntenna (IFA) mode.

[0027] This application embodiment describes an electronic device comprising a frame 10, on which a first radiator 101 and a second radiator 102 are provided. A first gap 103 is provided between the first radiator 101 and the second radiator 102, and a second gap 104 is provided at the end of the second radiator 102 away from the first radiator 101. Both the first gap 103 and the second gap 104 are located on a first side of the frame 10, the length of the first side being greater than the length of the second side of the frame 10, and the first side being adjacent to the second side. The first radiator 101 is provided with a first return point 1011 and a feed point 1012, the feed point 1012 being located between the first gap 103 and the first return point 1011. The second radiator 102 is provided with a second return point 1021, and the current direction of the second radiator 102 is opposite to the current direction of the first radiator 101. In this way, since the current direction of the second radiator 102 is opposite to that of the first radiator 101, an efficiency dip is introduced into the operating frequency band of the first radiator 101, causing the antenna efficiency of the first radiator 101 to decrease by more than 3dB compared to when there is no suppression structure, achieving a low SAR effect. At the same time, in landscape mode, the user's finger can directly touch the second gap 104, causing the current of the second radiator 102 to be disrupted, and the efficiency dip caused by the second radiator 102 will be removed, thereby improving the antenna efficiency in landscape mode. Therefore, this embodiment can reduce the SAR value while ensuring antenna efficiency.

[0028] Optionally, in this embodiment of the application, the length between the second return point 1021 and the second break 104 is a first length, which is between 1 / 4 wavelength and 3 / 8 wavelength of the resonant frequency of the first radiator 101.

[0029] In this embodiment of the application, by limiting the length between the second return point 1021 and the second gap 104 to between 1 / 4 wavelength and 3 / 8 wavelength of the resonant frequency of the first radiator 101, the efficiency pit can be placed within the operating frequency band of the first radiator 101. At this time, the second radiator 102 will reduce the antenna efficiency of the first radiator.

[0030] Optionally, such as Figure 2 As shown, the current in the second radiator is a 1 / 4 wavelength current that is opposite in direction to the current in the first radiator.

[0031] In this embodiment, arrow A indicates the current direction of the first radiator 101, and arrow B indicates the current direction of the second radiator 102.

[0032] Optionally, the location of the second location 1021 can be set according to actual needs.

[0033] For example, in some embodiments, such as Figure 1 As shown, the second return point 1021 is located at one end of the second radiator 102 near the first fracture 103.

[0034] Optionally, in this embodiment, the current of the second radiator 102 is a 1 / 4 wavelength current that is opposite in direction to the current on the first radiator 101.

[0035] Alternatively, the 1 / 4 wavelength current can be understood as the current at 1 / 4 wavelength of the resonant frequency of the first radiator 101.

[0036] It should be understood that in this embodiment, under normal operating conditions, the second radiator 102 has a unique electric field strength region in its second slit 104. By setting the position of the second slit 104, the user's finger can directly touch it in landscape mode, thus disrupting the unique electric field strength region and causing the 1 / 4 wavelength current of the second radiator 102 to be disrupted. The efficiency dip originally caused by the second radiator 102 is also completely removed. By setting the position of the first slit 103, the user's finger cannot touch it in landscape mode, and the user's finger will not affect the antenna efficiency of the first radiator 101. Therefore, in landscape mode, the antenna efficiency of the first radiator 101 will increase by 3dB, returning to the level without the second radiator 102, achieving a high-performance effect in landscape mode.

[0037] For example, in some embodiments, such as Figure 3 As shown, the second return point 1021 is located in the middle of the second radiator 102.

[0038] In this embodiment of the application, the second return point 1021 being located in the middle of the second radiator 102 can be understood as the second return point 1021 being located at the center of the second radiator 102; or, it can be understood as the second return point 1021 being located close to the center of the second radiator 102, for example, the distance between the second return point 1021 and the center of the second radiator 102 is less than a preset range.

[0039] Optionally, in this embodiment of the application, the current of the second radiator is a 1 / 2 wavelength current that is opposite in direction to the current on the first radiator.

[0040] Alternatively, the 1 / 2 wavelength current can be understood as the current at 1 / 2 wavelength of the resonant frequency of the first radiator 101.

[0041] Optionally, in some embodiments, the length of the second radiator 102 is a second length, which is between 1 / 2 wavelength and 5 / 8 wavelength of the resonant frequency of the first radiator.

[0042] Optionally, in some embodiments, the length between the second return point and the first break is a third length, which is between 1 / 8 and 1 / 4 of the wavelength of the resonant frequency of the first radiator.

[0043] It should be understood that in the embodiments of this application, the second radiator 102 has two electric field strength regions under normal operating conditions: a first slit 103 and a second slit 104. By setting the position of the second slit 104, in landscape mode, the user's finger can directly touch the second slit 104, thus disrupting the electric field strength region of the second slit 104. This disrupts the 1 / 2 wavelength reverse current distributed on the second radiator 102, and completely removes the efficiency dip originally caused by the second radiator 102. By setting the position of the first slit 103, the user's finger cannot touch the first slit 103 in landscape mode, and the user's finger will not affect the antenna efficiency of the first radiator 101. Therefore, in landscape mode, the antenna efficiency of the first radiator 101 will increase by 3dB, returning to the level without the second radiator 102, achieving a high-performance effect in landscape mode. Furthermore, since the electric field strength region of the first slit 103 still exists, and the length from the second return point 1021 to the first slit 103 is between 1 / 8 and 1 / 4 wavelength, there is a 1 / 4 wavelength current on this stub from the first slit 103 to the second return point 1021, and the direction of this 1 / 4 wavelength current is the same as the current direction of the first radiator 101. Thus, the second radiator 102 can be transformed from an efficiency suppression structure into a parasitic stub, further improving the antenna efficiency of the first radiator 101. Therefore, the embodiments of this application can achieve the results of suppressing SAR efficiency reduction in both the free state and the 5mm Body SAR test state, and improving efficiency and performance in the landscape gaming state.

[0044] Optionally, in some embodiments, the range of the first value can be 12.5mm to 13.5mm. For example, if the first value is 13mm, it can ensure that the user's finger can directly contact the second slit 104 in landscape mode, thereby making the efficiency suppression of the second radiator 102 ineffective and improving the antenna efficiency in landscape mode.

[0045] It should be understood that, in this embodiment of the application, the vertical distance from the end of the second radiator 102 near the second slit 104 to the top of the frame 10 is D1.

[0046] Optionally, in some embodiments, the vertical distance from one end of the second radiator 102 near the first slit 103 to the top of the frame 10 is greater than the first value.

[0047] In this embodiment, by setting the vertical distance from the end of the second radiator 102 near the first gap 103 to the top of the frame 10 to be greater than the first value, it can be ensured that in landscape mode, the user's finger will not touch the first gap 103, so that the antenna efficiency of the first radiator 101 will not be affected, thereby ensuring the antenna efficiency of the first radiator 101 in landscape mode.

[0048] It should be understood that, in this embodiment of the application, the vertical distance from the end of the second radiator 102 near the first slit 103 to the top of the frame 10 is D2.

[0049] Optionally, for different cases where the second radiator 102 is provided and not provided, the overall system efficiency of the frame antenna is as follows: Figure 4 As shown in Table 1, the frame antenna can be understood as an antenna structure including the first radiator 101.

[0050] Table 1:

[0051]

[0052] Combination Figure 4 As shown in Table 1, in the free state, when the second radiator 102 is set, there is a significant efficiency dip in the B39 operating frequency band of the frame antenna. Therefore, the 5mm Body SAR value is much lower than the antenna efficiency when the second radiator 102 is not set. However, in the landscape gaming hand test state, the efficiency dip is removed due to the touch of the gaming hand model, and its efficiency is consistent with that when the second radiator 102 is not set, achieving low SAR and high gaming hand performance.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, The device includes a frame, on which a first radiator and a second radiator are provided. A first slit is provided between the first radiator and the second radiator. A second slit is provided at the end of the second radiator away from the first radiator. Both the first slit and the second slit are located on a first side of the frame. The length of the first side is greater than the length of the second side of the frame. The first side and the second side are adjacent to each other. The first radiator has a first return point and a feed point, the feed point being located between the first gap and the first return point; the second radiator has a second return point, and the current direction of the second radiator is opposite to that of the first radiator. Wherein, the vertical distance from the end of the second radiator near the second fracture to the top of the frame is less than a first value, and the first value ranges from 11mm to 15mm.

2. The electronic device according to claim 1, characterized in that, The length between the second return point and the second fracture is the first length, which is between 1 / 4 wavelength and 3 / 8 wavelength of the resonant frequency of the first radiator.

3. The electronic device according to claim 1, characterized in that, The second location is set at one end of the second radiator near the first fracture.

4. The electronic device according to claim 3, characterized in that, The current in the second radiator is a 1 / 4 wavelength current that is opposite in direction to the current in the first radiator.

5. The electronic device according to claim 1, characterized in that, The second location is set in the middle of the second radiator.

6. The electronic device according to claim 5, characterized in that, The length of the second radiator is a second length, which is between 1 / 2 wavelength and 5 / 8 wavelength of the resonant frequency of the first radiator.

7. The electronic device according to claim 5, characterized in that, The length between the second return point and the first fracture is the third length, which is between 1 / 8 and 1 / 4 of the wavelength of the resonant frequency of the first radiator.

8. The electronic device according to claim 5, characterized in that, The current in the second radiator is a half-wavelength current that is opposite in direction to the current in the first radiator.

9. The electronic device according to claim 1, characterized in that, The first value is 13mm.

10. The electronic device according to any one of claims 1 to 9, characterized in that, The vertical distance from the end of the second radiator near the first fracture to the top of the frame is greater than the first value.

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