CN216563511U - Antenna device and electronic apparatus - Google Patents

Abstract

The application provides an antenna device and electronic equipment, first irradiator and second irradiator of antenna device all are connected with the ground plane electricity and realize ground connection, set up first gap on the ground plane and can block the first excitation signal flow direction second irradiator of part first irradiator transmission, and/or, can block the second excitation signal flow direction first irradiator of part second irradiator transmission, thereby, first gap can reduce the mutual interference between first irradiator and the second irradiator, have better isolation performance between first irradiator and the second irradiator, antenna device's radiation performance is more excellent.

Description

Antenna device and electronic apparatus

Technical Field

The present application relates to the field of communications technologies, and in particular, to an antenna apparatus and 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 are more diversified, and more antenna radiators are arranged inside the electronic devices.

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

SUMMERY OF THE UTILITY MODEL

The application provides an antenna device and electronic equipment, has better isolation performance between a plurality of irradiators of antenna device, and interference between a plurality of irradiators is less, and antenna device's radiation performance is better.

In a first aspect, the present application provides an antenna apparatus, comprising:

the first radiator is used for transmitting a first excitation signal;

the second radiator is used for transmitting a second excitation signal; and

and the ground plane is electrically connected with the first radiator and the second radiator respectively so as to enable the first excitation signal and the second excitation signal to be grounded, and a gap is formed in the ground plane and used for blocking part of the first excitation signal to flow to the second radiator and/or blocking part of the second excitation signal to flow to the first radiator.

In a second aspect, the present application also provides an electronic device comprising an antenna arrangement as described above.

According to the antenna device and the electronic equipment, the first radiator and the second radiator of the antenna device are electrically connected with the ground plane to achieve grounding. The ground plane is provided with a gap which can block part of the first excitation signal transmitted by the first radiator from flowing to the second radiator, also can block part of the second excitation signal transmitted by the second radiator from flowing to the first radiator, and also can simultaneously block part of the first excitation signal from flowing to the second radiator and part of the second excitation signal from flowing to the first radiator. Therefore, the gap can reduce the interference of the first radiator to the second radiator, also can reduce the interference of the second radiator to the first radiator, and also can simultaneously reduce the mutual interference between the first radiator and the second radiator, the first radiator and the second radiator have better isolation performance, and the radiation performance of the antenna device is better.

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 view of a first structure of an antenna device according to an embodiment of the present application.

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

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

Fig. 4 is a schematic structural diagram of the antenna device when no slot is provided in the ground plane.

Fig. 5 is a graph showing a standing wave of the antenna device shown in fig. 4.

Fig. 6 is a first current diagram of the first radiator of the antenna device shown in fig. 4.

Fig. 7 is a first current diagram of the second radiator of the antenna device shown in fig. 4.

Fig. 8 is a second current diagram of the first radiator of the antenna device shown in fig. 4.

Fig. 9 is a second current diagram of the second radiator of the antenna device shown in fig. 4.

Fig. 10 is a schematic diagram of an isolation curve of the antenna device shown in fig. 4.

Fig. 11 is a schematic diagram of a fourth structure of an antenna device according to an embodiment of the present application.

Fig. 12 is a schematic structural diagram of a fifth antenna device according to an embodiment of the present application.

Fig. 13 is a schematic diagram of a sixth structure of an antenna device according to an embodiment of the present application.

Fig. 14 is a schematic diagram of a seventh structure of an antenna device according to an embodiment of the present application.

Fig. 15 is a standing wave diagram of the first radiator of the antenna device shown in fig. 14.

Fig. 16 is a standing wave diagram of the second radiator of the antenna device shown in fig. 14.

Fig. 17 is a first current diagram of the first radiator of the antenna device shown in fig. 14.

Fig. 18 is a first current diagram of the second radiator of the antenna device shown in fig. 14.

Fig. 19 is a second current diagram of the first radiator of the antenna device shown in fig. 14.

Fig. 20 is a second current diagram of the second radiator of the antenna device shown in fig. 14.

Fig. 21 is a schematic diagram of an isolation curve of the antenna device shown in fig. 14.

Fig. 22 is an eighth structural schematic diagram of an antenna device according to an embodiment of the present application.

Fig. 23 is a schematic diagram of a ninth structure of an antenna device according to an embodiment of the present application.

Fig. 24 is a schematic diagram of a tenth structure of an antenna apparatus according to an embodiment of the present application.

Fig. 25 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solution in the embodiment of the present application will be clearly and completely described below with reference to fig. 1 to 23 in the embodiment of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The present invention provides an antenna device and an electronic device, where the antenna device is used to implement a Wireless communication function of the electronic device, for example, the antenna device may be, but not limited to, transmit Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, third Generation mobile communication technology (3th-Generation, abbreviated as 3G), fourth Generation mobile communication technology (4th-Generation, abbreviated as 4G), fifth Generation mobile communication technology (5th-Generation, abbreviated as 5G), Near Field Communication (NFC) signals, and the like.

Referring to fig. 1 to fig. 3, fig. 1 is a first structural schematic diagram of an antenna device 100 according to an embodiment of the present disclosure, fig. 2 is a second structural schematic diagram of the antenna device 100 according to the embodiment of the present disclosure, and fig. 3 is a third structural schematic diagram of the antenna device 100 according to the embodiment of the present disclosure. The antenna device 100 includes a first radiator 110, a second radiator 120, a first feed 131, a second feed 132, and a ground plane 140.

The first feed 131 is electrically connected to the first radiator 110 and enables the first radiator 110 to transmit a first excitation signal, the second feed 132 is electrically connected to the second radiator 120 and enables the second radiator 120 to transmit a second excitation signal, and the first radiator 110 and the second radiator 120 are respectively electrically connected to the ground plane 140 and grounded, so that the first excitation signal and the second excitation signal may be grounded through the ground plane 140. The ground plane 140 may have a slot 141, as shown in fig. 1, the slot 141 may block the first excitation signal transmitted by the first radiator 110 from flowing from the ground plane 140 to the second radiator 120; alternatively, as shown in fig. 2, the slot 141 may block the second excitation signal transmitted by the second radiator 120 from flowing from the ground plane 140 to the first radiator 110; alternatively, as shown in fig. 3, the slot 141 may block the first excitation signal transmitted by the first radiator 110 from flowing from the ground plane 140 to the second radiator 120, or may block the second excitation signal transmitted by the second radiator 120 from flowing from the ground plane 140 to the first radiator 110.

The first radiator 110 may be provided with a first feeding end 111, a first ground end 112, and a first free end 113 that are disposed at an interval, the first feeding end 111 is disposed between the first ground end 112 and the first free end 113, the first feeding source 131 may be directly or indirectly electrically connected to the first radiator 110 through the first feeding end 111, and the first feeding source 131 may provide a first excitation signal to the first radiator 110 and enable the first radiator 110 to transmit a first wireless signal. The ground plane 140 may be disposed with a first ground point 142, the first ground point 142 may be directly or indirectly electrically connected to the first ground terminal 112, and the first excitation signal flowing on the first radiator 110 may flow from the first ground terminal 112 and the first ground point 142 to the ground plane 140, so as to realize the grounding of the first radiator 110.

The second radiator 120 may be provided with a second feeding end 121, a second ground end 122, and a second free end 123 that are disposed at an interval, the second feeding end 121 is disposed between the second ground end 122 and the second free end 123, the second feeding source 132 may be directly or indirectly electrically connected to the second radiator 120 through the second feeding end 121, and the second feeding source 132 may provide a second excitation signal to the second radiator 120 and enable the second radiator 120 to transmit a second wireless signal. The ground plane 140 may further include a second ground point 143 spaced apart from the first ground point 142, the second ground point 143 may be directly or indirectly electrically connected to the second ground terminal 122, and the second excitation signal flowing through the second radiator 120 may flow from the second ground terminal 122 and the second ground point 143 to the ground plane 140, so as to achieve the grounding of the second radiator 120.

The ground plane 140 may form a common ground. The ground plane 140 may be formed by a conductor, a printed wiring, a metal printed layer, or the like in the antenna device 100 or the electronic apparatus. For example, the ground plane 140 may be disposed on a circuit board of the antenna device 100 or the electronic apparatus, and may also be formed on a middle frame of the antenna device 100 or the electronic apparatus. Wherein the slot 141 on the ground plane 140 may block the flow of part of the first excitation signal and part of the second excitation signal on the ground plane 140.

Referring to fig. 4 to 10, fig. 4 is a schematic diagram illustrating a structure of the antenna device 100 when the ground plane 140 is not provided with the slot 141, fig. 5 is a graph illustrating a standing wave of the antenna device 100 shown in fig. 4, fig. 6 is a schematic diagram illustrating a first current of the first radiator 110 of the antenna device 100 shown in fig. 4, fig. 7 is a schematic diagram illustrating a first current of the second radiator 120 of the antenna device 100 shown in fig. 4, fig. 8 is a schematic diagram illustrating a second current of the first radiator 110 of the antenna device 100 shown in fig. 4, fig. 9 is a schematic diagram illustrating a second current of the second radiator 120 of the antenna device 100 shown in fig. 4, and fig. 10 is a schematic diagram illustrating an isolation curve of the antenna device 100 shown in fig. 4.

It is understood that, in fig. 5, the curve S1 is a standing wave curve of the first radiator 110, the curve S2 is a standing wave curve of the second radiator 120, and as shown by the curves S1 and S2, the first radiator 110 and the second radiator 120 can both form a first mode resonance, such as a quarter-wavelength mode resonance, and a second mode resonance, such as a half-wavelength mode radiation resonance. For example, the first radiator 110 may form two resonances in the frequency bands of 1.46GHz and 4.38 GHz; the second radiator 120 forms two resonances in the frequency bands of 1.46GHz and 4.43 GHz. The frequency bands of the wireless signals transmitted by the first radiator 110 and the second radiator 120 are relatively close. The current diagram in fig. 6 may be a current diagram of the first radiator 110 shown in fig. 4 when the first mode, for example, the quarter-wavelength mode, radiates the excitation signal, the current diagram in fig. 7 may be a current diagram of the second radiator 120 shown in fig. 4 when the first mode, for example, the quarter-wavelength mode, radiates the excitation signal, the current diagram in fig. 8 may be a current diagram of the first radiator 110 shown in fig. 4 when the first mode, for example, the half-wavelength mode, radiates the excitation signal, and the current diagram in fig. 9 may be a current diagram of the second radiator 120 shown in fig. 4 when the second mode, for example, the half-wavelength mode, radiates the excitation signal.

It is understood that, as shown in fig. 4, 6 and 8, when the slot 141, e.g., the first slot 1411, is not provided on the ground plane 140, a portion of the first excitation signal transmitted by the first radiator 110 may flow to the second ground point 143. The first driving signal may flow to the second radiator 120 through the second ground point 143 and the second ground terminal 122 or may be directly coupled to the second radiator, thereby generating interference with the second radiator 120. As shown in fig. 4, 7 and 9, when the slot 141, such as the first slot 1411, is not disposed on the ground plane 140, a portion of the second excitation signal transmitted by the second radiator 120 may also flow to the first radiator 110 or be coupled to the first radiator 110 to generate interference. As shown in fig. 10, the isolation between the first radiator 110 and the second radiator 120 shown in fig. 4 is at most-9.4 dB, and the isolation performance between the first radiator 110 and the second radiator 120 is yet to be optimized.

When the slot 141 is disposed on the ground plane 140, as shown in fig. 1, the slot 141 may block a portion of the first excitation signal from flowing toward the second radiator 120 and flowing toward the second radiator 120 through the second ground point 143 and the second ground terminal 122 or directly coupling to the second radiator 120 to generate interference on the second radiator 120. As shown in fig. 2, the slot 141 on the ground plane 140 may also block a portion of the second excitation signal from flowing toward the first radiator 110 and flowing toward the first radiator 110 through the first ground point 142 and the first ground terminal 112 or directly coupled to the first radiator 110 to generate interference on the first radiator 110. As shown in fig. 3, the slot 141 on the ground plane 140 may also block a portion of the first excitation signal from flowing to the second radiator 120 toward the second radiator 120 to generate interference on the second radiator 120, or block a portion of the second excitation signal from flowing to the first radiator 110 toward the first radiator 110 to generate interference on the first radiator 110.

In the antenna device 100 according to the embodiment of the application, the first radiator 110 and the second radiator 120 are both electrically connected to the ground plane 140 to achieve grounding, and the gap 141 disposed on the ground plane 140 may block a portion of the first excitation signal transmitted by the first radiator 110 from flowing to the second radiator 120, may also block a portion of the second excitation signal transmitted by the second radiator 120 from flowing to the first radiator 110, and may also block the first excitation signal from flowing to the second radiator 120 and the second excitation signal from flowing to the first radiator 110. Therefore, the slot 141 on the ground plane 140 may reduce the interference of the first radiator 110 to the second radiator 120, reduce the interference of the second radiator 120 to the first radiator 110, and simultaneously reduce the mutual interference between the first radiator 110 and the second radiator 120, where the first radiator 110 and the second radiator 120 have better isolation performance and the radiation performance of the antenna device 100 is better.

With continued reference to fig. 3, the slot 141 of the ground plane 140 may include a first slot 1411, the first slot 1411 may include a first end a1 and a second end a2 that are disposed opposite to each other, the first end a1 may be disposed corresponding to the first ground point 142, and the second end a2 may be disposed corresponding to the second ground point 143.

It is understood that the first end a1 may be disposed near the first ground point 142 and close to the first ground point 142, so that the first driving signal is easier to flow to the first slot 1411 and is less likely to flow to the second radiator 120. Similarly, the second end a2 may be disposed near the second ground point 143 and close to the second ground point 143, so that the second excitation signal is easier to flow to the first slot 1411 and is less likely to flow to the first radiator 110.

When the first radiator 110 transmits the first excitation signal in the quarter mode or the half mode, the first excitation signal may flow to the ground plane 140 through the first ground terminal 112 and the first ground point 142, and the current density of the first excitation signal at the first ground point 142 is greater, in this case, one end of the first slot 1411 is disposed corresponding to the first ground point 142, and more of the first excitation signal may flow in the first slot 1411 without flowing to the second radiator 120. Similarly, when the second radiator 120 transmits the second excitation signal in the quarter mode or the half mode, the second excitation signal may flow to the ground plane 140 through the second ground terminal 122 and the second ground point 143, and the current density of the second excitation signal at the second ground point 143 is greater, in this case, the other end of the first slot 1411 is disposed corresponding to the second ground point 143, and more of the second excitation signal may flow in the second slot 1412 without flowing to the first radiator 110.

In the ground plane 140 according to the embodiment of the application, two end portions of the first slot 1411 are disposed corresponding to grounding points of the first radiator 110 and the second radiator 120, the first slot 1411 can better block interference of the first excitation signal to the second radiator 120, and also can better block interference of the second excitation signal to the first radiator 110, and mutual interference between the first radiator 110 and the second radiator 120 is smaller.

It is understood that, as shown in fig. 3, the first end a1 and the second end a2 of the first slot 1411 may be communicated with each other, a portion of the first driving signal and a portion of the second driving signal may flow between the first end a1 and the second end a2, and the flow of the first driving signal and the second driving signal is smoother and less prone to adversely affect the radiation performance of the first radiator 110 and the second radiator 120.

It is understood that the first end a1 and the second end a2 of the first slit 1411 may not be connected. For example, referring to fig. 11, fig. 11 is a fourth structural diagram of the antenna device 100 according to the embodiment of the present disclosure, the first slot 1411 may include a first sub-slot a5 and a second sub-slot a6, the first sub-slot a5 is disposed corresponding to the first ground point 142 to block a portion of the first excitation signal from flowing to the second radiator 120, and the second sub-slot a6 is disposed corresponding to the second ground point 143 to block a portion of the second excitation signal from flowing to the first radiator 110. At this time, compared to the scheme in fig. 3 in which the first end a1 and the second end a2 are communicated, the space occupied by the first gap 1411 of fig. 11 is smaller, and the influence of the first gap 1411 on the structural strength of the ground plane 140 is smaller.

It is to be understood that the first slit 1411 may be formed of two or more slit segments, for example, the first slit 1411 shown in fig. 3 and 11 may include two slit segments. Of course, the first slit 1411 may also be formed by one slit segment. For example, referring to fig. 12, fig. 12 is a schematic diagram illustrating a fifth structure of an antenna device 100 according to an embodiment of the present application. The first slot 1411 may also be formed by an arc-shaped or curved slot segment. The embodiment of the present application does not limit the specific structure of the first slit 1411.

Referring to fig. 3, the first radiator 110 may be disposed to extend along a first direction H1, the second radiator 120 may be disposed to extend along a second direction H2, and the first direction H1 may be different from the second direction H2 so that the first radiator 110 may intersect with the second radiator 120. At this time, the first slit 1411 may include a first slit segment a3 and a second slit segment a 4.

One end of the first slot segment a3 may be disposed corresponding to the first ground point 142, and the other end thereof may be disposed extending along the second direction H2 to be parallel to the second radiator 120. One end of the second slot segment a4 may be disposed corresponding to the second ground point 143, and the other end may be disposed to extend in the first direction H1 to be disposed parallel to the first radiator 110, and the second slot segment a4 may communicate with the first slot segment a 3. At this time, the first radiator 110, the second radiator 120, the first slot segment a3, and the second slot segment a4 may form a parallelogram, a length of the first slot segment a3 along the second direction H2 may correspond to a length of the second radiator 120 along the second direction H2, and a length of the second slot segment a4 along the first direction H1 may correspond to a length of the first radiator 110 along the first direction H1.

In the antenna device 100 of the embodiment of the application, the first slot 1411 completely surrounds the first ground terminal 112 of the first radiator 110 and the second ground terminal 122 of the second radiator 120 through the first slot segment a3 and the second slot segment a4, and the first slot 1411 may block more of the first excitation signal from flowing to the second radiator 120 and more of the second excitation signal from flowing to the first radiator 110, so as to greatly increase the isolation between the first radiator 110 and the second radiator 120; meanwhile, the length of the first gap 1411 is not too large to affect the structural strength of the ground plane 140.

It should be noted that, in the first slot 1411 of the embodiment of the present invention, the first slot segment a3 may not be parallel to the second radiator 120, and the second slot segment a4 may not be parallel to the first radiator 110. This is not particularly limited in the examples of the present application.

It should be noted that, in the embodiment of the present invention, the first radiator 110 and the second radiator 120 may also be disposed in parallel, in which case the first direction H1 and the second direction H2 may be in the same direction, and in this case, the first slot segment a3 and the second slot segment a4 may form an inverted "U" shape. Of course, when the first radiator 110 and the second radiator 120 may be disposed in parallel, the shape of the first slot 1411 is not limited to the above structure, for example, the first slot 1411 may be disposed perpendicular to the first radiator 110 and the second radiator 120, and the specific structure of the first slot 1411 is not limited in the embodiment of the present application.

Please refer to fig. 13 and 14, in which fig. 13 is a schematic diagram of a sixth structure of the antenna device 100 according to the embodiment of the present application, and fig. 14 is a schematic diagram of a seventh structure of the antenna device 100 according to the embodiment of the present application. The slot 141 on the ground plane 140 may include a second slot 1412. As shown in fig. 14, the second slot 1412 may be formed on the ground plane 140 simultaneously with the first slot 1411; as shown in fig. 13, the second slot 1412 may also be formed separately on the ground plane 140. Like the first slot 1411, the second slot 1412 may block a portion of the first excitation signal from flowing to the second radiator 120, the second slot 1412 may also block a portion of the second excitation signal from flowing to the first radiator 110, and the second slot 1412 may also block both a portion of the first excitation signal from flowing to the second radiator 120 and a portion of the second excitation signal from flowing to the first radiator 110.

The second slot 1412 comprises a third end b1 and a fourth end b2, and the third end b1 may be disposed corresponding to the first feeding end 111, for example, corresponding to and disposed near the projection of the first feeding end 111 on the ground plane 140. The fourth end b2 may be arranged in correspondence with the second feeding end 121, e.g. in correspondence with and in proximity to the projection of the second feeding end 121 on the ground plane 140.

Since the first feed 131 feeds the first excitation signal to the first radiator 110 through the first feeding end 111 and the second feed 132 feeds the second excitation signal to the second radiator 120 through the second feeding end 121, the current intensity of the first feeding end 111 and the second feeding end 121 is large. When the second slot 1412 is disposed corresponding to the first feeding end 111 and the second feeding end 121, the second slot 1412 may block the flow of the first excitation signal and the second excitation signal, increasing interference between the first radiator 110 and the second radiator 120.

It is understood that, like the first slit 1411, the two ends of the second slit 1412 may or may not be in communication with each other. In the embodiment of the present application, the shape and structure of the second slit 1412 are not specifically limited.

It is understood that the second slot 1412, like the first slot 1411, may also include a third slot segment b3 parallel to the second radiator 120 and a fourth slot segment b4 parallel to the first radiator 110. One end of the third slot segment b3 may be disposed corresponding to the first feeding end 111, the other end of the third slot segment b3 may be disposed extending along the second direction H2, one end of the fourth slot segment b4 may be disposed corresponding to the second feeding end 121, and the other end of the fourth slot segment b4 may be disposed extending along the first direction H1 and communicate with the third slot segment b 3. Thus, the length of the third slot segment b3 may match the length from the second feeding end 121 to the free end of the second radiator 120, and the length of the fourth slot segment b4 may match the length from the first feeding end 111 to the free end of the first radiator 110.

In the antenna device 100 according to the embodiment of the application, the second slot 1412 may completely surround the first feeding end 111 of the first radiator 110 and the second feeding end 121 of the second radiator 120 through the third slot segment b3 and the fourth slot segment b4, and the second slot 1412 may block more flows of the first excitation signal and the second excitation signal, so as to greatly increase the isolation between the first radiator 110 and the second radiator 120.

For example, referring to fig. 15 to fig. 21 in combination with fig. 4 to fig. 10, fig. 15 is a graph of a standing wave of the first radiator 110 of the antenna device 100 shown in fig. 14, fig. 16 is a graph of a standing wave of the second radiator 120 of the antenna device 100 shown in fig. 14, fig. 17 is a graph of a first current of the first radiator 110 of the antenna device 100 shown in fig. 14, fig. 18 is a graph of a first current of the second radiator 120 of the antenna device 100 shown in fig. 14, fig. 19 is a graph of a second current of the first radiator 110 of the antenna device 100 shown in fig. 14, fig. 20 is a graph of a second current of the second radiator 120 of the antenna device 100 shown in fig. 14, and fig. 21 is a graph of an isolation of the antenna device 100 shown in fig. 14.

It can be understood that a curve S3 in fig. 15 is a standing wave curve of the first radiator 110 in fig. 14, a curve S4 in fig. 16 is a standing wave curve of the second radiator 120 in fig. 14, the current diagram shown in fig. 17 can be a current diagram when the first radiator 110 shown in fig. 14 radiates the excitation signal in the first mode, for example, the quarter-wavelength mode, the current diagram shown in fig. 18 can be a current diagram when the second radiator 120 shown in fig. 14 radiates the excitation signal in the first mode, for example, the quarter-wavelength mode, the current diagram shown in fig. 19 can be a current diagram when the first radiator 110 shown in fig. 14 radiates the excitation signal in the second mode, for example, the half-wavelength mode, and the current diagram shown in fig. 20 can be a current diagram when the second radiator 120 shown in fig. 14 radiates the excitation signal in the second mode, for example, the half-wavelength mode.

As can be seen from comparison between fig. 6 and 17, and fig. 8 and 19, after the first slot 1411 and the second slot 1412 are disposed on the ground plane 140, the first excitation signal transmitted by the first radiator 110 mainly flows on the first radiator 110, and the first excitation signal transmitted by the ground plane 140 mainly flows on the first slot 1411 and the second slot 1412, as compared with fig. 6 and 8, the number of the first excitation signals on the second radiator 120 of the antenna device 100 shown in fig. 17 and 19 is less, and thus, the interference of the first radiator 110 on the second radiator 120 is very small. Similarly, as can be seen from comparing fig. 7 and 18 and fig. 9 and 20, the interference of the second radiator 120 with the first radiator 110 is very small when the second excitation signal is less on the first radiator 110 of the antenna device 100 shown in fig. 18 and 20 after the first slot 1411 and the second slot 1412 are disposed, compared with fig. 7 and 9. As can be seen from comparison between fig. 10 and 21, the isolation between the first radiator 110 and the second radiator 120 of the antenna device 100 after the first slot 1411 and the second slot 1412 are set is-17.8 dB, which is 8.4dB higher than the isolation of the antenna device 100 shown in fig. 10, and the isolation performance of the antenna device 100 is better.

Please refer to fig. 22 and 23, in which fig. 22 is an eighth structural schematic diagram of the antenna device 100 according to the embodiment of the present application, and fig. 23 is a ninth structural schematic diagram of the antenna device 100 according to the embodiment of the present application. The slots 141 of the ground plane 140 may further include a third slot 1413, and as shown in fig. 22, the third slot 1413 may be formed in the ground plane 140 together with at least one of the first slot 1411 and the second slot 1412. As shown in fig. 23, the third slit 1413 may be formed on the ground plane 140 separately.

The third slot 1413 may include a fifth end c1 and a sixth end c2, and the fifth end c1 may be disposed corresponding to the first free end 113 of the first radiator 110, for example, near a projection area of the first free end 113 on the ground plane 140; the sixth end c2 may be disposed corresponding to the second free end 123 of the second radiator 120, for example, near a projection area of the second free end 123 on the ground plane 140. The third slot 1413 may block a portion of the first excitation signal from flowing to the second radiator 120, the third slot 1413 may also block a portion of the second excitation signal from flowing to the first radiator 110, and the third slot 1413 may also block a portion of the first excitation signal from flowing to both the second radiator 120 and the first radiator 110.

It is understood that, as can be seen from fig. 8 and 9, and fig. 19 and 20, in some radiation modes, such as a half-wavelength mode, the excitation signal density at the free end of the radiator is strong, and the excitation signal at the free end can couple to the ground plane 140 and interfere with other radiators.

In the antenna device 100 according to the embodiment of the application, the third slot 1413 is disposed corresponding to the first free end 113 and the second free end 123, and the third slot 1413 can better block the interference of the first excitation signal to the second radiator 120 and can also better block the interference of the second excitation signal to the first radiator 110.

It is understood that, like the first slit 1411 and the second slit 1412, the fifth end c1 and the sixth end c2 of the third slit 1413 may or may not be in communication with each other. The shape and structure of the third slit 1413 are not specifically limited in the embodiment of the present application.

It is understood that the third slot 1413, like the first slot 1411 and the second slot 1412, may also include a fifth segment c3 parallel to the second radiator 120 and a sixth segment c4 parallel to the first radiator 110. One end of the fifth segment c3 may be disposed corresponding to the first free end 113, the other end of the fifth segment c3 may be disposed extending along the second direction H2, one end of the sixth segment c4 may be disposed corresponding to the second free end 123, and the other end of the sixth segment c4 may be disposed extending along the first direction H1 and communicate with the fifth segment c 3. Thus, the length of the fifth segment c3 may match the length of the second radiator 120, and the length of the sixth segment c4 may match the length of the first radiator 110.

In the antenna device 100 according to the embodiment of the application, the ground plane 140 is provided with the first slot 1411, the second slot 1412 and the third slot 1413 corresponding to the grounding end, the feeding end and the free end of the first radiator 110 and the second radiator 120, respectively, and the ground plane 140 can better isolate the first radiator 110 from the second radiator 120, so that the isolation between the first radiator 110 and the second radiator 120 can be improved.

Here, the antenna device 100 may further include one or more radiators other than the first radiator 110 and the second radiator 120, for example, one or more third radiators 150, in which case, the slot 141 on the ground plane 140 may further block a part of the excitation signal transmitted by the third radiator 150 from flowing to the first radiator 110 and the second radiator 120, and may also block at least one of the first excitation signal and the second excitation signal of the first radiator 110 and the second radiator 120 from flowing to the third radiator 150.

Referring to fig. 24, fig. 24 is a schematic diagram illustrating a tenth structure of the antenna device 100 according to the embodiment of the present disclosure, where the antenna device 100 may further include a third feed 133 and a third radiator 150 electrically connected to each other, and a fourth feed 134 and a fourth radiator 160 connected to each other. The third radiator 150 may transmit a third driving signal, the fourth radiator 160 may transmit a fourth driving signal, and the third radiator 150 and the fourth radiator 160 are grounded. The slot 141 may block a portion of the third excitation signal from flowing to at least one of the first radiator 110, the second radiator 120, and the fourth radiator 160, may also block a portion of the fourth excitation signal from flowing to at least one of the first radiator 110, the second radiator 120, and the third radiator 150, and of course, may also block at least one of the first excitation signal and the second excitation signal from flowing to the third radiator 150 and the fourth radiator 160.

It is understood that when the second radiator 120 and the third radiator 150 are disposed on the same side, for example, the long side, of the antenna device 100, and the first radiator 110 and the fourth radiator 160 are disposed on the other two opposite sides, for example, the short sides, of the antenna device 100, the slot 141 on the ground plane 140 may include a first slot 1411 in an inverted "T" configuration and a second slot 1412 in an "L" configuration, and in this case, the first slot 1411 and the second slot 1412 may both block mutual interference among the plurality of radiators and occupy a smaller space, so as to avoid affecting the performance of the ground plane 140.

Based on the structure of the antenna device 100, the embodiment of the present application further provides an electronic device 10. 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 (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 other devices. Referring to fig. 25, fig. 25 is a schematic structural diagram of an electronic device 10 according to an embodiment of the present disclosure. The electronic device 10 may include a display 200, a middle frame 300, a circuit board 400, a battery 500, and a rear case 600 in addition to the antenna apparatus 100.

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

The middle frame 300 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 300 is used to provide support for the electronic devices or functional components in the electronic device 10 to mount the electronic devices or functional components of the electronic device 10 together. For example, the middle frame 300 may be provided with a groove, a protrusion, a through hole, etc. to facilitate mounting of the electronic device or the functional component of the electronic apparatus 10. It is understood that the material of the middle frame 300 may include metal or plastic. It is understood that when the middle frame 300 includes a metal material, one or more of the first radiator 110, the second radiator 120, the third radiator 150, and the fourth radiator 160 may be a metal stub on the middle frame 300.

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 be a motherboard of the electronic device 10. 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. One or more of the first feed 131, the second feed 132, the third feed 133, and the fourth feed 134 of the antenna device 100 may be disposed on the circuit board 400. Of course, the above components may be provided on a small board of the electronic device 10, and are not limited herein.

It is understood that the ground plane 140 may be formed on the circuit board 400 and also on the middle frame 300. When the radiator is formed on the middle frame 300, if the ground plane 140 is also formed on the middle frame 300, the radiator and the ground plane 140 may be in the same plane, and if the ground plane 140 is formed on the circuit board 400, the radiator and the ground plane 140 may be stacked.

The battery 500 is disposed on the middle frame 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 enable the battery 500 to power the electronic device 10. The circuit board 400 may be provided thereon with a power management circuit. 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 coupled 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 should be noted that the above is only an exemplary illustration of the electronic device 10 according to the embodiment of the present application, and the electronic device 10 may further include, but is not limited to, a camera module, an acoustic-electric conversion module, a sensor module, and the like. The embodiment of the present application does not limit the specific structure of the electronic device 10.

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

The antenna device and the electronic device provided in the embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of 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 (10)

1. An antenna device, comprising:

the first radiator is used for transmitting a first excitation signal;

the second radiator is used for transmitting a second excitation signal; and

and the ground plane is electrically connected with the first radiator and the second radiator respectively so as to enable the first excitation signal and the second excitation signal to be grounded, and a gap is formed in the ground plane and used for blocking part of the first excitation signal to flow to the second radiator and/or blocking part of the second excitation signal to flow to the first radiator.

2. The antenna device according to claim 1, wherein a first ground point electrically connected to the first radiator and a second ground point electrically connected to the second radiator are provided on the ground plane; the gap comprises a first end and a second end, the first end is arranged corresponding to the first grounding point, and the second end is arranged corresponding to the second grounding point.

3. The antenna device according to claim 2, wherein the first radiator extends in a first direction, and the second radiator extends in a second direction; the slit includes:

one end of the first gap section is arranged corresponding to the first grounding point, and the other end of the first gap section extends along the second direction; and

and one end of the second gap section is arranged corresponding to the second grounding point, and the other end of the second gap section extends along the first direction and is communicated with the first gap section.

4. The antenna device according to claim 1, wherein a first feed terminal is provided on the first radiator, and a second feed terminal is provided on the second radiator; the slot comprises a third end and a fourth end, the third end is arranged corresponding to the first feeding end, and the fourth end is arranged corresponding to the second feeding end.

5. The antenna device according to claim 4, wherein the first radiator extends in a first direction, and the second radiator extends in a second direction; the slit includes:

one end of the third slot section is arranged corresponding to the first feed end, and the other end of the third slot section extends along the second direction; and

and one end of the fourth slot section is arranged corresponding to the second feed end, and the other end of the fourth slot section extends along the first direction and is communicated with the third slot section.

6. The antenna device of claim 1, wherein the first radiator includes a first free end and the second radiator includes a second free end; the gap comprises a fifth end and a sixth end, the fifth end is arranged corresponding to the first free end, and the sixth end is arranged corresponding to the second free end.

7. The antenna device according to any of claims 1 to 6, wherein the first radiator is configured to radiate the first excitation signal in a quarter-wavelength mode; and/or the second radiator is used for radiating the second excitation signal in a quarter-wavelength mode.

8. The antenna device according to any one of claims 1 to 6, wherein the first radiator radiates the first excitation signal in a half-wavelength mode; and/or the second radiator is used for radiating the second excitation signal in a half-wavelength mode.

9. The antenna device according to any of claims 1 to 6, wherein the antenna device further comprises a third radiator for transmitting a third excitation signal, and the slot is further configured to block a portion of the third excitation signal from flowing to the second radiator and the first radiator.

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

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