Antenna and electronic equipment

Abstract

The invention provides an antenna and electronic equipment, the antenna comprises a dielectric substrate, a first conductive plate arranged on the first surface of the dielectric substrate and a second conductive plate arranged on the second surface of the dielectric substrate, and the first surface is opposite to the second surface; the plurality of metal pieces are sequentially and adjacently arranged in the dielectric substrate, and the distance between two adjacent metal pieces in the plurality of metal pieces is greater than a preset distance, so that the projection of the integral shape formed by the plurality of metal pieces on the dielectric substrate is provided with an opening; wherein a varying electric field is generated when varying electric signals are input to the first conductive plate and the second conductive plate.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and more specifically to an antenna and an electronic device. Background Art

[0002] At present, in order to meet users' demand for more functions to be integrated into electronic devices, electronic devices need to integrate more electronic components in a limited space, resulting in a smaller and smaller installation space for antennas. In addition, in order to pursue a more "high-end" metal texture and a slimmer body, electronic devices will use pure metal shells. The design of full metal shells will further compress the installation space of antennas. The smaller installation space results in a smaller distance between the antenna and the metal parts of the electronic device, affecting the communication performance of the antenna. Summary of the invention

[0003] A first aspect of an embodiment of the present disclosure provides an antenna, comprising: a dielectric substrate, a first conductive plate arranged on a first surface of the dielectric substrate, and a second conductive plate arranged on a second surface of the dielectric substrate, the first surface being opposite to the second surface; a plurality of metal parts, arranged adjacent to each other in sequence in the dielectric substrate, wherein a distance between two adjacent metal parts in the plurality of metal parts is greater than a preset distance, so that a projection of an overall shape formed by the plurality of metal parts on the dielectric substrate presents an opening; wherein, when a changing electrical signal is input to the first conductive plate and the second conductive plate, a changing electric field is generated.

[0004] According to an embodiment of the present disclosure, a plurality of metal pieces are arranged in a line shape along the edge of the dielectric substrate.

[0005] According to an embodiment of the present disclosure, a plurality of metal pieces are arranged in a line shape, and among the plurality of metal pieces, a line formed by connecting a plurality of metal pieces opposite to a side where the opening is located is in a stepped shape.

[0006] According to an embodiment of the present disclosure, the lines formed by connecting a plurality of metal pieces opposite to the side where the opening is located are arranged in a plurality of steps, and are used to radiate electromagnetic waves of a plurality of different frequencies.

[0007] According to an embodiment of the present disclosure, a plurality of metal pieces are arranged in a line shape, and the line formed by connecting the plurality of metal pieces includes at least one of a straight line and a curve.

[0008] According to an embodiment of the present disclosure, a plurality of via holes penetrating the first conductive plate, the dielectric substrate and the second conductive plate are formed along a direction perpendicular to the first surface, and metal is formed on inner surfaces of the plurality of via holes to constitute a plurality of metal parts.

[0009] According to an embodiment of the present disclosure, at least one groove is further provided on the first conductive plate or the second conductive plate, and the groove is used to adjust the frequency of the radiated electromagnetic waves.

[0010] According to an embodiment of the present disclosure, the dielectric substrate includes a printed circuit board, the first conductive plate includes a metal plate, and the second conductive plate includes a metal plate.

[0011] The second aspect of the disclosed embodiment provides an electronic device, comprising: a metal back cover, a metal back plate of a screen, and an antenna; the antenna is arranged between the metal back cover and the metal back plate of the screen; the antenna comprises: a dielectric substrate, a first conductive plate arranged on a first surface of the dielectric substrate, and a second conductive plate arranged on a second surface of the dielectric substrate, the first surface being opposite to the second surface; a plurality of metal parts, arranged adjacent to each other in sequence in the dielectric substrate, wherein a distance between two adjacent metal parts in the plurality of metal parts is greater than a preset distance, so that a projection of an overall shape formed by the plurality of metal parts on the dielectric substrate presents an opening, and a direction of the opening is parallel to the first surface or the second surface; wherein, when a changing electrical signal is input to the first conductive plate and the second conductive plate, a changing electric field is generated, and the changing electric field generates a changing magnetic field, which radiates from the opening.

[0012] According to an embodiment of the present disclosure, the antenna is fixed between the metal back cover and the metal back plate of the screen by a fixing member so that the antenna has no contact with the metal back cover and the metal back plate; or, the antenna is arranged between the metal back cover and the metal back plate of the screen by an insulating component so that the antenna has no contact with the metal back cover and the metal back plate.

[0013] The antenna and electronic device provided in this embodiment can generate electromagnetic waves when voltage is applied by arranging two parallel conductive plates above and below the dielectric substrate, and by virtue of the influence of metal parts on the radiation direction of electromagnetic waves, the electromagnetic waves can be radiated parallel to the metal shell, thereby reducing the influence of the metal shell environment on the antenna performance. In addition, this radiation mode can reuse the screen frame, the sound cavity slot, the air outlet window and other positions for radiation, thereby reducing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0015] Figure 1 The exploded structure diagram of the antenna according to the embodiment of the present disclosure is schematically shown;

[0016] Figure 2 A schematic diagram schematically illustrates the principle of electromagnetic mirroring according to an embodiment of the present disclosure;

[0017] Figure 3 Schematically showing projection patterns of multiple metal pieces on a dielectric substrate according to the first embodiment of the present disclosure;

[0018] Figure 4Schematically showing projection patterns of multiple metal pieces on a dielectric substrate according to a second embodiment of the present disclosure;

[0019] Figure 5 Schematically shows a projection pattern of multiple metal pieces on a dielectric substrate according to a third embodiment of the present disclosure;

[0020] Figure 6 Schematically shows a projection pattern of multiple metal pieces on a dielectric substrate according to a fourth embodiment of the present disclosure;

[0021] Figure 7 Schematically shows a projection pattern of multiple metal pieces on a dielectric substrate according to a fifth embodiment of the present disclosure;

[0022] Figure 8 The structure diagram of the appearance of the antenna according to the embodiment of the present disclosure is schematically shown;

[0023] Fig. 9 The structure diagram of an electronic device according to an embodiment of the present disclosure is schematically shown;

[0024] Fig.10 Schematically showing the comparison data of the radiation efficiency parameters of the antenna of the embodiment of the present disclosure and the radiation efficiency parameters of the traditional antenna in the same metal environment;

[0025] Fig.11 The radiation efficiency result diagram according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0026] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0027] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0028] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0029] Some block diagrams and / or flow charts are shown in the accompanying drawings. It should be understood that some blocks or combinations thereof in the block diagrams and / or flow charts may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that these instructions, when executed by the processor, may create a device for implementing the functions / operations described in these block diagrams and / or flow charts.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are contradictory.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Currently, electronic devices can use slots on the metal back panel and use the shape of the metal frame to design the antenna, or add plastic parts after slotting at a preset position of the metal shell to make room for the antenna. These methods require complex processes, increase manufacturing costs, and the slotted part is inconsistent with the color of the original metal shell, which destroys the integrity of the appearance of the electronic device.

[0033] In view of this, the present disclosure provides an antenna and an electronic device for at least partially solving the above problems.

[0034] The following will be passed Figure 1 to Figure 8 The antenna of the disclosed embodiment is described in detail.

[0035] Figure 1 The exploded structure diagram of the antenna according to the embodiment of the present disclosure is schematically shown.

[0036] like Figure 1 As shown, in some embodiments of the present disclosure, the antenna 1 may include: a dielectric substrate 11 , a first conductive plate 12 , a second conductive plate 13 and a plurality of metal parts 14 .

[0037] The first conductive plate 12 may be disposed on a first surface (eg, Figure 1 The second conductive plate 13 may be disposed on the second surface of the dielectric substrate 11 (eg Figure 1 A plurality of metal parts 14 may be arranged adjacent to each other in sequence in the dielectric substrate 11.

[0038] Among the multiple metal parts 14, the distance between two adjacent metal parts 14 is greater than the preset distance, so that the projection of the overall shape formed by the multiple metal parts 14 on the dielectric substrate presents an opening 141. For example, in the dielectric substrate 11, the two outermost metal parts can be separated by a certain distance, and the other metal parts 14 can be closely arranged. It should be noted that the opening is not relative to a single metal part 14, that is, the opening is not formed on a single metal part 14, but the multiple metal parts 14 are regarded as a whole, and the metal part 14 is not set at the preset position in the dielectric substrate 11, so that the opening is formed as a whole.

[0039] In the embodiment of the present disclosure, when a changing electric signal is input to the first conductive plate 12 and the second conductive plate 13 , a changing electric field is generated.

[0040] Figure 2 A schematic diagram schematically illustrates the electromagnetic mirroring principle according to an embodiment of the present disclosure.

[0041] like Figure 2 As shown, the electromagnetic mirror principle refers to the electromagnetic field generated by any charge or current in the space above the infinite, ideal conductive plate, which is electrically equivalent to the field generated by the original charge or current superimposed on the field generated by its mirror image. Based on the electromagnetic mirror principle, inputting alternating current (such as a sinusoidal voltage) to the first conductive plate 12 and the second conductive plate 13 will generate a changing electric field between the first conductive plate 12 and the second conductive plate 13. If the speed of the electric field change is fast enough, the changing electric field can affect the surrounding space and stimulate an equivalent magnetic field perpendicular to the electric field for radiation. Since a plurality of metal parts 14 are provided in the dielectric substrate 11 of the antenna 1, the plurality of metal parts 14 can affect the radiation direction of the equivalent magnetic field, so that the magnetic field can be radiated from the opening in a direction parallel to the first conductive plate or the second conductive plate.

[0042] According to the embodiments of the present disclosure, by arranging two parallel conductive plates above and below the dielectric substrate, electromagnetic waves can be generated when voltage is applied, and by virtue of the influence of metal parts on the radiation direction of the electromagnetic waves, the electromagnetic waves can be radiated parallel to the openings reserved by the metal shell, thereby reducing the influence of the metal shell environment on the antenna performance.

[0043] Figure 3 The diagram schematically shows projection patterns of multiple metal pieces on a dielectric substrate according to the first embodiment of the present disclosure.

[0044] like Figure 3 As shown, based on the above embodiment, as a possible implementation mode, a plurality of metal parts 14 can be arranged in a line shape along the edge of the dielectric substrate 11 .

[0045] For example, the shape of the dielectric substrate 11 can be a distance, and the multiple metal parts 14 can be closely arranged along three adjacent sides of the rectangle, and no metal part 14 is set on the fourth side, so that the fourth side can be used as a radiation side (opening 141) to radiate electromagnetic waves. It should be understood that the shape of the dielectric substrate 11 is used as an example to assist in explaining the arrangement of the multiple metal parts 14, and is not used to limit the shape of the antenna disclosed in the present invention. The specific shape of the antenna can be designed according to the actual application scenario of the antenna, and the present invention does not limit it.

[0046] According to the embodiment of the present disclosure, when a changing electrical signal is input to the first conductive plate 12 and the second conductive plate 13, a magnetic field can be formed in the area between the first conductive plate 12 and the second conductive plate 13. A plurality of metal members 14 can be disposed on the edge of the dielectric substrate 11 to change the direction of the magnetic field in a larger area between the first conductive plate 12 and the second conductive plate 13 so that the magnetic field is radiated from the opening 141, thereby improving the radiation performance of the antenna.

[0047] It should be noted that for the antenna of this embodiment that is not fully detailed, please refer to the antenna described in the aforementioned embodiment part, and will not be repeated here.

[0048] Figure 4 The diagram schematically shows projection patterns of multiple metal pieces on a dielectric substrate according to the second embodiment of the present disclosure.

[0049] like Figure 4 As shown, based on the above embodiment, as a possible implementation, multiple metal parts 14 can be arranged in a line shape, and the line formed by connecting multiple metal parts 14 opposite to the side where the opening 141 is located is stepped.

[0050] For example, the shape of the dielectric substrate 11 can be a distance, and the multiple metal parts 14 can be closely arranged along three adjacent sides of the rectangle, and no metal part 14 is set on the fourth side, so that the fourth side can radiate electromagnetic waves as a radiation side. The multiple metal parts on the side opposite to the fourth side are not all arranged along the edge, and can be arranged in a stepped linear shape.

[0051] It should be noted that for the antenna of this embodiment that is not fully detailed, please refer to the antenna described in the aforementioned embodiment part, and will not be repeated here.

[0052] According to the embodiments of the present disclosure, on the side opposite to the radiation side, the line formed by the multiple metal parts is wider from the radiation side, corresponding to the radiation of low-frequency electromagnetic waves, and the line formed by the multiple metal parts is narrower from the radiation side, corresponding to the radiation of high-frequency electromagnetic waves. Through the layout of the metal parts, the antenna can radiate high-frequency electromagnetic waves and low-frequency electromagnetic waves at the same time, expanding the scope of application of the antenna.

[0053] Figure 5 The diagram schematically shows projection patterns of multiple metal pieces on a dielectric substrate according to the third embodiment of the present disclosure.

[0054] like Figure 5 As shown, based on the above embodiment, as a possible implementation method, the lines formed by connecting multiple metal parts opposite to the side where the opening is located are arranged in multiple steps to radiate electromagnetic waves of multiple different frequencies.

[0055] For example, the shape of the dielectric substrate 11 can be a distance, and the multiple metal parts 14 can be closely arranged along the three adjacent sides of the rectangle, and the metal part 14 is not set on the fourth side, so that the fourth side can radiate electromagnetic waves as a radiation side. The multiple metal parts on the side opposite to the fourth side are not all arranged along the edge, and can be arranged in a plurality of stepped linear shapes, and the number of steps can be 2, 3, 4, etc., which can be specifically designed according to the actual application scenario, and the present disclosure does not limit it.

[0056] According to an embodiment of the present disclosure, on the edge opposite to the radiation edge, multiple metal parts 14 are distributed in a stepped manner, and the multiple metal parts 14 arranged corresponding to each step can radiate electromagnetic waves of one frequency, and the multiple metal parts 14 arranged corresponding to multiple steps can radiate electromagnetic waves of multiple frequencies, so that the radiation frequency covered by the antenna is wider.

[0057] It should be noted that for the antenna of this embodiment that is not fully detailed, please refer to the antenna described in the aforementioned embodiment part, and will not be repeated here.

[0058] Based on the above embodiments, as some possible implementations, a plurality of metal pieces are arranged in a line shape, and the line formed by connecting the plurality of metal pieces includes at least one of a straight line and a curve.

[0059] For example, Figure 3-Figure 5 Taking the arrangement of the plurality of metal members 14 as an example, the lines formed by connecting the plurality of metal members 14 include straight lines.

[0060] Figure 6 The diagram schematically shows projection patterns of multiple metal pieces on a dielectric substrate according to the fourth embodiment of the present disclosure.

[0061] like Figure 6 As shown, for another example, the lines formed by connecting a plurality of metal parts 14 include straight lines and curves.

[0062] Figure 7 The diagram schematically shows projection patterns of multiple metal pieces on a dielectric substrate according to the fifth embodiment of the present disclosure.

[0063] like Figure 7 As shown, for example, the line formed by connecting the plurality of metal members 14 includes a curve.

[0064] It should be noted that for the antenna of this embodiment that is not fully detailed, please refer to the antenna described in the aforementioned embodiment part, and will not be repeated here.

[0065] According to the embodiments of the present disclosure, the radiation frequency of the antenna can be flexibly adjusted by designing the shape of the line in which the multiple metal pieces are arranged.

[0066] Based on the above embodiment, a plurality of via holes penetrating the first conductive plate, the dielectric substrate and the second conductive plate are formed along a direction perpendicular to the first surface, and metal is formed on the inner surfaces of the plurality of via holes to form a plurality of metal parts.

[0067] According to the embodiments of the present disclosure, since vias may need to be made in the first conductive plate 12, the dielectric substrate 11, and the second conductive plate 13 for connecting the printed wires between the layers, based on this, a metal layer is directly plated in the via to form a metal part 14 to change the radiation direction of the electromagnetic wave. There is no need to set metal parts in additional areas, which can simplify the manufacturing process.

[0068] It should be noted that for the antenna of this embodiment that is not fully detailed, please refer to the antenna described in the aforementioned embodiment part, and will not be repeated here.

[0069] Figure 8 The figure schematically shows the appearance structure of an antenna according to an embodiment of the present disclosure.

[0070] like Figure 8 As shown, based on the above embodiment, at least one groove is further provided on the first conductive plate or the second conductive plate, and the groove is used to adjust the frequency of the radiated electromagnetic wave.

[0071] For example, a groove may be provided on the first conductive plate at the side where the opening 141 is located, and after the antenna is processed, the antenna may be debugged based on the groove 121 .

[0072] According to an embodiment of the present disclosure, since at least one groove is provided on the first conductive plate or the second conductive plate, even after the antenna is manufactured, the frequency of the radiated electromagnetic waves can be adjusted based on the groove to meet the application requirements of different electronic devices.

[0073] On the basis of the above embodiment, the dielectric substrate includes a printed circuit board (PCB), the first conductive plate includes a metal plate, and the second conductive plate includes a metal plate.

[0074] In the embodiment of the present disclosure, the dielectric substrate 12 of the antenna is a PCB board, and the antenna can be a PCB antenna. The material of the metal plate can be copper, for example, and the present disclosure does not limit it.

[0075] The embodiment of the present disclosure also provides an electronic device, which will be described below through Fig. 9 The electronic device of the disclosed embodiment is described in detail.

[0076] Fig. 9 The structure diagram of an electronic device according to an embodiment of the present disclosure is schematically shown.

[0077] like Fig. 9 As shown, the electronic device may include: an antenna 1, a metal back cover 2 and a metal back plate 3 of a screen. The antenna 1 is arranged between the metal back cover 2 and the metal back plate 3 of the screen.

[0078] Antenna 1 includes:

[0079] A dielectric substrate 11, a first conductive plate 12 arranged on a first surface of the dielectric substrate, and a second conductive plate 13 arranged on a second surface of the dielectric substrate, wherein the first surface is opposite to the second surface.

[0080] A plurality of metal members 14 are arranged in sequence and adjacent to each other in the dielectric substrate 11. Among the plurality of metal members 14, the distance between two adjacent metal members 14 is greater than a preset distance, so that the projection of the overall shape formed by the plurality of metal members 14 on the dielectric substrate 11 presents an opening 141, and the direction of the opening 141 is parallel to the first surface or the second surface. When a changing electric signal is input to the first conductive plate and the second conductive plate, a changing electric field is generated, and the changing electric field generates a changing magnetic field, which is radiated from the opening 141.

[0081] In the embodiment of the present disclosure, the direction F of the opening 141 points to the screen frame of the electronic device, the sound cavity slot (for example Fig. 9 A indicates the area in the middle), opening the window at the air outlet

[0082] It should be noted that Fig. 9 The electronic devices may include, for example, mobile phones, laptops, tablet computers, wearable devices, etc.

[0083] According to the embodiments of the present disclosure, an antenna of this structure is applied to electronic devices. By arranging two parallel conductive plates above and below a dielectric substrate, electromagnetic waves can be generated when voltage is applied. By means of the influence of metal parts on the radiation direction of the electromagnetic waves, the electromagnetic waves can be radiated parallel to the metal casing. This radiation method can reuse the screen frame, sound cavity slots, air outlet windows and other positions for radiation, thereby reducing processing costs.

[0084] Based on the above embodiments, in some embodiments, the antenna 1 is fixed between the metal back cover 2 and the metal back plate 3 of the screen by a fixing member so that the antenna 1 has no contact with the metal back cover 2 and the metal back plate 3 of the screen.

[0085] This arrangement mainly considers that when the antenna 1 contacts the metal back cover 2 or the metal back plate 3 of the screen, the radiation performance of the antenna 1 will be greatly reduced. Therefore, the antenna 1 is fixed between the metal back cover 2 and the metal back plate 3 of the screen by a fixing member to avoid contact with the metal back cover 2 and the metal back plate 3 of the screen, thereby avoiding reducing the radiation performance of the antenna 1. In another embodiment, the antenna can be fixed between the keyboard and the metal bottom cover by a fixing member.

[0086] It should be noted that the fixing member can be determined according to actual conditions and is not limited here. As an example, the fixing member can be a clamp. Fixing the antenna 1 between the metal back cover 2 and the metal back plate 3 of the screen by the fixing member can be fixing the antenna 1 between the metal back cover 2 and the metal back plate 3 of the screen by the clamp to avoid contact with the metal back cover 2 and the metal back plate 3 of the screen, thereby avoiding greatly reducing the antenna radiation performance.

[0087] In other embodiments, the antenna 1 is disposed between the metal back cover 2 and the metal back plate 3 of the screen through an insulating component so that the antenna 1 has no contact with the metal back cover 2 and the metal back plate 3 of the screen.

[0088] This setting method mainly takes into account that when the antenna 1 contacts the metal back cover 2 or the metal back plate 3 of the screen, the radiation performance of the antenna 1 will be greatly reduced. Therefore, the antenna 1 is fixed between the metal back cover 2 and the metal back plate 3 of the screen through an insulating component to avoid contact with the metal back cover 2 and the metal back plate 3 of the screen, thereby avoiding reducing the radiation performance of the antenna 1.

[0089] It should be noted that the insulating component can be determined according to actual conditions and is not limited here. As an example, the insulating component can be a gasket made of metal and non-metallic materials, such as a wound gasket or a metal-coated gasket. Fixing the antenna 1 between the metal back cover 2 and the metal back plate 3 of the screen by the insulating component can be fixing the antenna 1 between the metal back cover 2 and the metal back plate 3 of the screen by a wound gasket or a metal-coated gasket to avoid contact with the metal back cover 2 and the metal back plate 3 of the screen, thereby avoiding greatly reducing the antenna radiation performance.

[0090] It should be noted that the description of the electronic device of the embodiment of the present application is similar to the description of the above-mentioned antenna embodiment, and has similar beneficial effects as the structural embodiment, so it is not repeated here. For technical details not disclosed in the embodiment of the electronic device, please refer to the description of the antenna embodiment of the present application for understanding.

[0091] Fig.10 The comparative data of the radiation efficiency parameters of the antenna according to the embodiment of the present disclosure and the radiation efficiency parameters of the traditional antenna in the same metal environment are schematically shown. Fig.11 The figure schematically shows the radiation efficiency simulation result according to the embodiment of the present disclosure.

[0092] like Fig.10 and Fig.11 As shown, compared with the radiation efficiency of a traditional antenna, the radiation efficiency of the antenna provided by the embodiment of the present disclosure is higher and the radiation frequency is wider.

[0093] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations and / or combinations are not explicitly described in the present disclosure. In particular, the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways without departing from the spirit and teachings of the present disclosure. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0094] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present disclosure is defined by the attached claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. An antenna, comprising: A dielectric substrate, a first conductive plate disposed on a first surface of the dielectric substrate, and a second conductive plate disposed on a second surface of the dielectric substrate, wherein the first surface is opposite to the second surface; A plurality of metal parts are arranged in sequence and adjacent to each other in the dielectric substrate, wherein the distance between two adjacent metal parts in the plurality of metal parts is greater than a preset distance, so that the projection of the overall shape formed by the plurality of metal parts on the dielectric substrate presents an opening; When a changing electric signal is input to the first conductive plate and the second conductive plate, a changing electric field is generated. 2 . The antenna according to claim 1 , wherein the plurality of metal parts are arranged in a line shape along an edge of the dielectric substrate. 3 . The antenna according to claim 1 , wherein the plurality of metal parts are arranged in a line shape, and the line formed by connecting the plurality of metal parts opposite to the side where the opening is located is in a stepped shape.

4. The antenna according to claim 3, wherein the lines formed by connecting a plurality of metal pieces opposite to the side where the opening is located are arranged in a plurality of steps, and are used to radiate electromagnetic waves of a plurality of different frequencies. 5 . The antenna according to claim 1 , wherein the plurality of metal parts are arranged in a line shape, and the line formed by connecting the plurality of metal parts comprises at least one of a straight line and a curve.

6. The antenna according to any one of claims 1 to 5, wherein a plurality of via holes penetrating the first conductive plate, the dielectric substrate and the second conductive plate are formed along a direction perpendicular to the first surface, and metal is formed on inner surfaces of the plurality of via holes to constitute the plurality of metal parts.

7. The antenna according to claim 1, wherein at least one groove is formed on the first conductive plate or the second conductive plate, and the groove is used to adjust the frequency of the radiated electromagnetic wave. 8 . The antenna according to claim 1 , wherein the dielectric substrate comprises a printed circuit board, the first conductive plate comprises a metal plate, and the second conductive plate comprises a metal plate.

9. An electronic device, comprising: Metal back cover, metal back plate of the screen and antenna; The antenna is arranged between the metal back cover and the metal back plate of the screen; The antenna comprises: A dielectric substrate, a first conductive plate disposed on a first surface of the dielectric substrate, and a second conductive plate disposed on a second surface of the dielectric substrate, wherein the first surface is opposite to the second surface; A plurality of metal parts are arranged adjacent to each other in the dielectric substrate, and are arranged adjacent to each other in sequence in the dielectric substrate, wherein a distance between two adjacent metal parts among the plurality of metal parts is greater than a preset distance, so that a projection of an overall shape formed by the plurality of metal parts on the dielectric substrate presents an opening, and a direction of the opening is parallel to the first surface or the second surface; When a changing electric signal is input to the first conductive plate and the second conductive plate, a changing electric field is generated, and the changing electric field generates a changing magnetic field which is radiated from the opening.

10. The electronic device according to claim 9, wherein the antenna is fixed between the metal back cover and the metal back plate of the screen by a fixing member so that the antenna has no contact with the metal back cover and the metal back plate; Alternatively, the antenna is disposed between the metal back cover and the metal back plate of the screen through an insulating component so that the antenna has no contact with the metal back cover and the metal back plate.

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