Communication device

By using shields in communication equipment to absorb and reflect intermodulation signals, the problem of time division duplex antenna module interfering with frequency division duplex antenna module is solved, and the stability of signal reception and the overall reliability of communication equipment are improved.

WO2025001860A1PCT designated stage expired Publication Date: 2025-01-02HUAWEI TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/098853
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-30
Filing Date
2024-06-13
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

In communication equipment, intermodulation source interference of the time division duplex antenna module causes the signal reception stability and accuracy of the frequency division duplex antenna module to decrease, affecting the working stability and reliability of the communication equipment.

Method used

The shielding element is adopted. The shielding frequency of the shielding element matches the signal frequency of the frequency division duplex antenna module, and is located between the frequency division duplex antenna module and the intermodulation source, and is used to reflect and absorb part of the source signal and intermodulation signal to reduce mutual communication. The interference of the adjusting signal to the target signal.

Benefits of technology

Effectively reduce the interference of intermodulation signals on the target signal, improve the stability and accuracy of the frequency division duplex antenna module to receive signals, improve the working stability and reliability of communication equipment, and simplify the installation structure of the shield. , reduces installation costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a communication device, comprising a first antenna module and a second antenna module having different signal frequencies. The second antenna module comprises an intermodulation source, a shielding member is arranged between the first antenna module and the intermodulation source, and the shielding frequency of the shielding member matches the signal frequency of the first antenna module and the shielding member is used for shielding signal transmission between the first antenna module and the intermodulation source. In the present application, the shielding member can reflect and absorb at least some of source signals and at least some of intermodulation signals, thereby reducing the risk that the source signals are transmitted to the intermodulation source and the intermodulation signals are transmitted to the first antenna module, reducing the interference of the intermodulation signals on a target signal, improving the stability and accuracy of reception of the target signal by the first antenna module, and thus improving the working stability and reliability of the first antenna module and the communication device.
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Description

communications equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 30, 2023, with application number 202321704773.9 and application name “Communication Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communication technology, and in particular to a communication device. Background Art

[0003] The communication device includes at least a first antenna module and a second antenna module with different signal frequencies to meet the communication device's reception and transmission of signals of different frequencies, wherein the first antenna module includes a frequency division duplex antenna, that is, the first antenna module can simultaneously receive and transmit signals, and the first antenna module will perform intermodulation design to reduce mutual interference between received and transmitted signals; the second antenna module includes a time division duplex antenna, that is, the signal reception and signal transmission of the second antenna module are performed in time periods. Therefore, the second antenna module does not perform intermodulation design, so that an intermodulation source exists in the second antenna module. When the source signal emitted by the first antenna module is transmitted to the second antenna module, the intermodulation source is excited, and multiple source signals are intermodulated at the intermodulation source to form an intermodulation signal. The intermodulation signal will be received by the first antenna module, thereby interfering with the signal reception work of the first antenna module.

[0004] Application Contents

[0005] The present application provides a communication device capable of reducing interference of an intermodulation source on a signal reception operation of a first antenna module.

[0006] The present application provides a communication device, comprising: a first antenna module, the first antenna module including at least one frequency-division duplex antenna; a second antenna module, the second antenna module including at least one time-division duplex antenna and an intermodulation source, the signal frequency of the second antenna module being different from the signal frequency of the first antenna module; and a shielding member, the shielding frequency of the shielding member matching the signal frequency of the first antenna module, the shielding member being located between the first antenna module and the intermodulation source along the distribution direction of the first antenna module and the second antenna module, and being used to shield the signal transmission between the first antenna module and the intermodulation source. In the present application, the shielding member can reflect and absorb at least a portion of the source signal and at least a portion of the intermodulation signal, thereby reducing the risk of the source signal being transmitted to the intermodulation source and the intermodulation signal being transmitted to the first antenna module, thereby reducing the interference of the intermodulation signal on the target signal, improving the stability and accuracy of the first antenna module's reception of the target signal, and improving the operating stability and reliability of the first antenna module and the communication device.

[0007] In some embodiments, the second antenna module includes a housing that defines a housing cavity, wherein the time-division duplex antenna and the intermodulation source are located within the housing cavity; and a shielding member is mounted on the housing. In this application, the shielding member is mounted on the housing, simplifying the installation structure of the shielding member and reducing the installation cost of the shielding member.

[0008] In some embodiments, the cover includes a first surface and a second surface along the thickness direction of the cover, the first surface being located on a side of the cover away from the time-division duplex antenna; the shielding member is adhesively fixed to the first surface; and / or the communication device includes a support member, the support member being mounted on the first surface, and the shielding member being mounted on the support member; and / or the shielding member is disposed on the second surface and covers at least a portion of the second surface; and / or the shielding member is located between the first and second surfaces. In the present application, the shielding member can be disposed on the outer surface, inner surface, or interior of the cover to increase flexibility in the placement of the shielding member.

[0009] In some embodiments, a communication device includes a base, and a shielding member is mounted on the base and positioned between the first antenna module and the second antenna module along a distribution direction of the first antenna module and the second antenna module. In the present application, mounting the shielding member on the base reduces the risk of damage to the shielding member and the second antenna module during installation, extends the service life of the shielding member and the second antenna module, and improves the operational stability of the second antenna module.

[0010] In some embodiments, the communication device includes a support member, and the shielding member is mounted to the base via the support member. Along the distribution direction of the first antenna module and the second antenna module, at least a portion of the support member is located between the first antenna module and the intermodulation source, and the shielding member is mounted to the support member. In the present application, the shielding member is mounted to the base via the support member, which simplifies the connection structure between the shielding member and the base, reduces the installation cost of the shielding member, and simultaneously increases the connection strength between the shielding member and the base, thereby increasing the installation stability of the shielding member.

[0011] In some embodiments, the support member encloses a shielded space, and at least a portion of the second antenna module is located within the shielded space. In the present application, the support member is mounted on the substrate and covers the outer side of the second antenna module, thereby increasing the coverage area of ​​the support member over the second antenna module, thereby increasing the coverage area of ​​the shielding member and enhancing the shielding effectiveness of the shielding member.

[0012] In some embodiments, along the thickness direction of the support member, the shielding member is located between the support member and the first antenna module, and / or between the support member and the second antenna module, and / or within the support member. In the present application, the shielding member is mounted on the surface and / or within the support member, increasing the diversity of the mounting position of the shielding member on the support member.

[0013] In some embodiments, the shielding element is a shielding film comprising a frequency selective surface metal film layer. In the present application, the frequency selective surface metal film layer enables the shielding element to reflect and absorb the source signal and intermodulation signal without affecting the signal of the second antenna module, allowing the second antenna module to operate normally and improving the operating stability of the second antenna module.

[0014] In some embodiments, the shielding film includes one or more of a scratch-resistant layer, an anti-ultraviolet oxidation layer, and a backing layer. In this application, the provision of the scratch-resistant layer and / or the anti-ultraviolet oxidation layer can extend the service life of the shielding component; the provision of the backing layer can increase the strength of the shielding film, facilitate installation of the shielding film, and reduce installation costs.

[0015] In some embodiments, the shielding member is a shielding net. In the present application, the shielding member is a shielding net, which can extend the service life of the shielding member and facilitate the installation of the shielding member, thereby simplifying the installation structure of the shielding member.

[0016] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic diagram of a partial structure of a communication device provided by the present application in one embodiment, wherein a shielding member is mounted on a cover;

[0018] FIG2 is a cross-sectional view of the second antenna module in FIG1 in one embodiment, wherein the shielding member is mounted on the first surface;

[0019] FIG3 is a cross-sectional view of the second antenna module in FIG1 in another embodiment, wherein the shielding member is mounted on the second surface;

[0020] FIG4 is a cross-sectional view of the second antenna module in FIG1 in another embodiment, wherein a shielding member is installed between the first surface and the second surface;

[0021] FIG5 is a schematic diagram of a partial structure of another embodiment of the communication device provided by the present application, wherein the shielding member is mounted on the supporting member, and the supporting member is mounted on the first surface;

[0022] FIG6 is a cross-sectional view of the support member in FIG5 in one embodiment, wherein the shielding member is located between the first antenna module and the support member;

[0023] FIG7 is a cross-sectional view of the support member in FIG5 in another embodiment, wherein the shielding member is located between the second antenna module and the support member;

[0024] FIG8 is a cross-sectional view of the support member in FIG5 in another embodiment, wherein the shielding member is located inside the support member;

[0025] FIG9 is a schematic diagram of a partial structure of another embodiment of the communication device provided by the present application, wherein the shielding member is directly mounted on the substrate and is located between the first antenna module and the second antenna module;

[0026] FIG10 is a schematic diagram of a partial structure of another embodiment of the communication device provided by the present application, wherein the support member is mounted on the base, and the shielding member is located between the first antenna module and the support member;

[0027] FIG11 is a partial structural diagram of another embodiment of the communication device provided by the present application, wherein the support member is mounted on the base, and the shielding member is located between the second antenna module and the support member;

[0028] FIG12 is a schematic diagram of a partial structure of another embodiment of the communication device provided by the present application, wherein the support member is mounted on the base, and the shielding member is located inside the support member;

[0029] FIG13 is a cross-sectional view of the support member in FIG12;

[0030] FIG14 is a schematic diagram of a partial structure of another embodiment of the communication device provided by the present application, wherein the support member is mounted on the base and is sleeved outside the second antenna module;

[0031] FIG15 is a schematic diagram of a partial structure of a shielding net provided by the present application in one embodiment, wherein the outline shape of the mesh is circular;

[0032] FIG16 is a schematic diagram of the partial structure of the shielding net provided in the present application in one embodiment, wherein the outline shape of the mesh is a quadrilateral.

[0033] Figure numerals: 1-first antenna module; 2-second antenna module; 21-time division duplex antenna; 22-cover; 221-first surface; 222-second surface; 23-accommodating cavity; 3-shielding member; 31-mesh; 4-support member; 41-shielding space; 5-substrate.

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0035] In order to better understand the technical solutions of this specification, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0036] In a specific embodiment, the present application is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0037] An embodiment of the present application provides a communication device, which may be an electronic device with wireless communication capabilities such as a mobile phone, a computer, a tablet, AR glasses, VR glasses, a smart helmet, or a communication base station. The embodiment of the present application does not specifically limit the specific type of the communication device.

[0038] As shown in Figures 1 to 11, the communication device includes a base 5 and a first antenna module 1 and a second antenna module 2 mounted on the base 5, each having different signal frequencies. For example, the first antenna module 1 can be used to receive and transmit 2G signals, 3G signals, 4G signals, 5G signals, etc., and the second antenna module 2 can be used to receive and transmit 2G signals, 3G signals, 4G signals, 5G signals, etc. The embodiments of the present application do not impose any specific restrictions on the signal frequencies received and transmitted by the first antenna module 1 and the second antenna module 2, as long as the transmit and receive signal frequencies of the first antenna module 1 and the second antenna module 2 are different. The first antenna module 1 and the second antenna module 2 can be distributed along the length, width, or thickness direction, that is, the first antenna module 1 and the second antenna module 2 can be distributed vertically, front to back, or left to right. The embodiments of the present application do not impose any specific restrictions on the distribution direction of the first antenna module 1 and the second antenna module 2, and the number of the first antenna module 1 and the second antenna module 2 can be one or more. The embodiments of the present application do not impose any specific restrictions on the distribution method or number of the first antenna module 1 and the second antenna module 2. Among them, when the communication device is an electronic device with wireless communication function, the base 5 is the shell of the electronic device; when the communication device is a communication base station, the base 5 is a communication base station beam, an installation base, etc. The embodiment of this application does not specifically limit the specific structure and type of the base 5.

[0039] The first antenna module 1 includes at least one frequency division duplex antenna, that is, the first antenna module 1 can transmit signals while receiving signals. Therefore, the first antenna module 1 needs to be designed for intermodulation to reduce the risk of intermodulation between the signals transmitted by the first antenna module 1 and the received signals, thereby improving the stability and accuracy of the first antenna module 1 in transmitting and receiving signals. Among them, the first antenna module 1 can transmit multiple source signals at the same time, and can also receive multiple target signals at the same time, so as to improve the working efficiency of the first antenna module 1.

[0040] The second antenna module 2 includes at least one time-division duplex antenna 21, that is, the reception and transmission of signals by the second antenna module 2 are performed in time periods, and the signals transmitted by the second antenna module 2 will not interfere with the reception of signals by the second antenna module 2. Therefore, there is no need to perform intermodulation design on the second antenna module 2 to improve the integration of the second antenna module 2. The second antenna module 2 for which intermodulation design is not performed has an intermodulation source, which is a passive component, usually a metal overlap of the second antenna module 2, a loose cable connection, an aging position, an aging duplexer, an antenna, etc. The embodiment of the present application does not impose any special restrictions on the intermodulation source.

[0041] When multiple source signals transmitted by the first antenna module 1 pass through the intermodulation source, the intermodulation source will be excited, and the source signals will be intermodulated at the intermodulation source with nonlinear characteristics to form intermodulation signals. The intermodulation signals will be received by the first antenna module 1, thereby interfering with the first antenna module 1's reception effect on the target signal. Specifically, the target signal received by the first antenna module 1 is weak in strength, has a high signal-to-noise ratio, and has poor stability.

[0042] In order to reduce the interference effect of the intermodulation source on the first antenna module 1, in this embodiment, as shown in Figures 1 to 11, a shielding member 3 is provided between the first antenna module 1 and the intermodulation source along the distribution direction X of the first antenna module 1 and the second antenna module 2. The shielding frequency of the shielding member 3 matches the frequency of the source signal and the intermodulation signal. The shielding member 3 is used to shield the signal transmission between the first antenna module 1 and the intermodulation source.

[0043] In this embodiment, the shielding member 3 is capable of reflecting and absorbing at least a portion of the source signal, reducing the risk of the source signal being transmitted to the intermodulation source. Simultaneously, the shielding member 3 is capable of reflecting and absorbing at least a portion of the intermodulation signal, reducing the risk of the intermodulation signal being transmitted to the first antenna module 1, thereby weakening the intensity of the intermodulation signal at the intermodulation source, thereby reducing the interference of the intermodulation signal on the target signal, and thereby improving the stability and accuracy of the first antenna module 1 in receiving the target signal, thereby improving the operating stability and reliability of the first antenna module 1 and the communication device. The shielding frequency of the shielding member 3 matches the frequency of the source signal and the intermodulation signal, reducing the shielding effect of the shielding member 3 on the signal of the second antenna module 2, thereby improving the stability and accuracy of the second antenna module 2 in transmitting and receiving signals, thereby improving the operating stability and reliability of the second antenna module 2 and the communication device.

[0044] As shown in Figures 1 to 4, the second antenna module 2 includes a cover 22, which encloses a housing cavity 23. The time-division duplex antenna 21 and the intermodulation source are located in the housing cavity 23 to improve the working stability of the time-division duplex antenna 21, thereby helping to extend the service life of the time-division duplex antenna 21.

[0045] In one embodiment, as shown in FIG. 1 to FIG. 8 , the shielding member 3 is mounted on the cover body 22 .

[0046] In this embodiment, the shielding member 3 is installed on the cover body 22 , which simplifies the installation structure of the shielding member 3 and reduces the installation cost of the shielding member 3 .

[0047] Specifically, as shown in Figures 2, 3 and 4, along the thickness direction of the cover body 22, the cover body 22 includes a first surface 221 and a second surface 222, the first surface 221 is exposed to the outside, and the second surface 222 is used to enclose a accommodating cavity 23, the shielding component 3 is arranged on the first surface 221 and covers at least a portion of the first surface 221, and / or, the shielding component 3 is arranged on the second surface 222 and covers at least a portion of the second surface 222, and / or, the shielding component 3 is located between the first surface 221 and the second surface 222.

[0048] In this embodiment, the shielding member 3 can be disposed on the outer surface, inner surface or interior of the cover body 22 to increase the flexibility of the disposition position of the shielding member 3 .

[0049] When the shielding member 3 is disposed on the first surface 221 , in one embodiment, as shown in FIG. 2 , the shielding member 3 is directly attached to the first surface 221 to simplify the installation structure of the shielding member 3 .

[0050] In another embodiment, as shown in FIG5 , the communication device includes a support member 4 mounted on the first surface 221 and covering at least a portion of the first surface 221 , and a shielding member 3 mounted on the support member 4 and covering at least a portion of the support member 4 .

[0051] In this embodiment, a support member 4 is provided on the first surface 221 , and the shielding member 3 is mounted on the support member 4 , which can facilitate installation and replacement of the shielding member 3 , thereby reducing installation and maintenance costs of the communication equipment.

[0052] Specifically, as shown in the figure, the shielding member 3 can be installed on the surface of the support member 4 on the side away from the second antenna module 2, that is, the shielding member 3 can be installed on the outer surface of the support member 4, so that the shielding member 3 is located between the first antenna module 1 and the support member 4; and / or, the shielding member 3 can be installed on the surface of the support member 4 on the side close to the second antenna module 2, that is, the shielding member 3 is installed on the inner surface of the support member 4, so that the shielding member 3 is located between the support member 4 and the second antenna module 2; and / or, the shielding member 3 can be arranged inside the support member 4 to increase the diversity of the installation position of the shielding member 3 on the support member 4.

[0053] In another embodiment, as shown in FIG. 9 to FIG. 14 , the shielding member 3 is mounted on the substrate 5 , and along the distribution direction of the first antenna module 1 and the second antenna module 2 , the shielding member 3 is located between the first antenna module 1 and the second antenna module 2 .

[0054] In this embodiment, the shielding member 3 is installed on the base 5, which reduces the risk of damage to the shielding member 3 and the second antenna module 2 during installation, thereby extending the service life of the shielding member 3 and the second antenna module 2 and improving the working stability of the second antenna module 2.

[0055] Specifically, in one embodiment, as shown in FIG9 , the shielding member 3 is directly mounted on the base 5 to simplify the mounting structure of the shielding member 3 and reduce the installation cost.

[0056] In another embodiment, as shown in Figures 10 to 14, the support member 4 is installed on the base 5, and along the distribution direction X of the first antenna module 1 and the second antenna module 2, at least a portion of the support member 4 is located between the first antenna module 1 and the intermodulation source, and the shielding member 3 is installed on the support member 4.

[0057] In this embodiment, the shielding member 3 is installed on the base 5 through the support member 4, which simplifies the connection structure between the shielding member 3 and the base 5, reduces the installation cost of the shielding member 3, and at the same time increases the connection strength between the shielding member 3 and the base 5, thereby increasing the installation stability of the shielding member 3.

[0058] Specifically, in one embodiment, as shown in Figures 10, 11, and 12, support member 4 is a plate-like structure, and the thickness direction of support member 4 is parallel to the distribution direction X of first antenna module 1 and second antenna module 2, so as to simplify the structure of support member 4 and reduce the cost of support member 4. In this case, shielding member 3 can be installed on the surface and / or inside support member 4, that is, shielding member 3 is located between support member 4 and the first antenna module, and / or, between support member 4 and the second antenna module, and / or, inside support member 4.

[0059] In another embodiment, as shown in FIG. 14 , the support member 4 encloses a shielding space 41 , and at least a portion of the second antenna module 2 is located in the shielding space 41 .

[0060] In this embodiment, the support member 4 is mounted on the base 5 and covers the outside of the second antenna module 2, thereby increasing the coverage area of ​​the second antenna module 2 by the support member 4, thereby facilitating an increase in the coverage area of ​​the shielding member 3, and further enhancing the shielding effect of the shielding member 3. In this case, the shielding member 3 can be mounted on the surface and / or inside the support member 4, that is, the shielding member 3 is located between the support member 4 and the first antenna module, and / or, the shielding member 3 is located between the support member 4 and the second antenna module, and / or, the shielding member 3 is located inside the support member 4.

[0061] In any of the above embodiments, the shielding member 3 can be a shielding film or a shielding net to increase the structural flexibility of the shielding member 3. The shielding film is a frequency-selective surface metal film layer, so that the shielding member 3 can reflect and absorb the source signal and the intermodulation signal without affecting the signal of the second antenna module 2, so that the second antenna module 2 can work normally, thereby improving the working stability of the second antenna module 2.

[0062] When the shielding member 3 is mounted on the surface of the cover body 22 and the support member 4, an adhesive layer is provided between the shielding member 3 and the cover body 22, and between the shielding member 3 and the support member 4, that is, the shielding member 3 is bonded and fixed to the cover body 22 and the shielding member 3 is bonded and fixed to the support member 4 through the adhesive layer. The side of the shielding member 3 away from the cover body 22 and the support member 4 can also be provided with a scratch-resistant layer and / or an anti-ultraviolet oxidation layer to extend the service life of the shielding member 3. When the shielding member 3 is a shielding film, and the shielding member 3 is mounted on the surface of the cover body 22 and the support member 4, a substrate layer is provided between the shielding member 3 and the adhesive layer, that is, the shielding member 3 is attached to the substrate layer, and then the substrate layer is bonded and fixed to the cover body 22, and the substrate layer is bonded and fixed to the support member 4 through the adhesive layer. The provision of the substrate layer can increase the strength of the shielding film, facilitate the installation of the shielding film, and reduce the installation cost.

[0063] When the shielding member 3 is a shielding net, the shielding net has good structural strength, can extend the service life of the shielding member 3, and is easy to install the shielding member 3, thereby helping to simplify the installation structure of the shielding member 3.

[0064] The shielding net includes multiple meshes 31, and the outline shape of the mesh 31 can be circular, quadrilateral, pentagonal, hexagonal or other deformed structures. The embodiment of the present application does not specifically limit the outline shape of the mesh 31 to increase the flexibility of the structural setting of the shielding net.

[0065] The angular frequency of the source signal of the first antenna module 1 is ω. As shown in FIG15 , when the outline shape of the mesh 31 is a circle, the diameter of the mesh 31 is d; as shown in FIG16 , when the outline shape of the mesh 31 is a quadrilateral, pentagon, hexagon or other polygonal structure, the diagonal length of the mesh 31 is L1; as shown in FIG15 and FIG16 , the shielding net includes a plurality of meshes 31, and along the distribution direction of the meshes 31, the side spacing between adjacent meshes 31 is L2; ​​the thickness of the shielding net is H; and the surface impedance of the shielding net is Z S Taking the circular mesh as an example, Z S ,ω,d,L2 satisfy: Z S =R S +jωL S

[0066] Among them, δ is the conductivity of the shielding mesh, μ0 is the vacuum permeability, μ r is the metal magnetic permeability, t W is the material diffusion time of the metal mesh, and Ι0 and Ι1 are correction coefficients.

[0067] In this embodiment, Z S , ω, d, and L2 satisfy the aforementioned formulas, ensuring that the outline dimensions of the mesh 31 match the frequency of the source signal, thereby improving the shielding effectiveness and, consequently, the operational stability of the shielding net. Depending on the frequency of the source signal, shielding nets with different apertures and hole spacings are required to meet the shielding requirements of the shielding net against the source signal. Typically, the mesh diameter d or diagonal length L2 is 2 mm to 10 mm, and the mesh spacing L1 is 2 to 10 mm.

[0068] In addition, the thickness H of the shielding net is 2-5 mm, so that the outline size of the mesh 31 matches the frequency of the source signal, which is beneficial to improving the shielding effect of the shielding net, and then improving the working stability of the shielding net. At the same time, it is beneficial to improve the structural strength of the shielding net and extend the service life of the shielding net.

[0069] It should be noted that the above description is only a specific implementation of the embodiment of the present application, but the scope of protection of the embodiment of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiment of the present application should be included in the scope of protection of the embodiment of the present application. Therefore, the scope of protection of the embodiment of the present application should be based on the scope of protection of the claims.

Claims

1. A communication device, characterized in that: The communication equipment includes: A first antenna module, the first antenna module comprising at least one frequency division duplex antenna; a second antenna module, the second antenna module comprising at least one time division duplex antenna and an intermodulation source, the signal frequency of the second antenna module being different from the signal frequency of the first antenna module; A shielding component, wherein the shielding frequency of the shielding component matches the signal frequency of the first antenna module, and along the distribution direction of the first antenna module and the second antenna module, the shielding component is located between the first antenna module and the intermodulation source, and is used to shield the signal transmission between the first antenna module and the intermodulation source.

2. The communication device according to claim 1, characterized in that: The second antenna module comprises a cover body, the cover body encloses a receiving cavity, and the time division duplex antenna and the intermodulation source are located in the receiving cavity; The shielding member is mounted on the cover.

3. The communication device according to claim 2, characterized in that: Along the thickness direction of the cover body, the cover body includes a first surface and a second surface, and the first surface is located on a side of the cover body away from the time division duplex antenna; The shielding member is bonded and fixed to the first surface; And / or, the communication device comprises a support member, the support member is mounted on the first surface, and the shielding member is mounted on the support member; and / or, the shielding member is disposed on the second surface and covers at least a portion of the second surface; And / or, the shielding element is located between the first surface and the second surface.

4. The communication device according to claim 1, characterized in that: The communication device comprises a substrate, and along the distribution direction of the first antenna module and the second antenna module, the shielding component is installed on the substrate and is located between the first antenna module and the second antenna module.

5. The communication device according to claim 4, characterized in that: The communication device includes a support member, and the shielding member is installed on the base through the support member. Along the distribution direction of the first antenna module and the second antenna module, at least part of the support member is located between the first antenna module and the intermodulation source, and the shielding member is installed on the support member.

6. The communication device according to claim 5, characterized in that: The support member encloses a shielding space, and at least a portion of the second antenna module is located in the shielding space.

7. The communication device according to claim 5 or 6, characterized in that: Along the thickness direction of the support member, the shielding member is located between the support member and the first antenna module, and / or the shielding member is located between the support member and the second antenna module, and / or the shielding member is located inside the support member.

8. The communication device according to any one of claims 1 to 6, characterized in that: The shielding member is a shielding film; The shielding film includes a frequency selective surface metal film layer.

9. The communication device according to claim 8, characterized in that: The shielding film includes one or more of a scratch-resistant layer, an anti-ultraviolet oxidation layer, and a substrate layer.

10. The communication device according to any one of claims 1 to 6, characterized in that: The shielding member is a shielding net.

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