CN113675587A

CN113675587A - Mobile terminal

Info

Publication number: CN113675587A
Application number: CN202010411994.1A
Authority: CN
Inventors: 郭湘荣; 马晓娜; 陈仁庆
Original assignee: Hisense Mobile Communications Technology Co Ltd
Current assignee: Hisense Mobile Communications Technology Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-11-19
Anticipated expiration: 2040-05-15
Also published as: CN113675587B

Abstract

The application discloses a mobile terminal, and relates to the technical field of communication. Because the antenna in the mobile terminal further comprises at least a second radiation branch, and the distance between the second radiation branch and the first radiation branch is smaller than the distance threshold, a coupling capacitor can be formed between the first radiation branch and the second radiation branch of the antenna, so that it can be ensured that energy on the first radiation branch can be coupled to the second radiation branch and finally to the radiation ground of the antenna through the coupling capacitor when the antenna is in operation. That is, even if the electronic device is disposed in a clearance area of the antenna, a current path of the antenna can be extended, and then radiation performance of the antenna is ensured.

Description

Mobile terminal

Technical Field

The present application relates to the field of communications technologies, and in particular, to a mobile terminal.

Background

The mobile terminal may include an antenna and electronics (e.g., cameras, earpieces, and indicator lights), where the antenna may include a radiating branch that may be used to transceive signals.

As the screen ratio of the mobile terminal increases, the electronic device may be disposed in the original clearance area of the antenna, and in order to ensure that the antenna has sufficient clearance area, the radiation branch of the antenna may be disposed short, which may cause the current path of the antenna to be too short to operate properly.

Disclosure of Invention

The application provides a mobile terminal, which can solve the problem that the current path of an antenna in the related art is too short and cannot work normally. The technical scheme is as follows:

in one aspect, a mobile terminal is provided, and the mobile terminal includes: the antenna comprises an antenna, a first electronic device, a display screen, a middle frame, a printed circuit board and a shell, wherein the printed circuit board is positioned on one side of the middle frame, which is far away from the display screen, and the shell is positioned on one side of the printed circuit board, which is far away from the middle frame;

the antenna is positioned on the inner side of the shell and comprises a first radiation branch and a second radiation branch which are arranged at intervals;

the first radiating branch is connected with a feed point, the distance between the first radiating branch and the second radiating branch is smaller than a distance threshold value, and a coupling capacitor is formed between the first radiating branch and the second radiating branch;

the second radiation branch is provided with a first through hole, and the first electronic device is arranged in the first through hole.

Optionally, a second through hole is formed in the display screen, and a part of the first electronic device is located in the first through hole, and another part of the first electronic device is located in the second through hole;

the first through hole and the second through hole are coaxial, and the first through hole and the second through hole are the same in shape.

In another aspect, a mobile terminal is provided, which includes: the antenna comprises an antenna, a first electronic device, a second electronic device, a display screen, a middle frame, a printed circuit board and a shell, wherein the printed circuit board is positioned on one side of the middle frame, which is far away from the display screen, and the shell is positioned on one side of the printed circuit board, which is far away from the middle frame;

the antenna is positioned on the inner side of the shell and comprises a first radiation branch, a second radiation branch and a third radiation branch, wherein the second radiation branch and the third radiation branch are oppositely arranged on two sides of the first radiation branch and are respectively arranged at intervals with the first radiation branch;

the first radiation branch is connected with a feed point, the distance between one end of the first radiation branch and the second radiation branch is smaller than a distance threshold value, the distance between the other end of the first radiation branch and the third radiation branch is smaller than the distance threshold value, and coupling capacitors are respectively formed between the first radiation branch and the second radiation branch and between the first radiation branch and the third radiation branch;

the second radiation branch is provided with a first through hole, and the first electronic device is arranged in the first through hole;

and a third through hole is formed in the third radiation branch, and the second electronic device is arranged in the third through hole.

Optionally, a second through hole and a fourth through hole are arranged on the display screen;

a portion of the first electronic device is located within the first via and another portion is located within the second via;

one part of the second electronic device is positioned in the second through hole, and the other part of the second electronic device is positioned in the fourth through hole;

the first through hole and the second through hole are coaxial, and the shapes of the first through hole and the second through hole are the same; the third through hole and the fourth through hole are coaxial, and the third through hole and the fourth through hole are the same in shape.

Optionally, the mobile terminal further includes: a first tuner;

the first tuner is connected with a side wall of the third through hole, and the first tuner is used for adjusting a current path of the antenna.

Optionally, the mobile terminal further includes: a second tuner;

the second tuner is connected to a sidewall of the first via, and the second tuner is used to adjust a current path of the antenna.

In still another aspect, a mobile terminal is provided, which includes: the antenna comprises an antenna, a first electronic device, a display screen, a middle frame, a printed circuit board and a shell, wherein the printed circuit board is positioned on one side of the middle frame, which is far away from the display screen, and the shell is positioned on one side of the printed circuit board, which is far away from the middle frame;

the first radiating branch is connected with a feed point, the distance between one end of the first radiating branch and the second radiating branch is smaller than a distance threshold value, and a coupling capacitor is formed between the first radiating branch and the second radiating branch;

an opening is arranged on the second radiation branch, and the first electronic device is arranged in the opening.

Optionally, the other end of the second radiation branch is connected to a ground terminal of the printed circuit board;

and/or the presence of a gas in the gas,

the other end of the second radiation branch is connected with the grounding end of the middle frame.

Optionally, the first radiation branch and the second radiation branch are arranged along a width direction of the mobile terminal;

the distance between the first radiation branch and the first side edge of the mobile terminal is smaller than the distance between the first radiation branch and the second side edge of the mobile terminal;

the second radiation branch is located on one side of the first radiation branch close to the first side edge, or the second radiation branch is located on one side of the first radiation branch close to the second side edge;

the first side edge and the second side edge are two opposite side edges of the mobile terminal, and the two side edges extend along the length direction of the mobile terminal.

Optionally, the second radiating branch is attached to the middle frame.

The beneficial effect that technical scheme that this application provided brought includes at least:

the application provides a mobile terminal, because the antenna in the mobile terminal at least further comprises a second radiation branch, and the distance between the second radiation branch and the first radiation branch is smaller than the distance threshold, a coupling capacitor can be formed between the first radiation branch and the second radiation branch of the antenna, so that it can be ensured that the energy on the first radiation branch can be coupled to the second radiation branch through the coupling capacitor and finally coupled to the radiation ground of the antenna when the antenna is in operation. That is, even if the electronic device is disposed in a clearance area of the antenna, a current path of the antenna can be extended, and then radiation performance of the antenna is ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a mobile terminal with a low screen ratio in the related art;

fig. 2 is a schematic structural diagram of a mobile terminal with a draft screen ratio in the related art;

fig. 3 is an exploded view of a mobile terminal according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an antenna provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another mobile terminal provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of another mobile terminal provided in an embodiment of the present application;

fig. 8 is a schematic diagram illustrating a comparison of return loss curves of an antenna in the related art and an antenna provided by an embodiment of the present application;

fig. 9 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another mobile terminal provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of another mobile terminal provided in an embodiment of the present application;

fig. 13 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a low screen ratio mobile terminal in the related art. As can be seen from fig. 1, the mobile terminal may include: an antenna 101, a Printed Circuit Board (PCB) 102, a radio frequency signal source (also referred to as a driver) 103 and electronics 104 located on the PCB 102, and an bezel 105. The antenna 101 may be connected to the rf signal source 103, and the ground terminal of the PCB 102 may be connected to the ground terminal of the middle frame 105. The antenna 101 may include a high frequency radiation portion 101a, and a medium and low frequency radiation portion 101 b.

As shown in fig. 1, since the electronic device 105 is disposed on the PCB 103 and not in the clearance area of the antenna, the clearance area is not invaded, so that the screen occupation ratio of the mobile terminal is low, and the radiation branch 101a is long, and the radiation performance of the antenna 101 is good. The clearance area is an area other than the area occupied by the antenna 101 in the area a shown in fig. 1.

Fig. 2 is a schematic structural diagram of a mobile terminal with a high screen ratio in the related art. Referring to fig. 2, the mobile terminal may include: an antenna 201, a PCB 202, a radio frequency signal source 203 and electronics 204 located on the PCB 202, and a bezel 205. The antenna 201 is connected to the rf signal source 203, and the ground terminal of the PCB 202 is connected to the ground terminal of the middle frame 205.

As shown in fig. 2, the screen occupation of the mobile terminal is high because the electronics 204 encroach on the headroom area of the antenna 201. In order to reserve a sufficient clearance area for the antenna 201, the high-frequency radiation portion 101a shown in fig. 1 needs to be cut short. As can be seen from comparison with fig. 1, the antenna 201 now includes a shorter high-frequency radiation portion 201a, resulting in poorer radiation performance of the antenna 201.

Example one

The embodiment of the application provides a mobile terminal, which can be a smart phone, a tablet computer, a notebook computer or the like, for example, the mobile terminal can be a mobile phone. Referring to fig. 3 and 4, the mobile terminal may include: antenna 01 (only the first radiating branch 011 of antenna 01 is shown in fig. 3 and 4), first electronics 02, display 03, bezel 04, PCB05 and housing 06.

As can be seen from fig. 3, the middle frame 04 may be located on the non-display side of the display screen 03, the PCB05 may be located on the side of the middle frame 04 away from the display screen 03, and the chassis 06 may be located on the side of the PCB05 away from the middle frame 04. The antenna 01 may be located inside the housing 06.

Fig. 5 is a schematic structural diagram of an antenna according to an embodiment of the present application. Referring to fig. 4 and 5, the antenna 01 may include a first radiation branch 01 and a second radiation branch 02 that are spaced apart. I.e. there is a gap between second radiating branch 012 and first radiating branch 011, and the spacing d1 between one end of first radiating branch 011 and one end of second radiating branch 012 is less than the spacing threshold. Alternatively, the spacing threshold may be less than or equal to 2 millimeters (mm).

As can be seen from fig. 5, the length direction of the first radiating branch 011 can be arranged parallel to the first direction X, the length direction of the second radiating branch 012 can be parallel to the second direction Y, the first direction X can intersect with the second direction Y, and the first direction X can be perpendicular to the second direction Y.

Since the distance d1 between the ends of the first and second radiating

branches

011 and 012 is smaller than the distance threshold, a coupling capacitor can be formed between the ends of the first and second radiating

branches

011 and 012, and the coupling strength between the ends of the first and second radiating

branches

011 and 012 is greater than the coupling strength between the first radiating branch 011 and radiating ground of antenna 01. This ensures that, when the antenna 01 is in operation, the energy in the first radiating branch 011 can pass through the coupling capacitor and the second radiating branch 012 in turn, and is finally coupled to the radiating ground of the antenna 01. The radiation ground of the antenna 01 may be a ground terminal of a PCB of the mobile terminal.

Based on the above analysis, it can be known that the scheme provided in the embodiment of the present application is equivalent to extending the radiation branch of the antenna 01, so that the path along which energy flows on the antenna 01 is extended, and then the current path of the antenna 01 is extended, so that the length of the current path of the antenna can be greater than the product of the operating wavelength of the antenna 01 and the specified coefficient, and the radiation performance of the antenna is ensured.

Wherein the specified coefficient may be one half or one quarter. If the antenna 01 is a monopole antenna, the specified coefficient is one quarter. If the antenna 01 is a dipole antenna, the specified coefficient is one-half.

In the present embodiment, the first radiating branch 011 can be connected to a feeding point. As can be seen from fig. 5, the second radiation branch 012 may be provided with a first through hole 012a, and the first electronic device 02 may be arranged in the first through hole 012 a. Wherein the shape of the first through-hole 012a matches the shape of the first electronic device 02.

Alternatively, the first electronic device 02 may be a front camera, an indicator light, or an earpiece. For example, referring to fig. 3, the first electronic device 02 is a front camera of a mobile terminal.

Because the one end of the second radiation branch 012 is provided with the first through hole 012a, the first electronic device 02 can be arranged in the first through hole 012a, so the integration of the device of the mobile terminal is effectively improved, and then the screen occupation ratio of the mobile terminal is improved.

In the present embodiment, as shown in fig. 3, the first radiating branch 011 of the antenna 01 may be located inside the housing 06. The second radiating branch 012 of the antenna 01 may be attached to the middle frame 04.

Optionally, the mobile terminal may further include a Flexible Printed Circuit (FPC), and the first radiation branch 011 of the antenna 01 may be disposed inside the housing 06 through the flexible circuit board, that is, the first radiation branch 011 is disposed on the FPC, and the FPC provided with the first radiation branch 011 is disposed inside the housing 06. Referring to fig. 3, the middle frame 04 may include a metal frame 041, and a metal plate 042 disposed inside the metal frame 041 and connected to the metal frame 041. The second radiating branch 012 (not shown in fig. 5) can be in contact with the inner side of the metal frame 041 and attached to the inner surface of the metal frame 041.

Referring to fig. 5, the first radiating branch 011 may include a high frequency radiating portion 011a and a low frequency radiating portion 011 b. Alternatively, the first radiating branch 011 and the second radiating branch 012 may both be made of a metallic material, for example, an alloy.

In the embodiment of the present application, referring to fig. 3, the display screen 03 may be provided with a second through hole 03a, and a portion of the first electronic device 02 may be located in the first through hole 012a of the second radiation branch 012, and another portion may be located in the second through hole 03a of the display screen 03.

The display screen 03 may also be referred to as a hole-digging screen. The first through hole 012a and the second through hole 03a may be coaxial, and the first through hole 012a and the second through hole 03a may have the same shape and may both match the shape of the first electronic device 02.

Because a part of the first electronic device 02 may be located in the first through hole 012a of the second radiation branch 012, the second radiation branch 012 may fix the first electronic device 02 to protect the first electronic device 02 and the display screen 03, and avoid mutual abrasion between the first electronic device 02 and the display screen 03, thereby effectively improving the service life of the mobile terminal.

In the present embodiment, the first radiating branch 011 and the second radiating branch 012 can be arranged along the width direction of the mobile terminal, and the length direction X of the first radiating branch 011 can be the width direction of the mobile terminal, and the length direction Y of the second radiating branch 012 can be the length direction of the mobile terminal.

In the embodiment of the present application, the side of the middle frame 04 is the side of the mobile terminal. Referring to fig. 6, the first side 04a of the middle frame 04 may be a first side of the mobile terminal, and the second side 04b of the middle frame 04 may be a second side of the mobile terminal.

The first side 04a and the second side 04b are two opposite sides of the mobile terminal, and extend along the length direction of the mobile terminal. For example, the first side 04a may be a left side of the mobile terminal, and the second side 04b may be a right side of the mobile terminal. Alternatively, the first side 04a may be a right side of the mobile terminal, and the second side 04b may be a left side of the mobile terminal.

In the embodiment of the present application, as shown in fig. 6, a distance d2 between the first radiating branch 011 and the first side 04a of the mobile terminal may be smaller than a distance d3 between the first radiating branch 011 and the second side 04b of the mobile terminal. Second radiation branch 012 may be located on a side of first radiation branch 011 close to first side edge 04a, or second radiation branch 012 is located on a side of first radiation branch 011 close to second side edge 04 b.

For example, assuming that first side 04a is the left side of the mobile terminal, second side 04b is the right side of the mobile terminal, and second radiation branch 012 is located at the side of first radiation branch 011 close to first side 04a, as shown in fig. 4, second radiation branch 012 can be located at the left side of first radiation branch 011.

Assuming that second radiation branch 012 is located on a side of first radiation branch 011 close to second side edge 04b, second radiation branch 012 may be located on the right side of first radiation branch 011 as shown in fig. 6.

Referring to fig. 6, the mobile terminal may further include a second tuner 07. The second tuner 07 may be connected to a sidewall of the first through-hole 012a, and the second tuner 07 may be used to adjust a current path of the antenna 01.

Alternatively, the second tuner 07 may be disposed on the PCB05 and may be connected to a sidewall of the first through hole 012a by a conductive elastic piece.

Referring to fig. 7, the direction indicated by the arrow in fig. 7 is the direction of energy flow in the antenna 01. As can be seen from fig. 7, the energy in first radiating branch 011 can be coupled to second radiating branch 012 through a coupling capacitor along the direction indicated by the arrow.

At this point, the second tuner 07 may shield the energy, so that the energy continues to flow in the direction indicated by the arrow to the other end of the second radiating branch 012. Alternatively, the second tuner 07 may be such that the energy flows to the other end of the second radiating branch 012 only through the second tuner 07. The second tuner 07 may shield the energy or cause the energy to flow only through the second tuner 07 to the other end of the second radiating branch 012 to enable adjustment of the flow path of the energy and thus the current path of the antenna 01.

Optionally, the second tuner 07 may include at least one of an inductor, a capacitor, and a resistor. The resistor may be a 0 ohm resistor, that is, the resistance of the resistor is very small. For example, referring to fig. 7, the second tuner 07 may include an inductor.

Due to the fact that the second tuner 07 is arranged, the second tuner 07 can adjust a current path of the antenna 01, and therefore the antenna 01 can work in different frequency bands, and flexibility of antenna work is improved.

In the present embodiment, the other end of the second radiating branch 012 may or may not be grounded. If the other end of the second radiation branch 012 is not grounded, the antenna 01 may be an inverted F antenna. If the other end of the second radiating branch 012 is grounded, the antenna 01 may be a loop antenna.

Alternatively, the middle frame 04 and the PCB05 may have ground terminals, and the ground terminal of the middle frame 04 and the ground terminal of the PCB05 may be connected by a conductor. Optionally, the conductor may be a conductive elastic sheet or a conductive foam.

Correspondingly, the other end of the second radiating branch 012 may be connected to a ground terminal of the PCB 05. And/or the other end of the second radiating branch 012 may be connected to the ground terminal of the middle frame 04, so as to realize a connection to ground.

As an example, referring to fig. 3, 4, 6 and 7, the other end of the second radiation branch 012 may be connected to the middle frame 04, so as to be connected to the ground terminal of the middle frame 04. Alternatively, referring to fig. 5, the other end of the second radiation branch 012 may be connected to the PCB05, and thus may be connected to a ground terminal of the PCB 05.

In the embodiment of the present application, referring to fig. 4, and fig. 6 and 7, the mobile terminal may further include: and the radio frequency signal source 08 is arranged on the PCB05, and can be used for providing radio frequency signals for the antenna 01. The anode of the rf signal source 08 may be connected to the feeding point, and the cathode of the rf signal source 08 is the ground of the PCB 05. That is, the rf signal source 08 may be connected to the antenna 01 through a feeding point, and may feed the rf signal into the antenna 01 through the feeding point.

The mobile terminal may further include: a third tuner 09 disposed on the PCB05, see fig. 6, the third tuner 09 being connectable to the first radiating branch 011 through a tuning port 011a on the first radiating branch 011, the third tuner 09 also being configured to adjust the current path of the antenna 01.

It should be noted that the two tuners included in the mobile terminal (i.e., the second tuner 07 connected to the sidewall of the first through-hole 012 and the third tuner 09 disposed on the PCB 05) may be operated separately or cooperatively. When the two tuners are matched to work, the adjustment accuracy of the current path of the antenna 01 can be improved, so that the radiation performance of the antenna 01 is effectively improved.

Fig. 8 is a schematic diagram illustrating a comparison of return loss curves of an antenna in the related art and an antenna provided in an embodiment of the present application. In fig. 8, the abscissa indicates the operating frequency of the antenna in gigahertz (Hz), and the ordinate indicates the return loss of the antenna in decibels (db), which is a negative value. The smaller the return loss (i.e., the larger the absolute value of the return loss), the stronger the electromagnetic wave radiated by the antenna into space, i.e., the stronger the signal radiated by the antenna.

In fig. 8, a first curve is a return loss curve of an antenna in the related art, and a second curve is a return loss curve of an antenna provided in an embodiment of the present application. In the first curve, the abscissa of the coordinate point identified as 1 is 0.824GHz, the ordinate is-2.771 db, the abscissa of the coordinate point identified as 2 is 0.880GHz, the ordinate is-5.661 db, the abscissa of the coordinate point identified as 3 is 0.96GHz, the ordinate is-3.667 db, the abscissa of the coordinate point identified as 4 is 1.17GHz, the ordinate is-11.144 db, the abscissa of the coordinate point identified as 5 is 2.17GHz, the ordinate is-3.17 db, the abscissa of the coordinate point identified as 6 is 2.30GHz, the ordinate is-3.66 db, the abscissa of the coordinate point identified as 7 is 2.40GHz, the ordinate is-4.33 db, the abscissa of the coordinate point identified as 8 is 2.496GHz, the ordinate is-4.23 GHz, the abscissa of the coordinate point identified as 9 is 2.69GHz, and the ordinate is-4.79 db.

As can be seen from fig. 8, when the operating frequency of the antenna in the related art is 2.30GHz to 2.69GHz, the return loss is greater than-5 db, and the antenna radiates a weaker signal and has lower radiation performance.

As can be seen from comparison between the second curve and the first curve, the return loss of the antenna provided in the embodiment of the present application is smaller than-5 db when the operating frequency is 2.30GHz to 2.69GHz, and compared with the antenna in the related art, the return loss of the antenna provided in the embodiment of the present application is reduced, and the radiation performance is effectively improved, that is, the signal radiated by the antenna is stronger.

In summary, the present application provides a mobile terminal, where an antenna in the mobile terminal further includes a second radiation branch, and a distance between the second radiation branch and the first radiation branch is smaller than a distance threshold, so that a coupling capacitor may be formed between the first radiation branch and the second radiation branch of the antenna, and it may be ensured that, when the antenna is in operation, energy on the first radiation branch may be coupled to the second radiation branch through the coupling capacitor, and finally coupled to a radiation ground of the antenna. That is, even if the electronic devices included in the mobile terminal are disposed in the clearance area of the antenna, the current path of the antenna can be extended, and thus the radiation performance of the antenna is ensured.

In addition, the first electronic device included in the mobile terminal can be arranged in the first through hole on the second radiation branch, so that on one hand, the integration level of the devices of the mobile terminal is effectively improved, and then the screen occupation ratio of the mobile terminal is improved. On the other hand, the second radiation branch can play a fixed role in the first electronic device so as to avoid mutual abrasion between the first electronic device and the display screen, and therefore the service life of the mobile terminal is effectively prolonged.

Example two

The embodiment of the application provides a mobile terminal, which can be a smart phone, a tablet computer, a notebook computer or the like, for example, the mobile terminal can be a mobile phone. Referring to fig. 9, the mobile terminal may include: the antenna 01, the first electronic device 02, the display 03, the middle frame 04, the printed circuit board 05 and the casing.

The middle frame 04 may be located on the non-display side of the display screen 03, the PCB05 may be located on a side of the middle frame away from the display screen 03, and the housing 06 may be located on a side of the PCB05 away from the middle frame. The antenna 01 may be located inside the housing 06.

Referring to fig. 10, the antenna 01 may include a first radiation branch 01 and a second radiation branch 02 that are spaced apart. That is, there is a gap between the second radiation branch 012 and the first radiation branch 011, and the distance between one end of the first radiation branch 011 and one end of the second radiation branch 012 is smaller than the distance threshold, and a coupling capacitor is formed between the first radiation branch 011 and the second radiation branch 012.

For the setting direction of the first radiating branch 011 and the setting direction of the second radiating branch 012 of the antenna 01, and the path flow direction of the energy of the antenna 01, reference may be made to the above-mentioned first embodiment, which is not described herein again in this embodiment of the present application.

In the present embodiment, the first radiating branch 011 can be connected to a feeding point. As can be seen in fig. 10, the second radiation branch 012 may be provided with an opening 012 b. The first electronic device 02 (not shown in fig. 10) may be disposed in the opening 012 b. Wherein the opening 012b matches the shape of the first electronic device 02.

It should be noted that if the first electronic device 02 is arranged at a top corner of a mobile terminal, the opening 012b on the second radiation branch 012 can be directed towards the first radiation branch 011. Thereby, the first electronic device 02 can be effectively protected when the mobile terminal is dropped.

If the first electronic device 02 is arranged at the middle position of the upper end of the mobile terminal, the opening 012b can be towards the first radiating branch 011 and can also be away from the first radiating branch 011.

Alternatively, the first electronic device 02 may be a front camera, an indicator light, or an earpiece. For example, referring to fig. 9, the first electronic device 02 is a front camera of a mobile terminal.

Since one end of the second radiation branch 012 is provided with the opening 012b, the first electronic device 02 can be disposed in the opening 012b, thereby effectively improving the integration level of the device of the mobile terminal, and then improving the screen occupation ratio of the mobile terminal.

In the present embodiment, as shown in fig. 9, the first radiating branch 011 of the antenna 01 may be located inside the housing 06. The second radiating branch 012 of the antenna 01 may be attached to the middle frame 04. The arrangement of the first radiating branch 011 and the attachment of the second radiating branch 012 can refer to the implementation in the first embodiment, which is not described herein again in this embodiment.

The display 03 may be provided with a second through hole, and a part of the first electronic device 02 may be located in the opening 012b, and another part may be located in the second through hole 03 a. The shape of the second through hole 03a is the same and can be matched to the shape of the first electronic component 02.

Since a part of the first electronic device 02 may be located in the opening 012b on the second radiation branch 012, the second radiation branch 012 may fix the first electronic device 02 to protect the first electronic device 02 and the display 03, and avoid mutual abrasion between the first electronic device 02 and the display 03, thereby effectively prolonging the service life of the mobile terminal.

In the present embodiment, the first radiating branch 011 and the second radiating branch 012 may be arranged along the width direction of the mobile terminal. The distance between the first radiating branch 011 and the first side of the mobile terminal may be smaller than the distance between the first radiating branch 011 and the second side of the mobile terminal, and the second radiating branch 012 may be located at a side of the first radiating branch 011 close to the first side. Alternatively, second radiating branch 012 may be located on a side of first radiating branch 011 near the second side edge.

Optionally, referring to fig. 11, the mobile terminal may further include: a second tuner 07. The second tuner 07 may be connected to a side wall of the port 012b, and the second tuner 07 may be used to adjust a current path of the antenna 01. For components included in the second tuner 07 and a process of adjusting a current path of the antenna, reference may be made to the first embodiment, which is not described herein again in this embodiment of the present application.

Alternatively, the other end of the second radiation branch 012 may be connected to the ground terminal of the PCB 05. And/or the other end of the second radiating branch 012 may be connected to the ground terminal of the middle frame 04, so as to realize a connection to ground.

In this embodiment, referring to fig. 10, the mobile terminal may further include: a radio frequency signal source 08 and a third tuner 09 disposed on the PCB 05. For the location, the role, and the connection relationship with other components in the mobile terminal of the radio frequency signal source 08 and the third tuner 09, reference may be made to the first embodiment described above, and details of the embodiments of the present application are not repeated herein.

In summary, the present application provides a mobile terminal, where an antenna in the mobile terminal further includes a second radiation branch, and a distance between the second radiation branch and the first radiation branch is smaller than a distance threshold, so that a coupling capacitor may be formed between the first radiation branch and the second radiation branch of the antenna, and it may be ensured that, when the antenna is in operation, energy on the first radiation branch may be coupled to the second radiation branch through the coupling capacitor, and finally coupled to a radiation ground of the antenna. That is, even if the electronic device is disposed in a clearance area of the antenna, a current path of the antenna can be extended, and then radiation performance of the antenna is ensured.

Moreover, because the first electronic device included in the mobile terminal can be arranged in the opening on the second radiation branch, on one hand, the integration level of the devices of the mobile terminal is effectively improved, and then the screen occupation ratio of the mobile terminal is improved. On the other hand, the second radiation branch can play a fixed role in the first electronic device so as to avoid mutual abrasion between the first electronic device and the display screen, and therefore the service life of the mobile terminal is effectively prolonged.

EXAMPLE III

Fig. 12 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application. The mobile terminal may be a smart phone, a tablet computer, a notebook computer, or the like, for example, the mobile terminal may be a mobile phone.

Referring to fig. 12, the mobile terminal includes: the antenna comprises an antenna 01, a first electronic device, a second electronic device, a display screen, a middle frame 04, a PCB05 and a casing. The middle frame 04 may be located on the non-display side of the display screen, the PCB05 may be located on a side of the middle frame 03 away from the display screen, and the chassis may be located on a side of the PCB05 away from the middle frame 04. The antenna may be located inside the housing.

As can be seen from fig. 12, antenna 01 may include a first radiating branch 011, and a second radiating branch 012 and a third radiating branch 013 disposed on opposite sides of first radiating branch 011 and spaced apart from first radiating branch 011. That is, a gap exists between second radiating branch 012 and first radiating branch 011, and a gap also exists between third radiating branch 013 and first radiating branch 011. Also, the spacing d1 between one end of first radiating branch 011 and one end of second radiating branch 012, and the spacing d4 between the other end of first radiating branch 011 and one end of third radiating branch 013, may both be less than a spacing threshold.

As can be seen from fig. 12, the length direction of the first radiating branch 011 can be parallel to the first direction X, the length directions of the second radiating branch 012 and the third radiating branch 013 can be parallel to the second direction Y, the first direction X can intersect the second direction Y, for example, the first direction X can be perpendicular to the second direction Y.

Since the distance between one end of the first radiating branch 011 and one end of the second radiating branch 012 is smaller than the distance threshold, and the distance between the other end of the first radiating branch 011 and one end of the third radiating branch 013 is also smaller than the distance threshold, a coupling capacitor may be formed between the first radiating branch 011 and one end of the second radiating branch 012, and a coupling capacitor may also be formed between the first radiating branch 011 and one end of the third radiating branch 013. Also, the coupling strength between the ends of the first and second radiating

branches

011 and 012, and between the ends of the first and third radiating

branches

011 and 013, can be greater than the coupling strength between the first radiating branch 011 and the radiating ground of antenna 01.

Thus, when antenna 01 is operating, as shown in fig. 13, part of the energy in first radiating branch 011 can pass through the coupling capacitor and second radiating branch 012 in turn, and finally couple to the radiating ground of antenna 01. And, other energy on the first radiating branch 011 can sequentially pass through the partial branch of the first radiating branch 011, the coupling capacitor, the third radiating branch 013, and other branches of the first radiating branch 011, and finally couple to the radiating ground of the antenna 01.

Because the energy on the first radiating branch 011 can be coupled to the radiating ground of the antenna 01 through the coupling capacitor, the second radiating branch 012 and the third radiating branch 013, which is equivalent to extending the radiating branch of the antenna 01, the path of the energy flowing on the antenna 01 is extended, and then the current path of the antenna 01 is effectively extended, so that the length of the current path of the antenna can be greater than the product of the operating wavelength of the antenna 01 and the specified coefficient, thereby ensuring the radiation performance of the antenna.

In the present embodiment, the first radiating branch 011 can be connected to a feeding point. As can be seen from fig. 12, the second radiation branch 012 may be provided with a first through hole 012a, and the first electronic device may be disposed in the first through hole 012 a. The third radiation branch 013 may be provided with a third through hole 013a, and the second electronic device may be arranged in the third through hole 012 a.

Wherein the shape of the first via 01a matches the shape of the first electronic device. The shape of the third through hole 013a matches the shape of the second electronic device.

Optionally, the first electronic device and the second electronic device may be a front camera, an indicator light, or an earphone, and the first electronic device and the second electronic device are different. For example, the first electronic device may be a front camera and the second electronic device may be a headset.

Alternatively, the sidewalls of the first through hole 012a and the third through hole 013a may be discontinuous sidewalls. That is, the first through hole 012a may be an opening provided in the second radiation branch 012, and the third through hole 013a may be an opening provided in the third radiation branch 013.

Also, the opening provided in second radiating branch 012 and the opening provided in third radiating branch 013 can both face first radiating branch 011 or can face away from first radiating branch 011.

Since the first electronic device can be disposed in the first through hole 012a on the second radiation branch 012 of the antenna 01, and the second electronic device can be disposed in the third through hole 013a on the third radiation branch 013 of the antenna 01, the integration level of the devices of the mobile terminal is effectively improved, and then the screen occupation ratio of the mobile terminal is improved.

In the present embodiment, the first radiating branch 011 of the antenna 01 may be located inside the chassis. The second radiating branch 012 of the antenna 01 may be attached to the middle frame 04. The arrangement of the first radiating branch 011 and the attachment of the second radiating branch 012 can refer to the implementation of the first embodiment, which is not repeated herein.

Optionally, the display screen may be provided with a second through hole and a fourth through hole. A portion of the first electronic device may be located in the first through-hole 012a on the second radiation branch 012, and another portion may be located in the second through-hole on the display screen. A portion of the second electronics can be located in a third via 013a on the third radiation branch 013 and another portion can be located in a fourth via on the display screen.

The first through hole 012a and the second through hole are coaxial, and the first through hole 012a and the second through hole have the same shape and are both matched with the shape of the first electronic device. The third through hole 013a and the fourth through hole are coaxial, and the shapes of the third through hole 013a and the fourth through hole are the same and can be matched with the shape of the first electronic device.

Because a part of the first electronic device can be located in the first through hole 012a on the second radiation branch 012, a part of the second electronic device can be located in the first through hole 013a on the third radiation branch 013, therefore, the second radiation branch 012 can play a fixed role to the first electronic device, the third radiation branch 013 can play a fixed role to the second electronic device, so as to protect the first electronic device, the second electronic device and the display screen, avoid the mutual wear between the first electronic device and the display screen, and the mutual wear between the second electronic device and the display screen, thereby effectively improving the service life of the mobile terminal.

In the present embodiment, the first radiating branch 011 and the second radiating branch 012 are arranged along the width direction of the mobile terminal. The distance between the first radiating branch 011 and the first side of the mobile terminal is smaller than the distance between the first radiating branch 011 and the second side of the mobile terminal. Second radiating branch 012 may be located on a side of first radiating branch 011 near the first side edge, and correspondingly, third radiating branch may be located on a side of first radiating branch 011 near the second side edge.

Alternatively, second radiation branch 012 may be located on a side of first radiation branch 011 close to the second side edge, and correspondingly, third radiation branch 013 may be located on a side of first radiation branch 011 close to the first side edge.

Referring to fig. 13, the mobile terminal may further include a first tuner 10. The first tuner 10 may be connected to a sidewall of the third through hole 013a, and the first tuner 10 may be used to adjust a current path of the antenna 01. Alternatively, the first tuner 10 may be disposed on the PCB05 and may be connected to a sidewall of the third through hole 013a by a conductive dome.

Alternatively, as can also be seen from fig. 13, the antenna 01 may include a second tuner 07, the second tuner 07 may be connected to a sidewall of the first through-hole 012a, and the second tuner 07 may be used to adjust a current path of the antenna 01.

For the process of adjusting the current path of the antenna 01 by the first tuner 10 and the second tuner 07, reference may be made to the adjustment process of the second tuner in the first embodiment, and details of the embodiment of the present application are not repeated herein.

In the present embodiment, the other end of the second radiation branch 012 and the other end of the third radiation branch 013 may or may not be grounded. Optionally, the middle frame 04 and the PCB05 both have a ground terminal, and the ground terminal of the middle frame 04 and the ground terminal of the PCB05 may be connected by a conductor.

Accordingly, the other end of the second radiation branch 012 and the other end of the third radiation branch 013 can be connected to the ground terminal of the PCB 05. And/or, the other end of second radiating branch 012 and the other end of third radiating branch 013 may be connected to the ground terminal of middle frame 04, so as to implement the connection to the ground.

As an example, referring to fig. 12 and 13, the other end of the second radiation branch 012 can be connected to the middle frame 04, so as to be connected to the ground terminal of the middle frame 04. The other end of the third radiating branch 013 may be connected to the PCB05 and thus to the ground of the PCB 05.

In this embodiment of the application, referring to fig. 12, the mobile terminal may further include: a radio frequency signal source 08 and a third tuner 09 disposed on the PCB 05. For the location, the role, and the connection relationship with other components in the mobile terminal of the radio frequency signal source 08 and the third tuner 09, reference may be made to the first embodiment described above, and details of the embodiments of the present application are not repeated herein.

It should be noted that the three tuners included in the mobile terminal (i.e., the second tuner 07 connected to the sidewall of the first through hole 012, the first tuner 10 connected to the sidewall of the third through hole 013a, and the third tuner 09 provided on the PCB 07) may be operated individually or in cooperation with each other. When the three tuners are matched to work, the adjustment accuracy of the current path of the antenna 01 can be improved, so that the radiation performance of the antenna 01 is effectively improved.

In summary, the embodiment of the present application provides a mobile terminal, because the antenna in the mobile terminal further includes a second radiation branch and a third radiation branch that are oppositely disposed at two sides of the first radiation branch and are both disposed at an interval from the first radiation branch, and the distances between the second radiation branch and the first radiation branch and between the third radiation branch and the first radiation branch are both smaller than a distance threshold, a coupling capacitor may be formed between the first radiation branch and the second radiation branch of the antenna, and a coupling capacitor may also be formed between the first radiation branch and the third radiation branch, so that it can be ensured that, when the antenna is in operation, energy on the first radiation branch may be coupled to the second radiation branch and the third radiation branch through the coupling capacitor, and is finally coupled to a radiation ground of the antenna. That is, even if the electronic device is disposed in a clearance area of the antenna, a current path of the antenna can be extended, and then radiation performance of the antenna is ensured.

In addition, the first electronic device included in the mobile terminal can be arranged in the first through hole on the second radiation branch, and the second electronic device included in the mobile terminal can be arranged in the third through hole on the third radiation branch, so that on one hand, the integration level of the devices of the mobile terminal is effectively improved, and then, the screen occupation ratio of the mobile terminal is improved. On the other hand, the radiation branch can play a role in fixing the electronic device so as to avoid mutual abrasion between the electronic device and the display screen, and therefore the service life of the mobile terminal is effectively prolonged.

The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mobile terminal, characterized in that the mobile terminal comprises: the antenna comprises an antenna, a first electronic device, a display screen, a middle frame, a printed circuit board and a shell, wherein the printed circuit board is positioned on one side of the middle frame, which is far away from the display screen, and the shell is positioned on one side of the printed circuit board, which is far away from the middle frame;

2. The mobile terminal according to claim 1, wherein a second through hole is disposed on the display screen, and a part of the first electronic device is located in the first through hole and another part of the first electronic device is located in the second through hole;

3. A mobile terminal, characterized in that the mobile terminal comprises: the antenna comprises an antenna, a first electronic device, a second electronic device, a display screen, a middle frame, a printed circuit board and a shell, wherein the printed circuit board is positioned on one side of the middle frame, which is far away from the display screen, and the shell is positioned on one side of the printed circuit board, which is far away from the middle frame;

4. The mobile terminal according to claim 3, wherein the display screen is provided with a second through hole and a fourth through hole;

5. The mobile terminal of claim 3, wherein the mobile terminal further comprises: a first tuner;

6. The mobile terminal according to any of claims 1 to 5, wherein the mobile terminal further comprises: a second tuner;

7. A mobile terminal, characterized in that the mobile terminal comprises: the antenna comprises an antenna, a first electronic device, a display screen, a middle frame, a printed circuit board and a shell, wherein the printed circuit board is positioned on one side of the middle frame, which is far away from the display screen, and the shell is positioned on one side of the printed circuit board, which is far away from the middle frame;

8. The mobile terminal of any of claims 1 to 7,

the other end of the second radiation branch is connected with the grounding end of the printed circuit board;

and/or the presence of a gas in the gas,

9. The mobile terminal of any of claims 1 to 7, wherein the first radiating branch and the second radiating branch are arranged along a width direction of the mobile terminal;

10. The mobile terminal according to any of claims 1 to 7, wherein the second radiating branch is attached to the middle frame.