CN112103624B

CN112103624B - Antenna device and electronic apparatus

Info

Publication number: CN112103624B
Application number: CN202010974612.6A
Authority: CN
Inventors: 郑超
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2022-11-15
Anticipated expiration: 2040-09-16
Also published as: CN112103624A

Abstract

The embodiment of the application provides an antenna device and electronic equipment, the antenna device includes: a conductor structure including a body and a plurality of periodic structures arrayed on the body; the first feed source is electrically connected with the conductor structure and used for providing a first excitation signal, and the plurality of periodic structures are used for transmitting the first excitation signal and radiating millimeter wave signals outwards; and the second feed source is electrically connected with the conductor structure, the second feed source is used for providing a second excitation signal, and the conductor structure is used for transmitting the second excitation signal and radiating a 5G signal outwards. In the antenna device, millimeter wave signals can be radiated outwards through a plurality of periodic structures of the conductor structure, and meanwhile 5G signals can be radiated outwards through the conductor structure, so that the conductor structure can be used as a millimeter wave antenna and a 5G antenna simultaneously, sharing of the millimeter wave antenna and the 5G antenna is realized, and the number of antennas in electronic equipment can be reduced.

Description

Antenna device and electronic apparatus

Technical Field

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

Background

With the development of communication technology, electronic devices such as smart phones have more and more functions, and communication modes of the electronic devices are more diversified. For example, electronic devices may generally support millimeter wave communication and 5G (5 th generation mobile networks) communication, and therefore a millimeter wave antenna and a 5G antenna need to be respectively arranged on the electronic devices to implement corresponding communication functions.

Disclosure of Invention

The embodiment of the application provides an antenna device and electronic equipment, which can realize the sharing of a millimeter wave antenna and a 5G antenna, thereby reducing the number of antennas of the electronic equipment.

An embodiment of the present application provides an antenna apparatus, including:

a conductor structure comprising a body and a plurality of periodic structures arrayed on the body;

the first feed source is electrically connected with the conductor structure, the first feed source is used for providing a first excitation signal, and the plurality of periodic structures are used for transmitting the first excitation signal and radiating millimeter wave signals outwards;

and the second feed source is electrically connected with the conductor structure, the second feed source is used for providing a second excitation signal, and the conductor structure is used for transmitting the second excitation signal and radiating a 5G signal outwards.

The embodiment of the application further provides an electronic device, which comprises an antenna device, wherein the antenna device is the antenna device.

In the antenna device that this application embodiment provided, a plurality of periodic structures through conductor structure can outwards radiate millimeter wave signal, simultaneously conductor structure can outwards radiate 5G signal, consequently conductor structure both can regard as millimeter wave antenna, can regard as 5G antenna simultaneously again to realize millimeter wave antenna and 5G antenna's sharing, thereby can reduce the antenna quantity in the electronic equipment.

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 a first electronic device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a first antenna device according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a second electronic device according to an embodiment of the present application.

Fig. 4 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a second structure of an antenna apparatus according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a third structure of an antenna apparatus according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a fourth structure of an antenna apparatus according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a fifth antenna apparatus according to an 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. 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.

The embodiment of the application provides electronic equipment. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or other devices.

Referring to fig. 1, fig. 1 is a schematic view of a first structure of an electronic device 100 according to an embodiment of the present disclosure.

The electronic device 100 includes a display screen 10, a housing 20, a circuit board 30, and a battery 40.

The display screen 10 is disposed on the casing 20 to form a display surface of the electronic device 100, and is used for displaying images, texts, and other information. The Display screen 10 may include a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.

It will be appreciated that a cover plate may also be provided over the display screen 10 to protect the display screen 10 from scratching or water damage. The cover plate may be a transparent glass cover plate, so that a user can observe contents displayed on the display screen 10 through the cover plate. For example, the cover plate may be a glass cover plate of sapphire material.

The housing 20 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, the camera, the circuit board, and the vibration motor of the electronic device 100 may be disposed inside the housing 20. The housing 20 may include a metal middle frame and a metal battery cover.

The metal middle frame can be in a thin plate-shaped or sheet-shaped structure, and can also be in a hollow frame structure. The metal middle frame is used for providing a supporting function for the electronic devices or functional components in the electronic device 100 so as to mount the electronic devices or functional components of the electronic device 100 together. For example, the metal middle frame may be provided with a groove, a protrusion, a through hole, and the like, so as to facilitate mounting of an electronic device or a functional component of the electronic apparatus 100.

The metal battery cover is connected with the metal middle frame. For example, the metal battery cover may be attached to the metal center frame by an adhesive such as a double-sided tape to achieve connection with the metal center frame. The metal battery cover is used for sealing the electronic devices and the functional components of the electronic device 100 inside the electronic device 100 together with the metal middle frame and the display screen 10, so as to protect the electronic devices and the functional components of the electronic device 100. Wherein, the metal battery cover can be integrally formed. In the forming process of the metal battery cover, structures such as a rear camera mounting hole and the like can be formed on the metal battery cover.

A circuit board 30 is disposed inside the housing 20. For example, the circuit board 30 may be mounted on a metal middle frame of the case 20 to be fixed, and the circuit board 30 is sealed inside the electronic device by a metal battery cover. The circuit board 30 may be a main board 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, and a motor may also be integrated on the circuit board 30. Meanwhile, the display screen 10 may be electrically connected to the circuit board 30 to control the display of the display screen 10 by a processor on the circuit board 30.

The battery 40 is disposed inside the case 20. For example, the battery 40 may be mounted on a metal middle frame of the case 20 to be fixed, and the battery 40 is sealed inside the electronic device by a metal battery cover. Meanwhile, the battery 40 is electrically connected to the circuit board 30 to enable the battery 40 to supply power to 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 devices in the electronic apparatus 100.

The electronic device 100 is further provided with an antenna device 200. The antenna apparatus 200 is used to implement a wireless communication function of the electronic device 100, for example, the antenna apparatus 200 may be used to implement a millimeter wave communication function and a 5G (5 th generation mobile network) communication function.

Referring to fig. 2, fig. 2 is a schematic diagram of a first structure of an antenna apparatus 200 according to an embodiment of the present disclosure.

The antenna arrangement 200 comprises a conductor structure 21, a first feed 22 and a second feed 23.

In the description of the present application, it is to be understood that terms such as "first," "second," and the like are used solely for distinguishing between similar elements and not necessarily for indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The conductor structure 21 is a metal structure in the electronic device 100. The material of the conductor structure 21 may include, for example, a magnesium alloy, an aluminum alloy, and the like.

In some embodiments, referring to fig. 3 at the same time, fig. 3 is a schematic diagram of a second structure of the electronic device 100 according to an embodiment of the present disclosure.

The electronic device 100 further includes a metal bezel 20a. The metal frame 20a may be a frame of a metal middle frame of the electronic device 100, for example. Wherein the conductor structure 21 may be formed on the metal frame 20a. For example, the conductor structure 21 may be a part of the metal bezel 20a, such as may be a short side of the metal bezel 20a.

In some embodiments, referring to fig. 4 at the same time, fig. 4 is a schematic structural diagram of a third electronic device 100 provided in the embodiments of the present application.

The electronic device 100 includes a metal battery cover 20a. The metal battery cover 20a may be provided as a part of the case 20. Wherein the conductor structure 21 may be formed on the metal battery cover 20 b. For example, two parallel slits may be opened on the metal battery cover 20b, and the conductor structure 21 is disposed through the two slits.

With continued reference to fig. 2, the conductor structure 21 includes a body 211 and a plurality of periodic structures 212 arrayed on the body 211. The main body 211 may be a matrix of the conductor structure 21, and the plurality of periodic structures 212 are periodically formed on the main body 211, thereby forming an array. The periodic structures 212 may be, for example, protrusions, bumps, teeth, etc. For example, the plurality of periodic structures 212 may be machined on the main body 211 by a mechanical machining method such as cutting, milling, or the like, or the plurality of periodic structures 212 may be machined on the main body 211 by a chemical machining method such as etching or the like.

It should be noted that the plurality of periodic structures 212 are small in size, and the width and the height of each periodic structure 212 may be on the order of micrometers. Therefore, the plurality of periodic structures 212 may be understood as micro periodic structures.

Wherein, a groove 213 is formed between the plurality of periodic structures 212. The groove 213 may be filled with an insulating medium, such as plastic, to keep the surface of the conductor structure 21 flat. It should be noted that the grooves 213 may be understood that the plurality of periodic structures 212 are formed on the main body 211 together.

The first feed 22 is electrically connected to the conductor structure 21. The first feed 22 is configured to provide a first excitation signal, which may be an excitation signal corresponding to a wireless communication signal. In some embodiments, the first excitation signal may be an excitation signal corresponding to a millimeter-wave signal.

Thereby, the first feed 22 may feed the first excitation signal to the conductor structure 21. Since the size of each periodic structure 212 on the conductor structure 21 is in the millimeter level, which corresponds to millimeter waves, the plurality of periodic structures 212 may be used to transmit the first excitation signal and radiate millimeter wave signals outwards, so as to implement a millimeter wave communication function. The millimeter wave signal is a wireless signal with a wavelength of 1 to 10 millimeters.

In some embodiments, a distance d1 between corresponding portions of every two adjacent periodic structures 212 is smaller than a wavelength of the millimeter wave signal. For example, if the wavelength of the millimeter wave signal is 5mm (millimeter), the distance d1 is less than 5mm. Here, the distance d1 may be understood as a distance between centers of every two adjacent periodic structures 212, or a distance between adjacent sides of every two adjacent periodic structures 212, such as a distance between left sides or a distance between right sides.

It is understood that setting the distance d1 to be smaller than the wavelength of the millimeter wave signal may enable the plurality of periodic structures 212 to better radiate the millimeter wave signal outwards, so as to improve millimeter wave communication performance.

The second feed 23 is electrically connected to the conductor structure 21. The second feed 23 is configured to provide a second driving signal, where the second driving signal may also be a driving signal corresponding to a wireless communication signal. In some embodiments, the second excitation signal may be an excitation signal corresponding to a 5G signal.

The second feed 23 may thus feed the second excitation signal to the conductor structure 21. It can be understood that, because the overall size of the conductor structure 21 is long, the conductor structure 21 can be used for transmitting the second excitation signal and radiating a 5G signal outwards to realize a 5G communication function.

In some embodiments, the frequency range of the 5G signal is in the FR1 region, i.e., the frequency range of the 5G signal is 450MHz to 6GHz. Note that a wireless signal having a frequency range of 450MHz to 6GHz is also referred to as a Sub6G signal.

In the antenna apparatus 200 provided in the embodiment of the present application, the plurality of periodic structures 212 of the conductor structure 21 may radiate a millimeter wave signal outwards, and at the same time, the conductor structure 21 may radiate a 5G signal outwards, so that the conductor structure 21 may be used as both a millimeter wave antenna and a 5G antenna to implement sharing of the millimeter wave antenna and the 5G antenna, thereby reducing the number of antennas in the electronic device 100,

in some embodiments, referring to fig. 5, fig. 5 is a schematic diagram of a second structure of an antenna apparatus 200 according to an embodiment of the present application.

The antenna device 200 further comprises a ground system 24, the ground system 24 being used for returning to ground. The ground system 24 may be formed by a metal middle frame or a metal battery cover of the electronic device 100, for example. The conductor arrangement 21 is connected to the earth system 24 in order to realize the earthing of the conductor arrangement 21. Thus, when the plurality of periodic structures 212 transmit the first excitation signal or the conductor structure 21 transmits the second excitation signal, a current loop is formed. It is understood that the portion of the conductor structure 21 not connected to the ground system 24 may be spaced apart from the ground system 24.

In some embodiments, as shown in fig. 5, a plurality of periodic structures 212 on the conductor structure 21 may be formed on a side of the body 211 facing away from the ground system 24.

In some embodiments, the conductor structure 21 includes an end portion 210. The conductor structure 21 and the earth system 24 are connected to the end portion 210.

Wherein the conductor structure 21 further comprises a first feeding point 214 and a second feeding point 215. The first feeding point 214 and the second feeding point 215 are arranged spaced apart on the conductor structure 21. Wherein a distance d2 of the first feeding point 214 from the end portion 210 is smaller than a distance d3 of the second feeding point 215 from the end portion 210.

Wherein the first feed 22 is electrically connected to the first feed point 214. The first feed 22 feeds the first excitation signal to the conductor structure 21 through the first feeding point 214.

The second feed 23 is electrically connected to the second feeding point 215. The second feed 23 feeds the second excitation signal to the conductor structure 21 through the second feeding point 215.

In some embodiments, referring to fig. 6, fig. 6 is a schematic structural diagram of a third antenna device 200 according to an embodiment of the present disclosure.

The conductor structure 21 and the ground system 24 may also be connected to the middle of the conductor structure 21 instead of the end of the conductor structure 21, so as to facilitate the overall structural layout of the electronic device 100. It is understood that the first feeding point 214 and the second feeding point 215 may be respectively disposed at two sides of the connection portion of the conductor structure 21 and the ground system 24.

In some embodiments, referring to fig. 7, fig. 7 is a schematic diagram of a fourth structure of an antenna apparatus 200 according to an embodiment of the present disclosure.

Wherein, a plurality of periodic structures 212 on the conductor structure 21 can also be formed on the side of the main body 211 facing the ground system 24.

It is understood that, in other embodiments, the protruding directions of the plurality of periodic structures 212 on the conductor structure 21 may be perpendicular to the ground system 24.

In some embodiments, referring to fig. 8, fig. 8 is a schematic diagram of a fifth structure of an antenna apparatus 200 according to an embodiment of the present disclosure.

The antenna device 200 further comprises a first matching network M1 and a second matching network M2. It will be appreciated that the matching network may also be referred to as a matching circuit, a tuning network, a tuning circuit, etc.

The first matching network M1 is arranged between the second feed 23 and the conductor structure 21. The second feed 23 is electrically connected to the conductor structure 21 via the first matching network M1. The first matching network M1 is configured to match an impedance of the conductor structure 21 when transmitting the second excitation signal, so as to ensure 5G communication performance of the conductor structure 21 when transmitting the second excitation signal.

The first matching network M1 may include an inductor, a capacitor, and the like. For example, the first matching network M1 may include multiple matching paths, some of which may include inductors, some of which may include capacitors, and so on.

The second matching network M2 is electrically connected to the conductor structure 21, and the second matching network M2 is grounded. For example, the second matching network M2 may be connected to a ground point provided in the electronic device 100, or may be connected to the ground system 24, so as to implement grounding. The second matching network M2 may be configured to match an impedance of the conductor structure 21 when transmitting the second excitation signal, so as to improve 5G communication performance of the conductor structure 21 when transmitting the second excitation signal; the method and the device can also be used for matching the impedance of the plurality of periodic structures 212 when transmitting the first excitation signal, so as to ensure the millimeter wave communication performance of the plurality of periodic structures 212 when transmitting the first excitation signal.

The second matching network M2 may also include an inductor, a capacitor, and other devices. Wherein, the second matching network M2 may also include multi-path matching. In some embodiments, the second matching network M2 may include an inductor with a smaller inductance value, the 5G signal is tuned by the smaller inductor, and meanwhile, since the smaller inductor has a larger inductance to the millimeter wave signal, the isolation between the 5G signal and the millimeter wave signal may be improved, and mutual interference between the 5G signal and the millimeter wave signal may be reduced, so as to improve the 5G communication performance and the millimeter wave communication performance.

The antenna device and the electronic device provided in 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, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An antenna device, comprising:

the conductor structure comprises a main body and a plurality of periodic structures formed on the main body in an array mode, wherein the width and the height of each periodic structure are in the micrometer level;

2. The antenna device according to claim 1, wherein a distance between corresponding portions of every two adjacent periodic structures is smaller than a wavelength of the millimeter-wave signal.

3. The antenna device according to claim 1, wherein the frequency range of the 5G signal is 450MHz to 6GHz.

4. The antenna device according to any of claims 1 to 3, further comprising a ground system, said conductor structure being connected to said ground system.

5. The antenna device of claim 4, wherein:

the conductor structure and the ground system are connected to one end part of the conductor structure;

the conductor structure includes a first feed point and a second feed point, the first feed point being at a smaller distance from the end than the second feed point, the first feed being electrically connected to the first feed point, the second feed being electrically connected to the second feed point.

6. The antenna device according to claim 4, wherein the plurality of periodic structures are formed on a side of the body facing away from or toward the ground system.

7. The antenna device according to any one of claims 1 to 3, further comprising:

a first matching network through which the second feed is electrically connected with the conductor structure.

8. The antenna device of claim 4, further comprising:

a second matching network electrically connected with the conductor structure and grounded.

9. The antenna device according to any one of claims 1 to 3, wherein a groove is formed between the plurality of periodic structures, and the groove is filled with an insulating medium.

10. An electronic device, characterized in that it comprises an antenna device according to any one of claims 1 to 9.

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

a metal bezel, the conductor structure formed on the metal bezel.

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

a metal battery cover, the conductor structure being formed on the metal battery cover.