CN108493574B

CN108493574B - Antenna assembly and electronic equipment

Info

Publication number: CN108493574B
Application number: CN201810202162.1A
Authority: CN
Inventors: 唐海军; 王新宝
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2020-08-04
Anticipated expiration: 2038-03-12
Also published as: CN108493574A

Abstract

The embodiment of the application provides an antenna module and electronic equipment, the antenna module includes: the antenna structure is provided with a feeding point, a first grounding point and a second grounding point, wherein the feeding point is arranged between the first grounding point and the second grounding point; a radio frequency module coupled with the feed point on the antenna structure; and the switch assembly is coupled with the first grounding point and the second grounding point on the antenna structure respectively, and switches the first grounding point or the second grounding point to be grounded according to the position of the base station. The antenna assembly can control the antenna structure to radiate wireless signals towards one end of the base station, so that the stability of the antenna structure for receiving and transmitting the wireless signals can be improved, and the stability of the electronic equipment for receiving and transmitting the wireless signals can be improved.

Description

Antenna assembly and electronic equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to an antenna assembly and an electronic device.

Background

With the development of network technology and the increase of the intelligence degree of electronic devices, users can implement more and more functions, such as voice call, video chat, playing network games, and the like, through electronic devices such as smart phones.

In the process of executing functions such as voice call, video chat and the like, the electronic device needs to perform data interaction with a base station or a server. During the data interaction process, the electronic device needs to transmit wireless signals through the antenna. When the antenna of the electronic device is not aligned with the base station, the signal stability of the antenna is affected.

Disclosure of Invention

The embodiment of the application provides an antenna assembly and electronic equipment, which can improve the stability of receiving and transmitting wireless signals of the electronic equipment.

An embodiment of the present application provides an antenna assembly, includes:

the antenna structure is provided with a feeding point, a first grounding point and a second grounding point, wherein the feeding point is arranged between the first grounding point and the second grounding point;

a radio frequency module coupled with the feed point on the antenna structure;

and the switch assembly is coupled with the first grounding point and the second grounding point on the antenna structure respectively, and switches the first grounding point or the second grounding point to be grounded according to the position of the base station.

The embodiment of the application also provides electronic equipment, which comprises a rear cover and an antenna assembly, wherein the antenna assembly is installed in the rear cover, and the antenna assembly is the antenna assembly.

The antenna module that this application embodiment provided can control antenna structure towards the one end radiation radio signal of basic station to can improve antenna structure receiving and dispatching radio signal's stability, and then improve electronic equipment receiving and dispatching radio signal's stability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 3 is an exploded schematic view of an electronic device according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 5 is another schematic structural diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 6 is an application scenario diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 7 is a schematic view of another application scenario of an antenna assembly provided in an embodiment of the present application.

Fig. 8 is a schematic structural diagram of an antenna carrier in the antenna assembly shown in fig. 4.

Fig. 9 is another schematic diagram of the antenna carrier in the antenna assembly shown in fig. 4.

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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

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

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides electronic equipment. The electronic device can be a smart phone, a tablet computer and the like. In some embodiments, referring to fig. 1 and 3, the electronic device 100 includes a display screen 10, a middle frame 20, a circuit board 30, a battery 40, and a rear cover 50.

The Display screen 10 is used as a front case of the electronic device 100, and forms a receiving space with the rear cover 50 for receiving other electronic components or functional components of the electronic device 100. meanwhile, the Display screen 10 forms a Display surface of the electronic device 100 for displaying information such as images and texts.the Display screen 10 may be a liquid Crystal Display (L acquired Crystal Display, L CD) or an Organic light Emitting Diode Display (Organic L light-Emitting Diode, O L ED) type Display screen.

In some embodiments, a glass cover plate may be disposed over the display screen 10. Wherein, the glass cover plate can cover the display screen 10 to protect the display screen 10 and prevent the display screen 10 from being scratched or damaged by water.

In some embodiments, as shown in FIG. 1, the display screen 10 may include a display area 11 and a non-display area 12. The display area 11 performs a display function of the display screen 10 for displaying information such as images and texts. The non-display area 12 does not display information. The non-display area 12 can be used for setting functional components such as a camera, a receiver, a touch electrode of a display screen, and the like. In some embodiments, the non-display area 12 may include at least one area located at upper and lower portions of the display area 11.

In some embodiments, as shown in FIG. 2, the display screen 10 may be a full-face screen. At this time, the display screen 10 may display information in a full screen, so that the electronic apparatus 100 has a large screen occupation ratio. The display screen 10 comprises only the display area 11 and no non-display area. At this time, functional components such as a camera and a proximity sensor in the electronic apparatus 100 may be hidden under the display screen 10, and the fingerprint recognition module of the electronic apparatus 100 may be disposed on the back of the electronic apparatus 100.

The middle frame 20 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 20 can be accommodated in the accommodating space formed by the display screen 10 and the rear cover 50. The middle frame 20 is used for providing a supporting function for the electronic components or functional modules in the electronic device 100, so as to mount the electronic components or functional modules in the electronic device together. For example, functional components such as a camera, a receiver, a circuit board, and a battery in the electronic apparatus may be mounted on the center frame 20 for fixation. In some embodiments, the material of the middle frame 20 may include metal or plastic.

The circuit board 30 is mounted inside the receiving space. For example, the circuit board 30 may be mounted on the middle frame 20 and received in the receiving space together with the middle frame 20. The circuit board 30 may be a motherboard of the electronic device 100. The circuit board 30 is provided with a grounding point to realize grounding of the circuit board 30. One, two or more of the functional components such as the motor, the microphone, the speaker, the receiver, the earphone interface, the universal serial bus interface (USB interface), the camera, the distance sensor, the ambient light sensor, the gyroscope, and the processor may be integrated on the circuit board 30. Meanwhile, the display screen 10 may be electrically connected to the circuit board 30.

In some embodiments, display control circuitry is disposed on the circuit board 30. The display control circuit outputs an electrical signal to the display screen 10 to control the display screen 10 to display information.

The battery 40 is mounted inside the receiving space. For example, the battery 40 may be mounted on the middle frame 20 and be received in the receiving space together with the middle frame 20. The battery 40 may be electrically connected to the circuit board 30 to enable the battery 40 to power the electronic device 100. The circuit board 30 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic components in the electronic device 100.

The rear cover 50 is used to form an outer contour of the electronic device 100. The rear cover 50 may be integrally formed. In the forming process of the rear cover 50, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed in the rear cover 50.

In some embodiments, the back cover 50 may be a metal back cover, such as a metal such as magnesium alloy, stainless steel, or the like. It should be noted that the material of the rear cover 50 in the embodiment of the present application is not limited thereto, and other manners may also be adopted, for example, the rear cover 50 may be a plastic rear cover, and for example, the rear cover 50 may be a ceramic rear cover. For another example, the rear cover 50 may include a plastic portion and a metal portion, and the rear cover 50 may be a rear cover structure in which metal and plastic are matched with each other. Specifically, the metal part may be formed first, for example, a magnesium alloy substrate is formed by injection molding, and then plastic is injected on the magnesium alloy substrate to form a plastic substrate, so as to form a complete rear cover structure.

In some embodiments, electronic device 100 also includes an antenna assembly. The antenna assembly is mounted inside the rear cover 50. The antenna assembly is used to transmit and/or receive wireless signals to enable communication between the electronic device 100 and a base station.

In the present embodiment, as shown in fig. 4, the antenna assembly 60 includes an antenna structure 61, a radio frequency module 62, and a switch assembly 63.

Wherein the antenna structure 61 is used for transmitting and/or receiving wireless signals. The antenna structure 61 may be an antenna radiator of the electronic device 100. The antenna structure 61 is provided with a feeding point 611, a first grounding point 612 and a second grounding point 613.

Wherein the feeding point 611 is arranged between the first grounding point 612 and the second grounding point 613. The feeding point 611 is used to enable the rf module 62 to feed electrical signals to the antenna structure 61. For example, the radio frequency module 62 may feed a voltage signal to the antenna structure 61 through the feeding point 611. The first grounding point 612 and the second grounding point 613 are both used for realizing grounding of the antenna structure 61, so that the antenna structure 61 forms a closed loop after an electrical signal is fed in. It should be noted that, during the use of the electronic device 100, only one of the first grounding point 612 and the second grounding point 613 is in the grounding state at the same time, and the other one is in the floating state.

The radio frequency module 62 is coupled to the antenna structure 61. In particular, the radio frequency module 62 is coupled to the feeding point 611 on the antenna structure 61. The radio frequency module 62 is configured to feed an electrical signal to the antenna structure 61 through the feeding point 611. In addition, the signals received by the antenna structure 61 may be transmitted to the rf module 62 for processing.

The switch assembly 63 is coupled to the antenna structure 61. In particular, the switch element 63 is coupled to the first and second grounding points 612, 613 on the antenna structure 61, respectively. The switch component 63 is used for switching the first grounding point 612 to ground or the second grounding point 613 to ground. Specifically, the electronic device 100 may acquire the position of the base station, and the switch assembly 63 is configured to switch the first grounding point 612 or the second grounding point 613 to be grounded according to the position of the base station.

In some embodiments, as shown in fig. 5, the antenna structure 61 includes a first end 61A and a second end 61B that are oppositely disposed. It is understood that the first end portion 61A and the second end portion 61B are disposed at two ends of the antenna structure 61. Wherein the first grounding point 612 is provided at the first end portion 61A and the second grounding point 613 is provided at the second end portion 61B. In some embodiments, the feeding point 611 may be arranged at the midpoint of the first 612 and second 613 ground points.

In some embodiments, as shown in fig. 5, the switch assembly 63 includes a first port 631, a second port 632, and a third port 633. Wherein the first port 631 is coupled to a first ground point 612 of the antenna structure 61. The second port 632 is coupled to a second ground point 613 of the antenna structure 61. The third port 633 is grounded. The third port 633 may be connected to either the first port 631 or the second port 632. The switch module 63 switches the first port 631 to connect with the third port 633 or switches the second port 632 to connect with the third port 633 according to the position of the base station.

In some embodiments, the switch assembly 63 comprises a single pole double throw switch.

It will be appreciated that when the third port 633 is coupled to the first port 631, the first ground point 612 of the antenna structure 61 is coupled to ground. At this time, the first ground point 612 is zero potential. Thus, when the feeding point 611 of the antenna structure 61 is fed with an electrical signal, the electrical signal radiates a wireless signal from the second end 61B of the antenna structure 61 to the outside.

When the third port 633 is connected to the second port 632, the second ground point 613 of the antenna structure 61 is grounded. At this time, the second ground point 613 is zero potential. Thus, when the feeding point 611 of the antenna structure 61 is fed with an electrical signal, the electrical signal radiates a wireless signal from the first end 61A of the antenna structure 61 to the outside.

The above coupling merely indicates a physical connection state between the electronic components, and does not indicate that the electronic components coupled to each other are in an electrically connected state. The above-mentioned connection indicates an electrical connection state between the electronic components, and the electronic components connected to each other can transmit an electrical signal.

In some embodiments, the electronic device 100 further comprises a processor. The processor may be disposed on a circuit board 30 of the electronic device 100. Wherein the processor is coupled to a switching component 63 in the antenna component 60. The processor is configured to obtain a position of the base station, and control the switch component 63 according to the obtained position of the base station, so that the switch component 63 switches the first grounding point 612 or the second grounding point 613 of the antenna structure 61 to ground.

The base station is connected with the electronic equipment. A Positioning System, such as a Global Positioning System (GPS), may be provided in the electronic device. The processor may acquire the location of the base station through a positioning system in the electronic device. In addition, the processor may acquire the location of the electronic device itself through a positioning system. The processor may then acquire the pose of the electronic device through sensors in the electronic device, such as a gyroscope.

The processor may determine the orientation of the base station relative to the electronic device according to the acquired position of the base station, the position of the electronic device, and the attitude of the electronic device.

Wherein, as shown in fig. 6, when the first grounding point 612 of the antenna structure 61 faces the base station, the processor controls the switch component 63 such that the switch component 63 switches to ground the second grounding point 613 of the antenna structure. At this time, the antenna structure 61 radiates a wireless signal to the outside through the first end portion 61A, that is, the end of the antenna structure 61 facing the base station radiates a wireless signal to the outside, so that a directional pattern of the signal radiated by the antenna structure 61 faces the base station.

As shown in fig. 7, when the second grounding point 613 of the antenna structure 61 faces the base station, the processor controls the switch element 63 such that the switch element 63 switches to ground the first grounding point 612 of the antenna structure 61. At this time, the antenna structure 61 radiates a wireless signal to the outside through the second end portion 61B, that is, the end of the antenna structure 61 facing the base station radiates a wireless signal to the outside, so that a directional pattern of the signal radiated by the antenna structure 61 faces the base station.

Therefore, the processor can control the antenna structure 61 to radiate the wireless signal towards one end of the base station, so that the stability of the antenna structure for receiving and transmitting the wireless signal can be improved, and the stability of the electronic device for receiving and transmitting the wireless signal can be improved.

With continued reference to fig. 4 and 5, in some embodiments, antenna assembly 60 further includes an antenna carrier 64. The antenna structure 61 is arranged on the antenna carrier 64. Thus, the antenna carrier 64 can provide a supporting function for the antenna structure 61, so that the antenna structure 61 can be stably installed inside the electronic device 100. In some embodiments, the antenna carrier 64 may be a bezel of the electronic device 100.

In some embodiments, referring to fig. 5, a third ground point 640 is provided on the antenna carrier 64. Wherein the third grounding point 640 may be electrically connected to a grounding point on a circuit board of the electronic device 100, thereby enabling grounding of the antenna carrier 64. The switch assembly 63 is further coupled to the third ground point 640 to enable grounding of the switch assembly 63. In particular, the third port 633 of the switch assembly 63 is coupled to the third ground point 640 to ground the third port 633 of the switch assembly 63.

In some embodiments, as shown in fig. 8, a metal sheet 641 is disposed on the antenna carrier 64. For example, the metal sheet 641 may be adhered to the antenna carrier 64, or the metal sheet 641 may be formed on the antenna carrier 64 by electroplating. The metal sheet 641 may be a metal sheet made of magnesium alloy, aluminum alloy, or the like. Wherein the antenna structure 61 includes the metal sheet 641 disposed on the antenna carrier 64.

In some embodiments, as shown in fig. 9, the antenna carrier 64 has a metal extension 642 formed thereon. For example, the metal extension 642 may be formed on the antenna carrier 64 by integral molding during the manufacturing process of the antenna carrier 64. The metal extension portion 642 may be made of magnesium alloy, aluminum alloy, or the like. Wherein the antenna structure 61 comprises the metal extension portion 642.

The antenna assembly and the electronic device provided by the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An antenna assembly, comprising:

the antenna structure is an antenna radiator, a feed point, a first grounding point and a second grounding point are arranged on the antenna structure, the feed point is arranged between the first grounding point and the second grounding point, and the first grounding point and the second grounding point are both used for realizing grounding of the antenna radiator so that the antenna radiator forms a closed loop after an electric signal is fed in;

a radio frequency module coupled with the feed point on the antenna structure;

a switch assembly coupled to the first and second grounding points on the antenna structure, respectively, the switch assembly configured to: and switching the first grounding point or the second grounding point to be grounded according to the position of the base station, the position of the electronic equipment and the orientation of the base station relative to the electronic equipment, wherein only one of the first grounding point and the second grounding point is in a grounding state at the same moment, and the other one of the first grounding point and the second grounding point is in a floating state.

2. The antenna assembly of claim 1, wherein the switching assembly includes a first port, a second port, and a third port, the first port coupled to the first ground point, the second port coupled to the second ground point, and the third port grounded.

3. The antenna assembly of claim 2, wherein the switch assembly switches the first port to the third port or switches the second port to the third port based on a position of a base station.

4. The antenna assembly of claim 1, wherein the antenna structure includes opposing first and second ends, the first ground point being disposed at the first end, the second ground point being disposed at the second end.

5. The antenna assembly of any one of claims 1 to 4, further comprising an antenna carrier on which the antenna structure is disposed.

6. The antenna assembly of claim 5, wherein a third ground point is disposed on the antenna carrier, the switch assembly further coupled to the third ground point.

7. The antenna assembly of claim 5, wherein the antenna structure comprises a metal sheet disposed on the antenna carrier.

8. The antenna assembly of claim 5, wherein the antenna carrier has a metal extension formed thereon, and wherein the antenna structure includes the metal extension.

9. An electronic device comprising a rear cover and an antenna assembly mounted within the rear cover, the antenna assembly being the antenna assembly of any one of claims 1 to 8.

10. The electronic device of claim 9, wherein the antenna assembly comprises an antenna structure and a switch assembly, the antenna structure coupled with the switch assembly, the electronic device further comprising a processor coupled with the switch assembly;

the processor is configured to: and determining the position of the base station relative to the electronic equipment according to the acquired position of the base station, the position of the electronic equipment and the attitude of the electronic equipment, and controlling the switch assembly according to the position of the base station relative to the electronic equipment, so that the switch assembly switches the first grounding point or the second grounding point of the antenna structure to be grounded.

11. The electronic device of claim 10, wherein the processor is configured to:

when the first grounding point of the antenna structure faces the base station, controlling the switch component to switch the switch component to be grounded to a second grounding point of the antenna structure;

when the second grounding point of the antenna structure faces the base station, the switch component is controlled to switch the first grounding point of the antenna structure to be grounded.