Antenna components and terminal equipment

Abstract

The present invention provides an antenna assembly and a terminal device, wherein an antenna assembly comprises: a first antenna and a second antenna coupled to the first antenna, the first antenna and the second antenna have different operating frequency bands, the first antenna is connected to a signal source and a ground respectively, a groove is provided on the first antenna, at least part of the second antenna is inserted through the groove and connected to the ground, and a certain distance is provided between the second antenna and the inner wall of the groove. The present invention provides an antenna assembly and a terminal device, wherein the antenna assembly occupies a small space, the coupling energy obtained by the second antenna per unit volume is higher, the terminal device applied to the antenna assembly is thinner, and the signal reception and transmission are better.

Description

Technical Field

[0001] The present invention relates to the field of wireless communications, and in particular to an antenna assembly and a terminal device. Background Art

[0002] In current mobile phones, e-books / tablet computers, laptop computers and / or other wireless communication devices, electromagnetic signals in a specific frequency band are generally transmitted and received via antennas.

[0003] Among them, built-in antennas are widely used in wireless communication products due to their small size, light weight, good omnidirectionality, and stable electrical characteristics. Existing wireless communication devices often have to be equipped with multiple antennas (for example, WiFi antennas, GPS antennas, etc.) to support various communication functions.

[0004] Although there are some built-in multi-frequency antennas now, these antennas are either complex in structure or the frequency band is not easy to adjust, or the frequency band is not wide enough. Most importantly, the antenna layout structure is rigid and relatively large in size, which makes it impossible to miniaturize the antenna. Summary of the invention

[0005] The embodiments of the present invention provide an antenna assembly and a terminal device to solve the problem that the multi-frequency antenna has a complex structure and a large volume.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] One aspect of an embodiment of the present invention provides an antenna assembly, including: a first antenna and a second antenna coupled to the first antenna, the first antenna and the second antenna have different operating frequency bands, the first antenna is respectively connected to a signal source and a ground, a groove is provided on the first antenna, at least a portion of the second antenna is inserted into the groove and connected to the ground, and a certain distance is provided between the second antenna and the inner wall of the groove.

[0008] In one possible implementation manner, the groove is opened at a position of the first antenna close to the signal source.

[0009] In one possible implementation manner, the second antenna includes a parallel section and an insertion section, the parallel section is parallel to the first antenna, the insertion section is bent relative to the parallel section, and the insertion section is inserted into the groove.

[0010] In one possible implementation, the parallel section includes a first part and a second part, the first part and the second part are respectively connected to two ends of the insertion section, and the first part and the second part are respectively bent relative to the two ends of the insertion section.

[0011] In one possible implementation manner, the first part and the second part are arranged in parallel or at an angle.

[0012] In one possible implementation manner, the cross section of the groove is closed.

[0013] A terminal device comprises a shell, wherein a support member is arranged inside the shell, and the antenna assembly as described in any one of the above items is connected to the support member.

[0014] In one possible implementation, a limiting hole is opened on the support member, the portion of the first antenna having the groove is connected to the support member, the projection of the limiting hole is located in the groove, and at least a portion of the second antenna is passed through the limiting hole and the groove.

[0015] In one possible implementation, the support member includes a planar segment, at least part of the first antenna and at least part of the second antenna are connected to one side of the planar segment, and a portion of the first antenna having the groove is connected to the other side of the planar segment.

[0016] In one possible implementation manner, at least a portion of the second antenna is connected to the inner wall of the shell, and a distance is provided between the first antenna connected to the support member and a portion of the second antenna connected to the inner wall of the shell.

[0017] The antenna assembly and terminal device provided by the present invention provide a groove on the first antenna, and at least a part of the second antenna passes through the groove, so that the second antenna located in the groove is coupled with the first antenna at the groove, and the height of the first antenna in the longitudinal direction is used to reduce the width and length of the second antenna, thereby reducing the size of the space occupied by the antenna assembly. The coupling energy obtained by the second antenna per unit volume is higher, and the terminal device applied to the antenna assembly is thinner, and the signal reception and transmission are better.

[0018] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 A cross-sectional view of an antenna assembly in the prior art;

[0021] Figure 2 is a cross-sectional view of an antenna assembly provided according to an exemplary embodiment;

[0022] Figure 3 is a graph showing the relationship between antenna radiation efficiency and frequency, wherein a solid line represents an antenna assembly, a dotted line represents a first antenna, and the unit of antenna radiation efficiency is dB;

[0023] Figure 4 is a graph showing the relationship between return loss and frequency, wherein a solid line represents an antenna assembly and a dotted line represents a first antenna;

[0024] Figure 5 is an impedance circle diagram, wherein the solid line represents the antenna assembly, the dotted line represents the first antenna, wherein points 1 and 2 represent the antenna assembly, and points 3 and 4 represent the first antenna;

[0025] Figure 6 is a cross-sectional view of another antenna assembly provided according to an exemplary embodiment;

[0026] Figure 7 is a cross-sectional view of yet another antenna assembly provided according to an exemplary embodiment;

[0027] Figure 8 A three-dimensional diagram of a connection between a first antenna and a support member provided according to an exemplary embodiment;

[0028] Fig. 9 A cross-sectional view of a connection between an antenna assembly and a support member provided according to an exemplary embodiment;

[0029] Fig.10 A cross-sectional view of another connection between an antenna assembly and a support member provided according to an exemplary embodiment.

[0030] Description of reference numerals:

[0031] 1-first antenna; 11-groove; 12-horizontal section; 121-upper section; 122-lower section; 13-vertical section; 2-second antenna; 21-parallel section; 211-first part; 212-second part; 22-insertion section; 3-housing; 4-support member; 41-limiting hole; 42-plane section; 43-mounting hole; 101-excitation unit; 102-first parasitic unit; 103-second parasitic unit.

[0032] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] Figure 1 A cross-sectional view of an antenna assembly in the prior art is shown. Figure 1 As shown, the existing antenna assembly includes an excitation unit 101, a first parasitic unit 102 and a second parasitic unit 103 of different working frequency bands, the first parasitic unit 102 and the second parasitic unit 103 are respectively placed parallel to the plane of the excitation unit 101, the excitation unit 101 is respectively connected to the signal source and the ground, and the first parasitic unit 102 and the second parasitic unit 103 are connected to the ground. The excitation unit 101 is coupled with the first parasitic unit 102 or the second parasitic unit 103, so that the first parasitic unit 102 and the second parasitic unit 103 generate an induced current, thereby realizing multi-frequency.

[0036] from Figure 1 It can be seen from the figure that after adding the first parasitic unit 102 and the second parasitic unit 103, the height, length and width of the antenna assembly change, and the volume of the antenna assembly increases, resulting in an increase in the volume of the terminal device, making it difficult to achieve the miniaturization requirement of the terminal device. In summary, without changing the length of the first parasitic unit 102 or the second parasitic unit 103, reducing the overall volume of the antenna assembly is the problem to be solved in this application.

[0037] Embodiment 1

[0038] Figure 2 is a cross-sectional view of an antenna assembly provided according to an exemplary embodiment, such as Figure 2 As shown, this embodiment provides an antenna assembly, including a first antenna 1 and a second antenna 2 coupled to the first antenna 1, the first antenna 1 and the second antenna 2 have different operating frequency bands, the first antenna 1 is connected to a signal source and a ground respectively, a groove 11 is provided on the first antenna 1, at least a portion of the second antenna 2 is passed through the groove 11 and connected to the ground, and a certain distance is provided between the second antenna 2 and the inner wall of the groove 11.

[0039] Specifically, antennas are divided into two categories according to their structural forms: one is a linear antenna composed of a metal wire whose radius is much smaller than the wavelength, and the other is a planar antenna composed of a metal or dielectric surface whose size is larger than the wavelength. Planar antennas are often used for terminal devices. Therefore, the first antenna 1 can be arranged in a planar shape, and the first antenna 1 can have a certain thickness.

[0040] Specifically, the working frequency of the antenna is the frequency at which the antenna receives and transmits electromagnetic waves, and the first antenna 1 and the second antenna 2 can receive or transmit electromagnetic waves of different frequency bands. Optionally, the first antenna 1 and the signal source can be connected via a feeder, and a matching device can be connected to the feeder to adjust impedance and resonance. The matching device includes but is not limited to an attenuator, an isolator, and a matcher.

[0041] Among them, the first antenna 1 is equivalent to the equivalent load of the feeder terminal. In order to maximize the power transmission, the matcher can be used to match the input impedance (i.e., the equivalent load impedance) with the characteristic impedance of the feeder, thereby reducing the reflected power and maximizing the transmission power. The matcher couples the energy from the signal source to a load, such as a processing chamber. This load is a variable impedance, and its impedance changes with the operation of the processing in the processing chamber. The matcher can automatically detect the condition of this load and maximize the power coupled to the processing chamber by adjusting the position of the tuning element inside it. In this way, the power reflected back to the signal source is minimized.

[0042] Optionally, the first antenna 1 may be directly connected to the ground, and an electronic component may be connected between the first antenna 1 and the ground to adjust impedance and resonance.

[0043] Specifically, the axial direction of the groove 11 is parallel to or coincides with the axial direction of the first antenna 1, and the cross-sectional shape of the groove 11 can be rectangular, circular or other phases. The present application does not specifically limit the cross-sectional shape of the groove 11. Optionally, an electronic component can be connected between the second antenna 2 and the ground to adjust impedance and resonance.

[0044] Specifically, the second antenna 2 can be arranged in a planar shape, and the cross-sectional area of ​​the second antenna 2 is smaller than the cross-sectional area of ​​the first antenna 1. One end of the second antenna 2 is used to receive or transmit signals, and the other end of the second antenna 2 is inserted into the groove 11 and connected to the ground. The second antenna 2 does not contact the first antenna 1. After the second antenna 2 is inserted into the groove 11 of the first antenna 1, the surface of the second antenna 2 located in the groove 11 and the groove wall of the groove 11 can be arranged in parallel. The energy of the first antenna 1 in the groove 11 is coupled to the second antenna 2, so that an induced current flows through the second antenna 2, so that the antenna assembly achieves a multi-frequency effect.

[0045] The second antenna 2 is coupled to the inner wall of the groove 11, and the area of ​​the second antenna 2 per unit length coupled to the inner wall of the groove 11 is greater than the area of ​​the first parasitic unit 102 per unit length coupled to the excitation unit 101 in the prior art. Exemplarily, the groove 11 is arranged in a rectangular shape, and the antenna extends into the groove 11, and then the four sides of the groove 11 are coupled to the antenna. In the prior art, only one side of the first parasitic unit 102 and the excitation unit 101 is coupled, so the arrangement of opening the groove 11 and inserting the second antenna 2 is adopted, and the coupling energy obtained is higher, the coupling effect is better, and it is more conducive to inducing the induced current on the second antenna 2.

[0046] More specifically, Figure 3 : is a graph showing the relationship between antenna radiation efficiency and frequency, where the solid line represents the antenna assembly, the dotted line represents the first antenna 1, and the unit of antenna radiation efficiency is dB. It should be understood that antenna efficiency refers to the ratio of the power radiated by the antenna (i.e., the power of the electromagnetic wave part that is effectively converted) to the active power input to the antenna. Figure 3 It can be seen that the antenna radiation efficiency (dB) is a negative value, and the solid line is above the dotted line, so the radiation efficiency of the antenna assembly is higher than the radiation efficiency of the first antenna 1.

[0047] In addition, the second antenna 2 is inserted into the groove 11 of the first antenna 1 and extends out of the first antenna 1 and is connected to the ground. In this way, the second antenna 2 is equivalent to having a positive pole and a negative pole, and one end of the negative pole is connected to the ground. For the first antenna 1, it is equivalent to the effect of a parallel capacitor. Since the capacitor can adjust the impedance and resonance, the second antenna 2 has the effect of adjusting the impedance and resonant frequency of the first antenna 1, thereby reducing the use and loss of tuning elements in the matcher.

[0048] More specifically, Figure 4 is a graph showing the relationship between return loss and frequency, where the solid line represents the antenna assembly and the dotted line represents the first antenna 1. It should be understood that when the input impedance of the antenna (i.e., the ratio of the input voltage to the input current at the antenna's feed end) and the characteristic impedance of the feed line are not equal (mismatched), a portion of the energy input from the signal source to the antenna through the feed line is reflected back, forming a standing wave in the feed line. Return loss represents the relationship between the reflected wave and the incident wave, expressed in decibels. The larger its absolute value, the better the match. 0dB indicates total reflection, and negative infinity indicates perfect match. From Figure 4 It can be seen that near 2.5 GHz, the solid line has one more resonance than the dotted line, that is, the antenna assembly provided in this embodiment has a multi-frequency effect compared to the single first antenna 1. Figure 4 It can also be seen that most of the solid line is located below the dotted line, that is, the antenna assembly provided in this embodiment has better impedance matching than the single first antenna 1.

[0049] Further, Figure 5It is an impedance circle diagram, where the solid line represents the antenna assembly and the dotted line represents the first antenna 1. Points 1 and 2 in the figure represent the antenna assembly, points 3 and 4 represent the first antenna 1, points 1 and 3 mark the same frequency 0.95GHz, and points 2 and 4 mark the same frequency 1.78GHz. From the impedance comparison, it can be seen that the second antenna 2 can be equivalent to the effect of the parallel capacitor of the first antenna 1, with better impedance matching, thereby reducing the loss of electronic components in the matcher.

[0050] In addition, the second antenna 2 is inserted into the groove 11 of the first antenna 1, and the width and length of the space occupied by the second antenna 2 are reduced by utilizing the height of the first antenna 1 in the longitudinal direction, thereby reducing the size of the space occupied by the antenna assembly.

[0051] In one possible implementation manner, the groove 11 is opened at a position of the first antenna 1 close to the signal source.

[0052] Specifically, if the groove 11 is opened at a position of the first antenna 1 far away from the signal source, the radiation efficiency of the antenna is affected. In addition, the feeding point is close to the signal source, and the coupling strength is better when coupling with the second antenna 2 at this position.

[0053] The groove 11 includes but is not limited to one or more of the following possible implementations:

[0054] In one possible implementation, Figure 2 As shown, the cross section of the groove 11 can be closed, and the energy on the inner wall of the groove 11 is coupled with the second antenna 2 inserted into the groove 11, so that the energy coupled by the second antenna 2 per unit length is stronger.

[0055] In another possible implementation manner, the cross section of the groove 11 may be open, that is, at least one side of the groove 11 is flush with the edge of the first antenna 1 .

[0056] Based on the above embodiments, Figure 6 is a cross-sectional view of another antenna assembly provided according to an exemplary embodiment, such as Figure 6 As shown, the second antenna 2 includes a parallel section 21 and an insertion section 22 . The parallel section 21 is parallel to the first antenna 1 . The insertion section 22 is bent relative to the parallel section 21 . The insertion section 22 penetrates the groove 11 .

[0057] Specifically, the first antenna 1 is arranged in a planar shape, and the parallel section 21 is parallel to the first antenna 1, which means that the axial direction of the parallel section 21 is parallel to or coincides with the axial direction of the first antenna 1, so as to increase the coupling area between the first antenna 1 and the second antenna 2, thereby increasing the coupling strength. The angle between the insertion section 22 and the parallel section 21 is not specifically limited, as long as the insertion section 22 can be inserted into the groove 11 of the first antenna 1.

[0058] Optionally, the insertion section 22 may be provided in a flat plate shape (see Figure 6 ); the insertion section 22 may also have multiple bending parts (not shown in the drawings), that is, a serpentine shape, so as to be able to couple more energy with the groove 11 of the first antenna 1; the insertion section 22 may also have other shapes. There is no specific limitation on the shape of the insertion section 22. It is only an example here, as long as the insertion section 22 does not contact the inner wall of the groove 11.

[0059] The parallel segment 21 includes but is not limited to the following possible implementations:

[0060] In one possible implementation, Figure 6 As shown, the parallel section 21 includes a first portion 211 . The first portion 211 is parallel to the first antenna 1 , and the first portion 211 is bent relative to the insertion section 22 .

[0061] Based on the above implementation, Figure 7 is a cross-sectional view of yet another antenna assembly provided according to an exemplary embodiment, Figure 7 As shown, the parallel section 21 also includes a second part 212. The first part 211 and the second part 212 are respectively connected to the two ends of the insertion section 22. The first part 211 and the second part 212 are respectively bent relative to the two ends of the insertion section 22, which not only expands the coupling area between the second antenna 2 and the first antenna 1, but also because the length of the antenna affects the transmitting and receiving frequency of the antenna, the second antenna 2 of the same length, this method reduces the space occupied by the second antenna 2.

[0062] Optionally, the first portion 211 and the second portion 212 are arranged in parallel (not shown in the drawings). The second portion 212 can be arranged opposite to the first portion 211, that is, the second antenna 2 can be arranged in a U shape as a whole, and the second portion 212 and the first portion 211 can be arranged in a staggered manner, that is, the second antenna 2 can be arranged in a Z shape as a whole.

[0063] Alternatively, if Figure 7 As shown, the first portion 211 and the second portion 212 are arranged at an angle, that is, the planes where the insertion section 22 and the first portion 211 are located, and the planes where the insertion section 22 and the second portion 212 are located intersect, further reducing the space occupied by the second antenna 2.

[0064] Embodiment 2

[0065] refer to Figure 8-10 As shown, this embodiment provides a terminal device, including a housing 3, a support member 4 is provided in the housing 3, and the antenna assembly provided in the above embodiment is connected to the support member 4.

[0066] Specifically, Figure 8FIG. 1 is a perspective view showing a connection between a first antenna 1 and a support member 4 according to an exemplary embodiment. Figure 8 As shown, the antenna assembly includes a first antenna 1 and a second antenna 2. The first antenna 1 may include a horizontal section 12 and a vertical section 13. The vertical section 13 may be bent relative to the horizontal section 12, that is, the vertical section 13 and the horizontal section 12 may be on two intersecting planes. A groove 11 is formed on the horizontal section 12 of the first antenna 1.

[0067] Specifically, the support member 4 can be set to any shape, and the structure and shape of the support member 4 are not specifically limited, as long as the support member 4 can support the first antenna 1. For the convenience of description, the following text takes the support member 4 as a hollow cube as an example to illustrate the installation of the first antenna 1 and the second antenna 2 in the housing 3. The support member 4 may include a bottom wall and a peripheral wall, and the peripheral wall is connected to the outer edge of the bottom wall and extends in a direction away from the bottom wall. The vertical section 13 of the first antenna 1 can be connected to the bottom wall, and the vertical section 13 of the first antenna 1 can be connected to the peripheral wall.

[0068] In one possible implementation, Fig. 9 FIG. 4 is a cross-sectional view of a connection between an antenna assembly and a support member 4 provided according to an exemplary embodiment. Fig. 9 As shown, a limiting hole 41 is opened on the support member 4, the part of the first antenna 1 with the groove 11 is connected to the support member 4, the projection of the limiting hole 41 is located in the groove 11, and at least part of the second antenna 2 is inserted through the limiting hole 41 and the groove 11.

[0069] Specifically, since the groove 11 includes a limiting hole 41, that is, the edge of the limiting hole 41 is located in the groove 11 or overlaps with the inner wall of the groove 11, the antenna inserted into the limiting hole 41 does not contact the inner wall of the groove 11, thereby ensuring the coupling of the first antenna 1 and the second antenna 2.

[0070] Among them, the manner of providing a spacing between the first antenna 1 and the second antenna 2 includes but is not limited to the following possibilities:

[0071] In one possible implementation, Fig. 9 As shown, the support member 4 may include a planar section 42 , at least part of the first antenna 1 and at least part of the second antenna 2 are connected to one side of the planar section 42 , and the part of the first antenna 1 with the groove 11 is connected to the other side of the planar section 42 .

[0072] Specifically, the plane section 42 here refers to the bottom wall of the support member 4, and a mounting hole 43 is provided on the plane section 42. The plane section 42 includes a front side and a back side, wherein the front side of the plane section 42 faces the inner wall of the shell 3 closest to it. For the convenience of description, the horizontal section 12 of the first antenna 1 that is not provided with the groove 11 is called the upper section 121, and the horizontal section 12 of the first antenna 1 that is provided with the groove 11 is called the lower section 122. The upper section 121 is located on one side of the mounting hole 43 and is connected to the front side of the plane section 42 of the support member 4, and the lower section 122 passes through the mounting hole 43 and is connected to the back side of the plane section 42 of the support member 4.

[0073] For ease of description, the second antenna 2 including the first portion 211, the second portion 212 and the insertion section 22 is taken as an example below. It should be understood that the support member 4 can also be applied to the case where the second antenna 2 has other structures, which can be simply deduced and will not be described here one by one.

[0074] Specifically, a limiting hole 41 is provided on the plane section 42, and the groove 11 is located below the limiting hole 41. The first part 211 is connected to the front side of the support member 4, the second part 212 is located on the reverse side of the support member 4, and the insertion section 22 extends into the limiting hole 41 and the groove 11 in sequence. Since the first part 211 is connected to the front side of the plane section 42 of the support member 4, and the lower section 122 is connected to the back side of the plane section 42 of the support member 4, a gap is provided between the first part 211 and the lower section 122; the insertion section 22 extends into the limiting groove and the limiting hole 41, then passes through the groove 11 and is connected to the ground, so that the insertion section 22 and the inner wall of the groove 11 do not contact; the length of the insertion section 22 is as long as the thickness of the groove 11, so that a gap is provided between the second part 212 and the lower section 122. In this way, the coupling between the first antenna 1 and the second antenna 2 is achieved, and the distance between them is shortened as much as possible to improve the coupling strength.

[0075] In another possible implementation, Fig.10 FIG. 4 is a cross-sectional view of another antenna assembly and a support member 4 connected according to an exemplary embodiment. Fig.10 As shown, at least part of the second antenna 2 is connected to the inner wall of the housing 3 , and a distance is provided between the first antenna 1 connected to the support 4 and part of the second antenna 2 connected to the inner wall of the housing 3 .

[0076] Specifically, the first portion 211 is connected to the inner wall of the housing 3, the horizontal section 12 is connected to the front of the planar section 42, and a gap is provided between the inner wall of the housing 3 and the front of the planar section 42, so that a gap is provided between the first portion 211 of the second antenna 2 and the horizontal section 12 of the first antenna 1. For example, the groove 11 may be located above the limiting hole 41 (e.g., Fig.10As shown); in another exemplary embodiment, the support member 4 is provided with a protrusion at the limiting hole 41, the protrusion extends toward the first part 211, and the limiting hole 41 passes through the protrusion, so that the groove 11 can also be located below the limiting hole 41, and the first part 211 can be connected to the top of the protrusion (not shown in the drawings).

[0077] Among them, the terms "above", "below", etc. are used to describe the relative positional relationship of each structure in the accompanying drawings, which is only for the convenience of description, and is not used to limit the scope of the present invention. The change or adjustment of the relative relationship shall also be regarded as the scope of the present invention without substantial change in the technical content. It should be noted that: in the present invention, unless otherwise clearly stipulated and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An antenna assembly, characterized in that: include: A first antenna and a second antenna coupled to the first antenna, the first antenna and the second antenna having different operating frequency bands, the first antenna being connected to a signal source and a ground respectively, the first antenna being provided with a groove, at least a portion of the second antenna being inserted into the groove and connected to the ground, and a certain distance being provided between the second antenna and an inner wall of the groove, and a surface of the second antenna in the groove being parallel to a groove wall of the groove; The second antenna includes a parallel section and an insertion section, the parallel section is parallel to the first antenna, the insertion section is bent relative to the parallel section, and the insertion section is inserted into the groove; The parallel section includes a first part and a second part, the first part and the second part are respectively connected to the two ends of the insertion section, the first part and the second part are respectively bent relative to the two ends of the insertion section, and the first part and the second part are parallel or angled.

2. The antenna assembly according to claim 1, characterized in that: The groove is opened at a position of the first antenna close to the signal source.

3. The antenna assembly according to claim 1, characterized in that: The cross section of the groove is closed.

4. A terminal device, comprising a housing, characterized in that: A support member is provided in the shell, and the antenna assembly according to any one of claims 1 to 3 is connected to the support member.

5. The terminal device according to claim 4, characterized in that: The support member has a limiting hole, the portion of the first antenna having the groove is connected to the support member, the projection of the limiting hole is located in the groove, and at least a portion of the second antenna passes through the limiting hole and the groove.

6. The terminal device according to claim 5, characterized in that: The support member includes a planar section, at least part of the first antenna and at least part of the second antenna are connected to one side of the planar section, and a portion of the first antenna having the groove is connected to the other side of the planar section.

7. The terminal device according to claim 5, characterized in that: At least a portion of the second antenna is connected to the inner wall of the shell, and a distance is provided between the first antenna connected to the support member and a portion of the second antenna connected to the inner wall of the shell.

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