An antenna and a communication device

Abstract

This application relates to the field of antenna technology, disclosing an antenna and a communication device. The antenna includes a dielectric substrate, a radiating layer, and a connecting cable. The radiating layer is disposed on the dielectric substrate and includes multiple radiating branches. Each radiating branch is used to receive or transmit electromagnetic wave signals in a corresponding frequency band. The radiating layer has a symmetrical structure and two interchangeable connection endpoints. One connection endpoint can be selectively used as a feed terminal or a ground terminal. One end of the connecting cable is connected to the radiating layer, and the connecting cable provides a signal transmission channel for the antenna wiring. Through the above method, this application embodiment enables the antenna to simultaneously cover multiple frequency bands from WIFI 2.4-2.5GHz to WIFI 7, meeting the multi-band requirements of modern wireless communication devices.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular to an antenna and a communication device. Background Technology

[0002] With the rapid development of wireless communication technology, people's reliance on wireless networks is constantly deepening. Whether it's everyday smartphones and tablets, smart home devices, or enterprise-level wireless access points, all rely on stable and efficient wireless connections. Currently, multi-band communication has become a trend, with different frequency bands supporting a wide variety of application needs.

[0003] During the implementation of this application, the inventors discovered that existing antenna technology has limited frequency band coverage; one antenna can only cover one frequency band, which cannot meet the simultaneous needs of multiple devices for different frequency bands. Utility Model Content

[0004] The main technical problem solved by the embodiments of this application is to provide an antenna that, through a symmetrically designed radiating layer and interchangeable connection endpoints, enables flexible interchangeability between the feed end and the ground end, greatly simplifies the installation process, reduces installation difficulty and the probability of erroneous operation, and enables the antenna to simultaneously cover multiple frequency bands from WIFI 2.4-2.5GHz to WIFI 7, meeting the multi-band requirements of modern wireless communication devices.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: to provide an antenna, including a dielectric substrate, a radiating layer, and a connecting cable. The radiating layer is disposed on the dielectric substrate and includes multiple radiating branches. Each radiating branch is used to receive or transmit electromagnetic wave signals in a corresponding frequency band. The radiating layer has a symmetrical structure and two interchangeable connection terminals are provided on the radiating layer. One of the connection terminals can be selectively used as a feed terminal or a ground terminal. One end of the connecting cable is connected to the radiating layer and the connecting cable is used to provide a signal transmission channel for the antenna wiring.

[0006] Optionally, the radiating layer is provided with slot components, each corresponding to a different frequency band, and the slot components are used to enable the antenna to resonate in different frequency bands.

[0007] Optionally, the slot assembly includes a first slot, a second slot, and a third slot, wherein the first slot is symmetrically arranged with respect to the second slot and the third slot.

[0008] Optionally, the slot assembly further includes a fourth slot and a fifth slot, wherein the fourth slot is symmetrically arranged with respect to the second slot and the fifth slot.

[0009] Optionally, one end of the second slot is vertically connected to the dielectric substrate, and one end of the second slot extends with a first slit branch and a second slit branch, the first slit branch being in communication with the second slit branch.

[0010] Optionally, the radiating branch includes a first radiating branch, a second radiating branch, and a third radiating branch, each of which is electrically isolated by the slot assembly.

[0011] Optionally, the first radiating branch is symmetrically arranged with respect to the second radiating branch and the third radiating branch.

[0012] Optionally, the radiation layer is further provided with an oil film protective layer.

[0013] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a communication device including any of the antennas mentioned above.

[0014] This application provides an antenna, including a dielectric substrate, a radiating layer, and a connecting cable. The radiating layer is disposed on the dielectric substrate and includes multiple radiating branches. Each radiating branch is used to receive or transmit electromagnetic wave signals in a corresponding frequency band. The radiating layer has a symmetrical structure and two interchangeable connection terminals. One of the connection terminals can be selectively used as a feed terminal or a ground terminal. One end of the connecting cable is connected to the radiating layer and provides a signal transmission channel for the antenna wiring. Through the symmetrical design of the radiating layer and the interchangeable connection terminals, the feed terminal and the ground terminal can be flexibly interchanged, greatly simplifying the installation process and reducing the installation difficulty and probability of incorrect operation. This design also optimizes the electrical performance of the antenna and reduces the performance degradation caused by improper installation. Multiple radiating branches are carefully designed for different frequency bands, enabling the antenna to simultaneously cover multiple frequency bands from WIFI 2.4-2.5GHz to WIFI 7, meeting the multi-band requirements of modern wireless communication devices. The combination structure of the dielectric substrate and connecting cable ensures stable and reliable signal transmission. At the same time, the material selection and structural design take into account the balance between cost and performance, reducing production costs and improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

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

[0017] Figure 2 This is another schematic diagram of the antenna in an embodiment of this application;

[0018] Figure 3 This is the S11 parameter frequency diagram of the antenna in the embodiment of this application;

[0019] Figure 4 This is a radiation efficiency diagram of the antenna in the embodiment of this application;

[0020] Figure 5 This is a gain diagram of the antenna in an embodiment of this application. Detailed Implementation

[0021] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0023] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0024] Please see Figure 1 The antenna 100 includes: a dielectric substrate 10, a radiating layer 20, and a connecting cable (not shown).

[0025] The dielectric substrate 10 is made of FR4 material with a thickness of 1.6 mm, which has good electrical and mechanical properties and provides a stable support structure for the antenna 100.

[0026] Reference Figure 1As shown, the radiating layer 20 is disposed on the surface of the dielectric substrate 10 and is constructed through a special wiring pattern, carefully designed to achieve effective reception and transmission of signals in multiple frequency bands. The radiating layer 20 includes multiple radiating branches, each used to receive or transmit electromagnetic wave signals in a corresponding frequency band. Specifically, when in the 2.4-2.5 GHz frequency band, a standing wave is formed on a specific radiating branch; in other frequency bands such as 5.15-5.85 GHz or 5.95-7.125 GHz, the radiating branches generate a specific current distribution. The radiating layer 20 adopts a symmetrical structural design and has two interchangeable connection terminals 24, one of which can be selectively used as a feed terminal or a ground terminal, and the other connection terminal 24 is used as a ground terminal or a feed terminal accordingly. One end of a connecting cable (not shown) is connected to the connection terminal 24 on the radiating layer 20, and the other end can be connected to the signal processing circuit of the communication device to provide a stable signal transmission channel for the antenna 100 wiring.

[0027] In this embodiment of the application, in order to improve the durability and resistance to environmental interference of the antenna 100, an oil film protective layer (not shown) is provided on the surface of the radiating layer 20.

[0028] The oil film protective layer is made of environmentally friendly insulating material and covers the entire surface of the radiating layer. This protective layer effectively prevents the antenna 100 from being damaged by environmental factors such as oxidation, moisture, and dust during use, extending the service life of the antenna 100. Furthermore, the oil film protective layer has good electrical insulation properties and will not affect the electrical performance or signal transmission efficiency of the antenna 100. Figure 3 The performance test results shown in the graph indicate this.

[0029] like Figure 3 The S11 parameter diagram shown is based on the structural design of this embodiment. The antenna 100 has an S11 of -21.38402dB at 2.4GHz and -14.81694dB at 2.5GHz, indicating that the antenna 100 and the feed line are well matched and the signal reflection is small.

[0030] Reference Figure 4 The radiation efficiency diagram shown demonstrates that antenna 100 exhibits excellent radiation efficiency across various frequency bands, such as -0.0282453 dB at 2.4 GHz and -0.1490597 dB at 7.125 GHz, enabling antenna 100 to convert more electrical energy into electromagnetic waves for radiation.

[0031] like Figure 5 As shown in the gain diagram, antenna 100 exhibits outstanding gain performance, with a gain of 1.92172 dBi at 2.4 GHz and a gain of 5.023493 dBi at 7.125 GHz, enhancing the signal transmission and reception capabilities of antenna 100 in specific directions.

[0032] Please see Figure 1 and Figure 2 The radiating layer is provided with slot components 30, each corresponding to a different frequency band. These slot components 30 are used to enable the antenna 100 to resonate in different frequency bands. Specifically, they enable the antenna 100 to resonate in multiple frequency bands, such as 2.4-2.5 GHz, 5.15-5.85 GHz, and 5.95-7.125 GHz, achieving multi-band coverage. By setting the slot components 30, their design allows the antenna 100 to generate specific current distributions at different frequencies. By changing the current path and distribution characteristics, the resonant frequency and radiation characteristics of the antenna 100 are adjusted.

[0033] Specifically, the slot assembly 30 includes a first slot 31, a second slot 32, and a third slot 33, wherein the first slot 33 is symmetrically arranged about the second slot 32 and the third slot 33, forming a symmetrical structure. The first slot 31 is used to tune the resonant characteristics in the 2.4-2.5 GHz frequency band. The second slot 32 is mainly optimized for the 5.15-5.85 GHz frequency band; the third slot 33 is mainly optimized for the 5.95-7.125 GHz frequency band.

[0034] The slot assembly 30 also includes a fourth slot 34 and a fifth slot 35 for further expanding and optimizing the frequency band coverage capability of the antenna 100. (Refer to...) Figure 2 The fourth slot 34 is symmetrically arranged with respect to the second slot 32 and the fifth slot 35, which enhances the symmetry performance and resonance characteristics of the antenna 100.

[0035] This symmetrically arranged slot component 30 design makes the current distribution of the antenna 100 more uniform across all frequency bands, resulting in higher radiation efficiency.

[0036] Please continue to refer to this. Figure 2 One end of the second slot 35 is vertically connected to the dielectric substrate 10, ensuring a stable connection and good electrical performance between the second slot 35 and the dielectric substrate 10.

[0037] Reference Figure 2 One end of the second slot 32 extends to a first slit branch 321 and a second slit branch 322. These two slit branches are interconnected to form a special current path. Through the interconnection design of the first slit branch 321 and the second slit branch 322, a specific current path is formed at different frequencies, so that electromagnetic energy can be efficiently radiated into space.

[0038] Please see Figure 3The radiating branches include a first radiating branch 21, a second radiating branch 22, and a third radiating branch 23. These three radiating branches are all disposed on the dielectric substrate 10 and constitute the main radiating portion of the radiating layer 20. These radiating branches are electrically isolated by the aforementioned slot assembly 30, enabling different radiating branches to form independent resonances for specific frequency bands, thereby achieving multi-band coverage.

[0039] The first radiating branch 21 is symmetrically arranged about the second radiating branch 22 and the third radiating branch 23, forming an overall symmetrical structure.

[0040] This application provides an antenna 100, including a dielectric substrate 10, a radiating layer 20, and a connecting cable (not shown). The radiating layer 20 is disposed on the dielectric substrate 10 and includes multiple radiating branches. Each radiating branch is used to receive or transmit electromagnetic wave signals in a corresponding frequency band. The radiating layer has a symmetrical structure and two interchangeable connection terminals 24. One of the connection terminals can be selectively used as a feed terminal or a ground terminal. One end of the connecting cable is connected to the radiating layer and is used to provide a signal transmission channel for the antenna 100 wiring. Through the symmetrical design of the radiating layer 20 and the interchangeable connection terminals, the flexible interchangeability of the feed terminal and the ground terminal is realized, which greatly simplifies the installation process, reduces the installation difficulty and the probability of incorrect operation. This design also optimizes the electrical performance of the antenna 100 and reduces the performance degradation caused by improper installation. Multiple radiating branches are carefully designed for different frequency bands, enabling the antenna 100 to simultaneously cover multiple frequency bands from WIFI 2.4-2.5GHz to WIFI 7, meeting the multi-band requirements of modern wireless communication devices. The combination structure of the dielectric substrate and connecting cable ensures stable and reliable signal transmission. At the same time, the material selection and structural design take into account the balance between cost and performance, reducing production costs and improving production efficiency.

[0041] The antenna 100 in this embodiment can be integrated into communication devices, including but not limited to wireless routers, smart home devices, wireless access points, and IoT terminals.

[0042] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An antenna, characterized in that, include: Dielectric substrate; A radiating layer is disposed on the dielectric substrate. The radiating layer includes multiple radiating branches, each of which is used to receive or transmit electromagnetic wave signals in a corresponding frequency band. The radiating layer has a symmetrical structure and is provided with two interchangeable connection terminals. One of the connection terminals can be selectively used as a feed terminal or a ground terminal. A connecting cable, one end of which is connected to the radiation source, is used to provide a signal transmission channel for the antenna wiring.

2. The antenna according to claim 1, characterized in that, The radiating layer is provided with slot components, each corresponding to a different frequency band, and the slot components are used to enable the antenna to resonate in different frequency bands.

3. The antenna according to claim 2, characterized in that, The slot assembly includes a first slot, a second slot, and a third slot, wherein the first slot is symmetrically arranged with respect to the second slot and the third slot.

4. The antenna according to claim 3, characterized in that, The slot assembly further includes a fourth slot and a fifth slot, wherein the fourth slot is symmetrically arranged with respect to the second slot and the fifth slot.

5. The antenna according to claim 3, characterized in that, One end of the second slot is vertically connected to the dielectric substrate, and one end of the second slot extends to have a first slit branch and a second slit branch, the first slit branch being in communication with the second slit branch.

6. The antenna according to claim 5, characterized in that, The radiating branch includes a first radiating branch, a second radiating branch, and a third radiating branch, each of which is electrically isolated by the slot assembly.

7. The antenna according to claim 6, characterized in that, The first radiating branch is symmetrically arranged with respect to the second radiating branch and the third radiating branch.

8. The antenna according to claim 1, characterized in that, The radiation layer is also provided with an oil film protective layer.

9. A communication device, characterized in that, Including the antenna as described in any one of claims 1-8.

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