CN112542679A

CN112542679A - Electronic device

Info

Publication number: CN112542679A
Application number: CN202011500996.4A
Authority: CN
Inventors: 林强
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-23
Anticipated expiration: 2040-12-18
Also published as: WO2022127727A1; CN112542679B

Abstract

The application discloses electronic equipment includes: a frame; the first broken joint and the second broken joint are arranged on the frame; the first key is arranged on the part, positioned between the first broken joint and the second broken joint, of the frame; the part of the frame between the first broken joint and the second broken joint forms an antenna working in a first frequency band and a second frequency band, and the first frequency band is different from the second frequency band. This application sets up first crack and second crack respectively in the both sides of first button on the frame, and the part between two cracks forms the antenna of work in first frequency channel and second frequency channel on the frame, is favorable to increasing the isolation between first frequency channel and the second frequency channel. And first breaking joint and second breaking joint set up on the frame, just also be favorable to setting up the gap department between frame and panel, mainboard with the antenna, avoided parts such as battery, speaker, found suitable position for the antenna and installed, occupation space is few.

Description

Electronic device

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to electronic equipment.

Background

With the development of the times, mobile phones become almost a necessary device for human hands, and the functions that the mobile phones can realize are more and more. The realization of multiple functions on the mobile phone can not leave the electric connection between the mobile phone and various networks, and especially with the coming of the 5G era, the design of the mobile phone antenna presents greater challenges. In the limited space of the mobile phone, not only a 5GSub-6G frequency band needs to be added on the basis of a traditional 4G frequency band, but also the MIMO technology and the design of antennas such as WIFI _2G &5G 2x2, GPS, L1& L5 and the like need to be considered. In addition, the mobile phone not only needs to be capable of making so many antennas, but also needs to work independently and not interfere with each other.

In the related art, the antennas of the mobile phone are mainly distributed on the upper half part and the bottom part of the mobile phone, and the space occupied by the antenna layout is less than half of the volume of the whole mobile phone, which is mainly because the feed end of the antenna needs to be placed on a PCB board to excite the antenna, and the mobile phone has a large half of the space occupied by related functional modules, such as a battery, a key, a loudspeaker, a receiver, a camera and the like, which also limit the layout of the antenna.

In summary, how to find a suitable antenna with a newly added 5G frequency band in a spatial arrangement in a compact overall environment, the problem of isolation between the 5G antenna and the 4G antenna is also solved, which becomes a forward direction of the antenna system design of the 5G mobile phone.

Disclosure of Invention

The application aims to provide an electronic device, which at least solves one of the problems of the position arrangement of a 5G antenna and the isolation between the 5G antenna and a 4G antenna.

In order to solve the technical problem, the present application is implemented as follows:

an embodiment of the present application provides an electronic device, including:

a frame;

the first broken joint and the second broken joint are arranged on the frame;

the first key is arranged on the part, positioned between the first broken joint and the second broken joint, of the frame;

the part of the frame between the first broken joint and the second broken joint forms an antenna working in a first frequency band and a second frequency band, and the first frequency band is different from the second frequency band.

In the above embodiment, the first key is arranged on the portion, located between the first broken joint and the second broken joint, of the frame, so that a larger distance is ensured between the first broken joint and the second broken joint. And the part of the frame between the first broken joint and the second broken joint forms an antenna working in a first frequency band and a second frequency band, so that the first frequency band and the second frequency band can respectively radiate signals from the first broken joint and the second broken joint. And after a larger distance is set between the first broken joint and the second broken joint, the isolation between the two frequency bands is increased and promoted, and the mutual working influence and interference are reduced. Thus, when the first frequency band and the second frequency band are different, the first frequency band and the second frequency band can work independently.

In addition, because the first broken joint and the second broken joint are arranged on the frame and are arranged on two sides of the first key, at least part of the antenna can be arranged at the gap between the frame and the battery panel and between the main boards, so that the battery, the loudspeaker, the receiver and other parts are avoided, or at least part of the antenna is directly arranged as one part of the frame, therefore, under the condition that the size of the electronic equipment is not required to be increased, a proper position is found for the antenna working in the first frequency band and the second frequency band to be installed, the occupied space is small, and the original configuration of each part on the electronic equipment is not required to be changed basically.

Furthermore, the first broken joint and the second broken joint are respectively arranged on two sides of the first key, when the antenna radiates signals outwards, the signals of the first frequency band can be radiated from the first broken joint, and the signals of the second frequency band can be radiated from the second broken joint, so that mutual interference between the two frequency bands can be reduced, and the working independence between the first frequency band and the second frequency band can be improved.

Additional aspects and advantages of the present 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 the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a partial structure of an electronic device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an antenna structure of an electronic device according to an embodiment of the application;

fig. 3 is a diagram of S11 parameters for a first antenna of an electronic device according to an embodiment of the present application;

FIG. 4 is a system efficiency graph of operating frequency bands of a first antenna of an electronic device according to an embodiment of the application;

FIG. 5 is a graph of S11 parameters and system efficiency for a second antenna of an electronic device according to an embodiment of the present application;

fig. 6 is a schematic diagram of isolation of a first antenna and a second antenna of an electronic device according to an embodiment of the application.

Reference numerals:

10 electronic equipment, a frame 100, a first key 102, a first antenna 104, a first grounding part 106, a first broken seam 108, a first feeding part 110, a second grounding part 112, a first matching network 114, a switch switching network 116, a second key 140, a second antenna 142, a third grounding part 144, a second broken seam 146, a second feeding part 148, a fourth grounding part 150, a second matching network 152, a battery compartment area 180, a main board area 182 and a boundary area 184.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "length," "top," "bottom," "inner," "outer," etc. indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

An electronic device 10 according to an embodiment of the present application is described below with reference to fig. 1 to 6.

As shown in fig. 1 and 2, the electronic device 10 according to some embodiments of the present application includes a bezel 100, a first key 102, an antenna, a first break 108, and a second break 146.

The first break 108, the second break 146, and the first key 102 are disposed on the bezel 100. The first key 102 is located between the first seam 108 and the second seam 146. The portion of the bezel 100 between the first and

second slots

108, 146 forms an antenna operating in a first frequency band and a second frequency band, the first frequency band being different from the second frequency band.

In the above embodiment, the first key 102 is disposed on the portion of the frame 100 between the first fracture 108 and the second fracture 146, which is beneficial to ensure a larger distance between the first fracture 108 and the second fracture 146. And the part of the frame 100 between the first broken joint 108 and the second broken joint 146 forms an antenna working in a first frequency band and a second frequency band, so that the first frequency band and the second frequency band can respectively transmit and receive signals from the first broken joint 108 and the second broken joint 146, and after a large distance is set between the first broken joint 108 and the second broken joint 146, the isolation between the two frequency bands is favorably increased, and the mutual working influence and interference are reduced. Thus, when the first frequency band and the second frequency band are different, the first frequency band and the second frequency band can work independently.

In addition, because the first broken seam 108 and the second broken seam 146 are disposed on the frame 100 and disposed on two sides of the first key 102, it is beneficial to dispose at least a portion of the antenna at a gap between the frame 100 and the battery panel or the motherboard, avoiding components such as a battery, a speaker, a receiver, etc., or dispose at least a portion of the antenna directly as a portion of the frame 100, so that under the condition that the size of the electronic device 10 does not need to be increased, a suitable position is found for the antennas of the first frequency band and the second frequency band to be mounted, and the occupied space is small, and the original configuration of each component on the electronic device 10 does not need to be changed basically.

Further, the first broken joint 108 and the second broken joint 146 are respectively arranged on two sides of the first key 102, when the antenna radiates signals outwards, the first broken joint 108 can radiate signals of a first frequency band, and the second broken joint 146 can radiate signals of a second frequency band, so that mutual interference between the two frequency bands can be reduced, and working independence between the first frequency band and the second frequency band is improved.

In some embodiments, the first gap 108 and the second gap 146 are respectively disposed at an interval from the first key 102, which is beneficial to avoiding the first key 102, avoiding affecting the working stability of the first key 102, being compatible with the requirement of beautifying the appearance of the first key 102, and effectively digging the design space of the antenna.

Further, a second key 140 is disposed on the frame 100. The second key 140 is positioned between the first key 102 and the second break 146. By arranging the second key 140 between the first key 102 and the second break 146, the distance between the first break 108 and the second break 146 is further increased, so that the isolation between the first frequency band and the second frequency band can be correspondingly further increased, and the mutual working influence is reduced.

In some embodiments, one of the first button 102 and the second button 140 is a power-on key of the electronic device 10 to control on/off of the electronic device 10. And the other is a volume key to control the volume of the electronic device 10.

It should be noted that the keys of the electronic device 10, especially a mobile terminal such as a mobile phone, are generally disposed on a longer side of the frame 100. Since the first slit 108 and the second slit 146 are disposed at one side of the first key 102, the antenna is disposed at a longer side of the bezel 100 accordingly. In other words, the antenna is disposed on the longer side of the frame 100, so that the antenna has a larger accommodating space, and is more beneficial to increase the physical distance between the first gap 108 and the second gap 146, thereby further improving the isolation between the first frequency band and the second frequency band.

Further, the electronic device 10 includes a battery compartment area and a motherboard area. The battery compartment area and the main board area are disposed in an area surrounded by the frame 100.

In some embodiments, the first break 108 is located opposite the battery compartment area 180 from the bezel 100. The second break 146 is located opposite the main panel area 182 at the frame 100. It can be understood that, in the electronic device 10, the space occupied by the battery and the motherboard is larger, the first fracture 108 is located at the position of the frame 100 opposite to the battery compartment area 180, and the second fracture 146 is located at the position of the frame 100 opposite to the motherboard area 182, which is beneficial to ensuring a larger distance between the first fracture 108 and the second fracture 146, so as to maintain a better isolation between the first frequency band and the second frequency band.

Further, as shown in fig. 1 and 2, in the electronic device 10 according to other embodiments of the present application, the antenna includes a first antenna 104 operating in a first frequency band and a second antenna 142 operating in a second frequency band.

The first antenna 104 may radiate signals using the first break 108 and the second antenna 142 may radiate signals using the second break 146.

After the first antenna 104 is designed, the second antenna 142 is designed for supplement, which is beneficial to realizing the antenna system scheme with the coexistence of the first frequency band and the second frequency band. Further, the first frequency band is a 4G frequency band, that is, the first antenna 104 operates in the 4G frequency band. The second frequency band is a 5G frequency band, i.e., the second antenna 142 operates in the 5G frequency band. Therefore, the antenna system scheme with the coexistence of the 4G/5G frequency bands can be realized.

Specifically, the first antenna 104 includes a first feed 110. The first power feeding unit 110 is provided at a position corresponding to the first button 102. And the first feeding portion 110 is located in the main board region 182, so that the first feeding portion 110 can be integrated on the main board in the main board region 182, and the circuit of the first feeding portion 110 can be avoided from being too long, which is beneficial to simplifying the circuit structure and saving the space.

In some embodiments, the first break 108 is located on the bezel 100 opposite the battery compartment area 180 and the second break 146 is located on the bezel 100 opposite the motherboard area 182. It will be appreciated that the electronic device 10, in which the battery and the motherboard occupy a larger space, the first break 108 is opposite the battery compartment area 180 and the second break 146 is opposite the motherboard area 182, is advantageous in ensuring that there is a larger distance between the first break 108 and the second break 146, so that there is enough physical distance between the first antenna 104 and the second antenna 142, and thus, a better isolation between the first antenna 104 and the second antenna 142 is maintained.

The first antenna 104 further includes a first ground portion 106, a second ground portion 112, a first main structure, and a first parasitic structure.

Specifically, the first ground portion 106 and the second ground portion 112 are both provided on the frame 100. The first grounding portion 106 is located on a side of the first broken seam 108 away from the first key 102. The second ground portion 112 is provided on a side of the first power feeding portion 110 away from the first ground portion 106. The first main structure is formed on the frame 100 from the second grounding portion 112 to the first broken line 108. A portion of the first main structure is disposed opposite the battery compartment area 180 and another portion of the first main structure is disposed opposite the main plate area 182. Thus, the first main structure spans two areas, namely the battery compartment area 180 and the main board area 182, and is formed by a part of the frame 100, so that a part of the first antenna 104 does not occupy other extra space, thereby saving space. Accordingly, a first parasitic structure is formed on the portion of the frame 100 from the first grounding portion 106 to the first broken seam 108, and the first parasitic structure is disposed opposite to the battery compartment area 180. That is, the first parasitic structure is also formed by a portion of the bezel 100, and also does not occupy additional space. Therefore, the first antenna 104 can be disposed with a sufficient space to ensure stability and reliability of its operation.

Further, the first antenna 104 further includes a first matching network 114 and a switching network 116. The switching network 116 is connected to the first matching network 114. Further, the first matching network 114 and the switch switching network 116 are disposed between the first feeding portion 110 and the frame 100, and both the first matching network 114 and the switch switching network 116 are connected to the first feeding portion 110 and also connected to the frame 100. With the structure, the current of 1/4 wavelength modes from the first broken joint 108 to the second grounding part 112 and from the first broken joint 108 to the first feeding part 110 can be excited to cover the MHB frequency band, meanwhile, the parasitic resonance is always in the B41 frequency band, the switch switching influence is not large, and the CA requirements of B3_41 and B39_41 can be met.

Further, the distance between the first broken seam 108 and the first key 102 is 4mm to 6mm, for example, one of 4mm, 5mm, and 6 mm. The distance between the first break 108 and the first power feed portion 110 is 12mm to 16mm, for example, one of 13mm, 14mm, and 15 mm. The distance between the first break 108 and the first power feeding unit 110 is a distance along the direction from the first key 102 to the second key 140. The distance between the first ground portion 106 and the first broken seam 108 is 12mm to 16mm, for example, one of 13mm, 14.3mm, and 15 mm. The distance between the second ground portion 112 and the first power feeding portion 110 is 8mm to 10mm, for example, one of 8mm, 9mm, and 10 mm.

It will be appreciated that the above-mentioned size limitation can ensure the radiation performance of the first antenna 104, i.e. can ensure the stability and reliability of the signal received and transmitted by the antenna. The above size limitations are mainly determined by the performance requirements of the first antenna 104 itself, and are not directly related to the size of the electronic device 10.

The second antenna 142 includes a second feeding portion 148, and the second feeding portion 148 is disposed at a position corresponding to the second key 140 and may be located in the main board region.

By arranging the first feeding portion 110 at a position corresponding to the first key 102 and the second feeding portion 148 at a position corresponding to the second key 140, a larger distance is provided between the first feeding portion 110 and the second feeding portion 148, and accordingly, a larger distance can be provided between the first antenna 104 and the second antenna 142.

Further, the second feed 148 is located within the motherboard region 182. With such a structure, the second feeding portion 148 is conveniently integrated on the main board in the main board region 182, and the circuit of the second feeding portion 148 can be prevented from being too long, which is beneficial to simplifying the circuit structure and saving the space.

The second antenna 142 further includes a third ground portion 144, a fourth ground portion 150, a second main structure, a second parasitic structure, and a second matching network 152.

Specifically, the third grounding portion 144 is disposed on the frame 100 and located on a side of the second slit 146 away from the second key 140. The fourth ground section 150 is also provided on the bezel 100, and is provided on a side of the second power supply section 148 remote from the third ground section 144. And the distance between the fourth grounding portion 150 and the second feeding portion 148 is smaller than the distance between the second grounding portion 112 and the second feeding portion 148, which is beneficial to ensuring that the fourth grounding portion 150 can be closer to the second feeding portion 148, and further beneficial to ensuring that the first antenna 104 and the second antenna 142 can keep a certain physical distance without crossing together, thereby ensuring that the two antennas can have better isolation.

In some specific applications, the distance between the second grounding portion 112 and the fourth grounding portion 150 is greater than or equal to 5 mm. It can be seen through the detection that, when the distance between the second ground part 112 and the fourth ground part 150 is greater than 5mm, the isolation between the first antenna 104 and the second antenna 142 is less than-12 dB. And when the distance between the second ground part 112 and the fourth ground part 150 is greater than 12mm, the isolation between the first antenna 104 and the second antenna 142 is less than-16 dB. That is, as the physical distance between the first antenna 104 and the second antenna 142 increases, the isolation between the two is correspondingly improved. In addition, the structure between the second grounding portion 112 and the fourth grounding portion 150 is also a key implementation structure for the antenna scheme to be compatible with the appearance of the keys, and the distance between the two broken seams and each key can be correspondingly adjusted by adjusting the distance between the second grounding portion 112 and the fourth grounding portion 150, so that the layout of each key can be compatible, and the appearance of the whole machine can be beautified.

Further, a second main structure is formed on the frame 100 from the fourth grounding portion 150 to the second broken line 146. The second main structural site is disposed opposite the main board area 182. A second parasitic structure is formed on the frame 100 from the third grounding portion 144 to the second broken seam 146. The second parasitic structure is disposed opposite to the main board region 182. The second main structure and the second parasitic structure are disposed opposite to the main board region 182, such that the second main structure and the second parasitic structure are also formed by a portion of the bezel 100, such that the two portions of the first antenna 104 do not occupy other extra space, thereby saving space. The second main structure and the second parasitic structure are both disposed opposite to the main board region 182, and therefore, most of the second antenna 142 is opposite to the main board region 182, and is significantly separated from the first antenna 104, so that the second antenna 142 can have sufficient space to be disposed to ensure stability and reliability of its operation.

The second matching network 152 is disposed between the second feeding portion 148 and the bezel 100, so that three 1/4 wavelength mode currents from the second grounding portion 112 to the second slit 146, from the second feeding portion 148 to the second slit 146, and from the second slit 146 to the third grounding portion 144 can be excited to cover three bands N41/78/79 of sub 6G.

Further, the distance between the second slit 146 and the second feeding portion 148 is 5mm to 9mm, for example, one of 6mm, 6.7mm, and 8 mm. The distance between the second slit 146 and the second power feeding portion 148 is a distance along the direction from the first key 102 to the second key 140. The distance between the third land portion 144 and the second broken seam 146 is 3mm to 6mm, for example, one of 3mm, 4mm, 4.7mm, and 5 mm. The distance between the second broken seam 146 and the fourth ground portion 150 is 11mm to 15mm, for example, one of 12mm, 13mm, and 14 mm.

It will be appreciated that the above-mentioned size limitation can ensure the radiation performance of the second antenna 142, i.e. can ensure the stability and reliability of the antenna for receiving and transmitting signals. The above size limitations are mainly determined by the performance requirements of the second antenna 142 itself, and are not directly related to the size of the electronic device 10.

In any of the above embodiments, the distance from the first seam 108 to the edge of the bezel 100 is greater than the distance from the first seam 108 to the first key 102. Meanwhile, the distance from the second seam 146 to the edge of the bezel 100 is greater than the distance from the second seam 146 to the second key 140. Thus, the two broken seams are far away from the edge of the frame 100, or the two broken seams are far away from the bottom and the top of the frame 100, so that when a user uses the electronic device 10, the two broken seams are not easily shielded, and the antenna radiation signal is not shielded, so that the antenna performance of the user using the electronic device 10 can be effectively ensured.

In any of the above embodiments, the electronic device 10 comprises at least one of: mobile terminals, tablet computers, notebook computers, televisions, digital cameras, electronic book readers, electronic game machines, personal digital assistants.

The present application will be described below by taking a mobile phone as an example.

The application provides a mobile phone. Under the condition that the functions and the appearances of keys are not influenced, two antennas are designed in an area where the antennas are not easy to design originally, and the two antennas respectively cover a 4G MHB frequency band (the MHB frequency band comprises an MB frequency band and an HB frequency band, the MB frequency band can be 1500 MHZ-2200 MHZ, and the HB frequency band can be 2300 MHZ-2700 MHZ) and a 5G sub-6G frequency band, so that the problem of short space in the design of the 5G mobile phone antenna is solved. The two antennas can not only excite the antenna radiation mode corresponding to the required working frequency band through reasonably designing the antenna structure, the feeding, the grounding and the matching network of the antennas, but also are mutually independent and have better isolation.

Fig. 1 is a partial structural diagram of an electronic device 10 according to an embodiment of the present application. As shown in fig. 1, a frame 100 of the mobile phone is provided with a first key 102 and a second key 140. The first button 102 is a mobile phone power-on key, and the second button 140 is a mobile phone volume key. The first break 108 is disposed on one side of the first button 102, and the second break 146 is disposed on one side of the second button 140 away from the first button 102. The first break 108 and the second break 146 act as critical structures for antenna radiation.

Fig. 2 is a schematic diagram of an antenna structure of the electronic device 10 according to an embodiment of the present application.

As shown in fig. 2, the principle of the whole antenna scheme design is as follows: the first antenna 104 implements the 4G MHB band (B3/2/1/39/40/41) and the second antenna 142 implements the sub-6G band (N41/78/79). The two antennas can independently coexist, namely, the simultaneous operation of the 4G MHB frequency band and the 5G sub-6G frequency band can be realized, and the first antenna 104 can meet B3_41CA and B39_41 CA.

In this application, the mobile phone mainly includes a battery compartment area 180 and a main board area 182. The location between battery compartment area 180 and motherboard area 182 is defined by motherboard area 182 and a demarcation area 184 for battery compartment area 180. The first break 108 and the first parasitic structure are completely distributed in the battery compartment area 180. The first broken seam 108 is located at a distance of about 5mm from the power-on key, that is, about 14mm from the first feeding portion 110, due to the appearance requirement of the first key 102, that is, the distance from the lower side of the first key 102, so that the first antenna 104 implemented by feeding in the edge area of the main board in combination with matching tuning of the antenna can meet the frequency band coverage of the 4G MHB antenna. The first antenna 104 is distributed on the side edge of the mobile phone, most of the antenna structure is in the 180-degree area of the battery compartment, but the battery compartment structure is not influenced, the design of the antenna avoids the layout of the keys and is compatible with the requirement of beautifying the appearance of the keys, and the design space of the mobile phone antenna is effectively excavated. And a 4G/5G frequency band coexisting antenna system scheme is realized through the complementary combination with the second antenna 142.

In the application, the first antenna 104 and the second antenna 142 are distributed on the frame of the side edge of the whole machine, and the first broken seam 108 and the second broken seam 146 are far away from the top and the bottom of the mobile phone, so that the mobile phone is not easy to be held by hands in a vertical holding state and a horizontal holding state, and the antenna performance of the user during hand-held communication or data interaction and game playing can be effectively ensured.

As shown in fig. 2, in the present application, the radiation structure of the first antenna 104 is a structure between the first ground portion 106 and the second ground portion 112. A section of the frame 100 between the first ground portion 106 and the first slit 108 is used as a parasitic structure of the first antenna 104, i.e. a first parasitic structure, and the length thereof is 14.3 mm. The first feed 110 is disposed proximate to the top of the first button 102. A section of the frame 100 between the first broken joint 108 and the second grounding part 112 is a main structure of the first antenna 104, wherein the length from the first broken joint 108 to the first feeding part 110 is about 14 mm. The length from the first power feeding portion 110 to the second ground portion 112 is about 9 mm. The feeding at the first feeding part 110 combines the matching network and the switch switching network 116, two 1/4 wavelength mode currents from the first broken joint 108 to the second grounding part 112 and from the first broken joint 108 to the first feeding part 110 can be excited to cover the MHB frequency band, meanwhile, the parasitic resonance is always in the B41, the switch switching influence is small, and the CA requirements of B3_41 and B39_41 can be met. Fig. 3 shows the S11 parameter for the first antenna 104, and fig. 4 shows a system efficiency map for the first antenna 104.

As shown in fig. 2, in the present application, the radiation structure of the second antenna 142 is a structure between the third ground portion 144 and the fourth ground portion 150. The second broken seam 146 to the third ground 144 are parasitic structures of the second antenna 142, i.e., second parasitic structures, and the length thereof is about 4.7 mm. The second feeding portion 148 is provided between the fourth ground portion 150 and the second slit 146. A section of the frame 100 between the fourth grounding portion 150 and the second seam 146 is a main structure of the second antenna 142, wherein the length between the fourth grounding portion 150 and the second seam 146 is about 13 mm. The length from the second feeding portion 148 to the second slit 146 is about 6.7 mm. At the position of the second feeding part 148, feeding is combined with a matching network, and the fourth grounding part 150 to the second broken joint 146, the second feeding part 148 to the second broken joint 146 and the second broken joint 146 to the third grounding part 144 can be excited to be covered with three 1/4 wavelength mode currents in N41/78/79 three frequency bands of sub 6G. Fig. 5 illustrates the S11 parameter and system efficiency of the second antenna 142.

In this application, the distance between the second ground portion 112 and the fourth ground portion 150 is used as the physical isolation space between the first antenna 104 and the second antenna 142, when the distance between the second ground portion 112 and the fourth ground portion 150 is greater than 5mm, the isolation between the two antennas can be smaller than-12 dB, and when the distance between the second ground portion 112 and the fourth ground portion 150 is greater than 12mm, the isolation between the two antennas is smaller than-16 dB. In addition, the structure of the distance between the second grounding portion 112 and the fourth grounding portion 150 is also a key implementation structure for the antenna scheme to be compatible with the appearance of the key, and the distance between the two broken seams and the key can be adjusted by adjusting the size of the distance between the second grounding portion 112 and the fourth grounding portion 150, so that the layout of the key can be compatible, and the appearance of the whole machine can be beautified. Fig. 6 shows the isolation of the first antenna 104 and the second antenna 142 at different lengths of the distance of the second ground portion 112 from the fourth ground portion 150.

The beneficial effects of the above embodiment of this application:

the application provides a design scheme of a broken seam on two sides of a side key of a mobile phone. Under the condition of not influencing battery capacity and key appearance, two high-performance antennas are designed in an area where the antenna is not easy to design originally to cover a 4G MHB frequency band and a 5G sub-6G frequency band, and the problem of short design space of a 5G mobile phone antenna is effectively solved.

Other configurations, such as batteries, motherboards, etc., and operations of electronic devices according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, comprising:

a frame;

the first broken joint and the second broken joint are arranged on the frame;

2. The electronic device of claim 1, further comprising:

and the second key is arranged between the first key and the second broken seam, and the first key and the second key are arranged at intervals.

3. The electronic device of claim 2,

the distance from the first broken seam to the edge of the frame is greater than the distance from the first broken seam to the first key; and/or

And the distance from the second broken seam to the edge of the frame is greater than the distance from the second broken seam to the second key.

4. The electronic device of claim 2 or 3, further comprising:

the battery compartment area and the mainboard area are arranged in an area surrounded by the frame;

the first broken seam is positioned on the frame and is opposite to the battery compartment area;

the second broken seam is located at the position of the frame and opposite to the main board area.

5. The electronic device of claim 4,

the antenna comprises a first antenna working at the first frequency band and a second antenna working at the second frequency band;

the first antenna includes:

the first feed part is arranged at a position corresponding to the first key, and the first feed part is positioned in the main board area;

the first grounding part and the second grounding part are arranged on the frame, the first grounding part is positioned on one side of the first broken seam, which is far away from the first key, and the second grounding part is positioned on one side of the first feeding part, which is far away from the first grounding part;

the first main structure is constructed on the frame from the second grounding part to a part between the first broken seam, one part of the first main structure is arranged opposite to the battery compartment area, and the other part of the first main structure is arranged opposite to the main board area;

the first parasitic structure is constructed on the frame from the first grounding part to the part between the first broken seam, and the first parasitic structure is arranged opposite to the battery compartment area.

6. The electronic device of claim 5, wherein the first antenna further comprises:

a first matching network;

a switch switching network connected to the first matching network;

the first matching network and the switch switching network are arranged between the first feeding part and the frame.

7. The electronic device of claim 5, wherein the second antenna comprises:

the second feeding part is arranged at a position corresponding to the second key, and the second feeding part is positioned in the main board area;

the third grounding part and the fourth grounding part are arranged on the frame, the third grounding part is positioned on one side of the second broken seam, which is far away from the second key, the fourth grounding part is positioned on one side of the second feed part, which is far away from the third grounding part, and the distance between the fourth grounding part and the second feed part is smaller than the distance between the second grounding part and the second feed part;

the second main structure is constructed on the frame from the fourth grounding part to the part between the second broken seam, and the second main structure is arranged opposite to the mainboard area;

and the second parasitic structure is constructed on the frame from the third grounding part to the part between the second broken joint, and the second parasitic structure is arranged opposite to the mainboard area.

8. The electronic device of claim 7, wherein the second antenna further comprises:

and the second matching network is arranged between the second feeding part and the frame.

9. The electronic device of any of claims 1-3,

one of the first frequency band and the second frequency band is a 4G frequency band, and the other is a 5G frequency band.

10. The electronic device of any of claims 1-3,

the electronic device includes at least one of: mobile terminals, tablet computers, notebook computers, televisions, digital cameras, electronic book readers, electronic game machines, personal digital assistants.