Antenna module and communication equipment

Abstract

The embodiment of the utility model relates to the technical field of communication, and discloses an antenna module and communication equipment, and the antenna module comprises a resonant cavity, a circuit board, a feed assembly and a grounding plate. The resonant cavity comprises a first surface and a second surface which are oppositely arranged; the circuit board comprises a first conductive part, a second conductive part, a third conductive part and a fourth conductive part, a first gap unit is arranged between the first conductive part and the second conductive part, the third conductive part is provided with a second gap unit, the first gap unit is communicated with the second gap unit, and the fourth gap unit is communicated with the first gap unit. The third conductive part is embedded in the second conductive part, the second conductive part is embedded in the first conductive part, and the first conductive part, the second conductive part and the third conductive part are arranged on the first surface; the feed assembly is arranged on the circuit board. According to the embodiment of the invention, the antenna can achieve the coverage of multiple frequency bands, and achieves the purpose of miniaturization of the antenna.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to an antenna module and a communication device. Background Art

[0002] With the popularization of IoT devices and the advent of the Internet of Everything era, wireless communication technologies such as GPS and WiFi have been widely used. Among them, Wi-Fi6E, with its high speed, low latency and wide coverage, has become the mainstream standard for wireless communication at this stage. However, with the continuous reduction in the size of wireless mobile terminal products and the increase in communication frequency bands,

[0003] During the implementation of the embodiments of the present application, the inventors discovered that: in the context of the continuous reduction in the size of wireless mobile terminal products and the increase in communication frequency bands, Wi-Fi 6E antenna products only support a single frequency band, such as 2.4GHz or 5GHz, and cannot support multiple frequency bands at the same time. Utility Model Content

[0004] The main technical problem solved by the embodiments of the present application is to provide an antenna that can cover multiple frequency bands by setting a resonant cavity, a first conductive part, a second conductive part, a third conductive part, a first slot unit, and a second slot unit, and further achieve the purpose of miniaturization of the antenna.

[0005] To solve the above technical problems, a technical solution adopted in an embodiment of the present application is: providing an antenna module, including a resonant cavity, a circuit board, a feeding assembly and a ground plate; the resonant cavity includes a first surface and a second surface arranged opposite to each other; the circuit board includes a first conductive part, a second conductive part, a third conductive part and a fourth conductive part, a first gap unit is provided between the first conductive part and the second conductive part, the third conductive part is provided with a second gap unit, the first gap unit and the second gap unit are connected, the third conductive part is embedded in the second conductive part, the second conductive part is embedded in the first conductive part, and the first conductive part, the second conductive part and the third conductive part are arranged on the first surface; the feeding assembly is arranged on the circuit board.

[0006] Optionally, the second slit unit includes a first slit branch, a second slit branch and a third slit branch, both ends of the second slit branch are respectively connected to the first slit branch and the third slit branch, and the first slit branch and the second slit branch are arranged in parallel.

[0007] Optionally, the first gap unit includes a first L-shaped gap branch, a fourth gap branch, a second L-shaped gap branch and a fifth gap branch, one end of the fourth gap branch is connected to the first L-shaped gap branch, the other end of the fourth gap branch is connected to the first gap branch, one end of the fifth gap branch is connected to the second L-shaped gap branch, and the other end of the fifth gap branch is connected to the third gap branch.

[0008] Optionally, the circuit board further includes a fourth conductive portion, the fourth conductive portion is arranged on the second surface, the fourth conductive portion is provided with a third gap unit, and the third gap unit is electrically connected to the first gap unit and the second gap unit through the feeding component.

[0009] Optionally, the third slit unit includes a sixth slit branch, a seventh slit branch, an eighth slit branch and a ninth slit branch, the two ends of the seventh slit branch are respectively connected to the sixth slit branch and the eighth slit branch, the ninth slit branch and the tenth slit branch are respectively arranged vertically to the fourth conductive part, and the ninth slit branch and the tenth slit branch are arranged in parallel.

[0010] Optionally, the sixth slot branch, the seventh slot branch and the eighth slot branch together form a U-shaped groove.

[0011] Optionally, the antenna module further includes a grounding component, which is disposed on the circuit board and is used to connect to external elements.

[0012] Optionally, the grounding component includes a first grounding foam, a second grounding foam, a third grounding foam and a fourth grounding foam, the first grounding foam and the third grounding foam are arranged relative to the second grounding foam, the first grounding foam, the second grounding foam and the third grounding foam are arranged on the first surface, and the fourth grounding foam is arranged on the second surface.

[0013] In order to solve the above technical problems, another technical solution adopted in the embodiment of the present application is: providing a communication device, including any of the above antenna modules.

[0014] An embodiment of the present application provides an antenna module, including a resonant cavity, a circuit board and a feeding assembly; the resonant cavity includes a first surface and a second surface arranged opposite to each other; the circuit board includes a first conductive part, a second conductive part and a third conductive part, a first gap unit is provided between the first conductive part and the second conductive part, the third conductive part is provided with a second gap unit, the first gap unit and the second gap unit are connected, the third conductive part is embedded in the second conductive part, the second conductive part is embedded in the first conductive part, and the first conductive part, the second conductive part and the third conductive part are arranged on the first surface; the feeding assembly is arranged on the circuit board, and through the above arrangement, the first gap unit and the second gap unit respectively control the low-frequency 2.4GHZ-2.5GHZ signal output and the high-frequency 5.15GHZ-7.125GHZ signal output, and combined with the resonant cavity, one antenna module can achieve coverage of multiple frequency bands, and further achieve the purpose of miniaturization of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 is a schematic diagram of an antenna module according to an embodiment of the present application;

[0017] Figure 2 is another schematic diagram of the antenna module according to an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the antenna module according to an embodiment of the present application from another perspective;

[0019] Figure 4 This is a signal coverage diagram of the antenna module according to an embodiment of the present application;

[0020] Figure 5 This is an efficiency diagram of the antenna module according to an embodiment of the present application.

[0021] The figure numbers in the specific implementation manner are as follows: 100, antenna module; 10, resonant cavity; 20 circuit board; 201, first conductive part; 202, second conductive part; 203, third conductive part; 204, fourth conductive part; 205, first slot unit; 206, second slot unit; 207, third slot unit; 261, first slot branch; 262, second slot branch; 263, third slot branch; 251, first L-shaped slot branch; 252, fourth slot branch; 253, second L-shaped slot branch; 254, fifth slot branch; 271, sixth slot branch, 272, seventh slot branch; 273, eighth slot branch; 274, ninth slot branch; 30, grounding component; 301, first grounding foam; 302, second grounding foam; 303, third grounding foam; 304, fourth grounding foam. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed on" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "inside", "outside", "vertical", "horizontal", etc. used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0024] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0025] See also Figure 1 , Figure 2 and Figure 3The antenna module 100 includes: a resonant cavity 10, a circuit board 20 and a feeding component (not shown in the figure), the resonant cavity 10 includes a first surface (not shown in the figure) and a second surface (not shown in the figure) arranged opposite to each other, the circuit board 20 includes a first conductive portion 201, a second conductive portion 202 and a third conductive portion 203, a first slot unit 205 is provided between the first conductive portion 201 and the second conductive portion 202, the third conductive portion 203 is provided with a second slot unit 206, the first slot unit 205 and the The second gap unit 206 is connected, the third conductive part 203 is embedded in the second conductive part 202, the second conductive part 202 is embedded in the first conductive part 201, and the first conductive part 201, the second conductive part 202 and the third conductive part 203 are arranged on the first surface 101. The structural design of the resonant cavity 10 and the first conductive part 201, the first gap unit 205, the second conductive part 202, the third conductive part 203 and the second gap unit 206 achieves miniaturization and low cost. Please combine Figure 4 and Figure 5 , Figure 4 is the signal coverage diagram of the antenna module 100, Figure 5 This is an efficiency diagram of the antenna module 100. The first slot unit and the second slot unit achieve multi-band coverage of the 2.4GHz-2.5GHz and 5.15-7.125GHz frequency bands, providing efficient antenna performance and strong portability. Specifically, a signal can be fed into the first slot unit 205 and the second slot unit 206 through the resonant cavity 10, the first conductive portion 201, the second conductive portion 202, and the third conductive portion 203. By adjusting the length of the first slot unit 205 and the second slot unit 206, the resonant frequency of the resonant cavity 10 can be tuned. Finally, the signal can be radiated through the first slot unit 205 and the second slot unit 206.

[0026] Please continue reading Figure 2The second gap unit 206 includes a first gap branch 261, a second gap branch 262 and a third gap branch 263, the two ends of the second gap branch 262 are connected to the first gap branch 261 and the third gap branch respectively, and the first gap branch 261 and the second gap branch 262 are arranged in parallel, the first gap unit 205 includes a first L-shaped gap branch 251, a fourth gap branch 252, a second L-shaped gap branch 253 and a fifth gap branch 254, one end of the fourth gap branch 252 is connected to the first L-shaped gap branch 251, the other end of the fourth gap branch 252 is connected to the first gap branch 261, one end of the fifth gap branch 254 is connected to the second L-shaped gap branch 253, and the other end of the fifth gap branch 254 is connected to the third gap branch 263. Through the cooperation of the first conductive portion 201, the second conductive portion 202, the third conductive portion 203, and the first slot unit 205 and the second slot unit 206, the antenna module 100100 achieves multi-band coverage of the 2.4 GHz-2.5 GHz and 5.15-7.125 GHz frequency bands. Through the reasonable design of the first slot unit 205 and the second slot unit 206, effective coverage of the 2.4 GHz-2.5 GHz and 5.15-7.125 GHz frequency bands is achieved, meeting the current mainstream Wi-Fi frequency band requirements. The characteristics of the cavity antenna are utilized to improve the radiation efficiency of the antenna module 100, thereby achieving higher antenna performance. In addition, the cavity slot antenna does not require a clear area around it and can adapt to various complex environments. The L-shaped slot allows the slot length to be adjusted, which helps to control the radiation characteristics of the low-frequency band and achieve good broadband matching characteristics. The multiple slots are interconnected, which can enhance the coupling effect between the slots and improve the overall efficiency of the antenna.

[0027] In some embodiments, the first L-shaped slot branch 251 and the second L-shaped slot branch 253 are conducive to controlling the length of the slot, which helps to adjust the radiation characteristics of the antenna, and by adjusting the length and shape of the first L-shaped slot branch 251 and the second slot branch 262, it helps to optimize the radiation performance of the antenna and achieve miniaturization and broadband matching.

[0028] See also Figure 3The circuit board 20 further includes a fourth conductive portion 204, the fourth conductive portion 204 being provided on the second surface, the fourth conductive portion 204 being provided with a third slot unit 207, the third slot unit 207 being electrically connected to the first slot unit 205 and the second slot unit 206 through the feeding component, through the above connection method, the third slot branch 263 achieves coverage of the 5GHZ-7GHZ frequency band, specifically, the third slot unit 207 includes a sixth slot branch 271, a seventh slot branch 272, an eighth slot branch 273, a ninth slot branch 274 and a tenth slot branch 275 ... The two ends of the seventh slot branch 272 are respectively connected to the sixth slot branch 271 and the eighth slot branch, the ninth slot branch 274 and the tenth slot branch 275 are respectively arranged vertically on the fourth conductive part 204, and the ninth slot branch 274 and the tenth slot branch 275 are arranged in parallel, and the sixth slot branch 271, the seventh slot branch 272 and the eighth slot branch 273 are enclosed to form a U-shaped groove. The design of the U-shaped groove is conducive to controlling the length of the slot, which helps to adjust the radiation characteristics of the antenna, and by adjusting the length and shape of the third slot unit 207, it helps to optimize the radiation performance of the antenna and achieve miniaturization and broadband matching.

[0029] See also Figure 2 and Figure 3 The antenna module 100 also includes a grounding component 30, which is arranged on the circuit board 20 and is used to connect to external components. Specifically, the grounding component 30 includes a first grounding foam 301, a second grounding foam 302, a third grounding foam 303 and a fourth grounding foam 304. The first grounding foam 301 and the third grounding foam 303 are arranged relative to the second grounding foam 302. The first grounding foam 301, the second grounding foam 302 and the third grounding foam 303 are arranged on the first surface 101, and the fourth grounding foam 304 is arranged on the second surface. Through the above arrangement, it helps to balance the ground potential of the circuit board 20 and reduce signal interference. At the same time, the first grounding foam 301, the second grounding foam 302 and the third grounding foam 303 are all arranged on the first surface 101 of the circuit board 20, while the fourth grounding foam 304 is arranged on the second surface of the circuit board 20. This further enhances the grounding performance of the grounding component 30 , enabling the antenna module 100 to be better connected to external components and achieve stable grounding.

[0030] The embodiment of the present application provides an antenna module 100, including a resonant cavity 10, a circuit board 20, and a feeding assembly; the resonant cavity 10 includes a first surface 101 and a second surface arranged opposite to each other; the circuit board 20 includes a first conductive portion 201, a second conductive portion 202, and a third conductive portion 203, a first slot unit 205 is provided between the first conductive portion 201 and the second conductive portion 202, a second slot unit 206 is provided on the third conductive portion 203, the first slot unit 205 and the second slot unit 206 are connected, and the third conductive portion 203 is embedded in the second conductive portion 20 2. The second conductive portion 202 is embedded in the first conductive portion 201, and the first conductive portion 201, the second conductive portion 202 and the third conductive portion 203 are arranged on the first surface 101; the feeding component is arranged on the circuit board 20. Through the above arrangement, the first slot unit 205 and the second slot unit 205 respectively control the low-frequency 2.4GHZ-2.5GHZ signal output and the high-frequency 5.15GHZ-7.125GHZ signal output, and combined with the resonant cavity 10, an antenna module 100 can achieve coverage of multiple frequency bands, and further achieve the purpose of miniaturization of the antenna.

[0031] This application also provides a communication device embodiment, wherein the cleaning system includes the antenna module 100 described above. The specific structure and function of the communication device can be found in the above embodiment and will not be described in detail here. The above description is merely an embodiment of this application and does not limit the scope of the patent. Any equivalent structure or equivalent process transformation made using the contents of this application specification and drawings, or directly or indirectly applied to other related technical fields, is also included in the scope of patent protection of this application.

Claims

1. An antenna module, characterized in that: include: The resonant cavity comprises a first surface and a second surface arranged opposite to each other; A circuit board, the circuit board comprising a first conductive portion, a second conductive portion, and a third conductive portion, wherein a first slit unit is provided between the first conductive portion and the second conductive portion, the third conductive portion is provided with a second slit unit, the first slit unit and the second slit unit are connected, the third conductive portion is embedded in the second conductive portion, the second conductive portion is embedded in the first conductive portion, and the first conductive portion, the second conductive portion, and the third conductive portion are provided on the first surface; The feeding component is arranged on the circuit board.

2. The antenna module according to claim 1, wherein: The second slit unit includes a first slit branch, a second slit branch and a third slit branch. Both ends of the second slit branch are connected to the first slit branch and the third slit branch respectively, and the first slit branch and the second slit branch are arranged in parallel.

3. The antenna module according to claim 2, wherein: The first gap unit includes a first L-shaped gap branch, a fourth gap branch, a second L-shaped gap branch and a fifth gap branch, one end of the fourth gap branch is connected to the first L-shaped gap branch, the other end of the fourth gap branch is connected to the first gap branch, one end of the fifth gap branch is connected to the second L-shaped gap branch, and the other end of the fifth gap branch is connected to the third gap branch.

4. The antenna module according to claim 1, wherein: The circuit board further includes a fourth conductive portion, which is disposed on the second surface. The fourth conductive portion is provided with a third slot unit, and the third slot unit is electrically connected to the first slot unit and the second slot unit through the feeding component.

5. The antenna module according to claim 4, wherein: The third slit unit includes a sixth slit branch, a seventh slit branch, an eighth slit branch, a ninth slit branch and a tenth slit branch, the two ends of the seventh slit branch are respectively connected to the sixth slit branch and the eighth slit branch, the ninth slit branch and the tenth slit branch are respectively arranged vertically to the fourth conductive part, and the ninth slit branch and the tenth slit branch are arranged in parallel.

6. The antenna module according to claim 5, wherein: The sixth slot branch, the seventh slot branch and the eighth slot branch together form a U-shaped groove.

7. The antenna module according to claim 6, wherein: The antenna module further includes a grounding component, which is disposed on the circuit board and is used to connect to external components.

8. The antenna module according to claim 7, wherein: The grounding component includes a first grounding foam, a second grounding foam, a third grounding foam and a fourth grounding foam. The first grounding foam and the third grounding foam are arranged relative to the second grounding foam. The first grounding foam, the second grounding foam and the third grounding foam are arranged on the first surface, and the fourth grounding foam is arranged on the second surface.

9. A communication device, characterized in that: The invention comprises the antenna module according to any one of claims 1 to 8.

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