CN111370848B - Electronic equipment - Google Patents

Abstract

The application relates to an electronic device, which comprises a device main body with a first screen and an antenna, wherein the first screen is arranged on a first surface of the device main body; the at least part of second face and third face is the metal-back, and set up the cell body that is used for setting up the antenna that is linked together on the metal-back on second face and third face, promptly, this application carries out the overall arrangement setting of antenna based on the intercommunication cell body that carries out the fluting formation on the metal-back of equipment main part different face, avoided setting up the whole physical line body of antenna in the outside of electronic equipment display screen, thereby at least reduced the demand to clean space on the frame of electronic equipment display screen outside, can further provide support for electronic equipment's super narrow frame or comprehensive screen design. In addition, different surfaces of the device main body are communicated and grooved, so that the multi-surface radiation purpose can be achieved, the interference of the metal shell to the antenna field pattern is greatly reduced, and the overall radiation efficiency of the antenna is ensured.

Description

Electronic equipment

Technical Field

The application belongs to the technical field of antenna design and layout, and particularly relates to an electronic device.

Background

In the traditional antenna design, a clear space of at least 4mm to 5mm needs to be additionally reserved outside a display screen of electronic equipment such as a mobile phone and a notebook computer to place an antenna, for example, a WIFI antenna is placed, however, the requirement is contradictory to the requirement of an ultra-narrow frame or the requirement of a full screen of the existing electronic equipment, and the ultra-narrow frame or the full screen of the electronic equipment is difficult to meet by the design mode.

Disclosure of Invention

In view of this, the application provides an electronic equipment, through carrying out the intercommunication fluting at the different faces of equipment main part to the intercommunication cell body based on the fluting formation carries out the overall arrangement setting of antenna, reduces the reserved space occupation volume to electronic equipment display screen outside frame, satisfies electronic equipment's super narrow frame demand or comprehensive screen requirement, guarantees metal casing formula electronic equipment's whole radiation performance simultaneously.

The technical scheme disclosed by the application is as follows:

an electronic device, comprising:

an apparatus main body; the device body comprises a first screen, the first screen is arranged on a first surface of the device body, the device body further comprises a second surface and a third surface which are different from the first surface, and the second surface and the third surface share at least one edge;

an antenna for transmitting and/or receiving a wireless signal;

the antenna comprises an equipment main body, a first face and a second face, wherein at least part of the second face and the third face of the equipment main body are metal shells, groove bodies communicated with each other are arranged on the metal shells of the second face and the third face of the equipment main body, and the groove bodies are used for setting the antenna.

In the electronic device, preferably, the device main body includes a first main body and a second main body, and the first main body and the second main body can move relatively and can be in a mutually overlapped state;

the first body and the second body have a first face, a second face, and a third face, respectively;

wherein the first and second faces on the first body are opposing faces on the first body; the third surface of the first main body is a surface formed by the side frame of the first main body and is arranged between the first surface and the second surface of the first main body; the first and second faces on the second body are opposite faces on the second body; the third surface of the second main body is a surface formed by the side frame of the second main body and is arranged between the first surface and the second surface of the second main body;

in the mutually overlapped state, the first surface of the first body and the first surface of the second body are respectively positioned at the overlapped side.

In the electronic device, preferably, the number of the screens of the electronic device is multiple, the multiple screens include the first screen and the second screen, and the second screen is disposed on the second surface or the third surface of the device main body;

a first ratio of the screen area of the first screen occupying the first side reaches a first threshold;

and a second proportion of the screen area of the second screen to the surface is smaller than the first threshold value, so that a frame is reserved on the surface of the second screen.

In the electronic device, preferably, a predetermined edge area of the metal shell of the second surface is provided with a first groove body, and an area of the metal shell of the third surface, which is matched with the predetermined edge area, is provided with a second groove body communicated with the first groove body;

the antenna is disposed within the first slot.

The electronic device preferably further includes: the first printed circuit board and the radio frequency module are used for receiving and transmitting radio frequency signals;

the antenna is arranged on the first printed circuit board;

the antenna is T-shaped, and comprises a first branch and a second branch which form two arms of the T-shaped antenna, and a third branch connected with the two arms;

the lengths of the first branch and the second branch are different, and the first branch and the second branch with different lengths are respectively used for generating different resonant frequencies; and the third branch is provided with an antenna signal feed point which is used for being connected with the radio frequency module through a feed line.

The electronic device preferably further comprises an audio playing component, and the antenna is arranged on the audio playing component.

In the electronic device, preferably, a predetermined vertex angle region of the metal shell of the second surface is provided with a third groove body, and a region of the metal shell of the third surface, which is matched with the predetermined vertex angle region, is provided with a fourth groove body communicated with the third groove body;

a first part of the antenna is arranged in the third groove body; and a second part of the antenna is arranged in the fourth slot body, or the second part of the antenna is formed when a slot is formed on the third surface to form the fourth slot body.

The electronic device preferably further includes: the second printed circuit board is arranged on the inner side of the metal shell of the second surface, and the radio frequency module is used for receiving and transmitting radio frequency signals;

the antenna is T-shaped and comprises a fourth branch, a fifth branch and a sixth branch, wherein the fourth branch and the fifth branch form two arms of the T-shaped antenna, and the sixth branch is connected with the two arms; at least part of the fourth branch and the fifth branch are arranged in the fourth groove body, or at least part of the fourth branch and the fifth branch are formed when a seam is formed on the third surface to form the fourth groove body; one end of the sixth branch is connected to the intersection point of the two arms, the other end of the sixth branch is led to the second printed circuit board through the third slot body, and the other end of the sixth branch, which is led to the second printed circuit board, is used as an antenna signal feed point and is connected with the radio frequency module through a feeder line;

the fourth branch and the fifth branch are different in length, and the fourth branch and the fifth branch which are different in length are respectively used for generating different resonant frequencies.

The electronic device described above, preferably, wherein:

the fourth branch comprises a first sub-branch; the first sub-branch is arranged in the fourth groove body or formed when a slit is formed on the third surface to form the fourth groove body;

alternatively, the first and second electrodes may be,

the fourth branch comprises a first sub-branch and a second sub-branch which are connected; the first sub-branch is arranged in the fourth groove body or formed when a slit is formed on the third surface to form the fourth groove body, and the second sub-branch is arranged in the third groove body.

The electronic device preferably further includes a second matching circuit connected to the antenna signal feed point and the radio frequency module, and configured to assist in adjusting performance of the antenna;

the second matching circuit is arranged on the second printed circuit board and is any one of an L-type matching circuit, a pi-type matching circuit or a double-L-type matching circuit formed by a plurality of resistors;

the second matching circuit further comprises a ground signal feed point arranged on the second printed circuit board, and the ground signal feed point is connected with the metal shell of the second surface so as to realize grounding.

According to the above scheme, the electronic device disclosed in the present application includes a device main body having a first screen, and an antenna, wherein the first screen is disposed on a first surface of the device main body, and the device main body further includes a second surface and a third surface that are different from the first surface and share at least one side; the at least part of second face and third face is the metal-back, and set up the cell body that is used for setting up the antenna that is linked together on the metal-back on second face and third face, promptly, this application carries out the overall arrangement setting of antenna based on the intercommunication cell body that carries out the fluting formation on the metal-back of equipment main part different face, avoided setting up the whole physical line body of antenna in the outside of electronic equipment display screen, thereby at least reduced the demand to clean space on the frame of electronic equipment display screen outside, can further provide support for electronic equipment's super narrow frame or comprehensive screen design. In addition, different surfaces of the device main body are communicated and grooved, so that the multi-surface radiation purpose can be achieved, the interference of the metal shell to the antenna field pattern is greatly reduced, and the overall radiation efficiency of the antenna is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a plurality of faces of an electronic device according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a plurality of faces of another electronic device in accordance with an embodiment of the present application;

fig. 4 is a schematic diagram of a communicating groove formed on a second surface and a third surface of an electronic device through a slot according to an embodiment of the present application;

fig. 5 is another schematic structural diagram of an electronic device provided in an embodiment of the present application;

fig. 6 is a diagram illustrating an example of antenna layout based on a connected slot on a second surface and a third surface of an electronic device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG. 8(a), FIG. 8(b), FIG. 8(c) are circuit configuration diagrams of L-type, pi-type, double L-type matching circuits, respectively;

fig. 8(d) is a schematic structural diagram of a T-shaped antenna disposed in a first slot on a second side according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 10 is a diagram illustrating another layout example of an antenna layout based on a communicating slot on a second surface and a third surface of an electronic device according to an embodiment of the present application;

fig. 11 is a schematic diagram of a first implementation form of antenna layout based on communicating slots on a second surface and a third surface of an electronic device according to an embodiment of the present application;

fig. 12 is a drawing of a WIFI antenna S11 debugged in the latter implementation of the antenna layout based on the connected slots on the second and third sides of the electronic device provided in this embodiment of the application;

fig. 13 is a schematic diagram of a second implementation form of an antenna layout based on communicating slots on a second surface and a third surface of an electronic device in the latter implementation form according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 15 is an external view of the device provided by the embodiment of the present application, in which a part of the antenna body is designed on the top side of the third surface shell of the device main body;

fig. 16 is a drawing of a WIFI antenna S11 debugged in the previous implementation of the antenna layout based on the connected slots on the second and third sides of the electronic device according to the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 embodiment of the application provides an electronic equipment, and aim at improves through the overall arrangement structure to electronic equipment antenna, reduces the demand to reserve space on the frame of electronic equipment display screen outside at least, provides support for electronic equipment's super narrow frame or comprehensive screen design to guarantee metal case formula electronic equipment's antenna radiation efficiency simultaneously. In a matching manner, the electronic device of the present application mainly refers to a metal-case electronic device with an antenna, and specifically, but not limited to, a mobile phone, a tablet computer, a notebook, a personal digital assistant, a palm computer or other electronic devices with an antenna and an operation function, which adopt a metal case. Typically, the device may be a mobile phone/tablet device with/without a folding function, or a computer product with a display screen on both the AB and BC sides.

Referring to fig. 1, an exemplary structural configuration of an electronic device according to an alternative embodiment of the present disclosure is shown, in which the electronic device may include:

an apparatus main body 10;

the device body 10 includes a first screen 101, the first screen 101 is disposed on a first surface 102 of the device body 10, the device body 10 further includes a second surface 103 and a third surface 104 different from the first surface 102, and the second surface 103 and the third surface 104 share at least one edge.

At least part of the second face 103 and the third face 104 of the apparatus body 10 is a metal shell.

The first surface 102 and the second surface 103 of the device body 10 are surfaces facing each other on the device body 10, and the third surface 104 is a surface formed by a side frame of the device body 10 and is interposed between the first surface 102 and the second surface 103 of the device body 10.

Optionally, in an implementation manner, the number of main bodies included in the device main body 10 of the electronic device may be one, for example, a smart phone or a tablet computer without a folding function is a device form in the implementation manner, in this implementation manner, as shown in fig. 2, the first surface 102 of the device main body 10 is a surface where a display screen (i.e., the first screen) of the smart phone or the tablet computer is located, the second surface 103 and the third surface 104 are a back surface and a side frame of the smart phone or the tablet computer, respectively, a dotted line in the drawing indicates that the pointing direction is directed to the back surface of the mobile phone/the tablet computer, and a dotted line here indicates that the indication line is blocked by the body. At least part of the back and side frames are metal shells.

In another implementation, the device body 10 of the electronic device may include more than one body, such as a first body and a second body, optionally, the first body and the second body can move relatively and can be in a folded state, and of course, the first body and the second body can also be in an unfolded state through the movement between the two bodies, that is, in this implementation, the electronic device can provide a folding function based on the relative movement between the first body and the second body. The specific product form example can be a notebook computer or a mobile phone/tablet computer with a folding function, wherein the first body can be any one of two bodies of the notebook computer or the mobile phone/tablet computer with the folding function, which can move mutually, and the second body is correspondingly the other one of the two bodies of the notebook computer or the mobile phone/tablet computer with the folding function, which can move mutually.

Wherein, referring to the example of fig. 3, the first body and the second body have a first face, a second face, and a third face, respectively; the first surface and the second surface of the first main body are opposite surfaces on the first main body, and the third surface of the first main body is a surface formed by the side frame of the first main body and is arranged between the first surface and the second surface of the first main body; the first surface and the second surface of the second body are opposite surfaces of the second body, the third surface of the second body is a surface formed by a side frame of the second body and is arranged between the first surface and the second surface of the second body, and the dotted line in fig. 3 also indicates that the indication line is shielded by the body. In the mutually overlapped state, the first surface of the first body and the first surface of the second body are respectively positioned at the overlapped sides. The back (such as the back of a mobile phone in an unfolded state or the A side and the D side of a notebook computer) and at least part of a side frame of a first main body and/or a second main body of an electronic device such as a notebook computer or a mobile phone/tablet computer with a folding function are metal shells.

In addition, the number of the screens of the electronic device may be multiple, and the multiple screens include the first screen 101 as described above and further include a second screen, which may be disposed on the second side 103 or the third side 104 of the device main body 10, specifically, for example, in addition to the display screen disposed on the B side of the notebook, another display screen is disposed on the a side of the notebook (i.e., the second side of the device main body) at the same time, or another display screen is disposed on the back side of the mobile phone with the folding function, and the other display screen on the back side of the notebook a side/folding mobile phone may be used as an auxiliary screen of the display screen on the front side of the notebook B side/folding mobile phone for displaying related information, such as displaying time information, incoming call information in the standby state/sleep state or screen state, or mapping display at least part of the information content of the main display screen by using the auxiliary screen in the normal operation mode or respectively displaying different parts of the matched information to display at least part of the main display screen in the normal operation mode And the double-screen display function is realized.

Optionally, in a situation that the screen of the electronic device includes the first screen and the second screen, a first ratio of the screen area of the first screen to the first surface reaches a first threshold; and a second proportion of the screen area of the second screen to the surface is smaller than the first threshold value, so that a frame is reserved on the surface of the second screen. Illustratively, for example, the first screen is a full screen whose frame width of the surface is smaller than 2mm (e.g. 1.8mm, 1.6mm, or 1.5mm, etc.), and the second screen is a non-full screen whose frame width is reserved with a wider frame (e.g. frame width is greater than 10mm), in practical applications, the first screen is used as a main screen, and the second screen is used as an auxiliary screen of the first screen.

It should be noted that the second screen may also be disposed on a C-plane of the notebook computer for displaying a virtual keyboard, related reference information, and the like, in an implementation, the device form of the electronic device may be diversified (for example, a device form in a rotary screen form, a plug-in device form, and the like formed between different bodies).

An antenna 20 for transmitting and/or receiving wireless signals;

the metal shells of the second surface 103 and the third surface 104 of the device main body 10 are provided with communicated slot bodies, and the slot bodies are used for arranging the antenna 20.

The antenna 20 may be, for example and without limitation, a WIFI antenna or a 5G antenna for providing wireless communication functions for the electronic device.

In order to at least reduce the occupation amount of the antenna to the clear space on the outer side frame of the display screen of the electronic equipment, the embodiment is provided with a communicating slot on the metal shells of the second surface 103 and the third surface 104 of the equipment main body 10, and the layout of the antenna is set based on the communicating slot formed on the metal case of the different sides of the device body, alternatively, the antenna may be set in the slot of the second side 103, alternatively, a portion of the antenna is disposed within the slot of the second face 103, another portion is disposed within the slot of the third face 104, alternatively, a part of the antenna is disposed in the slot of the second face 103, and another part of the antenna is formed by slitting the metal case at the third face 104, and so on, all physical line bodies of the antenna are prevented from being arranged on the outer side frame of the electronic equipment display screen, and the occupation amount of a clean space on the outer side frame of the electronic equipment display screen is correspondingly reduced.

Specifically, for example, a communication slot is formed in the metal shell of the back and side frames of the non-folding mobile phone, and the mobile phone antenna (e.g., WIFI antenna) is disposed at a corresponding position of the communication slot obtained by the slot, or a communication slot is formed in the metal shell of the side frames and the back (i.e., the a-side and/or D-side) of any one or both of the first body and the second body of the folding mobile phone or the notebook computer, and the device antenna is disposed at a corresponding position of the communication slot obtained by the slot, and the like.

In addition, in the traditional antenna design mode with the antenna setting in the headspace of display screen outside frame, antenna performance and field type all can receive a lot of restrictions and influence, and this application embodiment communicates the fluting through second face 103 and the third 104 at equipment main part 10 to communicate the cell body based on the fluting is obtained and is carried out the antenna overall arrangement, can also reach the multiaspect radiation purpose, has reduced metal casing to the interference of antenna field type.

In conclusion, this embodiment carries out the overall arrangement setting of antenna based on the intercommunication cell body that the fluting formed on the metal casing of the different faces of equipment main part, has avoided setting up the whole physical line body of antenna in the outside of electronic equipment display screen to at least, reduced the demand to clean space on the frame of electronic equipment display screen outside, can further provide support for electronic equipment's super narrow frame or comprehensive screen design. In addition, different surfaces of the device main body are communicated and grooved, so that the multi-surface radiation purpose can be achieved, the interference of the metal shell to the antenna field pattern is greatly reduced, and the overall radiation efficiency of the antenna is ensured.

This embodiment provides an alternative implementation of antenna layout based on communicating slots on the second and third faces of the device body. In this embodiment, referring to fig. 4, a predetermined edge region of the metal shell on the second surface of the device main body is provided with a first groove 401, and a region of the metal shell on the third surface, which is matched with the predetermined edge region, is provided with a second groove 402 communicated with the first groove 401.

An antenna of the electronic device, such as a WIFI antenna, is disposed in the first slot 401.

The antenna may be, but is not limited to, configured as a T-pattern (T-pattern) antenna, which includes a first branch and a second branch forming two arms of the antenna, and further includes a third branch connected to the two arms. Where the first branch and the second branch of the T-shaped antenna have different lengths, the differentiated design of the lengths can be used to generate different resonant frequencies at the different branches, for example, the length of the long-arm branch is designed to be 1/4 wavelengths of the 2.4G resonant frequency, and the length of the short-arm branch is designed to be 1/4 wavelengths of the 5G resonant frequency, so as to generate a 2.4G resonant frequency at the long-arm open-circuit branch and a 5G resonant frequency at the short-arm open-circuit branch. And the third branch of the antenna is provided with an antenna signal feed point for realizing signal feed connection with the radio frequency module of the electronic equipment.

In implementation, an antenna such as a T-shaped antenna may be disposed on the printed circuit board, and as shown in fig. 5, the electronic device in this embodiment may further include a first printed circuit board 30 for disposing the antenna, and a PCB antenna is formed by disposing the antenna on the first printed circuit board 30, and the PCB antenna such as a WIFI PCB antenna is tightly attached to the inside of the first slot of the second surface. In addition, the electronic device of this embodiment may further include a radio frequency module 40 for receiving and transmitting radio frequency signals, and the antenna signal feed point on the third branch of the T-shaped antenna is connected to the radio frequency module 30 through a feed line.

Referring to fig. 6, a size example diagram of the device main body in which the second surface and the third surface are grooved and the antenna is disposed is provided, where a 27mm × 2mm first slot is disposed on the second surface (e.g., the back surface of an unfolded mobile phone, the back surface of a body in an unfolded state of a folded mobile phone, or the a surface/D surface of a notebook computer), a 40mm × 3mm second slot is disposed on the third surface (e.g., the side frame of the mobile phone or the side frame of the notebook computer), the first slot is communicated with the second slot, the WIFI PCB antenna is tightly attached inside the 27mm × 2mm first slot, the antenna can be designed as a T-pattern (e.g., as a T-shaped region in the first slot of fig. 6), the long-arm open-circuit branch can generate one resonant frequency such as 2.4G, and the short-arm open-circuit branch can generate another resonant frequency such as 5G.

In this embodiment, based on the above overall arrangement to the antenna, on the one hand the antenna can produce the coupling effect with the cell body of equipment main part second face to reach the broad bandwidth with the branch combined action that opens a way itself, on the other hand, the cell body that the usable equipment main part third face of antenna intercommunication fluting formed reaches the multiaspect radiation purpose, and the field pattern interference of antenna will reduce greatly like this, has guaranteed the whole radiation efficiency of antenna.

In the above-mentioned embodiment of antenna layout, as shown in fig. 7, optionally, the electronic device may further include a first matching circuit 50 connected to the antenna signal feed point and the rf module 40, for assisting in adjusting the antenna performance.

The first matching circuit, as shown in fig. 8(a), 8(b), and 8(c), may be any one of an L-type matching circuit, a pi-type matching circuit, or a double L-type matching circuit formed by a plurality of resistors, and specifically, the matching circuit may be connected between a cable line and a signal feeding point as shown in fig. 8 (d).

Electronic equipment usually adopts a Multi-antenna design mode based on MIMO (multiple Input multiple Output) to enhance the overall throughput of the antenna and make the antenna communication capability more stable, typically, two antennas are generally provided in the electronic equipment, in which case, it is preferable to place two MIMO antennas on the main body of the equipment in a mirror image manner.

In addition, optionally, in implementation, the antenna can be arranged on the audio playing component of the electronic device, so that the integrated design of the antenna and the audio playing component is realized, for example, the antenna holder and the horn combo are integrated, and the occupation of the device space can be reduced and more space is made for the device based on the flexible design.

Next, another alternative embodiment of antenna layout based on communicating slots on the second and third faces of the device body continues to be provided. In this embodiment, a predetermined vertex angle region of the metal shell of the second surface of the device main body is provided with a third groove body, and a region of the metal shell of the third surface, which is matched with the predetermined vertex angle region of the second surface, is provided with a fourth groove body communicated with the third groove body.

A first part of the antenna is arranged in the third groove body; a second portion of the antenna is disposed within the fourth slot, or the second portion of the antenna is formed when the fourth slot is formed by slitting the third face.

Referring to fig. 9, in an embodiment of the present invention, the electronic device may further include a second printed circuit board 60 for disposing an antenna and a radio frequency module 40 for receiving and transmitting radio frequency signals, an RF signal feeder of the radio frequency module 40 is soldered on a PCB platelet of the second printed circuit board 60, a signal of the RF signal feeder is connected to the antenna body, a ground signal feeder on the PCB platelet is connected to a metal shell (such as an a-side/D-side metal shell of a notebook) on a second side of the device main body, and a copper-exposed area is reserved on a back side of the synchronous PCB platelet and is connected to the D-shell through a double-sided conductive cloth or foam.

Similar to the first embodiment provided above, the antenna may also be designed as a T-shape (essentially T-like), the T-shape antenna comprising a fourth branch and a fifth branch forming two arms of the T-shape, and further comprising a sixth branch joining the two arms; at least part of the fourth branch and the fifth branch are arranged in a fourth groove body on the third surface of the equipment main body, or at least part of the fourth branch and the fifth branch are formed when a slit is formed on the third surface to form the fourth groove body; one end of the sixth branch is connected to the intersection point of the two T-shaped arms, and the other end of the sixth branch is led to the second printed circuit board through the third slot body, and the other end of the sixth branch, which is led to the second printed circuit board, is used as an antenna signal feed point and is connected with the radio frequency module 40 through a feeder line.

Specifically, as shown in fig. 10, the antenna layout is performed in the above manner, where 1001 is the fourth branch or a part of the fourth branch of the T-shaped antenna, 1002 is the fifth branch of the T-shaped antenna, 1003 is the sixth branch of the T-shaped antenna, in the implementation, a slot may be formed in a third side of the device body, such as a side frame that interfaces with the D-side of the notebook, and two arms of the T-shaped antenna may be formed by adding antenna branches such as those shown at 1001 and 1002 to the slotted body, or, because the third surface of the device main body adopts the metal shell, the two arms of the T-shaped antenna can be formed by the metal shell reserved between the two notches by directly slotting the third surface (such as two notches with the diameter of 1.5 mm-2 mm in figure 10), and for the sixth branch, the antenna can be formed by leading copper foil from the intersection point of the two T-shaped arms to the second printed circuit board, and the intersection point of the copper foil and the second printed circuit board is the antenna signal feed point.

The lengths of the fourth branch and the fifth branch of the T-shaped antenna are different, and the fourth branch and the fifth branch with different lengths are respectively used for generating different resonant frequencies, for example, the fourth branch generates a 2G resonant frequency, the fifth branch generates a 5G resonant frequency, and the like.

In this embodiment, the antenna layout can be further realized in the following two forms.

The antenna layout implementation form one:

the fourth branch of the T-shaped antenna comprises a first sub-branch; the first sub-branch is arranged in the fourth groove body or formed when a slit is formed on the third surface to form the fourth groove body; referring to fig. 11, the open-circuit branch 2 in the drawing forms the fourth branch, that is, the first sub-branch, the open- circuit branches 3 and 1 are respectively the fifth branch and the sixth branch of the T-shaped antenna, and 4 and 5 are two notches on the third surface, in the implementation, the third surface is grooved, and the antenna branch shown in fig. 2 and the antenna branch shown in fig. 3 are additionally arranged on the groove body to form two antenna arms, or the two antenna arms can be directly formed on the metal shell on the third surface by digging out the two notches shown in fig. 4 and 5 and using the metal shell reserved between the two notches to form the two antenna arms.

In the first implementation form, the open-circuit branch is emitted from the T-shaped antenna feeding point to form a monopole antenna radiation pattern, the length of the open-circuit branch 2 is about a quarter wavelength of a desired resonant frequency (e.g. 2G) (the length of the open-circuit branch can be adjusted according to the wavelength shortening effect of the medium in practical environment), and the resonant mode generates the lowest resonant frequency f1 of the high-frequency band, as shown in S11 of fig. 12; the length of the open-circuit branch 3 is about a quarter wavelength of another desired resonant frequency (e.g., 5G) (the length of the open-circuit can be adjusted by considering the wavelength shortening effect of the medium according to the actual environment), the resonant mode generates the lowest resonant frequency f2 of the high-frequency band, as shown in fig. 12, S11, and the open-circuit branch 2 and the open-circuit branch 3 respectively generate a coupling effect with the slot body between the metal shells (the size of the slot body can be adjusted according to the actual terminal environment), and achieve a wider bandwidth by cooperating with the open-circuit branch itself.

The antenna layout implementation form two:

the fourth branch of the T-shaped antenna includes a first sub-branch and a second sub-branch which are connected, the first sub-branch is disposed in the fourth slot or formed when the slot is opened on the third surface to form the fourth slot, as shown in fig. 13, the second sub-branch is disposed in the third slot, and the second sub-branch is used for adjusting the antenna pattern. In the implementation, similarly, the open- circuit branches 2 and 7 in fig. 13 respectively form the first sub-branch and the second sub-branch of the fourth branch, the open- circuit branches 3 and 1 respectively form the fifth branch and the sixth branch of the T-shaped antenna, and 4 and 5 respectively form two notches on the third surface, and the antenna branch shown in 2 and the antenna branch shown in 3 in fig. 13 are additionally arranged on the tank body to form the basic parts of the two arms of the antenna, or the metal shell on the third surface directly forms the basic parts of the two arms of the antenna by digging out the two notches shown in 4 and 5 and using the metal shell reserved between the two notches, and forms the complete two arms of the antenna by guiding copper foil (as the second self-branch) into the tank body on the second surface on the branch 2.

In the second implementation form, the open branch is emitted from the feeding point to form a monopole antenna radiation pattern, and the total length of the open branch 2 and the open branch 7 is about a quarter wavelength of a desired resonant frequency (e.g. 2G) (the length of the open branch can be adjusted according to the wavelength shortening effect of the medium in practical environment), and this resonant mode generates the lowest resonant frequency f1 of the high frequency band, as shown in S11 of fig. 12; meanwhile, the coupling (shown as 8 in fig. 13) between the open circuit branch 2 and the open circuit branch 7 generates secondary resonance, and the gap and the width between the open circuit branch 2 and the open circuit branch 7 are adjusted (the gap width formed between the branch 2 and the branch 7 is adjusted and the branch widths of the branch 2 and the branch 7 are adjusted), so that the frequency falls between the bandwidths of 5G to 6G, and the frequency can be superposed with the resonance frequency of the open circuit branch 3 to play a role in enhancing radiation; the length of the open branch 3 is about a quarter wavelength of another desired resonant frequency (e.g. 5G) (the length of the open branch can be adjusted according to the wavelength shortening effect of the medium under consideration of the practical environment), and this resonant mode generates the lowest resonant frequency f2 in the high frequency band, as shown in fig. 12, S11; in addition, the open circuit branch 2 and the open circuit branch 3 respectively generate coupling action with the slot body between the metal shells (the size of the slot body is adjusted according to the actual terminal environment), and the wide bandwidth is achieved under the combined action of the open circuit branch and the open circuit branch.

Optionally, in the latter embodiment of the antenna layout, as shown in fig. 14, the electronic device may further include a second matching circuit 70 connected to the antenna signal feed point and the rf module 40, for assisting in adjusting the antenna performance.

The second matching circuit 70 is disposed on the second printed circuit board, and is any one of an L-type matching circuit, a pi-type matching circuit, or a double L-type matching circuit formed by a plurality of resistors, which can be specifically shown in fig. 8(a) -8 (c). The second matching circuit further comprises a ground signal feed point arranged on the second printed circuit board, and the ground signal feed point is connected with the metal shell of the second surface so as to realize grounding.

In implementation, optionally, as shown in fig. 15, the antenna body may be designed on the top side of the third surface housing of the main body of the device in appearance, and the antenna structure and the metal shell NMT (nano injection molding) are integrally formed, so that the antenna radiation pattern is not affected by the turning and shielding of the rotating shaft between the internal devices of the electronic device and different main bodies, and the optimal radiation can be achieved.

In addition, similarly, for a MIMO-based multi-antenna design mode generally adopted by electronic equipment, as two antennas are generally arranged in the electronic equipment, it is also preferable to place two MIMO antennas on the main body of the equipment in a mirror image manner, and accordingly, the overall throughput of the antennas can be enhanced, so that the communication capability of the antennas is more stable.

When carrying out two kinds of above-mentioned implementation methods of antenna layout on the cell body of the different faces of equipment that provide based on this application embodiment, when designing antenna (like the WIFI antenna) on the terminal product, the antenna can be hidden under the equipment main part screen completely (or combine to set up partly of antenna on equipment side frame), has avoided the characteristics in the whole headspace that sets up the antenna in equipment screen side frame in traditional mode, just so the frame just only need 1-2mm about the structure space can, thereby can reach the effect of the design of outward appearance "frameless".

In addition, different surfaces of the device main body are communicated and grooved, multi-surface radiation can be achieved, interference of the metal shell on the antenna field pattern is greatly reduced, and the overall radiation efficiency of the antenna is guaranteed.

Referring to fig. 16, an S11 diagram of a WIFI antenna debugged in the previous implementation of antenna layout on different planar slot bodies of the device in the present embodiment is provided, and referring to fig. 12, an S11 diagram of a WIFI antenna debugged in the latter implementation of antenna layout on different planar slot bodies of the device in the present embodiment is provided, where S11 is one of S parameters, and represents return loss characteristics, and a dB value and impedance characteristics of loss of the WIFI antenna are generally seen by a network analyzer, where the parameter represents a good or bad of the transmission efficiency of the antenna, and the larger the value is, the larger the energy reflected by the antenna itself is, and thus the efficiency of the antenna is worse. In addition, with continuing reference to table 1 below, WIFI antenna GAIN (antenna GAIN) data for the latter implementation for down-test is shown:

TABLE 1

	efficiency	efficiency.dB
			2400	39％	-4.1
2450	40％	-4.0
			2500	39％	-4.1
			5150	50％	-3.0
5250	46％	-3.4
			5350	45％	-3.5
5470	45％	-3.5
			5600	42％	-3.8
5725	42％	-3.8
			5750	44％	-3.6
5800	44％	-3.6
			5850	44％	-3.6

Based on the relevant debugging data in fig. 16, fig. 12 and table 1, it can be known that the overall radiation efficiency of the antenna in the present application is superior, and the effectiveness and the obtained positive technical effect of the solution in the present application are further demonstrated.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

For convenience of description, the above system or apparatus is described as being divided into various modules or units by function, respectively. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.

From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.

Finally, it is further noted that, herein, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one instance or operation from another instance or operation without necessarily requiring or implying any actual such relationship or order between such instances or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (8)

1. An electronic device, comprising:

an apparatus main body; the device body comprises a first screen, the first screen is arranged on a first surface of the device body, the device body further comprises a second surface and a third surface which are different from the first surface, and the second surface and the third surface share at least one edge;

an antenna for transmitting and/or receiving a wireless signal;

at least part of the second surface and the third surface of the equipment main body is a metal shell, and the metal shells of the second surface and the third surface of the equipment main body are provided with communicated groove bodies which are used for arranging the antenna;

a preset edge area of the metal shell on the second surface is provided with a first groove body, and an area, matched with the preset edge area, of the metal shell on the third surface is provided with a second groove body communicated with the first groove body;

the antenna is arranged in the first groove body, so that the antenna can be completely hidden under the first screen;

or a preset vertex angle area of the metal shell of the second surface is provided with a third groove body, and an area, matched with the preset vertex angle area, of the metal shell of the third surface is provided with a fourth groove body communicated with the third groove body;

a first part of the antenna is arranged in the third groove body; and a second part of the antenna is arranged in the fourth slot body, or the second part of the antenna is formed when a slot is formed on the third surface to form the fourth slot body.

2. The electronic device according to claim 1, the device body comprising a first body and a second body, the first body and the second body being relatively movable and capable of being in a mutually superimposed state;

the first body and the second body have a first face, a second face, and a third face, respectively;

wherein the first and second faces on the first body are opposing faces on the first body; the third surface of the first main body is a surface formed by the side frame of the first main body and is arranged between the first surface and the second surface of the first main body; the first and second faces on the second body are opposite faces on the second body; the third surface of the second main body is a surface formed by the side frame of the second main body and is arranged between the first surface and the second surface of the second main body;

in the mutually overlapped state, the first surface of the first body and the first surface of the second body are respectively positioned at the overlapped side.

3. The electronic device according to claim 1 or 2, the electronic device having a plurality of screens including the first screen and a second screen, the second screen being provided on a second face or a third face of the device main body;

a first ratio of the screen area of the first screen occupying the first side reaches a first threshold;

and a second proportion of the screen area of the second screen to the surface is smaller than the first threshold value, so that a frame is reserved on the surface of the second screen.

4. The electronic device of claim 1, further comprising: the first printed circuit board and the radio frequency module are used for receiving and transmitting radio frequency signals;

the antenna is arranged on the first printed circuit board;

the antenna is T-shaped, and comprises a first branch and a second branch which form two arms of the T-shaped antenna, and a third branch connected with the two arms;

the lengths of the first branch and the second branch are different, and the first branch and the second branch with different lengths are respectively used for generating different resonant frequencies; and the third branch is provided with an antenna signal feed point which is used for being connected with the radio frequency module through a feed line.

5. The electronic device defined in claim 1 further comprising an audio playback component, the antenna being disposed on the audio playback component.

6. The electronic device of claim 1, further comprising: the second printed circuit board is arranged on the inner side of the metal shell of the second surface, and the radio frequency module is used for receiving and transmitting radio frequency signals;

the antenna is T-shaped and comprises a fourth branch, a fifth branch and a sixth branch, wherein the fourth branch and the fifth branch form two arms of the T-shaped antenna, and the sixth branch is connected with the two arms; at least part of the fourth branch and the fifth branch are arranged in the fourth groove body, or at least part of the fourth branch and the fifth branch are formed when a seam is formed on the third surface to form the fourth groove body; one end of the sixth branch is connected to the intersection point of the two arms, the other end of the sixth branch is led to the second printed circuit board through the third slot body, and the other end of the sixth branch, which is led to the second printed circuit board, is used as an antenna signal feed point and is connected with the radio frequency module through a feeder line;

the fourth branch and the fifth branch are different in length, and the fourth branch and the fifth branch which are different in length are respectively used for generating different resonant frequencies.

7. The electronic device of claim 6, wherein:

the fourth branch comprises a first sub-branch; the first sub-branch is arranged in the fourth groove body or formed when a slit is formed on the third surface to form the fourth groove body;

alternatively, the first and second electrodes may be,

the fourth branch comprises a first sub-branch and a second sub-branch which are connected; the first sub-branch is arranged in the fourth groove body or formed when a slit is formed on the third surface to form the fourth groove body, and the second sub-branch is arranged in the third groove body.

8. The electronic device of claim 6, further comprising a second matching circuit coupled to the antenna signal feed and the radio frequency module to assist in adjusting antenna performance;

the second matching circuit is arranged on the second printed circuit board and is any one of an L-type matching circuit, a pi-type matching circuit or a double-L-type matching circuit formed by a plurality of resistors;

the second matching circuit further comprises a ground signal feed point arranged on the second printed circuit board, and the ground signal feed point is connected with the metal shell of the second surface so as to realize grounding.

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