CN113067146B

CN113067146B - Electronic device

Info

Publication number: CN113067146B
Application number: CN202110350823.7A
Authority: CN
Inventors: 王义金; 简宪静; 陈俊兵
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2023-03-17
Anticipated expiration: 2041-03-31
Also published as: CN113067146A

Abstract

The application discloses electronic equipment belongs to communication technology field, and this electronic equipment includes: mainboard, frame and around locating the metal frame of frame periphery, electronic equipment still includes: a first antenna and a second antenna; the metal frame is provided with a broken seam so as to divide the metal frame into a first metal arm and a second metal arm, and the first metal arm is connected with the mainboard through a first feed structure to form a first antenna; the second antenna is fixed on the frame, the first antenna is positioned in the main radiation direction of the second antenna, and a gap is formed between the second antenna and the first antenna; the first part of the metal frame opposite to the second antenna is composed of a first insulating material layer and a second insulating material layer, and the first insulating material layer and the second insulating material layer have different dielectric constants. The antenna can be arranged in the same area of the electronic equipment, so that the occupied space of the antenna is reduced.

Description

Electronic device

Technical Field

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

Background

In the related art, different antennas need to be disposed in different areas, for example: the millimeter wave antenna and the FR1 antenna are arranged in different areas.

With the development of communication technology, the number of antennas on electronic equipment is more and more, and the frequency band is wider and wider; the product occupation ratio of electronic equipment such as mobile phones is higher and higher. Therefore, the installation space reserved for the antenna on the electronic device is less and less, and how to accommodate such a large number of antennas in a given electronic device and satisfy the communication requirements, even the communication requirements of the electronic device in different forms, such as a free state, a handheld state, and the like, is a difficult problem to be solved urgently.

Disclosure of Invention

The embodiment of the application aims to provide an electronic device, which can arrange two different antennas in the same antenna installation area, so that the occupied space of the antennas in the electronic device is reduced.

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

an embodiment of the present application provides an electronic device, including: mainboard, frame and around locating the metal frame of frame periphery, electronic equipment still includes:

a first antenna and a second antenna;

the metal frame is provided with a broken seam so as to divide the metal frame into a first metal arm and a second metal arm, and the first metal arm is connected with the mainboard through a first feed structure to form the first antenna;

the second antenna is fixed on the frame, the first antenna is positioned in the main radiation direction of the second antenna, and a gap is formed between the second antenna and the first antenna;

the first part, opposite to the second antenna, of the metal frame is composed of a first insulating material layer and a second insulating material layer, the second insulating material layer is clamped between the first insulating material layer and the second antenna, and the second insulating material layer and the second antenna are arranged at intervals through gaps;

wherein the first layer of insulating material and the second layer of insulating material have different dielectric constants.

Optionally, the second antenna includes a radiator, and an orthogonal projection area of the metal frame on the radiator is less than or equal to 20% of an area of a first side surface of the radiator, where the first side surface is a radiation surface of the radiator.

Optionally, the second antenna includes n antenna units arranged at intervals, where n is an integer greater than 1;

one side, facing the second antenna, of the first insulating material layer is provided with n second grooves, and the n second grooves are in one-to-one correspondence with the n antenna units respectively;

the second insulating material layer comprises n insulating material layer units, and the n insulating material layer units are respectively filled in the n second grooves;

and the orthographic projections of the n antenna units on the second insulating material layer are respectively positioned in the areas where the n insulating material layer units are positioned.

Optionally, one side of the first insulating material layer facing the second antenna is provided with at least one protruding rib, and the at least one protruding rib abuts against the second antenna and is not in contact with the radiator of the second antenna.

a third groove is formed in one side, facing the second antenna, of the first insulating material layer, and the third groove is arranged corresponding to the n antenna units;

the second insulating material layer is filled in the third groove.

Optionally, one side of the second insulating material layer facing the second antenna is provided with at least one protruding rib, and the at least one protruding rib abuts against the second antenna and is not in contact with the radiator of the second antenna.

Optionally, the frame is a metal frame, a gap is formed between a second portion of the metal frame and the metal frame, the gap is communicated with the broken seam, and the second portion includes the first metal arm and the second metal arm.

Optionally, the metal frame is provided with a fourth groove, the second antenna is erected on the opening side of the fourth groove to form a first gap between the second antenna and the groove bottom of the fourth groove, and the first feed structure penetrates through the first gap to be connected with the motherboard.

Optionally, the first antenna is an FR1 frequency band antenna, and the second antenna is a millimeter wave antenna.

Optionally, the electronic device further includes:

and the second metal arm is connected with the main board through a second feed structure to form the third antenna, wherein the first antenna and the third antenna are FR1 antennas.

In the embodiment of the application, a metal frame is divided into a first metal arm and a second metal arm by forming a broken seam on the metal frame, and the first metal arm is connected with the main board through a first feed structure to form the first antenna; and fixing the second antenna on the frame, wherein the first antenna is positioned in the main radiation direction of the second antenna, a gap is formed between the second antenna and the first antenna, the first part, right opposite to the second antenna, of the metal frame is composed of a first insulating material layer and a second insulating material layer, so that the transmitting and receiving signals of the second antenna cannot be shielded by the metal frame, and meanwhile, the penetration efficiency of the radiation signals sent by the second antenna in the first insulating material layer and the second insulating material layer can be adjusted by forming the first part of the metal frame by the first insulating material layer and the second insulating material layer, so that the radiation performance of the second antenna is improved. Therefore, the feeding of the first antenna is realized, and the radiation performance of the second antenna which can be arranged close to the first antenna is ensured, so that the first antenna and the second antenna can be arranged in the same area on the electronic equipment, and the problem of large occupied space of the antenna caused by the fact that the first antenna and the second antenna are respectively arranged in different areas of the electronic equipment is avoided.

Drawings

Fig. 1 is a side view of an electronic device provided in an embodiment of the present application;

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure after hiding a first insulating material layer;

FIG. 4 is an enlarged view of area B of FIG. 3;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure after hiding a first insulating material layer and a second insulating material layer;

FIG. 6 is an enlarged view of area C of FIG. 5;

FIG. 7 is a front view of area C of FIG. 5;

fig. 8 is a radiation effect diagram of a second antenna in an electronic device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a first insulating material layer and a second insulating material layer in another electronic device provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of a second insulating material layer in another electronic device provided in 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 some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 7, an embodiment of the present application provides an electronic device, including: the antenna comprises a main board 1, a frame 2, a metal frame 3 wound on the periphery of the frame 2, a first antenna 4 and a second antenna 5;

the metal frame 3 is provided with a broken seam 30 to divide the metal frame 3 into a first metal arm 31 and a second metal arm 32, and the first metal arm 31 is connected with the main board 1 through a first feed structure 33 to form a first antenna 4;

the second antenna 5 is fixed on the frame 2, the first antenna 4 is located in the main radiation direction (direction X shown in fig. 1) of the second antenna 5, and a gap 50 is formed between the second antenna 5 and the first antenna 4;

the first part, facing the second antenna, of the metal frame 3 is composed of a first insulating material layer 35 and a second insulating material layer 36, the second insulating material layer 36 is sandwiched between the first insulating material layer 35 and the second antenna 5, and the second insulating material layer 36 and the second antenna 5 are arranged at intervals through a gap 50;

wherein the first insulating material layer 35 and the second insulating material layer 36 have different dielectric constants.

It should be noted that, in order to facilitate observing the internal structure of the electronic device, structures such as a rear cover and a display screen of the electronic device are hidden in the drawings provided in the embodiment of the present application, in practical applications, the main board 1 of the electronic device provided in the embodiment of the present application is sandwiched between the frame 2 and the rear cover, and one side of the frame 2, which is away from the main board 1, is used for fixing the display screen.

In a specific implementation, the first antenna 4 and the second antenna 5 may be different types of antennas, for example: the first Antenna 4 is a low-band Antenna (i.e., FR1 Antenna), and the second Antenna 5 is a millimeter-wave Antenna (i.e., FR2 Antenna), wherein, as shown in fig. 7, the FR2 Antenna is a millimeter-wave array Antenna module (AiP), which may be an integrated module including a millimeter-wave array Antenna (the millimeter-wave array Antenna shown in fig. 7 includes 4 millimeter-wave Antenna units 51 arranged at intervals), a Radio Frequency Integrated Circuit (RFIC), and a Power Management Integrated Circuit (PMIC). At this time, the main radiation direction of the above-described millimeter wave array antenna may be a direction perpendicular to the exposed surfaces of the 4 millimeter wave antenna elements 51 as shown in fig. 7.

For convenience of understanding and explanation, in the embodiment of the present application, only the first antenna 4 is an FR1 antenna, and the second antenna 5 is an FR2 antenna, which is taken as an example for illustration, and no specific limitation is made herein, for example: the first antenna 4 is a loop antenna or the like.

Of course, in a specific implementation, the first antenna 4 and the second antenna 5 may also be other types of antennas, and are not limited in particular.

In a specific implementation, there is a gap between the second insulating material layer 36 and the second antenna 5, and the influence of the insulating material layer on the radiation performance of the second antenna 5 can be reduced by the gap.

In addition, the first portion of the metal frame 3 facing the second antenna 5 may be a portion located in the main radiation direction of the second antenna 5 and located by the orthographic projection of the second antenna 5 on the metal frame 3. In addition, the first portion of the metal bezel 3 facing the second antenna 5 is composed of the first insulating material layer 35 and the second insulating material layer 36, and it can be understood that: a first portion of the metal frame 3 facing the second antenna 5 is cut off to form a hollow window 34 on the metal frame 3, and a first insulating material layer 35 and a second insulating material layer 36 are stacked in the hollow window 34 to fill the missing portion of the metal frame 3. In addition, the hollow window 34 does not exceed the area that can be shielded by the rear cover of the electronic device, so as to ensure that the appearance of the whole electronic device is not damaged.

In addition, the hollow window 34 functions as: the main radiation surface of the second antenna 5 is at least partially exposed to the metal frame 3 through the empty window 34, so as to reduce the shielding effect of the metal frame on the radiation signal of the second antenna 5, wherein the main radiation surface of the second antenna 5 represents a surface of the second antenna 5 facing the main radiation direction thereof. In this way, the second antenna 5 can radiate radio frequency signals to the outside of the electronic device.

In addition, when the first antenna 4 is located in the main radiation direction of the second antenna 5, as shown in fig. 1, the bottom of the hollow window 34 may be formed by the radiator (i.e., the first metal arm 31 and the second metal arm 32) of the first antenna 4.

In a specific implementation, in the case where the dielectric constant of the insulating material is changed, the transmission performance of electromagnetic waves of different frequencies in the material may be different. The thickness and dielectric constant of the material have an effect on the frequency of the transmitted electromagnetic waves.

In practical applications, for the first antenna 4, the radiated rf signal first contacts the first insulating material layer 35, and in order to improve the antenna performance of the first antenna 4, the first insulating material layer 35 with a sufficiently low dielectric constant may be used to improve the radiation performance of the first antenna 4.

For the second antenna 5, the second insulating material layer 36 and the first insulating material layer 35 in the main radiation direction of the second antenna 5 will affect the radiation signal thereof, in this embodiment of the application, by adjusting the dielectric constant, the shape structure, and the like of the second insulating material layer 36, on the premise that the radiation performance of the first antenna 4 is not reduced, by adjusting the dielectric constant and the thickness of the first insulating material layer 35 and the second insulating material layer 36, the frequency with better transmission performance of the electromagnetic wave in the structure of the combination of the two materials is within the working frequency band of the second antenna 5, so that the transmission effect of the radiation signal emitted by the second antenna 5 in the front housing thereof is improved, and the external radiation performance of the second antenna 5 is improved.

In practical applications, the thickness combinations of the first insulating material layer 35 and the second insulating material layer 36 may be different thickness combinations and different dielectric constant combinations according to the effect of millimeter wave electromagnetic signal transmission; and the shapes of the first insulating material layer 35 and the second insulating material layer 36 may be regular or irregular shapes, and are not particularly limited herein.

In addition, the second insulating material layer 36 is interposed between the first insulating material layer 35 and the second antenna 5, and it can be understood that: the orthographic projection of the second antenna 5 in the x-direction of the coordinate axes as shown in fig. 1 is located within the coverage of the second insulating-material layer 36.

In this way, the probability that the radio frequency signal emitted from the main radiating surface of the second antenna 5 penetrates through the second insulating material layer 36 can be increased, so as to prevent the radio frequency signal emitted from the main radiating surface of the second antenna 5 from directly penetrating through the first insulating material layer 35, and thus the penetration efficiency of the radio frequency signal in the first insulating material layer 35 is poor.

It should be noted that, in practical applications, besides the first insulating material layer 35 and the second insulating material layer 36 may be filled in the empty window 34, multiple (3 or more) insulating material layers may also be sequentially disposed in the empty window 34, so that the dielectric constants of the multiple insulating material layers are gradually changed, and the transmission performance of the millimeter waves is optimized more finely, where the number of the insulating material layers filled in the empty window 34 and the dielectric constants of the insulating material layers are not specifically limited.

In addition, the above-mentioned main radiation direction of the first antenna 4 located on the second antenna 5 can be understood as: the first metal arm 31 is located in the main radiation direction of the second antenna 5 (that is, the bottom of the hollow 34 may be formed by the first metal arm 31 and the second metal arm 32), and the second antenna 5 and the first antenna 4 are adjacently disposed (for example, the distance between the first metal arm 31 and the first antenna 4 may be less than 1 cm, or even only 1 mm or 2 mm). That is to say, the second antenna 5 is close to the region of the metal frame 3 where the first metal arm 31 and the second metal arm 32 are disposed, and it is only necessary to ensure that there is a gap between the second antenna 5 and the first metal arm 31 and the second metal arm 32.

Further, the first metal arm 31 may be longer than the second metal arm 32, and at this time, the first metal arm 31 (i.e., the long arm) is connected to the main board 1 through the first feeding structure 33, so that the long arm of the first antenna 4 may operate in the first frequency band or the second frequency band, and the second metal arm 32 (i.e., the short arm) may operate in the third frequency band, which may be different from each other.

In the present embodiment, the metal frame 3 is provided with the hollow window 34 to reduce the shielding of the metal frame 3 from the second antenna 5, thereby reducing the radiation interference to the second antenna 5.

In addition, in a specific implementation, the frame 2 may include a partial metal structure, and the region of the metal frame 3 except for the first metal arm 31 and the second metal arm 32 may be connected to the metal structure, such that an end of the first metal arm 31 away from the gap 30 and an end of the second metal arm 32 away from the gap 30 are grounded through the metal structure, respectively. For example: the region of the frame 2 near the first metal arm 31 and the second metal arm 32 is provided as an insulating structure, and the other regions are provided as metal structures, or the frame 2 is entirely provided as a metal structure, and the slit 20 and the like are provided at the position of the frame 2 near the first metal arm 31 and the second metal arm 32.

In a specific implementation, the number of the slits 30 formed in the metal bezel 3 may be 2 or more, so as to divide the metal bezel 3 into a plurality of antennas, and the number of the slits 30 is not particularly limited.

Optionally, as shown in fig. 6, the frame 2 is a metal frame, and a gap 20 is formed between a second portion of the metal frame 3 and the metal frame 2, the gap 20 is communicated with the broken seam 30, and the second portion includes a first metal arm 31 and a second metal arm 32.

In an implementation, the metal frame 2 and the metal bezel 3 may be integrally formed metal structures.

In the present embodiment, the frame 2 is made of an all-metal structure, and the slit 20 communicating with the slit 30 is opened in the region of the metal frame located between the second antenna 5 and the first antenna 4, so that the metal frame 3 is partially cut into the first metal arm 31 and the second metal arm 32, and the second antenna 5 and the first antenna 4 are insulated from each other.

Optionally, the gap 30 and/or the gap 20 are filled with an insulating material.

In an implementation, the insulating material may be an insulating plastic.

The insulating material filled in the gap 30 and the gap 20 may be the same as the insulating material in the first insulating material layer 35, or may even be an integrally formed structure.

In this way, it is ensured that the electronic device is visually intact and that the structural strength is not impaired by the break 30 and/or the gap 20.

Optionally, the second antenna 5 includes a radiator, and an orthogonal projection area of the metal frame 3 on the radiator is less than or equal to 20% of an area of a first side surface of the radiator, where the first side surface is a radiation surface of the radiator.

In a specific implementation, a surface of the radiator facing the main radiation direction of the second antenna 5 is a radiation surface of the radiator. For example: as shown in fig. 7, the second antenna 5 includes 4 radiation units 51, and the radiators of the 4 radiation units are respectively exposed on the main radiation surface of the second antenna 5 (i.e. the surface of the second antenna 5 facing the window 34), so that the orthographic projection area of the metal frame 3 on each radiator is less than or equal to 20% of the area of the first side surface of the radiator.

In addition, an orthographic projection area of the metal bezel 3 on the radiator, which is less than or equal to 20% of an area of the first side surface of the radiator, may be represented as: the shielding height of the radiator in the z direction in the coordinate axes shown in fig. 1 by the metal frame 3 is less than or equal to 20% of the height of the radiator in the z direction.

Thus, the performance of the millimeter wave emitted by the second antenna 5 can be effectively radiated, and the performance of the antenna is not greatly reduced due to the excessive shielding of the metal frame 3.

Optionally, as shown in fig. 2, 4 and 6, the second antenna 5 includes n spaced antenna units 51, where n is an integer greater than 1;

n second grooves (not numbered) are formed in one side, facing the second antenna 5, of the first insulating material layer 35, and the n second grooves are respectively arranged in one-to-one correspondence with the n antenna units 51;

the second insulating material layer 36 includes n insulating material layer units 361, and the n insulating material layer units 361 are respectively filled in the n second grooves;

the orthographic projections of the n antenna elements 51 on the second insulating material layer 36 are respectively located in the areas where the n insulating material layer elements 361 are located.

In an implementation, the n second grooves are respectively disposed in one-to-one correspondence with the n antenna units 51, and may be represented as: each second recess is located opposite to the corresponding antenna element 51, so that the orthographic projection of each antenna element 51 on the second insulating material layer 36 is located in the area of the corresponding insulating material layer 361.

In addition, the second antenna 5 including n spaced antenna elements 51 may be understood as: the second antenna 5 is a millimeter wave array antenna in the millimeter wave antenna module, and the millimeter wave array antenna includes n millimeter wave antenna units 51 arranged at intervals.

In this embodiment, n is equal to 4, which is taken as an example for illustration, and in a specific implementation, n may also be another integer according to actual needs, and is not limited herein.

In this embodiment, the second insulating material layer 36 is provided as n insulating material layer units 361, and the n insulating material layer units are respectively embedded in the second grooves corresponding to the antenna units 51 on the first insulating material layer 35, so that the connection between the first insulating material layer 35 and the second insulating material layer 36 can be more firm.

Further, as shown in fig. 2, in order to realize the gap between the second insulating material layer 36 and the second antenna 5, the following steps may be performed:

one side of the first insulating material layer 35 facing the second antenna 5 is provided with at least one convex rib 37, and the at least one convex rib 37 is abutted against the second antenna 5 and is not in contact with a radiator of the second antenna 5.

In an implementation, a side of the first insulating material layer 35 facing the second antenna 5 may be protruded in a direction approaching the second antenna 5 to form a rib 37, and a tip of the rib 37 abuts on a region of the second antenna 5 except for the radiator.

In the specific implementation, the rib 37 is located between two adjacent insulating material layer units 361, and in the embodiment shown in fig. 2, 3 ribs 37 are disposed on the first insulating material layer 35.

In the present embodiment, the rib 37 is provided on the first insulating material layer 35 so that the rib 37 is supported between the second antenna 5 and the first insulating material layer 35, thereby improving the reliability of the structure between the first insulating material layer 35 and the second antenna 5 and ensuring that a certain gap is maintained between the first insulating material layer 35 and the second antenna 5.

Of course, in the implementation, in order to realize the gap between the second insulating material layer 36 and the second antenna 5, the second antenna 5 and the first insulating material layer 35 embedded with the second insulating material layer 36 may be fixed on the metal middle frame of the electronic device after the gap is reserved between the two layers.

Optionally, as shown in fig. 6, the metal frame is provided with a fourth groove, the second antenna 5 is erected on the open side of the fourth groove to form a first gap 21 between the second antenna 5 and the bottom of the fourth groove, and the first feeding structure 33 passes through the first gap 21 to be connected with the motherboard 1.

In the present embodiment, a fourth groove is formed in the metal frame, so that the first feeding structure 33 can pass through the fourth groove to form the first gap 21 between the second antenna 5 and the bottom of the fourth groove, so as to achieve connection with the main board 1 located on the side of the second antenna 5 facing away from the first antenna 4. In this way, the length of the first feeding structure 33 can be shortened to improve the feeding performance of the first antenna 4.

Optionally, the first feeding structure 33 is a first feeding Flexible Circuit board (FPC), and a specific position where the first feeding FPC is connected to the first metal arm 31 may be adjusted according to actual requirements, so as to excite the FR1 antenna to obtain more resonant modes.

In practical applications, one end of the first feeding FPC may be connected to the first metal arm 31 by screws, and the other end of the first feeding FPC is connected to the main board 1.

Of course, besides the above-mentioned feeding FPC structure, the first feeding structure 33 may also be a feeding line, a feeding tongue, etc., and the material of the feeding FPC may be polyimide film (PI), modified polyimide film (MPI), liquid Crystal Polymer (LCP), etc., and the feeding FPC may also be connected to the metal frame 3 by welding, and the specific form and material of the first feeding structure 33 are not limited herein.

Further, the first antenna 4 further includes an impedance matching network and an impedance switch, and in the case that the first feeding structure 33 is a first feeding FPC, the impedance matching network and the impedance switch of the first antenna 4 may be disposed on the first feeding FPC and located in the first gap 21.

In this embodiment, the impedance matching function of the first antenna 4 can be realized by arranging the impedance matching network (for example, a collective parameter device, which may specifically include components such as a capacitor and an inductor) and the impedance switch of the first antenna 4 on the feed FPC, so that the first antenna 4 can perform a better impedance input, thereby improving the antenna performance of the first antenna 4.

Optionally, the electronic device further includes:

and a third antenna (not numbered), wherein the second metal arm 32 is connected to the main board 1 through a second feeding structure (not shown) to form the third antenna, and the first antenna 4 and the third antenna are FR1 antennas.

In implementation, the second feeding structure is the same as the first feeding structure 33 shown in fig. 6, and will not be described herein.

In a specific implementation, the first antenna 4 and the third antenna are FR1 antennas, and it can be understood that: the first antenna 4 is a first FR1 antenna and the third antenna is a second FR1 antenna. And the first antenna 4 and the third antenna may operate in different operating frequency bands, respectively.

The slit 30 may divide the metal bezel 3 into a first metal arm 31 and a second metal arm 32 having equal lengths, or the first metal arm 31 may be longer than the second metal arm 32.

Further, the metal frame is further provided with a fifth groove, the second antenna 5 is erected on the opening side of the fifth groove, so that a second gap is formed between the second antenna 5 and the groove bottom of the fifth groove, and the second feed structure penetrates through the second gap to be connected with the main board 1.

In this embodiment, the second feeding structure is the same as the first feeding structure 33 in the embodiment shown in fig. 1 to 5, and the formation structure of the second gap is the same as the formation structure of the first gap 21 in the embodiment shown in fig. 1 to 5, which is not described herein again. In addition, the length of the second feeding structure can be shortened to improve the feeding performance of the third antenna.

Further, the second feeding structure is a second feeding FPC, the third antenna further includes an impedance matching network and an impedance switch, and the impedance matching network and the impedance switch of the third antenna are disposed on the second feeding FPC and in the second gap.

In this embodiment, the impedance matching network and the impedance switch of the third antenna have the same structures and functions as the impedance matching network and the impedance switch of the first antenna 4 in the embodiments shown in fig. 1 to 5, and are not described again here.

In this embodiment, the second metal arm 32 is connected to the main board 1 through the second feeding structure to form a third antenna, so that the first antenna, the second antenna and the third antenna are simultaneously arranged in the same antenna arrangement area, the installation space of the antenna on the electronic device can be further reduced, and the screen occupation ratio of the electronic device is improved.

Alternatively, as shown in fig. 7, the hollow window 34 may include a first recess and a second recess, the second recess is located in the main radiation direction (x direction shown in fig. 1) of the second antenna 5, wherein the first recess is formed by the metal frame 3 being recessed downward in the z direction (i.e. the direction close to the frame 2) shown in fig. 1, and the second recess is formed by the groove bottom of the first recess being recessed downward continuously in the z direction shown in fig. 1.

In this way, the sinking depth of the first sunken part in the hollow window 34, which is not in the main radiation direction of the second antenna 5, is less than the sinking depth of the second sunken part in the main radiation direction of the second antenna 5, so that the rear cover can be connected with the part of the metal frame 3 where the first sunken part is located, and the shielding of the metal frame 3 on the main radiation direction of the second antenna 5 is reduced. So as to improve the radiation performance of the second antenna 5 on the basis of not influencing the appearance of the electronic equipment.

Specifically, as shown in fig. 8, compared with the actual Gain of the millimeter wave array antenna in the electronic device without the first insulating material layer 35 and the second insulating material layer 36, the actual Gain (real Gain) of two polarizations (horizontal polarization and vertical polarization) of the second antenna 5 (millimeter wave array antenna) of the electronic device shown in fig. 1 to 7 provided in the embodiments of the present application is improved to different degrees in the frequency band from 24.25GHz to 29.5 GHz. Therefore, the radiation performance of the second antenna 5 can be improved in the embodiment of the present application.

In the embodiment of the application, a metal frame is divided into a first metal arm and a second metal arm by forming a broken seam on the metal frame, and the first metal arm is connected with the main board through a first feed structure to form the first antenna; and fixing the second antenna on the frame, wherein the first antenna is positioned in the main radiation direction of the second antenna, a gap is formed between the second antenna and the first antenna, the first part, right opposite to the second antenna, of the metal frame is composed of a first insulating material layer and a second insulating material layer, so that the transmitting and receiving signals of the second antenna cannot be shielded by the metal frame, and meanwhile, the penetration efficiency of the radiation signals sent by the second antenna in the first insulating material layer and the second insulating material layer can be adjusted by forming the first part of the metal frame by the first insulating material layer and the second insulating material layer, so that the radiation performance of the second antenna is improved. Like this, realized the feed of first antenna promptly, ensured the radiation performance of the second antenna that can close to first antenna setting again for in same region on electronic equipment, can set up first antenna and second antenna, in order to avoid setting up first antenna and second antenna respectively in electronic equipment's different regions and the big problem of antenna occupation space that causes.

Referring to fig. 9 and 10, an embodiment of the present application provides another electronic device, where the electronic device shown in fig. 9 and 10 has the same advantages as the electronic device shown in fig. 1 to 7, and both of them can simultaneously provide an FR2 antenna in an area of the electronic device where the FR1 antenna is provided, so as to fully utilize space and enable the FR1 antenna and the FR2 antenna to have good communication effects. The other electronic device shown in fig. 9 and 10 is different in that:

the second antenna 5 comprises n antenna units 51 arranged at intervals, wherein n is an integer larger than 1;

a third groove is formed in one side of the first insulating material layer 35 facing the second antenna 5, and the third groove is arranged corresponding to the n antenna units 51;

the second insulating material layer 36 is filled in the third groove.

In a specific implementation, the third groove is disposed corresponding to n antenna units 51, and it can be understood that: the third grooves are opposite to the n antenna units 51, and the orthographic projection of the antenna units 51 on the first insulating material layer 35 is located in the area where the third grooves are located. Thus, when the second insulating material layer 36 is filled in the third recess, the orthographic projection of the antenna element 51 on the second insulating material layer 36 is located in the area where the second insulating material layer 36 is located. That is, the second insulating material layer 36 completely blocks the main radiation surface of the second antenna 5.

The difference between this embodiment and the electronic device in the embodiment shown in fig. 1 to 7 is that the electronic device in the embodiment shown in fig. 1 to 7 needs to open n second grooves on the first insulating material layer 35, and embed n second insulating material layer units 361 in the corresponding second grooves respectively; in the electronic device in this embodiment, only 1 third groove needs to be formed in the first insulating material layer 35, and the second insulating material layer 36 having an integral structure is embedded in the third groove.

As can be seen from the above, compared with the electronic devices in the embodiments shown in fig. 1 to fig. 7, the electronic device provided in the embodiments of the present application has a simpler structure and a simpler manufacturing process.

Optionally, as shown in fig. 10, at least one rib 37 is disposed on a side of the second insulating material layer 36 facing the second antenna 5, and the at least one rib 37 abuts against the second antenna and is not in contact with the radiator of the second antenna.

The rib 37 of the present embodiment has the same structure and function as the rib 37 of the embodiment shown in fig. 2, except that the rib 37 of the present embodiment is integrally formed with the second insulating material layer 36, and the rib 37 of the embodiment shown in fig. 2 is integrally formed with the first insulating material layer 35. The specific structure and function of the rib 37 in the present embodiment will not be specifically described.

The electronic device in the embodiment shown in fig. 9 and 10 has the same advantageous effects as the electronic device in the embodiment shown in fig. 1 to 7, and on this basis, the electronic device in the embodiment shown in fig. 9 and 10 can also simplify the structures of the first insulating material layer 35 and the second insulating material layer 36 to simplify the production process of the electronic device.

It should be noted that, in this document, 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 a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electronic device, comprising: mainboard, frame and around locating the metal frame of frame periphery, electronic equipment still includes: a first antenna and a second antenna;

the metal frame is provided with a broken seam so as to divide the metal frame into a first metal arm and a second metal arm, and the first metal arm is connected with the main board through a first feed structure so as to form the first antenna;

the first part, opposite to the second antenna, of the metal frame is composed of a first insulating material layer and a second insulating material layer, the second insulating material layer is clamped between the first insulating material layer and the second antenna, and the second insulating material layer and the second antenna are arranged at intervals through the gap;

the first insulating material layer and the second insulating material layer have different dielectric constants, the operating band of the second antenna includes a first frequency, and the transmission performance of the electromagnetic wave of the first frequency penetrating through the first insulating material layer and the second insulating material layer is greater than or equal to a preset performance.

2. The electronic device according to claim 1, wherein the second antenna includes a radiator, and an orthogonal projection area of the metal bezel on the radiator is less than or equal to 20% of an area of a first side of the radiator, wherein the first side is a radiation surface of the radiator.

3. The electronic device of claim 1, wherein the second antenna comprises n spaced apart antenna elements, n being an integer greater than 1;

one side, facing the second antenna, of the first insulating material layer is provided with n second grooves, and the n second grooves are respectively arranged in one-to-one correspondence with the n antenna units;

4. The electronic device according to claim 3, wherein a side of the first insulating material layer facing the second antenna is provided with at least one rib, and the at least one rib abuts against the second antenna and is not in contact with a radiator of the second antenna.

5. The electronic device of claim 1, wherein the second antenna comprises n spaced apart antenna elements, n being an integer greater than 1;

the second insulating material layer is filled in the third groove.

6. The electronic device according to claim 5, wherein a side of the second insulating material layer facing the second antenna is provided with at least one rib, and the at least one rib abuts against the second antenna and is not in contact with a radiator of the second antenna.

7. The electronic device of claim 1, wherein the frame is a metal frame, and a gap is formed between a second portion of the metal bezel and the metal frame, the gap being in communication with the break, the second portion comprising the first metal arm and the second metal arm.

8. The electronic device according to claim 7, wherein the metal frame is provided with a fourth groove, the second antenna is erected on an open side of the fourth groove to form a first gap between the second antenna and a groove bottom of the fourth groove, and the first feeding structure passes through the first gap to be connected with the main board.

9. The electronic device of claim 1, wherein the first antenna is an FR1 band antenna and the second antenna is a millimeter wave antenna.

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