Antenna structure and electronic equipment

Abstract

The invention relates to an antenna structure and electronic equipment. The antenna structure comprises a radiator, wherein the radiator comprises an upper frame point; a feed end, wherein the feed end is electrically connected to the upper frame point; the metal piece comprises a cavity and a radiation opening communicating the inside and the outside of the cavity, and the radiator forms at least one part of the metal piece or is suspended in the cavity.

Description

Technical Field

[0001] The present disclosure relates to the field of terminal technology, and in particular to an antenna structure and an electronic device. Background Art

[0002] Currently, the technology of using the frame of an electronic device as an antenna radiator is mature, but the need to cut a slit in the frame has caused a certain visual impact. Moreover, with the quiet popularity of the all-metal integrated body design concept, designers need to seek new antenna solutions when the frame cannot be used as an antenna.

[0003] The cavity antenna does not require a frame, which helps maintain the all-metal properties of the entire device's back cover, making it one of the options for the entire device's antenna solution. Summary of the Invention

[0004] The present disclosure provides an antenna structure and an electronic device to address the deficiencies in the related art.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an antenna structure, including:

[0006] a radiator, the radiator including an upper frame point;

[0007] a feeding end, the feeding end being electrically connected to the upper frame point;

[0008] The metal piece includes a cavity and a radiation opening communicating with the inside and outside of the cavity. The radiator forms at least a part of the metal piece or is suspended in the cavity.

[0009] Optionally, the metal part includes a first metal sheet, a second metal sheet and a conductive side wall, the first metal sheet and the second metal sheet are stacked and spaced apart, the conductive side wall is connected between the first metal sheet and the second metal sheet to enclose the cavity, and the conductive side wall forms the radiation opening.

[0010] Optionally, the first metal sheet is the radiator; and the second metal sheet is the first metal layer on the back of the display screen.

[0011] Optionally, the first metal sheet is the radiator; the second metal sheet is the second metal layer on the surface of the circuit board,

[0012] Optionally, the upper frame point is located inside the cavity; or the upper frame point is located outside the cavity; or the conductive side wall further forms an avoidance opening, and the upper frame point is located in the area of ​​the first metal sheet corresponding to the avoidance opening.

[0013] Optionally, a portion of the edge of the first metal sheet is a grounding edge, and the grounding edge is different from the edge of the first metal sheet corresponding to the radiation opening.

[0014] Optionally, one of the first metal sheet and the second metal sheet is the first metal layer on the back of the display screen, and the other is the second metal layer on the surface of the circuit board.

[0015] According to a second aspect of the embodiments of the present disclosure, an electronic device is provided, comprising the antenna structure as described in any one of the above embodiments.

[0016] Optionally, it further includes a display screen and a metal battery cover, wherein the display screen is connected to the metal battery cover, and the antenna structure is located between the metal battery cover and the display screen;

[0017] The radiator is part of the metal part, and the radiator is grounded to the metal battery cover. The display screen includes a first metal layer arranged on the non-display side, the first metal layer is stacked and spaced apart from the radiator, and the first metal layer is part of the metal part.

[0018] Optionally, the display screen includes a display area and a non-display area surrounding the display area;

[0019] The radiation opening faces a lower area of ​​the non-display area.

[0020] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0021] It can be seen from the above embodiments that in the present disclosure, on the one hand, the radiator can generate its own current pattern, and at the same time can stimulate the cavity to generate a current pattern, thereby realizing the fusion between the radiator antenna and the cavity antenna, which is beneficial to expanding the bandwidth of the antenna structure. At the same time, the antenna structure does not need to open an antenna gap on the outer frame of the electronic device configured with the antenna structure, which is beneficial to realizing a seamless outer frame of the electronic device and improving the aesthetics of the electronic device.

[0022] 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

[0023] 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.

[0024] Figure 1 The figure is a schematic structural diagram of an antenna structure according to an exemplary embodiment.

[0025] Figure 2is a schematic cross-sectional view showing another antenna structure according to an exemplary embodiment.

[0026] Figure 3 yes Figure 2 Schematic diagram of the antenna structure in the figure.

[0027] Figure 4 is based on Figure 2 S11 simulation curve of the medium antenna structure.

[0028] Figure 5 is based on Figure 2 Efficiency simulation curve of the antenna structure.

[0029] Figure 6 The figure is an exploded schematic diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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."

[0033] Figure 1 FIG. 1 is a schematic structural diagram of an antenna structure according to an exemplary embodiment. Figure 1As shown, the antenna structure includes a radiator 1, a metal part 2 and a feeding end. The radiator 1 includes an upper frame point 11, which is electrically connected to the feeding end to feed electromagnetic wave signals to the radiator 1 through the feeding end or to feed out the electromagnetic wave signals received by the radiator 1. The metal part 2 includes a cavity 21 and a radiation opening 22 connecting the inside and outside of the cavity 21. The radiator 1 can be suspended in the cavity 21. The suspended setting of the radiator 1 can be understood as a non-metallic medium being set between the radiator 1 and each inner wall of the cavity 21, such as a flexible non-conductive medium, and the radiation opening 22 is Figure 1 The whole-surface opening shown in the figure, or in other examples, it can also be a slit opening. Based on this, by arranging the radiator 1 in the cavity 21, the current on the radiator 1 will be coupled to the inner surface of the cavity 21 to generate current, and then the exciter cavity 21 will generate a corresponding current mode, thereby realizing the fusion between the current modes of the radiator 1 and the cavity 21, which is beneficial to expanding the bandwidth of the antenna structure. The electromagnetic wave energy generated by the radiator 1 and the electromagnetic wave energy generated by the cavity 21 itself can both be radiated to the outside through the radiation opening 22. In other embodiments, the radiator 1 can be at least a part of the metal part 2. Based on this, on the one hand, the radiator 1 can generate its own current mode, and at the same time can excite the cavity 21 to generate a current mode, thereby realizing the fusion between the current modes of the radiator 1 and the cavity 21, which is beneficial to expanding the bandwidth of the antenna structure.

[0034] In some embodiments, the metal member 2 may be an integral structural member. In other embodiments, such as Figure 2 and Figure 3 As shown, the metal member 2 may include a first metal sheet 23, a second metal sheet 24, and a conductive sidewall 25. The first metal sheet 23 and the second metal sheet 24 are stacked and spaced apart, and the conductive sidewall 25 is electrically connected between the first metal sheet 23 and the second metal sheet 24. The first metal sheet 23, the second metal sheet 24, and the conductive sidewall 25 cooperate to form a cavity 21, and a radiation opening 22 formed by the conductive sidewall 25 connects the inside and outside of the cavity 21. Compared to the metal member 2 being an integrated structural member, the metal member 2 adopts a split structure. This facilitates the reuse of metal parts provided within the electronic device as part of the metal member 2 when the antenna structure is applied to the electronic device, thus simplifying the internal structure of the electronic device.

[0035] For example, the first metal sheet 23 can be used as the radiator 1, and the second metal sheet 24 can be the first metal layer on the back of the display screen. In this way, the first metal layer on the back of the display screen can be reused to simplify the internal structure of the electronic device. Taking this specific embodiment as an example, the antenna structure is simulated by software, and the following is obtained: Figure 4 The S11 curve of the antenna structure shown, and Figure 5The efficiency curve is shown in Figure 2. Figure 4 As shown in FIG, within a frequency range less than 3 GHz, multiple low-frequency resonances and multiple mid- and high-frequency resonances can be generated, thus widening the frequency band. Figure 5 As shown, at low-frequency resonance and mid-high-frequency resonance, the antenna efficiency reaches above -9dB, meeting conventional communication requirements.

[0036] For another example, the first metal sheet 23 can be the radiator 1, the second metal sheet 24 can be the second metal layer on the surface of the circuit board, and the circuit board can be any circuit board in the electronic device configured with the antenna structure, such as a sub-board or a main board. In this way, part of the circuit board structure can be reused, which is conducive to optimizing the internal layout of the electronic device.

[0037] When the radiator 1 is a part of the metal part 2, the upper frame point 11 of the radiator 1 can be set on the inner side of the cavity 21, or the upper frame point 11 can be set on the outer side of the cavity 21, or Figure 3 As shown, the conductive side wall 25 can also form an avoidance opening 26, and the upper frame point 11 is set at the area of ​​the first metal sheet 23 corresponding to the avoidance opening 26. In other words, the upper frame point 11 can be exposed through the avoidance opening 16 to facilitate wiring.

[0038] The first metal sheet 23, serving as the radiator 1, can be an antenna of various structural forms, such as a monopole antenna, an IFA antenna, or a PIFA antenna. For example, a portion of the edge of the first metal sheet 23 is grounded, distinct from the edge of the first metal sheet 23 corresponding to the radiating opening 22, thereby improving isolation. The grounded edge can be connected to the ground using a flexible conductive material or a rigid conductive material.

[0039] In the aforementioned embodiments, the first metal sheet 23 is used as the radiator 1. In other embodiments, the first metal sheet 23 and the second metal sheet 24 may also be metal layers of other parts, or metal sheets designed to construct the metal component 2. For example, one of the first metal sheet 23 and the second metal sheet 24 may be the first metal layer on the back of a display screen, and the other may be the second metal layer on the surface of a circuit board. This allows the first and second metal layers to be reused, which helps optimize the internal structure of the electronic device.

[0040] Based on the technical solution of the present disclosure, an electronic device is also provided, such as Figure 6As shown, the electronic device may include an antenna structure as described in any of the above embodiments. For example, the electronic device may also include a display screen 101 and a metal battery cover 102, wherein the display screen 101 is connected to the metal battery cover 102, and the antenna structure is located between the metal battery cover 102 and the display screen 101. The radiator 1 may be a part of the metal part 2, and the ground connection between the radiator 1 and the metal battery cover 102 may be achieved by a conductive material or may be a direct connection between the two. The display screen 101 may include a first metal layer arranged on the non-display side, the first metal layer and the radiator 1 are stacked and spaced apart, and the first metal layer forms a part of the metal part. In other words, the first metal layer on the back of the display screen 101 and the radiator 1 can both be used as part of the metal part 2 to form a cavity, so that the cavity antenna can cover at least a portion of the target frequency band of the electronic device through the cooperation of the radiator, which is conducive to the formation of an all-metal seamless metal battery cover 102 and improves the aesthetics of the electronic device.

[0041] Among them, the display screen 101 includes a display area and a non-display area surrounding the display area. The radiation opening 22 can be directed towards the lower area of ​​the non-display area, which is located between the display screen 101 and the metal battery cover 102. In this way, signal radiation can be achieved through the non-display area, which is conducive to the formation of an all-metal seamless metal battery cover 102 and improves the aesthetics of the electronic device.

[0042] 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.

[0043] 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 antenna structure, characterized in that: include: a radiator, the radiator including an upper frame point; a feeding end, the feeding end being electrically connected to the upper frame point; The metal piece includes a cavity and a radiation opening communicating with the inside and outside of the cavity. The radiator forms at least a part of the metal piece or is suspended in the cavity.

2. The antenna structure according to claim 1, wherein: The metal part includes a first metal sheet, a second metal sheet and a conductive side wall. The first metal sheet and the second metal sheet are stacked and spaced apart. The conductive side wall is connected between the first metal sheet and the second metal sheet to enclose the cavity. The conductive side wall forms the radiation opening.

3. The antenna structure according to claim 2, characterized in that: The first metal sheet is the radiator; the second metal sheet is the first metal layer on the back of the display screen.

4. The antenna structure according to claim 2, characterized in that: The first metal sheet is the radiator; the second metal sheet is the second metal layer on the surface of the circuit board.

5. The antenna structure according to claim 2 or 3, characterized in that: The upper frame point is located inside the cavity; or the upper frame point is located outside the cavity; or the conductive side wall further forms an avoidance opening, and the upper frame point is located in an area of ​​the first metal sheet corresponding to the avoidance opening.

6. The antenna structure according to claim 2 or 3, characterized in that: A portion of the edge of the first metal sheet is a grounding edge, and the grounding edge is different from the edge of the first metal sheet corresponding to the radiation opening.

7. The antenna structure according to claim 2, characterized in that: One of the first metal sheet and the second metal sheet is the first metal layer on the back of the display screen, and the other is the second metal layer on the surface of the circuit board.

8. An electronic device, characterized in that: The invention comprises the antenna structure according to any one of claims 1 to 7.

9. The electronic device according to claim 8, wherein: It also includes a display screen and a metal battery cover, wherein the display screen is connected to the metal battery cover, and the antenna structure is located between the metal battery cover and the display screen; The radiator is part of the metal part, and the radiator is grounded to the metal battery cover. The display screen includes a first metal layer arranged on the non-display side, the first metal layer is stacked and spaced apart from the radiator, and the first metal layer is part of the metal part.

10. The electronic device according to claim 9, characterized in that The display screen includes a display area and a non-display area surrounding the display area; The radiation opening faces a lower area of ​​the non-display area.

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