Electronic device

Abstract

A frame comprises a top edge, a first side edge, a bottom edge and a second side edge which are sequentially connected end to end, the top edge and the bottom edge are oppositely arranged, and the first side edge and the second side edge are oppositely arranged; at least part of the first Wi-Fi antenna unit is arranged at the position, close to the top edge, of the first side edge; the second Wi-Fi antenna unit is arranged in the area, close to the top edge, of the second side edge, and the second Wi-Fi antenna unit is located outside the horizontal screen holding area and the vertical screen holding area on the second side edge, so that the Wi-Fi signal quality of the electronic equipment in the horizontal screen holding scene and the vertical screen holding scene is improved. The invention provides the electronic equipment compatible with the efficiency, the antenna number and the limited space of the antenna in various holding scenes.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an electronic device. Background Art

[0002] As the demand for communication functions of electronic devices increases, the demand for the number and types of antennas on electronic devices increases. However, the space on electronic devices is limited, and how to make the antennas compatible with the efficiency, number and limited space of antennas in various holding scenarios has become a technical problem that needs to be solved. Summary of the invention

[0003] The present application provides an electronic device that is compatible with antenna efficiency, antenna quantity and limited space in various holding scenarios.

[0004] An electronic device provided in an embodiment of the present application includes:

[0005] A frame, comprising a top edge, a first side edge, a bottom edge and a second side edge connected end to end in sequence, wherein the top edge is arranged opposite to the bottom edge, and the first side edge is arranged opposite to the second side edge; and

[0006] An antenna assembly, the antenna assembly comprising:

[0007] a first Wi-Fi antenna unit, at least a portion of which is disposed at a position of the first side edge close to the top edge; and

[0008] The second Wi-Fi antenna unit is arranged in an area of ​​the second side close to the top edge, and the second Wi-Fi antenna unit is located outside the horizontal screen holding area and the vertical screen holding area on the second side, thereby improving the Wi-Fi signal quality of the electronic device in the horizontal screen holding and vertical screen holding scenarios.

[0009] The present application designs that at least part of the first Wi-Fi antenna unit is arranged at a position of the first side close to the top edge, and the second Wi-Fi antenna unit is arranged at an area of ​​the second side close to the top edge, and the second Wi-Fi antenna unit is located outside the horizontal screen hand-holding area and the vertical screen hand-holding area on the second side. On the one hand, the distance between the first Wi-Fi antenna unit and the second Wi-Fi antenna unit is increased to increase the isolation of the dual Wi-Fi antenna units and reduce the correlation coefficient of the dual Wi-Fi antenna units; on the other hand, at least the position layout of the second Wi-Fi antenna unit ensures that the hand does not block the second Wi-Fi antenna unit when the screen is held in horizontal mode, thereby ensuring the Wi-Fi signal quality when the screen is held in horizontal mode; the position layout of the first Wi-Fi antenna unit and the second Wi-Fi antenna unit ensures that the hand does not block the second Wi-Fi antenna unit when the screen is held in vertical mode, thereby ensuring the Wi-Fi signal quality when the screen is held in vertical mode, that is, the Wi-Fi signal quality of the electronic device in the horizontal screen holding and vertical screen holding scenarios is improved, and the efficiency of the Wi-Fi antenna in various holding scenarios, the number of antennas and the limited space are compatible. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments are briefly introduced below.

[0011] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0012] Figure 2 is a schematic diagram of the exploded structure of an electronic device provided in an embodiment of the present application;

[0013] Figure 3 is a structural schematic diagram of the layout of antenna components on an electronic device provided in an embodiment of the present application;

[0014] Figure 4 is a schematic diagram of the layout of the first Wi-Fi antenna unit and the second Wi-Fi antenna unit provided in an embodiment of the present application;

[0015] Figure 5 yes Figure 4 A schematic diagram of the structure of a first Wi-Fi antenna unit is provided;

[0016] Figure 6 yes Figure 4 A schematic diagram of the structure of a second Wi-Fi antenna unit is provided;

[0017] Figure 7 is a schematic diagram of the layout of the side antenna unit provided in an embodiment of the present application;

[0018] Figure 8 is a structural schematic diagram of a side antenna unit provided in an embodiment of the present application;

[0019] Fig. 9 is a structural schematic diagram of a second positioning antenna unit provided in an embodiment of the present application;

[0020] Fig.10 This is a schematic diagram of the structure of the second low-frequency antenna unit provided in the embodiment of the present application. Figure 1 ;

[0021] Fig.11 is a structural schematic diagram of a first tuning circuit provided in an embodiment of the present application;

[0022] Fig.12 This is a schematic diagram of the structure of the second low-frequency antenna unit provided in the embodiment of the present application. Figure 2 ;

[0023] Fig.13a is a schematic structural diagram of a third low-frequency antenna unit provided in an embodiment of the present application;

[0024] Fig.13b It is a structural schematic diagram of a side antenna unit and a third low-frequency antenna unit provided in an embodiment of the present application;

[0025] Fig.14 is a schematic diagram of the structure of three low-frequency antenna units provided in an embodiment of the present application;

[0026] Fig.15 It is a schematic diagram of the layout of the first switching mode of the four medium and high frequency antenna units provided in the embodiment of the present application;

[0027] Fig.16 is a schematic structural diagram of a first medium and high frequency antenna unit provided in an embodiment of the present application;

[0028] Fig.17 is a schematic structural diagram of a second medium and high frequency antenna unit provided in an embodiment of the present application;

[0029] Fig.18 is a structural schematic diagram of a third medium and high frequency antenna unit provided in an embodiment of the present application;

[0030] Fig.19 is a schematic structural diagram of a fourth medium and high frequency antenna unit provided in an embodiment of the present application;

[0031] Fig. 20 It is a layout diagram of a switching method of three medium and high frequency antenna units provided in an embodiment of the present application;

[0032] Fig.21 is a schematic diagram of the layout of the second switching method of the four medium and high frequency antenna units provided in an embodiment of the present application;

[0033] Fig. 22is a schematic diagram of the layout of four high-frequency antenna units provided in an embodiment of the present application;

[0034] Fig.23 This is the directional diagram of the first Wi-Fi antenna unit provided in the embodiment of the present application;

[0035] Fig.24 is a directional diagram of a second Wi-Fi antenna unit provided in an embodiment of the present application;

[0036] Fig.25 is a directional diagram when the second Wi-Fi antenna unit provided in the embodiment of the present application is located at the position where the third high-frequency antenna unit is located;

[0037] Fig.26 It is a comparison diagram of the envelope correlation coefficient between the first Wi-Fi antenna unit and the second Wi-Fi antenna unit provided in an embodiment of the present application, and the envelope correlation coefficient between the second Wi-Fi antenna unit and the first Wi-Fi antenna unit when the second Wi-Fi antenna unit is located at the position of the third high-frequency antenna unit.

[0038] Description of Figure Numbers:

[0039] Electronic device 1000; antenna assembly 100; display screen 200; middle frame 300; back cover 400; middle plate 310; frame 320; top edge 321; first side edge 322; bottom edge 323; second side edge 324; first Wi-Fi antenna unit ANT-9; second Wi-Fi antenna unit ANT-10; horizontal screen grip area Y1; first Wi-Fi main radiator 92; first Wi-Fi parasitic radiator 93; first Wi-Fi signal source 91; first grounding point A1; first feeding point A2; first free end A3; second free end A4; second grounding point A5; first isolation capacitor C99; first Wi-Fi matching circuit M9; first a detection circuit 94; a second Wi-Fi signal source 101; a second Wi-Fi radiator 102; a second Wi-Fi matching circuit M10; a first circuit board 501; a battery 502; a second circuit board 503; a side antenna unit ANT-2; a side radiator 21; a side signal source 22; a side matching circuit M2; a second positioning antenna unit ANT-8; a second positioning radiator 81; a second positioning signal source 82; a second positioning matching circuit M8; a key setting area Y2; a second low-frequency antenna unit ANT-0; a third low-frequency antenna unit ANT-1; a second low-frequency radiator 201; a second low-frequency signal source 202; a second low-frequency matching circuit M0; a A tuning circuit SW0; a third low-frequency radiator 11; a third low-frequency signal source 12; a third low-frequency matching circuit M1; a second tuning circuit SW1; a first medium-high frequency antenna unit ANT-3; a second medium-high frequency antenna unit ANT-4; a third medium-high frequency antenna unit ANT-5; a fourth medium-high frequency antenna unit ANT-6; a first medium-high frequency main radiator 31; a first medium-high frequency parasitic radiator 32; a first medium-high frequency signal source 33; a third grounding point G1; a second feeding point G2; a third free end G3; a fourth free end G4; a fourth grounding point G5; a second isolation capacitor C33; a first medium-high frequency matching circuit M3; a second detection circuit 34; a second medium-high frequency main radiator 4 1; second medium and high frequency parasitic radiator 42; second medium and high frequency signal source 43; fifth grounding point H1; third feeding point H2; fifth free end H3; sixth free end H4; sixth grounding point H5; second medium and high frequency matching circuit M4; third detection circuit 44; third medium and high frequency main radiator 51; third medium and high frequency parasitic radiator 52; third medium and high frequency signal source 53; third medium and high frequency matching circuit M5; fourth medium and high frequency radiator 61; fourth medium and high frequency signal source 62; fourth medium and high frequency matching circuit M6; first switching module Q1; third high frequency antenna unit ANT-7; fourth high frequency antenna unit ANT-8; second switching module Q2; NFC antenna ANT-11. DETAILED DESCRIPTION

[0040] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in the present application are only a part of the embodiments, not all of the embodiments. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present application.

[0041] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0042] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example: a component or device including one or more parts is not limited to the one or more parts listed, but optionally includes one or more parts that are not listed but inherent to the exemplified product, or one or more parts that it should have based on the described function.

[0043] See also Figure 1 , Figure 1 The following is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of the present application. The electronic device 1000 includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a computer, a wearable device, a drone, a robot, a digital camera, and other devices with communication functions. The present embodiment of the present application is described using a mobile phone as an example, and other electronic devices may refer to this embodiment.

[0044] See also Figure 2 , the electronic device 1000 includes an antenna assembly 100. The antenna assembly 100 can improve antenna efficiency.

[0045] See also Figure 2, taking the electronic device 1000 as a mobile phone as an example, the working environment of the antenna assembly 100 is illustrated. The electronic device 1000 includes a display screen 200, a middle frame 300 and a back cover 400 arranged in sequence along the thickness direction. Among them, the middle frame 300 includes a middle plate 310 and a frame 320 surrounding the side of the middle plate 310. Of course, in other embodiments, the electronic device 1000 may not have a middle plate 310. The display screen 200, the middle plate 310 and the back cover 400 are stacked in sequence, and a receiving space is formed between the display screen 200 and the middle plate 310, and between the middle plate 310 and the back cover 400 to accommodate components such as a main board, a camera module, a receiver module, a battery, and various sensors. One side of the frame 320 is surrounded by the edge of the display screen 200, and the other side of the frame 320 is surrounded by the edge of the back cover 400 to form a complete appearance structure of the electronic device 1000. In this embodiment, the frame 320 and the middle plate 310 are an integral structure, and the frame 320 and the back cover 400 may be separate structures. The above is the working environment of the antenna assembly 100 taking a mobile phone as an example, but the antenna assembly 100 of the present application is not limited to the above working environment.

[0046] See also Figure 3 The frame 320 includes a top edge 321, a first side edge 322, a bottom edge 323 and a second side edge 324 connected end to end. The top edge 321 is disposed opposite to the bottom edge 323, and the first side edge 322 is disposed opposite to the second side edge 324.

[0047] The top edge 321 is the side away from the ground when the user holds the electronic device 1000 in use, and the bottom edge 323 is the side facing the ground when the user holds the electronic device 1000 in use.

[0048] The frame 320 is roughly rectangular. In an optional embodiment, the top edge 321 and the bottom edge 323 are the short sides of the frame, and the first side edge 322 and the second side edge 324 are the long sides of the frame. In other embodiments, the electronic device 1000 can also be a foldable electronic device 1000, the top edge 321 and the bottom edge 323 are the short sides of the frame when unfolded, and the first side edge 322 and the second side edge 324 are the long sides of the frame when unfolded. In other embodiments, the top edge 321 and the bottom edge 323 can also be the long sides of the frame, and the first side edge 322 and the second side edge 324 can also be the short sides of the frame. The length of the short side is less than the long side of the long side. In addition, the lengths of the top edge 321 and the first side edge 322 can also be the same.

[0049] See also Figure 4 The antenna assembly 100 includes a first Wi-Fi antenna unit ANT-9 and a second Wi-Fi antenna unit ANT-10. At least a portion of the first Wi-Fi antenna unit ANT-9 is disposed at a position of the first side edge 322 close to the top edge 321.

[0050] Optionally, the first Wi-Fi antenna unit ANT-9 may be entirely disposed at a position of the first side edge 322 close to the top edge 321. Furthermore, the first Wi-Fi antenna unit ANT-9 may be disposed outside the horizontal screen holding area on the first side edge 322, so that when the screen is held in horizontal mode, the first Wi-Fi antenna unit ANT-9 will not be blocked, thereby ensuring the Wi-Fi signal quality when the screen is held in horizontal mode.

[0051] Optionally, a portion of the first Wi-Fi antenna unit ANT-9 may be disposed at a position of the first side edge 322 close to the top edge 321 .

[0052] Optionally, the first Wi-Fi antenna unit ANT-9 is used to support at least one of Wi-Fi 2.4G and Wi-Fi 5G.

[0053] The second Wi-Fi antenna unit ANT-10 is disposed in an area of ​​the second side edge 324 close to the top edge 321. The second Wi-Fi antenna unit ANT-10 is located outside the horizontal screen holding area and the vertical screen holding area on the second side edge 324, thereby improving the Wi-Fi signal quality of the electronic device 1000 in the horizontal screen holding and vertical screen holding scenarios.

[0054] See also Figure 4 , the horizontal screen gripping area Y1 refers to the area where the hand holds when the screen is in horizontal mode. For example, the horizontal screen gripping area Y1 on the first side edge 322 refers to the area on the first side edge 322 where the distance from the top edge 321 is less than a preset distance. The preset distance includes but is not limited to 20 mm, 15 mm, or 25 mm, etc.

[0055] The vertical screen holding area is generally the portion of the electronic device 1000 close to the bottom edge 323, and the second Wi-Fi antenna unit ANT-10 is arranged in the area of ​​the second side edge 324 close to the top edge 321, that is, outside the vertical screen holding area. In this way, the electronic device 1000 can maintain good Wi-Fi signal quality in both horizontal and vertical screen holding scenarios.

[0056] Optionally, the area outside the horizontal screen gripping area Y1 on the second side edge 324 refers to an area on the first side edge 322 whose distance from the top edge 321 is greater than a preset distance. The preset distance includes but is not limited to 20 mm, 15 mm, 25 mm, etc.

[0057] In the embodiment of the present application, the second Wi-Fi antenna unit ANT-10 is arranged on the second side 324 close to the top edge 321, and is located outside the horizontal screen hand-holding area Y1 on the second side 324, so that the hand will not block the second Wi-Fi antenna unit ANT-10 when the screen is held in horizontal mode, thereby ensuring the Wi-Fi signal quality when the screen is held in horizontal mode.

[0058] Among them, the position layout of the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10 realizes the dual Wi-Fi antenna layout on the electronic device 1000, and ensures that the Wi-Fi signal works in the upper half of the electronic device 1000. Furthermore, the working mode of the dual Wi-Fi antennas on the electronic device 1000 includes but is not limited to switching the dual Wi-Fi antennas to work separately, or the dual Wi-Fi antennas work simultaneously. For example, when the electronic device 1000 is held in portrait mode, the dual Wi-Fi antennas work simultaneously, and working simultaneously means sending and receiving Wi-Fi signals at the same time. When the electronic device 1000 is held in landscape mode, the electronic device 1000 switches the Wi-Fi antenna with stronger signal strength to work separately according to the signal strength of the dual Wi-Fi antennas, and working separately means sending and receiving Wi-Fi signals separately.

[0059] The present application designs that at least a portion of the first Wi-Fi antenna unit ANT-9 is disposed at a position near the top edge 321 of the first side edge 322, and the second Wi-Fi antenna unit ANT-10 is disposed at an area near the top edge 321 of the second side edge 324, and the second Wi-Fi antenna unit ANT-10 is located outside the horizontal screen gripping area Y1 on the second side edge 324. On the one hand, the distance between the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10 is increased to increase the isolation of the dual Wi-Fi antenna units, thereby reducing the Correlation coefficient; on the other hand, at least the position layout of the second Wi-Fi antenna unit ANT-10 will not be blocked by the hand when the screen is held in landscape mode, thereby ensuring the quality of the Wi-Fi signal when the screen is held in landscape mode; the position layout of the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10 will not be blocked by the hand when the screen is held in portrait mode, thereby ensuring the quality of the Wi-Fi signal when the screen is held in portrait mode, and being compatible with the efficiency of the Wi-Fi antenna in various holding scenarios, the number of antennas and limited space.

[0060] In one embodiment, see Figure 4 , the first Wi-Fi antenna unit ANT-9 is arranged at the corner of the first side edge 322 and the top edge 321. In this embodiment, it is ensured that the Wi-Fi frequency band works in the upper part of the electronic device 1000, and the space on the first side edge 322 and the top edge 321 is not occupied. The space on the first side edge 322 and the top edge 321 is reserved to set low-frequency, medium-high-frequency and high-frequency antennas on the first side edge 322, and to set GPS, medium-high-frequency antennas, etc. on the top edge 321, which is conducive to the multi-side layout of medium-high-frequency antennas and high-frequency antennas on the frame.

[0061] The present application does not specifically limit the antenna types of the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10. Optionally, the first Wi-Fi antenna unit ANT-9 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a port-to-port antenna, a T-type antenna, etc.

[0062] See also Figure 5 In this embodiment, the first Wi-Fi antenna unit ANT-9 is a port-to-port antenna. Specifically, the first Wi-Fi antenna unit ANT-9 includes a first signal source, a first radiator, and a second radiator. In order to facilitate the distinction from subsequent radiators, in this application, the first radiator is defined as the first Wi-Fi main radiator 92, and the second radiator is the first Wi-Fi parasitic radiator 93. The first signal source is the first Wi-Fi signal source 91.

[0063] The radiator is a port for the antenna unit to send and receive radio frequency signals. The radio frequency signal is transmitted in the air medium in the form of an electromagnetic wave signal. The present application does not specifically limit the material of the radiator. Optionally, the material of the radiator is a conductive material, including but not limited to conductive materials such as metals and alloys.

[0064] The present application does not specifically limit the shape of the radiator. For example, the shape of the radiator includes but is not limited to a strip, a sheet, a rod, a coating, a film, etc. Figure 5 The radiator shown is only an example and does not limit the shape of the radiator provided in the present application. In the present embodiment, the radiators are all in the shape of strips. The present application does not limit the extension trajectory of the radiator. Optionally, the radiator may extend along a straight line, or along a curve, or along a bending line. In the present embodiment, the radiator is in the shape of a straight line. In other embodiments, the radiator may also extend along a trajectory such as a bending line. The above-mentioned radiator may be a line with uniform width on the extension trajectory, or it may be a strip with unequal width such as a gradient width and a widened area.

[0065] The present application does not specifically limit the form of the radiator. Optionally, the form of the radiator includes but is not limited to a metal frame 320, a metal frame embedded in the plastic frame 320, a metal radiator located in or on the surface of the frame 320, a flexible circuit board antenna formed on a flexible circuit board (Flexible Printed Circuit board, FPC), a laser direct structured antenna by laser direct structure (Laser Direct Structuring, LDS), a printed direct structured antenna by printing direct structure (Print Direct Structuring, PDS), a conductive sheet antenna (such as a metal bracket antenna), etc. In the present application, the radiator is taken as an example of a metal frame embedded in the plastic frame 320. The radiator of the subsequent antenna unit can also refer to the first Wi-Fi main radiator 92.

[0066] See also Figure 5 , the first Wi-Fi main radiator 92 includes a first grounding point A1, a first feeding point A2 and a first free end A3 arranged in sequence. The first signal source 91 is electrically connected to the first feeding point A2. The first free end A3 is an end disconnected from other structures. The first grounding point A1 is used to electrically connect to the reference ground system, wherein the electrical connection method includes but is not limited to direct connection or indirect connection.

[0067] The first signal source 91 includes but is not limited to a radio frequency transceiver chip, etc. The first signal source 91 is used to transmit a radio frequency signal (radio frequency current). After the radio frequency signal is transmitted to the first Wi-Fi main radiator 92, it can excite the first Wi-Fi main radiator 92 to generate a resonant current and form a resonant mode to support the frequency band corresponding to the resonant current.

[0068] In the embodiment of the present application, the first signal source 91 is disposed on the mainboard. The electrical connection method between the first signal source 91 and the first feeding point A2 includes but is not limited to direct welding, or indirect connection through a coaxial line, a microstrip line, a conductive spring, a conductive adhesive, etc. Specifically, the first signal source 91 is electrically connected to the first feeding point A2 through a feeding spring (conductive spring) disposed on the mainboard.

[0069] The first signal source 91 is used to excite the first Wi-Fi main radiator 92 to form a resonance mode supporting the Wi-Fi 2.4G frequency band. The resonance current of the Wi-Fi 2.4G frequency band is mainly distributed between the first ground point A1 and the first free end A3 of the first Wi-Fi main radiator 92.

[0070] The first Wi-Fi main radiator 92 and the signal source provided in this embodiment are IFA antennas. The resonant mode of the Wi-Fi 2.4G band is the 1 / 4 wavelength mode corresponding to the Wi-Fi 2.4G band. The 1 / 4 wavelength mode is the ground state mode of the IFA antenna and has a relatively high efficiency to ensure that the Wi-Fi 2.4G band has a relatively high efficiency. From another perspective, the electrical length of the first Wi-Fi main radiator 92 is close to the 1 / 4 wavelength of the Wi-Fi 2.4G band.

[0071] The electrical length described in this application can satisfy the following formula:

[0072]

[0073] Where L is the physical length, a is the transmission time of the electrical or electromagnetic signal in the medium, and b is the transmission time in free space.

[0074] See also Figure 5 In this embodiment, the first signal source 91 is also used to excite the first Wi-Fi main radiator 92 and the first Wi-Fi parasitic radiator 93 to generate dual waves in the Wi-Fi 5G frequency band, wherein the current of the first resonance mode of the Wi-Fi 5G frequency band is mainly distributed between the first feeding point A2 and the first free end A3. The current of the second resonance mode of the Wi-Fi 5G frequency band is mainly distributed between the second free end A4 and the second grounding point A5.

[0075] From another perspective, the electrical length between the first feeding point A2 and the first free end A3 on the first Wi-Fi main radiator 92 is close to between the 1 / 4 wavelength mode and the 1 / 8 wavelength mode of the Wi-Fi 5G frequency band; the electrical length between the second free end A4 and the second grounding point A5 on the first Wi-Fi parasitic radiator 93 is close to the 1 / 4 wavelength of the Wi-Fi 5G frequency band.

[0076] In this implementation, a dual-wave resonance supporting the Wi-Fi 5G band is formed on the first Wi-Fi antenna unit ANT-9 to meet the wider bandwidth requirements of the Wi-Fi 5G band and cover the Wi-Fi 5G band.

[0077] Optionally, the first Wi-Fi main radiator 92 is disposed at a corner between the top edge 321 and the first side edge 322 , and the first Wi-Fi parasitic radiator 93 is disposed at the top edge 321 .

[0078] The first Wi-Fi parasitic radiator 93 includes a second free end A4 and a second grounding point A5 which are spaced apart from each other. The second free end A4 can refer to the first free end A3, and the second grounding point A5 can refer to the first grounding point A1.

[0079] A first coupling gap is formed between the first free end A3 and the second free end A4. The first Wi-Fi main radiator 92 and the first Wi-Fi parasitic radiator 93 are coupled through the first coupling gap to form a mouth-to-mouth antenna.

[0080] The mouth-to-mouth antenna in the present application can generate multiple resonant modes to support multiple frequency bands. Compared with multiple antenna units that individually support frequency bands, some radiators in the mouth-to-mouth antenna combination are shared. For example, the radiator of the first feeding point A2 and the first free end A3 is a shared radiator for the Wi-Fi 2.4G band and the Wi-Fi 5G band. By sharing the radiator, the total length of the radiator can be shortened and the space occupied can be reduced.

[0081] In the process of satisfying the Specific Absorption Rate (SAR) standard of the human body to electromagnetic waves, the electronic device 1000 generally achieves the SAR value reaching the standard by controlling the power backoff of the antenna unit when the human body approaches the antenna unit of the electronic device 1000. How to implement SAR hotspot coverage detection on the electronic device 1000 is a technical problem that needs to be solved.

[0082] In the implementation manner of the present application, the first Wi-Fi main radiator 92 is also used as a detection electrode for detecting SAR hotspot coverage. The specific implementation manner is as follows:

[0083] Optional, see Figure 4 and Figure 5 , a first break is provided on the first side 322. The first break is located on the side of the first grounding point A1 away from the first free end A3. The first break and the first coupling gap physically disconnect the two ends of the first Wi-Fi main radiator 92 from other conductive structures.

[0084] The first grounding point A1 is grounded through a first isolation capacitor C99. The first isolation capacitor C99 is a large capacitor. The first isolation capacitor C99 is a DC isolation capacitor that isolates a DC signal or a small AC signal. The first isolation capacitor C99 is an open circuit for a DC signal or a small AC signal.

[0085] For further information, see Figure 5The first Wi-Fi antenna unit ANT-9 also includes a first Wi-Fi matching circuit M9 provided between the first feeding point A2 and the first signal source 91. The first Wi-Fi matching circuit M9 is electrically connected between the first feeding point A2 of the first Wi-Fi main radiator 92 and the first Wi-Fi signal source 91. The first Wi-Fi matching circuit M9 includes at least one of a capacitor and an inductor. The first Wi-Fi matching circuit M9 helps the first Wi-Fi signal source 91 to excite a resonance mode of the Wi-Fi 2.4G and / or 5G frequency band on the first Wi-Fi main radiator 92 by adjusting the impedance matching between the feeding point port of the first Wi-Fi main radiator 92 and the port of the first Wi-Fi signal source 91.

[0086] The device of the first Wi-Fi matching circuit M9 electrically connected to the first Wi-Fi main radiator 92 is a capacitor device, which can be used as an isolation capacitor that is disconnected for a DC signal or a small AC signal.

[0087] Among them, since one end of the first Wi-Fi main radiator 92 is the first free end A3, and the other end of the first Wi-Fi main radiator 92 is the first slit, the first grounding point A1, the first feeding point A2 and other structures of the first Wi-Fi main radiator 92 are electrically disconnected relative to the DC signal or the small AC signal, so that the first Wi-Fi main radiator 92 is in a suspended state relative to the DC signal or the small AC signal.

[0088] See also Figure 5 , the electronic device 1000 further includes a first detection circuit 94. The first detection circuit 94 is electrically connected to the first Wi-Fi main radiator 92, and is used to detect whether the subject to be detected is close to the first Wi-Fi main radiator 92 and the area near the first Wi-Fi main radiator 92. Optionally, the first detection circuit 94 can be electrically connected to the first grounding point A1 or the first feeding point A2.

[0089] In the present application, the first Wi-Fi main radiator 92 is disposed at a corner, so that it can be used for proximity detection within a certain angle range corresponding to the top edge 321 and the first side edge 322 .

[0090] Furthermore, the first Wi-Fi main radiator 92 and the first detection circuit 94 form a proximity sensor for detecting whether the subject to be detected is approaching. Furthermore, the first detection circuit 94 is electrically connected to the radiator and is provided with a large inductor (for example, the inductor is 82nH) to prevent high-frequency AC signals from flowing to the radiator.

[0091] When a finger approaches the first Wi-Fi main radiator 92, the first Wi-Fi main radiator 92 is suspended for the proximity sensor. The first Wi-Fi main radiator 92 senses the capacitance change caused by the approach of the human body to determine the approach state of the human body. After determining that the human body is approaching, the controller reduces the transmission power of the first Wi-Fi antenna unit ANT-9 and / or the antenna unit near the first Wi-Fi antenna unit ANT-9, thereby achieving the purpose of intelligent SAR reduction.

[0092] The above is an implementation of the first Wi-Fi main radiator 92 also serving as a proximity sensor for detecting whether the subject to be measured is approaching. In other implementations, other radiators may be suspended to serve as proximity sensors for detecting whether the subject to be measured is approaching.

[0093] Optionally, the second Wi-Fi antenna unit ANT-10 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0094] In this implementation, please refer to Figure 6 The second Wi-Fi antenna unit ANT-10 is an external IFA antenna. Specifically, the second Wi-Fi antenna unit ANT-10 includes a second Wi-Fi signal source 101 and a second Wi-Fi radiator 102.

[0095] See also Figure 6 , one end of the second Wi-Fi radiator 102 is a seventh grounding point B1 for grounding, and the other end of the second Wi-Fi radiator 102 is a seventh free end B3 disconnected from other conductive structures. The fourth feeding point B2 of the second Wi-Fi radiator 102 is located between the seventh grounding point B1 and the seventh free end B3, and is electrically connected to the second Wi-Fi signal source 101. The seventh grounding point B1 of the second Wi-Fi radiator 102 is located on a side close to the top edge 321 relative to the seventh free end B3.

[0096] The second Wi-Fi signal source 101 is used to excite the second Wi-Fi radiator 102 to form a resonant mode that supports the Wi-Fi 2.4G frequency band and the Wi-Fi 5G frequency band. Among them, the current of the resonant mode of the Wi-Fi 2.4G frequency band is mainly distributed between the seventh grounding point B1 of the second Wi-Fi radiator 102 and the fourth feeding point B2 of the second Wi-Fi radiator 102. This resonant mode can also be called a left-hand mode, and the left-hand mode is between the 1 / 4 wavelength mode and the 1 / 8 wavelength mode. The current of the resonant mode of the Wi-Fi 5G frequency band is mainly distributed between the fourth feeding point B2 of the second Wi-Fi radiator 102 and the seventh free end B3 of the second Wi-Fi radiator 102. This mode is a 1 / 4 wavelength mode. In short, the electrical length between the fourth feeding point B2 of the second Wi-Fi radiator 102 and the seventh free end B3 of the second Wi-Fi radiator 102 is close to 1 / 4 wavelength of the Wi-Fi 5G frequency band.

[0097] For further information, see Figure 6 The second Wi-Fi antenna unit ANT-10 further includes a second Wi-Fi matching circuit M10. The second Wi-Fi matching circuit M10 is electrically connected between the fourth feeding point B2 of the second Wi-Fi radiator 102 and the second Wi-Fi signal source 101. The second Wi-Fi matching circuit M10 includes at least one of a capacitor and an inductor. The second Wi-Fi matching circuit M10 helps the second Wi-Fi signal source 101 to excite a resonant mode of the Wi-Fi 2.4G and / or 5G frequency band on the second Wi-Fi radiator 102 by adjusting the impedance matching between the fourth feeding point B2 port of the second Wi-Fi radiator 102 and the port of the second Wi-Fi signal source 101.

[0098] In one embodiment, see Figure 4 The electronic device 1000 further includes a first circuit board 501 and a battery 502 disposed in the frame 320. The first circuit board 501 is located between the top edge 321 and the battery 502.

[0099] Furthermore, the electronic device 1000 further includes a second circuit board 503. The first circuit board 501, the battery 502 and the second circuit board 503 are sequentially arranged between the top side 321 and the bottom side 323. The first circuit board 501 is a main board, and the second circuit board 503 is a sub-board.

[0100] See also Figure 7, the antenna assembly 100 also includes a side antenna unit ANT-2. The side antenna unit ANT-2 is arranged on the first side 322. A portion of the side antenna unit ANT-2 is arranged adjacent to the first circuit board 501. Another portion of the side antenna unit ANT-2 is adjacent to the battery 502. Optionally, a portion of the radiator of the side antenna unit ANT-2 is arranged adjacent to the first circuit board 501, so as to facilitate electrical connection with the signal source on the first circuit board 501, and most of the radiators of the side antenna extend to a position adjacent to the battery 502 to utilize the position of the frame 320 next to the battery 502, thereby avoiding waste of the position of the frame 320 next to the battery 502 and realizing the waist antenna design of the electronic device 1000.

[0101] The present application does not specifically limit the antenna type of the side antenna unit ANT-2. Optionally, the side antenna unit ANT-2 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0102] See also Figure 8 In this embodiment, the side antenna unit ANT-2 is an external IFA antenna. The radiator of the side antenna unit ANT-2 is a side radiator 21. The signal source of the side antenna unit ANT-2 is a side signal source 22.

[0103] One end of the side radiator 21 is an eighth grounding point C1 for grounding, and the other end of the side radiator 21 is an eighth free end C2 disconnected from other conductive structures. The fifth feeding point C3 of the side radiator 21 is located between the eighth grounding point C1 and the eighth free end C2, and is electrically connected to the side signal source 22. The fifth feeding point C3 and the eighth free end C2 of the side radiator 21 are located near the first circuit board 501. The eighth grounding point C1 of the side radiator 21 extends to the side of the battery 502. The eighth grounding point C1 of the side radiator 21 can be physically returned to the ground, that is, the eighth grounding point C1 of the side radiator 21 can be integrally connected to the reference ground on the middle board.

[0104] For further information, see Figure 8 The side antenna unit ANT-2 also includes a side matching circuit M2. The side matching circuit M2 is electrically connected between the fifth feeding point C3 of the side radiator 21 and the side signal source 22. The side matching circuit M2 includes at least one of a capacitor and an inductor. The side matching circuit M2 helps the side signal source 22 to excite the required supported resonance mode on the side radiator 21 by adjusting the impedance matching between the fifth feeding point C3 port of the side radiator 21 and the port of the side signal source 22.

[0105] The present application does not make any specific limitation on the frequency band supported by the side antenna unit ANT-2. Optionally, the frequency band supported by the side antenna unit ANT-2 includes a low frequency, or a GPS-L5 frequency band, etc.

[0106] In an alternative embodiment, see Figure 7 , the side antenna unit ANT-2 is a first positioning antenna unit. The antenna assembly 100 also includes a second positioning antenna unit ANT-8 disposed on the top edge 321. The first positioning antenna unit ANT-2 located on the second side edge 324 and the second positioning antenna unit ANT-8 located on the top edge 321 form a dual GPS antenna solution to improve positioning accuracy and positioning speed.

[0107] Optionally, the frequency band supported by the first positioning antenna unit is the GPS-L5 frequency band, and the frequency band supported by the second positioning antenna unit ANT-8 is the GPS-L1 frequency band.

[0108] The side signal source 22 is used to excite the side radiator 21 to form a resonant mode supporting the GPS-L5 frequency band. The current of the resonant mode of the GPS-L5 frequency band is mainly distributed between the eighth grounding point C1 of the side radiator 21 and the eighth free end C2 of the side radiator 21, and this resonant mode is a 1 / 4 wavelength mode. In other words, the electrical length between the eighth grounding point C1 of the side radiator 21 and the eighth free end C2 of the side radiator 21 is close to 1 / 4 wavelength.

[0109] The present application does not specifically limit the antenna type of the second positioning antenna unit ANT-8. Optionally, the second low-frequency antenna unit includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, and the like.

[0110] In this embodiment, please refer to Fig. 9 The second positioning antenna unit ANT-8 is an external IFA antenna. The radiator of the second positioning antenna unit ANT-8 is a second positioning radiator 81. The signal source of the second positioning antenna unit ANT-8 is a second positioning signal source 82.

[0111] See also Fig. 9 , one end of the second positioning radiator 81 is a ninth grounding point D1 for grounding, and the other end of the second positioning radiator 81 is a ninth free end D2 disconnected from other conductive structures. Further, the ninth free end D2 of the second positioning radiator 81 is adjacent to the second grounding point A5 of the first Wi-Fi parasitic radiator 93 and there is an insulating gap between them. The sixth feeding point D3 of the second positioning radiator 81 is located between the ninth grounding point D1 and the ninth free end D2, and is electrically connected to the second positioning antenna signal source.

[0112] For further information, see Fig. 9 The second positioning antenna unit ANT-8 also includes a second positioning matching circuit M8. The second positioning matching circuit M8 is electrically connected between the sixth feeding point D3 of the second positioning radiator 81 and the second positioning signal source 82. The second positioning matching circuit M8 includes at least one of a capacitor and an inductor. The second positioning matching circuit M8 helps the second positioning signal source 82 to excite the required supported resonance mode on the second positioning radiator 81 by adjusting the impedance matching between the sixth feeding point D3 port of the second positioning radiator 81 and the port of the second positioning signal source 82.

[0113] The second positioning signal source 82 is used to excite the second positioning radiator 81 to form a resonant mode supporting the GPS frequency band. The current of the resonant mode of the GPS frequency band is mainly distributed between the ninth grounding point D1 of the second positioning radiator 81 and the ninth free end D2 of the second positioning radiator 81, and the resonant mode is a 1 / 4 wavelength mode. In other words, the electrical length between the ninth grounding point D1 of the second positioning radiator 81 and the ninth free end D2 of the second positioning radiator 81 is close to the 1 / 4 wavelength of the supported GPS frequency band.

[0114] In another optional implementation, the side antenna unit ANT-2 is a first low-frequency antenna unit, that is, the frequency band supported by the side antenna unit ANT-2 is a low-frequency band. In the present application, the low-frequency band is a frequency band less than 1 GHz.

[0115] Optional, see Figure 7 , the first side 322 includes a key setting area Y2. The area where the side antenna unit ANT-2 is located covers the key setting area Y2. The key setting area Y2 is used to set keys. The frequency band supported by the side antenna unit ANT-2 is a low frequency band or a GPS-L5 band.

[0116] Since some metal structures in the key are unstable and may move, the movement of the metal structure may have a greater impact on the nearby high-frequency antenna, such as a larger frequency deviation. Based on this, the embodiment of the present application sets the frequency band supported by the side antenna unit ANT-2 covering the key to a low-frequency band or a GPS-L5 band to reduce the frequency deviation problem caused by the movement of the metal structure in the key and avoid the problem of poor consistency in batch electronic devices 1000.

[0117] See also Figure 7 The antenna assembly 100 also includes a second low-frequency antenna unit ANT-0 and a third low-frequency antenna unit ANT-1.

[0118] At least a portion of the second low-frequency antenna unit ANT-0 is disposed on the second side edge 324 to excite more longitudinal currents on the reference floor, thereby improving the radiation efficiency of the second low-frequency antenna unit ANT-0. The second low-frequency antenna unit ANT-0 is located on a side of the second Wi-Fi antenna unit ANT-10 away from the bottom edge 323.

[0119] Optionally, a portion of the second low-frequency antenna unit ANT- 0 is located on the second side edge 324 , and another portion is located on the top edge 321 .

[0120] Furthermore, the present application does not specifically limit the antenna type of the second low-frequency antenna unit ANT-0. Optionally, the second low-frequency antenna unit ANT-0 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0121] Optional, see Fig.10 The second low-frequency antenna unit ANT-0 is a monopole antenna or is similar to a monopole antenna. The radiator of the second low-frequency antenna unit ANT-0 is a second low-frequency radiator 201. The signal source of the second low-frequency antenna unit ANT-0 is a second low-frequency signal source 202.

[0122] See also Fig.10 , one end of the second low-frequency radiator 201 is the seventh feeding point E3, and the other end of the second low-frequency radiator 201 is the tenth free end E2 disconnected from other conductive structures; or, one end of the second low-frequency radiator 201 is the eleventh free end E1, and the other end of the second low-frequency radiator 201 is the tenth free end E2 disconnected from other conductive structures. The distance between the seventh feeding point E3 and the tenth free end E2 is greater than the distance between the seventh feeding point E3 and the eleventh free end E1. The seventh feeding point E3 of the second low-frequency radiator 201 is electrically connected to the second low-frequency signal source 202. The seventh feeding point E3 of the second low-frequency radiator 201 is located at the top edge 321, and the tenth free end E2 of the second low-frequency radiator 201 is located at the second side edge 324. The tenth free end E2 of the second low-frequency radiator 201 is adjacent to and electrically disconnected from the seventh grounding point B1 of the second Wi-Fi radiator 102.

[0123] The second low-frequency signal source 202 is used to excite the second low-frequency radiator 201 to form a resonant mode supporting a low-frequency band. The current of the resonant mode in the low-frequency band is mainly distributed between the seventh feeding point E3 of the second low-frequency radiator 201 and the tenth free end E2 of the second low-frequency radiator 201. The electrical length between the seventh feeding point E3 of the second low-frequency radiator 201 and the tenth free end E2 of the second low-frequency radiator 201 can be close to 1 / 4 wavelength or less than 1 / 4 wavelength.

[0124] See also Fig.10 The second low-frequency antenna unit ANT-0 also includes a second low-frequency matching circuit M0. The second low-frequency matching circuit M0 is electrically connected between the seventh feeding point E3 of the second low-frequency radiator 201 and the second low-frequency signal source 202. The second low-frequency matching circuit M0 includes at least one of a capacitor and an inductor. The second low-frequency matching circuit M0 helps the second low-frequency signal source 202 to excite a resonant mode in the low-frequency band on the second low-frequency radiator 201 by adjusting the impedance matching between the port of the second low-frequency signal source 202 and the port of the second low-frequency radiator 201.

[0125] In one embodiment, see Fig.10 , the second low-frequency antenna unit ANT-0 includes a first tuning circuit SW0. The first tuning circuit SW0 is electrically connected to the radiator of the second low-frequency antenna unit ANT-0. The first tuning circuit SW0 can be electrically connected to the seventh feeding point E3 of the second low-frequency radiator 201. Optionally, the first tuning circuit SW0 is used to tune the frequency band covered by the second low-frequency antenna unit ANT-0.

[0126] Furthermore, the first tuning circuit SW0 is an impedance adjustable circuit, or an antenna switch circuit.

[0127] Optionally, the first tuning circuit SW0 includes an antenna switch and / or an adjustable capacitor.

[0128] In the first embodiment of the first tuning circuit SW0, see Fig.11 , the first tuning circuit SW0 also includes a first switch unit K1 and a plurality of first tuning branches T11. One end of the plurality of first tuning branches T11 is electrically connected to one end of the first switch unit K1, and the other end of the first switch unit K1 is electrically connected to the seventh feeding point E3 of the second low-frequency radiator 201. That is, the first switch unit K1 includes but is not limited to a transistor, a field effect transistor, etc. The other ends of the plurality of first tuning branches T11 are all grounded.

[0129] The impedance value of each first tuning branch T11 is different. For example, the plurality of first tuning branches T11 are a plurality of capacitors with different capacitance values. Alternatively, the plurality of first tuning branches T11 are a plurality of inductors with different inductance values. Alternatively, the plurality of first tuning branches T11 include a plurality of capacitors with different capacitance values, and a plurality of inductors with different inductance values. By adjusting the first switch unit K1 to be electrically connected to different devices, the equivalent electrical length of the first tuning branch T11 electrically connected to the second low-frequency radiator 201 is adjusted, thereby adjusting the size of the supported first frequency band.

[0130] In a second embodiment of the first tuning circuit SW0, the first tuning circuit SW0 includes an adjustable capacitor. One end of the adjustable capacitor is electrically connected to the seventh feeding point E3 of the second low-frequency radiator 201, and the other end is grounded. The size of the adjustable capacitor is adjustable and is used to tune the size of the supported first frequency band. The adjustable capacitor is a capacitor with an adjustable capacitance value. In this way, by adjusting the capacitance value of the capacitor, the impedance value of the first tuning circuit SW0 is adjustable, thereby adjusting the effective electrical length of the first tuning circuit SW0, further adjusting the effective electrical length of the second low-frequency radiator 201, and then adjusting the size of the supported first frequency band.

[0131] Of course, the first tuning circuit SW0 may also be a combination of the first implementation and the second implementation described above. For example, the first tuning branch T11 includes the adjustable capacitor.

[0132] For example, after the switch of the first tuning circuit SW0 is switched, the frequency band supported by the second low-frequency antenna unit ANT-0 may be the B28 frequency band, the B20 frequency band, the B5 frequency band, or the B8 frequency band.

[0133] Generally, the electrical length between the seventh feeding point E3 of the second low-frequency radiator 201 and the tenth free end E2 of the second low-frequency radiator 201 is close to 1 / 4 wavelength. For low-frequency antennas, the length of the radiator when working in 1 / 4 wavelength mode is about 50mm-70mm, and even the length of the radiator when working in 1 / 8-1 / 4 wavelength mode is about 40-50mm. However, the space on the electronic device 1000 is limited, and multiple medium and high frequency antennas and multiple high frequency antennas need to be set. In this way, reducing the number of low frequencies and shortening the length of the low-frequency radiator become technical problems that need to be solved.

[0134] In the present application, please refer to Fig.12 , the electrical length between the seventh feeding point E3 of the second low-frequency radiator 201 and the tenth free end E2 of the second low-frequency radiator 201 is less than 1 / 4 wavelength. Optionally, the second low-frequency antenna unit ANT-0 is a short low-frequency antenna unit. The electrical length of the radiator of the short low-frequency antenna unit is less than or equal to 1 / 8 wavelength of the working frequency band of the short low-frequency antenna unit and greater than or equal to 1 / 32 wavelength of the working frequency band of the short low-frequency antenna unit. In other words, the electrical length of the second low-frequency radiator 201 is less than or equal to 1 / 8 wavelength of the supported low-frequency band, and the electrical length of the second low-frequency radiator 201 is greater than or equal to 1 / 32 wavelength of the supported low-frequency band.

[0135] For example, the length of a general low-frequency radiator is about 40 mm or more, and the length of the second low-frequency radiator 201 in the embodiment of the present application is about 20 mm. The length of the second low-frequency radiator 201 in this embodiment is at least 50% shorter than that of a general low-frequency radiator ( Fig.12 The dotted part in the figure is the shortened part).

[0136] Since the size of the second low-frequency radiator 201 in this embodiment is shortened, space can be freed up to arrange the second Wi-Fi antenna radiator, thereby realizing a dual Wi-Fi antenna solution.

[0137] The following is a detailed description of how the second low-frequency radiator 201 is shortened and can support the second low frequency.

[0138] See also Fig.12 , the electronic device 1000 also includes a reference floor 340 disposed in the space surrounded by the frame 320. The reference floor 340 is roughly rectangular. Optionally, the shape and size of the reference floor 340 are similar to the shape and size of the middle plate. The reference floor 340 includes a corner point. The corner point is the corner point where the long side and the short side of the reference floor 340 intersect. Moreover, the corner point of the reference floor 340 corresponds to (for example, directly opposite) the corner portion of the frame 320.

[0139] Taking the electronic device 1000 as a mobile phone, the reference floor 340 is regarded as an antenna vibrator with a certain width, so that the antenna system formed by the entire reference floor 340-the second low-frequency antenna unit ANT-0 is like a dipole antenna with a biased feed point. The basic size of a general mobile phone is about 155mm×75mm. For a low-frequency antenna, the longitudinal size of the reference floor 340 is close to 1 / 4 of the low-frequency wavelength. According to the basic principle of the dipole antenna, that is, fully stimulating the longitudinal current of the reference floor 340, the equivalent aperture of the antenna can be increased and the efficiency can be improved. At the same time, the reference floor 340 is a more effective radiator. The lower the operating frequency, the more significant the current effect of the reference floor 340. That is, for a low-frequency antenna, fully stimulating the current of the reference floor 340 can effectively improve the low-frequency radiation efficiency.

[0140] By analyzing the characteristic mode of the reference floor 340 and according to the boundary conditions, it is determined that the appropriate feeding position of the second low-frequency antenna unit ANT-0 in the present application is the weak current area of ​​the reference floor 340, that is, the strong electric field area. Among them, the weak current area of ​​the reference floor 340 is the four corners of the reference floor 340. Furthermore, the distance between the seventh feeding point E3 of the second low-frequency antenna unit ANT-0 and the corner point is less than or equal to 1 / 16 wavelength of the working frequency band of the short low-frequency antenna unit, so that the feeding position of the second low-frequency antenna unit ANT-0 is the weak current area of ​​the reference floor 340, thereby fully stimulating the longitudinal current of the reference floor 340, increasing the equivalent aperture of the antenna and improving efficiency.

[0141] In the antenna system formed by the reference floor 340 and the second low-frequency antenna unit ANT-0, the reference floor 340, as the main radiator of the supported low-frequency band, contributes most of the radiation, while the second low-frequency antenna unit ANT-0 acts as the radiation driving device of the entire antenna system, and its radiation energy accounts for a very small proportion. Therefore, in this case, reducing the size of the second low-frequency radiator 201 will have little effect on the overall radiation performance of the entire system.

[0142] For further information, see Fig.12 The second low-frequency antenna unit ANT-0 provided in the embodiment of the present application also adds a lumped inductor element 203 at the feeding point to compensate for the lack of inductance caused by miniaturization. The second low-frequency matching circuit M0 also includes a series-connected inductive device, which is electrically connected between the second low-frequency signal source 202 and the second low-frequency radiator 201. The series-connected inductive device provides inductive compensation for the second low-frequency radiator 201 to achieve the effect of miniaturization. Among them, the inductive device can be a single inductor, or a plurality of inductors connected in parallel or in series, or a series-parallel form of a capacitor and an inductor, and finally it can be inductive within the working frequency band.

[0143] The above-mentioned inductor device can also be used as a part of the above-mentioned tuning branch to achieve different inductance values ​​when the first switch unit is switched, thereby switching to different low-frequency bands.

[0144] See also Figure 7 A portion of the third low-frequency antenna unit ANT-1 is disposed on the bottom edge 323, and another portion of the third low-frequency antenna unit ANT-1 is disposed on the first side edge 322. Most of the third low-frequency antenna unit ANT-1 is disposed on the first side edge 322 to excite more longitudinal currents.

[0145] See also Figure 7, the third low-frequency antenna unit ANT-1 is arranged adjacent to the side antenna unit ANT-2. The first low-frequency antenna unit (side antenna unit ANT-2), the second low-frequency antenna unit ANT-0 and the third low-frequency antenna unit ANT-1 are used to support the first low-frequency band and the second low-frequency band. Specifically, one of the first low-frequency antenna unit (side antenna unit ANT-2), the second low-frequency antenna unit ANT-0 and the third low-frequency antenna unit ANT-1 is used to support the transmission and reception of the first low-frequency band, another of the three is used to support the transmission and reception of the second low-frequency band, and another of the three is used to support the reception of the first low-frequency band and the reception of the second low-frequency band.

[0146] Furthermore, the present application does not specifically limit the antenna type of the third low-frequency antenna unit ANT-1. Optionally, the third low-frequency antenna unit ANT-1 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, and the like.

[0147] Optional, see Fig.13a The third low-frequency antenna unit ANT-1 is an external IFA antenna. The radiator of the third low-frequency antenna unit ANT-1 is a third low-frequency radiator 11. The signal source of the third low-frequency antenna unit ANT-1 is a third low-frequency signal source 12.

[0148] One end of the third low-frequency radiator 11 is the tenth grounding point F1, and the other end of the third low-frequency radiator 11 is the twelfth free end F2 disconnected from other conductive structures. The eighth feeding point F3 of the third low-frequency radiator 11 is electrically connected to the third low-frequency signal source 12. The third low-frequency signal source 12 is disposed on the second circuit board 503. The eighth feeding point F3 of the third low-frequency radiator 11 is close to the corner of the first side 322 and the bottom 323. The eighth feeding point F3 of the third low-frequency radiator 11 is close to the corner point on the reference floor 340.

[0149] The tenth grounding point F1 of the third low-frequency radiator 11 is located at the bottom edge 323, and the twelfth free end F2 of the third low-frequency radiator 11 is located at the first side edge 322. The twelfth free end F2 of the third low-frequency radiator 11 is adjacent to the tenth grounding point F1 of the side antenna unit ANT-2 and is separated by an insulating slit.

[0150] The break position of the third low-frequency antenna unit ANT-1 is located at the waist of the whole device, which is not easy to be held in a hand-held posture, and has better hand-holding performance.

[0151] For further information, see Fig.13bAt least one eleventh grounding point F4 can also be set between the eighth grounding point C1 of the side antenna unit ANT-2 and the insulating break (the twelfth free end F2) to further improve the isolation between the side antenna unit ANT-2 and the third low-frequency radiator 11.

[0152] See also Fig.13a The third low-frequency antenna unit ANT-1 also includes a third low-frequency matching circuit M1. The third low-frequency matching circuit M1 is electrically connected between the eighth feeding point F3 of the third low-frequency radiator 11 and the third low-frequency signal source 12. The third low-frequency matching circuit M1 includes at least one of a capacitor and an inductor. The third low-frequency matching circuit M1 helps the third low-frequency signal source 12 to excite a resonant mode in the low-frequency band on the third low-frequency radiator 11 by adjusting the impedance matching between the port of the third low-frequency signal source 12 and the port of the third low-frequency radiator 11.

[0153] The third low-frequency signal source 12 is used to excite the third low-frequency radiator 11 to form a resonant mode supporting a low-frequency band. The current of the resonant mode of the low-frequency band is mainly distributed between the tenth grounding point F1 of the third low-frequency radiator 11 and the twelfth free end F2 of the third low-frequency radiator 11. The electrical length between the eighth feeding point F3 of the third low-frequency radiator 11 and the twelfth free end F2 of the third low-frequency radiator 11 can be close to 1 / 4 wavelength or less than 1 / 4 wavelength.

[0154] In other words, the third low-frequency antenna unit ANT-1 can also be used as a short low-frequency antenna unit. The design of the third low-frequency antenna unit ANT-1 as a short low-frequency antenna unit can refer to the second low-frequency antenna unit ANT-0, which will not be repeated here.

[0155] See also Fig.13a , the third low-frequency antenna unit ANT-1 includes a second tuning circuit SW1. The second tuning circuit SW1 is electrically connected to the radiator of the third low-frequency antenna unit ANT-1. Optionally, the second tuning circuit SW1 can be electrically connected to the tenth grounding point F1 of the third low-frequency radiator 11. The second tuning circuit SW1 is used to tune the frequency band covered by the third low-frequency antenna unit ANT-1. The specific design of the second tuning circuit SW1 can refer to the design of the first tuning circuit.

[0156] Generally, four low-frequency antennas are required to support two low frequencies, and in this application, the first low-frequency antenna unit (side antenna unit ANT-2), the second low-frequency antenna unit ANT-0, and the third low-frequency antenna unit ANT-1 can support the transmission and reception of two low-frequency bands, which are the first low-frequency band and the second low-frequency band. The first low-frequency band and the second low-frequency band are different frequency bands and / or signals of different network standards. The specific embodiments are as follows.

[0157] In one embodiment, see Fig.14 The second low-frequency antenna unit ANT-0 is used to transmit the transmission signal of the 4G frequency band and receive the main set reception signal of the 4G frequency band, the third low-frequency antenna unit ANT-1 is used to transmit the transmission signal of the 5G frequency band and receive the main set reception signal of the 5G frequency band, and the first low-frequency antenna unit (side antenna unit ANT-2) is used to receive the diversity reception signals of the 4G and 5G frequency bands.

[0158] Specifically, the operating frequency band of the second low-frequency antenna unit ANT-0 is B20, the operating frequency band of the third low-frequency antenna unit ANT-1 is N28, and the operating frequency band of the first low-frequency antenna unit (side antenna unit ANT-2) covers at least part of B20 and part of N28 to achieve 4G and 5G dual-connection communications in the B20 band and the N28 band. Of course, the operating frequency band of the second low-frequency antenna unit ANT-0 and the operating frequency band of the third low-frequency antenna unit ANT-1 can be exchanged.

[0159] Of course, in other embodiments, the operating frequency band of the second low-frequency antenna unit ANT-0 is N20, the operating frequency band of the third low-frequency antenna unit ANT-1 is B28, and the operating frequency band of the first low-frequency antenna unit (side antenna unit ANT-2) covers at least part of N20 and part of B28 to achieve 4G and 5G dual-connection communications in the N20 band and the B28 band. Of course, the operating frequency band of the second low-frequency antenna unit ANT-0 and the operating frequency band of the third low-frequency antenna unit ANT-1 can be exchanged.

[0160] In another embodiment, the second low-frequency antenna unit ANT-0 is used to transmit the transmission signal of the 4G first frequency band and receive the main set reception signal of the 4G first frequency band, the third low-frequency antenna unit ANT-1 is used to transmit the transmission signal of the 4G second frequency band and receive the main set reception signal of the 4G second frequency band, and the first low-frequency antenna unit (side antenna unit ANT-2) is used to receive the diversity reception signals of the 4G first frequency band and the 4G second frequency band.

[0161] Specifically, the working frequency band of the second low-frequency antenna unit ANT-0 is B20, the working frequency band of the third low-frequency antenna unit ANT-1 is B28, and the working frequency band of the first low-frequency antenna unit (side antenna unit ANT-2) covers at least part of the B20 frequency band and part of the B28 frequency band to achieve carrier aggregation of the B20 frequency band and the B28 frequency band. Of course, the working frequency band of the second low-frequency antenna unit ANT-0 and the working frequency band of the third low-frequency antenna unit ANT-1 can be exchanged.

[0162] In another optional embodiment, the second low-frequency antenna unit ANT-0 is used to transmit the transmission signal of the 5G first frequency band and receive the main set reception signal of the 5G first frequency band, the third low-frequency antenna unit ANT-1 is used to transmit the transmission signal of the 5G second frequency band and receive the main set reception signal of the 5G second frequency band, and the first low-frequency antenna unit (side antenna unit ANT-2) is used to receive the diversity reception signals of the 5G first frequency band and the 5G second frequency band.

[0163] Specifically, the working frequency band of the second low-frequency antenna unit ANT-0 is N20, the working frequency band of the third low-frequency antenna unit ANT-1 is N28, the working frequency band of the first low-frequency antenna unit (side antenna unit ANT-2) at least covers part of the N20 frequency band and part of the N28 frequency band, and the RF module is used to realize carrier aggregation of the N20 frequency band and the N28 frequency band. Of course, the working frequency band of the second low-frequency antenna unit ANT-0 and the working frequency band of the third low-frequency antenna unit ANT-1 can be exchanged.

[0164] The above B20+B28, N20+N28, N20+B28, B20+N28 are only examples. The first low-frequency antenna unit (side antenna unit ANT-2), the second low-frequency antenna unit ANT-0, and the third low-frequency antenna unit ANT-1 can also support other dual low-frequency combinations.

[0165] The above design reduces the number of low-frequency antenna units while supporting dual low frequencies, and is compatible with low-frequency antenna performance and limited space.

[0166] In one embodiment, see Fig.15 The antenna assembly 100 further includes at least four medium and high frequency antenna units. One of the at least four medium and high frequency antenna units is disposed on the top edge 321, another is disposed on the bottom edge 323, and another is disposed on the first side edge 322 or the second side edge 324. The at least four medium and high frequency antenna units can form a 4*4 MIMO antenna system.

[0167] In this embodiment, the medium and high frequency antenna unit is used to support medium and high frequency bands. The medium and high frequency bands are frequency bands greater than 1 GHz and less than 3 GHz.

[0168] Optionally, the number of medium and high frequency antenna units is 4 or 5, etc. In one working mode of the RF end, the RF end supports the operation of 4 medium and high frequency antenna units. In another working mode of the RF end, the RF end supports the operation of 5 medium and high frequency antenna units. In this embodiment, the number of medium and high frequency antenna units is 5. The 5 medium and high frequency antenna units provided in this embodiment are compatible with the above-mentioned two working modes of the RF end.

[0169] By dispersing at least four mid-high frequency antenna units on the frame 320 of the electronic device 1000, the isolation between the mid-high frequency antenna units can be increased, the correlation coefficient in forming the MIMO antenna system can be reduced, and the performance of the MIMO antenna system can be improved; at least four mid-high frequency antenna units can respectively transmit and receive mid-high frequency signals on at least three sides of the electronic device 1000, or different mid-high frequency antenna units can be switched according to different holding scenarios, thereby maintaining good quality of mid-high frequency signals in different holding scenarios.

[0170] Optionally, the medium and high frequency antenna unit may be an antenna unit that supports the medium and high frequency independently, or may be an antenna unit that shares a signal source with the low frequency.

[0171] Optionally, the third low-frequency antenna unit ANT-1 is also used to support the MHB frequency band. The third low-frequency signal source 12 also excites the third low-frequency radiator 11 to form a resonant mode supporting the MHB frequency band between the eighth feeding point F3 and the twelfth free end F2. In other words, the third low-frequency signal source 12 also excites the third low-frequency radiator 11 to generate a resonant mode supporting the MHB frequency band, and the current of the resonant mode of the MHB frequency band is mainly distributed between the eighth feeding point F3 and the twelfth free end F2 of the third low-frequency radiator 11. The resonant mode of the MHB frequency band is a 1 / 4 wavelength mode. In other words, the electrical length between the eighth feeding point F3 and the twelfth free end F2 of the third low-frequency radiator 11 is 1 / 4 wavelength of the supported MHB frequency band.

[0172] Taking the frequency band supported by the third low-frequency antenna unit ANT-1 as the N41 frequency band as an example, the second tuning circuit SW1 is electrically connected to the tenth grounding point F1 of the third low-frequency radiator 11, so that the second tuning circuit SW1 can adjust the low-frequency band supported by the third low-frequency antenna unit ANT-1 while maintaining the N41 frequency band.

[0173] See also Fig.15 The at least four medium and high frequency antenna units include a first medium and high frequency antenna unit ANT-3, a second medium and high frequency antenna unit ANT-4, a third medium and high frequency antenna unit ANT-5, and a fourth medium and high frequency antenna unit ANT-6.

[0174] Optionally, the first mid-high frequency antenna unit ANT-3 is arranged on the top edge 321. The second mid-high frequency antenna unit ANT-4 is arranged on the bottom edge 323. The third mid-high frequency antenna unit ANT-5 is arranged on the second side edge 324. The fourth mid-high frequency antenna unit ANT-6 is arranged on the first side edge 322. In this way, mid-high frequency antenna units are arranged on each side of the frame 320 of the electronic device 1000. On the one hand, the isolation between adjacent mid-high frequency antenna units is increased, the correlation coefficient of the mid-high frequency antenna units to form a MIMO antenna system is reduced, and the work efficiency is improved; on the other hand, mid-high frequency antenna units are arranged on each side of the frame 320, which can cope with hand occlusion in different holding scenarios, and ensure that good mid-high frequency signals can be used in different holding scenarios.

[0175] Optionally, the frequency band supported by at least one of the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6 is adjustable. In this embodiment, the frequency bands supported by the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6 are all adjustable. For example, the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6 can all support B3, B1, B39, B40, B41, N1, N3, and N41.

[0176] In this way, the first mid-high frequency antenna unit ANT-3, the second mid-high frequency antenna unit ANT-4, the third mid-high frequency antenna unit ANT-5, the fourth mid-high frequency antenna unit ANT-6 and the third low frequency antenna unit ANT-1 form five antenna units that can support N41.

[0177] At least one of the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6 includes a third tuning circuit, and the third tuning circuit is used to tune the frequency band size supported by the medium and high frequency antenna unit so that the medium and high frequency antenna unit has a wider bandwidth and supports more medium and high frequency bands.

[0178] The present application does not specifically limit the antenna type of the first medium and high frequency antenna unit ANT-3. Optionally, the first medium and high frequency antenna unit ANT-3 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0179] Optional, see Fig.16The first medium and high frequency antenna unit ANT-3 is a mouth-to-mouth antenna. The first medium and high frequency antenna unit ANT-3 includes a first medium and high frequency main radiator 31, a first medium and high frequency parasitic radiator 32, and a first medium and high frequency signal source 33.

[0180] The first medium and high frequency antenna unit ANT-3 includes a second signal source, a third radiator and a fourth radiator. The third radiator is also the first medium and high frequency main radiator 31, the fourth radiator is the first medium and high frequency parasitic radiator 32, and the second signal source is the first medium and high frequency signal source 33.

[0181] See also Fig.16 , the first medium and high frequency main radiator 31 includes a third grounding point G1, a second feeding point G2, and a third free end G3 which are arranged in sequence. The first medium and high frequency signal source 33 is electrically connected to the second feeding point G2. The first medium and high frequency parasitic radiator 32 includes a fourth free end G4 and a fourth grounding point G5 which are arranged at intervals. There is a second coupling gap between the third free end G3 and the fourth free end G4. The third free end G3 can refer to the first free end A3 mentioned above, and the third grounding point G1 can refer to the first grounding point A1 mentioned above. The first medium and high frequency main radiator 31 and the first medium and high frequency parasitic radiator 32 are coupled through the second coupling gap to form a mouth-to-mouth antenna.

[0182] The first medium and high frequency signal source 33 is used to excite the first medium and high frequency main radiator 31 to form a resonant mode that supports the first medium and high frequency band. The resonant current of the first medium and high frequency band is mainly distributed between the third grounding point G1 and the feeding point of the first medium and high frequency main radiator 31. This mode is a left-hand mode, and the left-hand mode is generally between 1 / 8-1 / 4 wavelength mode. The first medium and high frequency signal source 33 is also used to excite the first medium and high frequency parasitic radiator 32 to form a resonant mode that supports the second medium and high frequency band. The resonant current of the second medium and high frequency band is mainly distributed between the fourth grounding point G5 and the fourth free end G4 of the first medium and high frequency parasitic radiator 32. This mode is a 1 / 4 wavelength mode. For example, the first medium and high frequency band includes but is not limited to the B3, B1, B39, B40, B41, N1, N3, and N41 frequency bands, and the second medium and high frequency band is the N78 frequency band.

[0183] A second break is provided on the top edge 321. The second break is located on the side of the third grounding point G1 away from the third free end G3. The second break and the second coupling gap physically disconnect the two ends of the first medium and high frequency main radiator 31 from other conductive structures. The second break is located between the third grounding point G1 and the eleventh free end E1 of the second low frequency antenna unit ANT-0.

[0184] See also Fig.16, the third grounding point G1 is grounded through the second isolation capacitor C33. The second isolation capacitor C33 is a large capacitor. The second isolation capacitor C33 is a DC isolation capacitor, isolating a DC signal or a small AC signal. The second isolation capacitor C33 is an open circuit for a DC signal or a small AC signal.

[0185] For further information, see Fig.16 The first medium and high frequency antenna unit ANT-3 also includes a first medium and high frequency matching circuit M3 provided between the second feeding point G2 and the first medium and high frequency signal source 33. The first medium and high frequency matching circuit M3 is electrically connected between the second feeding point G2 of the first medium and high frequency main radiator 31 and the first medium and high frequency signal source 33. The first medium and high frequency matching circuit M3 includes at least one of a capacitor and an inductor. The first medium and high frequency matching circuit M3 helps the first medium and high frequency signal source 33 to excite a resonance mode of the medium and high frequency band on the first medium and high frequency main radiator 31 by adjusting the impedance matching between the feeding point port of the first medium and high frequency main radiator 31 and the port of the first medium and high frequency signal source 33.

[0186] The device of the first intermediate / high frequency matching circuit M3 electrically connected to the first intermediate / high frequency main radiator 31 is a capacitor device, which can be used as an isolation capacitor that is disconnected for a DC signal or a small AC signal.

[0187] Furthermore, the first intermediate and high frequency matching circuit M3 includes a switch unit and a plurality of impedance branches with different impedances electrically connected to the switch unit, which are used to tune the size of the first intermediate and high frequency band.

[0188] Among them, since one end of the first medium and high frequency main radiator 31 is the third free end G3, and the other end of the first medium and high frequency main radiator 31 is the second slit, the third grounding point G1, the second feeding point G2 and other structures of the first medium and high frequency main radiator 31 are electrically disconnected relative to the DC signal or the small AC signal, so that the first medium and high frequency main radiator 31 is in a suspended state relative to the DC signal or the small AC signal.

[0189] See also Fig.16 , the electronic device 1000 further includes a second detection circuit 34. The second detection circuit 34 is electrically connected to the first medium-high frequency main radiator 31, and is used to detect whether the subject to be detected is close to the first medium-high frequency main radiator 31 and the area near the first medium-high frequency main radiator 31. Optionally, the second detection circuit 34 can be electrically connected to the third grounding point G1 or the second feeding point G2.

[0190] In the present application, the first medium-high frequency main radiator 31 is arranged at the top edge 321 close to the second side edge 324 , so that it can be used for proximity detection within a certain angle range corresponding to the top edge 321 and the second side edge 324 .

[0191] Furthermore, the first medium and high frequency main radiator 31 and the second detection circuit 34 form a proximity sensor for detecting whether the subject to be detected is approaching. Furthermore, the second detection circuit 34 is electrically connected to the radiator and is provided with a large inductor (for example, the inductor is 82nH) to prevent the high frequency AC signal from flowing to the radiator.

[0192] When a finger approaches the first medium and high frequency main radiator 31, the first medium and high frequency main radiator 31 is suspended for the proximity sensor. The first medium and high frequency main radiator 31 senses the capacitance change caused by the approach of the human body to judge the approaching state of the human body, thereby achieving the purpose of intelligent SAR reduction.

[0193] The present application does not specifically limit the antenna type of the second medium and high frequency antenna unit ANT-4. Optionally, the second medium and high frequency antenna unit ANT-4 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0194] Optional, see Fig.17 The second medium and high frequency antenna unit ANT-4 is a mouth-to-mouth antenna. The second medium and high frequency antenna unit ANT-4 includes a second medium and high frequency main radiator 41, a second medium and high frequency parasitic radiator 42, and a second medium and high frequency signal source 43.

[0195] The second medium and high frequency antenna unit ANT-4 includes a third signal source, a fifth radiator and a sixth radiator. The fifth radiator is the second medium and high frequency main radiator 41. The sixth radiator is the second medium and high frequency parasitic radiator 42. The third signal source is the second medium and high frequency signal source 43.

[0196] See also Fig.17 The second medium and high frequency main radiator 41 includes a fifth grounding point H1, a third feeding point H2 and a fifth free end H3 which are arranged in sequence.

[0197] See also Fig.17 , the second medium and high frequency signal source 43 is electrically connected to the third feeding point H2. The second medium and high frequency parasitic radiator 42 includes a sixth free end H4 and a sixth grounding point H5 which are arranged at intervals. A third coupling gap is provided between the fifth free end H3 and the sixth free end H4. A third break is provided on the bottom edge 323. The third break is located on the side of the sixth grounding point H5 away from the sixth free end H4. The sixth grounding point H5 is returned to ground through a third isolation capacitor or switch.

[0198] The sixth grounding point H5 is adjacent to the tenth grounding point F1 of the third low-frequency antenna unit ANT-1 and an insulating gap is set between them. Further, the sixth grounding point H5 and the tenth grounding point F1 of the third low-frequency antenna unit ANT-1 can be connected to the first tuning circuit SW1 together, so that the sixth grounding point H5 is in a disconnected state with the reference ground, thereby making the second medium and high frequency parasitic radiator 42 in a suspended state, so as to facilitate the second medium and high frequency parasitic radiator 42 to perform proximity detection. In addition, the first tuning circuit SW1 can also tune the electrical length of the second medium and high frequency parasitic radiator 42 to change the frequency band supported by the second medium and high frequency parasitic radiator 42.

[0199] The break position of the second medium and high frequency antenna unit ANT-4 is located at the bottom of the whole device, which is not easy to be held in a hand-held posture, and has better hand-holding performance.

[0200] The second medium and high frequency signal source 43 is used to excite the second medium and high frequency main radiator 41 to form a resonance mode that supports the third medium and high frequency band. The resonant current of the third medium and high frequency band is mainly distributed between the fifth grounding point H1 and the third feeding point H2 of the second medium and high frequency main radiator 41. This mode is a left-hand mode, and the left-hand mode is generally between 1 / 8-1 / 4 wavelength mode. The second medium and high frequency signal source 43 is also used to excite the second medium and high frequency parasitic radiator 42 to form a resonance mode that supports the fourth medium and high frequency band. The resonant current of the fourth medium and high frequency band is mainly distributed between the fifth grounding point H1 and the sixth free end H4 of the second medium and high frequency parasitic radiator 42. This mode is a 1 / 4 wavelength mode. The third medium and high frequency band and the fourth medium and high frequency band are dual waves of the MHB frequency, and the third medium and high frequency band is close to the fourth medium and high frequency band to form a continuous frequency band to support a wider bandwidth.

[0201] For further information, see Fig.17 The second medium and high frequency antenna unit ANT-4 also includes a second medium and high frequency matching circuit M4 provided between the third feeding point H2 and the second medium and high frequency signal source 43. The second medium and high frequency matching circuit M4 is electrically connected between the third feeding point H2 of the second medium and high frequency main radiator 41 and the second medium and high frequency signal source 43. The second medium and high frequency matching circuit M4 includes at least one of a capacitor and an inductor. The second medium and high frequency matching circuit M4 helps the second medium and high frequency signal source 43 to excite a resonance mode of the medium and high frequency band on the second medium and high frequency main radiator 41 by adjusting the impedance matching between the feeding point port of the second medium and high frequency main radiator 41 and the port of the second medium and high frequency signal source 43.

[0202] The device of the second intermediate / high frequency matching circuit M4 electrically connected to the second intermediate / high frequency main radiator 41 is a capacitor device, which can be used as an isolation capacitor that is disconnected for a DC signal or a small AC signal.

[0203] Furthermore, the second mid-high frequency matching circuit M4 includes a switch unit and a plurality of impedance branches with different impedances electrically connected to the switch unit, which are used to tune the magnitudes of the third mid-high frequency band and the fourth mid-high frequency band.

[0204] See also Fig.17 The electronic device 1000 further includes a third detection circuit 44. The third detection circuit 44 is electrically connected to the second medium-high frequency parasitic radiator 42 and is used to detect whether the subject to be detected is close to the second medium-high frequency parasitic radiator 42.

[0205] In the present application, the second medium-high frequency parasitic radiator 42 is disposed at the bottom edge 323 , so that it can be used for proximity detection within a certain angle range corresponding to the bottom edge 323 .

[0206] Furthermore, the second medium and high frequency parasitic radiator 42 and the third detection circuit 44 form a proximity sensor for detecting whether the subject to be detected is approaching. Furthermore, the third detection circuit 44 is electrically connected to the radiator and is provided with a large inductor (for example, the inductor is 82nH) to prevent the high frequency AC signal from flowing to the radiator.

[0207] When a finger approaches the second medium and high frequency parasitic radiator 42, the second medium and high frequency parasitic radiator 42 is suspended for the proximity sensor. The second medium and high frequency parasitic radiator 42 senses the capacitance change caused by the approach of the human body to determine the approach state of the human body, thereby achieving the purpose of intelligent SAR reduction.

[0208] In the embodiment of the present application, the proximity detection module formed by the first Wi-Fi main radiator 92 , the first medium and high frequency main radiator 31 , and the second medium and high frequency parasitic radiator 42 can perform comprehensive detection of SAR hotspots around the electronic device 1000 .

[0209] The present application does not specifically limit the antenna type of the third medium and high frequency antenna unit ANT-5. Optionally, the third medium and high frequency antenna unit ANT-5 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0210] Optional, see Fig.18 The third medium and high frequency antenna unit ANT-5 is a mouth-to-mouth antenna. The third medium and high frequency antenna unit ANT-5 includes a third medium and high frequency main radiator 51, a third medium and high frequency parasitic radiator 52, and a third medium and high frequency signal source 53.

[0211] The third medium and high frequency main radiator 51 and the third medium and high frequency parasitic radiator 52 are both located at the second side 324. The third medium and high frequency parasitic radiator 52 is located at a side close to the battery 502, and the third medium and high frequency main radiator 51 is located at a side close to the top side 321. The third medium and high frequency signal source 53 is electrically connected to a feeding point on the third medium and high frequency main radiator 51. A coupling gap is provided between the third medium and high frequency main radiator 51 and the third medium and high frequency parasitic radiator 52.

[0212] The third medium and high frequency signal source 53 is used to excite the third medium and high frequency main radiator 51 to form a resonance mode that supports the fifth medium and high frequency band. The resonant current of the fifth medium and high frequency band is mainly distributed between the grounding point and the feeding point of the third medium and high frequency main radiator 51. This mode is a left-hand mode, and the left-hand mode is generally between 1 / 8-1 / 4 wavelength mode. The third medium and high frequency signal source 53 is also used to excite the third medium and high frequency parasitic radiator 52 to form a resonance mode that supports the sixth medium and high frequency band. The resonant current of the sixth medium and high frequency band is mainly distributed between the grounding point and the free end of the third medium and high frequency parasitic radiator 52. This mode is a 1 / 4 wavelength mode. For example, the fifth medium and high frequency band includes but is not limited to the B3, B1, B39, B40, B41, N1, N3, and N41 frequency bands, and the sixth medium and high frequency band is the N78 frequency band.

[0213] For further information, see Fig.18 The third medium and high frequency antenna unit ANT-5 also includes a third medium and high frequency matching circuit M5. The third medium and high frequency matching circuit M5 is electrically connected between the feeding point of the third medium and high frequency main radiator 51 and the third medium and high frequency signal source 53. The third medium and high frequency matching circuit M5 includes at least one of a capacitor and an inductor. The third medium and high frequency matching circuit M5 helps the third medium and high frequency signal source 53 to excite a resonance mode of the medium and high frequency band on the third medium and high frequency main radiator 51 by adjusting the impedance matching between the feeding point port of the third medium and high frequency main radiator 51 and the port of the third medium and high frequency signal source 53.

[0214] Furthermore, the third medium and high frequency matching circuit M5 includes a switch unit and a plurality of impedance branches with different impedances electrically connected to the switch unit, which are used to tune the size of the fifth medium and high frequency band.

[0215] The present application does not specifically limit the antenna type of the fourth medium and high frequency antenna unit ANT-6. Optionally, the fourth medium and high frequency antenna unit ANT-6 includes but is not limited to a monopole antenna, an external IFA antenna, an internal IFA antenna, a mouth-to-mouth antenna, a T-type antenna, etc.

[0216] Optional, see Fig.19 The fourth medium and high frequency antenna unit ANT-6 is an external IFA antenna. The fourth medium and high frequency antenna unit ANT-6 includes a fourth medium and high frequency radiator 61 and a fourth medium and high frequency signal source 62.

[0217] The fourth medium and high frequency radiator 61 is located at the first side 322. The fourth medium and high frequency radiator 61 has a grounding point and a free end at both ends. The grounding point of the fourth medium and high frequency radiator 61 is adjacent to the grounding point of the first Wi-Fi main radiator 92 and is insulated by the first slit. The free end of the fourth medium and high frequency radiator 61 faces the bottom edge 323 and is disconnected from other conductive structures.

[0218] The fourth medium and high frequency signal source 62 is electrically connected to the feeding point on the fourth medium and high frequency radiator 61. The fourth medium and high frequency signal source 62 is used to excite the fourth medium and high frequency radiator 61 to form a resonant mode supporting the seventh medium and high frequency band. The resonant current of the seventh medium and high frequency band is mainly distributed between the ground point and the free end of the fourth medium and high frequency radiator 61. This mode is the IFA mode, and the IFA mode is generally a 1 / 4 wavelength mode.

[0219] For further information, see Fig.19 , the fourth medium and high frequency antenna unit ANT-6 also includes a fourth medium and high frequency matching circuit M6. The fourth medium and high frequency matching circuit M6 is electrically connected between the feeding point of the fourth medium and high frequency radiator 61 and the fourth medium and high frequency signal source 62. The fourth medium and high frequency matching circuit M6 includes at least one of a capacitor and an inductor. The fourth medium and high frequency matching circuit M6 helps the fourth medium and high frequency signal source 62 to excite a resonance mode of the medium and high frequency band on the fourth medium and high frequency radiator 61 by adjusting the impedance matching between the feeding point port of the fourth medium and high frequency radiator 61 and the port of the fourth medium and high frequency signal source 62.

[0220] Furthermore, the fourth mid-high frequency matching circuit M6 includes a switch unit and a plurality of impedance branches with different impedances electrically connected to the switch unit, which are used to tune the size of the seventh mid-high frequency band. For example, the frequency bands that can be covered by the seventh mid-high frequency band include but are not limited to B3, B1, B39, B40, B41, N1, N3, and N41 frequency bands.

[0221] The implementation methods of the switching methods of the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6 in this application include but are not limited to the following implementation methods.

[0222] In the first implementation, see Fig.15, the electronic device 1000 also includes a first switching module Q1. The first switching module Q1 includes but is not limited to a switch control module. The first switching module Q1 is electrically connected to the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6. The first switching module Q1 is used to select at least one of the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6 to transmit a first medium and high frequency signal.

[0223] Specifically, the electronic device 1000 detects whether there is a subject to be tested approaching the side of the electronic device 1000 through the proximity sensor set above, and detects the direction of the subject to be tested and the operator's hand-held posture through other detection devices, and then controls the first switching module Q1 to intelligently switch the medium and high frequency antenna unit used to transmit the signal to a medium and high frequency antenna unit that is not blocked by the operator's hand or does not need power fallback, so as to ensure that the medium and high frequency signals can be effectively used in various scenarios. This application does not limit the number of medium and high frequency antenna units for transmitting signals, which can be one or two.

[0224] In the second implementation, see Fig. 20 , the first switching module Q1 is used to switch the first medium and high frequency antenna unit ANT-3 or the third medium and high frequency antenna unit ANT-5 to transmit a second medium and high frequency signal; and the second switching module is also used to switch the second medium and high frequency antenna unit ANT-4 or the fourth medium and high frequency antenna unit ANT-6 to transmit a third medium and high frequency signal, wherein one of the first medium and high frequency signal and the third medium and high frequency signal is an LTE signal, and the other is an NR signal. Among them, the first medium and high frequency antenna unit ANT-3 and the third medium and high frequency antenna unit ANT-5 are respectively arranged on the top edge 321 and the second side edge 324. The second medium and high frequency antenna unit ANT-4 and the fourth medium and high frequency antenna unit ANT-6 are respectively arranged on the first side edge 322 and the bottom edge 323. The above switching method can ensure that the medium and high frequency antenna units are distributed in an upper and lower manner, and medium and high frequency antenna units that are not blocked can be reserved in both horizontal and vertical screen holding scenarios.

[0225] In other embodiments, see Fig.21 The first switching module Q1 is used to select at least one of the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, and the fourth medium and high frequency antenna unit ANT-6 to transmit a first medium and high frequency signal.

[0226] The following is a specific example of the layout of the high-frequency antenna unit on the electronic device 1000.

[0227] Optional, see Fig. 22 , the first medium and high frequency antenna unit ANT-3 is also used as a first high frequency antenna unit. Specifically, the first medium and high frequency parasitic radiator 32 of the first medium and high frequency antenna unit ANT-3 generates a high frequency signal, such as N78, under the excitation of the first medium and high frequency signal source 33. The high frequency signal described in this application is a signal greater than or equal to 3GHz.

[0228] The third intermediate / high frequency antenna unit ANT-5 is also used as a second high frequency antenna unit. Specifically, the third intermediate / high frequency parasitic radiator 52 of the third intermediate / high frequency antenna unit ANT-5 generates a high frequency signal, such as N78, under the excitation of the third intermediate / high frequency signal source 53.

[0229] See also Fig. 22 The antenna assembly 100 also includes a third high-frequency antenna unit ANT-7 and a fourth high-frequency antenna unit ANT-8.

[0230] The third high-frequency antenna unit ANT-7 forms a mouth-to-mouth antenna with the first low-frequency antenna unit (side antenna unit ANT-2). The signal source of the third high-frequency antenna unit ANT-7 is electrically connected to the radiator of the third high-frequency antenna unit ANT-7. The signal source of the third high-frequency antenna unit ANT-7 excites the radiator to form a resonant mode that supports high-frequency signals between the grounding point and the free end, and the resonant mode is a 1 / 4 wavelength mode. The grounding point of the third high-frequency antenna unit ANT-7 is adjacent to the free end of the fourth medium- and high-frequency antenna unit ANT-6 and is disconnected by a slit, and the free end of the third high-frequency antenna unit ANT-7 is coupled to the free end of the first low-frequency antenna unit (side antenna unit ANT-2).

[0231] The second positioning antenna unit ANT-8 is also used as the fourth high-frequency antenna unit ANT-8. Optionally, the second positioning antenna unit ANT-8 is an inverted F antenna. The feeding point of the second positioning antenna unit ANT-8 to the free end supports high-frequency signals, and the feeding to the grounding point of the second positioning antenna unit ANT-8 supports GPS-L1 signals. The grounding point of the second positioning antenna unit ANT-8 is adjacent to the grounding point of the first medium and high frequency parasitic radiator 32 in the first medium and high frequency antenna unit ANT-3, and the free end of the second positioning antenna unit ANT-8 is adjacent to the grounding point of the first Wi-Fi parasitic radiator 93 of the first Wi-Fi antenna unit ANT-9 and is disconnected by a break.

[0232] The first high frequency antenna unit (first medium and high frequency antenna unit ANT-3), the second high frequency antenna unit (third medium and high frequency antenna unit ANT-5), the third high frequency antenna unit ANT-7, and the fourth high frequency antenna unit ANT-8 are all used to support the first high frequency signal. In this way, the high frequency antenna unit can form a 4*4 MIMO antenna system.

[0233] The first high-frequency antenna unit (first medium-high frequency antenna unit ANT-3) is arranged at a position of the top edge 321 close to the second side edge 324. The second high-frequency antenna unit (third medium-high frequency antenna unit ANT-5) is located at a position of the first side edge 322 close to the top edge 321. The third high-frequency antenna unit ANT-7 is located on the side of the fourth medium-high frequency antenna unit ANT-6 away from the second Wi-Fi antenna unit ANT-10. The fourth high-frequency antenna unit ANT-8 is arranged at the top edge 321. In this way, the four high-frequency antenna units are arranged separately and arranged in the upper part of the electronic device 1000, so that the high-frequency antenna unit radiates in the upper part of the electronic device 1000, and also meets the requirements of being able to better support high-frequency signals in both horizontal and vertical screen holding scenarios.

[0234] See also Fig. 22 The electronic device 1000 further includes a second switching module Q2. The second switching module Q2 includes but is not limited to a switch control module.

[0235] The second switching module Q2 is electrically connected to the first high-frequency antenna unit (first medium-high frequency antenna unit ANT-3), the second high-frequency antenna unit (third medium-high frequency antenna unit ANT-5), the third high-frequency antenna unit ANT-7, and the fourth high-frequency antenna unit ANT-8. The second switching module Q2 is used to select at least one of the first high-frequency antenna unit (first medium-high frequency antenna unit ANT-3), the second high-frequency antenna unit (third medium-high frequency antenna unit ANT-5), the third high-frequency antenna unit ANT-7, and the fourth high-frequency antenna unit ANT-8 to transmit a first high-frequency signal.

[0236] Specifically, the electronic device 1000 detects whether there is a subject to be tested approaching the side of the electronic device 1000, the direction of the subject to be tested approaching, and the operator's hand-held posture through the proximity sensor set above, and then controls the second switching module Q2 to intelligently switch the high-frequency antenna unit used to transmit the signal to a high-frequency antenna unit that is not blocked by the operator's hand-held or does not need power fallback, so as to ensure that the high-frequency signal can be effectively used in various scenarios. The present application does not limit the number of high-frequency antenna units for transmitting signals, which can be one or two.

[0237] See also Fig. 22The antenna assembly 100 also includes an NFC antenna ANT-11, and the NFC antenna ANT-11 is disposed on the first circuit board 501.

[0238] See also Figure 23-Figure 25 , Fig.23 is the directional diagram of the first Wi-Fi antenna unit ANT-9 provided in an embodiment of the present application; Fig.24 is the directional diagram of the second Wi-Fi antenna unit ANT-10 provided in an embodiment of the present application; Fig.25 This is the directional diagram when the second Wi-Fi antenna unit ANT-10 provided in the embodiment of the present application is located at the position of the third high-frequency antenna unit ANT-7.

[0239] See also Fig.26 , Fig.26 The middle curve a is the envelope correlation coefficient between the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10 provided in the embodiment of the present application. Fig.26 The middle curve b is a comparison diagram of the envelope correlation coefficient between the second Wi-Fi antenna unit ANT-10 and the first Wi-Fi antenna unit ANT-9 when the second Wi-Fi antenna unit ANT-10 is located at the position of the third high-frequency antenna unit ANT-7.

[0240] As can be seen from the figure, at the 2.46GHz frequency point, the envelope correlation coefficient between the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10 provided in the embodiment of the present application is 0.03, which is much smaller than 0.1. When the second Wi-Fi antenna unit ANT-10 is located at the position of the third high-frequency antenna unit ANT-7, the envelope correlation coefficient between the second Wi-Fi antenna unit ANT-9 and the first Wi-Fi antenna unit ANT-9 is 0.3, which is much larger than 0.3. The smaller the envelope correlation coefficient between the antenna units, the stronger the independence between the antenna units and the smaller the mutual interference. Therefore, the envelope correlation coefficient between the first Wi-Fi antenna unit ANT-9 and the second Wi-Fi antenna unit ANT-10 provided in the embodiment of the present application is small, the mutual interference between the dual Wi-Fi antenna units is small, the MIMO superposition will have better throughput, and the user will use it more smoothly.

[0241] The working state of the antenna assembly 100 provided in the embodiment of the present application in the left-hand scenario. In the left-hand scenario, the second low-frequency antenna unit ANT-0 covers the B28+B8 frequency band, the third low-frequency antenna unit ANT-1 covers the B28+B8 frequency band, the first medium-high frequency antenna unit ANT-3 covers B1+B3+B41+N78, the second medium-high frequency antenna unit ANT-4 covers B1+B3+B41, the third medium-high frequency antenna unit ANT-5 covers B1+B3+B41+N78, the sixth medium-high frequency antenna unit covers N78, and the fourth high frequency antenna unit ANT-8 covers N78.

[0242] The working state of the antenna assembly 100 provided in the embodiment of the present application in the right head and hand scenario. In the right head and hand scenario, the third low-frequency antenna unit ANT-1 covers the B28+B8 frequency band, the first medium-high frequency antenna unit ANT-3 covers B1+B3+B41+N78, the second medium-high frequency antenna unit ANT-4 covers B1+B3+B41, the third medium-high frequency antenna unit ANT-5 covers B1+B3+B41+N78, the sixth medium-high frequency antenna unit covers N78, and the fourth high frequency antenna unit ANT-8 covers N78.

[0243] The working state of the antenna assembly 100 provided in the embodiment of the present application in the horizontal screen two-handed holding scenario. Among them, in the horizontal screen two-handed holding scenario, the first medium and high frequency antenna unit ANT-3 covers B1+B3+B41+N78, the second medium and high frequency antenna unit ANT-4 covers B1+B3+B41, the third medium and high frequency antenna unit ANT-5 covers B1+B3+B41+N78, the sixth medium and high frequency antenna unit covers B1+B3+B41, the third high frequency antenna unit ANT-7 covers N78, and the fourth high frequency antenna unit ANT-8 covers N78. The first Wi-Fi antenna unit ANT-9 covers Wi-Fi 2.4G+Wi-Fi5G, and the second Wi-Fi antenna unit ANT-10 covers Wi-Fi2.4G+Wi-Fi 5G.

[0244] The whole device antenna layout provided in this application uses low-frequency miniaturization technology and is compatible with the GPS L5 / L+L 5G antenna solution; by designing dual Wi-Fi antennas, the first Wi-Fi antenna unit ANT-9 can be used as the main Wi-Fi antenna solution, and the second Wi-Fi antenna unit ANT-10 can be used as another Wi-Fi antenna for Wi-Fi antenna intelligent switching, and can also be used as a Wi-Fi Another channel (CHAIN) of the MIMO system. This design not only increases the Wi-Fi signal strength but also avoids the impact of holding the screen horizontally on the Wi-Fi signal. The second positioning antenna is designed as one of the GPS antennas, and the side antenna unit ANT-2 is another GPS antenna, which can also be used as the third low-frequency antenna of L+L. The 5G antennas of this solution are evenly distributed around the whole device. The N41 frequency band is supported by five antennas formed by the third low-frequency antenna unit ANT-1, the first medium and high frequency antenna unit ANT-3, the second medium and high frequency antenna unit ANT-4, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6. The N78 frequency band is supported by the first medium and high frequency antenna unit ANT-3, the third medium and high frequency antenna unit ANT-5, and the fourth medium and high frequency antenna unit ANT-6. The four antennas formed by the three high-frequency antenna units ANT-7 and the fourth high-frequency antenna unit ANT-8 can meet various usage scenarios without being stuck; the LTE key frequency bands of this solution are also distributed around the whole device, which are respectively composed of the second low-frequency antenna unit ANT-0, the third low-frequency antenna unit ANT-1, the first medium-high frequency antenna unit ANT-3, the second medium-high frequency antenna unit ANT-4 and the third medium-high frequency antenna unit, plus the support of three-antenna intelligent switching, which can also meet various usage scenarios without being stuck; in this solution, the 2G, 3G, 4G, and 5G antenna low frequencies can form 2*2mimo, and can also form medium-high frequency 4*4mimo, among which the medium-high frequencies can also support three-dimensional (top edge 321, bottom edge 323 and side) intelligent switching, and have good LB freedom and left and right head and hand performance.

[0245] Among them, the 5G antenna solution has dual Wi-Fi, 2G, 3G, 4G, and 5G surround layouts that fully consider the various usage scenarios of the whole machine and users, and can ensure that the antenna is not held tightly. For some operators, it is also compatible with GPSL5 with a high upper hemisphere ratio. With the support of dual GPS, the user experience is taken into account to the extreme, achieving higher positioning accuracy, faster positioning, and more accurate navigation. In the operating versions of other regions, the side antenna unit ANT-2 can be used as the third low-frequency antenna of L+L. The space-saving layout of Wi-Fi MIMO through low-frequency miniaturization design can effectively improve the use effect of Wi-Fi users; the L+L layout is on the side of the button to avoid consistency problems.

[0246] In this application, Figure 3 , Figure 4 , Figure 7 , Fig.12 , Fig.14 , Fig.15 , Fig. 20 , Figure 21-25 All of them are simplified views of the back of the electronic device 1000 without the back cover 400 .

[0247] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also regarded as the scope of protection of the present application.

Claims

1. An electronic device, characterized in that: include: A frame, comprising a top edge, a first side edge, a bottom edge and a second side edge connected end to end in sequence, wherein the top edge is arranged opposite to the bottom edge, and the first side edge is arranged opposite to the second side edge; and An antenna assembly, the antenna assembly comprising: a first Wi-Fi antenna unit, at least a portion of which is disposed at a position of the first side edge close to the top edge; and The second Wi-Fi antenna unit is arranged in an area of ​​the second side close to the top edge, and the second Wi-Fi antenna unit is located outside the horizontal screen holding area and the vertical screen holding area on the second side, thereby improving the Wi-Fi signal quality of the electronic device in the horizontal screen holding and vertical screen holding scenarios.

2. The electronic device according to claim 1, wherein: The first Wi-Fi antenna unit is arranged at a corner between the first side edge and the top edge.

3. The electronic device according to claim 1, wherein: The electronic device further comprises a first circuit board and a battery disposed in the frame, wherein the first circuit board is located between the top edge and the battery; The antenna assembly also includes a side antenna unit, which is disposed on the first side, a portion of the side antenna unit is disposed adjacent to the first circuit board, and another portion of the side antenna unit is adjacent to the battery.

4. The electronic device according to claim 3, characterized in that: The side antenna unit is a first positioning antenna unit, and the antenna assembly also includes a second positioning antenna unit arranged on the top side.

5. The electronic device according to claim 3, characterized in that: The side antenna unit is a first low-frequency antenna unit; The antenna assembly further includes a second low-frequency antenna unit and a third low-frequency antenna unit, wherein at least a portion of the second low-frequency antenna unit is disposed on the second side edge, and the second low-frequency antenna unit is located on a side of the second Wi-Fi antenna unit away from the bottom edge; A portion of the third low-frequency antenna unit is arranged on the bottom edge, another portion of the third low-frequency antenna unit is arranged on the first side edge, the third low-frequency antenna unit is arranged adjacent to the side antenna unit, one of the first low-frequency antenna unit, the second low-frequency antenna unit and the third low-frequency antenna unit is used to support transmission and reception of the first low-frequency frequency band, another of the three is used to support transmission and reception of the second low-frequency frequency band, and another of the three is used to support reception of the first low-frequency frequency band and reception of the second low-frequency frequency band.

6. The electronic device according to claim 5, characterized in that: The second low-frequency antenna unit includes a first tuning circuit, the first tuning circuit is electrically connected to a radiator of the second low-frequency antenna unit, and the first tuning circuit is used to tune a frequency band covered by the second low-frequency antenna unit; and / or, The third low-frequency antenna unit includes a second tuning circuit, the second tuning circuit is electrically connected to the radiator of the third low-frequency antenna unit, and the second tuning circuit is used to tune the frequency band covered by the third low-frequency antenna unit.

7. The electronic device according to claim 3, characterized in that: The first side includes a button setting area, the area where the side antenna unit is located covers the button setting area, the button setting area is used to set buttons, and the frequency band supported by the side antenna unit is a low frequency band or a GPS-L5 band.

8. The electronic device according to claim 5, characterized in that: The electronic device further comprises a reference floor disposed in the space surrounded by the frame, wherein the reference floor comprises a corner point; At least one of the second low-frequency antenna unit and the third low-frequency antenna unit is a short low-frequency antenna unit, the distance between the feeding point of the short low-frequency antenna unit and the corner point is less than or equal to 1 / 16 wavelength of the working frequency band of the short low-frequency antenna unit, and the electrical length of the radiator of the short low-frequency antenna unit is less than or equal to 1 / 8 wavelength of the working frequency band of the short low-frequency antenna unit and greater than or equal to 1 / 32 wavelength of the working frequency band of the short low-frequency antenna unit.

9. The electronic device according to any one of claims 1 to 8, characterized in that: The antenna assembly also includes at least four medium and high frequency antenna units, one of which is arranged on the top edge, another is arranged on the bottom edge, and another is arranged on the first side edge or the second side edge.

10. The electronic device according to claim 9, characterized in that: The antenna assembly also includes a third low-frequency antenna unit, a portion of which is arranged on the bottom edge, and another portion of which is arranged on the first side edge. The third low-frequency antenna unit is also used to support the MHB frequency band.

11. The electronic device according to claim 9, characterized in that: The at least four medium and high frequency antenna units include a first medium and high frequency antenna unit, a second medium and high frequency antenna unit, a third medium and high frequency antenna unit, and a fourth medium and high frequency antenna unit. The first medium and high frequency antenna unit is arranged at the top edge, the second medium and high frequency antenna unit is arranged at the bottom edge, the third medium and high frequency antenna unit is arranged at the second side edge, and the fourth medium and high frequency antenna unit is arranged at the first side edge.

12. The electronic device according to claim 11, characterized in that: The electronic device further includes a first switching module, the first switching module is electrically connected to the first medium and high frequency antenna unit, the second medium and high frequency antenna unit, the third medium and high frequency antenna unit, and the fourth medium and high frequency antenna unit, and the first switching module is used to select at least one of the first medium and high frequency antenna unit, the second medium and high frequency antenna unit, the third medium and high frequency antenna unit, and the fourth medium and high frequency antenna unit to transmit a first medium and high frequency signal; Alternatively, the first switching module is used to select at least one of the first medium and high frequency antenna unit, the second medium and high frequency antenna unit, and the fourth medium and high frequency antenna unit to transmit a first medium and high frequency signal.

13. The electronic device according to claim 11, characterized in that: The electronic device also includes a first switching module, which is electrically connected to the first medium and high frequency antenna unit, the second medium and high frequency antenna unit, the third medium and high frequency antenna unit, and the fourth medium and high frequency antenna unit, and the first switching module is used to switch the first medium and high frequency antenna unit or the third medium and high frequency antenna unit to transmit a second medium and high frequency signal; and the second switching module is also used to switch the second medium and high frequency antenna unit or the fourth medium and high frequency antenna unit to transmit a third medium and high frequency signal, wherein one of the first medium and high frequency signal and the third medium and high frequency signal is an LTE signal, and the other is an NR signal.

14. The electronic device according to claim 11, characterized in that: At least one of the first medium and high frequency antenna unit, the second medium and high frequency antenna unit, the third medium and high frequency antenna unit, and the fourth medium and high frequency antenna unit includes a third tuning circuit, and the third tuning circuit is used to tune the frequency band size supported by the medium and high frequency antenna unit.

15. The electronic device according to claim 11, characterized in that: The first medium and high frequency antenna unit is also used as a first high frequency antenna unit, and the first high frequency antenna unit is arranged at a position of the top edge close to the second side edge, and the fourth medium and high frequency antenna unit is also used as a second high frequency antenna unit, and the second high frequency antenna unit is arranged at a side of the first Wi-Fi antenna unit away from the top edge; The antenna assembly also includes a third high-frequency antenna unit and a fourth high-frequency antenna unit. The third high-frequency antenna unit is located on a side of the fourth medium- and high-frequency antenna unit away from the second Wi-Fi antenna unit. The fourth high-frequency antenna unit is arranged on the top edge, and the fourth high-frequency antenna unit is also used as a positioning antenna unit. The first high-frequency antenna unit, the second high-frequency antenna unit, the third high-frequency antenna unit, and the fourth high-frequency antenna unit are all used to support the first high-frequency signal.

16. The electronic device according to claim 15, characterized in that: The electronic device also includes a second switching module, which is electrically connected to the first high-frequency antenna unit, the second high-frequency antenna unit, the third high-frequency antenna unit, and the fourth high-frequency antenna unit. The second switching module is used to select at least one of the first high-frequency antenna unit, the second high-frequency antenna unit, the third high-frequency antenna unit, and the fourth high-frequency antenna unit to transmit a first high-frequency signal.

17. The electronic device according to any one of claims 1 to 8 and 10 to 16, characterized in that: The first Wi-Fi antenna unit includes a first signal source, a first radiator and a second radiator, the first radiator includes a first grounding point, a first feeding point and a first free end arranged in sequence, the first signal source is electrically connected to the first feeding point, and the second radiator includes a second free end and a second grounding point arranged at intervals; a first coupling gap is formed between the first free end and the second free end, a first break is formed on the first side, the first break is located on a side of the first grounding point away from the first free end, and the first grounding point is grounded through a first isolation capacitor C99; The electronic device further includes a first detection circuit, which is electrically connected to the first radiator and is used to detect whether the subject to be detected is close to the first radiator.

18. The electronic device according to any one of claims 11 to 15, characterized in that: The first medium and high frequency antenna unit includes a second signal source, a third radiator and a fourth radiator, the third radiator includes a third grounding point, a second feeding point and a third free end arranged in sequence, the second signal source is electrically connected to the second feeding point, and the fourth radiator includes a fourth free end and a fourth grounding point arranged at intervals; a second coupling gap is formed between the third free end and the fourth free end, a second break is formed on the top edge, the second break is located on a side of the third grounding point away from the third free end, and the third grounding point is grounded through a second isolation capacitor; The electronic device further includes a second detection circuit, which is electrically connected to the third radiator and is used to detect whether the subject to be detected is close to the third radiator.

19. The electronic device according to any one of claims 11 to 15, characterized in that: The second medium and high frequency antenna unit includes a third signal source, a fifth radiator and a sixth radiator, the fifth radiator includes a fifth grounding point, a third feeding point and a fifth free end arranged in sequence, the third signal source is electrically connected to the third feeding point, and the sixth radiator includes a sixth free end and a sixth grounding point arranged at intervals; a third coupling gap is formed between the fifth free end and the sixth free end, a third break is formed on the bottom edge, the third break is located on a side of the sixth grounding point away from the sixth free end, and the sixth grounding point is returned to the ground through a third isolation capacitor or a switch; The electronic device further includes a third detection circuit, which is electrically connected to the sixth radiator and is used to detect whether the subject to be detected is close to the sixth radiator.

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