Antenna structure and terminal equipment

Abstract

The utility model discloses an antenna structure and terminal equipment, and relates to the technical field of antennae, the antenna structure comprises a plurality of antennae connected between a wireless communication module and a cellular communication module, and the structures of the antennae are the same; the antenna comprises a first sub-antenna and a second sub-antenna, and the first sub-antenna is connected with the second sub-antenna through the on-off switch; wherein the antenna wavelength of the first sub-antenna is the antenna wavelength required by the wireless communication module, the antenna wavelength of the second sub-antenna is the antenna wavelength required by the cellular communication module when the cellular communication module is in a medium-high frequency band, and the antenna wavelength of the antenna is the antenna wavelength required by the cellular communication module when the cellular communication module is in a low frequency band. In this way, the number of antennas needing to be configured on the terminal equipment is reduced, and meanwhile, due to the fact that the wavelength of the antenna connected to the corresponding communication module can be the antenna wavelength needed by the corresponding communication module, the antenna performance of wireless communication and cellular communication of the terminal equipment can be met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of antennas, and in particular to an antenna structure and a terminal device. BACKGROUND

[0002] With the popularity of terminal devices, users have higher and higher requirements for the communication capabilities of the devices.

[0003] Currently, terminal devices on the market usually need to be configured with multiple antennas to support different communication technologies. For example, a wireless communication-based solution needs to be configured with at least two antennas on a terminal device to implement MIMO technology, so as to improve the signal receiving and sending capabilities. A cellular communication-based solution needs to be configured with at least two antennas on a terminal device to ensure communication quality, that is, at least four antennas need to be configured on a terminal device to support wireless communication and cellular communication. Such a design not only increases the cost of antennas, but also brings challenges to the arrangement of wireless communication and cellular communication antennas in the whole machine under the trend of miniaturization of terminal devices.

[0004] The above content is only used to assist in understanding the technical solutions of the application and does not represent the acknowledgement of the above content as prior art. UTILITY MODEL CONTENT

[0005] The main purpose of the application is to provide an antenna structure and a terminal device, and aims to solve the technical problem of how to reduce the number of antennas while meeting the antenna performance requirements of terminal devices for wireless communication and cellular communication.

[0006] To achieve the above purpose, the application provides an antenna structure, which comprises multiple antennas connected between a wireless communication module and a cellular communication module, and the structures of the antennas are the same.

[0007] The antenna comprises a first sub-antenna and a second sub-antenna, and the first sub-antenna is connected to the second sub-antenna through a on-off switch.

[0008] The antenna wavelength of the first sub-antenna is the antenna wavelength required by the wireless communication module, the antenna wavelength of the second sub-antenna is the antenna wavelength required by the cellular communication module in a medium-high frequency band, and the antenna wavelength of the antenna is the antenna wavelength required by the cellular communication module in a low frequency band.

[0009] In an embodiment, when the wireless communication module and the cellular communication module each need to be configured with two antennas, the antenna structure comprises a first antenna and a second antenna.

[0010] In an embodiment, one end of the first sub-antenna in the first antenna is connected to one end of the second sub-antenna in the first antenna through a first on-off switch, and the other end of the second sub-antenna in the first antenna is connected to the cellular communication module.

[0011] In an embodiment, one end of the first sub-antenna in the second antenna is connected to one end of the second sub-antenna in the second antenna through the second on-off switch, and the other end of the second sub-antenna in the second antenna is connected to the cellular communication module.

[0012] In an embodiment, the antenna structure further comprises a third on-off switch and a fourth on-off switch.

[0013] The third on-off switch is connected between the wireless communication module and the other end of the first sub-antenna in the first antenna.

[0014] The fourth on-off switch is connected between the wireless communication module and the other end of the first sub-antenna in the second antenna.

[0015] In an embodiment, the antenna structure further comprises a control unit.

[0016] The control unit is connected to the first on-off switch, the second on-off switch, the third on-off switch and the fourth on-off switch, respectively.

[0017] In an embodiment, in a scenario of wireless communication based on the wireless communication module, the third on-off switch and the fourth on-off switch are in a closed state, and the first on-off switch and the second on-off switch are in an open state.

[0018] In an embodiment, in a scenario of medium-high frequency band communication based on the cellular communication module, the first on-off switch and the second on-off switch are in an open state, and the third on-off switch and the fourth on-off switch are in a closed state.

[0019] In an embodiment, in a scenario of low frequency band communication based on the cellular communication module, the third on-off switch and the fourth on-off switch are in an open state, and the first on-off switch and the second on-off switch are in a closed state.

[0020] In addition, to achieve the above-mentioned purpose, the application further provides a terminal device comprising the antenna structure as described above.

[0021] The one or more technical solutions proposed in the application have at least the following technical effects:

[0022] An antenna structure is proposed, which comprises a plurality of antennas connected between a wireless communication module and a cellular communication module, and the structures of the antennas are the same; the antenna comprises a first sub-antenna and a second sub-antenna, and the first sub-antenna is connected to the second sub-antenna through an on-off switch; wherein the antenna wavelength of the first sub-antenna is the antenna wavelength required by the wireless communication module, the antenna wavelength of the second sub-antenna is the antenna wavelength required when the cellular communication module is in a medium-high frequency band, and the antenna wavelength of the antenna is the antenna wavelength required when the cellular communication module is in a low frequency band.

[0023] That is, the application segments the antenna wavelength of a single antenna according to the antenna wavelength required by the wireless communication module and the cellular communication module provided on the terminal device, and connects the segmented antenna through the on-off switch, so as to control the on-off of the on-off switch according to the communication module currently used, and form the antenna wavelength required by the communication module used, that is, based on a single antenna to meet the antenna wavelength required by two communication schemes, compared with the conventional scheme that a single antenna can only be applied to one communication module, the application can effectively reduce the number of antennas required to be configured on the terminal device, and because the antenna wavelength accessed to the corresponding communication module can be the antenna wavelength required by the corresponding communication module, the application can also meet the antenna performance of the terminal device for wireless communication and cellular communication. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings required to be used in the embodiments or prior art description will be briefly introduced. Obviously, those skilled in the art can obtain other drawings according to these drawings without creative effort.

[0026] Figure 1 The structure schematic diagram of the antenna structure of the application connected between the wireless communication module and the cellular communication module;

[0027] Figure 2 The schematic diagram of the conventional antenna configuration;

[0028] Figure 3 The antenna configuration schematic diagram of the application in the case of requiring two antennas for the wireless communication module and the cellular communication module respectively;

[0029] Figure 4 The on-off schematic diagram of the on-off switch in the scenario of wireless communication based on the wireless communication module / medium-high frequency band communication based on the cellular communication module;

[0030] Figure 5 The on-off schematic diagram of the on-off switch in the scenario of low frequency band communication based on the cellular communication module.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 10, antenna structure; 11, first sub-antenna; 12, second sub-antenna; k, on-off switch;

[0033] 101, first antenna; 101-11, first sub-antenna in the first antenna; 101-12, second sub-antenna in the first antenna; k1, first on-off switch; k3, third on-off switch;

[0034] 102, second antenna; 102-11, first sub-antenna in the second antenna; 102-12, second sub-antenna in the second antenna; k2, second on-off switch; k4, fourth on-off switch;

[0035] U1, control unit.

[0036] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0039] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solutions are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0040] Based on this, the embodiments of the present application provide an antenna structure 10, referring to Figure 1 , Figure 1 is a structural schematic diagram of the antenna structure 10 of the present application.

[0041] In this embodiment, the antenna structure 10 includes a plurality of antennas connected between the wireless communication module and the cellular communication module, and the structures of the antennas are the same;

[0042] The antenna includes a first sub-antenna 11 and a second sub-antenna 12, and the first sub-antenna 11 is connected with the second sub-antenna 12 through a switch k. The antenna wavelength of the first sub-antenna 11 is the antenna wavelength required by the wireless communication module, the antenna wavelength of the second sub-antenna 12 is the antenna wavelength required when the cellular communication module is in the middle-high frequency band, and the antenna wavelength of the antenna (i.e. the antenna wavelength formed by the first sub-antenna 11 and the second sub-antenna 12) is the antenna wavelength required when the cellular communication module is in the low frequency band.

[0043] Firstly, based on Figure 2 The antennas required by the wireless communication module and the cellular communication module at the present stage are described. As shown in the figure, the wireless communication module and the cellular communication module configured on the terminal device at the present stage need to be configured with 2 antennas respectively, that is, the wireless communication module needs to be configured with antenna 1 and antenna 2 for wireless communication, and the cellular communication module needs to be configured with antenna 3 and antenna 4 for cellular communication. That is, one antenna configured on the terminal device at the present stage can only be applied to one communication technology, and multiple antennas need to be configured for one communication technology, so there is a situation that too many antennas need to be configured.

[0044] Based on the above situation, a scheme that one antenna can be applied to two communication technologies is proposed. Specifically, the present embodiment proposes to connect an antenna between the wireless communication module and the cellular communication module arranged in the terminal device, and the antenna is segmented according to the antenna wavelengths required by different communication modules, and then the segmented antennas are connected through a switch.

[0045] The specific way of segmenting the antenna is: first, determine the antenna wavelengths required by the wireless communication module and the cellular communication module respectively when they are running, determine the longest antenna wavelength required, that is, the antenna wavelength required when the cellular communication module is in the low frequency band. This antenna wavelength is the total antenna wavelength of the antenna arranged between the wireless communication module and the cellular communication module. Then, determine the antenna wavelengths required by the wireless communication module and the cellular communication module when they are in the middle-high frequency band. According to the two antenna wavelengths, the total antenna wavelength is segmented to obtain two antenna wavelengths respectively meeting the requirements of the wireless communication module and the cellular communication module. Then, the two segmented antenna wavelengths are connected through a switch. By controlling the on-off of the switch, one antenna can be switched to different antenna wavelengths to meet the requirements of different communication modules.

[0046] Substitute the scheme proposed in this embodiment into the conventional antenna configuration shown in Figure 2 to obtain Figure 2The wireless communication module and the cellular communication module are configured with antennas. The embodiment only needs to configure two antennas, and the number of antennas is reduced by 2 compared with the conventional antenna configuration. In the case where the wireless communication module and the cellular communication module each need to be configured with two antennas, the antenna configuration proposed in the embodiment can reduce the number of antennas by one half compared with the conventional antenna configuration, thereby reducing the number of antennas while meeting the antenna performance requirements of the terminal device for wireless communication and cellular communication.

[0047] In a feasible implementation scenario, referring to Figure 3 As shown, in the case where the wireless communication module and the cellular communication module each need to be configured with two antennas, the antenna structure 10 includes a first antenna 101 and a second antenna 102.

[0048] For ease of illustration, the embodiment takes the case where the wireless communication module and the cellular communication module each need to be configured with two antennas in a certain terminal device as an example. In the conventional antenna configuration, two antennas need to be configured on the wireless communication module and the cellular communication module respectively, i.e., a total of four antennas need to be configured in the terminal device.

[0049] In the antenna configuration proposed in the application, only two antennas, i.e., the first antenna 101 and the second antenna 102, need to be configured between the wireless communication module and the cellular communication module. The first antenna 101 and the second antenna 102 are segmented in terms of antenna wavelength, and the segmented first antenna 101 and the second antenna 102 are connected through on-off switches, thereby forming the first antenna 101 and the second antenna 102 capable of wavelength conversion according to the required wavelength. In this way, the configured antennas can still meet the communication requirements and antenna performance requirements of the wireless communication module and the cellular communication module in the case where the number of antennas to be configured is reduced.

[0050] Specifically, one end of a first sub-antenna 101-11 in the first antenna 101 is connected to one end of a second sub-antenna in the first antenna 101 through a first on-off switch k1, and the other end of the second sub-antenna is connected to the cellular communication module. One end of a first sub-antenna 102-11 in the second antenna 102 is connected to one end of a second sub-antenna in the second antenna 102 through a second on-off switch k2, and the other end of the second sub-antenna is connected to the cellular communication module.

[0051] Before the first antenna 101 and the second antenna 102 are segmented and connected through the on-off switch, the antenna wavelength required by the wireless communication module and the cellular communication module respectively arranged in the terminal device needs to be determined first. It can be known that the frequency band of the wireless communication module is 2400MHz-2500MHz, the frequency band of the cellular communication module working in the low frequency band is 617MHz-960MHz, the frequency band of the cellular communication module working in the medium-high frequency band is 1452-5000MHz, and according to the antenna wavelength calculation formula and the wavelength corresponding to the monopole antenna is λ / 4, the antenna wavelength required by the wireless communication module is about 3cm, the antenna wavelength required by the cellular communication module working in the low frequency band is about 8cm, and the antenna wavelength required by the cellular communication module working in the medium-high frequency band is about 5cm, so at this time, the first antenna 101 and the second antenna 102 connected between the wireless communication module and the cellular communication module can be segmented, the total wavelength of the first antenna 101 and the second antenna 102 is selected as 8cm, and the first antenna 101 and the second antenna 102 are segmented into the first sub-antenna 11 with a wavelength of 3cm and the second sub-antenna 12 with a wavelength of 5cm, the first sub-antenna 101-11 and the second sub-antenna 101-12 belonging to the first antenna 101 are connected through the first on-off switch k1, and the first sub-antenna 102-11 and the second sub-antenna 102-12 belonging to the second antenna 102 are connected through the second on-off switch k2, and because the first sub-antenna 11 with a wavelength of 3cm is used for the wireless communication module, and the second sub-antenna 12 with a wavelength of 5cm is used for the cellular wireless module working in the medium-high frequency band, therefore the other end of the second sub-antenna 101-12 in the first antenna 101 which is not connected with the first on-off switch k1 is connected with the cellular communication module, and the other end of the second sub-antenna 102-12 in the second antenna 102 which is not connected with the second on-off switch k2 is connected with the cellular communication module, by controlling the on-off state of the first on-off switch k1 and the second on-off switch k2, the antenna wavelength that the first antenna 101 and the second antenna 102 can change is dynamically controlled, the first antenna 101 and the second antenna 102 can dynamically match the antenna wavelength required by the communication module connected, and the dynamic matching of the antenna performance is achieved.

[0052] It should be noted that the second sub-antenna 12 is directly connected with the cellular communication module because the whole first antenna 101 and the second antenna 102 need to be called when the cellular communication module works in the low frequency band, and the second sub-antenna 12 needs to be called when the cellular communication module works in the medium-high frequency band, and there is no scene that needs to be completely disconnected from the connection relationship with the first antenna 101 and the second antenna 102, so the second sub-antenna 12 can be directly connected with the cellular communication module.

[0053] Further, the antenna structure 10 further comprises a third on-off switch k3 and a fourth on-off switch k4;

[0054] The third on-off switch k3 is connected between the wireless communication module and the other end of the first sub-antenna 101-11 in the first antenna 101; and the fourth on-off switch k4 is connected between the wireless communication module and the other end of the first sub-antenna 102-11 in the second antenna 102.

[0055] Specifically, because the cellular communication module needs to call the whole first antenna 101 and the whole second antenna 102 when working in the low frequency band, the cellular communication module needs to be disconnected from the wireless communication module when working in the low frequency band, and therefore the first sub-antenna 101-11 in the first antenna 101 and the first sub-antenna 102-11 in the second antenna 102 cannot be connected to the wireless communication module. In the embodiment, the other end of the first sub-antenna 101-11 in the first antenna 101 which is not connected to the first on-off switch k1 is connected to the wireless communication module through the third on-off switch k3, and the other end of the first sub-antenna 102-11 in the second antenna 102 which is not connected to the second on-off switch k2 is connected to the wireless communication module through the fourth on-off switch k4. In this way, by controlling the on-off state of the third on-off switch k3 and the fourth on-off switch k4, whether the wireless communication module is connected to the first antenna 101 and the second antenna 102 is dynamically controlled, so as to avoid the frequency interference caused by the wireless communication module still being connected to the first antenna 101 and the second antenna 102 when the cellular communication module works in the low frequency band, and the communication quality is reduced.

[0056] It should be noted that the antenna structure 10 further includes a control unit U1; the control unit U1 is connected to the first on-off switch k1, the second on-off switch k2, the third on-off switch k3 and the fourth on-off switch k4 respectively. In the embodiment, the control unit U1 dynamically controls the on-off state of the first on-off switch k1, the second on-off switch k2, the third on-off switch k3 and the fourth on-off switch k4 according to the communication demand of the wireless communication module and the cellular communication module, so as to realize the dynamic switching of different antenna wavelengths.

[0057] In the first feasible implementation, in the scenario of wireless communication based on the wireless communication module, the third on-off switch k3 and the fourth on-off switch k4 are in the closed state, and the first on-off switch k1 and the second on-off switch k2 are in the open state.

[0058] Specifically, as shown in FIG. 2, the first on-off switch k1 is connected between the cellular communication module and the other end of the first sub-antenna 101-11 in the first antenna 101; the second on-off switch k2 is connected between the cellular communication module and the other end of the first sub-antenna 102-11 in the second antenna 102; the third on-off switch k3 is connected between the wireless communication module and the other end of the first sub-antenna 101-11 in the first antenna 101; and the fourth on-off switch k4 is connected between the wireless communication module and the other end of the first sub-antenna 102-11 in the second antenna 102. Figure 4As shown, when the current terminal device is based on the wireless communication module for wireless communication, it indicates that the wireless communication module needs to access the first sub-antenna 11 at this time, so the control unit U1 will control the third on-off switch k3 and the fourth on-off switch k4 to be closed at this time, so that the wireless communication module can be connected with the first sub-antenna 11 in the first antenna 101 and the second antenna 102 respectively, and the first on-off switch k1 and the second on-off switch k2 are controlled to be disconnected, so that the antenna wavelength accessed by the wireless communication module is 3cm required by it. Therefore, the two first sub-antennas 11 of 3cm are used as the antenna of the wireless communication module, which meets the antenna wavelength required when the wireless communication module works in the wireless frequency band.

[0059] It should be noted that when the first on-off switch k1 and the second on-off switch k2 are in the disconnected state, because the second sub-antenna 12 in the first antenna 101 and the second antenna 102 is directly connected with the cellular communication module, therefore when the first sub-antenna 11 is used as the antenna of the wireless communication module for communication operation, at this time, the two second sub-antennas 12 of 5cm are used as the antenna of the cellular communication module, which realizes that when the communication capability of the wireless communication module is insufficient, the terminal device can quickly switch to the cellular communication module to continue the communication operation, that is, the terminal device in the embodiment can be used under two kinds of communication technologies.

[0060] In a second possible implementation, in the scenario of medium-high frequency band communication based on the cellular communication module, the first on-off switch k1 and the second on-off switch k2 are in the disconnected state, and the third on-off switch k3 and the fourth on-off switch k4 are in the closed state.

[0061] Still as Figure 4 As shown, when the current terminal device is based on the cellular communication module for medium-high frequency band communication, it indicates that the cellular communication module needs to access the second sub-antenna 12 at this time, so the control unit U1 will control the first on-off switch k1 and the second on-off switch k2 to be disconnected at this time, so that the cellular communication module can be connected with the second sub-antenna 12 in the first antenna 101 and the second antenna 102 respectively, so that the antenna wavelength accessed by the cellular communication module is 5cm required by it. Therefore, the two second sub-antennas 12 of 5cm are used as the antenna of the cellular communication module, which meets the antenna wavelength required when the cellular communication module works in the medium-high frequency band.

[0062] Among them, when the cellular communication module is in the medium-high frequency band, the UCB in the cellular communication module is used to configure and optimize the communication parameters, so as to realize higher communication performance.

[0063] It should be noted that, in order to enable the terminal device to quickly switch to the wireless communication module to continue communication when the communication capability of the cellular communication module is insufficient, the third on / off switch k3 and the fourth communication switch can be controlled to enter the closed state, so that the first antenna 101 and the first sub-antenna 11 in the second antenna 102 can be connected to the wireless communication module, so that the terminal device can be used under two communication technologies, while improving the utilization rate of the configured antennas.

[0064] In the third feasible implementation, in the scenario of low-frequency communication based on cellular communication module, the third on / off switch k3 and the fourth on / off switch k4 are in the off state, and the first on / off switch k1 and the second on / off switch k2 are in the closed state.

[0065] Specifically, such as Figure 5 As shown, when the current terminal device is using a cellular communication module for low-frequency communication, the cellular communication module needs to be connected to the entire antenna to meet the antenna wavelength requirements when operating in the low-frequency band. To improve the antenna performance of the cellular communication module when operating in the low-frequency band, the control unit U1 controls the first on / off switch k1 and the second on / off switch k2 to be in the closed state, so that the first sub-antenna 11 and the second sub-antenna 12 can be combined to form an antenna wavelength of 8cm, which meets the antenna wavelength requirements of the cellular communication module when operating in the low-frequency band. At the same time, the control unit U1 controls the third on / off switch k3 and the fourth on / off switch k4 to be in the open state to avoid the communication quality degradation caused by the wireless communication module and the cellular communication module being connected to the same antenna simultaneously.

[0066] The antenna structure proposed in this embodiment can not only reduce the number of antennas required in the terminal device, but also meet the antenna wavelength requirements of different communication modules in different frequency bands, thereby improving the antenna performance in different frequency bands. This reduces the number of antennas while avoiding a decrease in communication quality based on the antenna.

[0067] It should be noted that, Figure 3 This is only one feasible implementation of the present application. If the wireless communication module and the cellular communication module require three, four, or other antennas, it is only necessary to... Figure 3 Based on this, simply add an antenna with the same structure.

[0068] This application also provides a terminal device, which includes the antenna structure 10 as described above.

[0069] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An antenna structure, characterized by The antenna structure comprises a plurality of antennas connected between the wireless communication module and the cellular communication module, each of the antennas having the same structure; The antenna comprises a first sub-antenna and a second sub-antenna, the first sub-antenna being connected to the second sub-antenna through a first on-off switch; The antenna wavelength of the first sub-antenna is the antenna wavelength required by the wireless communication module, the antenna wavelength of the second sub-antenna is the antenna wavelength required by the cellular communication module in the medium-high frequency band, and the antenna wavelength of the antenna is the antenna wavelength required by the cellular communication module in the low frequency band.

2. The antenna structure of claim 1, wherein, In the case where the wireless communication module and the cellular communication module each require two antennas to be configured, the antenna structure comprises a first antenna and a second antenna.

3. The antenna structure of claim 2, wherein, One end of the first sub-antenna in the first antenna is connected to one end of the second sub-antenna in the first antenna through a first on-off switch, and the other end of the second sub-antenna in the first antenna is connected to the cellular communication module.

4. The antenna structure of claim 3, wherein, One end of the first sub-antenna in the second antenna is connected to one end of the second sub-antenna in the second antenna through a second on-off switch, and the other end of the second sub-antenna in the second antenna is connected to the cellular communication module.

5. The antenna structure of claim 4, wherein, The antenna structure further comprises a third on-off switch and a fourth on-off switch; The third on-off switch is connected between the wireless communication module and the other end of the first sub-antenna in the first antenna; The fourth on-off switch is connected between the wireless communication module and the other end of the first sub-antenna in the second antenna.

6. The antenna structure of claim 5, wherein, The antenna structure further comprises a control unit; The control unit is connected to the first on-off switch, the second on-off switch, the third on-off switch, and the fourth on-off switch, respectively.

7. The antenna structure of claim 6, wherein, In the scenario of wireless communication based on the wireless communication module, the third on-off switch and the fourth on-off switch are in a closed state, and the first on-off switch and the second on-off switch are in an open state.

8. The antenna structure of claim 6, wherein, In the scenario of medium-high frequency band communication based on the cellular communication module, the first on-off switch and the second on-off switch are in an open state, and the third on-off switch and the fourth on-off switch are in a closed state.

9. The antenna structure of claim 6, wherein, In the scenario of low frequency band communication based on the cellular communication module, the third on-off switch and the fourth on-off switch are in an open state, and the first on-off switch and the second on-off switch are in a closed state.

10. A terminal device, comprising: The terminal device comprises the antenna structure according to any one of claims 1 to 9.

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