CN108321495B

CN108321495B - Antenna assembly, antenna device and electronic equipment

Info

Publication number: CN108321495B
Application number: CN201810060941.2A
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-01-22
Filing date: 2018-01-22
Publication date: 2020-05-19
Anticipated expiration: 2038-01-22
Also published as: CN108321495A

Abstract

The embodiment of the application provides an antenna assembly, an antenna device and electronic equipment, wherein the antenna assembly comprises a first radiator and a second radiator; the first radiator is provided with a grounding point, a first feeding point and a second feeding point, the first feeding point is used for feeding in a first electric signal, and the second feeding point is used for feeding in a second electric signal; a gap is arranged between the second radiator and the first radiator, and the second electric signal is coupled to the second radiator through the gap so as to realize the electromagnetic coupling of the second radiator and the first radiator. In the antenna assembly, the first radiator and the second radiator can be respectively used for transmitting wireless signals with different frequencies to the outside, and interference cannot be generated between the first radiator and the second radiator, so that the isolation between wireless signals of different frequency bands transmitted and received by the electronic equipment can be improved.

Description

Antenna assembly, antenna device and electronic equipment

Technical Field

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

Currently, when an antenna in an electronic device receives and transmits wireless signals of multiple frequency bands, the wireless signals of different frequency bands interfere with each other, which affects the communication stability of the electronic device.

Disclosure of Invention

The embodiment of the application provides an antenna assembly, an antenna device and electronic equipment, which can improve the isolation between wireless signals of different frequency bands transmitted and received by the electronic equipment.

The embodiment of the application provides an antenna assembly, which comprises a first radiator and a second radiator, wherein the first radiator and the second radiator are spaced;

the first radiator comprises a first end part and a second end part which are opposite, a grounding point, a first feeding point and a second feeding point are arranged on the first radiator, the grounding point is arranged on the first end part, the first feeding point is arranged between the first end part and the second end part, the first feeding point is used for feeding in a first electric signal, the second feeding point is arranged between the first end part and the second end part, and the second feeding point is used for feeding in a second electric signal;

the second radiator comprises a third end portion, a gap is formed between the third end portion and the second end portion of the first radiator, and the second electric signal is coupled to the second radiator through the gap so as to achieve electromagnetic coupling of the second radiator and the first radiator.

The embodiment of the application also provides an antenna device, which comprises a first signal source, a second signal source and an antenna assembly, wherein the antenna assembly is the antenna assembly;

the first signal source is used for generating a first electric signal, and the first signal source is electrically connected with a first feed point on a first radiating body of the antenna component;

the second signal source is used for generating a second electric signal, and the second signal source is electrically connected with a second feed point on the first radiating body of the antenna component.

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 embodiment of the application also provides electronic equipment comprising the antenna device.

The antenna module that this application embodiment provided includes first irradiator and second irradiator, first irradiator, second irradiator can be used for respectively to the wireless signal of different frequencies of external transmission, and first irradiator with can not produce the interference between the second irradiator to can improve the isolation between the different frequency channel wireless signal of electronic equipment receiving and dispatching.

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

Fig. 7 is a schematic structural diagram of an antenna device according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of an antenna device 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.

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.

Wherein the display screen 10 is mounted on the rear cover 50 to form a display surface of the electronic device 100. The display screen 10 serves as a front housing 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 apparatus 100 for displaying information such as images, texts, and the like. The Display screen 10 may be a Liquid Crystal Display (LCD) or an organic light-Emitting Diode (OLED) 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 or other electronic device.

In the present embodiment, as shown in fig. 4, the antenna assembly 60 includes a first radiator 61 and a second radiator 62. The first radiator 61 is spaced apart from the second radiator 62. A gap 63 is provided between the first radiator 61 and the second radiator 62.

The first radiator 61 includes opposite first and second ends 611 and 612. It can be understood that the first end 611 and the second end 612 are opposite to each other, that is, the first end 611 and the second end 612 are respectively located at two ends of the first radiator 61.

The first radiator 61 is provided with a grounding point 613, a first feeding point 614 and a second feeding point 615. The ground point 613 is disposed at the first end 611. The grounding point 613 is used for grounding the first radiator 61, so that the first radiator 61 forms a closed loop after an electrical signal is fed.

The first feeding point 614 is disposed between the first end 611 and the second end 612. The first feeding point 614 is used for feeding a first electrical signal. The first electrical signal may be a voltage signal or a current signal.

The second feeding point 615 is disposed between the first end 611 and the second end 612. The second feeding point 615 is used for feeding a second electrical signal. The second electrical signal may also be a voltage signal or a current signal.

When an electrical signal is fed into at least one of the first feeding point 614 and the second feeding point 615, the first radiator 61 may radiate a wireless signal outwards, so as to implement wireless communication between the electronic device 100 and a base station or other electronic devices.

The second radiator 62 includes a third end 621. The gap 63 between the first radiator 61 and the second radiator 62 is located between the second end 612 of the first radiator 61 and the third end 621 of the second radiator 62.

The second radiator 62 is grounded, so that the second radiator 62 forms a closed loop after an electrical signal is input.

The electrical signals fed to the first radiator 61 by the first feeding point 614 and the second feeding point 615 may be high-frequency alternating current signals. Since the gap 63 is formed between the first radiator 61 and the second radiator 62, that is, the first radiator 61 and the second radiator 62 are in close proximity, and the second radiator 62 is grounded to form a closed loop, the first radiator 61 and the second radiator 62 can form electromagnetic coupling. Specifically, the third end 621 of the second radiator 62 is electromagnetically coupled to the second end 612 of the first radiator 61.

Accordingly, the high frequency electric signal fed to the first radiator 61 may be transmitted to the second radiator 62 through electromagnetic coupling, and a wireless signal may be radiated to the outside through the second radiator 62.

It will be appreciated that the lower the frequency of the electrical signal, the weaker the ability to transmit through electromagnetic coupling; the higher the frequency of the electrical signal, the greater the ability to transmit through electromagnetic coupling. Therefore, of the electrical signals fed to the first radiator 61, a part of the electrical signals with lower frequencies can be transmitted to the outside through the first radiator 61, and a part of the electrical signals with higher frequencies can be transmitted to the second radiator 62 through electromagnetic coupling and transmitted to the outside through the second radiator 62. Therefore, the first radiator 61 and the second radiator 62 may be respectively configured to emit wireless signals with different frequencies to the outside, and no interference may be generated between the first radiator 61 and the second radiator 62, so that isolation between wireless signals of different frequency bands received and transmitted by the electronic device 100 may be improved, and stability of the electronic device in receiving and transmitting the wireless signals may be improved.

In some embodiments, the first feeding point 614 is farther from the second end 612 of the first radiator 61 than the second feeding point 615 is from the second end 612 of the first radiator 61. That is, the first feeding point 614 is disposed on the first radiator 61 farther from the second end 612, and the second feeding point 615 is disposed on the first radiator 61 closer to the second end 612.

Wherein the first electrical signal fed from the first feeding point 614 comprises a radio frequency signal in a first frequency range. The second electrical signal fed by the second feeding point 615 comprises a radio frequency signal of a second frequency range. And the lowest frequency in the second frequency range is greater than the highest frequency in the first frequency range.

Thus, the first electrical signal may be understood as a low frequency radio frequency signal relative to the second electrical signal. Whereas the second electrical signal may be understood as a high frequency radio frequency signal with respect to the first electrical signal.

It should be noted that the frequency of the wireless signal radiated from the radiator is related to the resonant length of the radiator. The resonant length of the radiator refers to a distance between a feed point of the electrical signal and a free end of the radiator. For the first radiator 61, when a first electrical signal fed from the first feeding point 614 radiates a wireless signal outwards, a resonant length is a distance between the first feeding point 614 and the second end portion 612. When the second electrical signal fed from the second feeding point 615 radiates a wireless signal outwards, a resonant length is a distance between the second feeding point 615 and the second end 612.

When the same electric signal is fed in, the longer the resonance length of the radiator is, the lower the frequency of the wireless signal radiated outwards by the radiator is; the shorter the resonant length of the radiator, the higher the frequency of the radio signal radiated outward by the radiator.

Therefore, when the first feeding point 614 is located at a greater distance from the second end 612 of the first radiator 61 than the second feeding point 615 is located at a greater distance from the second end 612 of the first radiator 61, that is, the resonant length of the electrical signal fed from the first feeding point 614 when the wireless signal is radiated outwards is greater than the resonant length of the electrical signal fed from the second feeding point 615 when the wireless signal is radiated outwards.

In addition, the first electrical signal fed from the first feeding point 614 is a low-frequency rf signal, and the second electrical signal fed from the second feeding point 615 is a high-frequency rf signal, so that the frequency of the first electrical signal when the first electrical signal radiates a wireless signal through the first radiator 61 is much lower than the frequency of the second electrical signal when the second electrical signal radiates a wireless signal through the first radiator 61. Therefore, the isolation between the wireless signal radiated outward by the first electrical signal and the wireless signal radiated outward by the second electrical signal can be further ensured, and the stability of the electronic device 100 for receiving and transmitting the wireless signals can be improved.

It should be noted that the radio frequency signals supported by the electronic device 100 can be divided into Low Band (LB), Medium Band (MB), and High Band (HB). Wherein LB comprises a frequency range of 700MHz to 960MHz, MB comprises a frequency range of 1710MHz to 2170MHz, and HB comprises a frequency range of 2300MHz to 2690 MHz.

In some embodiments, the first frequency range includes LBs. That is, the first frequency range includes 700MHz to 960 MHz. The second frequency range includes MBs and HBs. That is, the second frequency range includes 1710MHz to 2170MHz, 2300MHz to 2690 MHz.

Wherein the first electrical signal comprises a first frequency range that is substantially lower than a second frequency range comprised by the second electrical signal. It will be appreciated, therefore, that the ability of the second electrical signal to be transmitted by electromagnetic coupling is much higher than the ability of the first electrical signal to be transmitted by electromagnetic coupling, i.e., the impedance contribution of the antenna assembly 60 to the second electrical signal is much less than the impedance contribution to the first electrical signal. Thus, the second electrical signal may be coupled to the second radiator 62 through the gap 63 between the second radiator 62 and the first radiator 61, so as to achieve electromagnetic coupling between the second radiator 62 and the first radiator 61.

Accordingly, the first electric signal fed from the first feeding point 614 cannot be transmitted to the second radiator 62 due to the large impedance of the antenna assembly 60, and a radio signal is generated by radiating the first electric signal to the outside through the first radiator 61.

The second electric signal fed from the second feeding point 615 can be transmitted to the second radiator 62 due to the small impedance of the antenna assembly 60, and a radio signal is generated by radiating the second radiator 62.

The first electric signal and the second electric signal respectively generate wireless signals through outward radiation of different radiation bodies, so that the isolation between the wireless signals radiated outward by the first electric signal and the wireless signals radiated outward by the second electric signal can be improved.

In some embodiments, the antenna assembly 60 further includes an antenna carrier 64. The first radiator 61 and the second radiator 62 are respectively disposed on the antenna carrier 64. The material of the antenna carrier 64 may include metal or plastic.

In some embodiments, the antenna carrier 64 may be a bezel or a back cover in the electronic device 100.

In some embodiments, the material of the antenna carrier 64 includes metal. Wherein the antenna carrier 64 is grounded. For example, a ground point is provided on the circuit board 30 in the electronic device 100, and the antenna carrier 64 is connected to the ground point on the circuit board 30.

The grounding point 613 of the first radiator 61 is electrically connected to the antenna carrier, so as to realize grounding of the first radiator 61.

In some embodiments, as shown in fig. 5, a first metal sheet 641 and a second metal sheet 642 may be disposed on the antenna carrier 64. The first metal sheet 641 is spaced apart from the second metal sheet 642. The first radiator 61 may include the first metal sheet 641, and the second radiator 62 may include the second metal sheet 642. In this case, the first radiator 61 and the second radiator 62 are implemented by metal sheets disposed on the antenna carrier 64, respectively.

In some embodiments, as shown in fig. 6, the antenna carrier 64 is formed with a first metal extension 643 and a second metal extension 644. The first metal extension 643 is spaced from the second metal extension 644. A gap is formed between the first metal extension 643 and the second metal extension 644.

Wherein the first radiator 61 comprises the first metal extension 643. The second radiator 62 includes the second metal extension 644. In this case, the first radiator 61 and the second radiator 62 are respectively implemented by metal extension portions on the antenna carrier 64.

In some embodiments, the material of the first metal extension 643 and the second metal extension 644 both include a magnesium alloy. In this case, the first radiator 61 and the second radiator 62 are formed of a magnesium alloy, so that the performance of the first radiator 61 and the second radiator 62 in transmitting and receiving wireless signals can be improved.

In some embodiments, the electronic device 100 further comprises an antenna arrangement. The antenna device is used for transmitting and/or receiving wireless signals to enable communication between the electronic device 100 and a base station or other electronic devices. Wherein the antenna device comprises the antenna assembly 60 of any of the above embodiments.

In this embodiment, as shown in fig. 7, the antenna device 70 includes the antenna assembly 60 according to any one of the above embodiments, and further includes a first signal source 71 and a second signal source 72.

Wherein the first signal source 71 is configured to generate a first electrical signal. The first signal source 71 is electrically connected to a first feeding point 614 on the first radiator 61 of the antenna assembly 60. Thus, the first signal source 71 can feed the first electric signal to the first radiator 61 through the first feeding point 614.

The second signal source 72 is for generating a second electrical signal. The second signal source 72 is electrically connected to the second feeding point 615 on the first radiator 61 of the antenna element 60. Thus, the second signal source 72 can feed the second electrical signal to the first radiator 61 through the second feeding point 615.

In some embodiments, as shown in fig. 8, a first filter circuit 73 is disposed between the first signal source 71 and the first feeding point 614. The first filter circuit 73 allows radio frequency signals of a first frequency range to pass.

The electrical signal generated by the first signal source 71 may include other electrical signals, such as a clutter signal, in addition to the radio frequency signal of the first frequency range. The first filter circuit 73 can filter out other signals in the electrical signal generated by the first signal source 73, and only allow the radio frequency signals in the first frequency range to pass through.

In some embodiments, the first filtering circuit 73 comprises a low pass filter. The low pass filter allows radio frequency signals in the frequency range of 700MHz to 960MHz to pass. In some embodiments, the first filter circuit 73 may include at least one of a capacitor and an inductor. For example, the first filter circuit 73 may include a capacitor and an inductor connected in parallel.

In some embodiments, a second filtering circuit 74 is disposed between the second signal source 72 and the second feeding point 615. The second filter circuit 74 allows radio frequency signals of a second frequency range to pass.

The electrical signal generated by the second signal source 72 may include other electrical signals, such as a clutter signal, in addition to the rf signal in the second frequency range. The second filter circuit 74 may filter out other signals from the electrical signals generated by the second signal source 72, and only allow rf signals in the second frequency range to pass through.

In some embodiments, the second filtering circuit 74 comprises a high pass filter. The high-pass filter allows radio-frequency signals with the frequency ranges of 1710MHz to 2170MHz and 2300MHz to 2690MHz to pass through. In some embodiments, the second filter circuit 74 may include at least one of a capacitor and an inductor. For example, the second filter circuit 74 may include a capacitor and an inductor in parallel.

It can be understood that, after the first filter circuit 73 and the second filter circuit 74 are added to the antenna device 70, since the first filter circuit 73 and the second filter circuit 74 allow radio frequency signals in different frequency ranges to pass through respectively, the isolation between the radio signal radiated outward by the first electrical signal and the radio signal radiated outward by the second electrical signal can be significantly improved, and the stability of the electronic device 100 for receiving and transmitting the radio signal is improved.

In some embodiments, as shown in fig. 8, the first radiator 61 of the antenna assembly 60 is further provided with an electrical connection point 616. The electrical connection point 616 is located between the first feeding point 614 and the second feeding point 615. The electrical connection points 616 are used for electrically connecting with other electronic components.

The antenna device 70 further comprises a frequency tuning element 75. The frequency tuning element 75 is connected to an electrical connection point 616 on the first radiator 61 of the antenna assembly 60. Further, the frequency modulation element 75 is grounded. The frequency modulation element 75 is configured to adjust a frequency of the wireless signal radiated outward by the first radiator 61.

In some embodiments, the frequency tuning element 75 comprises at least one of a capacitor and an inductor. For example, the frequency modulation element 75 may be a capacitor or an inductor. The frequency modulation element 75 may also be a capacitor and an inductor connected in parallel or in series.

It is understood that the electronic device 100 may further include a WiFi (Wireless-Fidelity) antenna, a GPS (global positioning System) antenna, a bluetooth antenna, and the like, which are not described herein.

The antenna assembly, the antenna device 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 a first radiator and a second radiator, the first radiator spaced from the second radiator;

the first radiator comprises a first end part and a second end part which are opposite, and the first radiator is a continuous uninterrupted radiator; the first radiator is provided with a grounding point, a first feeding point and a second feeding point, the grounding point is arranged at the first end part, the first feeding point is arranged between the first end part and the second end part, the first feeding point is used for feeding in a first electric signal, the second feeding point is arranged between the first feeding point and the second end part, and the distance between the first feeding point and the second end part is greater than that between the second feeding point and the second end part; the second feeding point is used for feeding a second electric signal;

the second radiator comprises a third end portion, a gap is formed between the third end portion and the second end portion of the first radiator, the second electric signal is coupled to the second radiator through the gap, electromagnetic coupling of the second radiator and the first radiator is achieved, and wireless signals are radiated to the outside through the second radiator.

2. The antenna assembly of claim 1, wherein the first electrical signal comprises radio frequency signals of a first frequency range, and the second electrical signal comprises radio frequency signals of a second frequency range, a lowest frequency of the second frequency range being greater than a highest frequency of the first frequency range.

3. The antenna assembly of claim 2, wherein the first frequency range comprises 700MHz to 960MHz, and the second frequency range comprises 1710MHz to 2170MHz, 2300MHz to 2690 MHz.

4. The antenna assembly of any one of claims 1 to 3, further comprising an antenna carrier, the first radiator and the second radiator each being disposed on the antenna carrier.

5. The antenna assembly of claim 4, wherein the antenna carrier is grounded, and wherein the ground of the first radiator is electrically connected to the antenna carrier.

6. The antenna assembly of claim 4, wherein the first radiator comprises a first metal sheet disposed on the antenna carrier and the second radiator comprises a second metal sheet disposed on the antenna carrier.

7. The antenna assembly of claim 4, wherein the antenna carrier has formed thereon a first metal extension and a second metal extension, the first metal extension being spaced apart from the second metal extension;

the first radiator includes the first metal extension portion, and the second radiator includes the second metal extension portion.

8. The antenna assembly of claim 7, wherein the first and second metal extensions are each made of a magnesium alloy.

9. An antenna device comprising a first signal source, a second signal source and an antenna assembly according to any one of claims 1 to 8;

10. The antenna device according to claim 9, characterized in that a first filter circuit is arranged between the first signal source and the first feeding point, the first filter circuit allowing radio frequency signals of a first frequency range to pass.

11. The antenna device according to claim 10, wherein the first filter circuit comprises a low pass filter.

12. The antenna device according to claim 9, characterized in that a second filter circuit is arranged between the second signal source and the second feeding point, the second filter circuit allowing radio frequency signals of a second frequency range to pass.

13. The antenna device according to claim 12, wherein the second filter circuit comprises a high pass filter.

14. The antenna device according to any of claims 9 to 13, wherein an electrical connection point is further provided on the first radiator of the antenna assembly, the electrical connection point being located between the first feeding point and the second feeding point;

the antenna device further comprises a frequency modulation element, and the frequency modulation element is connected with the electric connection point on the first radiator of the antenna component.

15. The antenna device of claim 14, wherein the frequency tuning element comprises at least one of a capacitor and an inductor.

16. 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.

17. An electronic device, characterized in that it comprises an antenna device according to any of claims 9 to 15.