Electronic device

Abstract

The application provides an electronic device, which comprises a reference ground, a first feed source, a first antenna radiator and a grounding lead. The first antenna radiator comprises a first radiation section and a second radiation section connected by a bend. The second radiation section forms a second free end away from one end of the first radiation section, and the connection between the first radiation section and the second radiation section forms a bend connection point; the first antenna radiator has a first electrical connection point arranged on the second radiation section, and a first feeding point arranged on a side of the first electrical connection point away from the second free end and electrically connected with the first feed source; the grounding lead is arranged on a side of the second radiation section, one end of the grounding lead is electrically connected with the first electrical connection point, and the other end of the grounding lead extends towards a direction away from the first radiation section and is electrically connected with the reference ground. The second radiation section between the grounding lead, the first electrical connection point and the bend connection point, and the first radiation section generate a first resonance mode. The electronic device provided by the application can reduce the influence of user holding on the radiation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, in particular to an electronic device. BACKGROUND

[0002] In the related art, in some application scenarios, the antenna radiator of the electronic device is prone to being held by the user, which causes the efficiency of the antenna radiator to be greatly reduced, and the communication performance of the electronic device is poor. SUMMARY

[0003] The present application provides an electronic device capable of reducing the influence of user holding on the radiation efficiency.

[0004] Specifically, the present application provides an electronic device, comprising:

[0005] a reference ground plate; and

[0006] a first antenna unit comprising a first feed source, a first antenna radiator and a ground lead, the first antenna radiator comprising a first radiation section and a second radiation section connected by a bend, the first radiation section having a first free end formed at an end thereof away from the second radiation section, the second radiation section having a second free end formed at an end thereof away from the first radiation section, a bend connection point being formed at a connection between the first radiation section and the second radiation section, the first antenna radiator having a first electrical connection point provided on the second radiation section, and a first feeding point provided on a side of the first electrical connection point away from the second free end and electrically connected to the first feed source, the ground lead being provided on a side of the second radiation section facing the reference ground plate, one end of the ground lead being electrically connected to the first electrical connection point, and the other end of the ground lead extending towards a direction away from the first radiation section and being electrically connected to the reference ground plate.

[0007] The second radiation section between the ground lead, the first electrical connection point and the bend connection point, and the first radiation section generate a first resonance mode supporting 1 / 4 wavelength of a first frequency band under excitation of the first feed source.

[0008] The electronic device provided in the application comprises a reference floor, a first feed source, a first antenna radiator and a grounding lead. The first radiation section and the second radiation section of the first antenna radiator are connected by bending, the first feed point is electrically connected to the first feed source, the grounding lead is arranged on the side of the second radiation section facing the reference floor, one end of the grounding lead is electrically connected to the first electrical connection point, and the other end extends in the direction away from the first radiation section and is electrically connected to the reference floor. In the application scenario in which the second radiation section is held by a user, the grounding lead can avoid the holding position of the user. At the same time, the first antenna radiator between the grounding lead and the first electrical connection point to the end of the second radiation section away from the first radiation section generates a first resonance mode supporting 1 / 4 wavelength of the first frequency band under the excitation of the first feed source, so that the current strong area of the first resonance mode is located at the grounding lead, avoiding the holding position of the user. Therefore, the influence of user holding on the radiation efficiency of the first antenna radiator can be reduced, and the communication performance of the electronic device in the holding scenario can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced.

[0010] Figure 1 A structural schematic diagram of an electronic device provided in the application;

[0011] Figure 2 A structural schematic diagram of a first antenna radiator in the electronic device shown in Figure 1

[0012] An application schematic diagram of the electronic device in a left-hand holding scenario; Figure 3 Figure 1 An application schematic diagram of the electronic device in a right-hand holding scenario;

[0013] Figure 4 Figure 1 A structural schematic diagram of a first antenna unit of the electronic device shown in

[0014] Figure 5 A structural schematic diagram in which the grounding lead of the electronic device is electrically connected to the first electrical connection point of the first antenna radiator; Figure 1

[0015] A schematic diagram in which the first antenna unit of the electronic device generates a first resonance mode; Figure 6 Figure 5 A structural schematic diagram in which the first antenna unit of the electronic device generates a first resonance mode;

[0016] Figure 7 Figure 6 A structural schematic diagram in which the first antenna unit of the electronic device generates a first resonance mode;

[0017] Figure 8 A structural schematic diagram in which the first antenna unit of the electronic device generates a first resonance mode;​​​​Figure 7 a first antenna unit of the electronic device shown generates a first resonance mode corresponding to a 1 / 4 wavelength mode of the first frequency band;

[0018] Figure 9 To Figure 8 a ground lead of the electronic device shown is located on the same side of the first radiation section as the first antenna radiator;

[0019] Figure 10 To Figure 8 an extension size of a ground lead of the electronic device shown is greater than or equal to 1 / 16 wavelength of the first frequency band and less than or equal to 3 / 16 wavelength of the first frequency band;

[0020] Figure 11 To Figure 8 a first feed point of the electronic device shown is located at the second radiation section;

[0021] Figure 12 To Figure 11 a second resonance mode generated by the first antenna unit of the electronic device shown;

[0022] Figure 13 To Figure 11 a distance between a first electrical connection point of the first antenna radiator of the electronic device shown and the first feed point is less than or equal to a distance between the first electrical connection point and a free end of the second radiation section;

[0023] Figure 14 To Figure 11 a first electrical connection point of the first antenna radiator of the electronic device shown is located at the free end of the second radiation section;

[0024] Figure 15 To Figure 11 a first feed point of the electronic device shown is located at the first radiation section;

[0025] Figure 16 To Figure 13 the first antenna unit of the electronic device shown is located at a corner of the reference floor;

[0026] Figure 17 To Figure 16 the first antenna radiator of the electronic device shown is located on the bezel;

[0027] Figure 18 To Figure 16 the first antenna radiator of the electronic device shown is located in the bezel;

[0028] Figure 19 To Figure 13The first antenna unit of the electronic device also includes a structural diagram of a first matching circuit and a first switch circuit;

[0029] Figure 20 The first matching circuit of the electronic device includes a structural diagram of a capacitor and / or an inductor; Figure 19 The first matching circuit of the electronic device includes a structural diagram of a capacitor and / or an inductor;

[0030] Figure 21 The electronic device also includes a structural diagram of a second antenna unit; Figure 19 The electronic device also includes a structural diagram of a second antenna unit;

[0031] Figure 22 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 21 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0032] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 23 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 21 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0033] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 24 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 23 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0034] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 25 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 24 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0035] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 26 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 24 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0036] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 27 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 24 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0037] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 28 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 27 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0038] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 29 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 27 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge;

[0039] The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 30 The second antenna unit of the electronic device has a second antenna radiator located on a side of a third edge of a reference floor facing away from a first edge; Figure 27Schematic view of the first antenna unit of the electronic device shown producing a fifth resonant mode;

[0040] Figure 31 For Figure 27 Schematic view of the electronic device shown further comprising a USB interface;

[0041] Figure 32 For Figure 31 Return loss curve of the first antenna unit of the electronic device shown;

[0042] Figure 33 For Figure 31 Radiation efficiency curve of the first antenna unit of the electronic device shown;

[0043] Figure 34 For Figure 31 Radiation efficiency curve of the electronic device shown in a left-hand holding scenario;

[0044] Figure 35 For Figure 31 Radiation efficiency curve of the electronic device shown in a right-hand holding scenario;

[0045] Figure 36 For Figure 31 Return loss curve of the second antenna unit of the electronic device shown;

[0046] Figure 37 For Figure 31 Radiation efficiency curve of the second antenna unit of the electronic device shown;

[0047] Figure 38 For Figure 31 Schematic view of the first antenna unit of the electronic device shown further comprising a parasitic stub arranged at a side of the second radiating section distal to the first radiating section;

[0048] Figure 39 For Figure 31 Schematic view of the first antenna unit of the electronic device shown producing a seventh resonant mode.

[0049] BRIEF DESCRIPTION OF THE DRAWINGS:

[0050] Electronic device 1000; reference floor 200; first antenna unit 100; first feed source 20; first antenna radiator 10; first radiation section 101; second radiation section 102; first feed point 103; ground lead 104; first lead end 140; second lead end 141; first electrical connection point 120; first free end 110; second free end 121; bending connection point 111; first edge 201; second edge 202; third edge 203; fourth edge 204; frame 300; first frame 31; second frame 32; third frame 33; fourth frame 34; first matching circuit 30; first switch circuit 40; second antenna unit 400; second feed source 401; second antenna radiator 402; second feed point 420; first ground point 421; first coupling gap 500; second switch circuit 50; second electrical connection point 112; second matching circuit 403; first sub-radiation section 113; second sub-radiation section 114; second coupling gap 600; USB interface 700; parasitic branch 800; third coupling gap 801. DETAILED DESCRIPTION

[0051] The technical solutions provided by the present application will be described clearly and completely below with reference to the drawings. Obviously, the embodiments described in the present application are only part of the embodiments, rather than all the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0052] In the present application, the phrase “embodiment” or “implementation” means that the specific features, structures or characteristics described in connection with the embodiment or implementation can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean that it refers to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0053] The terms “first”, “second”, and the like in the specification of the present application and claims and the above-described drawings are used to distinguish different objects, rather than to describe a specific order; the terms “include” and “have” and any variations thereof are intended to cover non-exclusive inclusion.

[0054] As Figure 1 shown, Figure 1This is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of this application. The electronic device 1000 can be a candybar or foldable mobile phone, tablet, etc. In this embodiment, the electronic device 1000 is taken as a candybar mobile phone. The electronic device 1000 includes a reference ground plane 200 and a first antenna element 100. The first antenna element 100 includes a first feed 20 and a first antenna radiator 10. Of course, the electronic device 1000 may also include a display screen, camera, etc.

[0055] Reference ground 200 refers to the portion of electronic device 1000 that is considered to be conductive ground and is not affected by any grounding configuration. Reference ground 200 may include the ground plane of the main circuit board, the ground plane of the secondary circuit board, the metal components of the middle frame, and conductive components electrically connected to one or more of the ground planes of the main circuit board, the secondary circuit board, and the metal components of the middle frame. The potential of reference ground 200 is conventionally zero.

[0056] The first feed source 20 is electrically connected to the RF chip. The first feed source 20 is capable of receiving the RF current provided by the RF chip.

[0057] like Figure 2 As shown, the material of the first antenna radiator 10 can be metal, alloy, etc. The first antenna radiator 10 includes a first radiating segment 101 and a second radiating segment 102 that are bent and connected. This application does not specifically limit the bending method between the first radiating segment 101 and the second radiating segment 102. For example, the first radiating segment 101 and the second radiating segment 102 can be bent at a right angle; or, the first radiating segment 101 and the second radiating segment 102 can be bent in an arc shape. In the following embodiments, a right-angled bend between the first radiating segment 101 and the second radiating segment 102 is used as an example.

[0058] For ease of description, in the following embodiments, the extension direction of the first radiating segment 101 is defined as the X-axis direction, and the extension direction of the second radiating segment 102 is defined as the Y-axis direction, as illustrated in the accompanying drawings. The extension direction of the first radiating segment 101 can be understood as the length direction of the first radiating segment 101. The extension direction of the second radiating segment 102 can be understood as the length direction of the second radiating segment 102. The extension directions of the first radiating segment 101 and the second radiating segment 102 can be perpendicular or nearly perpendicular. The end of the first radiating segment 101 away from the second radiating segment 102 forms a first free end 110. The end of the second radiating segment 102 away from the first radiating segment 101 forms a second free end 121. A bent connection point 111 is formed at the connection between the first radiating segment 101 and the second radiating segment 102. A "free end" can be understood as an end that is not electrically connected to a conductive element or has a gap between it and a conductive element.

[0059] The first antenna radiator 10 has a first feeding point 103. The first feeding point 103 is electrically connected with the first feeding source 20. The first feeding point 103 and the first feeding source 20 can be directly connected or indirectly connected. For example, the first feeding point 103 and the first feeding source 20 can be electrically connected through a conductive wire, a metal spring, a feeding probe, etc. The first antenna radiator 10 can generate a radiation current under the excitation of the first feeding source 20. It should be noted that the first feeding point 103 in the present application can be understood as a position on the first antenna radiator 10 specifically used for electrically connecting the first feeding source 20. The first feeding point 103 can be located on the first radiation section 101, or the first feeding point 103 can be located on the second radiation section 102.

[0060] Please refer to Figure 3 and Figure 4 , Figure 3 for Figure 1 an application diagram of the electronic device 1000 in a left-hand holding scenario (left-hand holding). Figure 4 for Figure 1 an application diagram of the electronic device 1000 in a right-hand holding scenario (right-hand holding). As can be seen from Figure 3 , in the left-hand holding scenario, the four fingers of the hand are placed on the second radiation section 102 of the first antenna radiator 10, which easily blocks the second free end 121. In this scenario, the first antenna radiator 10 is prone to frequency deviation, and the radiation efficiency is greatly reduced. As can be seen from Figure 4 , in the right-hand holding scenario, the thumb almost holds the second radiation section 102 of the first antenna radiator 10. In this scenario, the radiation energy of the second radiation section 102 is greatly absorbed by the palm, and the radiation efficiency is greatly reduced. Experimental data show that when the first antenna radiator 10 works in a low frequency band (Lower Band, LB), whether in the left-hand holding scenario or in the right-hand holding scenario, the radiation efficiency of the first antenna radiator 10 is reduced by almost 7dB-8dB.

[0061] Obviously, in use scenarios such as Figure 3 , Figure 4 , it is difficult to ensure the communication performance of the electronic device 1000 by relying only on the first antenna radiator 10 for radiation. Therefore, as Figure 5As shown, the first antenna unit 100 of the electronic device 1000 provided in the present application further comprises a grounding lead 104. The first antenna radiator 10 further has a first electrical connection point 120 arranged at the second radiating section 102. The first electrical connection point 120 is arranged at a side of the first feeding point 103 facing the second free end 121. In other words, the first feeding point 103 is arranged at a side of the first electrical connection point 120 facing away from the second free end 121.

[0062] The grounding lead 104 is arranged at a side of the second radiating section 102 facing the reference ground plane 200. One end of the grounding lead 104 is electrically connected to the first electrical connection point 120, and the other end of the grounding lead 104 extends towards a direction away from the first radiating section 101 and is electrically connected to the reference ground plane 200.

[0063] Specifically, the grounding lead 104 is arranged at a side of the second radiating section 102. In other words, the grounding lead 104 and the second radiating section 102 have a certain distance of separation. In one possible implementation, the distance of separation between the grounding lead 104 and the second radiating section 102 can be greater than or equal to 0.5 mm and less than or equal to 5 mm. In the embodiment of the present application, the distance of separation between the grounding lead 104 and the second radiating section 102 can be referred to as LI shown in FIG. 1. Figure 5

[0064] In one possible implementation, the grounding lead 104 and the second radiating section 102 can extend in the same direction and are not collinear. The grounding lead 104 and the second radiating section 102 can extend in the same direction, which means that the grounding lead 104 and the second radiating section 102 can be parallel or approximately parallel. The grounding lead 104 and the second radiating section 102 are not collinear, which means that the extension line of the grounding lead 104 does not coincide with the second radiating section 102. It can be understood that, in the embodiment of the present application, the grounding lead 104 extends along the Y-axis direction, and the grounding lead 104 and the second radiating section 102 are arranged in separation in the X-axis direction. Of course, in other possible implementations, the extension direction of the grounding lead 104 and the extension direction of the second radiating section 102 can intersect.

[0065] The material and width of the grounding lead 104 are not specifically limited in the present application. For example, the material of the grounding lead 104 can be metal, alloy, etc. The width of the grounding lead 104 can be less than or equal to the width of the second radiating section 102. In the following embodiments, the end of the grounding lead 104 electrically connected to the first electrical connection point 120, i.e., one end of the grounding lead 104, is described as the first lead end 140; the other end of the grounding lead 104 electrically connected to the reference ground plane 200, i.e., the other end of the grounding lead 104, is described as the second lead end 141, which will not be described hereinafter.

[0066] As​Figure 6 As shown, the first lead end 140 is electrically connected to the first electrical connection point 120, and the second lead end 141 is located on the side of the first lead end 140 away from the first radiating section 101 and is electrically connected to the reference ground plate 200. In this application, the first lead end 140 and the second lead end 141 can be understood as two ends of the ground lead 104.

[0067] The first electrical connection point 120 can be understood as a position on the second radiating section 102 specifically used for electrically connecting the ground lead 104. It can be understood that the first electrical connection point 120 is closer to the second free end 121 than the first feeding point 103.

[0068] Optionally, when the first feeding point 103 is located on the first radiating section 101, the first electrical connection point 120 can be located at any position on the second radiating section 102. When the first feeding point 103 is located on the second radiating section 102, the first electrical connection point 120 is located between the first feeding point 103 and the second free end 121.

[0069] The first lead end 140 and the first electrical connection point 120 can be directly electrically connected or indirectly electrically connected. For example, the first lead end 140 and the first electrical connection point 120 can be electrically connected through a conductive wire, a metal spring, a feeding probe, etc. When the first lead end 140 and the first electrical connection point 120 are electrically connected through a conductive wire, the conductive wire and the ground lead 104 can be integrally formed or connected together. The second lead end 141 and the reference ground plate 200 can be directly electrically connected or indirectly electrically connected. For example, the second lead end 141 and the reference ground plate 200 can be electrically connected through a conductive wire, a metal spring, a feeding probe, etc. It can be understood that one end of the ground lead 104 close to the first radiating section 101 is electrically connected to the second radiating section 102, and the other end of the ground lead 104 away from the first radiating section 101 is electrically connected to the reference ground plate 200.

[0070] In this way, the first antenna radiator 10 between the reference ground plate 200, the ground lead 104, the first electrical connection point 120 and the first free end 110 can be understood as being combined to form an "inverted F-type antenna".

[0071] Please refer to Figure 6 and Figure 7The ground lead 104, the second radiating segment 102 between the first electrical connection point 120 and the bent connection point 111, and the first radiating segment 101, under the excitation of the first feed 20, generate a first resonant mode supporting 1 / 4 wavelength of the first frequency band. In other words, the ground lead 104 and the first antenna radiator 10 between the first electrical connection point 120 and the first free end 110 generate a first resonant mode supporting 1 / 4 wavelength of the first frequency band under the excitation of the first feed 20. It can be understood that the first resonant mode supporting 1 / 4 wavelength of the first frequency band is generated between the second lead end 141 and the first free end 110 under the excitation of the first feed 20. Figure 7 The dashed line with an arrow in the middle indicates the current distribution in the first resonant mode.

[0072] In one possible implementation, the first electrical connection point 120 may be located at the second free end 121. When the first electrical connection point 120 is located at the second free end 121, the grounding lead 104, the second radiating segment 102, and the first radiating segment 101 generate a first resonant mode supporting 1 / 4 wavelength of the first frequency band under the excitation of the first feed source 20. In another possible implementation, the first electrical connection point 120 may be located between the second free end 121 and the bent connection point 111, excluding both the second free end 121 and the bent connection point 111. When the first electrical connection point 120 is located between the second free end 121 and the bent connection point 111, the grounding lead 104, the portion of the second radiating segment 102 between the first electrical connection point 120 and the first radiating segment 101, and the first radiating segment 101 generate a first resonant mode supporting 1 / 4 wavelength of the first frequency band under the excitation of the first feed source 20.

[0073] Since the reference ground 200, ground lead 104, and the first antenna radiator 10 between the first electrical connection point 120 and the first free end 110 form an "inverted-F antenna", the first resonant mode generated by the ground lead 104, the second radiating segment 102 between the first electrical connection point 120 and the bent connection point 111, and the first radiating segment 101 under the excitation of the first feed 20 can be understood as the inverted-F antenna (IFA) mode.

[0074] like Figure 8 As shown, the first resonant mode corresponds to a 1 / 4 wavelength mode of the first frequency band. In other words, the sum of the length of the grounding lead 104, the length of the second radiating segment 102 between the first electrical connection point 120 and the bent connection point 111, and the length of the first radiating segment 101 is equal to 1 / 4 wavelength of the first frequency band. The length of the grounding lead 104 in this embodiment can be referred to the attached figure. Figure 8L2. The length of the second radiation section 102 between the first electrical connection point 120 and the bending connection point 111 can refer to the length L3 shown in FIG. 3. Figure 8 L4. The sum of the length of the ground lead 104, the length of the second radiation section 102 between the first electrical connection point 120 and the bending connection point 111, and the length of the first radiation section 101, i.e., the sum of L2, L3 and L4, is described as the overall size of the "inverted F antenna" in the following embodiments. Figure 8 L4. The sum of the length of the ground lead 104, the length of the second radiation section 102 between the first electrical connection point 120 and the bending connection point 111, and the length of the first radiation section 101, i.e., the sum of L2, L3 and L4, is described as the overall size of the "inverted F antenna" in the following embodiments.

[0075] The first frequency band can be, but is not limited to, an LB frequency band, or a Middle High Band (MHB) frequency band, or an Ultra High Band (UHB) frequency band. The LB frequency band is a frequency band lower than 1 GHz. The MHB frequency band is a frequency band from 1 GHz to 3 GHz. The UHB frequency band is a frequency band from 3 GHz to 10 GHz. In a possible implementation, the first frequency band is the LB frequency band. The overall size of the "inverted F antenna" is about 40 mm to 90 mm.

[0076] The electronic device 1000 provided in the present application includes a reference ground plate 200, a first feed source 20, a first antenna radiator 10, and a ground lead 104. Since the first radiation section 101 and the second radiation section 102 of the first antenna radiator 10 are connected in a bending manner, the first feed point 103 is electrically connected to the first feed source 20, the ground lead 104 is arranged on one side of the second radiation section 102, the first lead end 140 is electrically connected to the first electrical connection point 120, and the second lead end 141 is located on the side of the first lead end 140 away from the first radiation section 101 and is electrically connected to the reference ground plate 200. In this way, in the application scenario where the second radiation section 102 is held by a user, the ground lead 104 can avoid the holding position of the user. At the same time, since the ground lead 104, the second radiation section 102 between the first electrical connection point 120 and the bending connection point 111, and the first radiation section 101 generate a first resonant mode supporting a 1 / 4 wavelength of the first frequency band under the excitation of the first feed source 20, the current strong area of the first resonant mode is located at the ground lead 104, avoiding the holding position of the user. Therefore, the influence of user holding on the radiation efficiency of the first antenna radiator 10 can be reduced, and the communication performance of the electronic device 1000 in the holding scenario can be ensured.

[0077] Specifically, in the application scenario where the second radiation section 102 is held by a user, the ground lead 104 can avoid the holding position of the user. Figure 3In the left-hand grip scenario shown, when the first antenna element 100 generates the first resonant mode under the excitation of the first feed 20, since the first resonant mode corresponds to the 1 / 4 wavelength mode of the first frequency band, the main strong current region is located in the ground lead 104. The ground lead 104 is far from the user's fingers, separated from the user by the second radiation segment 102. Therefore, the user cannot grip the strong current region, and the user's fingers cannot touch the grounding terminal of the first antenna element 100. Thus, in the first resonant mode, the frequency offset caused by the user's grip is improved. And... Figure 4 In the right-hand grip scenario shown, because the grounding lead 104 is away from the user's fingers and is not directly gripped by the user, and a certain reverse current is generated between the grounding lead 104 and the second radiating segment 102, forming a magnetic field that partially cancels out the magnetic field, the effect of the user's grip on the absorption of radiated energy of the first antenna element 100 will be further reduced, thereby reducing the decrease in radiation efficiency in the grip scenario.

[0078] Among them, such as Figure 9 As shown, the first radiating segment 101 and the second radiating segment 102 are L-shaped. The grounding lead 104 is located on the same side of the second radiating segment 102 as the first radiating segment 101. It can be understood that the grounding lead 104 is located inside the first antenna radiator 10.

[0079] The first antenna unit 100 in this application has a compact structure and small size. In application scenarios where the second radiating segment 102 of the first antenna radiator 10 is easily held by the user, the grounding lead 104 located inside the first antenna radiator 10 is more likely to avoid the user's holding position, simplifying the structural design of the electronic device 1000. In addition, when the first radiating segment 101 and the second radiating segment 102 of the first antenna radiator 10 are located at the edge of the electronic device 1000, by placing the grounding lead 104 on the same side of the second radiating segment 102 as the first radiating segment 101, the grounding lead 104 can be placed inside the electronic device 1000, which can avoid affecting the appearance of the electronic device 1000 and makes the electrical connection between the first lead end 140 and the first electrical connection point 120, and the electrical connection between the second lead end 141 and the reference ground 200 simpler and more reliable.

[0080] In one possible embodiment, such as Figure 10 As shown, the extension dimension of the grounding lead 104 is greater than or equal to 1 / 16 of the wavelength of the first frequency band and less than or equal to 3 / 16 of the wavelength of the first frequency band. The extension dimension of the grounding lead 104 can be referred to in the appendix. Figure 10The extension size of the ground lead 104, i.e. the size of the ground lead 104 along the Y-axis, can also be understood as the length of the ground lead 104. It can be understood that the size of the ground lead 104 is greater than or equal to 1 / 4 of the overall size of the "inverted F antenna" and less than or equal to 3 / 4 of the overall size of the "inverted F antenna". In one possible implementation, the first frequency band is the LB frequency band. The extension size of the ground lead 104 is about 10 mm to 30 mm.

[0081] By making the extension size of the ground lead 104 greater than or equal to 1 / 16 of the wavelength of the first frequency band and less than or equal to 3 / 16 of the wavelength of the first frequency band, the extension size of the first radiation section 101 and the extension size of the ground lead 104 can both be ensured not to be too short or too long while the first resonance mode corresponds to the 1 / 4 wavelength mode of the first frequency band, so that the first resonance mode is the 1 / 4 wavelength IFA mode generated by the ground lead 104, the first electric connection point 120 and the bending connection point 111, and the first radiation section 101 under the excitation of the first feed source 20, so that the current strong area of the first resonance mode is located at the ground lead 104, and most of the radiation energy of the first antenna unit 100 also avoids the holding position of the user, thereby greatly reducing the influence of the user holding on the radiation efficiency of the first antenna radiator 10 and ensuring the communication performance of the electronic device 1000 in the left-hand and right-hand holding scenarios and similar scenarios.

[0082] In one possible embodiment, please refer to Figure 11 and Figure 12 The first feed point 103 is located at the second radiation section 102. The first electric connection point 120 is spaced apart from the second free end 121. The first radiation section 101 and the second radiation section 102 generate the second resonance mode supporting the 1 / 2 wavelength of the second frequency band under the excitation of the first feed source 20. Figure 12 The dashed line with an arrow in the middle shows the current distribution of the second resonance mode.

[0083] The first electric connection point 120 is spaced apart from the second free end 121 can be understood as that the first electric connection point 120 does not coincide with the second free end 121, i.e. the first electric connection point 120 is not arranged at the second free end 121.

[0084] For example, the first feeding point 103 can be located at the middle of the second radiating section 102; or, the first feeding point 103 can be located at any position between the middle of the second radiating section 102 and the bending connection point 111; or, the first feeding point 103 can be located at any position between the middle of the second radiating section 102 and the second free end 121.

[0085] It can be understood that when the first feeding point 103 is located at the middle of the second radiating section 102, the first electrical connection point 120 is located at any position between the middle of the second radiating section 102 and the second free end 121, excluding the middle of the second radiating section 102 and the second free end 121. At this time, the first electrical connection point 120 is relatively close to the second free end 121. When the first feeding point 103 is located at any position between the middle of the second radiating section 102 and the bending connection point 111, the first electrical connection point 120 can be located at any position between the first feeding point 103 and the middle of the second radiating section 102, which can include the middle of the second radiating section 102. At this time, the first electrical connection point 120 is relatively close to the first radiating section 101; the first electrical connection point 120 can also be located at any position between the middle of the second radiating section 102 and the second free end 121, excluding the second free end 121. At this time, the first electrical connection point 120 is relatively close to the second free end 121. When the first feeding point 103 is located at any position between the middle of the second radiating section 102 and the second free end 121, the first electrical connection point 120 is located at any position between the first feeding point 103 and the second free end 121, excluding the second free end 121. At this time, the first electrical connection point 120 is relatively close to the second free end 121.

[0086] In this way, the first radiating section 101 and the second radiating section 102 can form a "T-shaped antenna". The second resonant mode generated under the excitation of the first feed source 20 can be understood as a T-shaped antenna mode.

[0087] The second resonant mode corresponds to a 1 / 2 wavelength mode of the second frequency band. In other words, the sum of the length of the first radiating section 101 and the length of the second radiating section 102 is equal to 1 / 2 wavelength of the second frequency band. The length of the first radiating section 101 can be referred to as L4 shown in FIG. 10. The length of the second radiating section 102 can be referred to as L5 shown in FIG. 10. Figure 11 Figure 11 ​As shown in L5. In this embodiment, the first radiating segment 101 extends along the X-axis, and the extension dimension of the first radiating segment 101 is the dimension of the first radiating segment 101 along the X-axis. The extension dimension of the first radiating segment 101 is the length of the first radiating segment 101. The second radiating segment 102 extends along the Y-axis, and the extension dimension of the second radiating segment 102 is the dimension of the second radiating segment 102 along the Y-axis. The extension dimension of the second radiating segment 102 is the length of the second radiating segment 102. In the following embodiments, the sum of the lengths of the first radiating segment 101 and the second radiating segment 102, i.e., the sum of L4 and L5, is described as the overall size of the "T-shaped antenna".

[0088] The second frequency band can be, but is not limited to, the LB band, the MHB band, or the UHB band. In one possible implementation, the second frequency band can be the LB band or slightly higher. The overall size of the "T-shaped antenna" is approximately 60mm to 160mm.

[0089] In this embodiment, by positioning the first feed point 103 at the second radiating segment 102 and spacing the first electrical connection point 120 from the second free end 121, a “reverse F-type antenna” is formed by combining the reference ground plane 200, ground lead 104, the second radiating segment 102 between the first electrical connection point 120 and the bent connection point 111, and the first radiating segment 101. Simultaneously, the first radiating segment 101 and the second radiating segment 102 form a “T-type antenna.” At this time, the first radiating segment 101 and the second radiating segment 102 can generate a second resonant mode under the excitation of the first feed source 20. This facilitates adjusting the second frequency band corresponding to the second resonant mode, ensuring the second frequency band is within or close to the first frequency band, thereby widening the bandwidth of the first antenna element 100, enhancing its bandwidth efficiency, and ultimately improving the communication performance of the electronic device 1000.

[0090] In one possible implementation, such as Figure 13 As shown, the distance between the first electrical connection point 120 and the first feed point 103 is less than or equal to the distance between the first electrical connection point 120 and the second free end 121. The distance between the first electrical connection point 120 and the first feed point 103 can be referred to the attached diagram. Figure 13 As shown in L6. The distance between the first electrical connection point 120 and the second free end 121 can be referred to in the appendix. Figure 13 As shown in L7. It can be understood that the first electrical connection point 120 is located anywhere between the first feed point 103 and a corresponding intermediate point, excluding the first feed point 103, but including the corresponding intermediate point. The corresponding intermediate point is the midpoint between the first feed point 103 and the second free end 121.

[0091] The first electric connection point 120 and the second free end 121 are spaced apart by a distance greater than a preset distance, so as to facilitate the first radiating section 101 and the second radiating section 102 to generate the second resonant mode of 1 / 2 wavelength supporting the second frequency band under the excitation of the first feed source 20, so as to facilitate guaranteeing the bandwidth of the first antenna unit 100 is widened by the second resonant mode and the effect of enhancing the bandwidth efficiency of the first antenna unit 100 is strengthened.

[0092] The first resonant mode is a main mode. In other words, the first frequency band corresponding to the first resonant mode is the main working frequency band of the first antenna unit 100. It can be understood that the radiation efficiency of the first antenna unit 100 in the first frequency band is better than the radiation efficiency of the first antenna unit 100 in the second frequency band.

[0093] By making the first resonant mode a main mode, in the application scenario where the second radiating section 102 is held by a user, the current strong area of the main mode is located at the ground lead 104, which is less affected by the user holding, and can more compensate for the decrease in radiation efficiency caused by the user holding. The second resonant mode can be used as a reinforcing mode of the first resonant mode to further improve the radiation efficiency of the electronic device 1000. Of course, the second resonant mode can also support other frequency bands different from the first frequency band to expand the application range of the electronic device 1000.

[0094] The second frequency band can be higher than the first frequency band. For example, the first frequency band can be less than 1 GHz. The second frequency band can be greater than or equal to 1 GHz and less than or equal to 2 GHz. Since the first resonant mode corresponds to the 1 / 4 wavelength mode of the first frequency band, and the second resonant mode corresponds to the 1 / 2 wavelength mode of the second frequency band, the higher the frequency band, the shorter the wavelength, so making the second frequency band higher than the first frequency band is more conducive to reducing the length of the second radiating section 102 while improving the radiation efficiency of the electronic device 1000.

[0095] Of course, in other possible embodiments, as shown in FIG. 10, the first feed point 103 can be located at the first radiating section 101 or the second radiating section 102, and the first electric connection point 120 can be located at the second free end 121; or, as shown in FIG. 11, the first feed point 103 can be located at the first radiating section 101, and the first electric connection point 120 can be located at any position of the second radiating section 102. Figure 14 Figure 15 When the first electric connection point 120 is located at the second free end 121, the first antenna unit 100 is difficult to excite the second resonant mode. ​

[0096] The first frequency band can be below 1 GHz, meaning it can be the LB band. The lower the frequency band, the longer the corresponding antenna radiator. In this case, the antenna radiator is more easily blocked or jammed during handholding. Therefore, the grounding lead 104 is more effective in reducing the impact of user grip on the radiation efficiency of the first antenna radiator 10. For other MHB and UHB antenna radiators, it's more convenient to design them to avoid the user's grip position. Therefore, by designing the grounding lead 104 to reduce the impact of user grip on antenna radiators supporting the LB band, and by designing antenna radiators supporting the MHB and UHB bands to avoid the user's grip position as much as possible, the antenna radiator layout of the electronic device 1000 can be optimized, balancing the radiation efficiency of the LB, MHB, and UHB antenna radiators of the electronic device 1000.

[0097] In one possible embodiment, such as Figure 16 As shown, the reference floor 200 includes a first edge 201, a second edge 202, a third edge 203, and a fourth edge 204 connected end-to-end. The first edge 201 and the third edge 203 are positioned opposite each other. The second edge 202 and the fourth edge 204 are positioned opposite each other. In this embodiment, the first edge 201 and the third edge 203 are positioned opposite each other along the Y-axis. The second edge 202 and the fourth edge 204 are positioned opposite each other along the X-axis. The first radiating segment 101 is located on the side of the third edge 203 facing away from the first edge 201. The second radiating segment 102 is located on the side of the second edge 202 facing away from the fourth edge 204. The grounding lead 104 is located on the side of the second radiating segment 102 facing the fourth edge 204.

[0098] Understandably, the first antenna radiator 10 is located at the corner of the reference ground 200. The grounding lead 104 is located on the same side as the first radiating segment 101 and the second radiating segment 102, that is, the grounding lead 104 is located inside the first antenna radiator 10.

[0099] By making the reference floor 200 include a first edge 201, a second edge 202, a third edge 203 and a fourth edge 204 connected in sequence, the first edge 201 is opposite to the third edge 203, and the second edge 202 is opposite to the fourth edge 204, the first radiation section 101 is located on the side of the third edge 203 away from the first edge 201, the second radiation section 102 is located on the side of the second edge 202 away from the fourth edge 204, and the ground lead 104 is located on the side of the second radiation section 102 facing the fourth edge 204, which is conducive to the first radiation section 101 and the second radiation section 102 being close to the outside of the electronic device 1000, thereby reducing the loss of the first antenna radiator 10 and improving the efficiency of the first antenna unit 100 in the first resonant mode and the second resonant mode, so as to improve the communication performance of the electronic device 1000.

[0100] Wherein, the length of the second edge 202 is greater than the length of the third edge 203. It can be understood that the second radiation section 102 corresponds to the long side of the electronic device 1000, and the first radiation section 101 corresponds to the short side of the electronic device 1000.

[0101] The related art shows that the long side of the electronic device 1000 is more likely to be held by the user during use. Therefore, by making the second radiation section 102 correspond to the long side of the electronic device 1000, and the first radiation section 101 correspond to the short side of the electronic device 1000, the problem that the radiation efficiency of the electronic device 1000 is greatly reduced due to user holding in most application scenarios can be solved.

[0102] In a possible embodiment, as Figure 17As shown, the electronic device 1000 further includes a frame 300. The frame 300 can be made of metal or alloy, etc. In the embodiment of the present application, the frame 300 includes a first frame 31, a second frame 32, a third frame 33 and a fourth frame 34 connected in sequence. The first frame 31 is arranged opposite to the third frame 33. The second frame 32 is arranged opposite to the fourth frame 34. The first frame 31 is located on a side of the first edge 201 of the reference floor 200 away from the third edge 203. The third frame 33 is located on a side of the third edge 203 of the reference floor 200 away from the first edge 201. The second edge 202 is located on a side of the second edge 202 of the reference floor 200 away from the fourth edge 204. The fourth edge 204 is located on a side of the fourth edge 204 of the reference floor 200 away from the second edge 202. In the embodiment of the present application, the first frame 31 is located on the top of the electronic device 1000. The third frame 33 is located on the bottom of the electronic device 1000. The second frame 32 and the fourth frame 34 are side frames of the electronic device 1000. The frame 300 surrounds to form a containing space. The reference floor 200, the first feed source 20 and the ground lead 104 are located in the containing space. The first antenna radiator 10 is located on the frame 300.

[0103] In the embodiment, the first antenna radiator 10 is integrated on the frame 300, which avoids occupying space in the electronic device 1000 and avoids the frame 300 from shielding the first antenna radiator 10, thereby reducing energy loss.

[0104] In a possible implementation, the first radiation section 101 of the first antenna radiator 10 can be located on the third frame 33 of the frame 300, and the second radiation section 102 of the first antenna radiator 10 can be located on the second frame 32 of the frame 300. In another possible implementation, the first radiation section 101 of the first antenna radiator 10 can be located on the third frame 33 of the frame 300, and the second radiation section 102 of the first antenna radiator 10 can be located on the fourth frame 34 of the frame 300. In the above two implementations, the first antenna unit 100 is arranged on the bottom of the electronic device 1000.

[0105] The related art shows that the bottom of the electronic device 1000 is more likely to be held by a user during use. Therefore, by arranging the first antenna unit 100 on the bottom of the electronic device 1000, the problem that the radiation efficiency of the electronic device 1000 is greatly reduced due to user holding in most application scenarios can be solved.

[0106] Of course, in other possible implementations, the first radiating segment 101 of the first antenna radiator 10 may be located on the first frame 31 of the frame 300, and the second radiating segment 102 of the first antenna radiator 10 may be located on the second frame 32 of the frame 300; or, the first radiating segment 101 of the first antenna radiator 10 may be located on the first frame 31 of the frame 300, and the second radiating segment 102 of the first antenna radiator 10 may be located on the fourth frame 34 of the frame 300. In this embodiment, the first antenna unit 100 is disposed on the top of the electronic device 1000.

[0107] Of course, in other possible embodiments, such as Figure 18 As shown, the frame 300 can be made of materials such as plastic. The first antenna radiator 10 can also be located within the frame 300.

[0108] Furthermore, such as Figure 19 As shown, the first antenna element 100 also includes a first matching circuit 30. The first matching circuit 30 is electrically connected between the first feed point 103 and the first feed source 20. Figure 20 As shown, the first matching circuit 30 may include capacitors and / or inductors. The first matching circuit 30 can be directly or indirectly electrically connected to the first feed point 103. The first matching circuit 30 can also be directly or indirectly electrically connected to the first feed source 20. The first matching circuit 30 is used to adjust the impedance of the first antenna element 100.

[0109] In this embodiment, since the ground lead 104 of the first antenna unit 100, the second radiating segment 102 between the first electrical connection point 120 and the bent connection point 111, and the first radiating segment 101 generate a first resonant mode supporting 1 / 4 wavelength of the first frequency band under the excitation of the first feed 20, and the first radiating segment 101 and the second radiating segment 102 generate a second resonant mode supporting 1 / 2 wavelength of the second frequency band under the excitation of the first feed 20, the first matching circuit 30 can achieve impedance matching in the first resonant mode and the second resonant mode, thereby improving the performance of the first antenna unit 100 in multiple resonant modes.

[0110] The first antenna unit 100 further comprises a first switch circuit 40. The first switch circuit 40 is electrically connected to the first radiating section 101 or the second radiating section 102, and is used to adjust the operating frequency band of the first antenna unit 100. The first switch circuit 40 can comprise a switch, and a capacitor and / or an inductor electrically connected between the switch and the reference ground plate 200. One end of the first switch circuit 40 is electrically connected to the first antenna radiator 10, and the other end is electrically connected to the reference ground plate 200. The first switch circuit 40 can be directly or indirectly electrically connected to the first antenna radiator 10. The first switch circuit 40 can be directly or indirectly electrically connected to the reference ground plate 200.

[0111] In the embodiment, the operating frequency band of the first antenna unit 100 can be any sub-band in the first frequency band. For example, when the first frequency band is the LB frequency band, the first switch circuit 40 can adjust the operating frequency band of the first antenna unit 100, so that the operating frequency band of the first antenna unit 100 is switched among the B5 frequency band (about 824-894 MHz), the B8 frequency band (about 880-960 MHz), and the B28 (about 703-803 MHz) frequency band.

[0112] The present application does not specifically limit the position where the first switch circuit 40 is electrically connected to the first antenna radiator 10. In one possible implementation, the first switch circuit 40 can be electrically connected between the first feeding point 103 and the first feed source 20. In other words, the first switch circuit 40 and the first matching circuit 30 can be integrated together. In another possible implementation, the first switch circuit 40 can be electrically connected to the second radiating section 102. In this embodiment, the first switch circuit 40 and the first matching circuit 30 are independently arranged. In a third possible implementation, the first switch circuit 40 can be electrically connected to the first radiating section 101. The following embodiments take the first switch circuit 40 electrically connected to the first radiating section 101 as an example.

[0113] In the embodiment, since the first resonant mode is the 1 / 4 wavelength IFA mode, and the second resonant mode is the 1 / 2 wavelength T mode, when the electrically connected point of the first switch circuit 40 electrically connected to the first antenna radiator 10 is located at or close to the first feeding point 103, the first resonant mode corresponding to the first frequency band can be switched, and the second resonant mode corresponding to the second frequency band is less affected.

[0114] It can be understood that by arranging the first matching circuit 30, the impedance of the first antenna radiator 10 can be adjusted to improve the radiation performance of the first antenna radiator 10. By arranging the first switch circuit 40, the equivalent electrical length of the first antenna radiator 10 can be changed to adjust the operating frequency band of the first antenna unit 100.

[0115] Further, as shown in Figure 21 The electronic device 1000 further includes a second antenna unit 400. The second antenna unit 400 includes a second feed source 401 and a second antenna radiator 402. The second feed source 401 is electrically connected to the radio frequency chip. The second feed source 401 is capable of receiving the radio frequency current provided by the radio frequency chip. The second antenna radiator 402 can be made of metal, alloy, etc. The second antenna radiator 402 is arranged on the side of the first radiation section 101 away from the second radiation section 102. The second antenna radiator 402 has a second feed point 420 electrically connected to the second feed source 401 and a first grounding point 421 arranged away from the second feed point 420 and electrically connected to the reference floor 200.

[0116] Please refer to Figure 21 and Figure 22 In the embodiment, the second antenna radiator 402 is located on the side of the third edge 203 of the reference floor 200 away from the first edge 201. The extension direction of the second antenna radiator 402 is the same as the extension direction of the first radiation section 101. It can be understood that the second antenna radiator 402 extends along the X-axis direction. The second feed point 420 is electrically connected to the second feed source 401. The first grounding point 421 is electrically connected to the reference floor 200. The second feed point 420 and the second feed source 401 can be directly connected or indirectly connected. For example, the second feed point 420 and the second feed source 401 can be electrically connected through a conductive wire, a metal spring, a feed probe, etc. The first grounding point 421 and the reference floor 200 can be directly connected or indirectly connected. For example, the first grounding point 421 and the reference floor 200 can be electrically connected through a conductive wire, a metal spring, a feed probe, etc. The second antenna radiator 402 is capable of generating a radiation current under the excitation of the second feed source 401.

[0117] It should be noted that the second feed point 420 in the present application can be understood as a position on the second antenna radiator 402 specifically used for electrically connecting the second feed source 401. The first grounding point 421 can be understood as a position on the second antenna radiator 402 specifically used for electrically connecting the reference floor 200. The working frequency band of the second antenna radiator 402 is higher than 1 GHz. In a possible embodiment, the working frequency band of the second antenna radiator 402 can be the MHB frequency band. Of course, in other possible embodiments, the working frequency band of the second antenna radiator 402 can also be the UWB frequency band.

[0118] By setting the second feed source 401 and the second antenna radiator 402, the second antenna radiator 402 is located on the side of the first radiation section 101 away from the second radiation section 102, and the operating frequency band of the second antenna radiator 402 is higher than 1 GHz, which can further increase the communication frequency band of the electronic device 1000 and expand the application range of the electronic device 1000.

[0119] Optionally, as shown in Figure 23 The second antenna radiator 402 and the end 110 of the first radiation section 101 away from the second radiation section 102 form a first coupling gap 500. In other words, the first coupling gap 500 is formed between the second antenna radiator 402 and the first free end 110. The size of the first coupling gap 500 can be 0.5 mm to 2 mm. In the embodiment of the present application, the first coupling gap 500 is formed between the free end 422 of the second antenna radiator 402 and the first free end 110. The free end 422 of the second antenna radiator 402 is in an open circuit state. The first grounding point 421 is located at the end of the second antenna radiator 402 away from the first radiation section 101. It can be understood that the first grounding point 421 is located at the end of the side of the second antenna radiator 402 away from the first radiation section 101. The second feed point 420 is located at any position between the first grounding point 421 and the free end 422 of the second antenna radiator 402.

[0120] The first antenna radiator 10 also has a second electrical connection point 112 arranged on the first radiation section 101 and spaced from the first free end 110. The first antenna unit 100 also includes a second switch circuit 50. The second switch circuit 50 can include a switch and a capacitor and / or an inductor, etc. One end of the second switch circuit 50 is electrically connected to the second electrical connection point 112, and the other end of the second switch circuit 50 is electrically connected to the reference ground plate 200. The second switch circuit 50 and the second electrical connection point 112 can be directly electrically connected or indirectly electrically connected. The other end of the second switch circuit 50 and the reference ground plate 200 can be directly electrically connected or indirectly electrically connected.

[0121] The second switch circuit 50 can be used to switch the operating frequency band of the second antenna unit 400. For example, when the second frequency band is the MHB frequency band, the second switch circuit 50 can adjust the operating frequency band of the second antenna unit 400, so that the operating frequency band of the second antenna unit 400 is switched in the B1 frequency band (about 1.9 GHz to 2.1 GHz), the B3 frequency band (about 1.7 GHz to 1.8 GHz), the B40 (about 2.3 GHz to 2.4 GHz) frequency band and the B41 (about 2.4 GHz to 2.6 GHz) frequency band.

[0122] As shown in Figure 24As shown, the second antenna unit 400 can further include a second matching circuit 403. The second matching circuit 403 is electrically connected between the second feeding point 420 and the second feed source 401, for adjusting the impedance of the second antenna unit 400. The second matching circuit 403 can include capacitance and / or inductance, etc.

[0123] The second electric connection point 112 is spaced apart from the first free end 110. In other words, the second electric connection point 112 does not coincide with the first free end 110, i.e. the second electric connection point 112 is not arranged at the first free end 110. It can be understood that the second electric connection point 112 is located at any position of the first radiating section 101 excluding the first free end 110. In this way, the first radiating section 101 between the second electric connection point 112 and the first free end 110 can serve as a parasitic branch of the second antenna radiator 402. In other words, the second antenna unit 400 further includes the first radiating section 101 between the second electric connection point 112 and the first free end 110. It can be understood that the first antenna unit 100 and the second antenna unit 400 share the first radiating section 101 between the second electric connection point 112 and the first free end 110. The second antenna unit 400 of the embodiment reuses the first radiating section 101 between the second electric connection point 112 and the first free end 110 as a parasitic branch of the second antenna radiator 402, which can increase the radiation energy of the second antenna unit 400 and improve the communication performance of the second antenna unit 400.

[0124] Please refer to Figure 25 and Figure 26 The second antenna radiator 402 and the first radiating section 101 between the first free end 110 and the second electric connection point 112 generate a third resonant mode and a fourth resonant mode under the excitation of the second feed source 401. Figure 25 The dashed line with an arrow in Figure 26 The dashed line with an arrow in

[0125] In this embodiment, the second antenna radiator 402 shares the same aperture as the first antenna radiator 10, enabling the second antenna unit 400 to generate a third resonant mode and a fourth resonant mode under the excitation of the second feed 401. By adjusting the third frequency band corresponding to the third resonant mode to be close to or partially overlap with the fourth frequency band corresponding to the fourth resonant mode, the third and fourth resonant modes can be superimposed, thereby widening the bandwidth and enhancing bandwidth efficiency. When the third frequency band corresponding to the third resonant mode is different from the fourth frequency band corresponding to the fourth resonant mode, the second antenna unit 400 can support different frequency bands, expanding the application scenarios of the electronic device 1000.

[0126] In one possible embodiment, such as Figure 27 As shown, the distance between the second electrical connection point 112 and the first free end 110 is slightly smaller than the extension dimension of the second antenna radiator 402. The distance between the second electrical connection point 112 and the first free end 110 can be referenced in the appendix. Figure 27 The extension dimensions of the second antenna radiator 402, shown in L8, can be referenced in the appendix. Figure 27 L9 is shown. The extended dimension of the second antenna radiator 402 is the length of the second antenna radiator 402. The distance between the second electrical connection point 112 and the first free end 110 is the extended dimension of the parasitic branch of the second antenna radiator 402. The extended dimension of the parasitic branch of the second antenna radiator 402 is the length of the parasitic branch of the second antenna radiator 402.

[0127] At this point, please refer to Figure 25 and Figure 26The third resonance mode includes a 1 / 4 wavelength mode generated by the second antenna radiator 402 and a same-current mode generated by the first radiation section 101 between the first free end 110 and the second electrical connection point 112. In the third resonance mode, the current intensity of the second antenna radiator 402 is stronger than that of the first radiation section 101 between one end of the second radiation section 102 and the second electrical connection point 112. The resonance frequency point of the third resonance mode is slightly greater than that of the second antenna radiator 402. The fourth resonance mode includes a 1 / 4 wavelength mode generated by the second antenna radiator 402 and a reverse-current mode generated by the first radiation section 101 between the first free end 110 and the second electrical connection point 112. In the fourth resonance mode, the current intensity of the second antenna radiator 402 is weaker than that of the first radiation section 101 between one end of the second radiation section 102 and the second electrical connection point 112. The resonance frequency point of the third resonance mode is slightly less than that of the first radiation section 101 between one end of the second radiation section 102 and the second electrical connection point 112. The resonance frequency point of the first radiation section 101 between one end of the second radiation section 102 and the second electrical connection point 112 in the third resonance mode and the fourth resonance mode is greater than that of the second antenna radiator 402. The third frequency band is lower than the fourth frequency band. For example, the third frequency band can include a frequency band of 1 GHz to 2.7 GHz. The fourth frequency band can include a frequency band of 2.7 GHz to 3 GHz. The embodiment can reduce the radiation efficiency notch of the second antenna unit 400 and is conducive to designing a wideband antenna.

[0128] Optionally, please refer to Figure 28 and Figure 29The first radiation section 101 includes a first sub-radiation section 113 connected to the second radiation section 102 and a second sub-radiation section 114 located at an end of the first sub-radiation section 113 away from the second radiation section 102. It can be understood that the second radiation section 102, the first sub-radiation section 113, the second sub-radiation section 114 and the second antenna radiator 402 are arranged in sequence. A first coupling gap 500 is formed between an end of the second sub-radiation section 114 away from the first sub-radiation section 113 and the second antenna radiator 402. A second coupling gap 600 is formed between the second sub-radiation section 114 and the first sub-radiation section 113. In other words, the two ends of the second sub-radiation section 114 are arranged away from the first sub-radiation section 113 and the second antenna radiator 402 respectively. The size of the second coupling gap 600 can be the same as or different from the size of the first coupling gap 500. In an embodiment, the size of the second coupling gap 600 can be 0.5mm-2mm. The second electrical connection point 112 is located at an end of the second sub-radiation section 114 away from the second antenna radiator 402. In the embodiment, the second sub-radiation section 114 of the first antenna radiator 10 simultaneously serves as a parasitic branch of the second antenna radiator 402 and a parasitic branch of the first sub-radiation section 113, i.e., the first antenna unit 100 and the second antenna unit 400 share the second sub-radiation section 114.

[0129] By sharing the second sub-radiation section 114 by the first antenna unit 100 and the second antenna unit 400, the number and size of the antenna radiators of the electronic device 1000 can be reduced. By arranging the two ends of the second sub-radiation section 114 away from the first sub-radiation section 113 and the second antenna radiator 402 respectively, the isolation of the first antenna unit 100 and the second antenna unit 400 can be improved.

[0130] In an embodiment, as shown in FIG. 1, the first antenna unit 100 and the second antenna unit 400 share the second sub-radiation section 114. The first sub-radiation section 113, the second sub-radiation section 114 and the second antenna radiator 402 are arranged in sequence. The second sub-radiation section 114 is arranged away from the first sub-radiation section 113 and the second antenna radiator 402 respectively. The second sub-radiation section 114 simultaneously serves as a parasitic branch of the second antenna radiator 402 and a parasitic branch of the first sub-radiation section 113. Figure 30 As shown in FIG. 1, the second radiation section 102 between the ground lead 104, the first lead end 140, the first electrical connection point 120 and the bending connection point 111, and the first sub-radiation section 113 generate a first resonant mode under the excitation of the first feed source 20. The second sub-radiation section 114 generates a fifth resonant mode under the excitation of the first feed source 20. The fifth resonant mode is used to support a fifth frequency band. Figure 30 The dashed line with an arrow in FIG. 1 represents the current distribution of the fifth resonant mode.

[0131] In an embodiment, the fifth frequency band is located within the first frequency band. The fifth resonant mode is used to enhance the bandwidth efficiency of the first resonant mode. For example, when the first frequency band is less than 1GHz, the fifth frequency band can be 0.6GHz-0.7GHz. In the embodiment, the large inductance ground is connected in series with the second switch circuit 50, which is equivalent to greatly increasing the equivalent electrical length of the second sub-radiation section 114.

[0132] Further, as shown in FIG. 1, the first antenna unit 100 and the second antenna unit 400 share the second sub-radiation section 114.Figure 31 As shown, the electronic device 1000 also includes a USB interface 700. At least a portion of the second antenna radiator 402 is disposed around the USB interface 700, and / or at least a portion of the first radiating segment 101 is disposed around the USB interface 700. It can be understood that in this embodiment, the first antenna unit 100 and the second antenna unit 400 are disposed at the bottom of the electronic device 1000.

[0133] Related technologies indicate that the bottom of the electronic device 1000 is more numerous and easier for users to hold during use. Therefore, by arranging at least a portion of the second antenna radiator 402 around the USB interface 700, and / or at least a portion of the first radiating segment 101 around the USB interface 700, the problem that the radiation efficiency of the electronic device 1000 is significantly reduced due to user grip in most application scenarios can be solved.

[0134] like Figure 32 As shown, Figure 32 for Figure 31 The return loss curve of the first antenna element 100 of the electronic device 1000 shown. Figure 32 Curve a shows that the first antenna element 100 generates a first resonant mode, a second resonant mode, and a fifth resonant mode under the excitation of the first feed 20. The first frequency band corresponding to the first resonant mode is the B5 frequency band, the second frequency band corresponding to the second resonant mode is 1.3GHz to 1.4GHz, and the fifth frequency band corresponding to the fifth resonant mode is 0.6GHz to 0.7GHz. Figure 32 Curve b indicates that the first antenna element 100 generates a first resonant mode, a second resonant mode, and a fifth resonant mode under the excitation of the first feed 20. The first frequency band corresponding to the first resonant mode is the B8 frequency band, the second frequency band corresponding to the second resonant mode is 1.3GHz to 1.4GHz, and the fifth frequency band corresponding to the fifth resonant mode is 0.6GHz to 0.7GHz. Figure 32 Curve c indicates that the first antenna element 100 generates a first resonant mode, a second resonant mode, and a fifth resonant mode under the excitation of the first feed 20. The first frequency band corresponding to the first resonant mode is the B28 frequency band, the second frequency band corresponding to the second resonant mode is 1.3GHz to 1.4GHz, and the fifth frequency band corresponding to the fifth resonant mode is 0.6GHz to 0.7GHz.

[0135] like Figure 33 As shown, Figure 33 for Figure 31 The radiation efficiency curve of the first antenna element 100 of the electronic device 1000 shown. Figure 33The middle curve d shows that the first antenna unit 100 has better radiation efficiency when the first frequency band corresponding to the first resonant mode is the B5 frequency band, and the radiation efficiency in the first resonant mode is better than the radiation efficiency in the second resonant mode and the radiation efficiency in the fifth resonant mode. Figure 33 The middle curve e shows that the first antenna unit 100 has better radiation efficiency when the first frequency band corresponding to the first resonant mode is the B8 frequency band, and the radiation efficiency in the first resonant mode is better than the radiation efficiency in the second resonant mode and the radiation efficiency in the fifth resonant mode. Figure 33 The middle curve f shows that the first antenna unit 100 has better radiation efficiency when the first frequency band corresponding to the first resonant mode is the B28 frequency band, and the radiation efficiency in the first resonant mode is better than the radiation efficiency in the second resonant mode and the radiation efficiency in the fifth resonant mode.

[0136] Figure 34 For Figure 31 The radiation efficiency curve area of the electronic device 1000 in the left-hand holding scene is shown. Figure 35 For Figure 31 The radiation efficiency curve area of the electronic device 1000 in the right-hand holding scene is shown. Figure 34 The middle curve g is the radiation efficiency curve of the first antenna unit 100 in the left-hand scene and the B5 frequency band. Figure 34 The middle curve h is the radiation efficiency curve of the first antenna unit 100 in the left-hand scene and the B8 frequency band. Figure 34 The middle curve i is the radiation efficiency curve of the first antenna unit 100 in the left-hand scene and the B28 frequency band. Figure 35 The middle curve j is the radiation efficiency curve of the first antenna unit 100 in the right-hand scene and the B5 frequency band. Figure 35 The middle curve k is the radiation efficiency curve of the first antenna unit 100 in the right-hand scene and the B8 frequency band. Figure 35 The middle curve l is the radiation efficiency curve of the first antenna unit 100 in the right-hand scene and the B28 frequency band. Table 1 is a radiation efficiency data table of the first antenna unit 100 in the free space, the left-hand holding scene, and the right-hand holding scene. In combination with Table 1 and Figure 34 and Figure 35It can be seen that when the operating frequency band of the first antenna unit 100 is the B28 frequency band, the radiation efficiency of the first antenna unit 100 in the left-hand holding scenario is reduced by about 2.7 dB compared with the radiation efficiency of the first antenna unit 100 in the free space, which is a great improvement compared with the reduction of about 7 dB to 8 dB before the ground lead 104 is not arranged; the radiation efficiency of the first antenna unit 100 in the right-hand holding scenario is reduced by about 2.2 dB compared with the radiation efficiency of the first antenna unit 100 in the free space, which is a great improvement compared with the reduction before the ground lead 104 is not arranged. When the operating frequency band of the first antenna unit 100 is the B5 frequency band, the radiation efficiency of the first antenna unit 100 in the left-hand holding scenario is reduced by about 3.3 dB compared with the radiation efficiency of the first antenna unit 100 in the free space, which is a great improvement compared with the reduction before the ground lead 104 is not arranged; the radiation efficiency of the first antenna unit 100 in the right-hand holding scenario is reduced by about 1.5 dB compared with the radiation efficiency of the first antenna unit 100 in the free space, which is a great improvement compared with the reduction before the ground lead 104 is not arranged. When the operating frequency band of the first antenna unit 100 is the B8 frequency band, the radiation efficiency of the first antenna unit 100 in the left-hand holding scenario is reduced by about 3.5 dB compared with the radiation efficiency of the first antenna unit 100 in the free space, which is a great improvement compared with the reduction before the ground lead 104 is not arranged; the radiation efficiency of the first antenna unit 100 in the right-hand holding scenario is reduced by about 1.6 dB compared with the radiation efficiency of the first antenna unit 100 in the free space, which is a great improvement compared with the reduction before the ground lead 104 is not arranged. In summary, by including the ground lead 104 in the first antenna unit 100, the radiation efficiency of the first antenna unit 100 can be reduced to about 3 dB in the left-hand holding scenario and the right-hand holding scenario, which is a great improvement compared with the reduction of about 7 dB to 8 dB before the ground lead 104 is not arranged.

[0137] Table 1:

[0138] Frequency band Free space Left hand grip Left hand drop Right hand grip Figure 36 B28 -5.3 -8.0 -2.7 -7.5 -2.2 B5 -5.5 -8.8 -3.3 -7.0 -1.5 B8 -5.8 -9.3 -3.5 -7.4 -1.6

[0139] As Figure 36 indicated, Figure 31 the Figure 36 return loss curve of the second antenna unit 400 of the electronic device 1000. Figure 36 The curve m indicates that the second antenna unit 400 generates a third resonance mode and a fourth resonance mode under the excitation of the second feed 401, the third resonance mode corresponds to a third frequency band of B1, and the fourth resonance mode corresponds to a fourth frequency band of 2.5 GHz to 3 GHz. Figure 36The curve n indicates that the second antenna unit 400 generates a third resonant mode and a fourth resonant mode under the excitation of the second feed source 401. When the third frequency band corresponding to the third resonant mode is the B3 frequency band, the fourth frequency band corresponding to the fourth resonant mode is 2.5GHz to 3GHz. Figure 36 The curve o indicates that the second antenna unit 400 generated a third resonant mode and a fourth resonant mode under the excitation of the second feed source 401. When the third resonant mode corresponds to the third frequency band B40, the fourth resonant mode corresponds to the fourth frequency band of 2.5GHz to 3GHz. Figure 37 The curve p indicates that the second antenna unit 400 generated a third resonant mode and a fourth resonant mode under the excitation of the second feed source 401. When the third frequency band corresponding to the third resonant mode is the B41 frequency band, the fourth frequency band corresponding to the fourth resonant mode is 2.5GHz to 3GHz.

[0140] like Figure 37 As shown, Figure 31 for Figure 37 The radiation efficiency curve of the second antenna element 400 of the electronic device 1000 shown. Figure 37 The curve q indicates that the radiation efficiency of the second antenna element 400 is better when the third frequency band corresponding to the third resonant mode is the B1 frequency band, and the radiation efficiency in the third resonant mode is better than that in the fourth resonant mode. Figure 37 The curve r indicates that the radiation efficiency of the second antenna element 400 is better when the third frequency band corresponding to the third resonant mode is the B3 frequency band, and the radiation efficiency in the third resonant mode is better than that in the fourth resonant mode. Figure 37 The curve s in the middle indicates that the radiation efficiency of the second antenna element 400 is better when the third frequency band corresponding to the third resonant mode is the B40 frequency band, and the radiation efficiency in the third resonant mode is better than that in the fourth resonant mode. Figure 38 The curve t shows that the radiation efficiency of the second antenna element 400 is better when the third frequency band corresponding to the third resonant mode is the B41 frequency band, and the radiation efficiency in the third resonant mode is better than that in the fourth resonant mode.

[0141] Furthermore, such as Figure 39As shown, the first antenna unit 100 further comprises a parasitic branch 800 disposed on the side of the second radiating section 102 away from the first radiating section 101. One end of the parasitic branch 800 and the second free end 121 form a third coupling gap 801. The size of the third coupling gap 801 can be 0.5mm-2mm. The size of the third coupling gap 801 can be the same as or different from the size of the first coupling gap 500. The grounding point of the parasitic branch 800 is located at the end of the parasitic branch 800 away from the second radiating section 102 and is electrically connected to the reference ground plane 200. It can be understood that the other end of the parasitic branch 800 is electrically connected to the reference ground plane 200. The grounding point of the parasitic branch 800 can be understood as the position of the parasitic branch 800 for electrically connecting the reference ground plane 200. The grounding point of the parasitic branch 800 and the reference ground plane 200 can be directly electrically connected or indirectly electrically connected. For example, the grounding point of the parasitic branch 800 and the reference ground plane 200 can be electrically connected through a conductive wire, a metal spring, a feed probe, etc. The parasitic branch 800 generates a sixth resonant mode under the excitation of the first feed source 20. The sixth resonant mode is used to support the sixth frequency band.

[0142] In a possible embodiment, the sixth frequency band can be different from the first frequency band. For example, the sixth frequency band can be a mobile hotspot (Wi-Fi) frequency band or a Bluetooth (Bit Torrent, BT) frequency band. The first antenna unit 100 of the embodiment can realize LB and WIFI or BT functions.

[0143] Further, as shown in Figure 39 The second radiating section 102 between the grounding lead 104, the first electrical connection point 120 and the second free end 121 generates a seventh resonant mode under the excitation of the first feed source 20. Figure 3 The dotted line with an arrow therein represents the current distribution of the seventh resonant mode. The seventh resonant mode is used to support the seventh frequency band.

[0144] Optionally, the seventh frequency band can be a WIFI frequency band or a BT frequency band. The first antenna unit 100 of the embodiment can realize LB and WIFI or BT functions. In addition, the embodiment in combination with the above-mentioned embodiment of the first antenna unit 100 further comprising a parasitic branch can realize dual-band WIFI function, or can realize single-band WIFI and BT functions.

[0145] The electronic device 1000 provided in the application comprises a reference floor 200, a first antenna unit 100 and a second antenna unit 400. The first antenna unit 100 comprises a first feed source 20, a first antenna radiator 10 and a grounding lead 104. The second antenna unit 400 comprises a second feed source 401 and a second antenna radiator 402. The second antenna radiator 402 is arranged opposite to the first antenna radiator 10 to form a co-aperture antenna, so that the second antenna unit 400 can generate a third resonant mode and a fourth resonant mode under the excitation of the second feed source 401. The first radiation section 101 of the first antenna radiator 10 comprises a second sub-radiation section 114, and the first antenna unit 100 further comprises a second switch circuit 50 electrically connected to one end of the second sub-radiation section 114 and the reference floor 200, so that the second antenna radiator 402 and the second sub-radiation section 114 generate the third resonant mode and the fourth resonant mode under the excitation of the second feed source 401. The first radiation section 101 of the first antenna radiator 10 comprises a first sub-radiation section 113 and a second sub-radiation section 114 arranged at intervals, i.e. a second coupling gap 600 is formed between the first sub-radiation section 113 and the second sub-radiation section 114, which can improve the isolation between the second antenna unit 400 and the first antenna unit 100. The arrangement of the grounding lead 104 in the first antenna unit 100 makes part of the radiation section of the first antenna radiator 10 and the grounding lead 104 form an inverted F-type antenna, and the first radiation section 101 and the second radiation section 102 of the first antenna radiator 10 are connected by bending to form a T-type antenna, so that the first antenna unit 100 can generate a first resonant mode supporting a 1 / 4 wavelength of a first frequency band and a second resonant mode supporting a 1 / 2 wavelength of a second frequency band under the excitation of the first feed source 20. The first sub-radiation section 113 and the second sub-radiation section 114 are arranged at intervals, so that the first sub-radiation section 113, part of the second radiation section 102 and the grounding lead 104 of the first antenna radiator 10 generate a first resonant mode of a 1 / 4 wavelength of the first frequency band; the first sub-radiation section 113 and the second radiation section 102 generate a first resonant mode of a 1 / 2 wavelength of the second frequency band; and the second sub-radiation section 114 generates a fifth resonant mode corresponding to a fifth frequency band. The parasitic branch 800 enables the first antenna unit 100 to further generate a fifth resonant mode supporting a sixth frequency band under the excitation of the first feed source 20. The end 121 of the grounding lead 104 away from the first radiation section 101 of the second radiation section 102 can also generate a seventh resonant mode supporting a seventh frequency band under the excitation of the first feed source 20. In this way, the electronic device 1000 can generate seven resonant modes, i.e. a first resonant mode, a second resonant mode, a third resonant mode, a fourth resonant mode, a fifth resonant mode, a sixth resonant mode and a seventh resonant mode, by comprising the reference floor 200, the first antenna unit 100 and the second antenna unit 400.The seven resonance modes generated by the electronic device 1000 can correspond to different frequency bands respectively, so that the electronic device 1000 can support communication of seven frequency bands. The frequency bands corresponding to the seven resonance modes generated by the electronic device 1000 can also be partially overlapped to improve the radiation efficiency of the electronic device 1000 under multiple frequency bands. In addition, the setting of the ground lead 104 improves the performance of the first antenna unit 100 in the left-hand holding scene and the right-hand holding scene; and the structure, position design and electrical connection design of the ground lead 104 are easy to implement, facilitating the production and preparation of the electronic device 1000, and without increasing the cost of the electronic device 1000.

[0146] The electronic device 1000 in Figure 4 As shown in the left-hand holding scene, when the first antenna unit 100 generates the first resonance mode under the excitation of the first feed 20, since the first resonance mode corresponds to the 1 / 4 wavelength mode of the first frequency band, the main current strong area is located at the ground lead 104, and the ground lead 104 can be away from the user's fingers, and there is a second radiation section 102 between the user and the ground lead 104, so the user cannot hold the strong current area, and the user's fingers cannot touch the ground return end of the first antenna unit 100, so that in the first resonance mode, the frequency deviation caused by the user holding is improved. While the electronic device 1000 in ​ the right-hand holding scene, the ground lead 104 can be away from the user's fingers and not be directly held by the user, and a certain reverse current is generated between the ground lead 104 and the second radiation section 102, forming a magnetic field to further reduce the effect of the user holding on the radiation energy absorption of the first antenna unit 100, thereby reducing the decrease of the radiation efficiency in the holding scene.

[0147] In other words, when the first resonance mode is excited, since a quarter wavelength current is generated, the main current strong area is at the ground return position, and the ground lead 104 is away from the user's fingers, and there is a second radiation section 102 of the first antenna radiator 10 between the user's fingers and the ground lead 104, so when the user holds the electronic device 1000, the user cannot hold the strong current area of the first resonance mode, and the user's fingers cannot touch the ground return end of the first antenna unit 100, that is, for the left-hand holding scene, the frequency deviation caused by the user holding is basically improved; for the right-hand holding scene, the holding absorption, the ground lead 104 is away from the user's holding position, is not directly held, and the second radiation section 102 exists, a reverse current is generated on the second radiation section 102, forming a magnetic field to further reduce the absorption effect of the user holding, and the superposition of the above reasons reduces the decrease of the radiation efficiency of the first antenna unit 100.

[0148] The features mentioned in the description, the claims and the drawings can be combined with each other in any technically meaningful way.

[0149] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are merely exemplary, and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application, and these improvements and refinements are also considered as the protection scope of the present application.

Claims

1. An electronic device, characterized in that, include: Reference flooring; and The first antenna element includes a first feed, a first antenna radiator, and a grounding lead. The first antenna radiator includes a first radiating segment and a second radiating segment that are bent and connected. The end of the first radiating segment away from the second radiating segment forms a first free end, and the end of the second radiating segment away from the first radiating segment forms a second free end. A bent connection point is formed at the connection between the first radiating segment and the second radiating segment. The first antenna radiator has a first electrical connection point located on the second radiating segment and a first feed point located at a distance from the first electrical connection point on the side away from the second free end and electrically connected to the first feed. The grounding lead is located at a distance from the side of the second radiating segment facing the reference ground. One end of the grounding lead is electrically connected to the first electrical connection point, and the other end extends in a direction away from the first radiating segment and is electrically connected to the reference ground. The grounding lead, the second radiating segment between the first electrical connection point and the bend connection point, and the first radiating segment generate a first resonant mode supporting 1 / 4 wavelength of the first frequency band under the excitation of the first feed source.

2. The electronic device according to claim 1, characterized in that, The extension dimension of the grounding lead is greater than or equal to 1 / 16 of the wavelength of the first frequency band and less than or equal to 3 / 16 of the wavelength of the first frequency band.

3. The electronic device according to claim 1, characterized in that, The first feed point is located in the second radiation segment, the first electrical connection point is spaced apart from the second free end, and the first radiation segment and the second radiation segment generate a second resonant mode supporting half the wavelength of the second frequency band under the excitation of the first feed source. The second frequency band is higher than the first frequency band, and the first resonant mode is the dominant mode among the second resonant mode and the first resonant mode.

4. The electronic device according to claim 3, characterized in that, The distance between the first electrical connection point and the first power supply point is less than or equal to the distance between the first electrical connection point and the second free end.

5. The electronic device according to any one of claims 1 to 4, characterized in that, The first frequency band is below 1 GHz.

6. The electronic device according to any one of claims 1 to 4, characterized in that, The reference floor includes a first edge, a second edge, a third edge, and a fourth edge connected end to end in sequence. The first edge is disposed opposite to the third edge, and the second edge is disposed opposite to the fourth edge. The length of the second edge is greater than the length of the third edge. The first radiating segment is located on the side of the third edge away from the first edge, and the second radiating segment is located on the side of the second edge away from the fourth edge.

7. The electronic device according to any one of claims 1 to 4, characterized in that, The first antenna unit further includes a first matching circuit and a first switching circuit. The first matching circuit is electrically connected between the first feed point and the first feed source and is used to adjust the impedance of the first antenna unit. The first switching circuit is electrically connected to the first radiating segment or the second radiating segment and is used to adjust the operating frequency band of the first antenna unit.

8. The electronic device according to any one of claims 1 to 4, characterized in that, The electronic device further includes a second antenna unit, which includes a second feed and a second antenna radiator. The second antenna radiator is spaced apart from the first radiating segment on the side away from the second radiating segment. The second antenna radiator has a second feed point electrically connected to the second feed and a first ground point spaced apart from the second feed point and electrically connected to the reference ground. The operating frequency band of the second antenna unit is higher than 1 GHz.

9. The electronic device according to claim 8, characterized in that, A first coupling gap is formed between the second antenna radiator and the first free end. The first grounding point is located at the end of the second antenna radiator away from the first radiating segment. The first antenna radiator also has a second electrical connection point located in the first radiating segment and spaced apart from the first free end. The first antenna unit also includes a second switching circuit. One end of the second switching circuit is electrically connected to the second electrical connection point, and the other end is electrically connected to the reference ground. Wherein, the second antenna radiator and the first radiating segment between the first free end and the second electrical connection point generate a third resonant mode supporting a third frequency band and a fourth resonant mode supporting a fourth frequency band under the excitation of the second feed source, wherein at least one of the third frequency band and the fourth frequency band is higher than 1 GHz.

10. The electronic device according to claim 9, characterized in that, The third resonant mode includes a 1 / 4 wavelength mode generated by the second antenna radiator and a unidirectional current mode generated by the first radiating segment between the first free end and the second electrical connection point; the fourth resonant mode includes a 1 / 4 wavelength mode generated by the second antenna radiator and a reverse current mode generated by the first radiating segment between the first free end and the second electrical connection point, wherein the third frequency band is lower than the fourth frequency band.

11. The electronic device according to claim 9, characterized in that, The first radiating segment includes a first sub-radiating segment that is bent and connected to the second radiating segment and a second sub-radiating segment located at the end of the first sub-radiating segment away from the second radiating segment. A second coupling gap is formed between the second sub-radiating segment and the first sub-radiating segment. The second electrical connection point is located at the end of the second sub-radiating segment closer to the first radiating segment.

12. The electronic device according to claim 11, characterized in that, The grounding lead, the second radiating segment between the first electrical connection point and the bend connection point, and the first sub-radiating segment generate the first resonant mode under the excitation of the first feed source, and the second sub-radiating segment generate the fifth resonant mode under the excitation of the first feed source, the fifth resonant mode being used to support the fifth frequency band.

13. The electronic device according to claim 8, characterized in that, The electronic device further includes a USB interface, at least a portion of the second antenna radiator is disposed around the USB interface, and / or at least a portion of the first radiating segment is disposed around the USB interface.

14. The electronic device according to any one of claims 1 to 4, 9 to 13, characterized in that, The first antenna element further includes a parasitic stub spaced at a distance from the first radiation segment on the side of the second radiation segment. One end of the parasitic stub forms a third coupling gap with the second free end, and the other end has a second grounding point electrically connected to the reference ground. The parasitic stub generates a sixth resonant mode supporting the sixth frequency band under the excitation of the first feed source.

15. The electronic device according to any one of claims 1 to 4, 9 to 13, characterized in that, The grounding lead and the second radiating segment between the first electrical connection point and the second free end generate a seventh resonant mode supporting the seventh frequency band under the excitation of the first feed source.

16. The electronic device according to any one of claims 1 to 4, 9 to 13, characterized in that, The electronic device also includes a frame that encloses a receiving space, in which the reference ground, the first feed source and the grounding lead are located, and the first antenna radiator is located on the frame.

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