CN117728171A - Electronic equipment - Google Patents

Abstract

The application provides electronic equipment, wherein a first radiator comprises a first free end, a first grounding end and a first feed part; the second radiator is positioned at one side of the first free end, which is away from the first grounding end; the decoupling piece is arranged between the first radiator and the second radiator, the first end of the decoupling piece and the first free end are arranged at intervals to form a first coupling gap, the second end extends along the direction away from the first radiator and is arranged at intervals to form a second coupling gap with the second radiator, and at least one of the first end and the second end is grounded; the first feed source is used for exciting the first radiator to generate a first resonance mode of a first frequency band, and the excitation decoupling piece is capacitively coupled with the first radiator through the first coupling gap to generate a second resonance mode of a second frequency band, and the decoupling piece is used for inhibiting an electric field generated by the first radiator from being coupled to the second radiator. Based on the above, the decoupling piece can play a role in coupling inhibition, and interference of the second radiator on the first radiator can be reduced.

Description

Electronic equipment

Technical Field

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

Background

With the development of communication technology, electronic devices such as smart phones have more and more functions, communication modes of the electronic devices have more and more diversified, and antenna radiators arranged inside the electronic devices have more and more.

However, due to the limitation of the miniaturization design of the electronic device, the interference between two adjacent antenna radiators is large, and the antenna performance of the electronic device is poor.

Disclosure of Invention

The application provides an electronic device, wherein interference between two adjacent radiators of the electronic device is small.

The application provides an electronic device, comprising:

the first radiator comprises a first free end, a first grounding end and a first power feeding part, wherein the first power feeding part is arranged at the first free end or between the first free end and the first grounding end, and the first grounding end is grounded;

the second radiator is positioned at one side of the first free end away from the first grounding end;

the decoupling piece is arranged between the first radiator and the second radiator, the decoupling piece comprises a first end and a second end, the first end and the first free end are arranged at intervals to form a first coupling gap, the second end and the second radiator are arranged at intervals to form a second coupling gap, and at least one of the first end and the second end is grounded; and

The first feed source is electrically connected to the first feed portion and is used for exciting the first radiator to generate a first resonance mode of a first frequency band and exciting the decoupling piece to be capacitively coupled with the first radiator through the first coupling gap to generate a second resonance mode of a second frequency band; wherein,

The decoupling element is used for inhibiting an electric field generated by the first radiator from being coupled to the second radiator.

The electronic equipment of this application, the decoupling piece is located between second radiator and the first radiator, the decoupling piece can change the electric field distribution of first radiator and second radiator, the decoupling piece can with first radiator capacitive coupling and restrain the electric field coupling that first radiator produced to the second radiator, the decoupling piece can play the effect of coupling suppression, can reduce the interference of second radiator to first radiator, improve the isolation between first radiator and the second radiator, and then improve the radiation performance of first radiator.

And when the second radiator and the first radiator form an opening-to-opening radiation structure, the decoupling piece can reduce interference between a first antenna formed by the first feed source and the first radiator and a second antenna formed by the second feed source and the second radiator, and can realize decoupling of the first antenna and the second antenna.

Drawings

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

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

Fig. 2 is a schematic diagram of a second structure of an electronic device according to an embodiment of the present application.

Fig. 3 is a schematic diagram of decoupling when the electronic device shown in fig. 2 is not provided with a decoupling member.

Fig. 4 is a schematic diagram of a current of the electronic device shown in fig. 3.

Fig. 5 is a schematic diagram of an S-parameter curve of the electronic device shown in fig. 3.

Fig. 6 is a schematic diagram of an antenna efficiency curve of the electronic device shown in fig. 3.

Fig. 7 is a schematic diagram illustrating electric field distribution comparison between the electronic device shown in fig. 2 and the electronic device shown in fig. 3.

Fig. 8 is a schematic diagram of a third structure of an electronic device according to an embodiment of the present application.

Fig. 9 is a schematic diagram of a current distribution of the electronic device shown in fig. 8.

Fig. 10 is a schematic diagram of a fourth structure of an electronic device according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a current distribution of the electronic device shown in fig. 10.

Fig. 12 is a schematic diagram of an S-parameter curve of the electronic device shown in fig. 10.

Fig. 13 is a schematic diagram of an antenna efficiency curve of the electronic device shown in fig. 10.

Fig. 14 is a schematic diagram showing the comparison of the isolation between the electronic device shown in fig. 3 and the electronic device shown in fig. 10.

Fig. 15 is a schematic view of a fifth structure of an electronic device according to an embodiment of the present application.

Fig. 16 is a schematic diagram of a current distribution of the electronic device shown in fig. 15.

Fig. 17 is a schematic view of a sixth structure of an electronic device according to an embodiment of the present application.

Fig. 18 is a schematic diagram of a current distribution of the electronic device shown in fig. 17.

Fig. 19 is a schematic diagram of current distribution when the second feed source of the electronic device provided in the embodiment of the present application works.

Fig. 20 is a schematic diagram comparing electric field distribution of a second feed source of an electronic device according to an embodiment of the present application when the second feed source works in different scenes.

Fig. 21 is another schematic diagram of current distribution when the second feed source of the electronic device provided in the embodiment of the present application works.

Fig. 22 is a schematic view of a seventh structure of an electronic device according to an embodiment of the present application.

Fig. 23 is a schematic diagram showing electric field distribution of the electronic device shown in fig. 22 in different scenarios.

Fig. 24 is a schematic diagram of S-parameter curves of the electronic device shown in fig. 22 in different scenarios.

Fig. 25 is a schematic diagram of an antenna efficiency curve of the electronic device shown in fig. 22 in different scenarios.

Fig. 26 is a schematic view of an eighth structure of an electronic device according to an embodiment of the present application.

Fig. 27 is a schematic diagram of a ninth structure of an electronic device according to an embodiment of the present application.

Fig. 28 is a schematic view of a tenth structure of an electronic 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 fig. 1 to 28 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides an electronic device 10, where the electronic device 10 may be a smart phone, a tablet computer, or other devices, and may also be a game device, an augmented reality (Augmented Reality, abbreviated as AR) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or the like. Referring to fig. 1, fig. 1 is a schematic diagram of a first structure of an electronic device 10 according to an embodiment of the disclosure. The electronic device 10 includes a first radiator 110, a second radiator 120, a decoupler 130, and a first feed 140.

The first radiator 110 includes a first free end 111, a first grounding end 112, and a first feeding portion 113, where the first feeding portion 113 is disposed at the first free end 111, or the first feeding portion 113 is disposed between the first free end 111 and the first grounding end 112, and the first grounding end 112 is electrically connected to the ground plane 150 to implement grounding. The second radiator 120 is located at a side of the first free end 111 facing away from the first grounding end 112, the decoupling member 130 is located between the first radiator 110 and the second radiator 120, the decoupling member 130 includes a first end 131 and a second end 132, the first end 131 is spaced from the first free end 111 of the first radiator 110 to form a first coupling gap G1, the second end 132 extends along a direction facing away from the first radiator 110 and is spaced from the second radiator 120 to form a second coupling gap G2, and at least one end of the first end 131 and the second end 132 of the second radiator 120 is grounded. The first feed source 140 is electrically connected to the first feeding portion 113 of the first radiator 110, the first feed source 140 can provide an excitation signal, the first feed source 140 can excite the first radiator 110 to generate a first resonant mode of a first frequency band, and excite the decoupling element 130 to capacitively couple with the first radiator 110 through the first coupling gap G1 and generate a second resonant mode of a second frequency band, and the decoupling element 130 can inhibit an electric field generated by the first radiator 110 from coupling to the second radiator 120, so as to avoid interference of the second radiator 120 on the first radiator 110.

It can be understood that the decoupling element 130 is a conductor structure that can be capacitively coupled to the first radiator 110 and grounded, and the capacitive coupling refers to that when an electric field is generated between two radiators, a signal on one radiator can be transmitted to the other radiator through the electric field, so that the two radiators can also realize electric signal conduction in a state of not directly contacting or not directly connecting. The decoupling element 130 may be, but not limited to, a grounded metal branch, and after the decoupling element 130 is capacitively coupled to the first radiator 110, a binding effect may be generated on an electric field formed by the first radiator 110, so as to inhibit the electric field generated by the first radiator 110 from being coupled to the second radiator 120, and for the second radiator 120, the decoupling element 130 may play a role in coupling inhibition.

It will be appreciated that under the excitation of the first feed 140, the decoupling element 130 may cause the electric field generated by the first radiator 110 to be suppressed to the side of the second coupling gap G2 facing away from the second radiator 120. For example, in fig. 1, an electric field generated by the first radiator 110 may be bound to the left side of the second radiator 120, and the electric field generated by the first radiator 110 is not easily coupled to the second radiator 120.

It is understood that the second radiator 120 may support the first frequency band, such that the second radiator 120 may interfere with the first radiator 110 when the decoupling member 130 is not provided. The second radiator 120 may be used as an auxiliary radiating branch of other main radiating branches, so that the second radiator 120 supports the first frequency band under the action of the other main radiating branches. Of course, referring to fig. 2, fig. 2 is a schematic diagram of a second structure of the electronic device 10 according to the embodiment of the present application. The electronic device 10 further includes a second feed 170 electrically connected to the second radiator 120, the second feed 170 being operable to provide an excitation signal, the second radiator 120 being operable to generate a third resonant mode supporting the first frequency band upon excitation of the second feed 170.

It will be appreciated that the second radiator 120 comprises a third end 121, a fourth end 122 and a second feeding portion 123, the third end 121 being spaced apart from the second end 132 to form a second coupling gap G2, the fourth end 122 extending in a direction away from the first radiator 110 and the decoupling member 130, the second feeding portion 123 being arranged between the third end 121 and the fourth end 122. The second radiator 120 may further include a grounding portion 124, and the grounding portion 124 may be disposed at the third end 121, the fourth end 122, or between the third end 121 and the fourth end 122 of the second radiator 120. Of course, the second radiator 120 may not be electrically connected to the ground plane 150. The second feed source 170 is electrically connected to the second feed portion 123, and the second feed source 170 can provide an excitation signal to excite the second radiator 120 to support the signal of the first frequency band.

Referring to fig. 3 to 6, fig. 3 is a decoupling schematic diagram of the electronic device 10 shown in fig. 2 without the decoupling member 130, fig. 4 is a current schematic diagram of the electronic device 10 shown in fig. 3, fig. 5 is an S-parameter curve schematic diagram of the electronic device 10 shown in fig. 3, and fig. 6 is an antenna efficiency curve schematic diagram of the electronic device 10 shown in fig. 3. When the electronic device 10 does not include the decoupling element 130, as shown in fig. 3, the grounding portion 124 of the second radiator 120 may be disposed at the fourth end 122, where the first grounding end 112 of the first radiator 110 and the fourth end 122 of the second radiator 120 that are grounded are far away from each other, the first free end 111 of the first radiator 110 is disposed opposite to the third end 121 of the second radiator 120, the first radiator 110 and the second radiator 120 form an end-to-end radiating structure, and when the first antenna formed by the first radiator 110 and the first feed 140 and the second antenna formed by the second radiator 120 and the second feed 170 both support signals in the same frequency first frequency band, as shown in fig. 4, the first feed 140 may excite the first radiator 110 to generate the first resonant current I11 flowing from the first grounding end 112 to the first free end 111, and the second feed 170 may excite the second radiator 120 to generate the second resonant current I21 flowing from the fourth end 122 to the third end 121 in an alternating half-wave period. It should be noted that the resonant current is periodic, and the first resonant current I11 and the second resonant current I21 may have a flow pattern opposite to that of fig. 4 in the next ac half-wave period. As shown in fig. 5, the curve L1 is an S-parameter curve (S11 curve) when the first antenna works, the curve L2 is an S-parameter curve (S22 curve) when the second antenna works, the curve L3 is a forward transmission coefficient curve (S21 curve) of the first antenna, the curve L4 is a reverse transmission coefficient curve (S12 curve) of the second antenna, the curves L3 and L4 may be isolation curves of the first antenna and the second antenna, as can be seen from fig. 5, the isolation of the first radiator 110 and the second radiator 120 is only-6 dB, and the isolation of the two is poor. As shown in fig. 6, the curve L5 and the curve L6 are the radiation efficiency curve and the system efficiency curve of the first radiator 110 when the first feed source 140 operates, and the curve L7 and the curve L8 are the radiation efficiency curve and the system efficiency curve of the second radiator 120 when the second feed source 170 operates, respectively, and as can be seen from fig. 6, the radiation efficiency performance of the first antenna and the second antenna is poor due to the large interference of the first antenna and the second antenna.

When the electronic device 10 is provided with the decoupling element 130 and the decoupling element 130 is located between the first radiator 110 and the second radiator 120, the decoupling element 130 can generate a binding effect on an electric field formed by the first radiator 110, so as to inhibit the electric field generated by the first radiator 110 from coupling to the second radiator 120, and the second radiator 120 is not easy to capacitively couple with the first radiator 110 to affect the performance of the first radiator 110, so that the second radiator 120 can be prevented from interfering with the first radiator 110. For example, referring to fig. 7, fig. 7 is a schematic diagram showing a comparison of electric field distribution of the electronic device 10 shown in fig. 2 and electric field distribution of the electronic device 10 shown in fig. 3, and fig. 7 (a) is a diagram showing an electric field distribution of the first antenna when the electronic device 10 is not provided with the decoupling element 130, at this time, the electric field generated by the first antenna may be continuously coupled to the second radiator 120, so that the second radiator 120 interferes with radiation of the first antenna. In contrast, fig. 7 (b) is a diagram showing electric fields when the first antenna works when the electronic device 10 is provided with the decoupling element 130, and as can be seen from the diagram (b), the electric field generated by the first antenna can be restrained at one side of the second coupling gap G2 away from the second radiator 120, the electric field generated by the first antenna can be concentrated on the decoupling element 130 and is rarely coupled to the second radiator 120, so that the decoupling element 130 can restrain the electric field generated by the first radiator 110 from being coupled to the second radiator 120, and the decoupling element 130 can reduce the interference of the second radiator 120 on the first radiator 110.

It should be noted that, the decoupling effect of the decoupling element 130 is described above only by taking the formation of the port-to-port radiating structure by the first radiator 110 and the second radiator 120 as an example, when the first radiator 110 and the second radiator 120 are other structures, for example, when the second radiator 120 is not grounded such that the second radiator 120 is a suspended branch, or when the grounding portion 124 of the second radiator 120 is located between the third end 121 and the fourth end 122 such that the second radiator 120 may form a T-shaped antenna, or when the grounding portion 124 of the second radiator 120 is located at the third end 121 such that the first radiator 110 and the second radiator 120 are in a homodromous radiating structure, the decoupling element 130 may still have an electric field suppression performance to reduce the interference of the second radiator 120 on the first radiator 110.

In the electronic device 10 of the embodiment of the present application, the decoupling element 130 is located between the second radiator 120 and the first radiator 110, the decoupling element 130 can change the electric field distribution of the first radiator 110 and the second radiator 120, the decoupling element 130 can capacitively couple with the first radiator 110 and inhibit the electric field generated by the first radiator 110 from coupling to the second radiator 120, and for the second radiator 120, the decoupling element 130 can play a role in coupling inhibition, so that the interference of the second radiator 120 on the first radiator 110 can be reduced, the isolation between the first radiator 110 and the second radiator 120 can be improved, and the radiation performance of the first radiator 110 can be further improved. And, when the second radiator 120 and the first radiator 110 form an opening-to-opening radiating structure, the decoupling member 130 may reduce interference between the first antenna formed by the first feed 140 and the first radiator 110 and the second antenna formed by the second feed 170 and the second radiator 120, and may implement decoupling of the first antenna and the second antenna.

When the second end 132 of the decoupling member 130 is grounded or the second end 132 and the first end 131 are grounded at the same time, the resonant current formed on the first radiator 110 may flow in the same direction as the resonant current formed on the decoupling member 130 when excited by the first feed 140. At this time, the decoupling member 130 can inhibit the electric field generated by the first radiator 110 from being coupled to the second radiator 120, so as to reduce the interference of the second radiator 120 on the first radiator 110.

For example, please refer to fig. 8 and fig. 9, fig. 8 is a schematic diagram of a third structure of the electronic device 10 according to the embodiment of the present application, and fig. 9 is a schematic diagram of a current distribution of the electronic device 10 shown in fig. 8. As shown in fig. 8, the first end 131 of the decoupling member 130 may be a free end, the second end 132 may be electrically connected to the ground plane 150 to achieve grounding, at this time, the second end 132 of the decoupling member 130 and the first ground end 112 of the first radiator 110 are far away from each other, the free end-first end 131 of the decoupling member 130 and the first free end 111 of the first radiator 110 are close to each other, the decoupling member 130 and the first radiator 110 may form an end-to-end radiation structure, the decoupling member 130 and the first radiator 110 may be a reverse branch, the first feed source 140 may excite the first radiator 110 to generate a first resonant mode and may excite the decoupling member 130 to generate a second resonant mode, the first resonant mode and the second resonant mode may be a quarter-wavelength resonant mode, as shown in fig. 9, the first resonant mode may excite the first radiator 110 to generate a resonant current I12 flowing from the first ground end 112 to the first free end 111, the second resonant mode may excite the decoupling member 130 to generate a resonant current I12 flowing from the first end 131 to the first radiator 110, the second resonant mode may excite the decoupling member 130 to generate an electric field I to the first resonant current I13 flowing from the first end 132 to the decoupling member 130 may be distributed to the first resonant mode, and the first resonant mode may be distributed to the decoupling member 130 may be opposite to the first resonant mode 130, as shown in fig. 9. In another alternating half-wave period, the resonant current I12 may flow from the first free end 111 to the first ground end 112, and the resonant current I13 may flow from the second end 132 to the third resonant current at the first end 131.

It should be noted that, as shown in fig. 8 and 9, the electronic device 10 may further include a matching circuit, for example, a second matching circuit 183, and the second end 132 of the decoupling element 130 may be electrically connected to one end of the second matching circuit 183, and the other end of the second matching circuit 183 is electrically connected to the ground plane 150 to implement grounding. The second matching circuit 183 may include an indefinite number of capacitors, inductors, resistors, and the like. Of course, in other embodiments, the second end 132 of the decoupling member 130 may also be directly physically grounded, for example, the second end 132 may be grounded by, but not limited to, a grounding spring, a grounding screw, or the like. The specific manner in which the second end 132 is grounded is not limited in this embodiment.

In the electronic device 10 of the embodiment, the first end 131 of the decoupling element 130 is a free end, the second end 132 is grounded, the decoupling element 130 and the first radiator 110 can form a radiation mode of reverse branch current, the decoupling element 130 can bind an electric field generated by the first radiator 110 at the second end 132 and inhibit excitation of the electric field to the second radiator 120, the electric field generated by the first radiator 110 is mainly on the first radiator 110 and the decoupling element 130, and little electric field is coupled to the second radiator 120, so that the decoupling element 130 can play a role of coupling inhibition for the second radiator 120, and interference of the second radiator 120 to the first radiator 110 can be reduced.

Referring to fig. 10 and 11, fig. 10 is a schematic diagram of a fourth structure of the electronic device 10 according to the embodiment of the present application, and fig. 11 is a schematic diagram of a current distribution of the electronic device 10 shown in fig. 10. A first ground return path 101 is formed between the first end 131 of the decoupling member 130 and the ground plane 150, and a second ground return path 102 is formed between the second end 132 and the ground plane 150, wherein the impedance value of the first ground return path 101 is greater than the impedance value of the second ground return path 102. Upon excitation by the first feed 140, the first radiator 110 may generate a first resonant mode of a quarter wavelength mode, and the decoupler 130 may generate a second resonant mode of a ring mode. As shown in fig. 11, during an ac half-wave period, the first resonant mode excites the first radiator 110 to generate a resonant current I14 flowing from the first ground terminal 112 to the first free terminal 111, the second resonant mode generates a resonant current I15 flowing from the ground plane 150 to the first terminal 131 and to the second terminal 132 and back to ground, and the second resonant mode is a ring mode generated by electric field coupling excitation. Of course, during the next ac half-wave period, the resonant current I14 may flow from the first free end 111 to the first ground end 112, and the resonant current I15 may flow from the ground plane 150 to the second end 132, and to the first end 131 and back to ground.

Referring to fig. 12 and 13 in combination with the current distribution, fig. 12 is a schematic diagram of an S-parameter curve of the electronic device 10 shown in fig. 10, and fig. 13 is a schematic diagram of an antenna efficiency curve of the electronic device 10 shown in fig. 10. Fig. 12 is a graph L9 showing an S-parameter curve of the first antenna, wherein a region a corresponds to a first resonant mode and a region B corresponds to a second resonant mode; the curve L10 is an S-parameter curve of the second antenna, the curve L11 is an isolation curve of the first antenna and the second antenna, and as can be seen from fig. 12, the decoupling element 130 is provided and the decoupling element 130 can be additionally excited to generate a second resonant mode of a loop mode, and at this time, the isolation of the first antenna and the second antenna can be about-9 dB. As shown in fig. 13, curves L12 and L13 in fig. 13 are a radiation efficiency curve and a system efficiency curve of the first antenna, respectively, and curves L14 and L15 are a radiation efficiency curve and a system efficiency curve of the second antenna, respectively. As can be seen from fig. 13, the first antenna and the second antenna have better antenna efficiency under the action of the decoupling member 130. In addition, referring to fig. 14, fig. 14 is a schematic diagram showing a comparison between the isolation between the electronic device 10 shown in fig. 3 and the electronic device 10 shown in fig. 10, a curve L16 in fig. 14 is an isolation curve of the electronic device 10 shown in fig. 3, and a curve L17 is an isolation curve of the electronic device 10 shown in fig. 10, and compared with the scheme of fig. 3 without the decoupling element 130, the scheme of fig. 10 with the decoupling element 130 has an obvious improvement of the isolation within the whole frequency band of the first wireless signal, which can be improved by at most about 10dB, so that the decoupling element 130 of the present application has better decoupling performance.

It is understood that, as shown in fig. 10, the electronic device 10 may further include a metal conductor 181 and a first matching circuit 182, wherein one end of the first matching circuit 182 is electrically connected to the first end 131 of the decoupling member 130, the other end of the first matching circuit 182 is electrically connected to the ground plane 150, and the first end 131 forms a first ground return path 101 between the first matching circuit 182 and the ground plane 150. One end of the metal conductor 181 is connected to the second end 132 of the decoupling element 130, and the other end is connected to the ground plane 150, and the second end 132 forms the second ground return path 102 with the ground plane 150 through the metal conductor 181. The first matching circuit 182 may include, but is not limited to, a capacitor, an inductor, and the like, and the metal conductor 181 may include, but is not limited to, a metal spring, a metal screw, and the like. At this time, under the excitation of the first feed 140, the decoupling element 130 more easily excites the second resonant mode of the ring mode, which more easily supports the radio signal with the higher frequency.

It is understood that the center frequency of the second frequency band supported by the second resonant mode may be greater than the center frequency of the first frequency band supported by the first resonant mode. The first frequency band and the second frequency band may be two sub-frequency bands within the same frequency band range, for example, the first frequency band may be a low frequency band of a B28 frequency band (703 MHz to 803 MHz), the second frequency band may be a low frequency band of a B8 frequency band (703 MHz to 803 MHz), and when the center frequency of the second frequency band is greater than the center frequency of the first frequency band, the second resonant mode may not only improve the antenna efficiency of the first resonant mode, but also widen the bandwidth of the frequency band range, for example, the low frequency band. The second feed 170 may excite the second radiator 120 to support the first frequency band or the second frequency band, so that the second antenna formed by the second feed 170 and the second radiator 120 may support the same-frequency signal with the first resonant mode or the second resonant mode. In fig. 12, the wireless signal supported by the second antenna may be the same frequency signal as the second frequency band signal supported by the second resonant mode.

It is understood that the first frequency band supported by the first resonant mode and the second frequency band supported by the second resonant mode may be two frequency bands of different frequency band ranges, respectively. For example, the first frequency band may be a low frequency band and the second frequency band may be a medium-high frequency band. At this time, under the excitation of one first feed 140, the first radiator 110 and the decoupling element 130 may support two different wireless signals, and the electronic device 10 may be suitable for more communication scenarios.

In the electronic device 10 of the embodiment of the present application, the first end 131 of the decoupling element 130 is grounded through the first ground return path 101 with a larger impedance value, and the second end 132 is grounded through the second ground return path 102 with a smaller impedance value, so that the decoupling element 130 and the first radiator 110 can form a radiation mode of a reverse branch current in the same direction, the decoupling element 130 can also excite a second resonance mode of a ring mode, and the second resonance mode of the ring mode can further bind an electric field generated by the first radiator 110 at the second end 132 and inhibit excitation of the electric field to the second radiator 120, so that the first antenna formed by the first radiator 110 and the first feed source 140 has a better isolation performance and a better radiation performance within the bandwidth of the whole first wireless signal.

It should be noted that, the above is merely an exemplary illustration that the second end 132 of the decoupling element 130 is grounded, and the directions of the resonant currents formed on the first radiator 110 and the decoupling element 130 are the same, and the first radiator 110 and the decoupling element 130 may also form other resonant modes to have the same directional current, which is not limited in the embodiment of the present application.

When the first end 131 of the decoupling member 130 is grounded or the first end 131 and the second end 132 are grounded at the same time, the direction of the resonant current formed on the first radiator 110 is opposite to the direction of the resonant current formed on the decoupling member 130 under the excitation of the first feed source 140. At this time, the decoupling member 130 can inhibit the electric field generated by the first radiator 110 from being coupled to the second radiator 120, so as to reduce the interference of the second radiator 120 on the first radiator 110.

For example, please refer to fig. 15 and fig. 16, fig. 15 is a schematic diagram of a fifth structure of the electronic device 10 according to the embodiment of the present application, and fig. 16 is a schematic diagram of a current distribution of the electronic device 10 shown in fig. 15. The second end 132 of the decoupling member 130 is a free end, and the first end 131 is electrically connected to the ground plane 150. At this time, the first end 131 of the decoupling member 130 grounded is close to the first free end 111 of the first radiator 110, and the free end of the decoupling member 130 is far away from the first free end 111 of the first radiator 110, so that the decoupling member 130 and the first radiator 110 can form a same-directional branch. When the first feed source 140 provides the excitation signal to the first radiator 110, during an alternating half-wave period, a resonant current I16 flowing from the first ground terminal 112 to the first free terminal 111 can be formed on the first radiator 110, and a resonant current I17 flowing from the second terminal 132 to the first terminal 131 can be formed on the decoupling element 130; during another half-wave cycle of the alternating current, the resonant current I16 may flow from the first free end 111 to the first ground 112 and the resonant current I17 may flow from the first end 131 to the second end 132. So that the first radiator 110 and the decoupling member 130 may form a homodyne reverse current structure, the decoupling member 130 may change the electric field distribution of the first radiator 110, and the decoupling member 130 may bind the coupling electric field at the second end 132.

It can be appreciated that, in the embodiment of the present application, the first end 131 of the decoupling member 130 may be electrically connected to the ground plane 150 through the metal conductor 181, and the first end 131 may also be electrically connected to the ground plane 150 through a matching circuit, such as the first matching circuit 182, which is not limited in the embodiment of the present application.

Referring to fig. 17 and 18, fig. 17 is a schematic view of a sixth structure of the electronic device 10 according to the embodiment of the present application, and fig. 18 is a schematic view of a current distribution of the electronic device 10 shown in fig. 17. The impedance value of the first ground return path 101 formed between the first end 131 of the decoupling member 130 and the ground plane 150 is less than the impedance value of the second ground return path 102 formed between the second end 132 and the ground plane 150. Under the excitation of the first feed 140, the first radiator 110 may generate a first resonant mode of a quarter wavelength mode, the decoupling element 130 may generate a second resonant mode of a ring mode, the first resonant mode may excite the first radiator 110 to generate a resonant current I18 flowing from the first ground terminal 112 to the first free terminal 111 during an ac half-wave period, the second resonant mode may generate a resonant current I19 flowing from the ground plane 150 to the second terminal 132 and to the first terminal 131 and back to ground, the resonant current I18 may flow from the first free terminal 111 to the first ground terminal 112 during a next ac half-wave period, and the resonant current I19 may flow from the ground plane 150 to the first terminal 131 and to the second terminal 132 and back to ground. At this time, the first radiator 110 and the decoupling element 130 may also form a current structure with the same direction and opposite direction, the decoupling element 130 may change the electric field distribution of the first radiator 110, and the decoupling element 130 may bind the coupling electric field at the second end 132.

It is understood that in the embodiment of the present application, the first ground return path 101 may include a metal conductor 181, and the first end 131 of the decoupling element 130 may be electrically connected to the ground plane 150 and grounded through the metal conductor 181. The second ground return path 102 may include a matching circuit, such as a first matching circuit 182, and the second end 132 of the decoupling member 130 may be electrically connected to the ground plane 150 and grounded through the first matching circuit 182.

In the electronic device 10 of the embodiment of the present application, the first radiator 110 and the decoupling element 130 may form a reverse branch current structure or form a same direction branch current structure, at this time, the decoupling element 130 may change the electric field distribution of the first radiator 110, the decoupling element 130 may bind the electric field generated by the first radiator 110 at the second end 132 and inhibit the electric field from exciting to the second radiator 120, the electric field generated by the first radiator 110 is mainly on the first radiator 110 and the decoupling element 130, and very little electric field is coupled to the second radiator 120, so that the decoupling element 130 may play a role in coupling inhibition for the second radiator 120, and interference of the second radiator 120 on the first radiator 110 may be reduced.

When the fourth end 122 of the second radiator 120 is grounded such that the first radiator 110 and the second radiator 120 are in the mouth-to-mouth radiation structure, the decoupling element 130 of the embodiment of the present application can inhibit the electric field of the first radiator 110 from coupling to the second radiator 120, and the decoupling element 130 can inhibit the electric field of the second radiator 120 from coupling to the first radiator 110.

Referring to fig. 10 to 14 again and fig. 19 again, fig. 19 is a schematic diagram of current distribution when the second feed 170 of the electronic device 10 provided in the embodiment of the present application is working. When the second end 132 of the decoupling member 130 is grounded, the decoupling member 130 can be capacitively coupled to the second radiator 120 through the second coupling gap G2 under the excitation of the second feed 170, and the direction of the resonant current formed on the second radiator 120 is opposite to the direction of the resonant current formed on the decoupling member 130. For example, during an alternating half-wave period, the second feed 170 excites the second radiator 120 to form a resonant current I22 flowing from the fourth end 122 to the third end 121, and excites the decoupling element 130 to form a resonant current I23 flowing from the first end 131 to the second end 132; during another half-wave period of the alternating current, the resonant current I22 flows from the third end 121 to the fourth end 122, the resonant current I23 flows from the second end 132 to the first end 131, and the decoupling element 130 and the second radiator 120 can form a common-branch reverse current. At this time, referring to fig. 20, fig. 20 is a schematic diagram showing the electric field distribution of the second feed source 170 of the electronic device 10 according to the embodiment of the present application when the second feed source is operated in different situations, as shown in fig. 20 (c) and fig. 20 (d), the decoupling element 130 may change the electric field distribution of the second radiator 120, the decoupling element 130 may bind the electric field generated by the second radiator 120 at the first end 131 of the decoupling element 130 and inhibit the electric field from exciting to the first radiator 110, the electric field generated by the second radiator 120 is mainly on the first radiator 110 and the decoupling element 130, and a small portion of the electric field is coupled to the second radiator 120, and the electric field strength coupled to the second radiator 120 is also weakened, so that the decoupling element 130 may play a role in coupling inhibition for the first radiator 110, and may reduce the interference of the first radiator 110 on the second radiator 120.

Referring to fig. 15 to 18 again and fig. 21 again, fig. 21 is another schematic diagram of current distribution when the second feed 170 of the electronic device 10 provided in the embodiment of the present application is operated. When the first end 131 of the decoupling member 130 is grounded, the decoupling member 130 can be capacitively coupled to the second radiator 120 through the second coupling gap G2 under the excitation of the second feed source 170, and the direction of the resonant current formed on the second radiator 120 is the same as the direction of the resonant current formed on the decoupling member 130. For example, during an alternating half-wave period, the second feed 170 excites the second radiator 120 to form a resonant current I24 flowing from the fourth end 122 to the third end 121, and excites the decoupling element 130 to form a resonant current I25 flowing from the second end 132 to the first end 131; during another half-wave cycle of the alternating current, the resonant current I24 flows from the third terminal 121 to the fourth terminal 122 and the resonant current I25 flows from the first terminal 131 to the second terminal 132. At this time, the decoupling member 130 and the second radiator 120 may form a reverse branch current, the decoupling member 130 may change the electric field distribution of the second radiator 120 and bind the electric field generated by the second radiator 120 at the first end 131 of the decoupling member 130 and inhibit the electric field from exciting to the first radiator 110, so as to reduce the interference of the first radiator 110 on the second radiator 120.

It will be appreciated that upon excitation by the second feed 170, the decoupling element 130 may cause the electric field generated by the second radiator 120 to be suppressed to the side of the first coupling gap G1 facing away from the first radiator 110. For example, in the drawings of the present application, the electric field generated by the second radiator 120 may be bound to the right side of the first radiator 110, and the electric field generated by the second radiator 120 is not easily coupled to the first radiator 110.

It is understood that the decoupling member 130 of the embodiments of the present application may inhibit the electric field of the first radiator 110 from coupling to the second radiator 120, or the decoupling member 130 may inhibit the electric field of the second radiator 120 from coupling to the first radiator 110. In the antenna architecture shown in fig. 10 to 14, the decoupling element 130 may form a structure of reverse current with the first radiator 110 in the same direction as the first radiator 120, so that the decoupling element 130 may inhibit the electric field of the first radiator 110 from coupling to the second radiator 120 to reduce the interference of the second radiator 120 to the first radiator 110 when the first feed source 140 works, and the decoupling element 130 may inhibit the electric field of the second radiator 120 from coupling to the first radiator 110 to reduce the interference of the first radiator 110 to the second radiator 120 when the second feed source 170 works. Similarly, in the antenna architecture shown in fig. 15 to 18, the decoupling element 130 may form a current structure with the first radiator 110 in the same direction and opposite branches, and the decoupling element 130 may form a current structure with the second radiator 120 in the same direction and opposite branches, so that the decoupling element 130 may inhibit the electric field of the first radiator 110 from coupling to the second radiator 120 to reduce the interference of the second radiator 120 on the first radiator 110 when the first feed source 140 works, and the decoupling element 130 may inhibit the electric field of the second radiator 120 from coupling to the first radiator 110 to reduce the interference of the first radiator 110 on the second radiator 120 when the second feed source 170 works.

It will be appreciated that referring again to fig. 8-21, the electronic device 10 may further include at least one of a third matching circuit 184 and a fourth matching circuit 185. One end of the third matching circuit 184 is electrically connected to the first feeding portion 113 of the first radiator 110, the other end of the third matching circuit 184 is electrically connected to the first feed source 140, and the third matching circuit 184 can perform impedance matching adjustment on the excitation signal provided by the first feed source 140. One end of the fourth matching circuit 185 is electrically connected to the second feeding portion 123 of the second radiator 120, the other end of the fourth matching circuit 185 is electrically connected to the second feed source 170, and the fourth matching circuit 185 can perform impedance matching adjustment on the excitation signal provided by the second feed source 170. The third matching circuit 184 and the fourth matching circuit 185 may include an indefinite number of inductance elements and capacitance elements, which are not limited in the embodiment of the present application.

According to the electronic device 10 disclosed by the embodiment of the application, the structures of the first radiator 110 and the second radiator 120 and the decoupling piece 130 are set, so that the decoupling piece 130 forms a same-direction branch reverse current structure with one radiator in the first radiator 110 and the second radiator 120 and forms a reverse-direction branch same-direction current structure with the other radiator, the decoupling piece 130 can realize decoupling of two same-frequency antennas, and isolation performance and radiation performance of the two same-frequency antennas are greatly improved.

It should be noted that, the first frequency band supported by the first antenna and the second antenna in the embodiments of the present application may be, but not limited to, a wireless fidelity (Wireless Fidelity, abbreviated as Wi-Fi) signal frequency band, a global positioning system (Global Positioning System, abbreviated as GPS) signal frequency band, a third Generation mobile communication technology (3 rd-Generation, abbreviated as 3G) frequency band, a fourth Generation mobile communication technology (4 th-Generation, abbreviated as 4G) frequency band, a fifth Generation mobile communication technology (5 th-Generation, abbreviated as 5G) frequency band, a near field communication (Near field communication, abbreviated as NFC) signal frequency band, a Bluetooth (BT) signal frequency band, an Ultra WideBand (UWB) signal frequency band, and so on.

The decoupling component 130 may implement decoupling of any suitable frequency band signal. For example, in the above embodiment, the decoupling element 130 may implement decoupling of the first and second antennas supporting the first frequency band (N78 band, 3.4GHz-3.6 GHz) signals with a center frequency of about 3.5 GHz. For another example, please refer to fig. 22 to 24, fig. 22 is a seventh structural diagram of the electronic device 10 provided in the embodiment of the present application, fig. 23 is a schematic diagram of electric field distribution of the electronic device 10 shown in fig. 22 under different scenes, fig. 24 is a schematic diagram of S-parameter curves of the electronic device 10 shown in fig. 22 under different scenes, and fig. 25 is a schematic diagram of antenna efficiency curves of the electronic device 10 shown in fig. 22 under different scenes. The decoupling element 130 may also implement decoupling of the first and second antennas supporting the first frequency band signal having a center frequency of about 0.75 GHz.

As shown in fig. 22, the distance between the first radiator 110 and the second radiator 120 is long, and the decoupling member 130 is located between the first radiator 110 and the second radiator 120. Fig. 23 (e) is a schematic diagram of electric field distribution of the electronic device 10 shown in fig. 17 without the decoupling element 130, fig. 23 (f) is a schematic diagram of electric field distribution of the second end 132 of the decoupling element 130 shown in fig. 17 when the second end 132 of the decoupling element 130 is grounded through the matching circuit, and fig. 17 (g) is a schematic diagram of electric field distribution of the second end 132 of the decoupling element 130 when the second end is disconnected from the ground. As can be seen from fig. 23, when the second end 132 of the decoupling member 130 is grounded or not grounded, the decoupling member 130 can form reverse branch current decoupling, the decoupling member 130 can change the electric field distribution of the first radiator 110, the decoupling member 130 can bind the electric field generated by the first radiator 110 near the second end 132 of the decoupling member 130, and the decoupling member 130 can inhibit the electric field of the first radiator 110 from being coupled to the second radiator 120. In addition, as shown in fig. 24, the curves L18, L19 and L20 in fig. 24 are S-parameter curves of the electronic device 10 when the electronic device 10 is not provided with the decoupling element 130, the second end 132 of the decoupling element 130 is grounded through the matching circuit, and the second end 132 of the decoupling element 130 is disconnected from the ground, and as can be seen from the region C in fig. 24, after the decoupling element 130 is provided, the depth of the antinode of the region C corresponding to the curves L19 and L20 is shallower than the depth of the antinode of the region C corresponding to the curve L18, which means that after the decoupling element 130 is added, the decoupling element 130 can weaken the coupling of the first radiator 110 to the second radiator 120, and the decoupling element 130 can play a role of coupling inhibition. In addition, as shown in fig. 25, the curves L21 and L22 in fig. 25 are the radiation efficiency curve and the system efficiency curve of the electronic device 10 when the electronic device 10 is not provided with the decoupling member 130, the curves L23 and L24 are the radiation efficiency curve and the system efficiency curve of the electronic device 10 when the first end 131 of the decoupling member 130 is grounded through the matching circuit, and the curves L25 and L26 are the radiation efficiency curve and the system efficiency curve of the electronic device 10 when the first end 131 of the decoupling member 130 is disconnected from the ground, as can be seen from fig. 20, the electronic device 10 has better radiation performance after the decoupling member 130 is provided.

The decoupling structure of the electronic device 10 in the embodiment of the application can realize the decoupling of two co-frequency antennas with low frequency and the decoupling of two co-frequency antennas with ultrahigh frequency, and greatly improves the isolation performance and the radiation performance of the two co-frequency antennas.

Referring to fig. 26, fig. 26 is a schematic diagram of an eighth structure of the electronic device 10 according to the embodiment of the present application, based on the structure of the electronic device 10. The electronic device 10 may also include a display screen 200, a center 300, a circuit board 400, a battery 500, and a rear housing 600.

The display screen 200 is disposed on the middle frame 300 to form a display surface of the electronic device 10 for displaying information such as images, text, and the like. The display screen 200 may include a liquid crystal display (Liquid Crystal Display, LCD) or an Organic Light-Emitting Diode (OLED) display, or the like.

The middle frame 300 may include a frame 310 and a middle plate 320, the frame 310 may be a hollow frame structure and form an outer frame of the electronic device 10, and the middle plate 320 may be a thin plate or sheet structure. The center 300 is used to provide support for the electronics or functional components in the electronic device 10 to mount the electronics, functional components of the electronic device 10 together. For example, the middle frame 300 may be provided with grooves, protrusions, through holes, etc. to facilitate mounting of the electronic devices or functional components of the electronic apparatus 10. It is understood that the material of the middle frame 300 may include metal or plastic.

The circuit board 400 is disposed on the middle frame 300 to be fixed, and the circuit board 400 is sealed inside the electronic device 10 by the rear case 600. The circuit board 400 may have a processor integrated thereon, and may further have one or more of a headset interface, an acceleration sensor, a gyroscope, a motor, and other functional components integrated thereon. Meanwhile, the display screen 200 may be electrically connected to the circuit board 400 to control the display of the display screen 200 by a processor on the circuit board 400.

The battery 500 is disposed on the center 300, and the battery 500 is sealed inside the electronic device 10 by the rear case 600. Meanwhile, the battery 500 is electrically connected to the circuit board 400 to realize that the battery 500 supplies power to the electronic device 10. Wherein the circuit board 400 may be provided with a power management circuit thereon. The power management circuit is used to distribute the voltage provided by the battery 500 to the various electronic devices in the electronic device 10.

The rear case 600 is connected to the middle frame 300. For example, the rear case 600 may be attached to the middle frame 300 by an adhesive such as a double-sided tape to achieve connection with the middle frame 300. The rear case 600 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 300 and the display screen 200, so as to protect the electronic devices and functional components of the electronic device 10.

It is understood that the ground plane 150 of embodiments of the present application may be, but is not limited to being, formed on the back shell 600, the circuit board 400, or the midplane 320 of the midplane 300. The ground plane 150 may form a common ground for the electronic device 10. The ground plane 150 may be a zero potential plane or structure, the ground plane 150 may be formed by conductors, printed wires, or metal printed layers in the electronic device 10, etc., and a zero potential conductor area may be disposed on the rear case 600, the circuit board 400, or the middle plate 320, and the ground plane 150 may be disposed on the conductor area. The first grounding end 112 of the first radiator 110 and the fourth end 122 of the second radiator 120 may be connected to the ground plane 150 and grounded by, but not limited to, a wire, a spring, a screw, a metal sheet (e.g., a steel sheet), a pad, a conductor bump, etc.

It should be understood that the foregoing is merely an exemplary example of the electronic device 10, and the electronic device 10 according to the embodiments of the present application may further include a camera, a sensor, an electroacoustic conversion device, etc., and these components may be referred to the description in the related art and are not described herein again.

Fig. 26 is a schematic diagram of a ninth structure of the electronic device 10 provided in the embodiment of the application, and fig. 28 is a schematic diagram of a tenth structure of the electronic device 10 provided in the embodiment of the application, referring to fig. 27 and fig. 28. The electronic device 10 may also include a first bezel 311 and a second bezel 312 that are connected to each other. The first frame 311 and the second frame 312 may be outer frames of the middle frame 300. The first frame 311 and the second frame 312 may be connected by bending such that the first frame 311 and the second frame 312 are not collinear. The length of the first frame 311 is greater than that of the second frame 312, the first frame 311 may be a long frame of the electronic device 10, and the second frame 312 may be a short frame of the electronic device 10.

It is understood that, as shown in fig. 27, the first radiator 110, the second radiator 120 and the decoupling member 130 may be disposed on the first frame 311, where the entire antenna structure is formed on the side frame of the electronic device 10. As shown in fig. 28, a portion of the first radiator 110 may be disposed on the first frame 311, another portion of the first radiator 110 may be disposed on the second frame 312, and the decoupling member 130 and the second radiator 120 may be disposed on the second frame 312, and at this time, the first radiator 110, the second radiator 120, and the decoupling member 130 may be disposed mainly on a short frame of the electronic device 10, such as a bottom short frame.

It is understood that the electronic device 10 may further include other frames, such as a third frame 313 and a fourth frame 314, where the third frame 313 may be disposed opposite the first frame 311 and the fourth frame 314 may be disposed opposite the second frame 312, such that the middle frame 300 may be a rectangular frame. It should be noted that, the middle frame 300 may have other shapes, and the specific structure of the middle frame 300 is not limited in the embodiment of the present application.

It can be understood that the first frame 311 and the second frame 312 are conductor structures, and the first frame 311 and the second frame 312 may be provided with gaps to form metal branches, and the first radiator 110, the second radiator 120 and the decoupling element 130 may include at least one metal branch, so that the first radiator 110, the second radiator 120 and the decoupling element 130 may be frame antennas. Of course, the first radiator 110, the second radiator 120, and the decoupling member 130 may be, but not limited to, in the form of an antenna of a flexible circuit board (FPC) or an antenna of self-embedded metal structure design (Mechanical Design Antenna, abbreviated as MDA) and connected to the first frame 311 and the second frame 312. The specific arrangement mode of the three radiators is not limited in the embodiment of the application.

It should be noted that, the antenna scheme of the present application is not only applicable to electronic devices 10 such as mobile phones, but also applicable to electronic devices 10 such as tablet circuits, PC computers, large screens, etc.; meanwhile, the antenna implementation form of the present application is not limited to the metal frame form, and the embodiment of the present application is not limited thereto.

It should be understood that in the description of this application, terms such as "first," "second," and the like are used merely to distinguish between similar objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

The electronic device provided by the embodiment of the application is described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, with the description of the examples given above only to assist in understanding the present application. Meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.

Claims (16)

1. An electronic device, comprising:

the first radiator comprises a first free end, a first grounding end and a first power feeding part, wherein the first power feeding part is arranged at the first free end or between the first free end and the first grounding end, and the first grounding end is grounded;

The second radiator is positioned at one side of the first free end away from the first grounding end;

the decoupling piece is arranged between the first radiator and the second radiator, the decoupling piece comprises a first end and a second end, the first end and the first free end are arranged at intervals to form a first coupling gap, the second end and the second radiator are arranged at intervals to form a second coupling gap, and at least one of the first end and the second end is grounded; and

The first feed source is electrically connected to the first feed portion and is used for exciting the first radiator to generate a first resonance mode of a first frequency band and exciting the decoupling piece to be capacitively coupled with the first radiator through the first coupling gap to generate a second resonance mode of a second frequency band; wherein,

the decoupling element is used for inhibiting an electric field generated by the first radiator from being coupled to the second radiator.

2. The electronic device of claim 1, wherein the decoupling element is configured to cause an electric field generated by the first radiator to be suppressed to a side of the second coupling slot facing away from the second radiator.

3. The electronic device of claim 1, wherein a direction of a resonant current formed on the first radiator is the same as a direction of a resonant current formed on the decoupler when at least the second ground is energized by the first feed.

4. The electronic device of claim 3, wherein the first end is a free end and the second end is electrically connected to a ground plane.

5. The electronic device of claim 3, wherein a first ground return path is formed between the first end and a ground plane, a second ground return path is formed between the second end and the ground plane, and an impedance value of the first ground return path is greater than an impedance value of the second ground return path; wherein,

the first radiator forms the first resonant mode of a quarter wavelength mode and the decoupling element forms the second resonant mode of a ring mode under the excitation of the first feed source.

6. The electronic device of claim 5, wherein the electronic device further comprises:

one end of the first matching circuit is electrically connected with the first end, and the other end of the first matching circuit is electrically connected with the ground plane; and

And one end of the metal conductor is connected to the second end, and the other end of the metal conductor is connected to the ground plane.

7. The electronic device of claim 5, wherein the first frequency band and the second frequency band are two sub-bands within a same frequency band range; or the first frequency band and the second frequency band are respectively two frequency bands in different frequency band ranges; wherein,

The center frequency of the second frequency band is greater than the center frequency of the first frequency band.

8. The electronic device of claim 1, wherein a resonant current formed on the first radiator flows in a direction opposite to a resonant current formed on the decoupler when at least the first ground is excited by the first feed.

9. The electronic device of claim 8, wherein the second end is a free end and the first end is electrically connected to a ground plane.

10. The electronic device of claim 8, wherein a first ground return path is formed between the first end and a ground plane, a second ground return path is formed between the second end and the ground plane, and an impedance value of the first ground return path is less than an impedance value of the second ground return path.

11. The electronic device of any one of claims 1 to 10, wherein the second radiator comprises a third end, a fourth end and a second feed, the third end being disposed spaced apart from the second end to form the second coupling slot, the fourth end extending in a direction away from the decoupling element, the second feed being disposed between the third end and the fourth end; wherein,

The electronic device further includes:

the second feed source is electrically connected to the second feed portion and is used for exciting the second radiator to generate a third resonance mode of the first frequency band.

12. The electronic device of claim 11, wherein the second radiator further comprises a ground disposed at the third end, the fourth end, or between the third end and the fourth end.

13. The electronic device of claim 11, wherein the decoupling element is further configured to capacitively couple with the second radiator through the second coupling slot under the excitation of the second feed, the decoupling element further configured to suppress an electric field generated by the second radiator under the excitation of the second feed from coupling to the first radiator.

14. The electronic device of claim 13, wherein the fourth terminal is grounded, and wherein a direction of a resonant current formed on the second radiator is opposite to a direction of a resonant current formed on the decoupling element when at least the second terminal is grounded.

15. The electronic device of claim 13, wherein the fourth terminal is grounded, and when at least the first terminal is grounded, a direction of a resonant current formed on the second radiator is co-current with a direction of a resonant current formed on the decoupling element under the excitation of the second feed.

16. The electronic device of claim 11, further comprising a first frame and a second frame connected in a bent manner, the first frame having a length greater than a length of the second frame; wherein,

the first radiator, the second radiator and the decoupling piece are all arranged on the first frame; or,

part of the first radiator is arranged on the first frame, the other part of the first radiator is arranged on the second frame, and the decoupling piece and the second radiator are arranged on the second frame.