Dielectric lens antenna and wireless communication equipment
By combining a dielectric lens antenna with multiple antenna elements and a lens body, the problem of insufficient signal gain in wireless communication devices is solved, achieving high-gain signal transmission and wide coverage in the 2.4G and 5G frequency bands, thus improving the user experience.
Patent Information
- Application Number
- CN202423160271.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing wireless communication devices have low built-in antenna gain, resulting in weak signal coverage, especially when facing indoor walls, which has poor penetration ability and affects user experience.
A dielectric lens antenna is combined with a dual-polarized directional antenna unit, a first vertically polarized omnidirectional antenna unit, and a second vertically polarized omnidirectional antenna unit, all integrated with a lens body. The lens body then performs beamforming and focusing of electromagnetic waves, thereby improving signal gain.
Significantly improves signal penetration and coverage in 2.4G and 5G bands, enhancing user experience.
Smart Images
Figure CN223539886U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wireless communication technology, and in particular to dielectric lens antennas and wireless communication devices. Background Technology
[0002] With the rapid development of wireless communication technology, data transmission and exchange via wireless networks have become a basic functional configuration of devices.
[0003] The ability of wireless communication devices to ensure stable wireless signal transmission in complex and ever-changing environments depends on the coverage capability of their built-in antennas. Currently, most built-in antennas in wireless communication devices are omnidirectional antennas. However, omnidirectional antennas have lower gain and poor penetration through indoor walls, resulting in weak wireless signal coverage and impacting user experience. Utility Model Content
[0004] Therefore, it is necessary to provide a dielectric lens antenna and a wireless communication device to address the problems of low gain and insufficient coverage and penetration of the built-in antenna in the aforementioned wireless communication devices.
[0005] According to one aspect of this application, a dielectric lens antenna is provided, comprising:
[0006] A lens body has a first mounting surface, a second mounting surface, and a third mounting surface disposed around its own central axis, wherein the third mounting surface is disposed between the first mounting surface and the second mounting surface;
[0007] The antenna assembly includes a dual-polarized directional antenna unit, a first vertically polarized omnidirectional antenna unit, and a second vertically polarized omnidirectional antenna unit. The first vertically polarized omnidirectional antenna unit is disposed on the first mounting surface, the second vertically polarized omnidirectional antenna unit is disposed on the second mounting surface, and the dual-polarized directional antenna unit is disposed on the third mounting surface.
[0008] In one embodiment, the first mounting surface is an arc surface or a plane; the second mounting surface is an arc surface or a plane; and the third mounting surface is an arc surface or a plane.
[0009] In one embodiment, the lens body is cylindrical; or, the lens body is a regular m-prism, where m is an even number greater than or equal to 6; or, the lens body is spherical.
[0010] In one embodiment, the dual-polarized directional antenna unit is fixed to the lens body by a mounting component, and the distance h between the dual-polarized directional antenna unit and the lens body is 0.1λ to 0.2λ.
[0011] Where λ is the wavelength of the center frequency point of the operating frequency band.
[0012] In one embodiment, the dual-polarized directional antenna unit includes a dual-polarized radiating element and a reflector. The reflector is fixed to the lens body by the mounting element, the dual-polarized radiating element is disposed on the reflector, and the distance h between the dual-polarized radiating element and the lens body is 0.1λ to 0.2λ.
[0013] In one embodiment, the first mounting surface and the central axis of the lens body are connected by a first line, and the second mounting surface and the central axis of the lens body are connected by a second line, wherein the angle between the first line and the second line is less than 180°.
[0014] In one embodiment, a third line is provided between the third mounting surface and the central axis of the lens body, and the angle between the third line and the first line is the same as the angle between the third line and the second line.
[0015] In one embodiment, the angle between the first line and the second line is 120°.
[0016] In one embodiment, the vertically polarized omnidirectional antenna element covers a frequency band of 2400-2500MHz, and the dual-polarized directional antenna element covers a frequency band of 5150-5850MHz.
[0017] According to another aspect of this application, a wireless communication device is provided, including a dielectric lens antenna as described in any of the above embodiments.
[0018] The aforementioned dielectric lens antenna and wireless communication device, by combining the dual-polarized directional antenna unit, the first vertically polarized omnidirectional antenna unit, and the second vertically polarized omnidirectional antenna unit with the lens body, enable the lens body to increase the maximum gain of the first vertically polarized omnidirectional antenna unit and the second vertically polarized omnidirectional antenna unit in the 2.4G band to 5dBi, and increase the average gain of the dual-polarized directional antenna unit in the 5G band to 10.5Bi, thereby significantly improving the signal penetration and coverage capabilities of the dielectric lens antenna and wireless communication device, and enhancing the user experience. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a dielectric lens antenna according to some embodiments of this application.
[0020] Figure 2 for Figure 1 Rear view of the dielectric lens antenna in the image.
[0021] Figure 3 for Figure 1 A top view of the dielectric lens antenna in the image.
[0022] Figure 4This is a three-dimensional structural schematic diagram of a dielectric lens antenna according to some embodiments of this application.
[0023] Figure 5 This is a partial structural schematic diagram of a dielectric lens antenna according to some embodiments of this application.
[0024] Figure label:
[0025] 1. Lens body; 11. First mounting surface; 12. Second mounting surface; 13. Third mounting surface; 14. Mounting groove;
[0026] 2. Antenna assembly;
[0027] 21. Dual-polarized directional antenna element; 211. Dual-polarized radiating element; 212. Reflecting element; 213. Mounting element;
[0028] 22. First vertically polarized omnidirectional antenna element;
[0029] 23. Second vertically polarized omnidirectional antenna element. Detailed Implementation
[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms 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.
[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0036] As mentioned in the background technology, most of the built-in antennas in current wireless communication devices are omnidirectional antennas. However, the gain of omnidirectional antennas in related technologies is relatively low, only about 2-5dBi. Such a gain effect is poor when facing indoor walls for the 5GHz WiFi high-frequency band, resulting in weak wireless signal coverage and a poor user experience.
[0037] Based on the above reasons, this application provides a dielectric lens antenna and a wireless communication device, which can improve the gain of WiFi signals, thereby effectively improving the signal of indoor WiFi devices, giving them stronger penetration capabilities, increasing the coverage area of WiFi signals, and effectively improving product performance.
[0038] See Figure 1 One embodiment of this application provides a dielectric lens antenna, including a lens body 1 and an antenna assembly 2. The antenna assembly 2 is disposed on the lens body 1 so that the lens body 1 can effectively beamform and focus the electromagnetic waves of the antenna assembly 2, thereby improving radiation efficiency and achieving wideband and high-gain operation.
[0039] See Figure 1 and Figure 2 In specific configuration, antenna assembly 2 includes a dual-polarized directional antenna element 21, a first vertically polarized omnidirectional antenna element 22, and a second vertically polarized omnidirectional antenna element 23, all of which are mounted on lens body 1. The vertically polarized omnidirectional antenna is a special type of omnidirectional antenna, possessing not only the omnidirectional coverage characteristic of an omnidirectional antenna but also the advantages of vertical polarization, making it suitable for specific communication environments and application scenarios. The dual-polarized directional antenna is a special form of directional antenna, combining two orthogonal polarization directions to offer more advantages than traditional single-polarized directional antennas, including space saving, improved spectral efficiency, reduced interference, and improved signal quality.
[0040] More specifically, the vertically polarized omnidirectional antenna element covers the frequency band of 2400-2500MHz, while the dual-polarized directional antenna element 21 covers the frequency band of 5150-5850MHz. Because the two antenna elements cover different frequency bands and their polarization methods are compatible, both antenna elements can operate simultaneously in the same system. The vertically polarized omnidirectional antenna element is suitable for omnidirectional coverage in the 2.4GHz band, while the dual-polarized directional antenna element 21 is suitable for directional coverage in the 5GHz band. Together, they can provide wider coverage and higher data transmission rates for wireless communication systems.
[0041] See Figure 2 and Figure 3The lens body 1 has a first mounting surface 11, a second mounting surface 12, and a third mounting surface 13 arranged around its central axis, with the third mounting surface 13 positioned between the first mounting surface 11 and the second mounting surface 12. A first vertically polarized omnidirectional antenna element 22 is disposed on the first mounting surface 11, a second vertically polarized omnidirectional antenna element 23 is disposed on the second mounting surface 12, and a dual-polarized directional antenna element 21 is disposed on the third mounting surface 13. Specifically, the first mounting surface 11, the third mounting surface 13, and the second mounting surface 12 are arranged circumferentially around the lens body 1, with both sides of the third mounting surface 13 connected to the first mounting surface 11 and the second mounting surface 12, respectively. The first vertically polarized omnidirectional antenna element 22, the dual-polarized directional antenna element 21, and the second vertically polarized omnidirectional antenna element 23, respectively located on the first mounting surface 11, the third mounting surface 13, and the second mounting surface 12, are arranged circumferentially around the lens body 1 at intervals.
[0042] The above structure allows the lens body 1 to effectively enhance the gain values of the dual-polarized directional antenna unit 21, the first vertically polarized omnidirectional antenna unit 22, and the second vertically polarized omnidirectional antenna unit 23 while combining them, so that the dielectric lens antenna has good signal penetration and coverage capabilities in both the 2.4G and 5G frequency bands.
[0043] The dielectric lens antenna of this application combines a dual-polarized directional antenna unit 21, a first vertically polarized omnidirectional antenna unit 22, and a second vertically polarized omnidirectional antenna unit 23 with a lens body 1. This allows the lens body 1 to increase the maximum gain of the first vertically polarized omnidirectional antenna unit 22 and the second vertically polarized omnidirectional antenna unit 23 in the 2.4 GHz band to 5 dBi, effectively improving the signal coverage strength of WiFi devices in the 2.4 GHz band. The lens body 1 can also increase the average gain of the dual-polarized directional antenna unit 21 in the 5 GHz band to 10.5 dBi, significantly improving the signal penetration and coverage of WiFi devices in the 5 GHz band. Compared with the omnidirectional antennas with a gain of 3-5 dBi used in traditional WiFi devices for the 5 GHz band, the performance is better.
[0044] In summary, the dielectric lens antenna of this application combines the dual-polarized directional antenna unit 21, the first vertically polarized omnidirectional antenna unit 22, and the second vertically polarized omnidirectional antenna unit 23 with the lens body 1, enabling it to have good signal penetration and coverage capabilities in both the 2.4G and 5G frequency bands, effectively improving the user experience.
[0045] See Figure 3 and Figure 4In one embodiment, the first mounting surface 11 is an arc surface or a plane; the second mounting surface 12 is an arc surface or a plane; and the third mounting surface 13 is an arc surface or a plane. Compared to irregular surfaces such as wavy surfaces, arc surfaces and planes can enable the antenna assembly 2 to be better integrated with the lens body 1.
[0046] Specifically, the lens body 1, which has a first mounting surface 11, a second mounting surface 12, and a third mounting surface 13, is a regular shape such as a cylinder, a regular m-prism (where m is an even number greater than or equal to 6), or a sphere. When the lens body 1 is a cylinder or a sphere, the first mounting surface 11, the second mounting surface 12, and the third mounting surface 13 are all curved surfaces. When the lens body 1 is a regular m-prism (where m is an even number greater than or equal to 6), the first mounting surface 11, the second mounting surface 12, and the third mounting surface 13 are all planar surfaces.
[0047] More specifically, see Figure 4 and Figure 5 In the embodiments of this application, the lens body 1 is cylindrical, and the first mounting surface 11, the second mounting surface 12, and the third mounting surface 13 are all curved surfaces. Mounting grooves 14 are provided on both the first mounting surface 11 and the second mounting surface 12. The first vertically polarized omnidirectional antenna unit 22 and the second vertically polarized omnidirectional antenna unit 23 are respectively disposed in the two mounting grooves 14 to achieve a stable connection between the first vertically polarized omnidirectional antenna unit 22 and the second vertically polarized omnidirectional antenna unit 23 and the lens body 1.
[0048] See Figure 3 and Figure 4 The dual-polarized directional antenna unit 21 includes a dual-polarized radiating element 211 and a reflector 212. The reflector 212 is fixed to the third mounting surface 13 by a mounting member 213. The dual-polarized radiating element 211 is disposed on the side of the reflector 212 facing the third mounting surface 13, and there is a gap between the dual-polarized radiating element 211 and the third mounting surface 13. The mounting member 213 includes multiple mounting posts, one end of which is disposed on the side of the reflector 212 facing the third mounting surface 13, and the other end of which is disposed on the third mounting surface 13. The multiple mounting posts assist in the connection between the reflector 212 and the lens body 1, ensuring the stability of the connection between the dual-polarized directional antenna unit 21 and the lens body 1 while allowing for a gap between the dual-polarized radiating element 211 on the reflector 212 and the lens body 1.
[0049] See Figure 3 and Figure 4 In one embodiment, the dual-polarized directional antenna element 21 is fixed to the lens body 1 by a mounting member 213, and the distance h between the dual-polarized directional antenna element 21 and the lens body 1 is 0.1λ to 0.2λ. Wherein λ is the wavelength of the center frequency point of the operating frequency band.
[0050] Specifically, the dual-polarized directional antenna unit 21 includes a dual-polarized radiating element 211 and a reflector 212. The reflector 212 is fixed to the lens body 1 by a mounting element 213. The dual-polarized radiating element 211 is disposed on the reflector 212, and the distance h between the dual-polarized radiating element 211 and the lens body 1 is 0.1λ to 0.2λ.
[0051] Understandably, the distance h between the dual-polarized directional antenna element 21 and the lens body 1 affects the focal length performance of electromagnetic waves passing through the lens body 1. Too large or too small a distance h will prevent electromagnetic waves from achieving the required technical specifications through the lens body 1. In this embodiment, a distance h ranging from 0.1λ to 0.2λ is suitable, as it improves the product's gain and performance. Specifically, the distance h includes, but is not limited to, 0.1λ, 0.12λ, 0.15λ, 0.17λ, or 0.2λ.
[0052] See Figure 3 and Figure 4 In one embodiment, a first line connects the first mounting surface 11 to the central axis of the lens body 1, and a second line connects the second mounting surface 12 to the central axis of the lens body 1. The angle between the first and second lines is less than 180°. It is understood that since the first vertically polarized omnidirectional antenna element 22 and the second vertically polarized omnidirectional antenna element 23 are respectively ring-shaped on the first mounting surface 11 and the second mounting surface 12, ensuring normal transmission of the dielectric lens antenna signal by making the angle between the first and second lines less than 180° is achieved.
[0053] To ensure the overall structure of the dielectric lens antenna is regular, a third line connects the third mounting surface 13 and the central axis of the lens body 1. The angle between the third line and the first line is the same as the angle between the third line and the second line, so that the spacing between the dual-polarized directional antenna element 21 and the first vertically polarized omnidirectional antenna element 22, and the spacing between the rings of the dual-polarized directional antenna element 21 and the second vertically polarized omnidirectional antenna element 23 are consistent. Specifically, refer to... Figure 3 In the embodiments of this application, the included angle α between the first line and the second line is 120°, the included angle between the third line and the first line is 60°, and the included angle between the second line and the first line is 60°.
[0054] Embodiments of this application also provide a wireless communication device, including a dielectric lens antenna as described in any of the foregoing embodiments. Specifically, the wireless communication device further includes a housing, with the dielectric lens antenna disposed inside the housing to protect the dielectric lens antenna.
[0055] The wireless communication device of this application combines the dual-polarized directional antenna unit 21, the first vertically polarized omnidirectional antenna unit 22, and the second vertically polarized omnidirectional antenna unit 23 of the dielectric lens antenna with the lens body 1. This allows the lens body 1 to increase the maximum gain of the first vertically polarized omnidirectional antenna unit 22 and the second vertically polarized omnidirectional antenna unit 23 in the 2.4G band to 5dBi and increase the average gain of the dual-polarized directional antenna unit 21 in the 5G band to 10.5Bi. This significantly improves the signal penetration and coverage capabilities of the dielectric lens antenna and the wireless communication device, thereby enhancing the user experience.
[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A dielectric lens antenna, characterized in that, include: A lens body has a first mounting surface, a second mounting surface, and a third mounting surface disposed around its own central axis, wherein the third mounting surface is disposed between the first mounting surface and the second mounting surface; The antenna assembly includes a dual-polarized directional antenna unit, a first vertically polarized omnidirectional antenna unit, and a second vertically polarized omnidirectional antenna unit. The first vertically polarized omnidirectional antenna unit is disposed on the first mounting surface, the second vertically polarized omnidirectional antenna unit is disposed on the second mounting surface, and the dual-polarized directional antenna unit is disposed on the third mounting surface.
2. The dielectric lens antenna according to claim 1, characterized in that, The first mounting surface is an arc surface or a plane; the second mounting surface is an arc surface or a plane; the third mounting surface is an arc surface or a plane.
3. The dielectric lens antenna according to claim 1, characterized in that, The lens body is cylindrical; or, the lens body is a regular m-prism, where m is an even number greater than or equal to 6; or, the lens body is spherical.
4. The dielectric lens antenna according to claim 1, characterized in that, The dual-polarized directional antenna unit is fixed to the lens body by a mounting component, and the distance h between the dual-polarized directional antenna unit and the lens body is 0.1λ to 0.2λ. Where λ is the wavelength of the center frequency point of the operating frequency band.
5. The dielectric lens antenna according to claim 4, characterized in that, The dual-polarized directional antenna unit includes a dual-polarized radiating element and a reflector. The reflector is fixed on the lens body by the mounting element. The dual-polarized radiating element is disposed on the reflector, and the distance h between the dual-polarized radiating element and the lens body is 0.1λ to 0.2λ.
6. The dielectric lens antenna according to claim 1, characterized in that, The first mounting surface and the central axis of the lens body are connected by a first line, and the second mounting surface and the central axis of the lens body are connected by a second line, wherein the included angle between the first line and the second line is less than 180°.
7. The dielectric lens antenna according to claim 6, characterized in that, The third mounting surface and the central axis of the lens body are connected by a third line, and the angle between the third line and the first line is the same as the angle between the third line and the second line.
8. The dielectric lens antenna according to any one of claims 6 or 7, characterized in that, The angle between the first line and the second line is 120°.
9. The dielectric lens antenna according to claim 1, characterized in that, The vertically polarized omnidirectional antenna unit covers a frequency band of 2400-2500MHz, and the dual-polarized directional antenna unit covers a frequency band of 5150-5850MHz.
10. A wireless communication device, characterized in that, Including the dielectric lens antenna as described in any one of claims 1-9.