Electronic device
By setting the positional relationship between the frame radiator and the metal body in the electronic device, the metal body covers the reverse current area, the loss of the metal material structure to the antenna performance is solved and the radiation performance is improved.
Patent Information
- Application Number
- CN202421713017.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In electronic devices, when the metal structure is close to the antenna radiator, it leads to the performance loss of the antenna. How to reduce this performance loss has become a technical problem.
In electronic equipment, the positional relationship between the frame radiator and the metal body is set so that the metal body covers the current inverse area of the frame radiator, and the current intensity is weak in the current inverse area to reduce the influence of the metal body on radiation performance.
Through this design, the radiation performance of electronic devices is improved, which is specifically manifested as the Rad radiation efficiency increases by about 0.5dB and the Tot radiation efficiency increases by about 1dB.
Smart Images
Figure CN223194002U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of terminal technology, and in particular to an electronic device. Background Art
[0002] Some related technologies require the configuration of metal structures within electronic devices based on functional requirements. However, when the frame of an electronic device serves as an antenna radiator, proximity to the metal structure often results in performance degradation. Minimizing this performance loss has become a major technical challenge. Utility Model Content
[0003] The present disclosure provides an electronic device to solve the deficiencies in the related art.
[0004] According to an embodiment of the present disclosure, there is provided an electronic device, including:
[0005] A frame radiator, the frame radiator including an upper frame point;
[0006] Power feed, the power feed is electrically connected to the upper frame point, and the power feed is used to feed an electrical signal to excite the frame radiator to generate a preset resonant mode;
[0007] A metal body is arranged at intervals on the inner side of the frame radiator. In the inner and outer directions of the electronic device, the metal body covers the current reversal region of the frame radiator when the frame radiator is in the preset resonant mode.
[0008] Optionally, in the inward and outward directions of the electronic device, the current reversal region covers the center position of the metal body.
[0009] Optionally, the preset co-resonance mode is a loop resonance mode.
[0010] Optionally, the metal body covers the center position of the frame radiator.
[0011] Optionally, the frame radiator includes a first strip area, a second strip area, and a curved area connecting the first strip area and the second strip area;
[0012] The metal body is arranged close to the bending area, and the distance between the metal body and the bending area is uniform.
[0013] Optionally, the upper frame point is set at one end of the first strip area away from the bending area, and one end of the second strip area away from the bending area is grounded.
[0014] Optionally, the length of the branches of the frame radiator is greater than or equal to 4 times the length of the area covered by the metal body.
[0015] Optionally, the metal body includes a magnet, and the polarity arrangement direction of the magnet is set along the thickness direction of the electronic device.
[0016] Optionally, the distance between the metal body and the frame radiator is greater than or equal to 0.3 mm.
[0017] Optionally, a non-metallic shell is further included, the metal body is arranged in the non-metallic shell, and a part of the non-metallic shell is arranged between the metal body and the frame radiator.
[0018] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:
[0019] It can be seen from the above embodiments that the metal body in the present disclosure can cover the current reversal area when the frame radiator is in a preset resonant mode. By utilizing the relatively weak current intensity in the current reversal area, the influence of the metal body on the radiation performance of the frame radiator can be reduced, thereby improving the radiation performance.
[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0022] Figure 1 The figure is a schematic diagram showing a state of an electronic device according to an exemplary embodiment.
[0023] Figure 2 yes Figure 1 Schematic diagram of another state of the electronic device.
[0024] Figure 3 It is a partial schematic diagram of an electronic device according to an exemplary embodiment.
[0025] Figure 4 3 is a current distribution diagram of a frame radiator when it is in a loop resonance mode according to an exemplary embodiment.
[0026] Figure 5 This is a current distribution diagram when the frame radiator is in the 1 / 4 resonance mode in the related art.
[0027] Figure 6 FIG. 1 is an efficiency curve diagram of a frame radiator according to an exemplary embodiment and a frame radiator in related art. DETAILED DESCRIPTION
[0028] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
[0029] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0030] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."
[0031] Figure 1 is a schematic diagram showing a state of an electronic device according to an exemplary embodiment. Figure 2 yes Figure 1 Another state diagram of the electronic device in Figure 3 FIG. 1 is a partial schematic diagram of an electronic device according to an exemplary embodiment. Figure 1 and Figure 2 As shown, the electronic device can include a flat state and a folded state. By switching the electronic device between the flat state and the folded state, the electronic device can achieve compatibility with a large display area and portability. The electronic device includes a frame radiator 1, a feed 2, and a metal body 3. The metal body 3 can be multiple and distributed at the four corners of the upper left, lower left, upper right, and lower right of the electronic device when the electronic device is in the flat state. The metal body 3 may include a magnet, and the polarity arrangement direction of the magnet is set along the thickness direction of the electronic device. Subsequently, when the electronic device is switched to the folded state, the metal bodies 3 distributed at the upper left and lower left, and the metal bodies 3 at the upper right and lower right attract each other, thereby improving the stability of the electronic device in the folded state.
[0032] Taking the metal body 3 on the upper left as an example, this metal body 3 is spaced apart and disposed inside the frame radiator 1. The frame radiator 1 includes an upper frame point 11, and the feed 2 is electrically connected to this upper frame point 11. The electrical signal fed by the feed 2 excites the frame radiator 1 to produce a preset resonant mode covering the target frequency band. In the inward and outward directions of the electronic device, the metal body 3 can cover the current reversal region of the frame radiator 1 when it is in the preset resonant mode. By utilizing the relatively weak current intensity in the current reversal region, the impact of the metal body 3 on the radiation performance of the frame radiator 1 can be reduced, thereby improving the radiation performance.
[0033] For example, the preset resonance mode is the loop resonance mode. Figure 4 , a current distribution diagram of the frame radiator 1 when it is in the loop resonance mode is shown. At this time, the metal body 3 covers the current reverse region of the loop resonance mode, reducing the impact on the radiation performance of the frame radiator 1. Figure 5 This is a current distribution diagram when the frame radiator 1 is in 1 / 4 resonance mode in some related technologies. By comparison, it can be seen that in the inward and outward directions of the electronic device, Figure 5 The current intensity in the area covered by the metal body 3 is greater than Figure 4 The current intensity of the area covered by the metal body 3 is Figure 5 The negative impact brought by the metal body 3 is relatively large.
[0034] like Figure 6 As shown, taking the frame radiator 1 covering the Wifi2.4Ghz frequency band as an example, Figure 6 The efficiency curve of the frame radiator 1 in the related art and the efficiency curve of the frame radiator 1 in the technical solution of the present disclosure are shown in FIG. Figure 6 The brown curve and the black curve in FIG1 show that the Rad radiation efficiency of the frame radiator 1 in the technical solution disclosed herein is increased by about 0.5 dB compared with the Rad radiation efficiency in the related art. Figure 6 From the red curve and the green curve in FIG, the Tot radiation efficiency of the frame radiator 1 in the technical solution disclosed in the present invention is increased by about 1 dB compared with the Tot radiation efficiency in the related art.
[0035] The above description uses a foldable electronic device as an example to illustrate the arrangement and function of the metal body 3. In other embodiments, when the electronic device is non-foldable and includes a metal body 3 near the frame radiator 1, the technical solution of the present disclosure can help improve radiation performance. The above description uses a magnet as the metal body 3 for illustrative purposes. In other embodiments, the metal body 3 can be a metal block with other functions or other functional modules containing metal materials, and the present disclosure does not limit this.
[0036] In some embodiments, the current reversal region covers the center of the metal body 3 in the inward and outward directions of the electronic device, thereby maximally balancing the area of the metal body 3 on both sides of the current reversal region, which helps stabilize the radiation performance of the antenna structure. In some embodiments, the metal body 3 covers the center of the frame radiator 1. In this case, the center of the frame radiator 1 can be the middle of the current reversal region, or a portion of the current reversal region.
[0037] In some embodiments, the length of the branch of the frame radiator 1 is greater than or equal to four times the length of the area covered by the metal body 3. This increased branch length facilitates distinguishing between the branch locations of the current-intensive region and the current-reversing region on the frame radiator 1. It also reduces the area covered by the metal body 3 over the current-intensive region, or even eliminates it entirely, further improving radiation performance. The spacing between the metal body 3 and the frame radiator 1 can be greater than or equal to 0.3 mm, thereby reducing the impact of the metal body 3 on the radiation performance of the frame radiator 1. In other embodiments, the electronic device further includes a non-metallic housing, within which the metal body 3 is disposed, with a portion of the non-metallic housing positioned between the frame radiator 1 and the metal body 3 to secure the metal body 3 while maintaining clearance for the frame radiator 1. The non-metallic housing may fully or partially enclose the metal body 3, and this is not limited in this disclosure.
[0038] In each of the above embodiments, the frame radiator 1 includes a first strip region 12, a second strip region 13, and a curved region 14 connecting the first and second strip regions 12, 13. The metal body 3 is positioned near the curved region 14, and the spacing between the metal body 3 and the curved region 14 is uniform, which improves aesthetics. Furthermore, the upper frame point 11 is positioned at the end of the first strip region 12 facing away from the curved region 14, and the end of the second strip region 13 facing away from the curved region 14 is grounded. This increases the spacing between the ground terminal and the feed terminal of the frame radiator 1, lengthens the length of the branch used to radiate the preset resonant mode, and thus meets the matching requirements of the preset resonant mode without increasing the length of the frame radiator 1 as much as possible, thereby promoting the compactness of the electronic device.
[0039] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.
[0040] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. An electronic device, characterized in that: include: A frame radiator, the frame radiator including an upper frame point; Power feed, the power feed is electrically connected to the upper frame point, and the power feed is used to feed an electrical signal to excite the frame radiator to generate a preset resonant mode; A metal body is arranged at intervals on the inner side of the frame radiator. In the inner and outer directions of the electronic device, the metal body covers the current reversal region of the frame radiator when the frame radiator is in the preset resonant mode.
2. The electronic device according to claim 1, wherein: In the inward and outward directions of the electronic device, the current reversal region covers the center position of the metal body.
3. The electronic device according to claim 1, wherein The preset resonance mode is a loop resonance mode.
4. The electronic device according to claim 3, wherein: The metal body covers the center position of the frame radiator.
5. The electronic device according to claim 1, wherein The frame radiator includes a first strip area, a second strip area and a curved area connecting the first strip area and the second strip area; The metal body is arranged close to the bending area, and the distance between the metal body and the bending area is uniform.
6. The electronic device according to claim 5, characterized in that The upper frame point is arranged at one end of the first strip area away from the bending area, and one end of the second strip area away from the bending area is grounded.
7. The electronic device according to claim 1, wherein: The length of the branches of the frame radiator is greater than or equal to 4 times the length of the area covered by the metal body.
8. The electronic device according to claim 1, wherein: The metal body includes a magnet, and the polarity arrangement direction of the magnet is set along the thickness direction of the electronic device.
9. The electronic device according to claim 1, wherein: The distance between the metal body and the frame radiator is greater than or equal to 0.3 mm.
10. The electronic device according to claim 1, wherein It also includes a non-metallic shell, the metal body is arranged in the non-metallic shell, and a part of the non-metallic shell is arranged between the metal body and the frame radiator.