Electronic device

Abstract

The application provides an electronic device, comprising a frame, a first antenna unit and a second antenna unit, the first antenna unit comprises a first feed source, a first antenna radiator and a first switch tuning circuit, the first antenna radiator is arranged in a first area of the first side frame, and the first antenna radiator supports a first frequency band and a second frequency band located in a medium frequency band through switching; the second antenna unit comprises a second feed source, a first radiation branch and a first parasitic branch, at least part of the first radiation branch is arranged in the first area and located on one side of the top frame away from the first antenna radiator, the first parasitic branch is located on a side of the first radiation branch away from the first antenna radiator and outside the first area, and the first radiation branch and the first parasitic branch support a third frequency band and a fourth frequency band located in a high frequency band or a super high frequency band. The electronic device provided by the application can improve communication efficiency and optimize antenna layout.

Description

Technical Field

[0001] This application relates to the field of electronic technology, specifically to an electronic device. Background Technology

[0002] In related technologies, the antenna design of electronic devices is difficult to guarantee good communication efficiency in multiple frequency bands, and the antenna layout cannot effectively utilize the "golden area" of the antenna layout. Summary of the Invention

[0003] This application provides an electronic device that can improve communication efficiency and optimize antenna layout.

[0004] Specifically, this application provides an electronic device, including:

[0005] The border includes a top border, a first side border, a bottom border, and a second side border that are connected end to end. The first side border includes a first region, which is adjacent to the top border and spaced apart from the bottom border.

[0006] A first antenna element includes a first feed, a first antenna radiator, and a first switching tuning circuit. The first antenna radiator is located in the first region and includes a first ground terminal, a first free terminal, a first feed point, and a first tuning point. The first ground terminal is grounded, the first feed point is electrically connected to the first feed, and the first tuning point is electrically connected to the first switching tuning circuit. Under the action of the first feed and the first switching tuning circuit, the first antenna radiator switches to generate a first resonant mode supporting a first frequency band and a second resonant mode supporting a second frequency band. Both the first frequency band and the second frequency band are located in the intermediate frequency band.

[0007] The second antenna element includes a second feed and a second antenna radiator. The second antenna radiator includes a first radiating stub and a first parasitic stub spaced apart. At least a portion of the first radiating stub is located in the first region and on the side of the first antenna radiator away from the top frame. The first radiating stub includes a second grounding terminal, a second free terminal, and a second feed point. The second grounding terminal is grounded, and the second feed point is electrically connected to the second feed. The first parasitic stub is located in the first side frame and on the side of the first radiating stub away from the first antenna radiator. The first parasitic stub is located outside the first region. The first parasitic stub includes a third free terminal and a third grounding terminal. A first coupling gap is formed between the third free terminal and the second free terminal. The third grounding terminal is grounded. Under the excitation of the second feed, the first radiating stub and the first parasitic stub generate a third resonant mode supporting a third frequency band and a fourth resonant mode supporting a fourth frequency band. The third frequency band is located in the high frequency band or ultra-high frequency band, and the fourth frequency band is located in the high frequency band or ultra-high frequency band.

[0008] The first region of the first side frame in an electronic device has the characteristics of being difficult to hold in a vertical screen usage scenario, having low line loss, and contributing a large ground resonant current. It can be considered as the "golden region" for antenna layout. Therefore, this application places the first antenna radiator in the first region of the first side frame, places the first radiating branch of the second antenna radiator in the first region and on the side of the first antenna radiator away from the top frame, places the first parasitic branch in the first side frame and on the side of the first radiating branch away from the first antenna radiator, and places the first parasitic branch outside the first region. In this way, the position design of the second feed point and the first coupling gap of the second antenna radiator can improve its anti-grip performance, and the "golden region" of the first side frame is effectively used to lay out the first antenna radiator, thereby optimizing the layout of the antenna unit of the electronic device. Furthermore, by designing a first switching tuning circuit, the first antenna radiator can switch between supporting two frequency bands, namely the first and second frequency bands, located in the mid-frequency band, under the action of the first feed and the first switching tuning circuit. Meanwhile, the second antenna radiator, including the first radiating stub and the first parasitic stub, simultaneously supports two frequency bands, namely the third and fourth frequency bands, located in the high-frequency and / or ultra-high-frequency bands, under the excitation of the second feed. In this way, by separately arranging the first antenna radiator supporting the mid-frequency band and the second antenna radiator supporting the high-frequency and / or ultra-high-frequency bands in the "golden area", the efficiency of the first antenna radiator supporting the first and second frequency bands and the second antenna radiator supporting the third and fourth frequency bands can be improved. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

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

[0011] Figure 2 for Figure 1 The electronic device shown is a schematic diagram of a structure including a first antenna unit and a second antenna unit.

[0012] Figure 3 for Figure 1 The electronic device shown includes another structural schematic diagram of a first antenna unit and a second antenna unit;

[0013] Figure 4 for Figure 3 The schematic diagram of the structure of the first antenna unit of the electronic device shown includes two capacitive sub-tuning circuits;

[0014] Figure 5 for Figure 3 The schematic diagram of the structure of the first antenna unit of the electronic device shown includes two inductive sub-tuning circuits;

[0015] Figure 6 for Figure 5 The diagram shows the distribution of the first resonant current in the electronic device shown.

[0016] Figure 7 for Figure 5 The diagram shows the distribution of the second resonant current in the electronic device shown.

[0017] Figure 8 for Figure 5 The diagram shows the distribution of the third resonant current in the electronic device shown.

[0018] Figure 9 for Figure 3 The diagram shows the distribution of the fourth and fifth resonant currents in the electronic device.

[0019] Figure 10 for Figure 3 A schematic diagram of the structure of the electronic device shown, in which the first antenna radiator, the first radiating branch, and the first parasitic branch are arranged in sequence;

[0020] Figure 11 for Figure 1 The schematic diagram of the electronic device shown also includes a third antenna unit;

[0021] Figure 12 for Figure 11 The diagram shows the distribution of the sixth, seventh, and eighth resonant currents in the electronic device.

[0022] Figure 13 for Figure 12The third antenna unit of the electronic device also includes a schematic diagram of the structure of the first matching circuit;

[0023] Figure 14 for Figure 13 A schematic diagram of a structure for the third antenna unit of an electronic device, which also includes a second switching tuning circuit;

[0024] Figure 15 for Figure 13 The third antenna unit of the electronic device also includes another structural schematic diagram of the second switching tuning circuit;

[0025] Figure 16 for Figure 15 A schematic diagram of the structure of the third antenna unit of an electronic device, which includes two capacitive sub-tuning circuits;

[0026] Figure 17 for Figure 16 A schematic diagram of an electronic device with a ninth resonant current distributed thereon;

[0027] Figure 18 for Figure 16 A schematic diagram of an electronic device with a tenth resonant current distributed thereon;

[0028] Figure 19 for Figure 15 The electronic device shown also includes a structural diagram of a fourth antenna unit;

[0029] Figure 20 for Figure 19 The diagram shows the structure of the fourth antenna unit of the electronic device, including the second matching circuit.

[0030] Figure 21 for Figure 19 The diagram shows the structure of the fourth antenna unit of the electronic device, including the grounding component.

[0031] Figure 22 for Figure 19 The electronic device shown also includes a schematic diagram of the camera module.

[0032] Figure 23 for Figure 22 The electronic device shown also includes a structural diagram of a fifth antenna unit, a sixth antenna unit, a seventh antenna unit, and an eighth antenna unit;

[0033] Figure 24 Efficiency curves for supporting the B3 band with the third antenna element;

[0034] Figure 25 Efficiency curves for supporting the B1 band with the third antenna element;

[0035] Figure 26Efficiency curves for the first antenna element supporting the B3 band;

[0036] Figure 27 Efficiency curves for the first antenna element supporting the B1 band;

[0037] Figure 28 Efficiency curves for the second antenna unit supporting the B41 / N41 frequency band;

[0038] Figure 29 Efficiency curves for supporting the 2.4G WIFI band for the fourth antenna unit;

[0039] Figure 30 A comparison of the efficiency of the third antenna unit in landscape and free-hold scenarios when the opening of the third antenna radiator faces upwards.

[0040] Figure 31 This is a comparison chart showing the efficiency of the third antenna unit of an electronic device in landscape and free-hold scenarios when the opening of the third antenna radiator faces downwards.

[0041] Figure 32 Efficiency curves of the first antenna unit of the electronic device in landscape holding and free holding scenarios;

[0042] Figure 33 The efficiency comparison chart shows the second antenna unit supporting both mid-frequency and high-frequency bands simultaneously, and the second antenna unit supporting only the high-frequency band.

[0043] Figure 34 Isolation curves when the third antenna unit supports the B41 / N41 band and the fourth antenna unit supports the WIFI 2.4G band;

[0044] Figure 35 Efficiency curves for the fourth antenna element when grounded in different ways. Detailed Implementation

[0045] The technical solutions provided in this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the embodiments described in this application are only a part of the embodiments, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort are within the protection scope of this application.

[0046] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0047] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, in the specification and claims of this application, are intended to cover non-exclusive inclusion. For example, an assembly or device comprising one or more components is not limited to the one or more components listed, but may optionally include one or more components not listed but inherent to the exemplified product, or one or more components that it should have based on the described function. Furthermore, the terms "end" and "point" in the specification and claims of this application may refer to a small segment of the antenna radiator relative to the entire antenna radiator; that is, "end" should not be narrowly interpreted as the end point, and "point" should not be narrowly interpreted as a single point.

[0048] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of this application. The electronic device 100 can be a mobile phone, tablet, or other device with wireless communication capabilities. This embodiment of the application takes a mobile phone as an example. The electronic device 100 includes a frame 10, a first antenna unit 40, and a second antenna unit 50. Of course, the electronic device 100 may also include a display screen, a battery 20, a motherboard 30, a camera module 11, and other sub-circuit boards, etc.

[0049] The frame 10 can be a metal frame or a non-metal frame. For example, the material of the frame 10 can be one of aluminum alloy, titanium alloy, stainless steel, plastic, glass, etc. The shape of the frame 10 includes, but is not limited to, a roughly rectangular, square, circular, or elliptical shape. In the following embodiments, the frame 10 is roughly rectangular as an example.

[0050] The frame 10 includes a top frame 101, a first side frame 102, a bottom frame 103, and a second side frame 104 connected end to end. The top frame 101 and the bottom frame 103 are arranged opposite each other along the length direction of the electronic device 100. The first side frame 102 and the second side frame 104 are arranged opposite each other along the width direction of the electronic device 100. In this context, the top border 101 can be understood as the portion of the border 10 located relatively far from the user when the user uses the electronic device 100 in portrait mode; the bottom border 103 can be understood as the portion of the border 10 located relatively close to the user when the user uses the electronic device 100 in portrait mode; the first side border 102 can be understood as the portion of the border 10 located on the user's left side when the user uses the electronic device 100 in portrait mode, and the second side border 104 can be understood as the portion of the border 10 located on the user's right side when the user uses the electronic device 100 in portrait mode; or, the first side border 102 can be understood as the portion of the border 10 located on the user's right side when the user uses the electronic device 100 in portrait mode, and the second side border 104 can be understood as the portion of the border 10 located on the user's left side when the user uses the electronic device 100 in portrait mode. In the following embodiments, unless otherwise specified, the first side border 102 is exemplified as the portion of the border 10 located on the user's left side when the user uses the electronic device 100 in portrait mode, and the second side border 104 is exemplified as the portion of the border 10 located on the user's right side when the user uses the electronic device 100 in portrait mode.

[0051] The first side frame 102 includes a first region Z1. The first region Z1 is adjacent to the top frame 101 and spaced apart from the bottom frame 103.

[0052] The battery 20 may be, but is not limited to, one of the following: nickel-cadmium battery, nickel-metal hydride battery, lithium-ion battery, lithium polymer battery, and lithium iron phosphate battery. The battery 20 is disposed within the frame 10. The battery 20 is positioned relatively close to the bottom frame 103 and relatively far from the top frame 101 within the frame 10.

[0053] The motherboard 30, when divided by the number of layers of its circuit design, can be a single-sided circuit board, a double-sided circuit board, or a multi-layer circuit board. The shape of the motherboard 30 includes, but is not limited to, a rectangle, a square, a circle, and an ellipse. In the following embodiments, a rectangular motherboard 30 is used as an example. The motherboard 30 is disposed within the frame 10 and located on the side of the battery 20 opposite to the bottom frame 103. In other words, the motherboard 30 is positioned relatively close to the top frame 101 and relatively far from the bottom frame 103 within the frame 10. The motherboard 30 includes an RF chip and a ground plane. In one possible embodiment, the orthographic projection of the motherboard 30 onto the first side frame 102 forms a first region Z1. It is understood that the first region Z1 is the portion of the first side frame 102 corresponding to the motherboard 30. In the following embodiments, for ease of description, the region formed by the orthographic projection of the battery 20 onto the first side frame 102 is defined as a third region. It is understood that the third region is another portion of the first side frame 102 corresponding to the battery 20.

[0054] Electronic device 100 has a reference ground. The reference ground refers to a portion of electronic device 100 that is considered conductive ground and is not affected by any grounding configuration. The potential of the reference ground is conventionally zero. For example, the reference ground may include the ground plane of the motherboard 30, the ground plane of the sub-board, the metal components of the mid-frame, and conductive components electrically connected to one or more of the ground planes of the motherboard 30, the sub-board, and the metal components of the mid-frame.

[0055] Please refer to Figure 1 and Figure 2 In this application, the first antenna element 40 is an antenna element that supports the intermediate frequency band. The first antenna element 40 includes a first feed 401, a first antenna radiator 402, and a first switching tuning circuit 403.

[0056] The first feed source 401 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the first feed source 401 is located on the motherboard 30. The first feed source 401 can be understood as a port located on the motherboard 30 and relatively close to the first antenna radiator 402. The first feed source 401 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the first antenna radiator 402 to generate a corresponding resonant current.

[0057] The first antenna radiator 402 is a conductor with specific dimensions. The material of the first antenna radiator 402 includes, but is not limited to, conductive materials such as metals and alloys. The shape of the first antenna radiator 402 includes, but is not limited to, strip-shaped, sheet-shaped, rod-shaped, coated, and thin-film shapes. In this embodiment, the shape of the first antenna radiator 402 is approximately strip-shaped. The extension method of the first antenna radiator 402 includes, but is not limited to, straight extension, curved extension, and bent extension. The width of the first antenna radiator 402 can be uniform, gradually changing, or abrupt. The first antenna radiator 402 can be an internal antenna or an external antenna. When the first antenna radiator 402 is an internal antenna, its form includes, but is not limited to, flexible circuit board antennas formed on flexible printed circuit boards (FPCs), laser-directly formed antennas (LDS), printed-directly formed antennas (PDS), and conductive sheet antennas (e.g., metal bracket antennas). When the first antenna radiator 402 is an external antenna, the form of the antenna radiator includes, but is not limited to, a metal frame antenna, an FPC antenna disposed on the outer surface of a non-conductive frame, an LDS antenna, or a PDS antenna.

[0058] The first antenna radiator 402 is disposed in the first region Z1. The first antenna radiator 402 may be disposed on the inner surface of the first region Z1, or it may be integrated into the first region Z1, or it may be disposed on the outer surface of the first region Z1. In one possible embodiment, the first side frame 102 may be made of conductive materials such as metal or alloy, and a portion of the first side frame 102 in the first region Z1 may be reused as the first antenna radiator 402.

[0059] The first antenna radiator 402 includes a first ground terminal A, a first free terminal B, a first feed point C, and a first tuning point D. Here, "ground terminal" can be understood as the end, port, or location of the antenna radiator electrically connected to the reference ground. "Free terminal" can be understood as the end of the antenna radiator that is not electrically connected to a conductive component, or has a gap between it and a conductive component, or is isolated from a conductive component by insulating material. "Feed point" can be understood as the end, port, or location of the antenna radiator electrically connected to the corresponding ground feed source. "Tuning point" can be understood as the end, port, or location of the antenna radiator electrically connected to the corresponding ground tuning circuit. Similar naming conventions in the following embodiments have similar meanings and will not be repeated hereafter. The length of the first antenna radiator 402 can be understood as the length between the first ground terminal A and the first free terminal B. The first feed point C can be located between the first ground terminal A and the first free terminal B, or the first feed point C can be located at the first free terminal B. The first tuning point D can be located between the first grounding terminal A and the first free terminal B, or the first tuning point D can be located at the first free terminal B, or the first tuning point D can be located at the first grounding terminal A. The first tuning point D and the first feed point C may or may not coincide.

[0060] The first grounding terminal A is grounded. In one possible embodiment, the first grounding terminal A can be grounded by electrically connecting the first grounding terminal A to the reference ground through a physical rib. In another possible embodiment, the first grounding terminal A can be grounded by electrically connecting the first grounding terminal A to the reference ground through a conductive spring. Here, electrically connecting the reference ground through a physical rib can be understood as the first antenna radiator 402 being directly grounded, and electrically connecting the reference ground through a conductive spring can be understood as the first antenna radiator 402 being indirectly grounded.

[0061] The first feed point C is electrically connected to the first feed source 401. The first feed point C and the first feed source 401 can be directly or indirectly connected. For example, the first feed point C and the first feed source 401 can be directly soldered, or they can be electrically connected through electrical connectors such as coaxial cables, microstrip lines, conductive springs, conductive adhesives, and circuit boards.

[0062] The first tuning point D is electrically connected to the first switching tuning circuit 403. The first tuning point D and the first switching tuning circuit 403 can be directly or indirectly connected. For example, the first tuning point D and the first switching tuning circuit 403 can be directly soldered, or electrically connected through electrical connectors such as coaxial cables, microstrip lines, conductive springs, conductive adhesive, and circuit boards.

[0063] In one possible embodiment, such as Figure 2 As shown, the first tuning point D and the first feed point C can coincide, and the first switching tuning circuit 403 can be connected in series between the first feed source 401 and the first antenna radiator 402. In another possible embodiment, as... Figure 3 As shown, the first tuning point D and the first feed point C may not coincide. One end of the first switching tuning circuit 403 is electrically connected to the first tuning point D, and the other end of the first switching tuning circuit 403 is grounded. At this time, the grounding loop formed by the first tuning point D, the first switching tuning circuit 403, and the reference ground is connected in parallel with the grounding loop formed by the first grounding terminal A and the reference ground.

[0064] The first antenna radiator 402, under the action of the first feed 401 and the first switching tuning circuit 403, switches to generate a first resonant mode supporting a first frequency band and a second resonant mode supporting a second frequency band. It is understood that the first antenna radiator 402 does not simultaneously support the first and second frequency bands, but switches between supporting the first and second frequency bands. In this application, the first antenna radiator 402 does not support high-frequency and ultra-high-frequency bands. In one possible embodiment, the first antenna radiator 402 supports one of the first and second frequency bands under the excitation of the first feed 401, and through the tuning action of the first switching tuning circuit 403, the first antenna radiator 402 can switch to support the other of the first and second frequency bands under the excitation of the first feed 401. Here, the first and second frequency bands can be understood as the stationary frequency band of the first antenna radiator 402.

[0065] Both the first and second frequency bands are located in the mid-frequency band. The mid-frequency band ranges from 1710MHz to 2170MHz. The mid-frequency band includes the B1 / N1 band (uplink 1920MHz~1980MHz; downlink 2110MHz~2170MHz), the B2 / N2 band (uplink 1850MHz~1910MHz; downlink 1930MHz~1990MHz), the B3 / N3 band (uplink 1710MHz~1785MHz; downlink 1805MHz~1880MHz), the B4 band (uplink 1710MHz~1755MHz; downlink 2110MHz~2155MHz), the B34 / N34 band (2010MHz~2025MHz), and the B39 / N39 band (1880MHz~1920MHz). The first frequency band can be one of the following: B1, B2, B3, B4, B34, and B39. The second frequency band can be one of the following: B1, B2, B3, B4, B34, and B39, which is different from the first frequency band. Alternatively, the first frequency band can be one of the following: N1, N2, N3, N34, and N39, and the second frequency band can be one of the following: N1, N2, N3, N34, and N39, which is different from the first frequency band.

[0066] Please refer to Figures 1 to 3In this application, the second antenna element 50 is an antenna element that supports high-frequency bands and / or ultra-high-frequency bands. The second antenna element 50 includes a second feed 501 and a second antenna radiator 502. The second antenna radiator 502 includes a first radiating stub 520 and a first parasitic stub 521 arranged at intervals.

[0067] The second feed source 501 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the second feed source 501 is located on the motherboard 30. The second feed source 501 can be understood as a port located on the motherboard 30 and relatively close to the second antenna radiator 502. The second feed source 501 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the second antenna radiator 502 to generate a corresponding resonant current.

[0068] The second antenna radiator 502 can be either an internal or external antenna. When the second antenna radiator 502 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the second antenna radiator 502 is an external antenna, its form includes, but is not limited to, an antenna with a metal frame 10, an FPC antenna, an LDS antenna, or a PDS antenna disposed on the outer surface of the non-conductive frame 10.

[0069] The first radiating stub 520 is a conductor with a specific size. The material of the first radiating stub 520 includes, but is not limited to, conductive materials such as metals and alloys. The shape of the first radiating stub 520 includes, but is not limited to, strip-shaped, sheet-shaped, rod-shaped, coated, and thin-film shapes. In this embodiment, the shape of the first radiating stub 520 is generally strip-shaped. The extension method of the first radiating stub 520 includes, but is not limited to, straight extension, curved extension, and bent extension. The width of the first radiating stub 520 can be uniform, gradually changing, or abruptly changing.

[0070] The first parasitic segment 521 is a conductor with a specific size. The material of the first parasitic segment 521 includes, but is not limited to, conductive materials such as metals and alloys. The shape of the first parasitic segment 521 includes, but is not limited to, strip-shaped, sheet-shaped, rod-shaped, coated, and film-shaped. In this embodiment, the shape of the first parasitic segment 521 is generally strip-shaped. The extension method of the first parasitic segment 521 includes, but is not limited to, straight extension, curved extension, and bent extension. The width of the first parasitic segment 521 can be uniform, gradually changing, or abruptly changing.

[0071] At least a portion of the first radiating branch 520 is disposed in the first region Z1 and located on the side of the first antenna radiator 402 opposite to the top frame 101. It is understood that the first radiating branch 520 is further away from the top frame 101 and closer to the bottom frame 103 relative to the first antenna radiator 402. All of the first radiating branches 520 may be disposed in the first region Z1; or, a portion of the first radiating branches 520 may be disposed in the first region Z1, and another portion of the first radiating branches 520 may be disposed outside the first region Z1. The first radiating branch 520 being disposed in the first region Z1 can be located on the inner surface of the first region Z1, or the first radiating branch 520 can be integrated into the first region Z1, or the first radiating branch 520 can be located on the outer surface of the first region Z1. In one possible embodiment, the material of the first side frame 102 can be a conductive material such as metal or alloy, and another portion of the first side frame 102 in the first region Z1 can be reused as the first radiating branch 520.

[0072] The first radiating stub 520 includes a second grounding terminal E, a second free terminal F, and a second feed point G. The length of the first radiating stub 520 can be understood as the length between the second grounding terminal E and the second free terminal F. The second feed point G can be located between the second grounding terminal E and the second free terminal F, or the second feed point G can be located at the second free terminal F.

[0073] The second grounding terminal E is grounded. In one possible embodiment, the second grounding terminal E can be electrically connected to the reference ground via a physical connector. In another possible embodiment, the second grounding terminal E can be electrically connected to the reference ground via a conductive spring.

[0074] The second feed point G is electrically connected to the second feed source 501. The second feed point G and the second feed source 501 can be directly or indirectly connected. For example, the second feed point G and the second feed source 501 can be directly soldered, or they can be electrically connected through electrical connectors such as coaxial cables, microstrip lines, conductive springs, conductive adhesives, and circuit boards.

[0075] The first parasitic branch 521 is disposed on the first side frame 102 and located on the side of the first radiating branch 520 opposite to the first antenna radiator 402. It is understood that the first parasitic branch 521 is further away from the top frame 101 and closer to the bottom frame 103 than the first radiating branch 520. In other words, the first antenna radiator 402, the first radiating branch 520, and the first parasitic branch 521 are arranged sequentially on the first side frame 102. The first parasitic branch 521 is located outside the first region Z1. In this embodiment, the first parasitic branch 521 may be disposed within the third region formed by the orthographic projection of the battery 20 onto the first side frame 102. The first parasitic branch 521 may be disposed on the inner surface of the first side frame 102, or integrated into the first side frame 102, or disposed on the outer surface of the first side frame 102. In one possible embodiment, the first side frame 102 may be made of conductive materials such as metal or alloy, and a portion of the first side frame 102 in the third region may be reused as a first parasitic branch 521.

[0076] The first parasitic stub 521 includes a third free end H and a third grounding end J. The length of the first parasitic stub 521 can be understood as the length between the third grounding end J and the third free end H. A first coupling gap is formed between the third free end H and the second free end F. It can be understood that the first parasitic stub 521 and the first radiating stub 520 are coupled through the first coupling gap. In other words, the first parasitic stub 521 and the first radiating stub 520 can achieve the transmission of radiated energy through the first coupling gap. Among them, the coupling between the first parasitic stub 521 and the first radiating stub 520 is mainly electric field coupling. The length of the first coupling gap can be 0.5mm to 3mm. The length of the first coupling gap can be referred to the appendix. Figure 2 Appendix Figure 3 As shown in L1.

[0077] The third grounding terminal J is grounded. In one possible embodiment, the third grounding terminal J can be electrically connected to the reference ground through a physical connector. In another possible embodiment, the third grounding terminal J can be electrically connected to the reference ground through a conductive spring, circuit board, or other electrical connector.

[0078] The first radiating stub 520 and the first parasitic stub 521, under the excitation of the second feed 501, generate a third resonant mode supporting the third frequency band and a fourth resonant mode supporting the fourth frequency band. It is understood that the second antenna radiator 502, under the excitation of the second feed 501, can simultaneously support both the third and fourth frequency bands. One of the third and fourth resonant modes can be a resonant mode dominated by the first radiating stub 520, and the other can be a resonant mode dominated by the first parasitic stub 521. Specifically, the resonant current of the resonant mode dominated by the first radiating stub 520 is mainly distributed in the first radiating stub 520, and the resonant current of the resonant mode dominated by the first parasitic stub 521 is mainly distributed in the first parasitic stub 521. In this application, the second antenna radiator 502 does not support the mid-frequency band.

[0079] The third frequency band is located in the high-frequency or ultra-high-frequency band. The fourth frequency band is located in the high-frequency or ultra-high-frequency band. The high-frequency band ranges from 2300MHz to 2690MHz. The ultra-high-frequency band is greater than 2690MHz. The high-frequency bands include the B40 / N40 band (2300MHz~2400MHz), the B41 / N41 band (2469MHz~2690MHz), the B38 / N38 band (2570MHz~2620MHz), and the B7 / N7 band (uplink 2500MHz~2570MHz; downlink 2620MHz~2690MHz). The ultra-high-frequency bands include the N77 band (3.3GHz~4.2GHz), the N78 band (3.3GHz~3.8GHz), and the N79 band (4.4GHz~5.0GHz). The third frequency band can be one of the B40, B41, B38, and B7 bands, and the fourth frequency band can be one of the B40, B41, B38, and B7 bands that is different from the third frequency band. Alternatively, the third frequency band can be one of the N40, N41, N38, N7, N77, N78, and N79 bands, and the fourth frequency band can be one of the N40, N41, N38, N7, N77, N78, and N79 bands that is different from the third frequency band. In one possible embodiment, one of the third and fourth frequency bands is located in the high-frequency band, and the other of the third and fourth frequency bands is located in the ultra-high-frequency band. In the following embodiments, the third frequency band is N41 and the fourth frequency band is N78 as an example. It can be understood that in the embodiments of this application, the third frequency band is located in the high-frequency band, and the fourth frequency band is located in the ultra-high-frequency band.

[0080] The first region Z1 of the first side frame 102 in the electronic device 100 has the characteristics of being difficult to hold in a vertical screen usage scenario, having low line loss, and contributing a large ground resonant current. It can be considered as the "golden region" for antenna layout. Therefore, this application places the first antenna radiator 402 in the first region Z1 of the first side frame 102, places the first radiating branch 520 of the second antenna radiator 502 in the first region Z1 and is located on the side of the first antenna radiator 402 away from the top frame 101, and places the first parasitic branch 521 in the first side frame 102 and is located on the side of the first radiating branch 520 away from the first antenna radiator 402. The first parasitic branch 521 is located outside the first region Z1. In this way, the position design of the second feed point G and the first coupling gap of the second antenna radiator 502 can improve its anti-grip performance, and the first antenna radiator 402 is effectively arranged in the "golden region" of the first side frame 102, thereby optimizing the layout of the antenna unit of the electronic device 100. Furthermore, by designing the first switching tuning circuit 403, the first antenna radiator 402 can switch between supporting two frequency bands, namely the first and second frequency bands, located in the intermediate frequency band, under the action of the first feed 401 and the first switching tuning circuit 403. Meanwhile, the second antenna radiator 502, including the first radiating stub 520 and the first parasitic stub 521, simultaneously supports two frequency bands, namely the third and fourth frequency bands, located in the high frequency band and / or ultra-high frequency band, under the excitation of the second feed 501. In this way, by separately arranging the first antenna radiator 402 supporting the intermediate frequency band and the second antenna radiator 502 supporting the high frequency band and / or ultra-high frequency band in the "golden area", the efficiency of the first antenna radiator 402 supporting the first and second frequency bands and the second antenna radiator 502 supporting the third and fourth frequency bands can be improved.

[0081] Understandably, the mid-frequency band supported by the first antenna radiator 402 is the main frequency band in the game scene. Therefore, placing the first antenna radiator 402 in the first region Z1 can ensure the communication performance of the electronic device 100 in the game scene. Under the action of the first switching tuning circuit 403, the first antenna radiator 402 switches to support the first frequency band and the second frequency band, which can make the efficiency of the first antenna radiator 402 in supporting both the first frequency band and the second frequency band relatively high. The second antenna radiator 502 is positioned on the side of the first antenna radiator 402 away from the top frame 101. This allows the first antenna radiator 402, which supports the intermediate frequency band, to be positioned in the "golden area" of the first side frame 102. At least a portion of the second antenna radiator 502 is also positioned in the "golden area" of the first side frame 102. Meanwhile, the second free end F of the first radiating branch 520 and the third free end H of the first parasitic branch 521 in the second antenna radiator 502 can be moved away from the top frame 101. That is, the electric field strength points of the third resonant mode and the fourth resonant mode can be moved away from the hand grip area when using the electronic device 100 in landscape mode. This can improve the anti-hand grip performance of the second antenna radiator 502. By separating the first antenna radiator 402, which supports the intermediate frequency band, and the second antenna radiator 502, which supports the high frequency band and / or ultra-high frequency band, the first antenna radiator 402 can function solely as an antenna radiator supporting the intermediate frequency band without needing to support the high frequency band and / or ultra-high frequency band. Similarly, the second antenna radiator 502 can function solely as an antenna radiator supporting the high frequency band and / or ultra-high frequency band without needing to support the intermediate frequency band. As a result, the overall efficiency of the first antenna unit 40 and the second antenna unit 50 is higher, which can improve the communication performance of the electronic device 100 in multiple frequency bands and scenarios.

[0082] Furthermore, under the action of the first feed 401 and the first switching tuning circuit 403, the first antenna radiator 402 also switches to generate a fifth resonant mode supporting the fifth frequency band. It is understood that the first antenna radiator 402 does not simultaneously support the first, second, and fifth frequency bands, but switches between supporting the first, second, and fifth frequency bands. In this embodiment, the first antenna radiator 402, under the excitation of the first feed 401, only supports one of the first, second, and fifth frequency bands. Through the tuning action of the first switching tuning circuit 403, the first antenna radiator 402, under the excitation of the first feed 401, can switch to support any of the remaining two of the first, second, and fifth frequency bands.

[0083] The fifth frequency band is located in the mid-frequency band. The fifth frequency band can be one of the following: B1, B2, B3, B4, B34, and B39, which is different from the first and second frequency bands. Alternatively, the fifth frequency band can also be one of the following: N1, N2, N3, N34, and N39, which is different from the first and second frequency bands.

[0084] Optionally, one of the first, second, and fifth frequency bands is designated as the B3 frequency band, another of the first, second, and fifth frequency bands is designated as the B39 frequency band, and yet another of the first, second, and fifth frequency bands is designated as the B1 frequency band.

[0085] In one possible embodiment, the first frequency band can be the B1 band, the second frequency band can be the B39 band, and the fifth frequency band can be the B3 band. The first frequency band can be a resident frequency band. The second and fifth frequency bands are switching frequency bands under the tuning action of the first switching tuning circuit 403.

[0086] In another possible embodiment, the first frequency band can be the B3 band, the second frequency band can be the B39 band, and the fifth frequency band can be the B1 band. The first frequency band can be a resident frequency band. The second and fifth frequency bands are switching frequency bands under the tuning action of the first switching tuning circuit 403.

[0087] By enabling the first antenna radiator 402 to switch between supporting three frequency bands, the communication scenarios and operating bandwidth of the first antenna radiator 402 can be expanded. Furthermore, the B1, B39, and B3 bands cover the main frequency bands used in gaming scenarios. Therefore, by including the B3 band in one of the first, second, and fifth frequency bands, including the B39 band in another of the first, second, and fifth frequency bands, and including the B1 band in yet another of the first, second, and fifth frequency bands, the first antenna radiator 402 can be used as a gaming antenna, thereby improving the performance of the electronic device 100 in gaming scenarios.

[0088] Optional, please refer to Figure 4 and Figure 5 The first tuning point D does not coincide with the first feed point C. One end of the first switching tuning circuit 403 is electrically connected to the first tuning point D, and the other end is grounded. The first switching tuning circuit 403 includes a first switch 430, a first sub-tuning circuit 431, and a second sub-tuning circuit 432. When the first switch 430 is open, and both the first sub-tuning circuit 431 and the second sub-tuning circuit 432 are open, the first antenna radiator 402 supports the first frequency band. When the first switch 430 is closed, and the first sub-tuning circuit 431 is closed, the first antenna radiator 402 supports the second frequency band. When the first switch 430 is closed, and the second sub-tuning circuit 432 is closed, the first antenna radiator 402 supports the fifth frequency band.

[0089] Understandably, in this embodiment, the grounding loop formed by the first tuning point D, the first switch tuning circuit 403, and the reference ground is connected in parallel with the grounding loop formed by the first grounding terminal A and the reference ground. The first switch 430 can be a single-pole single-throw switch, a single-pole multi-throw switch, or a multi-pole single-throw switch. This embodiment uses a single-pole single-throw switch as an example. The first sub-tuning circuit 431 and the second sub-tuning circuit 432 can both be capacitive, or both can be inductive. When both the first sub-tuning circuit 431 and the second sub-tuning circuit 432 are capacitive, their capacitances are different. When both the first sub-tuning circuit 431 and the second sub-tuning circuit 432 are inductive, their inductances are different.

[0090] In one possible embodiment, such as Figure 4 As shown, the first frequency band is the B1 band, and it is a resident frequency band. Both the first sub-tuning circuit 431 and the second sub-tuning circuit 432 are capacitive, with the capacitance of the first sub-tuning circuit 431 being smaller than that of the second sub-tuning circuit 432. When the first switch 430 is disconnected from both the first sub-tuning circuit 431 and the second sub-tuning circuit 432, the first antenna radiator 402 can support the first frequency band. When the first switch 430 is connected to the first sub-tuning circuit 431 with the smaller capacitance, the first antenna radiator 402 switches to support the second frequency band, which is the B39 band. When the first switch 430 is connected to the second sub-tuning circuit 432 with the larger capacitance, the first antenna radiator 402 switches to support the fifth frequency band, which is the B3 band.

[0091] In another possible embodiment, such as Figure 5 As shown, the first frequency band is the B3 band, and it is a resident frequency band. Both the first sub-tuning circuit 431 and the second sub-tuning circuit 432 are inductive, with the inductance of the first sub-tuning circuit 431 being less than that of the second sub-tuning circuit 432. When the first switch 430 is disconnected from both the first sub-tuning circuit 431 and the second sub-tuning circuit 432, the first antenna radiator 402 can support the first frequency band. When the first switch 430 is connected to the first sub-tuning circuit 431 with the smaller inductance, the first antenna radiator 402 switches to support the second frequency band, which is the B39 band. When the first switch 430 is connected to the second sub-tuning circuit 432 with the larger inductance, the first antenna radiator 402 switches to support the fifth frequency band, which is the B1 band.

[0092] By making the first switching tuning circuit 403 include a first switch 430, a first sub-tuning circuit 431, and a second sub-tuning circuit 432, when the first switch 430 is disconnected from both the first sub-tuning circuit 431 and the second sub-tuning circuit 432, the first antenna radiator 402 supports the first frequency band. That is, the first antenna radiator 402 can directly support the first frequency band under the excitation of the first feed 401. This reduces the number of sub-tuning circuits included in the first switching tuning circuit 403, thus reducing the design and layout difficulty of the first switching tuning circuit 403. When the first switch 430 is connected to the first sub-tuning circuit 431, the first antenna radiator 402 supports the second frequency band. When the first switch 430 is connected to the second sub-tuning circuit 432, the first antenna radiator 402 supports the fifth frequency band. This allows the first antenna radiator 402 to switch between supporting the second and fifth frequency bands while ensuring its efficiency in supporting both frequency bands.

[0093] Please refer to Figures 6 to 8 The first feed point C can be located between the first ground terminal A and the first free terminal B. The first tuning point D is located between the first feed point C and the first ground terminal A. The first resonant mode includes a first resonant current generated on the first antenna radiator 402 between the first ground terminal A and the first free terminal B. The second resonant mode includes a second resonant current generated on the first antenna radiator 402 between the first free terminal B and the first tuning point D, and on the first sub-tuning circuit 431. The fifth resonant mode includes a third resonant current generated on the first antenna radiator 402 between the first free terminal B and the first tuning point D, and on the second sub-tuning circuit 432.

[0094] The first feed point C may be relatively close to the first ground terminal A, or the first feed point C may be relatively close to the first free terminal B, or the first feed point C may be located between the first ground terminal A and the first free terminal B. The first tuning point D may be relatively close to the first ground terminal A, or the first tuning point D may be relatively close to the first feed point C, or the first tuning point D may be located between the first ground terminal A and the first feed point C.

[0095] Understandably, the first resonant current of the first resonant mode is distributed from the first ground terminal A to the first free terminal B of the first antenna radiator 402. The distribution of the first resonant current can be referenced in the appendix. Figure 6As shown in Figure I1, the first resonant current forms a strong resonant current point at the first ground terminal A and a strong electric field point at the first free terminal B. The first resonant current exhibits a strong-weak distribution between the first ground terminal A and the first free terminal B. The first resonant mode is a 1 / 4 wavelength mode. In other words, the length of the first antenna radiator 402 can be equal to 1 / 4 wavelength of the first frequency band. The second resonant current of the second resonant mode is distributed from the first free terminal B to the first tuning point D of the first antenna radiator 402, and on the first sub-tuning circuit 431. The distribution of the second resonant current can be referred to the appendix. Figure 7 As shown in Figure I2, the third resonant current of the fifth resonant mode is distributed from the first free end B of the first antenna radiator 402 to the first tuning point D, and on the second sub-tuning circuit 432. The distribution of the third resonant current can be seen in the attached figure. Figure 8 As shown in Figure I3. The resonant current described in this application is an alternating current. The currents shown in the figures are only used to indicate the distribution location of the corresponding resonant current and are not used to indicate the direction of the current.

[0096] like Figure 9 As shown, the second feed point G is located between the second ground terminal E and the second free terminal F. The third resonant mode includes a fourth resonant current generated on the first radiating stub 520 between the second ground terminal E and the second free terminal F. The fourth resonant mode includes a fifth resonant current generated on the first parasitic stub 521 between the third free terminal H and the third ground terminal J.

[0097] The second feed point G can be relatively close to the second grounding terminal E, or the second feed point G can be relatively close to the second free terminal F, or the second feed point G can be located between the second grounding terminal E and the second free terminal F.

[0098] Understandably, the third resonant mode is a resonant mode dominated by the first radiating stub 520, meaning that the third resonant mode primarily generates resonant current in the first radiating stub 520. The fourth resonant current of the third resonant mode is distributed from the second ground terminal E to the second free terminal F of the first radiating stub 520. The distribution of the fourth resonant current can be seen in the appendix. Figure 9 As shown in Figure I4, the fourth resonant current forms a strong resonant current point at the second grounding terminal E and a strong electric field point at the second free terminal F. The fourth resonant current exhibits a strong-weak distribution between the second grounding terminal E and the second free terminal F. The third resonant mode is a 1 / 4 wavelength mode. In other words, the length of the first radiating stub 520 can be equal to 1 / 4 wavelength of the third frequency band.

[0099] The fourth resonant mode is dominated by the first parasitic stub 521, meaning that the resonant current in the fourth resonant mode is mainly generated in the first parasitic stub 521. The fifth resonant current of the fourth resonant mode is distributed from the third ground terminal J to the third free terminal H of the first parasitic stub 521. The distribution of the fifth resonant current can be referred to the appendix. Figure 9 As shown in Figure I5, the fifth resonant current forms a strong resonant current point at the third ground terminal J and a strong electric field point at the third free terminal H. The fifth resonant current exhibits a strong-weak distribution between the third ground terminal J and the third free terminal H. The fifth resonant mode is a 1 / 4 wavelength mode. In other words, the length of the first parasitic stub 521 can be equal to 1 / 4 wavelength of the fourth frequency band.

[0100] In one possible embodiment, such as Figure 10 As shown, the first free end B is located on the side of the first ground end A that is away from the top frame 101. The second ground end E, the second feed point G, the second free end F, the third free end H, and the third ground end J are arranged in sequence. It can be understood that the opening of the first antenna radiator 402 faces downwards. The first ground end A, the first free end B, the second ground end E, the second feed point G, the second free end F, the third free end H, and the third ground end J are arranged in sequence. In this embodiment, an isolation gap is formed between the first antenna radiator 402 and the first radiating branch 520. The length of the isolation gap can be 0.5mm to 3mm. The length of the isolation gap can be referred to in the attached diagram. Figure 10 As shown in L2, the isolation gap between the first antenna radiator 402 and the first radiating branch 520 can be understood as the opening of the first antenna radiator 402.

[0101] By positioning the first free end B on the side of the first ground end A away from the top frame 101, the first free end B can be avoided when the electronic device 100 is used horizontally, thereby reducing the efficiency drop of the first antenna radiator 402 in the horizontal hand-held scenario and improving the mid-frequency communication performance of the electronic device 100 in the horizontal hand-held scenario.

[0102] like Figure 11 As shown, the second side frame 104 includes a second region Z2. The orthographic projection of the second region Z2 onto the first side frame 102 coincides with the first region Z1. It can be understood that the second region Z2 is adjacent to the top frame 101 and spaced apart from the bottom frame 103. In this application, the top frame 101, the first region Z1, and the second region Z2 can also be understood as the upper half of the electronic device 100.

[0103] In one possible embodiment, the orthographic projection of the motherboard 30 onto the second side frame 104 forms a second region Z2. It is understood that the second region Z2 is the portion of the second side frame 104 corresponding to the motherboard 30. The electronic device 100 also includes a third antenna unit 60. The third antenna unit 60 includes a third feed 601 and a third antenna radiator 602. The third antenna radiator 602 is disposed in the second region Z2. The third antenna radiator 602 is electrically connected to the third feed 601 and, under the excitation of the third feed 601, generates a sixth resonant mode supporting a first frequency band and a seventh resonant mode supporting a third frequency band.

[0104] In this application, the third antenna element 60 is an antenna element that can support mid-frequency, high-frequency, and / or ultra-high-frequency bands. The third feed source 601 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the third feed source 601 is located on the motherboard 30 as an example. The third feed source 601 can be understood as a port located on the motherboard 30 and relatively close to the third antenna radiator 602. The third feed source 601 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the third antenna radiator 602 to generate a corresponding resonant current. The third antenna radiator 602 can be an internal antenna or an external antenna. When the third antenna radiator 602 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the third antenna radiator 602 is an external antenna, its form includes, but is not limited to, a metal frame antenna, an FPC antenna located on the outer surface of a non-conductive frame, an LDS antenna, or a PDS antenna.

[0105] The third antenna radiator 602 can be disposed on the inner surface of the second region Z2, integrated into the second region Z2, or disposed on the outer surface of the second region Z2. In one possible embodiment, the second side frame 104 can be made of conductive materials such as metal or alloy, and a portion of the second side frame 104 in the second region Z2 can be reused as the third antenna radiator 602.

[0106] Understandably, the third antenna radiator 602, under the excitation of the third feed 601, can simultaneously support the first frequency band located in the mid-frequency band and the third frequency band located in the high-frequency band.

[0107] In this embodiment, the third antenna radiator 602 is placed in the second region Z2 of the second side frame 104 corresponding to the motherboard 30. Under the excitation of the third feed 601, the third antenna radiator 602 supports the first frequency band. By ensuring the radiation efficiency of at least one of the third antenna radiator 602 and the first antenna radiator 402 that supports the first frequency band, the communication performance under the first frequency band can be guaranteed. Since the mid-frequency band is the main frequency band in the game scene, the game antenna can be laid out in the "golden area". In addition, the third antenna radiator 602 can also support the third frequency band under the excitation of the third feed 601. This reuse of the third antenna radiator 602 is beneficial to the fact that the remaining area of ​​the second region Z2 does not need to be arranged with antenna radiators supporting the mid-frequency and high-frequency bands. It can be used to arrange antenna radiators supporting other frequency bands (e.g., low-frequency band, WIFI band), thereby making the antenna layout scheme of the second region Z2 more optimized and improving the communication performance in various scenarios.

[0108] In one possible embodiment, such as Figure 11 As shown, the third antenna radiator 602 includes a second radiating stub 620 and a second parasitic stub 621 arranged at intervals.

[0109] The second radiating stub 620 is a conductor with specific dimensions. The material of the second radiating stub 620 includes, but is not limited to, conductive materials such as metals and alloys. The shape of the second radiating stub 620 includes, but is not limited to, strips, sheets, rods, coatings, and films. In this embodiment, the shape of the second radiating stub 620 is generally strip-shaped. The extension method of the second radiating stub 620 includes, but is not limited to, straight extension, curved extension, and bent extension. The width of the second radiating stub 620 can be uniform, gradually changing, or abruptly changing.

[0110] The second parasitic branch 621 is a conductor with specific dimensions. The material of the second parasitic branch 621 includes, but is not limited to, conductive materials such as metals and alloys. The shape of the second parasitic branch 621 includes, but is not limited to, strip-shaped, sheet-shaped, rod-shaped, coated, and film-shaped. In this embodiment, the shape of the second parasitic branch 621 is generally strip-shaped. The extension method of the second parasitic branch 621 includes, but is not limited to, straight extension, curved extension, and bent extension. The width of the second parasitic branch 621 can be uniform, gradually changing, or abruptly changing.

[0111] Both the second radial branch 620 and the second parasitic branch 621 are located in the second region Z2. In one possible embodiment, the second parasitic branch 621 is located on the side of the second radial branch 620 facing away from the top frame 101. Of course, in other possible embodiments, the second parasitic branch 621 may also be located on the side of the second radial branch 620 facing the top frame 101. The second radial branch 620 located in the second region Z2 may be located on the inner surface of the second region Z2, or it may be integrated into the second region Z2, or it may be located on the outer surface of the second region Z2. Similarly, the second parasitic branch 621 located in the second region Z2 may be located on the inner surface of the second region Z2, or it may be integrated into the second region Z2, or it may be located on the outer surface of the second region Z2. In one possible embodiment, the second side frame 104 can be made of conductive materials such as metal or alloy. A portion of the second side frame 104 in the second region Z2 can be reused as a second radiating branch 620, and another portion of the second side frame 104 in the second region Z2 can be reused as a second parasitic branch 621.

[0112] Please refer to Figure 11 and Figure 12 The second radiating stub 620 includes a fourth grounding terminal K, a fourth free terminal M, and a third feed point N. The length of the second radiating stub 620 can be understood as the length between the fourth grounding terminal K and the fourth free terminal M. The third feed point N can be located between the fourth grounding terminal K and the fourth free terminal M, or the third feed point N can be located at the fourth free terminal M.

[0113] The fourth grounding terminal K is grounded. In one possible embodiment, the fourth grounding terminal K can be grounded by being electrically connected to the reference ground through a physical connector. In another possible embodiment, the fourth grounding terminal K can be grounded by being electrically connected to the reference ground through a conductive spring.

[0114] The third feed point N is electrically connected to the third feed source 601. The third feed point N and the third feed source 601 can be directly or indirectly connected. For example, the third feed point N and the third feed source 601 can be directly soldered, or they can be electrically connected through electrical connectors such as coaxial cables, microstrip lines, conductive springs, conductive adhesives, and circuit boards.

[0115] The second parasitic stub 621 includes a fifth free end O and a fifth grounding end P. The length of the second parasitic stub 621 can be understood as the length between the fifth grounding end P and the fifth free end O. A second coupling gap is formed between the fifth free end O and the fourth free end M. It can be understood that the second parasitic stub 621 and the second radiating stub 620 are coupled through the second coupling gap. In other words, the second parasitic stub 621 and the second radiating stub 620 can achieve the transmission of radiated energy through the second coupling gap. Among them, the coupling between the second parasitic stub 621 and the second radiating stub 620 is mainly electric field coupling. The length of the second coupling gap can be 0.5mm to 3mm. The length of the second coupling gap can be referred to the appendix. Figure 12 As shown in L3.

[0116] The fifth grounding terminal P is grounded. In one possible embodiment, the fifth grounding terminal P can be electrically connected to the reference ground through a physical connector. In another possible embodiment, the fifth grounding terminal P can be electrically connected to the reference ground through a conductive spring, circuit board, or other electrical connector.

[0117] The second radiating stub 620 and the second parasitic stub 621, under the excitation of the third feed 601, generate a sixth resonant mode, a seventh resonant mode, and an eighth resonant mode supporting the fourth frequency band. Understandably, the third antenna radiator 602, under the excitation of the third feed 601, can simultaneously support the first, third, and fourth frequency bands.

[0118] Among these, two of the sixth, seventh, and eighth resonant modes can be resonant modes dominated by the second radiating stub 620, and the remaining one of the sixth, seventh, and eighth resonant modes can be resonant modes dominated by the second parasitic stub 621. The resonant current of the resonant mode dominated by the second radiating stub 620 is mainly distributed in the second radiating stub 620, while the resonant current of the resonant mode dominated by the second parasitic stub 621 is mainly distributed in the second parasitic stub 621.

[0119] In one possible embodiment, the sixth and seventh resonant modes can be resonant modes dominated by the second radiating branch 620, and the eighth resonant mode can be a resonant mode dominated by the second parasitic branch 621.

[0120] like Figure 12As shown, the third feed point N is located between the fourth ground terminal K and the fourth free terminal M. The sixth resonant mode includes a sixth resonant current generated on the second radiating stub 620 between the fourth ground terminal K and the fourth free terminal M. The seventh resonant mode includes a seventh resonant current generated on the second radiating stub 620 between the third feed point N and the fourth free terminal M. The eighth resonant mode includes an eighth resonant current generated on the second parasitic stub 621 between the fifth free terminal O and the fifth ground terminal P.

[0121] The third feed point N can be relatively close to the fourth grounding terminal K, or the third feed point N can be relatively close to the fourth free terminal M, or the third feed point N can be located between the fourth grounding terminal K and the fourth free terminal M.

[0122] Understandably, the sixth resonant current of the sixth resonant mode is distributed from the fourth ground terminal K to the fourth free terminal M of the second radiating stub 620. The distribution of the sixth resonant current can be seen in the appendix. Figure 12 As shown in Figure I6, the sixth resonant current forms a strong resonant current point at the fourth ground terminal K and a strong electric field point at the fourth free terminal M. The sixth resonant current exhibits a strong-weak distribution between the fourth ground terminal K and the fourth free terminal M. The sixth resonant mode is a 1 / 4 wavelength mode. In other words, the length of the second radiating stub 620 can be equal to 1 / 4 wavelength of the first frequency band. The seventh resonant current of the seventh resonant mode is distributed from the third feed point N of the second radiating stub 620 to the fourth free terminal M. The distribution of the seventh resonant current can be seen in the attached figure. Figure 12 As shown in Figure I7, the eighth resonant current of the eighth resonant mode is distributed from the fifth ground terminal P to the fifth free terminal O of the second parasitic stub 621. The distribution of the eighth resonant current can be seen in the appendix. Figure 12 As shown in Figure I8, the eighth resonant current forms a strong resonant current point at the fifth ground terminal P and a strong electric field point at the fifth free terminal O. The eighth resonant current exhibits a strong-weak distribution between the fifth ground terminal P and the fifth free terminal O. The eighth resonant mode is a 1 / 4 wavelength mode. In other words, the length of the second parasitic stub 621 can be equal to 1 / 4 wavelength of the fourth frequency band.

[0123] Furthermore, such as Figure 13 As shown, the third antenna element 60 also includes a first matching circuit 603. The first matching circuit 603 is capacitive. The first matching circuit 603 is electrically connected to the second parasitic stub 621.

[0124] The first matching circuit 603 includes at least one capacitor. The first matching circuit 603 may include a small capacitor. The second parasitic stub 621 also includes a first matching point. The first matching point may be located between the fifth ground terminal P and the fifth free terminal O, or the first matching point may be located at the fifth free terminal O. The first matching point is electrically connected to the first matching circuit 603. The first matching point and the first matching circuit 603 can be directly electrically connected or indirectly electrically connected. For example, the first matching point and the first matching circuit 603 can be directly soldered, or electrically connected through electrical connectors such as coaxial cables, microstrip lines, conductive springs, conductive adhesive, and circuit boards.

[0125] By setting up a capacitive first matching circuit 603, the length of the second parasitic stub 621 can be reduced while enabling it to generate a mode supporting the eighth resonant mode in the fourth frequency band under the excitation of the third feed source 601. This facilitates the placement of both the second radiating stub 620 and the second parasitic stub 621 in the second region Z2. In this embodiment, the length of the second parasitic stub 621 can be less than the length of the first parasitic stub 521.

[0126] Optionally, the second parasitic branch 621 is located on the side of the second radiating branch 620 away from the top frame 101. Understandably, the second parasitic branch 621 is further away from the top frame 101 and closer to the bottom frame 103 than the second radiating branch 620. The fourth grounding terminal K, the third feed point N, the fourth free terminal M, the fifth free terminal O, and the fifth grounding terminal P are arranged sequentially.

[0127] The second coupling gap between the fourth free end M and the fifth free end O forms the opening of the third antenna radiator 602. By positioning the second parasitic stub 621 on the side of the second radiating stub 620 away from the top frame 101, and arranging the fourth ground end K, the third feed point N, the fourth free end M, the fifth free end O, and the fifth ground end P in sequence, the opening of the third antenna radiator 602 can be made to face downwards. This reduces the amount of time the hand touches the fourth free end M and the fifth free end O when using the electronic device 100 in landscape mode, thereby reducing the efficiency drop of the third antenna radiator 602 in landscape hand-held scenarios. Experiments have verified that the efficiency drop of the third antenna radiator 602 can be reduced to 2dB to 3dB, which is a significant improvement compared to the 7dB to 8dB drop in other solutions.

[0128] Further, please refer to Figure 14 and Figure 15The third antenna element 60 also includes a second switching tuning circuit 604. The second radiating stub 620 also includes a second tuning point Q, which is electrically connected to the second switching tuning circuit 604. Under the action of the third feed 601 and the second switching tuning circuit 604, the second radiating stub 620 switches to generate a sixth resonant mode, a ninth resonant mode supporting the second frequency band, and a tenth resonant mode supporting the sixth frequency band.

[0129] The second tuning point Q can be located between the fourth ground terminal K and the fourth free terminal M, or it can be located at the fourth free terminal M, or it can be located at the fourth ground terminal K. The second tuning point Q and the third feed point N may or may not coincide. The second tuning point Q can be directly electrically connected to the second switch tuning circuit 604, or it can be indirectly electrically connected. For example, the second tuning point Q and the second switch tuning circuit 604 can be directly soldered, or electrically connected through coaxial cables, microstrip lines, conductive springs, conductive adhesive, circuit boards, or other electrical connectors.

[0130] In one possible embodiment, such as Figure 14 As shown, the second tuning point Q and the third feed point N can coincide, and the second switching tuning circuit 604 can be connected in series between the third feed 601 and the second radiating stub 620. In another possible embodiment, as... Figure 15 As shown, the second tuning point Q and the third feed point N may not coincide. One end of the second switching tuning circuit 604 is electrically connected to the second tuning point Q, and the other end of the second switching tuning circuit 604 is grounded. At this time, the grounding loop formed by the second tuning point Q, the second switching tuning circuit 604, and the reference ground is connected in parallel with the grounding loop formed by the fourth grounding terminal K and the reference ground.

[0131] Understandably, the second radiating stub 620 does not simultaneously support the first, second, and sixth frequency bands, but switches between supporting the first, second, and sixth frequency bands. In this embodiment, under the excitation of the third feed 601, the second radiating stub 620 only supports one of the first, second, and sixth frequency bands. Through the tuning action of the second switching tuning circuit 604, the second radiating stub 620 can switch to supporting any of the remaining two of the first, second, and sixth frequency bands under the excitation of the third feed 601.

[0132] The sixth frequency band is located in the mid-frequency band. The sixth frequency band can be one of the following: B1, B2, B3, B4, B34, and B39, which is different from the first and second frequency bands. Alternatively, the sixth frequency band can also be one of the following: N1, N2, N3, N34, and N39, which is different from the first and second frequency bands. The sixth frequency band can be the same as the fifth frequency band in the above embodiments.

[0133] In one possible embodiment, the sixth frequency band is one of the following: B3, B39, or B1, which is different from the first and second frequency bands. For example, when the first frequency band is B1 and the second frequency band is B39, the sixth frequency band can be B3; or, when the first frequency band is B3 and the second frequency band is B39, the sixth frequency band can be B1.

[0134] In this embodiment, the second radiating segment 620 can support both the first and third frequency bands, and can also switch between supporting the second and sixth frequency bands, thereby expanding the communication scenarios and operating bandwidth of the third antenna radiator 602. Furthermore, the B1, B39, and B3 frequency bands cover the main frequency bands used in gaming scenarios. Therefore, by making the sixth frequency band different from the first and second frequency bands among the B3, B39, and B1 bands, the second radiating segment 620 can function as a gaming antenna, improving the performance of the electronic device 100 in gaming scenarios.

[0135] Optional, such as Figure 16 As shown, the second tuning point Q does not coincide with the third feed point N. One end of the second switching tuning circuit 604 is electrically connected to the second tuning point Q, and the other end is grounded. The second switching tuning circuit 604 includes a second switch 640, a third sub-tuning circuit 641, and a fourth sub-tuning circuit 642. When the second switch 640 is open and both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642 are closed, the second radiating stub 620 supports the first frequency band. When the second switch 640 is closed and the third sub-tuning circuit 641 is closed, the second radiating stub 620 supports the second frequency band. When the second switch 640 is closed and the fourth sub-tuning circuit 642 is closed, the second radiating stub 620 supports the sixth frequency band.

[0136] Understandably, in this embodiment, the grounding loop formed by the second tuning point Q, the second switch tuning circuit 604, and the reference ground is connected in parallel with the grounding loop formed by the fourth grounding terminal K and the reference ground. The second switch 640 can be a single-pole single-throw switch, a single-pole multi-throw switch, or a multi-pole single-throw switch. This embodiment uses a single-pole single-throw switch as an example. The third sub-tuning circuit 641 and the fourth sub-tuning circuit 642 can both be capacitive, or both can be inductive. When both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642 are capacitive, their capacitances are different. When both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642 are inductive, their inductances are different.

[0137] In one possible embodiment, the first frequency band includes the B1 band and is a resident frequency band. Both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642 are capacitive, with the capacitance of the third sub-tuning circuit 641 being smaller than that of the fourth sub-tuning circuit 642. When the second switch 640 is disconnected from both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642, the second radiating stub 620 can support the first frequency band; when the second switch 640 is connected to the third sub-tuning circuit 641 with the smaller capacitance, the second radiating stub 620 switches to support the second frequency band, which includes the B39 band; when the second switch 640 is connected to the fourth sub-tuning circuit 642 with the larger capacitance, the second radiating stub 620 switches to support the sixth frequency band, which includes the B3 band.

[0138] In another possible embodiment, the first frequency band includes the B3 band and is a resident frequency band. Both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642 are inductive, with the inductance of the third sub-tuning circuit 641 being less than that of the fourth sub-tuning circuit 642. When the second switch 640 is disconnected from both the third sub-tuning circuit 641 and the fourth sub-tuning circuit 642, the second radiating branch 620 can support the first frequency band; when the second switch 640 is connected to the third sub-tuning circuit 641 with the smaller inductance, the second radiating branch 620 switches to support the second frequency band, which includes the B39 band; when the second switch 640 is connected to the fourth sub-tuning circuit 642 with the larger inductance, the second radiating branch 620 switches to support the sixth frequency band, which includes the B1 band.

[0139] By including a second switch 640, a third sub-tuning circuit 641, and a fourth sub-tuning circuit 642 in the second switching tuning circuit 604, when the second switch 640 is disconnected from both the third and fourth sub-tuning circuits 641 and 642, the second radiating stub 620 supports the first frequency band. This means the second radiating stub 620 can directly support the first frequency band under the excitation of the first feed source 401. This reduces the number of sub-tuning circuits included in the second switching tuning circuit 604, lowering the design and layout complexity of the second switching tuning circuit 604. When the second switch 640 is connected to the third sub-tuning circuit 641, the second radiating stub 620 supports the second frequency band; when the second switch 640 is connected to the fourth sub-tuning circuit 642, the second radiating stub 620 supports the sixth frequency band. This allows the second radiating stub 620 to switch between supporting the second and sixth frequency bands while maintaining its efficiency in both modes.

[0140] Please refer to Figure 17 and Figure 18The third feed point N can be located between the fourth ground terminal K and the fourth free terminal M. The second tuning point Q can be located between the fourth ground terminal K and the third feed point N. The sixth resonant mode includes a sixth resonant current generated on the second radiating stub 620 between the fourth ground terminal K and the fourth free terminal M. The ninth resonant mode includes a ninth resonant current generated on the second radiating stub 620 between the fourth free terminal M and the second tuning point Q, and on the third sub-tuning circuit 641. The tenth resonant mode includes a tenth resonant current generated on the second radiating stub 620 between the fourth free terminal M and the second tuning point Q, and on the fourth sub-tuning circuit 642.

[0141] The third feed point N can be relatively close to the fourth grounding terminal K, or relatively close to the fourth free terminal M, or located between the fourth grounding terminal K and the fourth free terminal M. The second tuning point Q can be relatively close to the fourth grounding terminal K, or relatively close to the third feed point N, or located between the fourth grounding terminal K and the third feed point N.

[0142] Understandably, the sixth resonant current of the sixth resonant mode can be referenced in the appendix. Figure 12 As shown in Figure I6, it will not be elaborated further here. The ninth resonant current of the ninth resonant mode is distributed from the fourth free terminal M of the second radiating branch 620 to the second tuning point Q, and on the third sub-tuning circuit 641. The distribution of the ninth resonant current can be referred to the appendix. Figure 17 As shown in Figure I9, the tenth resonant current of the tenth resonant mode is distributed from the fourth free terminal M of the second radiating stub 620 to the second tuning point Q, and on the fourth sub-tuning circuit 642. The distribution of the tenth resonant current can be seen in the appendix. Figure 18 As shown in I10.

[0143] Furthermore, such as Figure 19 As shown, the electronic device 100 also includes a fourth antenna element 70. The fourth antenna element 70 includes a fourth feed 701 and a fourth antenna radiator 702.

[0144] In this application, the fourth antenna unit 70 is an antenna unit that supports the WIFI frequency band. The fourth feed source 701 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. This embodiment uses the fourth feed source 701 located on the motherboard 30 as an example. The fourth feed source 701 can be understood as a port located on the motherboard 30 and relatively close to the fourth antenna radiator 702. The fourth feed source 701 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the fourth antenna radiator 702 to generate a corresponding resonant current. The fourth antenna radiator 702 can be an internal antenna or an external antenna. When the fourth antenna radiator 702 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the fourth antenna radiator 702 is an external antenna, its form includes, but is not limited to, a metal frame antenna, an FPC antenna located on the outer surface of a non-conductive frame, an LDS antenna, or a PDS antenna.

[0145] The fourth antenna radiator 702 includes a first radiating segment 720 and a second radiating segment 721 that are bent and connected. The first radiating segment 720 and the second radiating segment 721 are bent and connected in a straight line at 90° or in a quarter-circle arc.

[0146] A first radiating segment 720 is disposed on the top frame 101. A second radiating segment 721 is disposed on the second side frame 104. The first radiating segment 720 disposed on the top frame 101 may be disposed on the inner surface of the top frame 101, or the first radiating segment 720 may be integrated into the top frame 101, or the first radiating segment 721 may be disposed on the outer surface of the top frame 101. The second radiating segment 721 disposed on the second side frame 104 may be disposed on the inner surface of the second side frame 104, or the second radiating segment 721 may be integrated into the second side frame 104, or the second radiating segment 721 may be disposed on the outer surface of the second side frame 104. In one possible embodiment, the top frame 101 and the second side frame 104 may be made of conductive materials such as metal or alloy. A portion of the top frame 101 may be reused as the first radiating segment 720, and a portion of the second side frame 104 near the top frame 101 may be reused as the second radiating segment 721.

[0147] The fourth antenna radiator 702 includes a sixth ground terminal R, a sixth free terminal S, and a fourth feed point T. The sixth ground terminal R is located at the end of the second radiating segment 721 away from the first radiating segment 720 and is grounded. The end of the first radiating segment 720 away from the second radiating segment 721 forms a fifth free terminal O. The fourth feed point T is electrically connected to the fourth feed source 701. The fourth feed point T can be located in the first radiating segment 720, or it can be located in the second radiating segment 721. In the embodiment of this application, the fourth feed point T is located in the first radiating segment 720.

[0148] The first radiating segment 720 and the second radiating segment 721 support the seventh and eighth frequency bands under the excitation of the fourth feed 701. It is understood that the fourth antenna radiator 702 can simultaneously support the seventh and eighth frequency bands under the excitation of the fourth feed 701. The seventh and eighth frequency bands are different Wi-Fi frequency bands. In one possible embodiment, the seventh and eighth frequency bands can be the Wi-Fi 2.4G and Wi-Fi 5G frequency bands, respectively. The resonant current corresponding to the resonant mode of the Wi-Fi 2.4G frequency band can be distributed from the sixth ground terminal R to the sixth free terminal S. The resonant current corresponding to the resonant mode of the Wi-Fi 5G frequency band can be distributed from the fourth feed point T to the sixth free terminal S.

[0149] Optional, please refer to Figure 20 and Figure 21 The fourth antenna unit 70 also includes a second matching circuit 703, which is capacitive, and the sixth ground terminal R is grounded through the second matching circuit 703. Alternatively, the fourth antenna unit 70 also includes a grounding component 704, which is spaced from the sixth ground terminal R and the grounding component 704, and the sixth ground terminal R is grounded through the grounding component 704.

[0150] In one possible embodiment, such as Figure 20 As shown, the fourth antenna element 70 further includes a second matching circuit 703, which includes at least one capacitor. The second matching circuit 703 may include a large capacitor. The second radiating section 721 also includes a second matching point located at the sixth ground terminal R. One end of the second matching circuit 703 is electrically connected to the second matching point, and the other end is grounded. By grounding the sixth ground terminal R through the second matching circuit 703, the second matching circuit 703 becomes capacitive, which can form signal isolation between the sixth ground terminal R and the fourth ground terminal K, thereby improving the isolation between the fourth antenna element 70 and the third antenna element 60.

[0151] In another possible embodiment, such as Figure 21As shown, the fourth antenna element 70 also includes a grounding element 704. The sixth grounding terminal R and the grounding element 704 are spaced apart from the fourth grounding terminal K, and the sixth grounding terminal R is grounded through the grounding element 704. The grounding element 704 can be a metal spring or similar material. By making the sixth grounding terminal R and the grounding element 704 spaced apart from the fourth grounding terminal K, and by grounding the sixth grounding terminal R through the grounding element 704, physical isolation can be formed between the sixth grounding terminal R and the fourth grounding terminal K, thereby improving the isolation between the fourth antenna element 70 and the third antenna element 60.

[0152] Furthermore, such as Figure 22 As shown, the electronic device 100 also includes a camera module 11 disposed within the frame 10. The distance between the camera module 11 and the second side frame 104 is less than the distance between the camera module 11 and the first side frame 102. It is understood that the second side frame 104 is closer to the camera module 11 than the first side frame 102. The camera module 11 corresponds to the second region Z2 of the second side frame 104. In this embodiment, the antenna unit arranged on the first side frame 102 is far from the camera module 11 and is unaffected by the metal components in the camera module 11. Only the third antenna unit 60 is arranged on the second side frame 104 near the camera module 11, which reduces the layout difficulty of the antenna unit and camera module 11 in the electronic device 100, improving space utilization while ensuring antenna efficiency.

[0153] like Figure 23 As shown, the electronic device 100 also includes a fifth antenna unit 80 and a sixth antenna unit 90. The fifth antenna unit 80 includes a fifth feed 801 and a fifth antenna radiator 802 electrically connected to the fifth feed 801. At least a portion of the fifth antenna radiator 802 is located in the first region Z1 and on the side of the first antenna radiator 402 facing the top frame 101. The fifth antenna radiator 802, under the excitation of the fifth feed 801, supports a ninth frequency band and a tenth frequency band. The ninth frequency band is located in the low-frequency band, and the tenth frequency band is located in the high-frequency band or ultra-high-frequency band. The sixth antenna unit 90 includes a sixth feed 901 and a sixth antenna radiator 902 electrically connected to the sixth feed 901. At least a portion of the sixth antenna radiator 902 is located in the second region Z2 and on the side of the third antenna radiator 602 away from the top frame 101. The sixth antenna radiator 902, under the excitation of the sixth feed 901, supports an eleventh frequency band and a twelfth frequency band. The eleventh and twelfth frequency bands are different WIFI frequency bands.

[0154] In this application, the fifth antenna element 80 is an antenna element that can support low-frequency bands, high-frequency bands, or ultra-high-frequency bands. The sixth antenna element 90 is an antenna element that can support the WIFI band. The low-frequency band ranges from 704MHz to 960MHz. The low-frequency band includes the B5 / N5 band (uplink 824MHz~849MHz; downlink 869MHz~894MHz), the B8 / N8 band (uplink 880MHz~915MHz; downlink 925MHz~960MHz), the B20 / N20 band (uplink 832MHz~862MHz; downlink 791MHz~821MHz), and the B28 band (uplink 703MHz~748MHz; downlink 758MHz~803MHz).

[0155] The fifth feed source 801 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the fifth feed source 801 is located on the motherboard 30. The fifth feed source 801 can be understood as a port located on the motherboard 30 and relatively close to the fifth antenna radiator 802. The fifth feed source 801 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the fifth antenna radiator 802 to generate a corresponding resonant current. The fifth antenna radiator 802 can be an internal antenna or an external antenna. When the fifth antenna radiator 802 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the fifth antenna radiator 802 is an external antenna, its form includes, but is not limited to, an antenna with a metal frame 10, an FPC antenna, an LDS antenna, or a PDS antenna located on the outer surface of the non-conductive frame 10.

[0156] In one possible embodiment, a portion of the fifth antenna radiator 802 is disposed on the first side frame 102, and another portion of the fifth antenna radiator 802 is disposed on the top frame 101. Optionally, a portion of the first side frame 102 near the top frame 101 can be reused as a portion of the fifth antenna radiator 802, and a portion of the top frame 101 near the first side frame 102 can be reused as another portion of the fifth antenna radiator 802.

[0157] The fifth antenna radiator 802, under the excitation of the fifth feed 801, can simultaneously support the ninth and tenth frequency bands. The ninth frequency band can be one of the following: B5, B8, B20, or B28; or, it can be one of the following: N5, N8, N20, or N28. The tenth frequency band can be one of the following: B40, B41, B38, or B7; or, it can be one of the following: N40, N41, N38, N7, N77, N78, or N79. In this embodiment, the tenth frequency band is taken as N78, meaning it is located in the ultra-high frequency band.

[0158] The sixth feed source 901 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the sixth feed source 901 is located on the motherboard 30. The sixth feed source 901 can be understood as a port located on the motherboard 30 and relatively close to the sixth antenna radiator 902. The sixth feed source 901 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the sixth antenna radiator 902 to generate a corresponding resonant current. The sixth antenna radiator 902 can be an internal antenna or an external antenna. When the sixth antenna radiator 902 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the sixth antenna radiator 902 is an external antenna, its form includes, but is not limited to, a metal frame antenna 10, an FPC antenna, an LDS antenna, or a PDS antenna located on the outer surface of the non-conductive frame 10.

[0159] In one possible embodiment, a portion of the sixth antenna radiator 902 is disposed in the second region Z2, and another portion of the sixth antenna radiator 902 is disposed in the fourth region of the second side frame 104 corresponding to the battery 20. Optionally, a portion of the second side frame 104 can be reused as another portion of the sixth antenna radiator 902.

[0160] The sixth antenna radiator 902, under the excitation of the sixth feed 901, can simultaneously support the eleventh and twelfth frequency bands. In one possible embodiment, the eleventh and twelfth frequency bands can be the WIFI 2.4G and WIFI 5G frequency bands, respectively. The resonant current corresponding to the resonant mode of the WIFI 2.4G frequency band can be distributed from the ground end to the free end of the sixth antenna radiator 902. The resonant current corresponding to the resonant mode of the WIFI 5G frequency band can be distributed from the feed point to the free end of the sixth antenna radiator 902.

[0161] like Figure 23As shown, the electronic device 100 also includes a seventh antenna unit 21 and an eighth antenna unit 31. The seventh antenna unit 21 includes a seventh feed 210 and a seventh antenna radiator 211 electrically connected to the seventh feed 210. The seventh antenna radiator 211 is located on the top frame 101. Under the excitation of the seventh feed 210, the seventh antenna radiator 211 supports the thirteenth and fourteenth frequency bands. The thirteenth frequency band is the GPS band, and the fourteenth frequency band is located in the high-frequency or ultra-high-frequency band. The eighth antenna unit 31 includes an eighth feed 310 and an eighth antenna radiator 311 electrically connected to the eighth feed 310. The eighth antenna radiator 311 is located on the top frame 101. Under the excitation of the eighth feed 310, the eighth antenna radiator 311 supports the fifteenth and sixteenth frequency bands. The fifteenth frequency band is located in the intermediate-frequency band, and the sixteenth frequency band is located in the high-frequency or ultra-high-frequency band.

[0162] In this application, the seventh antenna element 21 is an antenna element that can support GPS frequency band, high frequency band, or ultra-high frequency band. The eighth antenna element 31 is an antenna element that can support mid frequency band, high frequency band, or ultra-high frequency band.

[0163] The seventh feed source 210 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the seventh feed source 210 is located on the motherboard 30. The seventh feed source 210 can be understood as a port located on the motherboard 30 and relatively close to the seventh antenna radiator 211. The seventh feed source 210 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the seventh antenna radiator 211 to generate a corresponding resonant current. The seventh antenna radiator 211 can be an internal antenna or an external antenna. When the seventh antenna radiator 211 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the seventh antenna radiator 211 is an external antenna, its form includes, but is not limited to, an antenna with a metal frame 10, an FPC antenna, an LDS antenna, or a PDS antenna located on the outer surface of the non-conductive frame 10.

[0164] All of the seventh antenna radiators 211 are located on the top frame 101. The seventh antenna radiators 211 are spaced between the fourth antenna radiator 702 and the fifth antenna radiator 802.

[0165] The seventh antenna radiator 211, under the excitation of the seventh feed 210, can simultaneously support the thirteenth and fourteenth frequency bands. The thirteenth frequency band can be one of the GPS L1 band or the GPS L5 band. The fourteenth frequency band can be one of the B40 band, B41 band, B38 band, or B7 band; or, the fourteenth frequency band can be one of the N40 band, N41 band, N38 band, N7 ​​band, N77 band, N78 band, or N79 band. In this embodiment, the fourteenth frequency band is taken as N78 band, that is, the fourteenth frequency band is located in the ultra-high frequency band.

[0166] The eighth feed source 310 can be located on the motherboard 30 or on a small circuit board electrically connected to the motherboard 30. In this embodiment, the eighth feed source 310 is located on the motherboard 30. The eighth feed source 310 can be understood as a port located on the motherboard 30 and relatively close to the eighth antenna radiator 311. The eighth feed source 310 is electrically connected to the radio frequency chip on the motherboard 30 and is used to receive the radio frequency current emitted by the radio frequency chip to excite the eighth antenna radiator 311 to generate a corresponding resonant current. The eighth antenna radiator 311 can be an internal antenna or an external antenna. When the eighth antenna radiator 311 is an internal antenna, its form includes, but is not limited to, an FPC antenna, an LDS antenna, a PDS antenna, or a conductive sheet antenna. When the eighth antenna radiator 311 is an external antenna, its form includes, but is not limited to, a metal frame antenna 10, an FPC antenna, an LDS antenna, or a PDS antenna located on the outer surface of the non-conductive frame 10.

[0167] All of the eighth antenna radiators 311 are located on the top frame 101. The eighth antenna radiators 311 are spaced between the seventh antenna radiator 211 and the fifth antenna radiator 802.

[0168] The eighth antenna radiator 311, under the excitation of the eighth feed 310, can simultaneously support the fifteenth and sixteenth frequency bands. The fifteenth frequency band can be one of the following: B1, B2, B3, B4, B34, or B39; or, N1, N2, N3, N34, or N39. The sixteenth frequency band can be one of the following: B40, B41, B38, or B7; or, the tenth frequency band can be one of the following: N40, N41, N38, N7, N77, N78, or N79. In this embodiment, the sixteenth frequency band is taken as N41, meaning it is located in a high-frequency band.

[0169] Please refer to Figure 24 and Figure 25 , Figure 24Efficiency curve for the third antenna element 60 supporting the B3 band. Figure 24 Curve a is the radiation efficiency curve, and curve b is the system efficiency curve; Figure 25 The efficiency curve for the third antenna element 60 supporting the B1 band. Figure 25 Curve c represents the radiation efficiency curve, and curve d represents the system efficiency curve. From... Figure 24 Curve b shows that the third antenna element 60 achieves a system efficiency of -6.6dB when supporting the 1.8GHz frequency, and also exhibits high radiation efficiency. From... Figure 25 As can be seen from curve d, the system efficiency of the third antenna element 60 can reach -5dB when supporting the 2GHz frequency, and the radiation efficiency is also relatively high.

[0170] Please refer to Figure 26 and Figure 27 , Figure 26 The graph shows the efficiency of the first antenna element 40 when it supports the B3 band. Figure 26 Curve e is the radiation efficiency curve, and curve f is the system efficiency curve; Figure 27 The graph shows the efficiency of the first antenna element 40 when it supports the B1 band. Figure 27 Curve g represents the radiation efficiency curve, and curve h represents the system efficiency curve. From... Figure 26 Curve f shows that the first antenna element 40 achieves a system efficiency of -6.3dB when supporting the 1.7GHz frequency band and -6dB when supporting the 1.8GHz frequency band, with relatively high radiation efficiency. Figure 27 As can be seen from curve h, the system efficiency of the first antenna element 40 can reach -4.72dB when supporting the 2GHz frequency point and -4.76dB when supporting the 2.1GHz frequency point, and the radiation efficiency is also relatively high.

[0171] like Figure 28 As shown, Figure 28 The efficiency curve of the second antenna unit 50 when it supports the B41 / N41 frequency band. Figure 28 Curve j represents the radiation efficiency curve, and curve k represents the system efficiency curve. From... Figure 28 As shown in curve k, the system efficiency of the second antenna element 50 can reach -4.36dB when supporting the 2.46GHz frequency band and -4.43dB when supporting the 2.71GHz frequency band, with relatively high radiation efficiency. The efficiency of the second antenna element 50 is improved by more than 1dB when supporting the B41 / N41 frequency band.

[0172] like Figure 29 As shown, Figure 29 Efficiency curve of the fourth antenna unit 70 supporting the WIFI 2.4G band. Figure 29Curve m represents the radiation efficiency curve, and curve n represents the system efficiency curve. From... Figure 29 As can be seen from curve n, the fourth antenna element 70 can achieve a system efficiency of -4.29dB when supporting the 2.44GHz frequency point, and its radiation efficiency is also relatively high.

[0173] Please refer to Figure 30 and Figure 31 , Figure 30 This is a comparison chart showing the efficiency of the third antenna element 60 of the electronic device 100 in landscape and free-hold scenarios when the opening of the third antenna radiator 602 faces upwards. Figure 30 In the middle section, curve p represents the radiation efficiency curve under free-scene conditions, and curve q represents the system efficiency curve under free-scene conditions. Figure 30 The curve r is the radiation efficiency curve in the landscape grip scenario, and the curve s is the system efficiency curve in the landscape grip scenario. Figure 31 This is a comparison chart showing the efficiency of the third antenna element 60 of the electronic device 100 in landscape and free-hold scenarios when the opening of the third antenna radiator 602 faces downwards. Figure 31 In the middle section, curve t represents the radiation efficiency curve under free-scene conditions, and curve u represents the system efficiency curve under free-scene conditions. Figure 31 Curve v represents the radiation efficiency curve in a landscape grip scenario, and curve w represents the system efficiency curve in a landscape grip scenario. (Comparison) Figure 31 The curve u and Figure 30 As can be seen from the curve q, this application improves the design of the third antenna element 60 by making the opening of the third antenna radiator 602 face downwards, thereby improving the system efficiency of the third antenna element 60 supporting the B1 band by approximately 2dB in free-scene conditions. (Comparison) Figure 31 medium curve v and Figure 30 As can be seen from the curve r, this application improves the design of the third antenna element 60 by making the opening of the third antenna radiator 602 face downwards. This results in an approximately 3dB improvement in the radiation efficiency of the third antenna element 60 in the B1 band and an approximately 2dB improvement in the radiation efficiency of the N78 band in a landscape grip scenario. (Comparison) Figure 31 medium curve w and Figure 30 As can be seen from the curve s, this application improves the design of the third antenna unit 60 so that the opening of the third antenna radiator 602 faces downwards. As a result, the system efficiency of the third antenna unit 60 supporting the B1 band is improved by about 4dB in the horizontal screen holding scenario, and the system efficiency supporting the N78 band is improved by about 3dB.

[0174] like Figure 32 As shown, Figure 32 The efficiency curves of the first antenna unit 40 of the electronic device 100 in landscape holding scenario and free scenario are shown. Figure 32Curve a1 represents the radiation efficiency curve under free-scene conditions, and curve a2 represents the system efficiency curve under free-scene conditions. Figure 32 Curve a3 represents the radiation efficiency curve in a landscape grip scenario, and curve a4 represents the system efficiency curve in a landscape grip scenario. From Figure 32 Curve a1 shows that the radiation efficiency of the first antenna element 40 supporting the B1 band can reach -3.7 dB in a free scenario. From Figure 32 Curve a3 shows that the radiation efficiency of the first antenna element 40 supporting the B1 band can reach -11.5dB in a landscape grip scenario. From Figure 32 Curve a2 shows that in a free scenario, the system efficiency when the first antenna element 40 supports the B1 band is close to the radiation efficiency at that point. From... Figure 32 Curve a4 shows that the system efficiency of the first antenna element 40 supporting the B1 band in a landscape holding scenario is close to the radiation efficiency at that time. Therefore, it can be concluded that the efficiency drop of the first antenna element 40 under landscape holding is relatively small, which can meet communication requirements.

[0175] like Figure 33 As shown, Figure 33 The efficiency comparison chart shows that the second antenna unit 50 supports both mid-frequency and high-frequency bands simultaneously, and that the second antenna unit 50 only supports the high-frequency band. Figure 33 Curve b1 represents the radiation efficiency curve when the second antenna unit 50 only supports the high-frequency band, while curve b2 represents the radiation efficiency curve when the second antenna unit 50 supports both the mid-frequency and high-frequency bands. Figure 33 Curve b3 shows the system efficiency curve when the second antenna unit 50 only supports the high-frequency band, while curve b4 shows the system efficiency curve when both the mid-frequency and high-frequency bands are supported. (Comparison) Figure 33 As can be seen from curves b1 and b2, the radiation efficiency of the second antenna element 50 provided in this application when supporting only the high-frequency band is better than the radiation efficiency when the second antenna element 50 supports both the mid-frequency and high-frequency bands. This is because after the mid-frequency and high-frequency bands are respectively separated into the first antenna element 40 and the second antenna element 50, the radiation efficiency of each antenna element is improved. (Comparison) Figure 33 As can be seen from curves b3 and b4, the system efficiency of the second antenna unit 50 provided in this application when it only supports the high frequency band is better than the system efficiency of the second antenna unit 50 when it supports both the mid-frequency and high-frequency bands. That is, after the mid-frequency and high-frequency bands are respectively separated into the first antenna unit 40 and the second antenna unit 50, the system efficiency of each antenna unit is improved, the communication performance of the electronic device 100 is better, and in the B41 / N41 frequency band, the system efficiency can be improved by more than 1dB.

[0176] like Figure 34 As shown, Figure 34Isolation curves when the third antenna unit 60 supports the B41 / N41 frequency band and the fourth antenna unit 70 supports the WIFI 2.4G frequency band. Figure 34 Curve c1 represents the isolation curve when the sixth ground terminal R of the fourth antenna unit 70 is grounded through the second matching circuit 703 or the grounding component 704, and the third antenna unit 60 supports the B41 / N41 frequency band and the fourth antenna unit 70 supports the WIFI 2.4G frequency band. Figure 34 Curve c2 represents the isolation curve when the sixth grounding terminal R of the fourth antenna element 70 is grounded via a physical rib, and the third antenna element 60 supports the B41 / N41 frequency band, while the fourth antenna element 70 supports the WIFI 2.4G frequency band. (Comparison) Figure 34 As can be seen from curves c1 and c2, this application improves the grounding method of the sixth grounding terminal R of the fourth antenna unit 70, thereby increasing the isolation of the third antenna unit 60 supporting the B41 / N41 frequency band and the fourth antenna unit 70 supporting the WIFI 2.4G frequency band by approximately 5dB. This can improve the efficiency of the third antenna unit 60 supporting the B41 / N41 frequency band and the fourth antenna unit 70 supporting the WIFI 2.4G frequency band.

[0177] like Figure 35 As shown, Figure 35 Efficiency curves for the fourth antenna element 70 when grounded in different ways. Figure 35 Curve d1 represents the radiation efficiency curve when the sixth ground terminal R of the fourth antenna element 70 is grounded through the second matching circuit 703 or the grounding component 704. Figure 35 Curve d2 represents the radiation efficiency curve when the sixth grounding terminal R of the fourth antenna element 70 is grounded through a physical rib. Figure 35 Curve d3 represents the system efficiency curve when the sixth ground terminal R of the fourth antenna element 70 is grounded through the second matching circuit 703 or the grounding component 704. Figure 35 Curve d4 represents the system efficiency curve when the sixth ground terminal R of the fourth antenna element 70 is grounded through a physical rib. (Comparison) Figure 35 As can be seen from curves d1 and d2, the radiation efficiency is improved after the sixth ground terminal R of the fourth antenna element 70 is grounded through the second matching circuit 703 or the grounding component 704. (Comparison) Figure 35 As can be seen from curves d3 and d4, the system efficiency is improved after the sixth grounding terminal R of the fourth antenna element 70 is grounded through the second matching circuit 703 or the grounding component 704.

[0178] The features mentioned above in the specification, claims, and drawings can be arbitrarily combined with each other, provided they are meaningful within the scope of this application. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: The border includes a top border, a first side border, a bottom border, and a second side border that are connected end to end. The first side border includes a first area, which is adjacent to the top border and spaced apart from the bottom border. The first antenna element includes a first feed, a first antenna radiator, and a first switching tuning circuit. The first antenna radiator is located in the first region and includes a first ground terminal, a first free terminal, a first feed point, and a first tuning point. The first ground terminal is grounded, the first feed point is electrically connected to the first feed, and the first tuning point is electrically connected to the first switching tuning circuit. Under the action of the first feed and the first switching tuning circuit, the first antenna radiator switches to generate a first resonant mode supporting a first frequency band and a second resonant mode supporting a second frequency band. Both the first frequency band and the second frequency band are located in the intermediate frequency band. and The second antenna element includes a second feed and a second antenna radiator. The second antenna radiator includes a first radiating stub and a first parasitic stub spaced apart. At least a portion of the first radiating stub is located in the first region and on the side of the first antenna radiator away from the top frame. The first radiating stub includes a second grounding terminal, a second free terminal, and a second feed point. The second grounding terminal is grounded, and the second feed point is electrically connected to the second feed. The first parasitic stub is located in the first side frame and on the side of the first radiating stub away from the first antenna radiator. The first parasitic stub is located outside the first region. The first parasitic stub includes a third free terminal and a third grounding terminal. A first coupling gap is formed between the third free terminal and the second free terminal. The third grounding terminal is grounded. Under the excitation of the second feed, the first radiating stub and the first parasitic stub generate a third resonant mode supporting a third frequency band and a fourth resonant mode supporting a fourth frequency band. The third frequency band is located in the high frequency band or ultra-high frequency band, and the fourth frequency band is located in the high frequency band or ultra-high frequency band.

2. The electronic device according to claim 1, characterized in that, The first antenna radiator, under the action of the first feed and the first switching tuning circuit, also switches to generate a fifth resonant mode supporting the fifth frequency band, which is located in the intermediate frequency band. Among them, one of the first frequency band, the second frequency band and the fifth frequency band is the B3 frequency band, the other of the first frequency band, the second frequency band and the fifth frequency band is the B39 frequency band, and yet another of the first frequency band, the second frequency band and the fifth frequency band is the B1 frequency band.

3. The electronic device according to claim 2, characterized in that, The first tuning point does not coincide with the first feed point. One end of the first switching tuning circuit is electrically connected to the first tuning point, and the other end is grounded. The first switching tuning circuit includes a first switch, a first sub-tuning circuit, and a second sub-tuning circuit. When the first switch is disconnected from both the first sub-tuning circuit and the second sub-tuning circuit, the first antenna radiator supports the first frequency band. When the first switch is connected to the first sub-tuning circuit, the first antenna radiator supports the second frequency band. When the first switch is connected to the second sub-tuning circuit, the first antenna radiator supports the fifth frequency band.

4. The electronic device according to claim 3, characterized in that, The first feed point is located between the first ground terminal and the first free terminal, and the first tuning point is located between the first feed point and the first ground terminal; the first resonant mode includes a first resonant current generated on the first antenna radiator between the first ground terminal and the first free terminal, and the second resonant mode includes a second resonant current generated on the first antenna radiator between the first free terminal and the first tuning point, and on the first sub-tuning circuit; the fifth resonant mode includes a third resonant current generated on the first antenna radiator between the first free terminal and the first tuning point, and on the second sub-tuning circuit.

5. The electronic device according to claim 1, characterized in that, The second feed point is located between the second ground terminal and the second free terminal. The third resonant mode includes a fourth resonant current generated on the first radiating stub between the second ground terminal and the second free terminal. The fourth resonant mode includes a fifth resonant current generated on the first parasitic stub between the third free terminal and the third ground terminal.

6. The electronic device according to claim 1, characterized in that, The first free end is located on the side of the first ground end away from the top frame, and the second ground end, the second feed point, the second free end, the third free end and the third ground end are arranged in sequence.

7. The electronic device according to any one of claims 1 to 6, characterized in that, The second side frame includes a second region, the orthographic projection of the second region onto the first side frame coincides with the first region. The electronic device further includes a third antenna unit, the third antenna unit includes a third feed and a third antenna radiator, the third antenna radiator is disposed in the second region, the third antenna radiator is electrically connected to the third feed, and under the excitation of the third feed, generates a sixth resonant mode supporting the first frequency band and generates a seventh resonant mode supporting the third frequency band.

8. The electronic device according to claim 7, characterized in that, The third antenna radiator includes a second radiating stub and a second parasitic stub spaced apart. Both the second radiating stub and the second parasitic stub are located in the second region. The second radiating stub includes a fourth grounding terminal, a fourth free terminal, and a third feed point. The fourth grounding terminal is grounded, and the third feed point is electrically connected to the third feed source. The second parasitic stub includes a fifth free terminal and a fifth grounding terminal. A second coupling gap is formed between the fifth free terminal and the fourth free terminal. The fifth grounding terminal is grounded. Under the excitation of the third feed source, the second radiating stub and the second parasitic stub generate the sixth resonant mode, the seventh resonant mode, and the eighth resonant mode supporting the fourth frequency band.

9. The electronic device according to claim 8, characterized in that, The third feed point is located between the fourth ground terminal and the fourth free terminal. The sixth resonant mode includes a sixth resonant current generated on the second radiating stub between the fourth ground terminal and the fourth free terminal. The seventh resonant mode includes a seventh resonant current generated on the second radiating stub between the third feed point and the fourth free terminal. The eighth resonant mode includes an eighth resonant current generated on the second parasitic stub between the fifth free terminal and the fifth ground terminal.

10. The electronic device according to claim 9, characterized in that, The third antenna unit further includes a first matching circuit, which is capacitive, and the second parasitic branch is electrically connected to the first matching circuit.

11. The electronic device according to claim 9, characterized in that, The second parasitic branch is located on the side of the second radiating branch away from the top frame, and the fourth grounding terminal, the third feed point, the fourth free end, the fifth free end and the fifth grounding terminal are arranged in sequence.

12. The electronic device according to claim 8, characterized in that, The third antenna unit further includes a second switching tuning circuit, and the second radiating stub further includes a second tuning point. The second tuning point is electrically connected to the second switching tuning circuit. Under the action of the third feed and the second switching tuning circuit, the second radiating stub switches to generate the sixth resonant mode, the ninth resonant mode supporting the second frequency band, and the tenth resonant mode supporting the sixth frequency band. The sixth frequency band is located in the mid-frequency band.

13. The electronic device according to claim 12, characterized in that, The sixth frequency band is one of the B3, B39, and B1 bands that is different from the first and second frequency bands. The second tuning point does not coincide with the third feed point. One end of the second switching tuning circuit is electrically connected to the second tuning point, and the other end is grounded. The second switching tuning circuit includes a second switch, a third sub-tuning circuit, and a fourth sub-tuning circuit. When the second switch is disconnected from the third and fourth sub-tuning circuits, the second radiating branch supports the first frequency band. When the second switch is connected to the third sub-tuning circuit, the second radiating branch supports the second frequency band. When the second switch is connected to the fourth sub-tuning circuit, the second radiating branch supports the sixth frequency band.

14. The electronic device according to any one of claims 8 to 13, characterized in that, The electronic device further includes a fourth antenna unit, which includes a fourth feed and a fourth antenna radiator. The fourth antenna radiator includes a first radiating segment and a second radiating segment that are bent and connected. The first radiating segment is located on the top frame, and the second radiating segment is located on the second side frame. The fourth antenna radiator includes a sixth grounding terminal, a sixth free terminal, and a fourth feed point. The sixth grounding terminal is located at the end of the second radiating segment away from the first radiating segment and is grounded. The end of the first radiating segment away from the second radiating segment forms the fifth free terminal. The fourth feed point is electrically connected to the fourth feed. The first radiating segment and the second radiating segment support a seventh frequency band and an eighth frequency band under the excitation of the fourth feed. The seventh frequency band and the eighth frequency band are different WIFI frequency bands.

15. The electronic device according to claim 14, characterized in that, The fourth antenna unit further includes a second matching circuit, which is capacitive, and the sixth ground terminal is grounded through the second matching circuit. Alternatively, the fourth antenna unit further includes a grounding component, with the sixth ground terminal and the grounding component spaced apart from the fourth ground terminal, and the sixth ground terminal being grounded through the grounding component.

16. The electronic device according to any one of claims 1 to 6, characterized in that, The electronic device also includes a camera module disposed within the frame, wherein the distance between the camera module and the second side frame is less than the distance between the camera module and the first side frame.

17. The electronic device according to any one of claims 8 to 13, characterized in that, The electronic device further includes a fifth antenna unit and a sixth antenna unit. The fifth antenna unit includes a fifth feed and a fifth antenna radiator electrically connected to the fifth feed. At least a portion of the fifth antenna radiator is located in the first region and on the side of the first antenna radiator facing the top frame. The fifth antenna radiator supports a ninth frequency band and a tenth frequency band under the excitation of the fifth feed. The ninth frequency band is located in the low-frequency band, and the tenth frequency band is located in the high-frequency band or ultra-high-frequency band. The sixth antenna unit includes a sixth feed and a sixth antenna radiator electrically connected to the sixth feed. The sixth antenna radiator is located in the second region and on the side of the third antenna radiator away from the top frame. The sixth antenna radiator supports an eleventh frequency band and a twelfth frequency band under the excitation of the sixth feed. The eleventh frequency band and the twelfth frequency band are different WIFI frequency bands.

18. The electronic device according to any one of claims 1 to 6, characterized in that, The electronic device further includes a seventh antenna unit and an eighth antenna unit. The seventh antenna unit includes a seventh feed and a seventh antenna radiator electrically connected to the seventh feed. The seventh antenna radiator is disposed on the top frame. Under the excitation of the seventh feed, the seventh antenna radiator supports a thirteenth frequency band and a fourteenth frequency band. The thirteenth frequency band is the GPS frequency band, and the fourteenth frequency band is located in the high frequency band or ultra-high frequency band. The eighth antenna unit includes an eighth feed and an eighth antenna radiator electrically connected to the eighth feed. The eighth antenna radiator is disposed on the top frame. Under the excitation of the eighth feed, the eighth antenna radiator supports a fifteenth frequency band and a sixteenth frequency band. The fifteenth frequency band is located in the mid frequency band, and the sixteenth frequency band is located in the high frequency band or ultra-high frequency band.

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