CN220963744U - Antenna assembly and electronic equipment - Google Patents

Abstract

The utility model discloses an antenna assembly and electronic equipment, including a circuit board, a first radiator and a second radiator, wherein a gap is provided between the first radiator and the second radiator; a feeding point is provided on the first radiator, and the feeding point is used to connect the feeding potential on the circuit board; a first grounding point is provided on the circuit board area corresponding to the second radiator, and the circuit board is grounded through the first grounding point; the circuit board includes a first routing segment, and the first routing segment connects the feeding potential and the first grounding point. The antenna assembly of the utility model has high antenna performance in a limited space, meeting the use needs of existing electronic equipment under highly integrated and extreme stacking communication.

Description

Antenna Assemblies and Electronic Devices

Technical Field

The utility model relates to the technical field of communication, in particular to an antenna component for communication and an electronic device comprising the antenna.

Background technique

In recent years, the communications electronics industry has developed rapidly. Take mobile phones as an example. With the continuous development of smart phones, the functions of mobile phones are becoming more and more abundant, and the integration of mobile phones is getting higher and higher. Therefore, the stacking inside the mobile phone is becoming more and more extreme. Under such high integration and extreme stacking, the space of mobile phone antennas is further compressed, and the performance of mobile phone antennas in limited space is also facing huge challenges.

Utility Model Content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

To this end, an embodiment of the utility model proposes an antenna assembly, which has high antenna performance in a limited space and meets the communication needs of existing electronic devices under high integration and extreme stacking.

An embodiment of the utility model further provides an electronic device including the above antenna assembly.

The antenna assembly of the utility model embodiment includes:

Circuit boards;

A first radiator and a second radiator, wherein a gap is provided between the first radiator and the second radiator;

A feeding point is provided on the first radiator, and the feeding point is used to connect to a feeding potential on the circuit board;

A first grounding point is provided on the circuit board area corresponding to the second radiator, and the circuit board is grounded through the first grounding point;

The circuit board includes a first routing segment, and the first routing segment connects the feed potential and the first ground point.

In some embodiments, the antenna assembly includes a functional component, and the first grounding point is connected to the functional component and is grounded through the functional component.

In some embodiments, the functional component includes: a sensor component, or an audio component, or a shielding cover component.

In some embodiments, the functional component includes an elastic portion, which is elastically deformable and connected to the circuit board.

In some embodiments, the second radiator, the first ground point structure, the first routing segment, and the feeding point structure are an antenna, and the length of the antenna corresponds to a quarter wavelength or a half wavelength mode.

In some embodiments, the circuit board includes a second grounding point, the second grounding point is arranged on a side of the feed potential away from the break, the circuit board is grounded through the second grounding point, and the circuit board includes a second routing segment, the second routing segment connects the feed potential and the second grounding point.

In some embodiments, the feeding point is located between the first grounding point and the second grounding point, and the break and the first grounding point are located on the same side of the feeding point.

In some embodiments, the circuit board is provided with a first supporting point and a second supporting point, and the second grounding point is provided between the first supporting point and the second supporting point.

In some embodiments, a connection point between the feeding point and the circuit board, and a connection point between the first grounding point and the circuit board are both adjacent to the second supporting point.

The electronic device of the embodiment of the utility model includes the antenna assembly as described in any of the above embodiments.

In some embodiments, the electronic device is a mobile phone, the mobile phone includes a middle frame, the circuit board is arranged in the middle frame, and the first radiator and the second radiator are integrated in the middle frame.

The antenna assembly of the embodiment of the utility model has high antenna performance in a limited space, meeting the use requirements of communication under the highly integrated and extreme stacking of existing electronic devices.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present utility model.

FIG. 2 is a schematic diagram showing the arrangement of the first supporting point and the second supporting point of the antenna assembly according to an embodiment of the present utility model.

FIG. 3 is a partial structural schematic diagram of an antenna assembly according to an embodiment of the present utility model.

FIG. 4 is a schematic diagram showing comparison of efficiency curves of antenna assemblies according to an embodiment of the present invention.

Reference numerals:

Circuit board 1; first supporting point 11; second supporting point 12;

Middle frame 2; break 21; first radiator 22; second radiator 23;

Feed point 3;

First grounding point 4;

Second grounding point 5.

Detailed ways

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

As shown in Figures 1 to 3, the antenna assembly of the embodiment of the utility model includes a circuit board 1 and a radiator, a feeding point 3 and a first grounding point 4. The circuit board 1 can be a circuit board of an electronic device such as a mobile phone or a tablet, and the circuit board 1 has the function of transmitting or receiving radio frequency waves.

The radiator can be a part of the middle frame 2 of the electronic device, and the feeding point 3 is used to excite resonance of at least part of the radiator based on radio frequency waves. For example, a plurality of radiation branches can be provided on the radiator. When in use, the radiator can excite resonance of the radiation branches through radio frequency waves, thereby realizing the use needs of communication.

As shown in Figures 1 and 2, a break 21 may be provided on the radiator. The radiator may include a frame. The frame may be provided at the edge of the radiator and extend along the circumference of the radiator. Only one break 21 may be provided and may be provided on the frame of the radiator. The break 21 may divide the frame into two relatively independent parts, which are respectively a first radiator 22 and a second radiator 23.

It should be noted that the frame may be a closed loop structure, that is, the frame may extend along the circumference of the radiator to form a closed circle. In some other embodiments, the frame may be a non-closed loop structure and may extend along a portion of the edge of the radiator.

The feeding point 3 is connected between the circuit board 1 and the first radiator 22 on one side of the break 21, and the first grounding point 4 is connected between the circuit board 1 and the second radiator 23 on the other side of the break 21. For example, as shown in FIG1 and FIG2, one end of the feeding point 3 can be connected to the first radiator 22 on the left side of the break 21, and the other end of the feeding point 3 can be connected to the circuit board 1. One end of the first grounding point 4 can be connected to the second radiator 23 on the right side of the break 21, and the other end of the first grounding point 4 can be connected to the circuit board 1.

As shown in Figure 1, the radio frequency waves can be conducted from the connection between the circuit board 1 and the feeding point 3 along the feeding point 3 to the second radiator 23, and the radio frequency waves on the second radiator 23 can also be conducted to the circuit board 1 via the first grounding point 4. For details, please refer to the directions indicated by the two dotted arrows on the right side of Figure 1.

It should be noted that a first routing segment (not shown) is provided on the circuit board 1, and the first routing segment is connected between the feeding point and the first grounding point, so that the antenna assembly can form a complete antenna loop. That is, the second radiator 23, the feeding point 3, the first grounding point 4, and the first routing segment can construct a first antenna, and the wavelength of the constructed first antenna is smaller than one wavelength of the radio frequency wave.

For example, the wavelength corresponding to the first antenna may be one quarter of the wavelength of the radio frequency wave (first frequency band) (corresponding to the following 1/4 mode) or one half of the wavelength of the radio frequency wave (corresponding to the following 1/2 mode). It should be noted that the specific wavelength of the first antenna can be adjusted by adjusting the position of the first grounding point 4.

Optionally, the feeding point 3 and the first grounding point 4 may both be in the form of spring clips, that is, the feeding point 3 may be a feeding spring clip, and the first grounding point 4 may be a first grounding spring clip.

The antenna assembly of the embodiment of the utility model adds a first grounding point 4. Compared with the form of transmitting and receiving radio frequency waves only through the feeding point 3 in the prior art, the added first grounding point 4 can form an independent loop between the second radiator 23 and the circuit board 1, and can construct a first antenna with the feeding point 3 and the second radiator 23 to form a new radiation mode (1/4 mode or 1/2 mode), so that the antenna assembly has better radiation capability and meets the needs of communication in limited space under highly integrated and extreme stacking of existing electronic devices.

In some embodiments, the antenna assembly includes a functional component (not shown), the first grounding point 4 is connected between the second radiator 23 and the functional component, the functional component is connected between the first grounding point 4 and the circuit board 1, and the functional component includes an elastic portion, which is elastically deformable and connected to the circuit board 1. For example, the functional component can be a photosensitive board, which includes a spring, and the spring forms the elastic portion.

Therefore, the positions of the functional components are rearranged according to the additional first grounding point 4, so that the functional components and the first grounding point 4 can be roughly integrated in the same position, and the first grounding point 4 can be reused with the spring clips of the light-sensitive class, so that the existing structure can be reused as much as possible, reducing the impact of the addition of the first grounding point 4 on the existing structure and improving versatility.

In some embodiments, the functional component may specifically be a sensor component, an audio component or a shielding cover component, wherein the sensor component may specifically be a gravity sensor, a light sensor, a fingerprint sensor, a heart rate sensor, etc. The audio component may specifically be a speaker, etc. The shielding cover component may specifically be a shielding body that shields and protects electronic components, circuits, cables, etc. from electromagnetic interference.

In some embodiments, the antenna assembly includes a second grounding point 5, which is connected between the first radiator 22 and the circuit board 1. For example, as shown in FIG1 , one end of the second grounding point 5 can be connected to the first radiator 22 located on the left side of the break 21, and the other end of the second grounding point 5 can be connected to the circuit board 1. A second routing segment (not shown) is provided on the circuit board 1, and the second routing segment is connected between the feed potential and the second grounding point 5. The antenna assembly can also form a complete antenna loop by means of the second routing segment. That is, the first radiator 22, the second grounding point 5, the second routing segment, and the feed point 3 construct a second antenna, and the second antenna is a loop antenna (LOOP antenna).

Optionally, the second grounding point 5 may also be in the form of a spring.

The distance between the second grounding point 5 and the resonant position on the loop antenna is smaller than the distance between the feeding point 3 and the resonant position. For example, the two dotted arrows on the left side of FIG1 can be regarded as the conduction direction of the radio frequency wave of the second antenna. The intersection of the two dotted arrows can be regarded as the resonant position. In the left-right direction, the distance between the second grounding point 5 and the resonant position is smaller than the distance between the feeding point 3 and the resonant position.

Therefore, compared with the prior art in which RF wave conduction is achieved only through the feeding point 3, the introduced second grounding point 5 changes the grounding position of the current, shortens the overall current path between the feeding point and the resonance position on the circuit board 1, and plays a role in suppressing the current. Compared with the original loop antenna (the antenna formed by the feeding point 3, the first radiator 22, and the circuit board 1), the radiation of the new radiation mode (LOOP mode) can move to a high frequency, so that the antenna assembly has better radiation performance, further meeting the use needs of the layout in a limited space.

In some embodiments, the feed point 3 is located between the first ground point 4 and the second ground point 5, and the break 21 and the first ground point 4 are located on the same side of the feed point 3. For example, as shown in FIG1 and FIG2, the break 21 and the first ground point 4 can be located on the right side of the feed point 3, and the second ground point 5 can be located on the left side of the feed point 3. Thus, the first antenna and the second antenna are relatively independent in structure, ensuring the reliability and stability of their respective operations.

In some embodiments, the circuit board 1 is provided with a first support point 11 and a second support point 12, and the second grounding point 5 is provided between the first support point 11 and the second support point 12. The first support point 11 and the second support point 12 can be regarded as support points for supporting the circuit board 1. As shown in FIG2 , the first support point 11 can be provided on the left side of the second grounding point 5, and the second support point 12 can be provided on the right side of the second grounding point 5. The second grounding point 5 is provided between the two support points to ensure the structural stability of the installation of the second grounding point 5.

In some embodiments, the connection between the feed point 3 and the circuit board 1 and the connection between the first ground point 4 and the circuit board 1 are both adjacent to the second support point 12. For example, as shown in FIG2 , the connection between the feed point 3 and the circuit board 1 may be a first connection, and the connection between the first ground point 4 and the circuit board 1 may be a second connection. The first connection and the second connection may be integrated into one connection position, and the connection position may be adjacent to the second support point 12, and the second support point 12 may be used to ensure the structural stability of the connection.

The electronic device according to the embodiment of the present utility model is described below.

The electronic device of the embodiment of the utility model includes an antenna assembly, and the antenna assembly can be the antenna assembly described in any of the above embodiments. The electronic device can be a mobile phone, and the mobile phone includes a middle frame 2, and the circuit board 1 is arranged in the middle frame 2, and at least part of the middle frame 2 forms a radiator (a first radiator 22 and a second radiator 23) of the antenna assembly. In some other embodiments, the electronic device can also be an electronic device with communication function such as a tablet computer and an electronic watch.

In the antenna assembly of the electronic device of the embodiment of the utility model, when the first grounding point 4 is not introduced, the antenna and the feeding point 3 are connected. Since the surrounding current has no grounding point, the current does not have a complete path to the ground. At this time, the structure has no 1/4 mode. After the first grounding point 4 is introduced, since the current around the feeding point 3 is strong, the current can be grounded through the first grounding point 4 to the photosensitive board according to the principle of grounding nearby. At this time, a current path is constructed from the antenna (second radiator 23) to the feeding point 3 and then to the first grounding point 4, thereby forming a new 1/4 mode radiation mode, which is mainly for the 5GHz to 6GHz frequency band.

When the first grounding point 4 and the second grounding point 5 are not introduced, the antenna radiation mode of the existing electronic device is only the LOOP mode, and the antenna efficiency of this mode is shown by the dotted line in Figure 4 (curve A in Figure 4). When the second grounding point 5 is introduced, the second grounding point 5 changes the location of the current, suppresses the current between the first support point 11 and the second support point 12, shortens the overall path of the current, and forms a new LOOP mode that moves to high frequency. At this time, the antenna efficiency is shown by the dotted line in Figure 4 (curve B in Figure 4).

When the first grounding point 4 is introduced, a 1/4 mode can be constructed between the first grounding point 4, the feeding point 3 and the antenna. The corresponding antenna efficiency is shown as the solid line in Figure 4 (curve C in Figure 4), and the radiation capability of the antenna is further improved.

Specifically, as shown in FIG4 , after the second grounding point 5 is introduced into the antenna assembly of the electronic device of the utility model, the lowest point of the antenna efficiency in the frequency range of 5 GHz to 6 GHz is improved by about 4 dB by comparing the curve A and the curve B in FIG4 . After the first grounding point 4 is further introduced, the overall antenna efficiency in the range of 5 GHz to 6 GHz is improved by 2 dB to 3 dB by comparing the curve B and the curve C in FIG4 .

The antenna assembly of the electronic device of the embodiment of the utility model changes the position of the location under the current, has a higher antenna performance in a limited space, and meets the use needs of communication under the highly integrated and extreme stacking of existing electronic devices.

Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims (11)

1. An antenna assembly, comprising: Circuit boards; A first radiator and a second radiator, wherein a gap is provided between the first radiator and the second radiator; A feeding point is provided on the first radiator, and the feeding point is used to connect to a feeding potential on the circuit board; A first grounding point is provided on the circuit board area corresponding to the second radiator, and the circuit board is grounded through the first grounding point; The circuit board includes a first routing segment, and the first routing segment connects the feed potential and the first ground point. 2 . The antenna assembly according to claim 1 , characterized in that it comprises a functional component, wherein the first grounding point is connected to the functional component and is grounded through the functional component. 3. The antenna assembly according to claim 2, wherein the functional component comprises: Sensor components, or audio components, or shielding cover components. 4 . The antenna assembly according to claim 2 , wherein the functional component comprises an elastic portion, the elastic portion is elastically deformable and connected to the circuit board. 5 . The antenna assembly according to claim 1 , wherein the second radiator, the first ground point, the first routing segment, and the feeding point are constructed as an antenna, and a length of the antenna corresponds to a quarter wavelength or a half wavelength mode. 6. The antenna assembly according to any one of claims 1-5 is characterized in that the circuit board includes a second grounding point, the second grounding point is arranged on the side of the feeding potential away from the break, the circuit board is grounded through the second grounding point, and the circuit board includes a second routing segment, and the second routing segment connects the feeding potential and the second grounding point. 7 . The antenna assembly according to claim 6 , wherein the feeding point is located between the first grounding point and the second grounding point, and the break and the first grounding point are located on the same side of the feeding point. 8. The antenna assembly according to claim 6, characterized in that the circuit board is provided with a first supporting point and a second supporting point, and the second grounding point is provided between the first supporting point and the second supporting point. 9 . The antenna assembly according to claim 8 , wherein a connection point between the feed point and the circuit board and a connection point between the first ground point and the circuit board are both adjacent to the second supporting point. 10. An electronic device, characterized by comprising the antenna assembly according to any one of claims 1 to 9. 11. The electronic device according to claim 10, characterized in that the electronic device is a mobile phone, the mobile phone comprises a middle frame, the circuit board is arranged in the middle frame, and the first radiator and the second radiator are integrated in the middle frame.