CN216389704U

CN216389704U - Antenna assembly, antenna device and electronic equipment

Info

Publication number: CN216389704U
Application number: CN202122635606.0U
Authority: CN
Inventors: 李萌
Original assignee: Shenzhen Furi Zhongnuo Electronic Technology Co ltd
Current assignee: Shenzhen Furi Zhongnuo Electronic Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-26
Anticipated expiration: 2031-10-29

Abstract

The utility model provides an antenna assembly, an antenna device and an electronic device, wherein the antenna assembly comprises: the antenna comprises a first antenna, a second antenna and a third antenna which are arranged in sequence; a first signal feed-in point is arranged on the first antenna; a first gap is formed between the second antenna and the first antenna, and a first feed point and a second feed point are arranged on the second antenna; a second gap is formed between the third antenna and the second antenna, and a second signal feed-in point is arranged on the third antenna; the first signal feed-in point and the first feed-in point form a first signal path, so that the first antenna and the second antenna jointly radiate a first wireless signal; the second signal feed-in point and the second feed-in point form a second signal path, so that the second antenna and the third antenna jointly radiate a second wireless signal. The antenna assembly has strong radiation capability and wide radiation frequency band, and can meet the radiation requirement of 5G communication.

Description

Antenna assembly, antenna device and electronic equipment

Technical Field

The present invention relates to the field of electronic devices, and in particular, to an antenna assembly, an antenna device, and an electronic device.

Background

With the rapid development of communication technology, communication devices have become an indispensable tool in people's life, and bring great convenience to various aspects of users' life. An antenna for radiating a signal is provided in a communication device, but a general antenna assembly is provided with only a single radiator, and a signal feed point and a feed point are provided in the single radiator. When a signal feed-in point and a signal feed-out point are arranged on a single radiator at the same time, only a unique wireless signal can be radiated, and the problem of narrow radiation frequency band can exist, so that the radiation performance of the antenna can be influenced, and the radiation requirement of future 5G communication cannot be met.

SUMMERY OF THE UTILITY MODEL

Accordingly, an object of the present invention is to provide an antenna assembly, an antenna device, and an electronic device, which have high radiation capability and a wide radiation frequency band and can satisfy the radiation requirement of 5G communication.

According to a first aspect of the utility model, there is provided an antenna assembly comprising: a first antenna, a second antenna and a third antenna;

a first signal feed-in point is arranged on the first antenna; a first gap is formed between the second antenna and the first antenna, and a first feed point and a second feed point are arranged on the second antenna; a second gap is formed between the third antenna and the second antenna, and a second signal feed-in point is arranged on the third antenna;

the first signal feed-in point and the first feed-in point form a first signal path, so that the first antenna and the second antenna jointly radiate a first wireless signal;

the second signal feed-in point and the second feed-in point form a second signal path, so that the second antenna and the third antenna jointly radiate a second wireless signal.

In an alternative embodiment, the first antenna includes a first radiating segment, and the second antenna includes a second radiating segment and a third radiating segment; the third antenna comprises a fourth radiating segment;

the first radiation section radiates a low-frequency signal of the first wireless signal; the second radiation section is coupled with an ultrahigh frequency signal of the first wireless signal;

the fourth radiation section radiates a medium-high frequency signal of the second wireless signal, and the third radiation section is coupled with an ultrahigh frequency signal of the second wireless signal.

In an optional embodiment, the second antenna further includes an isolation segment, and the first feed point and the second feed point are respectively disposed at two ends of the isolation segment.

In an alternative embodiment, the length of the isolation segment is equal to or greater than 3 millimeters.

In an alternative embodiment, the first antenna has a length in a range between 45 mm and 55 mm.

In an alternative embodiment, the length of the second antenna ranges between 35 mm and 40 mm.

In an alternative embodiment, the length of the first gap ranges between 1 mm and 2 mm, and/or the length of the second gap ranges between 1 mm and 2 mm.

According to a second aspect of the present invention, there is provided an antenna device comprising:

an antenna assembly, which is the antenna assembly in the above embodiment;

a tuning circuit electrically connected to the first feed point and the second feed point of the antenna assembly;

when the first signal feed-in point and the first feed-out point form the first signal path, the tuning circuit realizes return to the ground;

and when the second signal feed-in point and the second feed-in point form the second signal path, the tuning circuit realizes return to the ground.

According to a third aspect of the present invention, there is provided an electronic apparatus comprising: a housing, an antenna assembly and a motherboard; the antenna assembly and the mainboard are arranged in the shell, and the antenna assembly is the antenna assembly of the embodiment; and a first signal feed-in point, a first feed-out point, a second signal feed-in point and a second feed-out point of the antenna assembly are connected with the mainboard.

Optionally, the housing includes a first housing and a second housing, and the first housing and the second housing cooperate with each other to form a housing structure for accommodating the main board; the first shell is made of a metal material and comprises the antenna assembly.

By applying the technical scheme of the embodiment of the utility model, a plurality of antenna components are arranged, a first signal feed-in point is arranged on a first antenna, two feed-in points are arranged on a second antenna, and a second signal feed-in point is arranged on a third antenna, so that a first signal path is formed between the first signal feed-in point and the first feed-in point, and a first wireless signal is radiated; so that the second signal feed-in point and the second feed-out point form a second signal path. Compared with the prior art, the technical scheme of the application has the advantages of stronger radiation capability and wider radiation frequency band, and can meet the radiation requirement of 5G communication.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the utility model;

FIG. 2 is a schematic structural diagram of an antenna assembly according to an embodiment of the present invention;

fig. 3 is a second structural diagram of the electronic device according to the embodiment of the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A general antenna assembly of an electronic device is provided with only a single radiator, and a signal feed point and a feed point are provided on the single radiator. When a signal feed-in point and a signal feed-out point are arranged on a single radiator at the same time, only a unique wireless signal can be radiated, and the problem of narrow radiation frequency band can exist, so that the radiation performance of the antenna can be influenced, and the radiation requirement of future 5G communication cannot be met.

Based on the technical problem, the utility model provides an antenna assembly, an antenna device and electronic equipment, wherein the antenna assembly has strong radiation capability and a wider radiation frequency band, and can meet the radiation requirement of 5G communication.

The technical solution of the present invention will be described below with reference to specific examples.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the utility model; fig. 2 is a schematic structural diagram of an antenna assembly according to an embodiment of the present invention.

The embodiment of the application provides an electronic device, the electronic device can be intelligent devices such as a smart phone, a tablet computer and an intelligent bracelet.

The electronic device 100 includes a housing 11, a display 12, a main board 14, a battery, and the like. The display 12 is mounted on the housing 11 to form a display surface of the electronic device 100 for displaying information such as images and texts. The display 12 may be a liquid crystal display or a light-emitting diode (LED) display.

The housing 11 is used to form an outer contour of the electronic apparatus 100 so as to accommodate electronic devices, functional components, and the like of the electronic apparatus 100, while sealing and protecting the electronic devices and functional components inside the electronic apparatus. For example, functional components of the electronic apparatus 100 such as a camera, a main board, a vibration motor, and a battery may be disposed inside the housing 11.

The housing 11 may include a middle frame and a rear cover combined with each other to form the housing 11, and the middle frame and the rear cover may form a receiving space to receive the main board 14, the display 12, the battery, and the like. Further, a cover plate may be included, and the cover plate may be fixed to the housing 11, and the cover plate and the housing 11 form a closed space to accommodate the main board, the display 12, the battery, and the like.

In some embodiments, a cover plate is attached to the center frame, a rear cover is attached to the center frame, the cover plate and the rear cover are located on opposite sides of the center frame, and the cover plate and the rear cover are located opposite each other.

In some embodiments, the housing 11 may be a metal housing, such as a metal such as magnesium alloy, stainless steel, and the like. It should be noted that the material of the housing 11 in the embodiment of the present application is not limited to this, and other manners may also be adopted, such as: the housing 11 may be a plastic housing or a ceramic housing, the housing 11 may include a plastic part and a metal part, and the housing 11 may be a housing structure in which metal and plastic are matched with each other

The main board is disposed inside the housing 11. The motherboard may be a motherboard of the electronic device 100. One or more of functional components such as a processor, a camera, an earphone interface, an acceleration sensor, a gyroscope, a motor and the like can be integrated on the mainboard. Meanwhile, the display screen 12 may be electrically connected to the main board to control the display of the display screen 12 by a processor on the main board.

A battery is disposed inside the housing 11, and the battery is electrically connected to the main board to supply power to the electronic device 100. Wherein, a power management circuit can be arranged on the mainboard. The power management circuit is used to distribute the voltage provided by the battery to the various electronic devices in the electronic apparatus 100.

The display screen 12 may include a display area and a non-display area, where the display area may be used to display a picture of the electronic device 100 or provide a user with touch control; the top area of the non-display area is provided with an opening for conducting sound and light, and the bottom of the non-display area can be provided with functional components such as a fingerprint module, a touch key and the like.

Note that the structure of the display screen 12 is not limited to this. For example, the display 12 may be a full-face screen or an odd-shaped screen. It should be noted that, in some embodiments, the display 12 may not include the non-display area, but may be configured as a full-screen structure, and the functional components such as the distance sensor and the ambient light sensor may be disposed below the display or at other positions.

In the embodiment of the present application, an antenna assembly is further disposed in the electronic device 100. The antenna assembly is used for realizing the wireless communication function of the electronic device 100, such as the 4G or 5G wireless communication function of the electronic device. The antenna assembly is disposed inside the housing 11 of the electronic device 100. It is understood that, part of the components of the antenna assembly may be integrated on a main board inside the housing 11, for example, the signal processing chip and the signal processing circuit in the antenna assembly may be integrated on the main board. Furthermore, some components of the antenna assembly may also be arranged directly inside the housing 11, i.e. the individual antennas of the antenna assembly may be arranged directly inside the housing 12.

In an embodiment of the present application, an antenna assembly includes: a first antenna 131, a second antenna 132, and a third antenna 133;

a first signal feed-in point 134 is arranged on the first antenna 131; a first gap is formed between the second antenna 132 and the first antenna 131, and a first feeding point 136 and a second feeding point 137 are arranged on the second antenna 132; a second gap is formed between the third antenna 133 and the second antenna 132, and a second signal feed point 135 is disposed on the third antenna 133.

The first signal feeding point 134 and the first feeding point 136 form a first signal path, so that the first antenna 131 and the second antenna 132 jointly radiate a first wireless signal; the second signal feeding point 135 and the second feeding point 137 form a second signal path, so that the second antenna 132 and the third antenna 133 jointly radiate a second wireless signal.

The first signal feed-in point and the second signal feed-in point are used for connecting a signal source, the first feed-in point and the second feed-in point are used for connecting a ground plane, and the ground plane can be a whole machine reference ground of the electronic equipment.

The first feed point and the second feed point can be connected with the ground plane by welding or screw connection.

The antenna assembly transmits or receives 4G radiation signals and can also be used for transmitting or receiving 5G radiation signals.

In the embodiment of the application, a plurality of antennas are arranged, a first signal feed-in point is arranged on a first antenna, two feed-in points are arranged on a second antenna, and a second signal feed-in point is arranged on a third antenna, so that a first signal path is formed between the first signal feed-in point and the first feed-in point, and a first wireless signal is radiated; so that the second signal feed-in point and the second feed-out point form a second signal path. Compared with the prior art, the technical scheme of the application has the advantages of stronger radiation capability and wider radiation frequency band, and can meet the radiation requirement of 5G communication.

The first feedpoint 136 and the second feedpoint 137 are connected to a ground plane on the motherboard, specifically, the first feedpoint 136 may be connected to the ground plane on the motherboard by a first connecting member, the second feedpoint 137 may be connected to the ground plane on the motherboard by a second connecting member, and the first connecting member and the second connecting member may be metal sheets or metal wires.

In an alternative embodiment, the first antenna 131 includes a first radiating segment 1311, and the second antenna 132 includes a second radiating segment 1321 and a third radiating segment 1322; the third antenna 133 includes a fourth radiation segment 1331; the first radiation section 1311 radiates a low-frequency signal of the first wireless signal; an ultra-high frequency signal of the first wireless signal is coupled out of the second radiation section 1321; the fourth radiation segment 1331 radiates a medium-high frequency signal of the second wireless signal, and the third radiation segment 1322 couples an ultrahigh frequency signal of the second wireless signal. Optionally, the first wireless signal and the second wireless signal are different frequency band signals of a 4G signal, or the first wireless signal and the second wireless signal are different frequency band signals of a 5G signal.

In this embodiment, the first wireless signal and the second wireless signal are formed by the above technical solution to radiate the communication signal, so that the radiation performance of the antenna assembly can be improved, and the requirement for higher-speed communication application is met.

In an alternative embodiment, the second antenna 132 further includes an isolation segment 1323, and the isolation segment 1323 is disposed between the second radiation segment 1321 and the third radiation segment 1322.

The first feed-through point 136 and the second feed-through point 137 are respectively disposed at two ends of the isolation section 1323. The length of the isolation section 1323 affects the isolation between the second radiation section 1321 and the third radiation section 1322, and if the length of the isolation section 1323 is short, signals radiated by the second radiation section 1321 and the third radiation section 1322 interfere with each other, so the length of the isolation section 1323 needs to be set to a minimum length to ensure that signals radiated by the second radiation section 1321 and the third radiation section 1322 do not interfere. Optionally, the length of the isolation segment 1323 ranges from 3 mm or more, specifically may be 4 mm, or 5 mm, or another length value. The length of the isolation segment 1323 may be limited by the width set by the handset.

In an alternative embodiment, the first antenna 131 is used for radiating a low frequency band of 4G signals or 5G signals, that is, an N5 frequency band or an N8 frequency band of the 5G signals, a resonant frequency of an N5 frequency band is 824MHZ to 894MHZ, and a resonant frequency of an N8 frequency band is 880MHZ to 960 MHZ.

The length of the first antenna 131 ranges from 45 mm to 55 mm. Optionally, the length of the first antenna 131 may be 45 mm, 50 mm, or 55 mm.

In an alternative embodiment, the second antenna 133 is configured to radiate a 4G signal or a 5G signal in a medium-high frequency band, that is, in an N77 frequency band or an N78 frequency band of the 5G signal, a resonant frequency of the N77 frequency band is 3300MHZ to 4200MHZ, and a resonant frequency of the N78 frequency band is 3300MHZ to 3800 MHZ.

The length of the second antenna 133 ranges between 35 mm and 40 mm. Optionally, the length of the second antenna 133 may be 35 mm, 38 mm, or 40 mm.

In an alternative embodiment, the second radiation segment 1321 and the third radiation segment 1322 of the second antenna 133 are used for radiating uhf bands of 4G signals or 5G signals. The second radiation segment 1321 is a radiation segment coupled with the first antenna 131, and is used for radiating an N77 frequency band and an N78 frequency band of a 5G signal; the third radiation segment 1322 is a radiation segment coupled to the second antenna 132, and is used for radiating an N79 frequency band of the 5G signal. Wherein, the resonance frequency of the N78 frequency band is 3300 MHZ-3800 MHZ, and the resonance frequency of the N79 frequency band is 4400 MHZ-5000 MHZ.

In an alternative embodiment, the width of the first gap may affect the coupling strength of the first radiation section to the second radiation section, and the width of the second gap may affect the coupling strength of the fourth radiation section to the third radiation section, so that the widths of the first gap and the second gap need to be set to corresponding values to plan the radiation frequency band. The length of the first gap ranges from 1 mm to 2 mm; the length of the second gap ranges between 1 mm and 2 mm. In other embodiments, the first gap and the second gap may also be set to other values.

According to the second aspect of the embodiments of the present application, there is also provided an antenna device and an antenna assembly, where the antenna assembly is the antenna assembly according to the above embodiments.

The antenna assembly includes: a first antenna, a second antenna and a third antenna;

the first signal feed-in point and the first feed-in point form a first signal path, so that the first antenna and the second antenna jointly radiate a first wireless signal; the second signal feed-in point and the second feed-in point form a second signal path, so that the second antenna and the third antenna jointly radiate a second wireless signal; a tuning circuit electrically connected to the first feed point and the second feed point of the antenna assembly; when the first signal feed-in point and the first feed-out point form the first signal path, the tuning circuit realizes return to the ground; and when the second signal feed-in point and the second feed-in point form the second signal path, the tuning circuit realizes return to the ground.

According to a third aspect of the embodiments of the present application, an electronic device is further provided, please refer to fig. 3, and fig. 3 is a second schematic structural diagram of the electronic device according to an embodiment of the present application.

The electronic device includes: a housing, an antenna assembly and a motherboard; the antenna assembly and the mainboard are arranged in the shell, and the antenna assembly is the antenna assembly of the embodiment; and a first signal feed-in point, a first feed-out point, a second signal feed-in point and a second feed-out point of the antenna assembly are connected with the mainboard.

Optionally, the housing 11 includes a first housing 111 and a second housing 112, and the first housing 111 and the second housing 112 cooperate with each other to form a housing structure for accommodating the main board 14; the first housing 111 is made of a metal material, and the first housing 111 is the antenna assembly, or the antenna assembly is mounted on the first housing 111.

The antenna assembly includes a first antenna, a second antenna, and a third antenna.

Optionally, the second housing 112 may be made of a metal material, or a plastic material, or a ceramic material, and the first housing 111 and the second housing 112 form a cavity for accommodating components such as a display screen, a motherboard, and a battery.

In an alternative embodiment, the electronic device further includes other components, again without limitation.

The electronic equipment can be intelligent equipment such as a smart phone, a smart tablet and a smart bracelet.

By applying the technical scheme of the embodiment of the utility model, the electronic equipment is provided with a plurality of antenna assemblies on the shell, a first signal feed-in point is arranged on the first antenna, two feed-in points are arranged on the second antenna, and a second signal feed-in point is arranged on the third antenna, so that a first signal path is formed by the first signal feed-in point and the first feed-in point, and a first wireless signal is radiated; so that the second signal feed-in point and the second feed-out point form a second signal path. Compared with the prior art, the technical scheme of the application has the advantages of stronger radiation capability and wider radiation frequency band, and can meet the radiation requirement of 5G communication.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

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

The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims

1. An antenna assembly, comprising: a first antenna, a second antenna and a third antenna;

2. The antenna assembly of claim 1, wherein the first antenna comprises a first radiating segment, and the second antenna comprises a second radiating segment and a third radiating segment; the third antenna comprises a fourth radiating segment;

3. The antenna assembly of claim 2, wherein the second antenna further comprises an isolation segment, wherein the first feed point and the second feed point are disposed at two ends of the isolation segment, respectively.

4. The antenna assembly of claim 3, wherein the length of the spacer segment is 3 millimeters or greater.

5. The antenna assembly of claim 1, wherein the first antenna has a length ranging between 45 millimeters and 55 millimeters.

6. The antenna assembly of claim 1, wherein the length of the second antenna ranges between 35 millimeters and 40 millimeters.

7. The antenna assembly of claim 1, wherein the length of the first gap ranges between 1 millimeter and 2 millimeters, and/or the length of the second gap ranges between 1 millimeter and 2 millimeters.

8. An antenna device, comprising:

an antenna assembly according to any one of claims 1 to 7;

9. An electronic device, comprising:

a housing, an antenna assembly and a motherboard; the antenna assembly and the main board are arranged in the shell, and the antenna assembly is the antenna assembly of any one of claims 1 to 7; and a first signal feed-in point, a first feed-out point, a second signal feed-in point and a second feed-out point of the antenna assembly are connected with the mainboard.

10. The electronic device of claim 9, wherein the housing comprises a first housing and a second housing, the first housing and the second housing cooperating to form a housing structure that houses the motherboard; the first shell is made of a metal material and comprises the antenna assembly.