Antenna unit and communication equipment
By combining the antenna unit design with metal frames and radiation units, the mutual interference problem of multi-band antennas in wireless mobile terminals is solved, multi-band coverage and efficient signal transmission are achieved, adapted to different network environments, and the universality and flexibility of the equipment are improved.
Patent Information
- Application Number
- CN202422398044.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-29
AI Technical Summary
In wireless mobile terminals, as the number of antennas increases, the problem of interfering with each other, especially the Wi-Fi6E antenna cannot support multiple frequency bands at the same time, resulting in poor isolation control.
An antenna unit design including metal frames and radiation units is adopted. Through the combination of substrate, antenna radiator, metal ground plate and coaxial feeder, multi-band coverage is achieved, the radiation area and frequency band coverage width are enhanced, the coupling effect is reduced, and the isolation and signal stability are improved.
Multi-band coverage is achieved, the radiation efficiency and signal independence of the antenna are improved, the adaptability and flexibility of the equipment are improved, and the miniaturization of the antenna is ensured.
Smart Images
Figure CN223285275U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of antenna technology, and in particular to an antenna unit 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 this application, the inventors discovered that in order to achieve faster transmission rates, more antennas are needed to transmit and receive wireless signals, and the terminal requires at least multiple antennas that support different frequency bands. As the number of antennas increases and they coexist in the same environment, antennas can easily interfere with each other due to poor isolation control. For example, Wi-Fi 6E antenna products only support a single frequency band, 2.4 GHz or 5 GHz, and cannot support multiple frequency bands simultaneously. Utility Model Content
[0004] The main technical problem solved by the embodiments of the present application is to provide an antenna unit, which improves the frequency band coverage width and adjustability by combining a metal frame and a radiation unit, can provide a larger radiation area, achieve multi-band coverage, meet the needs of different application scenarios, and thus improve the radiation efficiency of the antenna unit.
[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the present application is: providing an antenna unit, including a first metal frame, a second metal frame, a substrate, an antenna radiator, a metal ground plate and a coaxial feed line, one end of the substrate is connected to the first metal frame, and the other end of the substrate is connected to the second metal frame; the antenna radiator is arranged on the substrate, and the antenna radiator is provided with a gap; the metal ground plate is respectively connected to the antenna radiator; the coaxial feed line is respectively connected to the antenna radiator and the metal ground plate.
[0006] Optionally, the first metal frame includes a first metal radiation portion and a second metal radiation portion, one end of the first metal radiation portion is connected to the substrate, and the other end of the first metal radiation portion is bent and connected to the second metal radiation portion.
[0007] Optionally, the second metal frame includes a third metal radiation portion and a fourth metal radiation portion, one end of the third metal radiation portion is connected to the substrate, and the other end of the third metal radiation portion is connected to the fourth metal radiation portion.
[0008] Optionally, the antenna radiation portion includes a first radiation branch and a second radiation branch, one end of the first radiation branch is connected to the second radiation branch, a gap is provided between the other end of the first radiation branch and one end of the second radiation branch, and the radiation frequencies of the first radiation branch and the second radiation branch are different.
[0009] Optionally, the gap is connected to the notch.
[0010] Optionally, the first radiating branch further includes a first connecting branch and a second connecting branch, and the first connecting branch and the second connecting branch are connected in a bent manner.
[0011] Optionally, the substrate is provided with a feeding point, the metal ground plate is provided with a grounding point, one end of the coaxial feed line is connected to the grounding point and the feeding point respectively, and the other end of the coaxial feed line is used to connect to the electronic component.
[0012] Optionally, the metal grounding plate includes a first rectangular grounding portion and a second rectangular grounding portion, the first rectangular grounding portion and the second rectangular grounding portion are connected, and the area of the second rectangular grounding portion is larger than that of the first rectangular grounding portion.
[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 units.
[0014] An embodiment of the present application provides an antenna unit, including a first metal frame, a second metal frame, a substrate, an antenna radiator, a metal ground plate and a coaxial feeder, wherein one end of the substrate is connected to the first metal frame, and the other end of the substrate is connected to the second metal frame; the antenna radiator is arranged on the substrate, and the antenna radiator is provided with a gap; the metal ground plates are respectively connected to the antenna radiators; the coaxial feeder is respectively connected to the antenna radiator and the metal ground plate. Through the above arrangement, multiple frequency bands including WIFI 2.4-2.5 GHZ, WIFI 5.15-5.85 GHZ, and WIFI 6E can be covered simultaneously, solving the problem of too many antennas in a multi-band communication system. In addition, by combining the metal frame and the radiating unit, the frequency band coverage width and adjustability are improved, a larger radiation area can be provided, multi-band coverage is achieved, and the needs of different application scenarios are met, thereby improving the radiation efficiency of the antenna unit. 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 This is a schematic diagram of an antenna unit mounted on a communication device according to an embodiment of the present application;
[0017] Figure 2 yes Figure 1 Enlarged view of part A in the middle;
[0018] Figure 3 This is a schematic diagram showing another perspective of the antenna unit of an embodiment of the present application being mounted on a communication device;
[0019] Figure 4 yes Figure 3 Enlarged view of middle part B;
[0020] Figure 5 yes Figure 3 Another enlarged view of the middle B section;
[0021] Figure 6 This is a diagram of the high-frequency signal transmission rate of the antenna unit in an embodiment of the present application;
[0022] Figure 7 This is a diagram of the low-frequency signal transmission rate of the antenna unit in an embodiment of the present application.
[0023] The figure numbers in the specific implementation manner are as follows: 100, antenna unit; 10, first metal frame; 101, first metal radiation part; 102, second metal radiation part; 20, second metal frame; 201, third metal radiation part; 202, fourth metal radiation part; 30, substrate; 40, antenna radiator; 401, gap; 402, first radiation branch; 421, first connecting branch; 422, second connecting branch; 403, second radiation branch; 404, notch; 50, metal ground plate; 501, first rectangular grounding part; 502, second rectangular grounding part. DETAILED DESCRIPTION
[0024] 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.
[0025] 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.
[0026] 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.
[0027] See also Figure 1 and Figure 2The antenna unit 100 includes: a first metal frame 10, a second metal frame 20, a substrate 30, an antenna radiator 40, a metal ground plate 50 and a coaxial feeder (not shown). One end of the substrate 30 is connected to the first metal frame 10, and the other end of the substrate 30 is connected to the second metal frame 20, which effectively increases the radiation area of the antenna unit 100, thereby enhancing the signal transmission and reception strength, helping to expand the coverage range of the wireless signal and improve the communication quality; the antenna radiator 40 is arranged on the substrate 30, and the antenna radiator 40 is provided with a slot 401. The slot 401 provided on the antenna radiator 40 can optimize the frequency response of the antenna, enabling it to support multiple wireless communication frequency bands WIFI 2.4GHz-2.5GHz, WIFI 5.15GHz-5.85GHz, and WIFI 6E. This multi-band support capability enables the antenna unit 100 to adapt to different network environments, improving the versatility and flexibility of the device. At the same time, by setting the gap 401, the coupling effect of the antenna radiator 40 can be reduced, the isolation can be improved, and the independence and clarity of signals in different frequency bands can be ensured; the metal ground plate 50 is respectively connected to the antenna radiator 40; the coaxial feed line 60 is respectively connected to the antenna radiator 40 and the metal ground plate 50, which helps to shield external electromagnetic interference and improve the stability of the antenna signal. Please combine Figure 6 and Figure 7 , Figure 6 is a diagram of the high-frequency signal transmission rate of the antenna unit 100, Figure 7 : is a low-frequency signal transmission rate diagram of the antenna unit 100. Through the above setting, full coverage of the low-frequency band can be achieved while the high-frequency band is also fully covered. While achieving high-speed communication, the miniaturization of the antenna 100 is ensured.
[0028] In the embodiment of the present application, the antenna unit 100 adopts a compact structural design, integrating the antenna radiator 40 and the metal ground plate 50 between the substrate 30 and the first metal frame 10 and the second metal frame 20, effectively utilizing the limited space of the device, so that the antenna unit 100 can be easily integrated into various portable devices, such as laptops, tablets, etc., without significantly increasing the volume and weight of the device.
[0029] In the embodiment of the present application, by adjusting the size and shape of the antenna radiator 40 and the parameters of the slot 401 , the performance of the antenna can be flexibly optimized to meet the needs of different application scenarios.
[0030] See also Figure 3 and Figure 4The first metal frame 10 includes a first metal radiation portion 101 and a second metal radiation portion 102, one end of the first metal radiation portion 101 is connected to the substrate 30, and the other end of the first metal radiation portion 101 is bent and connected to the second metal radiation portion 102, the second metal frame 20 includes a third metal radiation portion 201 and a fourth metal radiation portion 202, one end of the third metal radiation portion 201 is connected to the substrate 30, and the other end of the third metal radiation portion 201 is connected to the fourth metal radiation portion 202. As a part of the antenna unit 100, the conductive performance of the metal frame helps to shield external electromagnetic interference signals and protect the antenna radiator 40 from interference. Through the above arrangement, the first metal frame 10 and the antenna radiator 40 cooperate with each other to transmit a signal frequency of 5.15GHZ-5.85GHZ, and the second metal frame 20 and the antenna radiator 40 cooperate with each other to transmit a signal frequency of 5.85GHZ-7.125GHZ.
[0031] Please continue reading Figure 4 The antenna radiator 40 includes a first radiating branch 402 and a second radiating branch 403, one end of the first radiating branch 402 is connected to the second radiating branch 403, and a gap 404 is provided between the other end of the first radiating branch 402 and one end of the second radiating branch 403, and the radiation frequencies of the first radiating branch 402 and the second radiating branch 403 are different, and the gap 401 is connected to the gap 404. By adjusting the size and shape of the first radiating branch 402 and the second radiating branch 403 and the size of the gap 404 between them, the resonant frequency of the antenna can be flexibly adjusted. This adjustability enables the antenna unit 100 to adapt to different frequency band requirements and improve the versatility and flexibility of the product. By setting the gap 404, the bandwidth and radiation efficiency of the antenna can be optimized, and the gap 404 can serve as a resonant cavity to guide electromagnetic waves to propagate between the radiating branches and enhance the radiation intensity of a specific frequency band. At the same time, the connection between the gap 404 and the gap 401 further promotes the radiation and reception of electromagnetic waves and improves the overall performance of the antenna unit 100. Through the above setting, the first radiation branch 402 and the gap 401 cooperate to transmit a signal frequency of 2.4GHZ-2.5GHZ, and the second radiation branch 403 and the gap 401 cooperate to transmit a signal frequency of 5.85GHZ-7.125GHZ. Since each radiation branch has a different radiation frequency, the interaction between them may cause unnecessary interference. By setting the gap 404, it helps to reduce the interference and coupling effects between different frequency bands, ensuring that each frequency band can transmit signals independently and clearly.
[0032] For details, please refer to Figure 5The first radiation branch 402 further includes a first connecting branch 421 and a second connecting branch 422 , and the first connecting branch 421 and the second connecting branch 422 are bent and connected.
[0033] In an embodiment of the present application, the substrate 30 is provided with a feeding point (not shown), the metal ground plate 50 is provided with a grounding point (not shown), one end of the coaxial feeder is connected to the grounding point and the feeding point respectively, and the other end of the coaxial feeder is used to connect to the electronic component, so that the antenna unit 100 can be flexibly integrated into various electronic devices, such as mobile phones, routers, laptops, etc. The coaxial feeder serves as an energy transmission channel between the antenna and the electronic component, ensuring efficient signal transmission. The feeder is provided on the substrate 30 and is tightly connected to the antenna radiator 40, and can directly transfer energy to the antenna radiator 40, while the grounding point is connected to the feeding point through the coaxial feeder, forming a complete energy transmission path. This design reduces energy loss during transmission and improves the radiation efficiency of the antenna.
[0034] In an embodiment of the present application, the metal ground plate 50 includes a first rectangular grounding portion 501 and a second rectangular grounding portion 502. The first rectangular grounding portion 501 and the second rectangular grounding portion 502 are connected, and the area of the second rectangular grounding portion 502 is larger than that of the first rectangular grounding portion 501, which can optimize the current distribution in the antenna unit 100. The second rectangular grounding portion 502 can more effectively absorb and disperse the current from the antenna radiator 40, reduce the reflection and concentration of the current on the ground plate, thereby improving the radiation efficiency and directivity of the antenna.
[0035] The present embodiment provides an antenna unit 100, comprising a first metal frame 10, a second metal frame 20, a substrate 30, an antenna radiator 40, a metal ground plate 50, and a coaxial feeder. One end of the substrate 30 is connected to the first metal frame 10, and the other end is connected to the second metal frame 20. The antenna radiator 40 is disposed on the substrate 30 and has a slot 401 disposed therein. The metal ground plate 50 is connected to each of the antenna radiators 40. The coaxial feeder connects each of the antenna radiators 40 and the metal ground plate 50. This arrangement enables simultaneous coverage of multiple frequency bands, including Wi-Fi 2.4-2.5 GHz, Wi-Fi 5.15-5.85 GHz, and Wi-Fi 6E. This addresses the issue of excessive antenna count in multi-band communication systems. Furthermore, the combination of the metal frame and the radiator improves frequency band coverage and adjustability, providing a larger radiation area and achieving multi-band coverage to meet the needs of various application scenarios, thereby enhancing the radiation efficiency of the antenna unit 100.
[0036] The embodiment of the present invention further provides a communication device 200 , and the specific implementation manner can refer to the above-mentioned antenna unit 100 , which will not be described in detail here.
[0037] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. An antenna unit, characterized in that: include: First metal frame; Second metal frame; a substrate, one end of the substrate being connected to the first metal frame, and the other end of the substrate being connected to the second metal frame; an antenna radiator, the antenna radiator being disposed on the substrate and having a gap; a metal ground plate connected to the antenna radiator; A coaxial feed line is connected to the antenna radiator and the metal ground plate respectively.
2. The antenna unit according to claim 1, wherein: The first metal frame includes a first metal radiation portion and a second metal radiation portion. One end of the first metal radiation portion is connected to the substrate, and the other end of the first metal radiation portion is bent and connected to the second metal radiation portion.
3. The antenna unit according to claim 1, wherein: The second metal frame includes a third metal radiation portion and a fourth metal radiation portion. One end of the third metal radiation portion is connected to the substrate, and the other end of the third metal radiation portion is connected to the fourth metal radiation portion.
4. The antenna unit according to claim 1, wherein: The antenna radiation portion includes a first radiation branch and a second radiation branch, one end of the first radiation branch is connected to the second radiation branch, a gap is provided between the other end of the first radiation branch and one end of the second radiation branch, and the radiation frequencies of the first radiation branch and the second radiation branch are different.
5. The antenna unit according to claim 4, characterized in that The slit is communicated with the notch.
6. The antenna unit according to claim 4, characterized in that The first radiating branch further includes a first connecting branch and a second connecting branch, and the first connecting branch and the second connecting branch are connected in a bent manner.
7. The antenna unit according to claim 1, wherein: The substrate is provided with a feeding point, the metal ground plate is provided with a grounding point, one end of the coaxial feed line is connected to the grounding point and the feeding point respectively, and the other end of the coaxial feed line is used to connect to the electronic component.
8. The antenna unit according to claim 1, wherein: The metal ground plate includes a first rectangular ground portion and a second rectangular ground portion, the first rectangular ground portion and the second rectangular ground portion are connected, and the area of the second rectangular ground portion is larger than that of the first rectangular ground portion.
9. A communication device, characterized in that: The antenna unit comprises the antenna unit according to any one of claims 1 to 8.