CN217768749U - Antenna assembly and terminal equipment - Google Patents

Abstract

The utility model discloses an antenna module and terminal equipment, the antenna module includes metal frame and conductive piece, the metal frame includes annular portion, first irradiator, second irradiator and breaking joint, first irradiator with the second irradiator is located annular portion, annular portion includes first portion and the second part that sets up along the first direction, the breaking joint is located the first portion, and first irradiator with the second irradiator is located the relative both sides of breaking joint in the first direction; the conductive piece is arranged in the second part, and two opposite side walls of the annular part in the second direction are electrically connected through the conductive piece; wherein the second direction intersects the first direction. The utility model discloses antenna module has advantages such as radiation efficiency height.

Description

Antenna assembly and terminal equipment

Technical Field

The utility model relates to an antenna technology field, concretely relates to antenna module and terminal equipment.

Background

At present, as the terminal devices (such as mobile phones) are stacked more compactly, a situation of structural multiplexing may occur, for example, a part of the antenna headroom of the antenna is used as a sound output channel of audio, and in order to meet the sound output requirement of audio, a part of metal of the antenna needs to be excavated so that the sound output channel is large enough. The above-mentioned structural multiplexing condition may result in lengthening the return path of the antenna, resulting in a reduction in the radiation efficiency of the antenna.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the present invention provides an antenna assembly to improve the radiation efficiency of the antenna.

The utility model discloses antenna module of embodiment includes metal frame and conductive piece, and the metal frame includes annular portion, first irradiator, second irradiator and breaking joint, first irradiator with the second irradiator is located annular portion, annular portion includes first portion and the second part that sets up along the first direction, the breaking joint is located first portion, and first irradiator with the second irradiator is located the relative both sides of breaking joint in the first direction; the conductive piece is arranged in the second part, and two side walls of the annular part opposite to each other in the second direction are electrically connected through the conductive piece; wherein the second direction intersects the first direction.

The utility model discloses antenna module through set up electrically conductive piece in the second part, utilizes electrically conductive piece to realize the electricity of the relative both sides wall in the second direction of annular portion for a part of electric current of first irradiator and/or second irradiator can return ground through electrically conductive piece, thereby can shorten the route of returning ground of a part of electric current of the irradiator of antenna module, and then can improve the radiation efficiency of antenna module. Therefore, the utility model discloses antenna module has advantages such as radiation efficiency height.

In some embodiments, the annular portion forms a sound outlet channel for communicating with a sound cavity, a portion of the second radiator is provided at the second portion, the portion of the second radiator has a first sound outlet through hole extending in the second direction, the first sound outlet through hole communicates with the sound outlet channel, and the conductive member and the first sound outlet through hole are arranged in a staggered manner.

In some embodiments, the number of the first sound outlet through holes is multiple, the first sound outlet through holes are arranged at intervals along the first direction, and the conductive member is arranged between two adjacent first sound outlet through holes.

In some embodiments, a size of the conductive member in the first direction is smaller than or equal to a minimum spacing between two adjacent first sound outlet through holes; and/or the dimension of the conductive piece in a third direction is larger than or equal to the dimension of the metal frame in the third direction, wherein the third direction is orthogonal to the second direction and the first direction.

In some embodiments, another portion of the second radiator is disposed on the first portion, and the another portion of the second radiator has a second sound outlet through hole extending along the second direction, and the second sound outlet through hole is communicated with the sound outlet channel.

In some embodiments, one end of the second portion in a third direction is open, and the other end of the second portion in the third direction is closed, and the third direction is orthogonal to the second direction and the first direction.

In some embodiments, the conductive members are conductive strips.

In some embodiments, the conductive member and the metal frame are a unitary structure.

In some embodiments, the antenna assembly is an IFA antenna.

The utility model discloses terminal equipment includes above-mentioned arbitrary embodiment the antenna module.

In some embodiments, the terminal device includes a middle frame, a portion of which forms the antenna assembly.

Drawings

Fig. 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present invention.

Fig. 2 is another schematic structural diagram of an antenna assembly according to an embodiment of the present invention.

Fig. 3 is a ground return current diagram when no conductive member is provided in the loop portion of the antenna in the related art.

Figure 4 is a ground return current flow diagram for an antenna assembly of one embodiment of the present invention.

Fig. 5 is a graph comparing the resonance effect of the antenna assembly of an embodiment of the present invention and the prior art antenna.

Fig. 6 is a graph comparing the radiation efficiency of an antenna assembly according to an embodiment of the present invention with that of a prior art antenna.

Reference numerals are as follows:

an antenna assembly 100;

a metal frame 1; a first portion 101; a second portion 102; a broken seam 103; a retaining wall 104; a first side wall 105; a first radiator 1051; the second radiator 1052; a first sound outlet through hole 1053; a second sound outlet through hole 1054; a second sidewall 106;

a conductive member 2;

a middle frame 10; a main body 1001; a frame 1002.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, an antenna assembly 100 according to an embodiment of the present invention includes a metal frame 1 and a conductive member 2, where the metal frame 1 includes a ring portion, a slit 103, a first radiator 1051 and a second radiator 1052, and the first radiator 1051 and the second radiator 1052 are disposed in the ring portion. The annular portion includes a first portion 101 and a second portion 102 arranged along a first direction, the slit 103 is arranged in the first portion 101, and the first radiator 1051 and the second radiator 1052 are arranged on opposite sides of the slit 103 in the first direction. The conductive member 2 is provided in the second portion 102, and both side walls of the annular portion opposite in the second direction are electrically connected by the conductive member 2. Wherein the second direction intersects the first direction.

For example, the annular portion has a first sidewall 105 and a second sidewall 106 oppositely disposed along the second direction, the slit 103 is disposed on the first sidewall 105, the first radiator 1051 and the second radiator 1052 are both disposed on the first sidewall 105, and the second sidewall 106 has a return point. The first sidewall 1021 and the second sidewall 1022 are electrically connected through the conductive member 2, so that the first radiator 1051 and/or the second radiator 1052 is electrically connected to the ground return point of the second sidewall 106, thereby realizing the ground return of the current of the first radiator 1051 and/or the second radiator 1052.

The antenna assembly 100 may be a bezel antenna. The metal frame 1 can be understood as: the structural skeleton of the antenna, for example, the metal frame 1, is formed by processing a metal plate. The second direction intersecting the first direction may be understood as: the second direction is perpendicular to the first direction, or an included angle between the second direction and the first direction is an acute angle.

It is understood that the annular portion can be communicated with the outer surface of the metal frame 1 through the break 103, that is, the annular portion is communicated with the outside through the break 103. The first part 101 may serve as a feeding system for an antenna, which may perform transmission of waves, such as 5G millimeter waves, through the broken seam 103. Since the first portion 101 and the second portion 102 are both part of the ring-shaped portion, the first portion 101 communicates with the second portion 102.

In the related art, the radiator (parasitic stub) of the bezel antenna usually goes back to the ground through the sidewall of the hollow portion. When the hollow part is increased in size due to multiplexing (for example, used as a sound outlet channel of a sound cavity), the return path of at least a part of the radiator of the antenna is correspondingly lengthened, and the radiation efficiency of the antenna is reduced

The utility model discloses antenna module 100 is through locating first portion 101 with break joint 103, and the relative both sides of break joint 103 are located to first irradiator 1051 and second irradiator 1052 in the first direction for first portion 101 forms antenna clearance of antenna module 100. The presence of the second portion 102, on the one hand, allows the size of the loop to be large to meet multiplexing (e.g., use as an outbound channel) requirements, and, on the other hand, results in lengthening the ground path of the first radiator 1051 and/or the second radiator 1052. By providing the conductive member 2 in the second portion 102, as shown in fig. 4, the conductive member 2 is used to electrically connect the two opposite side walls of the loop portion in the second direction, so that a part of the current of the first radiator 1051 and/or the second radiator 1052 can return to the ground through the conductive member 2, thereby shortening the return path of a part of the current of the radiator of the antenna assembly 100 and further improving the radiation efficiency of the antenna assembly 100.

It is understood that, as shown in fig. 1, 2 and 4, when the second radiator 1052 is disposed closer to the second portion 102 than the first radiator 1051 in the first direction, a return path of a portion of current of the second radiator 1052 may be shortened by disposing the conductive member 2 in the second portion 102. When the first radiator 1051 is disposed closer to the second portion 102 in the first direction with respect to the second radiator 1052, a return path of a portion of the current of the first radiator 1051 may be shortened by disposing the conductive member 2 in the second portion 102. When the first portion 101 has the second portions 102 at both sides in the first direction and each of the second portions 102 has the conductive member 2 provided therein, a part of the current of the first radiator 1051 and the second radiator 1052 may return to the ground through the adjacent conductive members 2, respectively, so that the return current of the first radiator 1051 and the second radiator 1052 may be shortened.

Therefore, the utility model discloses antenna module has advantages such as radiation efficiency height.

Alternatively, the Antenna assembly 100 is an IFA (Inverted-F Antenna) Antenna.

In order to make the technical solution of the present application easier to understand, the following further describes the technical solution of the present application by taking as an example that the first direction coincides with the X direction and the second direction coincides with the Y direction. Wherein the X-direction and the Y-direction are as shown in fig. 1.

For example, as shown in fig. 1, the second portion 102 is located at one side of the first portion 101 in the X direction, the first radiator 1051, the slit 103, and the second radiator 1052 are sequentially arranged in the X direction, and the second radiator 1052 is disposed more adjacent to the second portion 102 with respect to the first radiator 1051. The annular portion has a first sidewall 1021 and a second sidewall 1022 which are oppositely arranged along the Y direction, the first radiator 1051, the slit 103, and the second radiator 1052 are all arranged on the first sidewall 1021, and the first sidewall 1021 and the second sidewall 1022 are electrically connected through the conductive member 2 in the second portion 102.

Optionally, one end of the second portion 102 in the third direction is open and the other end is closed.

In order to make the technical solution of the present application easier to understand, the following further describes the technical solution of the present application by taking the third direction as an example, which is consistent with the Z direction. Wherein the Z direction is as shown in fig. 1.

For example, as shown in fig. 2, the metal frame 1 includes a blocking wall 104, the blocking wall 104 blocks one end of the second portion 102 in the Z direction, and an end of the second portion 102 away from the blocking wall 104 is open, and the open end of the second portion 102 is used for communicating with the speaker. The blocking wall 104 is configured such that a part of the current of the radiator (e.g., the second radiator 1052) can return to the ground through the blocking wall 104, so that the return path of a part of the radiator of the antenna can be shortened, and the radiation efficiency of the antenna assembly 100 can be further improved.

In addition, by making the second portion 102 open at one end and closed at the other end, the first sidewall 105 and the second sidewall 106 can be connected by the closed end of the second portion 102, so that the structural strength of the second portion 102 can be improved, which is favorable for improving the structural strength of the antenna assembly 100.

Optionally, the conductive member 2 is a conductive strip.

For example, as shown in fig. 2, the conductive member 2 is a conductive strip with a rectangular cross section.

By arranging the conductive member 2 as a conductive strip, on one hand, the processing and manufacturing of the conductive member 2 are facilitated; on the other hand, the conductive strips connected to the first sidewall 1021 and the second sidewall 1022 may increase the structural strength of the second portion 102, which is beneficial for increasing the structural strength of the antenna assembly 100.

Of course, in other embodiments, the conductive member 2 may also be a conductive sheet or the like.

Alternatively, the conductive member 2 and the metal frame 1 are of a unitary structure.

By adopting the conductive member 2 and the metal frame 1 as an integrated structure, the antenna assembly 100 is convenient to process and manufacture, and the structural strength of the antenna assembly 100 is improved.

In some embodiments, the annular portion forms a sound outlet channel for communicating with the sound cavity. A portion of the second radiator 1052 is disposed on the second portion 102, the portion of the second radiator 1052 has a first sound outlet through hole 1053 extending along the second direction, the first sound outlet through hole 1053 is communicated with the sound outlet channel, and the conductive member 2 and the first sound outlet through hole 1053 are arranged in a staggered manner.

For example, a portion of the second radiator 1052 is disposed on the first portion 101, and another portion of the second radiator 1052 is disposed on the second portion 102. Specifically, the second radiator 1052 includes a first radiation portion and a second radiation portion, the first radiation portion is disposed on the first portion 101, and the second radiation portion is disposed on the second portion 102. The second radiating portion has a first sound outlet through hole 1053 extending in the Y direction.

The ring-shaped portion forms a sound outlet channel for communicating with the sound chamber, i.e. the first portion 101 and the second portion 102 each form part of the sound outlet channel.

The use of the annular portion to form the sound outlet channel for communication with the sound cavity allows the antenna to be used while being clear as part of the sound outlet channel of the speaker, which is advantageous for improving the structural compactness of the terminal device having the antenna assembly 100.

By arranging the conductive member 2 and the first sound outlet through hole 1053 in a staggered manner, the conductive member 2 can be prevented from blocking the first sound outlet through hole 1053, and the sound outlet effect of the speaker can be prevented from being affected.

Optionally, the first radiation portion has a second sound outlet through hole 1054 extending in the second direction (Y direction), the second sound outlet through hole 1054 communicating with the sound outlet channel.

By providing the second sound outlet through hole 1054 on the portion of the second radiator 1052 disposed on the first portion 101, the number of sound outlet through holes communicating with the sound outlet channel is large, which is beneficial to the sound signal of the speaker to propagate to the outside through the sound outlet through holes. In addition, the second sound outlet through hole 1054 and the first sound outlet hole 1053 are disposed on the same side of the slit 103, so as to prevent the second sound outlet through hole 1054 and the first sound outlet hole 1053 from affecting the performance of the antenna.

Alternatively, the number of the first sound outlet through holes 1053 is plural, the first sound outlet through holes 1053 are arranged at intervals along the first direction (X direction), and the conductive member 2 is arranged between two adjacent first sound outlet through holes 1053.

Through the first sound through holes 1053 arranged at a plurality of intervals, it is convenient for the sound signal of the speaker to be transmitted to the outside through the sound through holes, and at the same time, it is advantageous to improve the structural strength of the second portion 102, thereby being advantageous to improve the structural strength of the antenna assembly 100.

Alternatively, the size of the conductive member 2 in the first direction (X direction) is smaller than or equal to the minimum spacing between two adjacent first sound outlet through holes 1053.

For example, the size of the conductive member 2 in the X direction is equal to the minimum distance between two adjacent first sound outlet through holes 1053.

Therefore, while the conductive member 2 is prevented from blocking the first sound outlet through hole 1053, the size of the conductive member 2 in the X direction can be maximized, which is beneficial to increase the connection area between the conductive member 2 and the first and second side walls 1021 and 1022, thereby not only being beneficial to shortening more grounding paths of the radiator of the antenna, but also further improving the radiation efficiency of the antenna; but also contributes to further improving the structural strength of the antenna assembly 100.

Optionally, the dimension of the conductive member 2 in a third direction (Z direction) is greater than or equal to the dimension of the metal frame 1 in the third direction, wherein the third direction is orthogonal to the second direction and the first direction.

For example, the dimension of the conductive member 2 in the Z direction is equal to the dimension of the metal frame 1 in the Z direction.

Therefore, the connection area between the conductive member 2 and the first sidewall 1021 and the second sidewall 1022 is increased, which is beneficial to shortening more grounding paths of the radiator of the antenna and further increasing the radiation efficiency of the antenna; but also contributes to further improving the structural strength of the antenna assembly 100.

The antenna assembly 100 of the embodiment of the present invention can shorten the ground return path of the radiator of the antenna by providing the conductive member 2 in the second portion 102 of the annular portion. As shown in fig. 3 and 4, after the conductive member 2 is added, the ground return current on the side of the conductive member 2 far from the first portion 101 is significantly reduced, the ground return path is significantly shortened, and the ground return current is more concentrated at the position near the broken seam 103 side. Naturally, it is advantageous to increase the radiation efficiency of the second radiator 1052 (radiating from parasitic branches), for example in the N77/N79 frequency band. Although the sound outlet channel is also reduced along with the addition of the conductive member 2, the influence is extremely small, and the sound outlet effect of the loudspeaker is not obviously influenced.

It can be understood that the design of the metal frame 1 can also be generalized to the case that other annular portions need to be demetallized and the antenna clearance needs to be demetallized, that is, the conductive member 2 is arranged on the non-antenna clearance side of the annular portion, so as to meet the requirements of antenna demetallization and annular portion demetallization.

From the simulation effect, as shown in fig. 5, the addition of the conductive member 2 can shorten the length of the parasitic branch to some extent, and slightly push up the resonance 2/3. Meanwhile, the bandwidth in N77 and N79 frequency bands (resonance 2/3) is improved because the shortened resonance of the return path is naturally deepened.

From the simulation efficiency, as shown in fig. 6, the total efficiency of the resonance 2 is slightly improved, the improvement can be about 1.7dB around 3.9GHz of an N77 high channel, and the bandwidths of the N77 and the N79 are optimized to different degrees.

The utility model discloses antenna module 100 has following advantage:

the requirement for sound emission of the audio frequency and the requirement for adjusting the length of the parasitic branch of the antenna are taken into consideration, and specifically, a designer can adjust the length of the parasitic branch by adjusting the distance between the conductive piece 2 and the broken seam 103;

the bandwidth of the antenna is increased, and the radiation efficiency of the antenna is improved.

The terminal equipment of the embodiment of the utility model comprises the antenna assembly 100 of any one of the above embodiments.

The terminal device can be a mobile phone, a tablet computer or a notebook computer.

Because antenna module 100's radiation efficiency is high, consequently the utility model discloses terminal equipment's performance is better.

In some embodiments, the terminal device includes a middle frame 10, a portion of the middle frame 10 forming the antenna assembly 100.

For example, as shown in fig. 1 and 2, the middle frame 10 includes a body 1001 and a bezel 1002, the bezel 1002 is disposed around the body 1001, the bezel 1002 and a portion of the body 1001 are disposed at an interval to form a ring portion, the first radiator 1051 and the second radiator 1052 are respectively formed by a portion of the bezel 1002, and the second sidewall 106 is formed by a portion of the body 1001.

In use, the first and second portions 101, 102 cooperate with the screen to form a sound outlet channel in communication with the sound chamber.

The metal frame 100 is formed by a portion of the middle frame 10, which is advantageous for simplifying the overall structure of the terminal device, not only facilitating the assembly of the terminal device, but also facilitating the lightweight design of the terminal device.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims (11)

1. An antenna assembly, comprising:

the metal frame comprises an annular part, a broken joint, a first radiator and a second radiator, wherein the first radiator and the second radiator are arranged on the annular part, the annular part comprises a first part and a second part which are arranged along a first direction, the broken joint is arranged on the first part, and the first radiator and the second radiator are arranged on two opposite sides of the broken joint in the first direction;

the conductive piece is arranged in the second part, and two side walls of the annular part, which are opposite to each other in the second direction, are electrically connected through the conductive piece;

wherein the second direction intersects the first direction.

2. The antenna assembly of claim 1, wherein the annular portion forms a sound exit channel for communication with a sound cavity, a portion of the second radiator is provided at the second portion, the portion of the second radiator has a first sound exit through hole extending in the second direction, the first sound exit through hole communicates with the sound exit channel, and the conductive member and the first sound exit through hole are arranged offset from each other.

3. The antenna assembly of claim 2, wherein the number of the first sound emitting through holes is plural, the plural first sound emitting through holes are arranged at intervals along the first direction, and the conductive member is arranged between two adjacent first sound emitting through holes.

4. The antenna assembly of claim 3, wherein the dimension of the conductive member in the first direction is smaller than or equal to the minimum spacing between two adjacent first sound outlet through holes; and/or

The size of the conductive piece in a third direction is larger than or equal to that of the metal frame in the third direction, wherein the third direction is orthogonal to the second direction and the first direction.

5. The antenna assembly of claim 2, wherein another portion of the second radiator is disposed on the first portion, the another portion of the second radiator having a second sound exit via extending in the second direction, the second sound exit via communicating with the sound exit channel.

6. The antenna assembly of any one of claims 1-3, wherein one end of the second portion in a third direction is open and the other end of the second portion in the third direction is closed, the third direction being orthogonal to the second direction and the first direction.

7. The antenna assembly of any one of claims 1-5, characterized in that the conductive elements are conductive strips.

8. The antenna assembly of any one of claims 1-5, wherein the conductive member and the metal frame are a unitary structure.

9. The antenna assembly of any one of claims 1-5, characterized in that the antenna assembly is an IFA antenna.

10. A terminal equipment characterized by comprising an antenna assembly according to any one of claims 1-9.

11. A terminal device according to claim 10, characterised in that the terminal device comprises a middle frame, a part of which forms the antenna component.

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