Electronic equipment

Abstract

The invention relates to an electronic device which comprises a middle frame, a circuit board and a conductive structure, the middle frame comprises a supporting part and a frame surrounding the supporting part, the frame is provided with a breaking joint, and the frame located on one side of the breaking joint forms a first antenna radiator; the circuit board is arranged on the supporting part, and an antenna clearance area is arranged on the circuit board; the conductive structure is arranged in the antenna clearance area, and the conductive structure is used for being coupled with the first antenna radiator. Therefore, the radiation capability of the first antenna radiator can be effectively improved, and the antenna performance of the first antenna radiator is improved, so that the communication performance of the electronic equipment is improved.

Description

Technical Field

[0001] This disclosure relates to the field of terminals, and more particularly to an electronic device. Background Technology

[0002] To save internal space in electronic devices, an increasing number of electronic devices are using metal frames as antenna radiators. However, the radiation performance of these metal frames as antenna radiators is poor, thus affecting antenna performance. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this disclosure provides an electronic device.

[0004] This disclosure provides an electronic device, the electronic device including a mid-frame, the mid-frame including a support portion and a frame surrounding the support portion, the frame having a slit, the frame located on one side of the slit constituting a first antenna radiator; a circuit board disposed on the support portion, the circuit board having an antenna clearance area; and a conductive structure disposed in the antenna clearance area, the conductive structure being used to couple with the first antenna radiator.

[0005] In some embodiments of this disclosure, the conductive structure includes a metal wire structure disposed near the edge of the circuit board toward the gap and extending along the extension direction of the edge.

[0006] In some embodiments of this disclosure, the circuit board includes a body and a fixing part connected to the body. The fixing part is disposed on a first edge of the body facing the fracture, corresponding to the fracture position. The fixing part includes a connected second edge, a first side, and a second side. One end of the first side is connected to a first end of the second edge, and the other end of the first side is connected to the first edge. One end of the second side is connected to a second end of the second edge, and the other end of the second side is connected to the first edge. The first side is closer to the first antenna radiator than the second side. The second edge is opposite to the first edge and parallel to the frame. The metal wire structure includes a connected first segment and a second segment. The first segment is disposed near the second edge and extends along the extension direction of the second edge. The second segment is disposed near the first side and extends along the extension direction of the first side.

[0007] In some embodiments of this disclosure, the length of the orthographic projection of the metal wire structure onto the frame is 10 mm to 25 mm.

[0008] In some embodiments of this disclosure, the circuit board includes multiple layers of isolation layers and multiple layers of conductive material layers stacked alternately in sequence, and the conductive structure is disposed on the antenna clearance area of ​​each layer of the conductive material layer.

[0009] In some embodiments of this disclosure, the frame located on the other side of the gap constitutes a second antenna radiator, and the electronic device further includes an isolation section disposed on the circuit board, the isolation section being used to control the current flow direction of the first antenna radiator and the second antenna radiator.

[0010] In some embodiments of this disclosure, the electronic device includes a first scenario where the first antenna radiator is working and a second scenario where the second antenna radiator is working. In the first scenario, the isolation unit switches the first antenna radiator to an open circuit state and switches the second antenna radiator to a short circuit state. In the second scenario, the isolation unit switches the first antenna radiator to a short circuit state and switches the second antenna radiator to an open circuit state.

[0011] In some embodiments of this disclosure, the isolation unit includes: a first isolation unit connected between the feed point and ground of the first antenna radiator, the first isolation unit being configured to switch the first antenna radiator to an open circuit state and switch the second antenna radiator to a short circuit state; and a second isolation unit connected between the feed point and ground of the second antenna radiator, the second isolation unit being configured to switch the first antenna radiator to a short circuit state and switch the second antenna radiator to an open circuit state.

[0012] In some embodiments of this disclosure, the first isolation unit includes an inductor; and / or, the second isolation unit includes a resonant circuit.

[0013] In some embodiments of this disclosure, along the extending direction of the middle frame, the first isolation unit and the second isolation unit are located between the feed terminal of the first antenna radiator and the feed terminal of the second antenna radiator.

[0014] In some embodiments of this disclosure, the electronic device further includes: a first matching circuit connected between the feed point of the first antenna radiator and the first signal source; and a second matching circuit connected between the feed point of the second antenna radiator and the second signal source.

[0015] In some embodiments of this disclosure, the first antenna radiator is used to transmit and receive antenna signals in the UWB band; and / or, the second antenna radiator is used to transmit and receive antenna signals in the intermediate frequency, high frequency, N78 band, and N79 band.

[0016] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0017] The electronic device disclosed herein has a conductive structure disposed in the antenna clearance area of ​​the circuit board. The conductive structure is coupled to a first antenna radiator composed of a frame located on one side of the gap. In this way, the radiation capability of the first antenna radiator can be effectively improved, thereby improving the antenna performance of the first antenna radiator and thus improving the communication performance of the electronic device.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0020] Figure 1 This is a schematic diagram of the structure of an electronic device according to an exemplary embodiment;

[0021] Figure 2 This is a schematic diagram of a partial structure of an electronic device according to an exemplary embodiment;

[0022] Figure 3 This is a schematic diagram of the structure of an electronic device according to another exemplary embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of an electronic device according to yet another exemplary embodiment.

[0024] In the picture:

[0025] 1-Electronic device; 10-Frame; 101-Separation; 11-First antenna radiator; 111-Second rib; 12-Second antenna radiator; 121-First rib; 13-Circuit board; 131-Body; 1311-First edge; 132-Fixing part; 1321-Second edge; 1322-First side; 1323-Second side; 133-First signal source; 134-Second signal source; 14-Conductive structure; 15-Metallic wire structure; 151-First segment; 152-Second segment; 16-First isolation unit; 17-Second isolation unit; 18-First matching circuit; 19-Second matching circuit. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0027] To save internal space in electronic devices, an increasing number of electronic devices use metal frames as antenna radiators. However, the radiation performance of antenna radiators using metal frames in related technologies is poor, thus affecting antenna performance. For example, electronic devices in related technologies generally include a mid-frame and a circuit board. The mid-frame includes a support portion and a frame surrounding the support portion, and the circuit board is mounted on the support portion. The frame constitutes an antenna radiator, or multiple antenna radiators can be formed by creating slots in the frame. To prevent the metal material on the circuit board from affecting the electromagnetic wave radiation of each antenna radiator, an antenna clearance area is usually provided on the circuit board near the antenna radiator. This antenna clearance area refers to an area on the circuit board without any metal material to ensure the normal radiation effect of the antenna radiator. In related technologies, antenna radiators composed of frames only rely on the frame they are located on for radiation, resulting in low radiation performance and thus poor antenna performance.

[0028] To address the aforementioned technical problems, this disclosure provides an electronic device in which a conductive structure is provided in the antenna clearance area of ​​a circuit board. The conductive structure is coupled to a first antenna radiator formed by a frame located on one side of the gap. This effectively improves the radiation capability of the first antenna radiator, thereby enhancing its antenna performance and improving the communication performance of the electronic device.

[0029] An exemplary embodiment of this disclosure provides an electronic device, which may be a mobile device such as a mobile phone (e.g., a foldable phone), a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), or a non-mobile device such as a personal computer (PC), a television (TV), an ATM, or a self-service machine.

[0030] like Figure 1As shown, the electronic device 1 includes a mid-frame, a circuit board 13, and a conductive structure 14. The mid-frame includes a support portion and a frame 10 surrounding the support portion. A slit 101 is provided on the frame 10, and the frame 10 located on one side of the slit 101 constitutes a first antenna radiator 11. Exemplarily, the first antenna radiator 11 may be used for transmitting and receiving antenna signals in the Ultra Wide Band (UWB) frequency band, or it may be used for transmitting and receiving antenna signals in the intermediate frequency band, high frequency band, etc., without specific limitations.

[0031] The circuit board 13 is disposed on the support. An antenna clearance area is provided on the circuit board 13 near the frame 10 or near the first antenna radiator 11. This avoids the metal material on the circuit board 13 from affecting the radiation effect of the first antenna radiator 11, thereby ensuring the radiation performance of the first antenna radiator 11.

[0032] The conductive structure 14 is disposed in the antenna clearance area and is used for coupling with the first antenna radiator 11. For example, the conductive structure 14 can be made of metals such as gold, silver, or copper, or alloys and other materials capable of transmitting current; no specific limitations are imposed here. Furthermore, there are no specific limitations on the shape, length, or other external features of the conductive structure 14; for example, it can be a strip or a line, as long as it can be appropriately disposed in the antenna clearance area and can couple with the first antenna radiator 11 without affecting other normal settings of the electronic device 1.

[0033] By setting a conductive structure 14 in the antenna clearance area, the conductive structure 14 is coupled with the first antenna radiator 11. In this way, the conductive structure 14 can participate in radiation together with the first antenna radiator 11, which can effectively improve the radiation capability of the first antenna radiator 11, thereby improving the antenna performance of the first antenna radiator 11 and thus improving the communication performance of the electronic device 1.

[0034] Combination Figure 1 and Figure 2In one embodiment, the conductive structure 14 includes a metal wire structure 15, which is, for example, the shape of a metal trace in the circuit board 13. The metal wire structure 15 is positioned close to the edge of the circuit board 13 facing the gap 101 and extends along the extension direction of the edge. Exemplarily, the edge of the circuit board 13 facing the gap 101 is also the edge facing the frame 10, which is typically parallel or nearly parallel to the frame 10. Based on this, the metal wire structure 15 is extended along the extension direction of the edge, so that the metal wire structure 15 can also be parallel or nearly parallel to the frame 10. In this way, after the metal wire structure 15 is coupled to the first antenna radiator 11, the direction of radiation is the same as the direction of radiation of the first antenna radiator 11, thereby effectively improving the radiation capability of the first antenna radiator 11.

[0035] By placing the metal wire structure 15 close to the edge of the circuit board 13 facing the gap 101, the vertical distance between the metal wire structure 15 and the gap 101 is reduced, thereby increasing the coupling strength between the metal wire structure 15 and the first antenna radiator 11. This enhances the radiation capability of the metal wire structure 15 and further improves the radiation performance of the first antenna radiator 11. Furthermore, the closer the metal wire structure 15 is to the edge of the circuit board 13 facing the gap 101, the closer the vertical distance between the metal wire structure 15 and the gap 101 becomes, resulting in a higher coupling strength between the metal wire structure 15 and the first antenna radiator 11.

[0036] To facilitate fixing the circuit board 13 or improve the stability of the circuit board 13, combined with Figure 2 In one embodiment, the circuit board 13 includes a body 131 and a fixing part 132 connected to the body 131. The fixing part 132 is disposed on the first edge 1311 of the body 131 facing the break 101, corresponding to the position of the break 101. Exemplarily, the body 131 and the fixing part 132 can be an integral structure or a separate structure connected by means such as adhesive bonding. At least the fixing part 132 is the antenna clearance area of ​​the circuit board 13. Exemplarily, only the area where the fixing part 132 is located may be the antenna clearance area of ​​the circuit board 13, or the fixing part 132 and the part of the body 131 connected to the fixing part 132 may be set as the antenna clearance area according to actual needs.

[0037] The fixing part 132 includes a connected second edge 1321, a first side edge 1322, and a second side edge 1323. One end of the first side edge 1322 is connected to the first end of the second edge 1321, and the other end of the first side edge 1322 is connected to the first edge 1311. One end of the second side edge 1323 is connected to the second end of the second edge 1321, and the other end of the second side edge 1323 is connected to the first edge 1311. Exemplarily, the second edge 1321, the first side edge 1322, the second side edge 1323, and the first edge 1311 can be configured as follows: Figure 2 The trapezoidal shape shown (defined as a regular trapezoidal shape) can also be an inverted trapezoidal shape, or a rectangular shape, etc. The first edge 1311, the first side edge 1322, the second edge 1321, the second side edge 1323 located on one side of the fixing part 132, and the first edge 1311 located on the other side of the fixing part 132 together constitute the edge of the circuit board 13 facing the gap 101.

[0038] The first side 1322 is closer to the first antenna radiator 11 than the second side 1323. The second edge 1321 is opposite to the first edge 1311 and parallel to the frame 10. It should be noted that the second edge 1321 being parallel to the frame 10 does not necessarily mean being completely parallel to the frame 10. The extension direction of the second edge 1321 may slightly intersect the extension direction of the frame 10, so that the second edge 1321 is nearly parallel to the frame 10.

[0039] The metal wire structure 15 includes a first segment 151 and a second segment 152 connected together. The first segment 151 is disposed near the second edge 1321 and extends along the extension direction of the second edge 1321, while the second segment 152 is disposed near the first side 1322 and extends along the extension direction of the first side 1322. This arrangement allows the extension direction of the metal wire structure 15 to be adapted to the edge of the circuit board 13 facing the gap 101, facilitating the placement of the metal wire structure 15 and enhancing its radiation capability. Furthermore, given the same length of the metal wire structure 15 projected onto the frame 10, compared to a configuration where the entire metal wire structure 15 is parallel to the frame 10, the aforementioned configuration results in a longer length for the metal wire structure 15, further enhancing its radiation capability and improving the antenna performance of the first antenna radiator 11, thereby effectively improving the communication performance of the electronic device 1.

[0040] In one embodiment, the length of the orthographic projection of the metal wire structure 15 onto the frame 10 is 10mm to 25mm, for example, 15mm or 20mm. This improves the radiation performance of the first antenna radiator 11. For example, when the first antenna radiator 11 is used to transmit and receive UWB band antenna signals, the commonly used frequency for the UWB band is 8GHz. Simulation tests show that when the length of the orthographic projection of the metal wire structure 15 onto the frame 10 is in the range of 10mm to 25mm, the radiation performance in the UWB band is better.

[0041] In one embodiment, the circuit board 13 includes multiple layers of insulating layers and multiple layers of conductive material layers stacked alternately in sequence. The insulating layers may be, for example, ink layers, and the conductive material layers may be, for example, polyimide film (MPI) layers with metal traces for connecting various devices. That is, the circuit board 13 includes multiple layers of conductive material layers, with adjacent layers isolated by an insulating layer.

[0042] Conductive structures 14 are provided in the antenna clearance area of ​​each conductive material layer. This arrangement can further improve the radiation performance of the first antenna radiator 11.

[0043] Combination Figure 3 In one embodiment, the frame 10 located on the other side of the gap 101 constitutes a second antenna radiator 12. For example, the second antenna radiator 12 may be an IFA antenna, used to transmit and receive antenna signals in the intermediate frequency band, high frequency band, N78 band and N79 band, etc., without specific limitations.

[0044] The electronic device 1 also includes an isolation unit disposed on the circuit board 13. The isolation unit is used to control the current flow direction of the first antenna radiator 11 and the second antenna radiator 12. For example, when the second antenna radiator 12 is in operation, the isolation unit controls the current flow direction of the first antenna radiator 11 and the second antenna radiator 12, so that the first antenna radiator 11 can act as a parasitic branch of the second antenna radiator 12, allowing the first antenna radiator 11 to participate in the radiation of the second antenna radiator 12, thereby meeting the requirements of different antenna performance.

[0045] For example, the second antenna radiator 12 integrates the MHB, N78, and N79 frequency bands, meaning that the second antenna radiator 12 can transmit and receive antenna signals in the MHB, N78, and N79 frequency bands. The intermediate frequency (IF) is a quarter-wavelength mode from the first rib 121 of the second antenna radiator 12 to its end (the end of the second antenna radiator 12 facing the slot 101). That is, when transmitting and receiving IF band antenna signals, the current on the frame 10 from the first rib 121 to the end of the second antenna radiator 12 participates in the radiation. The high frequency (HF) is a quarter-wavelength mode from the feed point of the second antenna radiator 12 to its end. That is, when transmitting and receiving HF band antenna signals, the current on the frame 10 from the feed point of the second antenna radiator 12 to its end participates in the radiation. Both the N78 and N79 bands are quarter-wavelength modes from the feed point of the second antenna radiator 12 to its end, and from the second rib 111 of the first antenna radiator 11 to its end (the end of the first antenna radiator facing the gap 101). That is, when transmitting and receiving antenna signals in the N78 and N79 bands, the current on the frame 10 from the feed point of the second antenna radiator 12 to its end, and from the second rib 111 of the first antenna radiator 11 to its end, participates in the radiation.

[0046] Similarly, when the first antenna radiator 11 is in operation, the current flow of the first antenna radiator 11 and the second antenna radiator 12 is controlled by the isolation part, so that the second antenna radiator 12 can act as a parasitic branch of the first antenna radiator 11, so that the second antenna radiator 12 can participate in the radiation of the first antenna radiator 11, thereby meeting the requirements of different antenna performance.

[0047] By adopting this configuration, the antenna performance of the first antenna radiator 11 and the second antenna radiator 12 can be further improved through cross-coupling. This eliminates the need for additional parasitic branches, reduces the space occupied by the electronic device 1, simplifies the structure of the electronic device 1, and enables it to have higher combining performance, thereby further improving the communication performance of the electronic device 1.

[0048] In one embodiment, the electronic device 1 includes a first scenario where the first antenna radiator 11 is operating and a second scenario where the second antenna radiator 12 is operating. In the first scenario, the isolation unit switches the first antenna radiator 11 to an open-circuit state and the second antenna radiator 12 to a short-circuit state. This allows the second antenna radiator 12 to be used as a parasitic extension of the first antenna radiator 11, thereby improving the antenna performance of the first antenna radiator 11. In the second scenario, the isolation unit switches the first antenna radiator 11 to a short-circuit state and the second antenna radiator 12 to an open-circuit state. This allows the first antenna radiator 11 to be used as a parasitic extension of the second antenna radiator 12, thereby improving the antenna performance of the second antenna radiator 12. In this way, by cross-coupling the first antenna radiator 11 and the second antenna radiator 12, the antenna performance of the first antenna radiator 11 and the second antenna radiator 12 can be further improved without adding more parasitic branches, reducing the space occupied by the electronic device 1. This not only makes the structure of the electronic device 1 simpler, but also enables the electronic device 1 to have higher combining performance, thereby further improving the communication performance of the electronic device 1.

[0049] For example, the isolation part in this embodiment may be an inductor, a resonant circuit or other active device, etc., and is not specifically limited here, as long as it can achieve the above-mentioned function.

[0050] Combination Figure 4 In one embodiment, the isolation unit includes a first isolation unit 16 and a second isolation unit 17. The first isolation unit 16 is connected between the feed point and ground of the first antenna radiator 11, and is configured to switch the first antenna radiator 11 to an open-circuit state and the second antenna radiator 12 to a short-circuit state. The second isolation unit 17 is connected between the feed point and ground of the second antenna radiator 12, and is configured to switch the first antenna radiator 11 to a short-circuit state and the second antenna radiator 12 to an open-circuit state.

[0051] In the first scenario when the first antenna radiator 11 is working, the second isolation unit 17 connected to the second antenna radiator 12 can provide a current return path for the first antenna radiator 11, so that the second antenna radiation acts as a parasitic branch of the first antenna radiator 11, thereby improving the antenna performance of the first antenna radiator 11.

[0052] In the second scenario when the second antenna radiator 12 is working, the first isolation unit 16 connected to the first antenna radiator 11 can provide a current return path to the ground for the second antenna radiator 12, so that the first antenna radiator 11 acts as a parasitic branch of the second antenna radiator 12, thereby improving the antenna performance of the second antenna radiator 12.

[0053] This configuration simplifies the structure of the isolation section, making it easier to install. Furthermore, by cross-coupling the first antenna radiator 11 and the second antenna radiator 12, the antenna performance of both can be further improved without adding more parasitic stubs, reducing the space occupied by the electronic device 1. This not only simplifies the structure of the electronic device 1 but also enhances its combining performance, thereby further improving its communication capabilities.

[0054] In one embodiment, the first isolation unit 16 includes an inductor. Exemplarily, by setting the inductance value, the first antenna radiator 11 is effectively treated as an open circuit, and the second antenna radiator 12 is effectively treated as a short circuit, thus achieving the isolation function of the first isolation unit 16. For example, when the first antenna radiator 11 is a UWB antenna and the second antenna radiator 12 is an MHB antenna, the frequency of the UWB antenna is around 8 GHz. By setting the inductance value to 20,000 Henry, this inductance value acts as an open circuit at the 8 GHz frequency and as a short circuit at the mid-to-high frequency band. This design simplifies the structure of the first isolation unit 16 and facilitates its installation.

[0055] In another embodiment, the second isolation unit 17 includes a resonant circuit. Exemplarily, the resonant circuit is equivalent to an inductor, thereby enabling the second isolation unit 17 to perform its isolation function. This means the first antenna radiator 11 is equivalent to a short-circuit state, and the second antenna radiator 12 is equivalent to an open-circuit state. This is a conventional design in the art and will not be elaborated upon here. This makes the structure of the second isolation unit 17 simple and easy to install.

[0056] In another embodiment, the first isolation unit 16 includes an inductor, and the second isolation unit 17 includes a resonant circuit. This simplifies the structure of the first isolation unit 16 and the second isolation unit 17, making them easier to install.

[0057] Combination Figure 4 In one embodiment, along the extension direction of the middle frame, the first isolation unit 16 and the second isolation unit 17 are located between the feed terminal of the first antenna radiator 11 and the feed terminal of the second antenna radiator 12. That is, the first isolation unit 16 is located on the side of the first antenna radiator 11 closer to the second antenna radiator 12, and the second isolation unit 17 is located on the side of the second antenna radiator 12 closer to the first antenna radiator 11. This arrangement shortens the grounding path of the first antenna radiator 11 and the second antenna radiator 12, thereby improving the grounding effect of the first antenna radiator 11 and the second antenna radiator 12, and thus contributing to improved antenna performance.

[0058] Combination Figure 4 In one embodiment, the electronic device 1 further includes a first matching circuit 18 and a second matching circuit 19. The first matching circuit 18 is connected between the feed point of the first antenna radiator 11 and the first signal source 133. The first matching circuit 18 tunes the first antenna radiator 11 to the desired frequency band, reducing signal transmission loss during signal transmission in its current frequency band, thereby improving the antenna performance of the first antenna radiator 11. The second matching circuit 19 is connected between the feed point of the second antenna radiator 12 and the second signal source 134. The second matching circuit 19 tunes the second antenna radiator 12 to the desired frequency band, reducing signal transmission loss during signal transmission in its current frequency band, thereby improving the antenna performance of the second antenna radiator 12.

[0059] In one embodiment, the first antenna radiator 11 is used to transmit and receive antenna signals in the UWB band. Because the UWB band has characteristics such as high-precision positioning and high-speed data transmission capabilities, it is integrated into the electronic device 1 to enable the electronic device 1 to possess high-performance UWB technology, thereby better meeting user needs and improving the user experience. For example, it allows encrypted communication between the user and the vehicle. UWB technology, acting as a contactless key, enables seamless interaction between the mobile phone and the vehicle's locking and ignition systems, providing secure and convenient access without the need for traditional physical keys.

[0060] In another embodiment, the second antenna radiator 12 is used to transmit and receive antenna signals in the intermediate frequency (IF), high frequency (HF), N78 band, and N79 band. Integrating the IF, HF, N78 band, and N79 band into the second antenna radiator 12 reduces the use of antenna stubs, thereby reducing the space occupied inside the electronic device 1 and facilitating the miniaturization design of the electronic device 1.

[0061] In another embodiment, the first antenna radiator 11 is used to transmit and receive antenna signals in the UWB band, and the second antenna radiator 12 is used to transmit and receive antenna signals in the intermediate frequency, high frequency, N78 band and N79 band.

[0062] In this embodiment, when the first antenna radiator 11 operates to transmit and receive antenna signals in the UWB band, it can couple with the conductive structure 14 on the antenna clearance area of ​​the circuit board 13. The conductive structure 14 can participate in radiation together with the first antenna radiator 11, effectively improving the radiation capability of the first antenna radiator 11 and thus enhancing its antenna performance. Simultaneously, the second isolation unit 17 connected to the second antenna radiator 12 provides a current return path for the first antenna radiator 11, allowing the second antenna radiation to act as a parasitic extension of the first antenna radiator 11, thereby improving its antenna performance.

[0063] When the second antenna radiator 12 operates to transmit and receive antenna signals in the intermediate frequency, high frequency, N78 band, and N79 band, the first isolation unit 16 connected to the first antenna radiator 11 can provide a current return path to the second antenna radiator 12, so that the first antenna radiator 11 acts as a parasitic branch of the second antenna radiator 12, thereby improving the antenna performance of the second antenna radiator 12.

[0064] Combination Figure 3 and Figure 4 The intermediate frequency (IF) is a quarter-wavelength mode from the first rib 121 of the second antenna radiator 12 to the end of the second antenna radiator 12 (the end of the second antenna radiator 12 facing the gap 101). That is, when transmitting and receiving antenna signals in the intermediate frequency band, the current on the frame 10 from the first rib 121 to the end of the second antenna radiator 12 participates in the radiation.

[0065] The high frequency is a quarter-wavelength mode from the feed point of the second antenna radiator 12 to the end of the second antenna radiator 12. That is, when transmitting and receiving antenna signals in the high frequency band, the current on the frame 10 from the feed point of the second antenna radiator 12 to the end of the second antenna radiator 12 participates in the radiation.

[0066] Both the N78 and N79 bands are quarter-wavelength modes from the feed point of the second antenna radiator 12 to its end, and from the second rib 111 of the first antenna radiator 11 to its end (the end of the first antenna radiator facing the gap 101). That is, when transmitting and receiving antenna signals in the N78 and N79 bands, the current on the frame 10 from the feed point of the second antenna radiator 12 to its end, and from the second rib 111 of the first antenna radiator 11 to its end, participates in the radiation.

[0067] The UWB band includes the wavelength mode of the first antenna radiator 11 and the quarter-wavelength mode from the end of the second antenna radiator 12 to the feed point of the second antenna radiator 12.

[0068] This design not only improves the performance of the UWB antenna by coupling the UWB band through the conductive structure 14, but also enhances the cross-coupling of the UWB band, intermediate frequency (IF), high frequency (HF), N78 band, and N79 band through the first isolation unit 16 and the second isolation unit 17, further improving the performance of these bands. Furthermore, this arrangement achieves the function of a parasitic stub while integrating the UWB antenna into the electronic device 1, eliminating the need for additional antennas directly serving as UWB antennas in the antenna layout. This simplifies the structure of the electronic device 1, reduces its internal space requirements, and improves its combining performance.

[0069] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0070] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that, The electronic device includes: The middle frame includes a support portion and a frame surrounding the support portion. A slit is provided on the frame, and the frame located on one side of the slit constitutes a first antenna radiator. A circuit board is disposed on the support portion, and an antenna clearance area is provided on the circuit board; A conductive structure is disposed in the antenna clearance area, and the conductive structure is used to couple with the first antenna radiator.

2. The electronic device according to claim 1, characterized in that, The conductive structure includes a metal wire structure disposed near the edge of the circuit board toward the gap and extending along the extension direction of the edge.

3. The electronic device according to claim 2, characterized in that, The circuit board includes a body and a fixing part connected to the body. The fixing part is disposed on the first edge of the body facing the fracture, corresponding to the fracture position. The fixing part includes a connected second edge, a first side and a second side. One end of the first side is connected to the first end of the second edge and the other end of the first side is connected to the first edge. One end of the second side is connected to the second end of the second edge and the other end of the second side is connected to the first edge. The first side is closer to the first antenna radiator than the second side. The second edge is opposite to the first edge and parallel to the frame. The metal wire structure includes a first segment and a second segment connected together. The first segment is disposed near the second edge and extends along the extension direction of the second edge, and the second segment is disposed near the first side and extends along the extension direction of the first side.

4. The electronic device according to claim 2, characterized in that, The length of the orthographic projection of the metal wire structure onto the frame is 10mm to 25mm.

5. The electronic device according to claim 1, characterized in that, The circuit board includes multiple layers of isolation layers and multiple layers of conductive material layers stacked alternately in sequence, and the conductive structure is provided on the antenna clearance area of ​​each layer of the conductive material layer.

6. The electronic device according to any one of claims 1 to 5, characterized in that, The frame located on the other side of the fracture constitutes a second antenna radiator, and the electronic device further includes: An isolation section is disposed on the circuit board, and the isolation section is used to control the current flow direction of the first antenna radiator and the second antenna radiator.

7. The electronic device according to claim 6, characterized in that, The electronic device includes a first scenario when the first antenna radiator is working and a second scenario when the second antenna radiator is working. In the first scenario, the isolation unit switches the first antenna radiator to an open circuit state and switches the second antenna radiator to a short circuit state. In the second scenario, the isolation unit switches the first antenna radiator to a short circuit state and switches the second antenna radiator to an open circuit state.

8. The electronic device according to claim 7, characterized in that, The isolation unit includes: A first isolation unit is connected between the feed point and the ground of the first antenna radiator. The first isolation unit is configured to switch the first antenna radiator to an open circuit state and switch the second antenna radiator to a short circuit state. The second isolation unit is connected between the feed point of the second antenna radiator and the ground terminal. The second isolation unit is configured to switch the first antenna radiator to a short-circuit state and the second antenna radiator to an open-circuit state.

9. The electronic device according to claim 8, characterized in that, The first isolation unit includes an inductor; and / or, the second isolation unit includes a resonant circuit.

10. The electronic device according to claim 8, characterized in that, Along the extension direction of the middle frame, the first isolation unit and the second isolation unit are located between the feed terminal of the first antenna radiator and the feed terminal of the second antenna radiator.

11. The electronic device according to claim 6, characterized in that, The electronic device also includes: A first matching circuit is connected between the feed point of the first antenna radiator and the first signal source. The second matching circuit is connected between the feed point of the second antenna radiator and the second signal source.

12. The electronic device according to claim 6, characterized in that, The first antenna radiator is used to transmit and receive antenna signals in the UWB band; and / or, The second antenna radiator is used to transmit and receive antenna signals in the intermediate frequency, high frequency, N78 band, and N79 band.

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