CN116613508A

CN116613508A - Antenna device and electronic equipment

Info

Publication number: CN116613508A
Application number: CN202210118517.5A
Authority: CN
Inventors: 雍征东
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2023-08-18
Also published as: WO2023151393A1

Abstract

The application provides an antenna device and electronic equipment, wherein the ground plane of an antenna unit comprises a first side and a second side with different extending directions, the first side is provided with a first grounding point, and the second side is provided with a second grounding point; the antenna unit is arranged opposite to the first edge and is electrically connected to the first grounding point; the first feed source is electrically connected with the antenna unit and is used for providing a first excitation signal so that the antenna unit transmits a first wavelength signal; the first conductor structure is arranged opposite to the second side, and is electrically connected to the second grounding point for reducing the directivity of the antenna unit for transmitting the first wavelength signal. The antenna device has lower directivity, is not easy to trigger a power back-off event, and has better radiation performance.

Description

Antenna device and electronic equipment

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 smartphones are capable of realizing more and more functions, and communication modes of the electronic devices are also more diversified. For example, the electronic device may implement functionality such as cellular communications, wireless fidelity (WIreless Fidelity, wi-Fi for short), and so forth.

However, the Wi-Fi antenna in the related art has a large directivity, and when the Wi-Fi antenna works, a power backoff event is easily triggered, so that the radiation performance of the Wi-Fi antenna is reduced. Therefore, there is a need to propose a solution for reducing the directivity of Wi-Fi antennas.

Disclosure of Invention

The application provides an antenna device and an electronic apparatus, which can reduce directivity of the antenna device.

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

the ground plane comprises a first side and a second side with different extending directions, wherein the first side is provided with a first grounding point, and the second side is provided with a second grounding point;

an antenna unit disposed opposite to the first side, the antenna unit being electrically connected to the first ground point;

the first feed source is electrically connected with the antenna unit and is used for providing a first excitation signal so that the antenna unit transmits a first wavelength signal; a kind of electronic device with high-pressure air-conditioning system

And the first conductor structure is arranged opposite to the second side and is electrically connected to the second grounding point so as to reduce the directivity of the antenna unit for transmitting the first wavelength signal.

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

According to the antenna device and the electronic equipment, the antenna unit and the first conductor structure of the antenna device are respectively arranged opposite to the first side and the second side of the ground plane, and when the first feed source provides a first excitation signal for the antenna unit so that the antenna unit can transmit a first wavelength signal, the antenna unit can form a directional diagram on one side of the first side; the first conductor structure can change the current distribution of the first excitation signal on the ground plane, the first conductor structure can enable part of the excitation signal originally concentrated on one side of the first side to flow to the second side, the first conductor structure can form another directional diagram on one side of the second side, the directional diagram and the directional diagram formed by the antenna unit can be complementary, so that the directional diagram formed by the antenna device is more uniform, the directivity of the first wavelength signal transmitted by the antenna unit can be reduced by the first conductor structure, the directivity of the whole antenna device is lower, the antenna device is not easy to trigger a power back-off event, and the radiation performance of the antenna device is better.

Drawings

In order to more clearly illustrate the technical solutions of 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 evident that the drawings in the following description are only some embodiments of the 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 diagram of a first structure of an antenna device according to an embodiment of the present application.

Fig. 2 is a schematic diagram of the antenna device shown in fig. 1 without the first conductor structure.

Fig. 3 is a radiation pattern of the antenna unit of the antenna device shown in fig. 2 when the antenna unit is disposed at different positions.

Fig. 4 is another schematic view of the antenna device shown in fig. 1 without the first conductor structure.

Fig. 5 is a radiation pattern of the antenna unit of the antenna device shown in fig. 4 when the antenna unit is disposed at different positions.

Fig. 6 is a radiation pattern of the antenna unit of the antenna device shown in fig. 1 when the antenna unit is disposed at different positions.

Fig. 7 is a radiation pattern of the antenna device shown in fig. 1 when the first conductor structure is disposed at different positions.

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

Fig. 9 is a schematic diagram of a third structure of an antenna device according to an embodiment of the present application.

Fig. 10 is a radiation pattern of the antenna device of fig. 1 when the first conductor structures have different lengths.

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 diagram of a fifth structure of an antenna device according to an embodiment of the present application.

Fig. 13 is a schematic structural diagram 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 13 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.

The embodiment of the application provides an antenna device 100, and the antenna device 100 can realize a wireless communication function. For example, the antenna device 100 may transmit Wi-Fi signals, global positioning system (Global Positioning System, GPS) signals, third Generation mobile communication technology (3 rd-Generation, 3G), fourth Generation mobile communication technology (4 th-Generation, 4G), fifth Generation mobile communication technology (5 th-Generation, 5G), near field communication (Near field communication, NFC) signals, bluetooth (BT) signals, ultra WideBand (UWB) signals, and the like.

Referring to fig. 1, fig. 1 is a schematic diagram of a first structure of an antenna device 100 according to an embodiment of the application. The antenna arrangement 100 comprises a ground plane 110, an antenna element 120, a first feed 130 and a first conductor structure 140.

The ground plane 110 may form a common ground. The ground plane 110 may be formed by conductors, printed wiring, or metal printed layers in the antenna device 100, or the like. For example, the ground plane 110 may be formed on a motherboard or a small board of the antenna apparatus 100 or the electronic device, the ground plane 110 may be formed on a chassis of the antenna apparatus 100 or the electronic device, and the ground plane 110 may be formed on a case of the antenna apparatus 100 or the electronic device.

The ground plane 110 may include a first side 101 and a second side 102 having different extending directions, the first side 101 may extend toward a first direction H1, the second side 102 may extend toward a second direction H2, and the first direction H1 may be different from the second direction H2 such that the first side 101 or an extension thereof may intersect the second side 102 or an extension thereof, and the first side 101 may be directly or indirectly connected to the second side 102. The second side 102 may include a first end 1021 and a second end 1022 disposed opposite to each other, where the first end 1021 may extend toward the direction of the first side 101 and near the side of the first side 101, and the second end 1022 may extend away from the direction of the first side 101. The first side 101 may be provided with a first grounding point 111, and the second side 102 may be provided with a second grounding point 112.

The antenna element 120 may be disposed opposite the first side 101 such that a projection of the antenna element 120 onto the ground plane 110 may be located on the first side 101. The antenna element 120 may be provided with a first free end 121, a first feeding end 122 and a first ground end 123 spaced apart from each other, the first feeding end 122 may be located between the first free end 121 and the first ground end 123, and the first ground end 123 may be electrically connected to the first ground point 111 on the first side 101 of the ground plane 110 such that the antenna element 120 may be grounded through the first ground end 123 and the first ground point 111.

The first feed 130 may be directly or indirectly electrically connected to the antenna element 120, e.g., the first feed 130 may be directly or indirectly electrically connected to the first feed end 122 of the antenna element 120. The first feed 130 may provide a first excitation signal to the antenna element 120, which may excite the antenna element 120 to form a first resonance and transmit a first wireless signal at a first wavelength.

It is understood that the first wireless signal of the first wavelength may be, but is not limited to being, a Wi-Fi signal. For example, the Wi-Fi signal can be 2.4G or 5G. Of course, the first wireless signal of the first wavelength may also be a signal of another frequency band, which is not limited in the embodiment of the present application.

It will be appreciated that the antenna device 100 may further include a tuning circuit (not shown) and a filtering circuit (not shown), which may tune and filter the first wireless signal provided by the first feed 130, so that the antenna unit 120 may transmit the first wireless signal.

The first conductor structure 140 may be disposed opposite the second side 102 such that a projection of the first conductor structure 140 onto the ground plane 110 may be located at the second side 102. The first conductor structure 140 may include a second free end 141 and a second ground end 142 disposed at intervals, and the second free end 141 may be disposed away from the second ground end 142 and the antenna unit 120 toward the second direction H2. The second ground 142 may be electrically connected to the second ground point 112 on the second side 102 of the ground plane 110, and the antenna unit 120 may be grounded through the second ground 142 and the second ground point 112 to reduce the directivity of the first wireless signal transmitted by the antenna unit 120.

The first excitation signal provided by the first feed 130 may flow onto the ground plane 110 through the first ground 123 of the antenna unit 120 and the first ground 111 of the ground plane 110, and the first excitation signal may also be coupled from the second ground 112 and the second ground 142 to the first conductor structure 140, and the first conductor structure 140 may reduce the directivity of the first wavelength signal transmitted by the antenna unit 120.

It is understood that the directivity of an antenna may refer to the radiation or reception capabilities of the antenna for spatially different directions. The directivity of an antenna is opposite to the omni-directivity of an antenna, which means that the radiation or receiving capability of the antenna to spatially different directions is relatively uniform, and in this case, the antenna is non-directional. For example, when the directivity of an antenna in a certain direction is large, the stronger the radiation or receiving capability of the antenna in that direction, the weaker the omni-directivity of the antenna. When the directivity of the antenna is large, the more easily the power backoff event is triggered when the antenna test is performed, thereby affecting the radiation performance of the antenna.

When the antenna unit 120 and the first conductor structure 140 are electrically connected to the ground plane 110 to implement grounding, the first conductor structure 140 may change the current distribution of the excitation signal provided by the first feed 130 on the ground plane 110, and the first conductor structure 140 may form a notch structure (e.g., a first notch structure) to reduce the directivity of the transmission of the first wavelength signal by the antenna unit 120. It can be appreciated that the notch structure may break the original resonance of the antenna unit 120 at a certain frequency point of the operating frequency band when the notch structure is not provided, so that the antenna unit 120 cannot normally operate at the frequency point, and the notch structure may change the phase of the antenna unit 120 at the certain frequency point, so as to reduce the directivity of the antenna unit 120.

For example, please refer to fig. 2 and fig. 3, fig. 2 is a schematic diagram of the antenna device 100 shown in fig. 1 without the first conductor structure 140, and fig. 3 is a radiation pattern of the antenna device 100 shown in fig. 2 when the antenna unit 120 is disposed at different positions. When the antenna device 100 does not include the first conductor structure 140 and the antenna unit 120 is disposed opposite to the first side 101 of the ground plane 110, the first ground 123 of the antenna unit 120 is electrically connected to the first ground point 111 of the ground plane 110 to achieve grounding, and at this time, no first conductor structure 140 changes the distribution of the excitation current provided by the feed source on the ground plane 110. As shown in fig. 3, the first diagram in fig. 3 is a radiation pattern of the antenna unit 120 when the first ground point 111 is disposed at the center point a of the first side 101; the second diagram in fig. 3 shows the radiation pattern of the antenna unit 120 when the first ground point 111 is disposed 20 mm (a-20) below the center point of the first side 101; the third diagram in fig. 3 shows the radiation pattern of the antenna unit 120 when the first ground point 111 is disposed 40 mm (a-40) below the center point of the first side 101; the fourth diagram in fig. 3 shows the radiation pattern of the antenna unit 120 when the first ground point 111 is disposed 70 mm (a-70) below the center point of the first side 101; the fifth diagram in fig. 3 shows the radiation pattern of the antenna unit 120 when the first ground point 111 is disposed 20 mm (a+20) above the center point of the first side 101; the sixth diagram in fig. 3 shows the radiation pattern of the antenna unit 120 when the first ground point 111 is disposed 40 mm (a+40) above the center point of the first side 101. As can be seen from fig. 2 and 3, when the antenna device 100 is not provided with the first conductor structure 140 and the antenna unit 120 is grounded through the first grounding point 111 provided on the first side 101, the directivity of the antenna unit 120 is at least about 2.674dBi when the antenna unit is grounded through the first grounding point 111 located at the center point of the first side 101. There is still room for improvement in this directionality.

For further example, referring to fig. 4 and 5, fig. 4 is another schematic diagram of the antenna device 100 shown in fig. 1 without the first conductor structure 140, and fig. 5 is a radiation pattern of the antenna device 100 shown in fig. 4 when the antenna unit 120 is disposed at a different position. When the antenna device 100 does not include the first conductor structure 140 and the antenna unit 120 is disposed opposite to the second side 102 of the ground plane 110, the first ground point 111 of the ground plane 110 is correspondingly disposed on the second side 102, the first ground end 123 of the antenna unit 120 is electrically connected to the first ground point 111 to achieve grounding, and the first free end 121 of the antenna unit 120 extends in a direction away from the first side 101, where no first conductor structure 140 changes the distribution of the excitation current provided by the feed source on the ground plane 110. As shown in fig. 5, the first diagram in fig. 5 is a radiation pattern of the antenna unit 120 when the first ground point 111 is disposed at the end point B (the first end 1021) of the second side 102 near the first side 101; in fig. 5, the second diagram is a radiation pattern of the antenna unit 120 when the first grounding point 111 is disposed 15 mm (b+15) to the right of the end point B of the second side 102 near the first side 101; the third diagram in fig. 5 shows the radiation pattern of the antenna unit 120 when the first grounding point 111 is disposed 30 mm (b+30) to the right of the end point B of the second side 102 near the first side 101; the fourth diagram in fig. 5 shows the radiation pattern of the antenna unit 120 when the first grounding point 111 is disposed 45 mm (b+45) to the right of the end point B of the second side 102 near the first side 101. As can be seen from fig. 4 and 5, when the antenna device 100 is not provided with the first conductor structure 140 and the antenna unit 120 is grounded through the first grounding point 111 provided on the second side 102, the directivity of the antenna unit 120 when the antenna unit 120 is grounded through the first grounding point 111 located near the center point of the second side 102 (left side of the center point of the second side 102) is smaller than the directivity when the antenna unit 120 is grounded through the first grounding point 111 located far from the first side 101 (right side of the center point of the second side 102), and the directivity of the antenna unit 120 is about 2.838dBi at the minimum. There is still room for improvement in this directionality.

As another example, please refer to fig. 1 in combination with fig. 6 and fig. 7, fig. 6 is a radiation pattern when the antenna unit 120 of the antenna device 100 shown in fig. 1 is disposed at different positions, and fig. 7 is a radiation pattern when the first conductor structure 140 of the antenna device 100 shown in fig. 1 is disposed at different positions. As shown in fig. 1 and fig. 6, when the antenna device 100 includes both the antenna unit 120 and the first conductor structure 140, the first diagram in fig. 6 is a radiation pattern of the antenna device 100 when the first conductor structure 140 is located at the end B (the first end 1021) of the second side 102 and the antenna unit 120 is grounded through the first grounding point 111 disposed at the center point a of the second side 102; the second diagram in fig. 6 is a radiation pattern of the antenna device 100 when the first conductor structure 140 is located at the end B of the second side 102 and the antenna unit 120 is grounded through the first grounding point 111 disposed 20 mm (a-20) below the center point a of the second side 102; the third diagram in fig. 6 is the radiation pattern of the antenna device 100 when the first conductor structure 140 is located at the end B of the second side 102 and the antenna unit 120 is grounded through the first ground point 111 disposed 40 mm (a-40) below the center point a of the second side 102. As shown in fig. 1 and fig. 7, the first diagram in fig. 7 is a radiation pattern of the antenna device 100 when the antenna unit 120 is grounded through the first grounding point 111 disposed 40 mm (a-40) below the center point a of the second side 102 and the first conductor structure 140 is located 15 mm to the right of the end B of the second side 102 near the first side 101; the second diagram in fig. 7 is a radiation pattern of the antenna device 100 when the antenna unit 120 is grounded through the first grounding point 111 disposed 40 mm (a-40) below the center point a of the second side 102 and the first conductor structure 140 is located 35 mm to the right of the end B of the second side 102 near the first side 101. As can be seen from fig. 6 and fig. 7, when the antenna device 100 includes both the antenna unit 120 and the first conductor structure 140, the directivity of the antenna device 100 is about 2.157dBi at the lowest, which is far lower than the directivity when only the antenna unit 120 is disposed as shown in fig. 2 to fig. 5, and the directivity of the antenna device 100 after the first conductor structure 140 is disposed in the embodiment of the application is lower, so that the antenna device 100 is not easy to trigger a power backoff event.

Based on the above description, in the antenna device 100 according to the embodiment of the present application, the antenna unit 120 and the first conductor structure 140 are respectively disposed opposite to the first side 101 and the second side 102 of the ground plane 110, the first conductor structure 140 can change the current distribution of the excitation signal provided by the first feed source 130 on the ground plane 110, the first conductor structure 140 can make a part of the current originally concentrated on the side where the first side 101 is located flow to the second side 102, the first conductor structure 140 can form a pattern on the side of the second side 102, and the pattern is complementary with the pattern formed by the antenna unit 120, so that the pattern formed by the antenna device 100 is more uniform, and therefore the first conductor structure 140 can reduce the directivity of the antenna unit 120 for transmitting the first wavelength signal, so that the directivity of the whole antenna device 100 is lower, the antenna device 100 is not easy to trigger a power back-off event, and the radiation performance of the antenna device 100 is better.

Referring to fig. 6 and fig. 7 again and referring to fig. 8, fig. 8 is a schematic diagram of a second structure of an antenna device 100 according to an embodiment of the application. When the antenna unit 120 and the first conductor structure 140 are grounded through the first ground point 111 and the second ground point 112, respectively, a distance λ between the first ground point 111 and the second ground point 112 may affect the directivity of the antenna device 100. It is appreciated that when the distance λ between the first grounding point 111 and the second grounding point 112 is about the first wavelength, the first conductor structure 140 can greatly reduce the directivity of the antenna unit 120 for transmitting the first wavelength signal. For example, in the antenna device 100 shown in fig. 1 to 8, when the first wavelength signal transmitted by the antenna unit 120 is a Wi-Fi signal of 2.4G, the length of the first side 101 is about 140 mm, and the length of the second side 102 is about 70 mm, when the first grounding point 111 is located 40 mm (a-40) below the center point a of the first side 101 and the second grounding point 112 is located near the end point B of the second side 102 near the first side 101 (e.g., the second grounding point 112 is 15 mm to the right of the end point B), at this time, the distance λ between the first grounding point 111 and the second grounding point 112 along the edge of the ground plane 110 is greater than the distance of the first wavelength, the phase formed by the first excitation current on the first conductor structure 140 is in the same direction as the phase formed on the antenna unit 120, the pattern formed by the first conductor structure 140 is more complementary to the pattern formed by the antenna unit 120, and the directivity of the antenna device 100 is easier to be reduced by the first conductor structure 140.

It will be appreciated that in the above embodiments of the present application, the length of the first side 101 may be greater than the length of the second side 102 such that the first side 101 is the long side of the ground plane 110 and the second side 102 is the short side of the ground plane 110. When the user is in Wi-Fi scene and holds the antenna apparatus 100 or the electronic device laterally, the user is not easy to shade the antenna unit 120, and the antenna unit 120 may have better radiation performance.

Of course, in practical use, the length of the second side 102 may be set to be greater than that of the first side 101, and at this time, the first grounding point 111 and the second grounding point 112 may be set by adjusting appropriate positions on the first side 101 and the second side 102, so that the antenna device 100 has low directivity when the distance between the first grounding point 111 and the second grounding point 112 is about the first wavelength. The embodiment of the present application is not limited thereto.

It will be appreciated that in the embodiment of the present application, the distance λ between the first grounding point 111 and the second grounding point 112 may be approximately equal to the first wavelength, and the distance λ and the first wavelength may float up and down within a certain amplitude, so that the phase formed by the first excitation current on the first conductor structure 140 is the same as the phase formed by the first excitation current on the antenna unit 120. Considering that the antenna element 120, the first conductor structure 140 may increase or decrease its effective electrical length by providing an inductance, capacitance, etc. structure, the distance may float up and down within a certain amplitude of the first wavelength, such that the phase formed by the first excitation signal on the first conductor structure 140 is co-directional with the phase formed by the first excitation signal on the antenna element 120. The specific value of the distance between the first grounding point 111 and the second grounding point 112 is not limited in the embodiment of the present application.

Referring to fig. 7 again and referring to fig. 9, fig. 9 is a schematic diagram of a third structure of an antenna device 100 according to an embodiment of the application. When the first distance L1 between the second ground point 112 and the first end 1021 of the second side 102 is smaller than the second distance L2 between the second ground point 112 and the second end 1022 of the second side 102, the second ground point 112 is located on the second side 102 near the first side 101 (near the antenna unit 120), and when the first conductor structure 140 is grounded through the second ground point 112 and the antenna unit 120 is grounded through the first ground point 111 on the first side 101, the first excitation current is more easily coupled to the first conductor structure 140, the radiation pattern complementary to the antenna unit 120 is more easily formed on the first conductor structure 140, and the directivity of the antenna device 100 is more easily reduced by the first conductor structure 140.

Referring to fig. 1 to 9 again, the first conductor structure 140 may extend in a direction away from the antenna unit 120. The second ground end 142 of the first conductor structure 140 may be electrically connected to the second ground point 112, the second free end 141 of the first conductor structure 140 may extend toward the second end 1022 of the second side 102 away from the first side 101 and away from the antenna unit 120, and the first conductor structure 140 may extend toward a direction away from the first side 101. Thus, the first conductor structure 140 may form a structure with an opening facing away from the first side 101. At this time, on the one hand, the pattern formed by the first conductor structure 140 may extend toward the direction away from the first edge 101, and the pattern formed by the first conductor structure 140 may be more easily complementary to the pattern formed by the antenna unit 120, so that the radiation capability of the antenna device 100 in different directions is more uniform, and the directivity of the antenna device 100 is lower; on the other hand, the first conductor structure 140 extends towards the direction of the second end 1022 of the second side 102, and the first conductor structure 140 does not extend the length of the antenna device 100 on the second side 102, and the size of the antenna device 100 is not excessively large.

It will be appreciated that the first conductor structure 140 may extend parallel to the second side 102 in a direction away from the first side 101; the first conductor structure 140 may also be non-parallel to the second side 102 but extend in a direction away from the first side 101. The embodiment of the present application is not limited thereto. Of course, the first conductor structure 140 may also extend toward the direction in which the antenna unit 120 is located, and in this case, the directivity of the antenna device 100 formed by the first conductor structure 140 and the antenna unit 120 may be made smaller by adjusting the distance between the first conductor structure 140 and the antenna unit 120. The specific orientation of the first conductor structure 140 is not specifically limited by the embodiments of the present application.

Referring to fig. 1 to 9 again, the antenna unit 120 may extend toward the first conductor structure 140. The first ground end 123 of the antenna element 120 may be electrically connected to the first ground point 111 of the ground plane 110, and the first free end 121 of the antenna element 120 may extend in a direction away from the first ground end 123 and in a direction in which the first conductor structure 140 and the second side 102 are located, so that the first free end 121 may be located between the first ground end 123 and the first conductor structure 140. At this time, on the one hand, the antenna unit 120 is closer to the first conductor structure 140, and the first conductor structure 140 is more easily coupled with the first excitation current on the ground plane 110 to form a notch structure; on the other hand, the radiation pattern formed by the antenna unit 120 and the radiation pattern formed by the first conductor structure 140 are more easily complementary to each other, so that the directivity of the antenna device 100 is more easily reduced.

It is understood that the antenna element 120 may extend in a direction parallel to the first side 101 and toward the second side 102, or may extend in a direction not parallel to the first side 101 and toward the second side 102. The embodiment of the present application is not limited thereto. Of course, the antenna element 120 may not extend in the direction of the second side 102. For example, the antenna element 120 may extend away from the first conductor structure 140 in a direction away from the second side 102. At this time, the directivity of the antenna device 100 formed by the first conductor structure 140 and the antenna unit 120 may be made smaller by adjusting the distance between the antenna unit 120 and the first conductor structure 140. The specific orientation of the antenna element 120 is not specifically limited in the embodiments of the present application.

Wherein the length of the first conductor structure 140 may affect the directionality of the first conductor structure 140 for transmitting the first wavelength signal to the antenna unit 120. For example, referring to fig. 10, fig. 10 is a radiation pattern of the antenna device 100 shown in fig. 1 when the first conductor structures 140 have different lengths. The first diagram in fig. 10 is a diagram of the antenna device 100 when the length D of the first conductor structure 140 is 17 mm; the second diagram in fig. 10 is a diagram of the antenna device 100 when the length of the first conductor structure 140 is 18 mm; the third diagram in fig. 10 is a diagram of the antenna device 100 when the length of the first conductor structure 140 is 19 mm; the fourth diagram in fig. 10 shows the antenna device 100 when the length of the first conductor structure 140 is 20 mm. As can be seen from fig. 10, when the antenna unit 120 transmits the first wireless signal with the first wavelength, the first conductor structure 140 can operate in the same frequency band of the antenna unit 120, the first conductor structure 140 can form a quarter-wavelength resonant mode under the excitation of the first excitation signal, the effective electrical length of the first conductor structure 140 is about one quarter of the dielectric wavelength (square root of the wave speed/frequency/dielectric constant), in the present application, when the antenna unit 120 transmits the Wi-Fi signal with 2.4G, the effective electrical length of the first conductor structure 140 can be about 19 mm as shown in the third diagram in fig. 10), and at this time, the directivity of the antenna device 100 can be 2.053dBi, and the first conductor structure 140 can greatly reduce the directivity of the antenna device 100.

It is understood that when the first conductor structure 140 is not electrically connected to a circuit device such as an inductor, a capacitor, or the like, the effective electrical length of the first conductor structure 140 may be comparable to the physical length thereof, and the effective electrical length of the first conductor structure 140 may be equal to the distance between the second ground terminal 142 and the second free terminal 141 thereof. When the first conductor structure 140 is electrically connected to a circuit device such as an inductance, a capacitance, etc., which may increase or decrease its effective electrical length, the effective electrical length of the first conductor structure 140 may be greater or less than its physical length, such that the first conductor structure 140 may form a quarter-wavelength resonant mode. The specific physical length of the first conductor structure 140 is not limited in this embodiment of the present application.

The effective electrical length of the first conductor structure 140 according to the embodiment of the present application is about one quarter of the dielectric wavelength, the first conductor structure 140 may excite a resonant mode with one quarter wavelength, and the first conductor structure 140 may better reduce the directivity of the antenna unit 120.

The antenna unit 120 may form a quarter-wavelength resonant mode when transmitting the first wireless signal with the first wavelength, and the effective electrical length of the antenna unit 120 may be about one quarter of the medium wavelength. At this time, the antenna unit 120 is more easily excited to resonate to transmit the first wireless signal of the first wavelength, and the radiation performance of the antenna unit 120 is better.

Referring to fig. 11, fig. 11 is a schematic diagram of a fourth structure of an antenna device 100 according to an embodiment of the application. The antenna arrangement 100 may also include a second feed 150.

The second feed 150 may be directly or indirectly electrically connected to the first conductor structure 140. For example, the first conductor structure 140 may further be provided with a second feeding end 143, and the second feeding source 150 may be electrically connected to the second feeding end 143. The second feed 150 may provide a second excitation signal, and the first conductor structure 140 may transmit a second wireless signal at a second wavelength when the second feed 150 feeds the first excitation signal to the first conductor structure 140.

It is understood that the second wireless signal may be different from the first wireless signal. For example, the frequency of the second wireless signal may be different from the frequency of the first wireless signal such that the second wavelength of the second wireless signal may be different from the first wavelength of the first wireless signal.

It will be appreciated that the second feed 150 may operate simultaneously with the first feed 130 such that the antenna element 120 may transmit a first wireless signal, the first conductor structure 140 may transmit a second wireless signal, the first conductor structure 140 may also form a notch structure for the antenna element 120, and the first conductor structure 140 may be multiplexed. Of course, the second feed 150 may not operate simultaneously with the first feed 130, and the first conductor structure 140 may serve as a notch structure of the antenna unit 120, or the first conductor structure 140 may separately transmit the second wireless signal.

In the antenna device 100 according to the embodiment of the present application, the first conductor structure 140 is electrically connected to the second feed source 150, and the first conductor structure 140 may not only transmit a wireless signal alone, but also be used as a notch structure of the antenna unit 120, and the first conductor structure 140 may be multiplexed, so that the antenna device 100 may be designed in a miniaturized manner.

Referring to fig. 12, fig. 12 is a schematic diagram of a fifth structure of an antenna device 100 according to an embodiment of the application. The antenna device 100 may further comprise a second conductor structure 160.

The second conductor structure 160 may be disposed on a side of the ground plane 110 that is different from the extending direction of the first side 101. For example, as shown in fig. 12, the ground plane 110 may have a rectangular structure, and the ground plane 110 may further include a third side 103 and a fourth side 104, where the third side 103 may be disposed opposite to the second side 102, the fourth side 104 may be disposed opposite to the first side 101, and the first side 101, the second side 102, the fourth side 104, and the third side 103 may sequentially enclose to form a rectangular structure. The second conductor structure 160 may be disposed opposite the third side 103, and a projection of the second conductor structure 160 onto the ground plane 110 may be located on the third side 103, such that the antenna element 120, the first conductor structure 140, and the second conductor structure 160 may be disposed on different sides of the ground plane 110, respectively. Of course, the second conductor structure 160 may be disposed on other side edges, such as the second edge 102, where both the first conductor structure 140 and the second conductor structure 160 may be disposed on the second edge 102. The specific location of the second conductor structure 160 is not limited in this embodiment of the present application.

It will be appreciated that the second conductor structure 160 may be provided with a third ground 161, and the third side 103 of the ground plane 110 may be provided with a third ground 113, and that the second conductor structure 160, for example, the third ground 161 may be electrically connected to the third ground 113 to reduce the directivity of the first wireless signal transmitted by the antenna unit 120 at the first wavelength. When the first excitation signal provided by the first feed 130 may flow onto the ground plane 110 through the first ground 123 of the antenna element 120 and the first ground 111 of the ground plane 110, the first excitation signal may also be coupled from the third ground 113 and the third ground 161 to the second conductor structure 160, and the second conductor structure 160 may form a notch structure (e.g., a second notch structure) to reduce the directivity of the first wireless signal transmitted by the antenna element 120 at the first wavelength.

It is understood that, based on the foregoing description between the first grounding point 111 and the second grounding point 112, the distance between the third grounding point 113 and the first grounding point 111 may also be about the first wavelength, so that the second conductor structure 160 may further reduce the directivity of the antenna device 100.

It will be appreciated that, as with the first conductor structure 140, the second conductor structure 160 may also extend in a direction away from the antenna unit 120, such that the radiation pattern formed by the second conductor structure 160 may be further complementary to the first conductor structure 140 such that the radiation pattern of the antenna device 100 is more uniform.

It is understood that when the antenna unit 120 transmits the first wireless signal with the first wavelength, the second conductor structure 160 may also form a resonant mode with a quarter wavelength, and the effective electrical length of the second conductor structure 160 may also be a quarter wavelength of the medium.

It will be appreciated that, as with the first conductor structure 140, the antenna device 100 may also include a third feed (not shown) that may be electrically connected to the second conductor structure 160 such that the second conductor structure 160 may transmit a third wireless signal at a third wavelength. The second conductor structure 160 may be used as a notch structure of the antenna unit 120, or may be used to independently transmit wireless signals, and the second conductor structure 160 may be multiplexed.

The antenna device 100 of the embodiment of the present application is provided with two notch structures, namely, the first conductor structure 140 and the second conductor structure 160, and the first conductor structure 140, the second conductor structure 160 and the antenna unit 120 are respectively disposed on different sides of the ground plane 110, so that the first conductor structure 140 and the second conductor structure 160 can be better complementary with the radiation pattern of the antenna unit 120, so that the radiation pattern formed by the antenna device 100 is more uniform, and the directivity of the antenna device 100 is lower.

It should be noted that, the first conductor structure 140 and the second conductor structure 160 of the present application may be a long-strip-shaped radiating branch structure as shown in fig. 1 to 12, or may be other structures. For example, the first conductor structure 140 and the second conductor structure 160 may be, but not limited to, L-shaped, U-shaped, and F-shaped structures, and the shape thereof is not particularly limited in the embodiment of the present application. For another example, the first conductor structure 140 and the second conductor structure 160 may be provided with a slit 311, where the slit 311 may be, but is not limited to, an elongated shape, an arc shape, a ring shape, or a butterfly shape, and the specific structure of the slit 311 is not limited in the embodiments of the present application. For another example, the first conductor structure 140 and the second conductor structure 160 may be electrically connected to a regulating circuit, where the regulating circuit may include one or more components including a capacitor, a resistor, an inductor, and the like, and the structure of the regulating circuit is not limited in the embodiments of the present application. The specific forms of the first conductor structure 140 and the second conductor structure 160 are not limited in the embodiment of the present application, and any notch structure that can form the antenna unit 120 to transmit the first wireless signal with the first wavelength may be the first conductor structure 140 and the second conductor structure 160 in the embodiment of the present application.

It should be noted that, instead of providing the antenna unit 120, the antenna device 100 of the present application may also be provided with other antenna modules, for example, one or more antenna modules may be provided with respect to the fourth side 104 of the ground plane 110. The antenna module may be the same as or different from the antenna unit 120. The embodiment of the present application is not limited thereto.

Based on the above-mentioned structure of the antenna device 100, the embodiment of the present application further 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. 13, fig. 13 is a schematic structural diagram of an electronic device 10 according to an embodiment of the application. The electronic device 10 may include the antenna apparatus 100, the display screen 200, the middle frame 300, the circuit board 400, the battery 500, and the rear case 600 of the previous embodiments.

The display screen 200 may be mounted on the middle frame 300 and connected to the rear case 600 through the middle frame 300 to form a display surface of the electronic device 10. The display screen 200 may be used to display information such as images, text, and the like. The display screen 200 may be an Organic Light-Emitting Diode (OLED) display device or the like.

Middle frame 300 may include a rim 310 and a middle plate 320, middle plate 320 may provide support for the electronics or electronics in electronic device 10. The frame 310 is connected to the edge of the carrier and protrudes from the carrier. The frame 310 and the middle plate 320 form a receiving space, and electronic components and electronic devices in the electronic apparatus 10 may be mounted and fixed in the receiving space.

The circuit board 400 may be mounted on the middle frame 300. The circuit board 400 may be a motherboard of the electronic device 10. One, two or more of microphone, speaker, receiver, earphone interface, universal serial bus interface (USB interface), camera module, distance sensor, environmental sensor, gyroscope, and processor may be integrated on the circuit board 400. Wherein 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 130, the second feed 150, and the third feed may be disposed on the circuit board 400 to control the above devices by a processor.

The battery 500 may be mounted to the middle frame 300. 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. A power management circuit may be provided on the circuit board 400. 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 may be connected 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 to form a protective effect for the electronic devices and functional components of the electronic device 10.

Referring to fig. 13 again, when the frame 310 of the middle frame 300 is made of a conductive material, one or more slits 311 may be formed in the frame 310 of the middle frame 300 to form one or more metal branches 312. The antenna element 120 of the antenna device 100 may include one or more metal stubs 312 therein. Thus, the frame 310 according to the embodiment of the present application may be multiplexed into the antenna unit 120, and the antenna apparatus 100 and the electronic device 10 may implement a miniaturized design.

It is understood that the first conductor structure 140 may also include one or more metal stubs 312 on the bezel 310, and the second conductor structure 160 may also include one or more metal stubs 312 on the bezel 310. The embodiment of the present application is not limited thereto.

It is understood that the antenna element 120, the first conductor structure 140, and the second conductor structure 160 may also be formed on other conductor structures of the electronic device 10. For example, when the rear housing 600 is a conductive material, one or more of the antenna element 120, the first conductor structure 140, and the second conductor structure 160 may also include one or more metal stubs 312 on the rear housing 600. The formation modes of the antenna unit 120, the first conductor structure 140, and the second conductor structure 160 in the embodiment of the present application are not specifically limited.

Referring to fig. 13 again, when the middle plate 320 of the middle frame 300 is made of a conductive material, the middle plate 320 may form the ground plane 110 of the antenna device 100. In this case, the middle plate 320 may be used as a device for carrying the electronic device 10 or as a ground device, multiplexing of the middle plate 320 may be realized, and the antenna device 100 and the electronic device 10 may be miniaturized.

It can be appreciated that when the antenna unit 120, the first conductor structure 140, and the second conductor structure 160 are formed on the middle frame 300 and the middle plate 320 forms the ground plane 110, the antenna unit 120, the first conductor structure 140, and the second conductor structure 160 are closer to the ground plane 110, so that the ground traces of the antenna unit 120, the first conductor structure 140, and the second conductor structure 160 are easier to be disposed, and the structure of the antenna device 100 can be simplified.

It should be noted that the ground plane 110 of the antenna device 100 may be disposed on other structures. For example, the ground plane 110 may be formed on, but is not limited to, the circuit board 400, the back case 600, etc., of the electronic device 10. The embodiment of the present application is not limited thereto.

In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.

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

Claims

1. An antenna device, comprising:

2. The antenna device of claim 1, wherein a distance between the first ground point and the second ground point is a first wavelength.

3. The antenna device according to claim 1, wherein one end of the first conductor structure is electrically connected to the second ground point, and the other end extends in a direction away from the antenna element.

4. The antenna device according to claim 1, wherein the first conductor structure is configured to form a quarter-wavelength resonant mode when the antenna element transmits the first wavelength signal.

5. The antenna device of claim 1, wherein the first wavelength signal comprises a wireless fidelity signal.

6. The antenna device according to any one of claims 1 to 5, further comprising:

and the second feed source is electrically connected with the first conductor structure and is used for providing a second excitation signal so that the first conductor structure transmits a second wavelength signal.

7. An antenna arrangement according to any one of claims 1-5, characterized in that one end of the antenna element is electrically connected to the first ground point and the other end extends in the direction of the first conductor structure.

8. The antenna device according to any one of claims 1 to 5, wherein the ground plane further comprises a third side, the third side being arranged opposite to the second side, the third side being provided with a third ground point; the antenna device further includes:

and the second conductor structure is arranged opposite to the third side and is electrically connected to the third grounding point for reducing the directivity of the antenna unit for transmitting the first wavelength signal.

9. An electronic device comprising an antenna arrangement as claimed in any one of claims 1 to 8.

10. The electronic device of claim 9, further comprising:

the middle frame comprises a middle plate and a frame, wherein the middle plate forms the ground plane, a gap is formed in the frame to form a metal branch, and the antenna unit comprises the metal branch.