Antenna Structure and Electronic Device with the Antenna Structure

Abstract

The present application provides an antenna structure for an electronic device, which includes a radiation part, a first feeding source, a second feeding source, a third feeding source, a first grounding part and a second grounding part. The radiation part is formed by a part of the metal frame of the electronic device. The first feeding source, the second feeding source and the third feeding source are arranged at intervals and are all electrically connected to the radiation part to feed current signals to the radiation part and enable the radiation part to form multiple antennas. The first grounding part and the second grounding part are arranged at intervals. One ends of the first grounding part and the second grounding part are both electrically connected to the radiation part, and the other ends are grounded to improve the isolation degree between the multiple antennas. The antenna structure has good performance, more excellent isolation effect, can improve the frequency bandwidth and has the best antenna efficiency. The present application also provides an electronic device having the antenna structure.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and particularly to an antenna structure and an electronic device. Background Art

[0002] With the progress of wireless communication technologies, electronic devices such as mobile phones and personal digital assistants are continuously developing towards the trends of diversified functions, thinness and lightness, and faster and more efficient data transmission. However, the space available for accommodating antennas is getting smaller and smaller, and with the continuous development of wireless communication technologies, the bandwidth requirements of antennas are constantly increasing. Therefore, how to design an antenna with a relatively wide bandwidth in a limited space is an important issue faced in antenna design. Summary of the Invention

[0003] This application provides an antenna structure and an electronic device having the antenna structure, which can improve the bandwidth and have the best antenna efficiency at the same time.

[0004] An antenna structure of an electronic device includes a radiation part, a first feeding source, a second feeding source, a third feeding source, a first grounding part and a second grounding part. The radiation part is constituted by a part of the metal frame of the electronic device. The first feeding source, the second feeding source and the third feeding source are arranged at intervals and are all electrically connected to the radiation part to feed current signals to the radiation part and make the radiation part form multiple antennas. The first grounding part and the second grounding part are arranged at intervals. One ends of the first grounding part and the second grounding part are both electrically connected to the radiation part, and the other ends are grounded to improve the isolation degree between the multiple antennas.

[0005] An electronic device includes the above-mentioned antenna structure.

[0006] The above-mentioned antenna structure and the electronic device having the antenna structure constitute a three-feeding common antenna structure. By setting the first grounding part and the second grounding part, the antenna structure has good performance, and the isolation effect of the antenna structure is more excellent, which can improve the bandwidth and have the best antenna efficiency at the same time. Description of the Drawings

[0007] Figure 1 Schematic diagram of the antenna structure provided by the embodiment of this application applied to an electronic device;

[0008] Figure 2 Schematic diagram of the antenna structure provided by the embodiment of this application applied to another electronic device;

[0009] Figure 3 Schematic diagram of the antenna structure provided by the embodiment of this application applied to another electronic device;

[0010] Figure 4Schematic diagram of the antenna structure provided by the embodiment of the present application;

[0011] Figure 5 Schematic diagram of the antenna structure provided by the embodiment of the present application from another angle;

[0012] Figure 6 Cross-sectional schematic diagram of the antenna structure provided by the embodiment of the present application;

[0013] Figure 7 Schematic diagram of the current flow direction of the antenna structure provided by the embodiment of the present application;

[0014] Figure 8 S-parameter (scattering parameter) curve graph of the antenna structure provided by the embodiment of the present application;

[0015] Figure 9 Total efficiency curve graph of the antenna structure provided by the embodiment of the present application;

[0016] Figure 10 Schematic diagram of the antenna structure provided by the embodiment of the present application with a first filtering unit;

[0017] Figure 11 Schematic diagram of the antenna structure provided by the embodiment of the present application with a second filtering unit.

[0018] Description of main element symbols

[0019] Antenna structure 100 Housing 11 Frame 110 Metal part 110a Insulating part 110b Backplane 111 Ground plane 112 Middle frame 113 Accommodating space 114 Groove 118 First gap 120 Second gap 121 Radiating part F1 First feeding source 12 Second feeding source 13 Third feeding source 14 First grounding part 15 Second grounding part 16 First filtering unit 17 Second filtering unit 18 Grounding part 19，20 Electronic device 200 Region 200a Gap 200b Display unit 202

[0020] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0022] It should be noted that "at least one" in the embodiments of the present application refers to one or more, and multiple refers to two or more. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0023] It should be understood that, in this application, unless otherwise specified, " / " means or. For example, A / B can mean A or B. "A and / or B" in this application is only a description of the association relationship of the associated objects, indicating that there can be three relationships: only A exists, only B exists, and A and B exist.

[0024] It should be noted that, in the embodiments of the present application, words such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. Features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way.

[0025] It should be noted that, in the embodiments of the present application, the term "height" refers to the projection length in the direction perpendicular to the reference stratum. The terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application.

[0026] Please also read Figures 1 to 3 It can be understood that the embodiment of the present application provides an antenna structure 100, which can be applied to an electronic device 200 to transmit and receive radio waves to transmit and exchange wireless signals. The electronic device 200 can be a handheld communication device (such as a mobile phone), a folding machine, a smart wearable device (such as a watch, a headset, etc.), a tablet computer, a personal digital assistant (PDA), etc., and is not specifically limited here.

[0027] For example, Figure 1 The antenna structure 100 can be applied to an electronic device 200, and the electronic device 200 is a mobile phone. Figure 2 The antenna structure 100 can be applied to an electronic device 200, and the electronic device 200 is a watch. Figure 3 The antenna structure 100 can be applied to an electronic device 200, which is a tablet computer. Figures 1 to 3, the antenna structure 100 is formed by the metal frame of the electronic device 200, and the antenna structure 100 can be disposed in the area 200a shown in the figure. The area 200a is the position or area where the electronic device 200 is provided with a gap 200b.

[0028] It can be understood that the electronic device 200 can adopt one or more of the following communication technologies: Bluetooth (BT) communication technology, Global Positioning System (GPS) communication technology, Wireless Fidelity (Wi-Fi) communication technology, Global System for Mobile Communications (GSM) communication technology, Wideband Code Division Multiple Access (WCDMA) communication technology, Long Term Evolution (LTE) communication technology, 5G communication technology, SUB-6G communication technology, and other future communication technologies, etc.

[0029] In the embodiment of the present application, the electronic device 200 is taken as a mobile phone as an example for illustration. Please refer to Figures 4 to 6 , wherein, Figure 4 is a side schematic view of the electronic device 200. Figure 5 is a schematic view of the electronic device 200 at another angle. Figure 6 is a cross-sectional schematic view of the electronic device 200. The electronic device 200 includes a housing 11 (refer to Figure 6 ) and a display unit 202. The housing 11 at least includes a frame 110, a back plate 111, a ground plane 112, and a middle frame 113 (refer to Figure 5 ).

[0030] The frame 110 is made of metal or other conductive materials. The back plate 111 can be made of metal or other conductive materials. The frame 110 is disposed at the edge of the back plate 111 and together with the back plate 111 forms an accommodation space 114 (refer to Figure 5 and Figure 6 ). An opening (not labeled in the figure) is provided on one side of the frame 110 opposite to the back plate 111 for accommodating the display unit 202. The display unit 202 has a display plane, and this display plane is exposed at the opening. It can be understood that the display unit 202 can be combined with a touch sensor to form a touch screen. The touch sensor can also be called a touch panel or a touch-sensitive panel.

[0031] It can be understood that in the embodiments of the present application, the display unit 202 has a high screen-to-body ratio. That is, the area of the display plane of the display unit 202 is greater than 70% of the front area of the electronic device, and even a full-screen front can be achieved. Specifically, in the embodiments of the present application, the full screen means that except for the necessary slots opened on the antenna structure 100, the left side, right side, and lower side of the display unit 202 can be seamlessly connected to the frame 110.

[0032] Please refer to Figure 5 and Figure 6 , the ground plane 112 can be made of metal or other conductive materials. The ground plane 112 can be disposed in the accommodation space 114 jointly formed by the frame 110 and the back plate 111, and is connected to the back plate 111.

[0033] The middle frame 113 is made of metal or other conductive materials. The shape and size of the middle frame 113 can be slightly smaller than the ground plane 112. The middle frame 113 is stacked on the ground plane 112. In this embodiment, the middle frame 113 is a metal sheet disposed between the display unit 202 and the ground plane 112. The middle frame 113 is used to support the display unit 202, provide electromagnetic shielding, and improve the mechanical strength of the electronic device 200.

[0034] It can be understood that in this embodiment, the frame 110, the back plate 111, the ground plane 112, and the middle frame 113 can form an integrally formed metal frame. The back plate 111, the ground plane 112, and the middle frame 113 are large-area metals, so they can jointly form the system ground plane (not labeled in the figure) of the antenna structure 100.

[0035] It can be understood that in other embodiments, the electronic device 200 may further include one or more of the following components, such as a processor, a circuit board, a memory, a power supply component, an input / output circuit, an audio component (such as a microphone and a speaker, etc.), a multimedia component (such as a front camera and / or a rear camera), a sensor component (such as a proximity sensor, a distance sensor, an ambient light sensor, an acceleration sensor, a gyroscope, a magnetic sensor, a pressure sensor, and / or a temperature sensor, etc.), which will not be elaborated here.

[0036] Please refer to again Figure 5 , the antenna structure 100 at least includes a radiator, a first feeding source 12, a second feeding source 13, a third feeding source 14, a first grounding portion 15, and a second grounding portion 16.

[0037] The radiator is made of metal material. In this embodiment, the radiator is the frame 110 of the electronic device 200. The radiator is composed of a portion of the frame 110. The frame 110 is also provided with a slot 118 (see FIG. 1 ). Figure 4 ). The slot 118 is disposed on one side of the frame 110 close to the back plate 111 and extends in a direction close to the display unit 202. In the embodiment of the present application, the slot 118 is filled with insulating material, such as plastic, rubber, glass, wood, ceramic, etc., but not limited thereto. In this way, the frame 110 is divided into a metal portion 110a and an insulating portion 110b by providing the slot 118.

[0038] It can be understood that at least one slit is also provided on the frame 110. In the embodiment of the present application, at least two slits are provided on the frame 110, such as a first slit 120 and a second slit 121. The first slit 120 and the second slit 121 are spaced apart on the metal portion 110a of the frame 110, and both are interconnected with the slot 118 and separate the metal portion 110a. In this way, the first slit 120 and the second slit 121 together divide at least one radiation portion, such as a radiation portion F1, from the metal portion 110a of the frame 110. In the embodiment of the present application, the frame 110 (i.e., the metal portion 110a) between the first slit 120 and the second slit 121 forms the radiation portion F1.

[0039] It can be understood that in the embodiment of the present application, the first gap 120 and the second gap 121 are also filled with insulating materials, such as plastic, rubber, glass, wood, ceramic, etc., but not limited thereto.

[0040] It can be understood that in the embodiment of the present application, the width of the first gap 120 and the second gap 121 can be set to 1mm-2mm.

[0041] It can be understood that in the embodiment of the present application, the first feeding source 12 is disposed inside the radiating portion F1. One end of the first feeding source 12 can be electrically connected to a side of the radiating portion F1 close to the first gap 120 by means of a spring, a microstrip line, a strip line, a coaxial cable, etc., so as to feed a current signal to the radiating portion F1.

[0042] The second feeding source 13 is disposed inside the radiation portion F1 and spaced apart from the first feeding source 12. One end of the second feeding source 13 can be electrically connected to a side of the radiation portion F1 close to the second gap 121 by means of a spring, a microstrip line, a strip line, a coaxial cable, etc., so as to feed a current signal to the radiation portion F1.

[0043] The third feeding source 14 is disposed inside the radiation portion F1, and is spaced apart from the first feeding source 12 and the second feeding source 13. The third feeding source 14 is disposed between the first feeding source 12 and the second feeding source 13. In the embodiment of the present application, the first feeding source 12 and the second feeding source 13 are respectively disposed adjacent to the ends of the radiation portion F1. The third feeding source 14 is disposed between the first feeding source 12 and the second feeding source 13, and is closer to the first feeding source 12 than the second feeding source 13. One end of the third feeding source 14 can be electrically connected to the radiation portion F1 by means of a shrapnel, a microstrip line, a strip line, a coaxial cable, etc., to feed a current signal into the radiation portion F1.

[0044] That is to say, in this embodiment, the first feeding source 12, the second feeding source 13 and the third feeding source 14 share the radiation portion F1. The three feeding sources are all electrically connected to the radiation portion F1 and are spaced apart from each other to respectively feed current signals into the radiation portion F1. The first feeding source 12, the second feeding source 13 and the third feeding source 14 are all monopole antenna feeding sources, so that the antenna structure 100 forms a plurality of monopole antennas.

[0045] The first grounding portion 15 is disposed inside the radiation portion F1. The first grounding portion 15 is disposed between the first feeding source 12 and the third feeding source 14. One end of the first grounding portion 15 can be electrically connected to the ground plane 112, that is, grounded, by means of a shrapnel, a microstrip line, a strip line, a coaxial cable, etc., and the other end is electrically connected to the radiation portion F1 to provide grounding for the radiation portion F1.

[0046] The second grounding portion 16 is disposed inside the radiation portion F1. The second grounding portion 16 is disposed between the second feeding source 13 and the third feeding source 14, and the second grounding portion 16 is closer to the second feeding source 13 than the third feeding source 14. One end of the second grounding portion 16 can be electrically connected to the ground plane 112, that is, grounded, by means of a shrapnel, a microstrip line, a strip line, a coaxial cable, etc., and the other end is electrically connected to the radiation portion F1 to provide grounding for the radiation portion F1.

[0047] It can be understood that please refer to Figure 7 together, which is the current path diagram of the antenna structure 100. Wherein, when the current is fed from the first feeding source 12, the current will be fed into the radiation portion F1 through a first matching circuit (not shown in the figure) and flow to the first slit 120 (refer to path P1), thereby exciting a first working mode to generate a radiation signal in the first radiation frequency band.

[0048] When current is fed from the first feeding source 12, the current will be fed into the radiation part F1 via the first matching circuit and flow into the first grounding part 15 (refer to path feeding source P2), thereby exciting a second working mode to generate a radiation signal in the second radiation frequency band.

[0049] When current is fed from the second feeding source 13, the current will be fed into the radiation part F1 via a second matching circuit (not shown in the figure) and flow to the second slot 121 (refer to path P3), thereby exciting a third working mode to generate a radiation signal in the third radiation frequency band.

[0050] When current is fed from the second feeding source 13, the current will be fed into the radiation part F1 via the second matching circuit and flow into the second grounding part 16 (refer to path P4), thereby exciting a fourth working mode to generate a radiation signal in the fourth radiation frequency band.

[0051] When current is fed from the third feeding source 14, the current will be fed into the radiation part F1 via a third matching circuit (not shown in the figure) and flow from the first grounding part 15 to the second grounding part 16 (refer to path P5), thereby exciting a fifth working mode to generate a radiation signal in the fifth radiation frequency band.

[0052] In this embodiment, both the first working mode and the third working mode are WIFI 2.4 GHz modes. The frequencies of both the first radiation frequency band and the third radiation frequency band are 2400 - 2484 MHz. Both the second working mode and the fourth working mode are WIFI 5 GHz modes. The frequencies of both the second radiation frequency band and the fourth radiation frequency band are 5150 - 5850 MHz. The fifth working mode includes a Global Positioning System (GPS) mode. The frequency of the fifth radiation frequency band is 1575 MHz. That is, paths P1 and P3 are the radiation current paths of the WIFI 2.4 GHz mode. Paths P2 and P4 are the radiation current paths of the WIFI 5 GHz mode. Path P5 is the radiation current path of the GPS mode.

[0053] Figure 8 is the S-parameter (scattering parameter) curve graph of the antenna structure 100. Figure 9 is the total efficiency curve graph of the antenna structure 100.

[0054] Obviously, in the embodiments of the present application, the radiation part F1 constitutes multiple feed-ins, such as a three-feed-in common antenna structure. Among them, three feed-in sources, such as the first feed-in source 12, the second feed-in source 13, and the third feed-in source 14, are arranged at intervals on one side of the radiation part F1, which can enable the radiation part F1 to form multiple monopole antennas (such as a GPS antenna, a WIFI 2.4G antenna, and a WIFI 5G antenna), and then generate corresponding GPS frequency bands, WIFI 2.4G frequency bands, and WIFI 5G frequency bands. Specifically, in this embodiment, the radiation part F1 can constitute a dual WIFI 2.4G antenna and a dual WIFI 5G antenna. In addition, by arranging the first grounding part 15 and the second grounding part 16 at appropriate positions of the radiation part F1, multiple antennas can be fed into the same radiator (i.e., the radiation part F1) simultaneously, and better antenna performance and better isolation effect can be obtained.

[0055] It can be understood that in the embodiments of the present application, by adjusting the positions of the first grounding part 15 and the second grounding part 16, the first working mode to the fifth working mode can be effectively adjusted. For example, when adjusting the first grounding part 15 so that the first grounding part 15 is closer to the first feed-in source 12 than the third feed-in source 14, the fifth working mode (such as the GPS mode) is farther away from the first working mode (such as the WIFI 2.4G mode) and the second working mode (such as the WIFI 5G mode). On the contrary, the fifth working mode (such as the GPS mode) is closer to the first working mode (such as the WIFI 2.4G mode) and the second working mode (such as the WIFI 5G mode).

[0056] For another example, when adjusting the second grounding part 16 so that the second grounding part 16 is closer to the second feed-in source 13 than the third feed-in source 14, the fifth working mode (such as the GPS mode) is farther away from the third working mode (such as the WIFI 2.4G mode) and the fourth working mode (such as the WIFI 5G mode). On the contrary, the fifth working mode (such as the GPS mode) is closer to the third working mode (such as the WIFI 2.4G mode) and the fourth working mode (such as the WIFI 5G mode).

[0057] It can be understood that please refer to Figure 10 and Figure 11, in the embodiment of the present application, the antenna structure 100 further includes a first filtering unit 17 and a second filtering unit 18. The first filtering unit 17 is a high-pass filter (HPF). The second filtering unit 18 is a low-pass filter (LPF). One end of the first filtering unit 17 is electrically connected to the first feeding source 12 and / or the second feeding source 13, and the other end is electrically connected to the radiation part F1. One end of the second filtering unit 18 is electrically connected to the third feeding source 14, and the other end is electrically connected to the radiation part F1. In this way, the WIFI 2.4G antenna and the WIFI 5G antenna can radiate their energy through the high-pass filter and the radiation part F1. The GPS antenna can radiate its energy through the low-pass filter and the radiation part F1. That is, the first feeding source 12, the second feeding source 13, and the third feeding source 14 radiate their energy through the corresponding filtering units and through the radiation part F1, thereby effectively improving the bandwidth and antenna efficiency of GPS, WIFI 2.4G, and WIFI 5G.

[0058] In the embodiment of the present application, through the arrangement of the first filtering unit 17 and the second filtering unit 18, the antenna structure 100 can greatly improve the bandwidth and antenna efficiency of GPS, Wi-Fi 2.4G, and Wi-Fi 5G, and cover the applications in the GPS and Wi-Fi frequency bands. That is, the antenna structure 100 can obtain better performance, make the isolation effect of the antenna structure 100 more excellent, and can effectively and greatly improve the bandwidth and efficiency.

[0059] It can be understood. Please refer to again Figure 5 , in the embodiment of the present application, the metal part 110a of the frame 110 on both sides of the radiation part F1 can also be an antenna radiator or a simple metal frame. For example, when corresponding feeding sources are also arranged on the metal parts 110a on both sides of the radiation part F1, it can be used as an antenna radiator to operate in the corresponding frequency band.

[0060] It can be understood that in the embodiment of the present application, the metal part 110a in the frame 110 on both sides of the radiation part F1 may or may not exist according to the required frequency. For example, in one embodiment, the antenna structure 100 may not be provided with the first gap 120 and the second gap 121, and the radiation part F1 is composed of the metal part 110a in the complete frame 110. Another example is that when the antenna structure 100 also needs to operate in other frequency bands, the metal part 110a in the frame 110 on both sides of the radiation part F1 can be utilized, and corresponding feeding sources can be arranged, so that the metal parts 110a on both sides of the radiation part F1 exist and serve as corresponding radiation parts.

[0061] It can be understood. Please refer to againFigure 5 In the embodiment of the present application, the metal parts 110a in the frames 110 on both sides of the radiation part F1 can also be electrically connected to the ground plane 112 (i.e., grounded) or not grounded through corresponding grounding parts (such as grounding parts 19, 20). When the metal parts 110a in the frames 110 on both sides of the radiation part F1 are grounded through corresponding grounding parts (such as grounding parts 19, 20), the positions of the grounding parts can be adjusted according to the required frequency.

[0062] It can be understood that in the embodiment of the present application, the shape, length, width, etc. of the radiation part F1 in the antenna structure 100 can be adjusted according to the required frequency. Similarly, the settings of the gap, feeding source and grounding part of the antenna structure 100 can also be adjusted according to the required frequency. That is, the antenna structure 100 is not limited to operating in the above-mentioned GPS, WIFI 2.4G, WIFI 5G frequency bands. It can also be configured as a diversity antenna, super intermediate frequency (1447.9 - 1510.9 MHz) antenna, ultra high frequency (3400 - 3800 MHz) antenna, N77, N78 and N79 antennas, etc. according to requirements, and then operate in the corresponding frequency bands.

[0063] In summary, the antenna structure 100 constitutes a three-feed common antenna structure. By setting the first grounding part 15 and the second grounding part 16, the antenna structure 100 has good performance, and the isolation effect of the antenna structure 100 is more excellent, with improved bandwidth and optimal antenna efficiency. Furthermore, by setting the first filtering unit 17 and the second filtering unit 18, the isolation degree of the antenna structure 100 can be further improved, and its bandwidth and antenna efficiency can be greatly improved.

[0064] The above embodiments are only used to illustrate the technical solutions of the present application and are not restrictive. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application. Those skilled in the art can also make other changes within the spirit of the present application for use in the design of the present application, as long as they do not deviate from the technical effects of the present application. These changes made according to the spirit of the present application should all be included within the scope claimed by the present application.

Claims

1. An antenna structure of an electronic device, characterized in that, The antenna structure includes a radiation portion, a first feeding source, a second feeding source, a third feeding source, a first grounding portion, and a second grounding portion. The radiation portion is formed by a part of the metal frame of the electronic device. The first feeding source, the second feeding source, and the third feeding source are arranged at intervals. The third feeding source is arranged between the first feeding source and the second feeding source. The first feeding source, the second feeding source, and the third feeding source are all electrically connected to the radiation portion to feed a current signal to the radiation portion and cause the radiation portion to form multiple antennas. The first grounding portion and the second grounding portion are arranged at intervals. The first grounding portion is arranged between the first feeding source and the third feeding source. The second grounding portion is arranged between the third feeding source and the second feeding source. One ends of the first grounding portion and the second grounding portion are both electrically connected to the radiation portion, and the other ends are grounded to improve the isolation degree between the multiple antennas.

2. The antenna structure according to claim 1, characterized in that: A first slot and a second slot are provided on the metal frame. Both the first slot and the second slot cut off the metal frame. The metal frame between the first slot and the second slot constitutes the radiation portion.

3. The antenna structure according to claim 2, characterized in that: The first feeding source is electrically connected to one end of the radiation portion close to the first slot. The second feeding source is electrically connected to one end of the radiation portion close to the second slot.

4. The antenna structure according to claim 3, wherein: When a current is fed from the first feeding source, the current is fed into the radiation portion and flows toward the first slot, thereby exciting a first working mode to generate a radiation signal in a first radiation frequency band. When a current is fed from the first feeding source, the current is fed into the radiation portion and flows into the first grounding portion, thereby exciting a second working mode to generate a radiation signal in a second radiation frequency band. When a current is fed from the second feeding source, the current is fed into the radiation portion and flows toward the second slot, thereby exciting a third working mode to generate a radiation signal in a third radiation frequency band. When a current is fed from the second feeding source, the current is fed into the radiation portion and flows into the second grounding portion, thereby exciting a fourth working mode to generate a radiation signal in a fourth radiation frequency band. When a current is fed from the third feeding source, the current is fed into the radiation portion and flows from the first grounding portion into the second grounding portion, thereby exciting a fifth working mode to generate a radiation signal in a fifth radiation frequency band.

5. The antenna structure according to claim 4, wherein: Both the first working mode and the third working mode are WIFI 2.4GHz modes. The second working mode and the fourth working mode are WIFI 5GHz modes. The fifth working mode is a GPS mode.

6. The antenna structure according to claim 1, wherein: The antenna structure further includes a first filtering unit. The first filtering unit is a high-pass filter. One end of the first filtering unit is electrically connected to the first feeding source and / or the second feeding source, and the other end is electrically connected to the radiation portion.

7. The antenna structure according to claim 1, characterized in that: The antenna structure further includes a second filtering unit. The second filtering unit is a low-pass filter. One end of the second filtering unit is electrically connected to the third feeding source, and the other end is electrically connected to the radiation portion.

8. The antenna structure according to claim 1, characterized in that: The metal frames on both sides of the radiation portion are grounded through corresponding grounding portions.

9. The antenna structure according to claim 1, wherein: The metal frames on both sides of the radiation part are electrically connected to corresponding feeding sources to feed current signals to the metal frames on both sides of the radiation part.

10. An electronic device, characterized in that: The electronic device includes the antenna structure according to any one of claims 1 to 9.

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