Electronic device

Abstract

This application discloses an electronic device, including: a first frame, a second frame, a flexible screen, and an antenna cluster. One end of the flexible screen is connected to the first frame, and the other end of the flexible screen is connected to the second frame. The second frame and the first frame can switch between a first state and a second state. The antenna cluster includes a first antenna and a second antenna. The first antenna is disposed on the first frame, and the second antenna is disposed on the second frame. Both the first antenna and the second antenna are connected to a feed point. This enhances the stability of the antenna performance of the electronic device.

Description

Technical Field

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

[0002] With the continuous development of electronic technology, electronic devices are playing an increasingly important role in people's lives. The types of electronic devices are also increasing, and some devices now exist that can move with the screen and change their frame position accordingly. In practical use, this changeable frame position makes antenna placement more difficult, leading to potential antenna instability issues. Summary of the Invention

[0003] This application aims to provide an electronic device to solve the problem of unstable performance of the antenna in electronic devices.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] This application provides an electronic device, including: a first frame, a second frame, a flexible screen, and an antenna cluster. One end of the flexible screen is connected to the first frame, and the other end of the flexible screen is connected to the second frame. The second frame and the first frame can switch between a first state and a second state. The antenna cluster includes a first antenna and a second antenna. The first antenna is disposed on the first frame, and the second antenna is disposed on the second frame. Both the first antenna and the second antenna are connected to a feed point.

[0006] When the second frame and the first frame are in the first state, the flexible screen is at least partially housed in the first frame, the first antenna and the second antenna are at least partially opposite to each other, and the first antenna and the second antenna are spaced apart.

[0007] When the second frame and the first frame are in the second state, the flexible screen is located outside the first frame, the first antenna and the second antenna are misaligned and spaced apart, both the first antenna and the second antenna are in working state, and the working frequencies of the first antenna and the second antenna at least partially overlap.

[0008] In the embodiments of this application, when the second frame and the first frame are in a second state, both the first antenna and the second antenna are in a working state, and the working frequencies of the first antenna and the second antenna at least partially overlap. Through the coupling effect between the first antenna and the second antenna, that is, the first antenna and the second antenna work together to form a co-frequency antenna cluster, thereby solving the problem of unstable antenna performance of electronic devices.

[0009] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0010] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0011] Figure 1 This is one of the structural schematic diagrams of the electronic device provided in this application embodiment when the second frame and the first frame are in a second state;

[0012] Figure 2 This is provided in the embodiments of this application. Figure 1 Schematic diagram of the location of the central antenna cluster;

[0013] Figure 3 This is one of the structural schematic diagrams of the electronic device provided in this application embodiment when the second frame and the first frame are in a first state;

[0014] Figure 4 This is provided in the embodiments of this application. Figure 3 Schematic diagram of the location of the central antenna cluster;

[0015] Figure 5 This is one of the schematic diagrams showing the position of the antenna cluster when the second frame of the electronic device provided in this application is in a second state with respect to the first frame;

[0016] Figure 6 This is one of the schematic diagrams showing the position of the antenna cluster when the second frame and the first frame of the electronic device provided in this application are in a first state;

[0017] Figure 7 This is one of the circuit structure diagrams of the electronic device provided in this application when the second frame and the first frame are in a second state;

[0018] Figure 8 This is one of the circuit structure diagrams of the electronic device provided in this application when the second frame and the first frame are in a first state;

[0019] Figure 9 This is a diagram showing the radiation efficiency and overall efficiency of the antenna of the electronic device provided in the embodiments of this application;

[0020] Figure 10 This is the second schematic diagram of the structure of the electronic device provided in this application embodiment when the second frame and the first frame are in a second state;

[0021] Figure 11 This is the second schematic diagram of the structure of the electronic device provided in this application embodiment when the second frame and the first frame are in a first state;

[0022] Figure 12 This is the third schematic diagram of the structure of the electronic device provided in this application embodiment when the second frame and the first frame are in a second state;

[0023] Figure 13 This is the third schematic diagram of the structure of the electronic device provided in this application embodiment when the second frame and the first frame are in a first state. Detailed Implementation

[0024] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] See Figures 1 to 8 The electronic device includes: a first frame 10, a second frame 20, a flexible screen 30, and an antenna cluster 40. One end of the flexible screen 30 is connected to the first frame 10, and the other end of the flexible screen 30 is connected to the second frame 20. The first frame 10 and the second frame 20 can switch between a first state and a second state. The antenna cluster 40 includes a first antenna 41 and a second antenna 42. The first antenna 41 is disposed on the first frame 10, and the second antenna 42 is disposed on the second frame 20. Both the first antenna 41 and the second antenna 42 are connected to a feed point.

[0026] Among them, see Figure 3 and Figure 4 When the first frame 10 and the second frame 20 are in the first state, the flexible screen 30 is at least partially housed within the first frame 10, and the first antenna 41 and the second antenna 42 are at least partially opposite to each other and are spaced apart.

[0027] See Figure 1 and Figure 2When the first frame 10 and the second frame 20 are in the second state, the flexible screen 30 is located outside the first frame 10, the first antenna 41 and the second antenna 42 are misaligned and spaced apart, both the first antenna 41 and the second antenna 42 are in working state, and the working frequencies of the first antenna 41 and the second antenna 42 at least partially overlap.

[0028] The staggered arrangement of the first antenna 41 and the second antenna 42 can be understood as follows: the vertical projection of the second antenna 42 onto the plane where the first antenna 41 is located is staggered from that of the first antenna 41, that is, the vertical projection does not overlap with the first antenna 41.

[0029] The first antenna 41 and the second antenna 42 are spaced apart, which can be understood as the first antenna 41 and the second antenna 42 not touching.

[0030] The working principle of the embodiments of this application can be found in the following description:

[0031] When the second frame 20 and the first frame 10 are in the second state, both the first antenna 41 and the second antenna 42 are in working state, and the working frequencies of the first antenna 41 and the second antenna 42 at least partially overlap. Through the coupling effect between the first antenna 41 and the second antenna 42, that is, the first antenna 41 and the second antenna 42 work together to form a co-frequency antenna cluster, thereby solving the problem of unstable antenna performance of electronic devices.

[0032] It should be noted that when the second frame 20 and the first frame 10 are in the first state, at least one of the first antenna 41 and the second antenna 42 can be in the working state. In this way, the radiation performance of the antenna of the electronic device is relatively stable whether the second frame 20 and the first frame 10 are in the first state or the second state.

[0033] When the first frame 10 and the second frame 20 are in the second state, the first antenna 41 and the second antenna 42 included in the antenna cluster 40 are both in operation, and the operating frequencies of the first antenna 41 and the second antenna 42 at least partially overlap. This results in a coupling effect between the first antenna 41 and the second antenna 42, thereby generating a coupled wave. The coupled wave can cancel out the echo at the feed point, thereby improving the impedance matching of the electronic device, increasing the bandwidth and efficiency of the antenna of the electronic device, and further enhancing the radiation performance of the antenna of the electronic device.

[0034] It should be noted that when the first frame 10 and the second frame 20 are in the second state, both the first antenna 41 and the second antenna 42 are in working state, and the operating frequencies of the first antenna 41 and the second antenna 42 at least partially overlap. When the operating frequencies of the first antenna 41 and the second antenna 42 overlap, the antenna cluster 40 can be called a co-frequency antenna cluster. At this time, the first antenna 41 and the second antenna 42 can be equivalent to a single-port antenna device. Therefore, the antenna of the electronic device can always work in single-input single-output (SISO) mode and can be directly connected to the RF output port in the electronic device, reducing the impact on the RF architecture of the electronic device.

[0035] The first antenna 41 is disposed on the first frame 10, and the second antenna 42 is disposed on the second frame 20. In this way, the internal structure of the first frame 10 and the second frame 20 of the electronic device can be utilized to improve the utilization rate and integration of the internal space of the electronic device. This can solve the problem of unstable antenna performance of the electronic device when the state between the second frame 20 and the first frame 10 switches between the first state and the second state.

[0036] In addition, when the second frame 20 and the first frame 10 are in the second state, the first antenna 41 and the second antenna 42 are misaligned and spaced apart, and both the first antenna 41 and the second antenna 42 are in working state. In this way, compared with the method in which the first antenna 41 and the second antenna 42 are at least partially opposite to each other, the obstruction of the radiated signal by the first antenna 41 and the second antenna 42 can be reduced, thereby enhancing the radiation performance of the antenna of the electronic device.

[0037] In the first state, when the second frame 20 and the first frame 10 are in a first state, the flexible screen 30 is at least partially housed within the first frame 10. This can be understood as the electronic device being in a closed state, with the flexible screen 30 in a folded or rolled-up state. In the second state, when the second frame 20 and the first frame 10 are in a second state, the electronic device can also be in an unfolded or open state, with the flexible screen 30 located outside the first frame 10. Because the flexible screen 30 can switch between folded and unfolded states, the electronic device can be called a rollable screen electronic device.

[0038] In addition, when the second frame 20 and the first frame 10 are in the first state, the flexible screen 30 is at least partially housed within the first frame 10, and the first antenna 41 and the second antenna 42 are at least partially arranged opposite each other. This can reduce the overall size of the electronic device and make it easier for the electronic device to be in a folded or rolled state. At the same time, the first antenna 41 and the second antenna 42 are spaced apart, which can reduce the mutual influence between the first antenna 41 and the second antenna 42.

[0039] Among them, see Figure 1 , 3 10, 11, 12, and 13, the first frame 10 may also be provided with functional devices. As an optional implementation, the functional devices may include a camera assembly 60. In this way, the functionality of the electronic device can be increased, while eliminating the need to reserve space for the aforementioned functional devices, thereby improving the integration of the electronic device.

[0040] It should be noted that, as an optional implementation, the second frame 20 can move relative to the first frame 10, while the position of the first frame 10 can be fixed. That is to say, the first frame 10 can be referred to as the fixed frame, and the second frame 20 can be referred to as the movable frame.

[0041] As an optional implementation, when the second frame 20 and the first frame 10 are in the first state, one of the first antenna 41 and the second antenna 42 is in an active state, and the other is in a non-active state.

[0042] In this way, when the second frame 20 and the first frame 10 are in the first state, the electronic device's demand for antenna radiation performance is reduced. It can control one of the first antenna 41 and the second antenna 42 to be in the working state and the other to be in the non-working state. That is, it can control the electronic device to be in single antenna mode and reduce the interference between the first antenna 41 and the second antenna 42.

[0043] It should be noted that, as an optional implementation, when the second frame 20 and the first frame 10 are in the first state, the first antenna 41 is in the working state and the second antenna 42 is in the non-working state.

[0044] See Figure 9 , Figure 9 This diagram illustrates the radiation efficiency and overall efficiency of the antenna of the electronic device when the second frame 20 and the first frame 10 are in the first and second states, respectively. Figure 9 As shown, Figure 9The horizontal axis represents frequency (in GHz), and the vertical axis represents efficiency (in dB). C1 represents the radiation efficiency diagram of the electronic device's antenna when the second frame 20 and the first frame 10 are in the second state (i.e., the first antenna 41 and the second antenna 42 are both in operation). C2 represents the radiation efficiency diagram of the electronic device's antenna when the second frame 20 and the first frame 10 are in the first state (i.e., one of the first antenna 41 and the second antenna 42 is in operation). D1 represents the overall efficiency diagram of the electronic device's antenna when the second frame 20 and the first frame 10 are in the second state. D2 represents the radiation efficiency diagram of the electronic device's antenna when the second frame 20 and the first frame 10 are in the first state. It can be seen that when the second frame 20 and the first frame 10 are in the first state (i.e., one of the first antenna 41 and the second antenna 42 is in the working state), the antenna in the non-working state of the first antenna 41 and the second antenna 42 has no effect on the radiation efficiency and total efficiency of the antenna in the working state of the first antenna 41 and the second antenna 42. However, when the second frame 20 and the first frame 10 are in the second state (i.e., both the first antenna 41 and the second antenna 42 are in the working state), the first antenna 41 and the second antenna 42 operate in coordination, and the radiation efficiency and total efficiency are significantly improved.

[0045] As another optional implementation, when the second frame 20 and the first frame 10 are in the first state, the first antenna 41 and the second antenna 42 can both be in the working state, which can enhance the radiation performance of the electronic device.

[0046] As an optional implementation, when the second frame 20 and the first frame 10 are in the first state, the vertical projection of the second antenna 42 on the plane where the first antenna 41 is located coincides with the first antenna 41.

[0047] The first antenna 41 and the second antenna 42 can be the same size.

[0048] In this embodiment of the disclosure, when the second frame 20 and the first frame 10 are in the first state, the vertical projection of the second antenna 42 on the plane where the first antenna 41 is located coincides with the first antenna 41. In this way, the mutual influence between the first antenna 41 and the second antenna 42 can be reduced (that is, the phenomenon of mutual shading between the first antenna 41 and the second antenna 42 is reduced), and the radiation performance of the first antenna 41 and the second antenna 42 is better.

[0049] As an optional implementation, see [link to implementation details]. Figure 2The first end of the first antenna 41 has a first gap 411 between it and the first frame 10, the second end of the first antenna 41 has a second gap 412 between it and the second frame 20, and the first end of the second antenna 42 has a third gap 421 between it and the second frame 20.

[0050] When the second frame 20 and the first frame 10 are in the first state, the vertical projection of the third gap 421 on the plane where the first antenna 41 is located is within the second gap 412.

[0051] The area of ​​the second gap 412 can be greater than the area of ​​the third gap 421 projected vertically onto the plane where the first antenna 41 is located.

[0052] In this embodiment of the disclosure, when the second frame 20 and the first frame 10 are in the first state, the vertical projection of the third gap 421 on the plane where the first antenna 41 is located is within the second gap 412. This can further reduce the mutual influence between the first antenna 41 and the second antenna 42, thereby ensuring that the radiation performance of the first antenna 41 and the second antenna 42 is good.

[0053] In one optional implementation, the first gap 411, the second gap 412, and the third gap 421 can all be filled with insulating materials. The material of the insulating materials is not limited here. In another optional implementation, the insulating materials can be rubber materials. In this way, the first gap 411, the second gap 412, and the third gap 421 can not only have the function of insulation, but also have the function of buffering, thereby enhancing the protection of the first antenna 41 and the second antenna 42.

[0054] As an optional implementation, see [link to implementation details]. Figure 1 When the second frame 20 and the first frame 10 are in the second state, the vertical projection of the second antenna 42 on the plane where the first antenna 41 is located and the first antenna 41 are symmetrically distributed about the second gap 412.

[0055] In this embodiment of the disclosure, since the vertical projection of the second antenna 42 on the plane where the first antenna 41 is located and the first antenna 41 are symmetrically distributed about the second gap 412, the radiation signal distribution within the radiation range corresponding to the first antenna 41 and the second antenna 42 can be made more uniform, so that the radiation signal distribution around the electronic device is more uniform, thereby enhancing the radiation performance of the electronic device.

[0056] In addition, since the second antenna 42 is vertically projected onto the plane where the first antenna 41 is located and the first antenna 41 is symmetrically distributed about the second gap 412, the aesthetics of the electronic device can be enhanced and the user experience can be improved.

[0057] As an optional implementation, see [link to implementation details]. Figure 5 and Figure 6 The first antenna 41 is connected to a first feed point 413, and the second antenna 42 is connected to a second feed point 423.

[0058] The first feed point 413 can be understood as the feed point connected to the first antenna 41, and the second feed point 423 can be understood as the feed point connected to the second antenna 42.

[0059] Among them, see Figure 5 and Figure 6 The first antenna 41 is also connected to a first grounding point 414, and the second antenna 42 is also connected to a second grounding point 424. The first grounding point 414 can be connected to the first end of the first antenna 41, and the second grounding point 424 can be connected to the first end of the second antenna 42.

[0060] In this embodiment of the disclosure, a first feed point 413 is connected to the first antenna 41, and a second feed point 423 is connected to the second antenna 42. This allows the first antenna 41 and the second antenna 42 to be fed respectively, thereby enhancing the flexibility and stability of feeding the first antenna 41 and the second antenna 42.

[0061] It should be noted that the first antenna 41 may include an antenna feed point, and the second antenna 42 may also include an antenna feed point. The feeding method between the first feed point 413 and the antenna feed point included in the first antenna 41, as well as the feeding method between the second feed point 423 and the antenna feed point included in the second antenna 42, are not limited here.

[0062] Optionally, the first feed point 413 can be electrically connected to the antenna feed point included in the first antenna 41, thereby feeding the first antenna 41; the second feed point 423 can also be electrically connected to the antenna feed point included in the second antenna 42, thereby feeding the second antenna 42.

[0063] Alternatively, the first feed point 413 can be coupled to the antenna feed point included in the first antenna 41 to feed the first antenna 41; the second feed point 423 can also be coupled to the antenna feed point included in the second antenna 42 to feed the second antenna 42.

[0064] As an optional implementation, see [link to implementation details]. Figure 7 and Figure 8The electronic device further includes an RF feed point 50, a first switch 80, a first impedance matching circuit 81, a second switch 82, a second impedance matching circuit 83, a power divider 84, a phase shifter 85, and a third switch 86. The RF feed point 50 is electrically connected to a first terminal 801 of the first switch 80. The second terminal 802 of the first switch 80 is electrically connected to a third terminal 821 of the second switch 82 through the first impedance matching circuit 81. The fourth terminal 822 of the second switch 82 is electrically connected to the antenna feed point of the first antenna 41. The fifth terminal 803 of the first switch 80 is electrically connected to the power divider 84 through the second impedance matching circuit 83. The power divider 84 is electrically connected to a sixth terminal 823 of the second switch 82 through the phase shifter 85. The power divider 84 is also electrically connected to a seventh terminal 861 of the third switch 86. The eighth terminal 862 of the third switch 86 is electrically connected to the antenna feed point of the second antenna 42.

[0065] Among them, see Figure 8 When the second frame 20 and the first frame 10 are in the first state, the first end 801 of the first switch 80 is electrically connected to the second end 802 of the first switch 80, and the first end 801 of the first switch 80 is disconnected from the fifth end 803 of the first switch 80. The fourth end 822 of the second switch 82 is electrically connected to the third end 821 of the second switch 82, and the fourth end 822 of the second switch 82 is disconnected from the sixth end 823 of the second switch 82. The seventh end 861 of the third switch 86 and the eighth end 862 of the third switch 86 are disconnected.

[0066] See Figure 7 When the second frame 20 and the first frame 10 are in the second state, the first end 801 of the first switch 80 is electrically connected to the fifth end 803 of the first switch 80, and the first end 801 of the first switch 80 is disconnected from the second end 802 of the first switch 80. The fourth end 822 of the second switch 82 is electrically connected to the sixth end 823 of the second switch 82, and the fourth end 822 of the second switch 82 is disconnected from the third end 821 of the second switch 82. The seventh end 861 and the eighth end 862 of the third switch 86 are closed.

[0067] When the second frame 20 and the first frame 10 are in the second state, both the first antenna 41 and the second antenna 42 are in working state. Since the first antenna 41 and the second antenna 42 have at least partial frequency overlap, there is a strong coupling effect between the first antenna 41 and the second antenna 42. At this time, the first antenna 41 and the second antenna 42 work together to form a co-frequency antenna cluster, thereby improving the performance of the antenna of the electronic device.

[0068] When the second frame 20 and the first frame 10 are in the first state, the first antenna 41 is in the working state and the second antenna 42 is in the non-working state, that is, it is in the single antenna working mode. At this time, since the second antenna 42 and the first antenna 41 are the same size and their corresponding gaps can overlap, and the second antenna 42 and the first antenna 41 are spaced apart, the second antenna 42 will not affect the first antenna 41.

[0069] In this embodiment of the disclosure, the control circuit described above can be used to switch between single antenna operating mode and antenna cluster operating mode, and the switching effect is reliable.

[0070] Furthermore, the control circuit provided in this embodiment includes a power divider 84, a phase shifter 85, and radio frequency transmission lines required to connect the various devices. Compared to common antenna cluster control circuits, this antenna scheme can not only switch between traditional single-antenna mode and same-frequency antenna cluster mode according to the usage scenario of the electronic device, i.e., closed or deployed state, but also directly use an equal-amplitude power distribution method within the antenna's operating frequency band. See [link to relevant documentation]. Figure 7 and Figure 8 That is, the amplitudes A1 and A2 of the radio frequency signals corresponding to the first antenna 41 and the second antenna 42 are equal, both being A0. Where A0 represents the amplitude of the RF signal before power distribution (i.e., the amplitude of the RF signal provided by the RF feed point 50). Furthermore, since relative phase is used when forming the antenna cluster, i.e., the phase difference between the first antenna 41 and the second antenna 42, the phase of the second antenna 42 can be directly selected as the reference phase, i.e., the phase zero. At this time, the phase φ1 of the phase shifter connected to the first antenna 41 is fixed at 180°, meaning that the phases of the first antenna 41 and the second antenna 42 are always opposite. In this case, the weighting coefficients of the antenna cluster can be calculated without relying on the coupling information between antennas at each operating frequency point, simplifying the control circuit of the antenna cluster while ensuring the antenna performance of the electronic device.

[0071] In other words, in this embodiment, the weighting coefficients when forming antenna clusters at the same frequency adopt the method of equal power distribution and fixed phase difference. It is not necessary to calculate based on the coupling information between the first antenna 41 and the second antenna 42, nor is it necessary to dynamically adjust according to the operating frequency. This simplifies the control circuit and logic and reduces the difficulty of implementing antenna cluster technology in electronic devices.

[0072] As an optional implementation, the second antenna 42 is grounded via the fourth switch 87;

[0073] Specifically, when the second frame 20 and the first frame 10 are in the first state, the fourth switch 87 is open; when the second frame 20 and the first frame 10 are in the second state, the fourth switch 87 is closed.

[0074] In this embodiment, the fourth switch 87 is provided, and the state of the second antenna 42 can be controlled more conveniently by opening and closing the fourth switch 87.

[0075] As an optional implementation, see [link to implementation details]. Figure 5 and Figure 6 The electronic device further includes a flexible circuit board, on which the feed line of at least one of the first antenna 41 and the second antenna 42 is located. Alternatively, it can be understood that at least one of the first antenna 41 and the second antenna 42 is electrically connected to a feed point (which can be understood as the feed source corresponding to the antenna) through the aforementioned flexible circuit board.

[0076] Among them, see Figure 5 and Figure 6 The first antenna 41 can be electrically connected to the feed point (i.e., the feed source of the first antenna 41) through the first printed circuit board 415, and the second antenna 42 can be electrically connected to the feed point (i.e., the feed source of the second antenna 42) through the second printed circuit board 422.

[0077] It should be noted that at least one of the second printed circuit board 422 and the first printed circuit board 415 can be a flexible printed circuit board, which makes wiring more convenient. That is to say, when the second printed circuit board 422 and the first printed circuit board 415 are flexible printed circuit boards, the second printed circuit board 422 and the first printed circuit board 415 can be understood as the flexible circuit board.

[0078] Among them, flexible circuit boards can be referred to as (Flexible Printed Circuit, FPC).

[0079] In this embodiment, the feed line of at least one of the first antenna 41 and the second antenna 42 is located on the flexible circuit board. This allows for flexible configuration of the feed line shape, thereby enabling flexible configuration of the positions of the first antenna 41 and the second antenna 42. This increases the flexibility of the placement of the first antenna 41 and the second antenna 42, reducing the limitations of their placement and making it more convenient to power the first antenna 41 and the second antenna 42. At the same time, since the second frame 20 can move relative to the first frame 10, and due to the good flexibility of the flexible circuit board, it is convenient to lay out the flexible circuit board and reduce the impact on the power supply of the first antenna 41 and the second antenna 42.

[0080] As an optional implementation, the first antenna 41 is electrically connected to the feed point (i.e., the feed source of the first antenna 41) via a spring or metal connecting piece, and the second antenna 42 is electrically connected to the feed point (i.e., the feed source of the second antenna 42) via a flexible circuit board 70.

[0081] This increases the diversity of ways to electrically connect the first antenna 41 and the second antenna 42 to the feed point. Meanwhile, because the space between the first frame 10 and the second frame 20 is very small, and because the second antenna 42 is closer to the external environment than the first antenna 41, feeding the second antenna 42 is difficult. Therefore, the second antenna 42 can be fed through the flexible circuit board 70. The flexible circuit board 70's bendability allows the antenna feed point and ground point of the second antenna 42 to be led into the electronic device, and connected to the antenna's control circuit via a flexible connecting wire.

[0082] As an optional implementation, see [link to implementation details]. Figure 10 and Figure 11 The first frame 10 includes a first side frame 11 and a first back cover 12 arranged adjacent to each other, and the second frame 20 includes a second side frame 21 and a second back cover 22 arranged adjacent to each other.

[0083] The first antenna 41 is disposed at the first frame 11, and the second antenna 42 is disposed at the second frame 21; and / or,

[0084] The first antenna 41 is disposed at the first back cover 12, and the second antenna 42 is disposed at the second back cover 22.

[0085] The first back cover 12 and the second back cover 22 can be non-metallic back covers.

[0086] In this embodiment, the diversity and flexibility of the placement of the first antenna 41 and the second antenna 42 can be enhanced.

[0087] As an optional implementation, the number of antenna clusters 40 is at least two, and the at least two antenna clusters 40 are arranged in different positions.

[0088] In this embodiment of the application, the number of antenna clusters 40 is at least two, which can further enhance the radiation performance of the antenna of the electronic device.

[0089] As an optional implementation, see [link to implementation details]. Figure 12 and Figure 13 The first frame 10 includes a first side frame 11 and a first back cover 12 arranged adjacent to each other. The second frame 20 includes a second side frame 21 and a second back cover 22 arranged adjacent to each other. The at least two antenna clusters 40 include a first antenna cluster 401 and a second antenna cluster 402. The first antenna cluster 401 includes a first antenna 41 disposed at the first side frame 11. The first antenna cluster 401 includes a second antenna 42 disposed at the second side frame 21. The second antenna cluster 402 includes a first antenna 41 disposed at the first back cover 12. The second antenna cluster 402 includes a second antenna 42 disposed at the second back cover 22.

[0090] Both the first back cover 12 and the second back cover 22 can be made of non-metallic materials, which can reduce the loss of the antenna's radiation performance.

[0091] In this embodiment of the application, antennas are provided at the first frame 11, the first back cover 12, the second frame 21, and the second back cover 22, thereby further enhancing the radiation performance of the antennas of the electronic device.

[0092] It should be noted that the first antenna cluster 401, including the first antenna 41 and the second antenna 42, can form a co-frequency antenna cluster, and the second antenna cluster 402, including the first antenna 41 and the second antenna 42, can form another co-frequency antenna cluster. The first antenna cluster 401 and the second antenna cluster 402 can cooperate to enable the electronic device to operate in a 2x2 multiple input multiple output (MIMO) mode.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, wherein the electronic device is a rollable screen electronic device, characterized in that, The electronic device includes: a first frame, a second frame, a flexible screen, and an antenna cluster. One end of the flexible screen is connected to the first frame, and the other end of the flexible screen is connected to the second frame. The second frame and the first frame can switch between a first state and a second state. The antenna cluster includes a first antenna and a second antenna. The first antenna is disposed on the first frame, and the second antenna is disposed on the second frame. Both the first antenna and the second antenna are connected to a feed point. When the second frame and the first frame are in the first state, the flexible screen is at least partially housed in the first frame, the first antenna and the second antenna are at least partially opposite to each other, and the first antenna and the second antenna are spaced apart. When the second frame and the first frame are in the second state, the flexible screen is located outside the first frame, the first antenna and the second antenna are misaligned and spaced apart, both the first antenna and the second antenna are in working state, and the working frequencies of the first antenna and the second antenna at least partially overlap. When the second frame and the first frame are in the first state, the vertical projection of the second antenna on the plane where the first antenna is located coincides with the first antenna; There is a first gap between the first end of the first antenna and the first frame, a second gap between the second end of the first antenna and the second frame, and a third gap between the first end of the second antenna and the second frame. When the second frame and the first frame are in the first state, the vertical projection of the third gap on the plane where the first antenna is located is within the second gap; When the second frame and the first frame are in the second state, the vertical projection of the second antenna on the plane where the first antenna is located and the first antenna are symmetrically distributed about the second gap.

2. The electronic device according to claim 1, characterized in that, The first antenna is connected to a first feed point, and the second antenna is connected to a second feed point.

3. The electronic device according to claim 2, characterized in that, The electronic device further includes an RF feed point, a first switch, a first impedance matching circuit, a second switch, a second impedance matching circuit, a power divider, a phase shifter, and a third switch. The RF feed point is electrically connected to a first terminal of the first switch. The second terminal of the first switch is electrically connected to a third terminal of the second switch via the first impedance matching circuit. The fourth terminal of the second switch is electrically connected to the antenna feed point of the first antenna. The fifth terminal of the first switch is electrically connected to the power divider via the second impedance matching circuit. The power divider is electrically connected to a sixth terminal of the second switch via the phase shifter. The power divider is also electrically connected to a seventh terminal of the third switch. The eighth terminal of the third switch is electrically connected to the antenna feed point of the second antenna. When the second frame and the first frame are in the first state, the first end of the first switch is electrically connected to the second end of the first switch, and the first end of the first switch is disconnected from the fifth end of the first switch; the fourth end of the second switch is electrically connected to the third end of the second switch, and the fourth end of the second switch is disconnected from the sixth end of the second switch; the seventh end of the third switch and the eighth end of the third switch are disconnected. When the second frame and the first frame are in the second state, the first end of the first switch is electrically connected to the fifth end of the first switch, and the first end of the first switch is disconnected from the second end of the first switch. The fourth end of the second switch is electrically connected to the sixth end of the second switch, and the fourth end of the second switch is disconnected from the third end of the second switch. The seventh end of the third switch and the eighth end of the third switch are closed.

4. The electronic device according to claim 3, characterized in that, The second antenna is grounded via the fourth switch; Specifically, when the second frame and the first frame are in the first state, the fourth switch is open; when the second frame and the first frame are in the second state, the fourth switch is closed.

5. The electronic device according to claim 1, characterized in that, The electronic device further includes a flexible circuit board, on which the feed line of at least one of the first antenna and the second antenna is located.

6. The electronic device according to any one of claims 1 to 5, characterized in that, When the second frame and the first frame are in the first state, one of the first antenna and the second antenna is in the working state, and the other is in the non-working state.

7. The electronic device according to any one of claims 1 to 4, characterized in that, The first frame includes a first side frame and a first back cover arranged adjacent to each other, and the second frame includes a second side frame and a second back cover arranged adjacent to each other. The first antenna is disposed at the first frame, and the second antenna is disposed at the second frame; and / or, The first antenna is located at the first back cover, and the second antenna is located at the second back cover.

8. The electronic device according to any one of claims 1 to 2, characterized in that, The number of antenna clusters is at least two, and the at least two antenna clusters are set in different positions.

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