Antenna integrated structure and electronic device

Abstract

This disclosure provides an antenna integration structure and electronic device. The antenna integration structure includes an electronic device housing; multiple antenna elements spaced apart inside the electronic device housing; and isolation stubs disposed on the inner wall of the electronic device housing and located between two adjacent antenna elements, used to suppress mutual coupling between adjacent antenna elements. The antenna integration structure and electronic device of this disclosure, by designing isolation stubs integrated into the inner wall of the electronic device housing, utilizes the structure of the electronic device housing itself to achieve space reuse, freeing up the layout space of the antenna elements. This facilitates the miniaturization design of antenna elements, simplifies the antenna structure, and improves the performance of the antenna elements. It effectively solves the mutual coupling problem between multiple antenna elements, improves the isolation between two adjacent antenna elements, enhances the overall performance of the antenna integration structure, and meets the needs of modern electronic devices for miniaturized, high-performance wireless communication.

Description

Technical Field

[0001] This disclosure relates to the field of antenna technology, and in particular to an antenna integrated structure and electronic device. Background Technology

[0002] With the increasing system integration of electronic devices such as laptops and the trend towards miniaturization, the internal space of electronic devices is becoming more and more compact, leading to increasingly higher requirements for the performance of internal antennas. Traditional antenna designs often place the isolation structure on the antenna body, which limits the usable space on the antenna body. This not only restricts the miniaturization process of antennas but also increases the complexity of the design. Utility Model Content

[0003] This disclosure provides an antenna integration structure and electronic device to at least solve the above-mentioned technical problems existing in the prior art.

[0004] A first aspect of this disclosure provides an antenna integration structure, comprising:

[0005] Electronic device casing;

[0006] Multiple antenna elements are spaced apart and arranged inside the housing of the electronic device; and

[0007] An isolation stub is disposed on the inner wall of the electronic device housing and located between two adjacent antenna elements to suppress mutual coupling between the two adjacent antenna elements.

[0008] In one possible implementation, the isolated branch includes a connected first branch and a second branch; wherein,

[0009] The first branch extends toward one of the two adjacent antenna elements;

[0010] The second branch extends toward one of the two adjacent antenna elements.

[0011] In one possible embodiment, the isolation branch further includes a first connecting portion and a second connecting portion; wherein,

[0012] One end of the first connecting portion is connected to the first branch, and the other end is used for electrical connection with the structure inside the housing of the electronic device;

[0013] One end of the second connecting part is connected to the second branch, and the other end is used for electrical connection with the structure inside the electronic device housing.

[0014] In one embodiment, the first connecting portion and the second connecting portion are spaced apart, the second connecting portion passes through the first branch and connects to the second branch, and divides the first branch into a first segment and a second segment.

[0015] In one possible embodiment, the first connecting portion is perpendicular to the first branch, the second connecting portion is perpendicular to the second branch, and the first branch is parallel to the second branch.

[0016] In one embodiment, the isolation branch is made of metal and is integrally formed with the metal sputtering structure of the electronic device housing.

[0017] In one embodiment, the isolation stub is spaced apart from the antenna element.

[0018] In one possible implementation, the plurality of antenna elements includes a first antenna element and a second antenna element; wherein,

[0019] The first branch extends toward the first antenna element;

[0020] The second branch extends toward the second antenna element.

[0021] In one embodiment, the antenna element has an F-shaped structure.

[0022] A second aspect of this disclosure provides an electronic device having an antenna integration structure as described in any of the above embodiments.

[0023] In this disclosure, the antenna integrated structure is integrated into the inner wall of the electronic device housing by designing isolated stubs. It utilizes the structure of the electronic device housing itself to achieve space reuse, freeing up the layout space of the antenna unit itself. This is conducive to the miniaturization design of the antenna unit and simplifies the antenna structure, thereby improving the performance of the antenna unit. It effectively solves the mutual coupling problem between multiple antenna units, improves the isolation between two adjacent antenna units, and enhances the overall performance of the antenna integrated structure, meeting the needs of modern electronic devices for miniaturized and high-performance wireless communication.

[0024] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0025] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0026] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0027] Figure 1A schematic diagram of an overall structure of an antenna integration structure according to an exemplary embodiment of the present disclosure is shown;

[0028] Figure 2 A side view of an exemplary embodiment of the antenna integration structure of this disclosure is shown;

[0029] Figure 3 This illustration shows another overall structural schematic of an antenna integration structure according to an exemplary embodiment of the present disclosure.

[0030] The following are the labels in the diagram: 1. Electronic device casing; 2. Antenna unit; 3. Isolation branch; 21. First antenna unit; 22. Second antenna unit; 31. First branch; 32. Second branch; 33. First connecting part; 34. Second connecting part; 311. First segment; 312. Second segment. Detailed Implementation

[0031] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0032] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0033] Reference Figure 1 and Figure 2 As shown, an exemplary embodiment of the present disclosure discloses an antenna integration structure including an electronic device housing 1, a plurality of antenna elements 2 and an isolation stub 3. The plurality of antenna elements 2 are spaced apart inside the electronic device housing 1, and the isolation stub 3 is disposed on the inner wall of the electronic device housing 1 and located between two adjacent antenna elements 2, for suppressing mutual coupling between two adjacent antenna elements 2.

[0034] In this embodiment, the electronic device housing 1 refers to the structural housing used to house the internal components of the electronic device. Specifically, it can be made of metal or plastic, providing physical support for the antenna unit 2. The isolation branch 3 is disposed on the inner wall of the electronic device housing 1, that is, the isolation branch 3 is fixed to the inner surface of the electronic device housing 1. The isolation branch 3 can be fixed to the inner wall of the electronic device housing 1 using various methods, including but not limited to stamping, laser engraving, adhesive bonding, or screw fixing, depending on the material of the electronic device housing 1. It is located above the gap area between two adjacent antenna units 2, maintaining a certain distance from the antenna units 2, forming an electromagnetic isolation barrier to prevent direct electromagnetic coupling between the antenna units 2, optimize the radiation characteristics of the antenna integrated structure, and improve the isolation and overall performance of the antenna integrated structure. The isolation branch 3 is made of a metal material with good conductivity, such as copper, aluminum, or silver, or a composite material with electromagnetic shielding function. These materials can effectively reflect and absorb electromagnetic waves, thereby reducing electromagnetic energy transmission between adjacent antenna units 2 and reducing mutual coupling. In practical applications, appropriate materials can be selected to manufacture the isolation branch 3 according to the specific requirements of the electronic device and the cost budget. The shape of the isolation stub 3 can be, but is not limited to, strip, block, or sheet, and should be rationally designed according to the internal spatial layout of the electronic device and the arrangement of the antenna elements 2 to maximize the coverage of the coupling area between adjacent antenna elements 2. For example, a strip-shaped isolation stub 3 can be set, extending along the arrangement direction of the antenna elements 2, to precisely block the electromagnetic coupling path between the antenna elements 2, or a sheet-shaped or block-shaped isolation stub 3 can be used, with its shape adapted according to the specific position of the antenna elements 2 to ensure the isolation effect. The antenna elements 2 can be various common antenna forms, such as planar inverted-F antennas (PIFA), inverted-F antennas (IFA), monopole antennas, dipole antennas, etc., and the specific selection and design should be based on the communication frequency band and performance requirements of the electronic device. Multiple antenna elements 2 are arranged at intervals, and the interval distance is determined comprehensively based on factors such as the antenna's operating frequency band, size, and expected isolation effect. For ease of understanding, the embodiments shown in this disclosure all take the electronic device housing 1 as the housing of a laptop computer as an example, the antenna unit 2 is disposed inside the housing of the laptop computer, and the isolation branch 3 is specifically disposed on the D-shell of the laptop computer, wherein the D-shell of the laptop computer refers to the lower housing of the laptop computer that contacts the desktop.

[0035] In summary, the antenna integration structure disclosed herein integrates the isolated stub 3 into the inner wall of the electronic device housing 1, utilizes the structure of the electronic device housing 1 itself to achieve space reuse, frees up the layout space of the antenna unit 2, facilitates the miniaturization design of the antenna unit 2 and simplifies the antenna structure, and improves the performance of the antenna unit 2; it effectively solves the mutual coupling problem between multiple antenna units 2, improves the isolation between two adjacent antenna units 2, enhances the overall performance of the antenna integration structure, and meets the needs of modern electronic devices for miniaturized and high-performance wireless communication.

[0036] In one embodiment, the isolation stub 3 includes a first stub 31 and a second stub 32 connected together, the first stub 31 extending toward one of the two adjacent antenna elements 2, and the second stub 32 extending toward the other of the two adjacent antenna elements 2.

[0037] In this embodiment, the length, width, and shape of the first branch 31 and the second branch 32 are optimized according to the size of the antenna element 2 and the expected isolation effect to ensure effective coverage of the main coupling area between the antenna elements 2. The extension directions of the first branch 31 and the second branch 32 correspond to the radiation direction of the antenna element 2, forming an electromagnetic isolation barrier. It is understood that the first branch 31 and the second branch 32 can be arranged at an angle or in parallel, for example, the angle between them can be 90° to 180°, and the specific angle is adjusted according to the radiation direction of the adjacent antenna elements 2. The isolation branch 3 of the antenna integrated structure disclosed herein can simultaneously adapt to the radiation characteristics of the antenna elements 2 on both sides, effectively suppressing bidirectional coupling interference. Specifically, the first branch 31 specifically suppresses the radiation of the antenna element 2 closest to it, while the second branch 32 specifically suppresses the radiation of the antenna element 2 close to it. This bidirectional extension design forms an electromagnetic isolation barrier, effectively balancing the isolation effect on adjacent antenna elements 2.

[0038] Furthermore, in one embodiment, the isolation branch 3 further includes a first connecting portion 33 and a second connecting portion 34. One end of the first connecting portion 33 is connected to the first branch 31, and the other end is used for electrical connection with the structure inside the electronic device housing 1. One end of the second connecting portion 34 is connected to the second branch 32, and the other end is used for electrical connection with the structure inside the electronic device housing 1.

[0039] In this embodiment, the first connecting portion 33, the second connecting portion 34, the first branch portion 31, and the second branch portion 32 are integrally formed. Through the first connecting portion 33 and the second connecting portion 34, the isolation branch 3 forms a stable electrical connection with the grounding structure inside the electronic device housing 1, further improving the mechanical fixing strength of the isolation branch 3, reducing the impact of vibration on the isolation effect, and at the same time, utilizing the electromagnetic shielding effect of the grounding structure, further reducing the mutual coupling between the antenna elements 2.

[0040] In one embodiment, the first connecting portion 33 and the second connecting portion 34 are spaced apart, the second connecting portion 34 passes through the first branch 31 and connects to the second branch 32, and divides the first branch 31 into a first segment 311 and a second segment 312.

[0041] In this embodiment, the first connecting portion 33 is connected to the root of the first branch 31, and the second connecting portion 34 passes through the first branch 31 and connects to the second branch 32, dividing the first branch 31 into a first segment 311 and a second segment 312. This design spatially divides the first branch 31, further optimizing the electromagnetic isolation path and enhancing the isolation effect. The second connecting portion 34 penetrates the first branch 31 at a vertical or inclined angle, forming a through-type connection path. The connection point between the second connecting portion 34 and the second branch 32 is located in the middle section of the second branch 32. Therefore, the design of the second connecting portion 34 passing through the first branch 31 not only realizes the physical connection between the first branch 31 and the second branch 32, but also forms a segmented isolation structure, which can differentially suppress electromagnetic interference in different frequency bands or directions. This structure maintains the overall mechanical strength of the isolation branch 3, and expands the control dimension of the electromagnetic field distribution through the segmented branches, thereby improving the flexibility and effectiveness of mutual coupling suppression.

[0042] In one embodiment, the first connecting portion 33 is perpendicular to the first branch portion 31, the second connecting portion 34 is perpendicular to the second branch portion 32, and the first branch portion 31 is parallel to the second branch portion 32.

[0043] In this embodiment, the design of the first connecting part 33 being perpendicular to the first branch 31 and the second connecting part 34 being perpendicular to the second branch 32 makes the layout of the entire isolation branch 3 more compact and stable, further optimizing the electromagnetic isolation path and improving the isolation effect. In summary, this disclosure optimizes the spatial layout of the isolation branch 3 and improves the suppression effect of the isolation branch 3 on mutual coupling between adjacent antenna elements 2; the vertical connection and parallel arrangement structure reduces parasitic coupling between the connecting part and the branch, making the electromagnetic field distribution more uniform. At the same time, this structure simplifies the physical form of the isolation branch 3 and improves its layout adaptability in the limited space inside the electronic device. In addition, the parallel relationship between the first branch 31 and the second branch 32 ensures the extension direction of the isolation branch 3 between adjacent antenna elements 2, enhancing the directional suppression capability of mutual coupling signals. This design not only improves the electromagnetic compatibility of the antenna integrated structure, but also facilitates the miniaturization and integration of electronic devices.

[0044] In one embodiment, the isolation branch 3 is made of metal and is integrally formed with the metal sputtering structure of the electronic device housing 1.

[0045] In this embodiment, the metal material can be aluminum, copper, or their alloys. The isolation branch 3 is integrated with the electronic device housing 1, eliminating the need for intermediate connectors, simplifying the manufacturing process, and improving production efficiency. Simultaneously, the integrated structure enhances mechanical stability, eliminates resistance at the contact interface, and improves the reliability and consistency of the electromagnetic shielding effect. Furthermore, the use of metal materials ensures that the isolation branch 3 has good conductivity, effectively suppressing mutual coupling between antenna elements 2 and improving antenna performance. Specifically, the isolation branch 3 is integrally formed with the electronic device housing 1 through a metal sputtering process. First, the position and shape of the isolation branch 3 are pre-defined on the inner wall of the electronic device housing 1. Then, using vacuum sputtering technology, an alloy thin film is deposited at the pre-defined position. By controlling the sputtering time and power, the metal thin film is accumulated layer by layer until the required thickness of the isolation branch 3 structure is formed. Finally, the overall structure is heat-treated to ensure a tight bond between the isolation branch 3 and the housing.

[0046] In one embodiment, the isolation stub 3 is spaced apart from the antenna element 2.

[0047] In this embodiment, a non-contact spatial arrangement is formed between the isolation stub 3 and the antenna element 2 to avoid electromagnetic interference or short circuits caused by direct contact. This spacing not only significantly reduces mutual coupling effects but also ensures the normal operation of the antenna element 2 and optimizes antenna performance.

[0048] Reference Figure 3 As shown, in one possible embodiment, the plurality of antenna elements 2 include a first antenna element 21 and a second antenna element 22, a first branch 31 extending toward the first antenna element 21, and a second branch 32 extending toward the second antenna element 22.

[0049] In this embodiment, there are two antenna elements 2: a first antenna element 21 and a second antenna element 22. The first antenna element 21 is the main antenna element, and the second antenna element 22 is the auxiliary antenna element. A first branch 31 extends along a plane parallel to the inner wall of the housing towards the radiation area of ​​the first antenna element 21, and a second branch 32 extends in the opposite direction towards the radiation area of ​​the second antenna element 22. The first branch 31 maintains a preset distance from the first antenna element 21, and the second branch 32 maintains the same distance from the second antenna element 22. This targeted design effectively covers the coupling path between the antenna elements 2, further improving the isolation effect.

[0050] In one embodiment, the antenna element 2 has an F-shaped structure.

[0051] In this embodiment, antenna element 2 adopts an F-type structure, preferably a PIFA antenna, which can achieve better radiation performance and impedance matching within a limited space, while reducing the antenna size to meet the miniaturization requirements of electronic devices. Furthermore, the F-type antenna element 2 has good broadband characteristics, enabling it to cover a wider frequency band and improve communication performance.

[0052] This disclosure also provides an electronic device having an antenna integration structure as described in any of the above embodiments.

[0053] In this embodiment, the electronic device can be, but is not limited to, a laptop, a tablet, or a mobile phone. Taking a laptop as an example, two antenna units 2 are installed inside the laptop casing, namely a first antenna unit 21 and a second antenna unit 22. These two antenna units 2 are arranged at a certain distance to meet the WLAN communication requirements of the laptop. A first branch 31 extends towards the first antenna unit 21, covering the main coupling path between the first antenna unit 21 and the second antenna unit 22; a second branch 32 extends towards the second antenna unit 22, covering the main coupling path between the first antenna unit 21 and the second antenna unit 22. This design allows the isolation branch 3 to block electromagnetic signals from two directions, significantly reducing mutual coupling effects, while better adapting to the layout requirements of different antenna units 2.

[0054] For ease of understanding, one possible implementation is provided here: the overall dimensions of the first antenna element 21 and the second antenna element 22 can be 25×8×0.4mm. Both antenna elements 21 and 22 are made of FR-4 substrate with a dielectric constant of 4.3 and a loss tangent of 0.025. In actual production, comparative simulations were conducted on a laptop computer. After the isolation stub 3 was integrally formed with the metal sputtering structure on the D-shell, the isolation of the two antenna elements 2 was optimized from less than -10dB to approximately less than -23dB in the 2.4–2.5GHz frequency band. In the 5.15–5.85GHz and 5.925–7.125GHz frequency bands, the isolation of the two antenna elements 2 improved from less than -8dB to less than -22dB, significantly optimizing the isolation of the laptop antenna elements 2. Ultimately, the integrated antenna structure can cover the entire 2.4GHz, 5GHz, and WiFi-6E frequency bands, and the impedance matching of the laptop WLAN antenna is good, meeting the actual operating requirements of a laptop computer.

[0055] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0056] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," and "above" are used herein to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatial relative terms include not only the orientation of the component as depicted in the figures but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0057] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0058] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in sequences other than those illustrated or described herein.

[0059] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Furthermore, those skilled in the art will understand that this disclosure is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed by this disclosure. The scope of protection of this disclosure is defined by the appended claims and their equivalents.

Claims

1. An antenna integrated structure, characterized by, include: Electronic device housing (1); Multiple antenna units (2) are spaced apart inside the housing (1) of the electronic device; as well as An isolation stub (3) is disposed on the inner wall of the electronic device housing (1) and located between two adjacent antenna units (2) to suppress mutual coupling between two adjacent antenna units (2).

2. The antenna integrated structure of claim 1, wherein, The isolated branch (3) includes a connected first branch (31) and a second branch (32); wherein, The first branch (31) extends toward one of the two adjacent antenna elements (2); The second branch (32) extends toward one of the two adjacent antenna elements (2).

3. The antenna integrated structure of claim 2, wherein, The isolation branch (3) further includes a first connecting part (33) and a second connecting part (34); wherein, One end of the first connecting part (33) is connected to the first branch (31), and the other end is used for electrical connection with the structure inside the electronic device housing (1); One end of the second connecting part (34) is connected to the second branch (32), and the other end is used for electrical connection with the structure inside the electronic device housing (1).

4. The antenna integrated structure of claim 3, wherein, The first connecting part (33) and the second connecting part (34) are spaced apart. The second connecting part (34) passes through the first branch (31) and connects with the second branch (32), and divides the first branch (31) into a first segment (311) and a second segment (312).

5. The antenna integrated structure according to claim 3 or 4, characterized in that, The first connecting part (33) is perpendicular to the first branch (31), the second connecting part (34) is perpendicular to the second branch (32), and the first branch (31) is parallel to the second branch (32).

6. The antenna integrated structure of claim 5, wherein, The isolation branch (3) is made of metal material and is integrally formed with the metal sputtering structure of the electronic device housing (1).

7. The antenna integrated structure of claim 1, wherein, The isolation stub (3) is spaced apart from the antenna unit (2).

8. The antenna integrated structure of claim 2, wherein, The plurality of antenna elements (2) include a first antenna element (21) and a second antenna element (22); wherein, The first branch (31) extends toward the first antenna element (21); The second branch (32) extends toward the second antenna element (22).

9. The antenna integrated structure of claim 1, wherein, The antenna unit (2) has an F-shaped structure.

10. An electronic device, comprising: It is provided with an antenna integration structure as described in any one of claims 1-9.

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