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, the antenna module comprises a dielectric layer, a radiation unit, a first metal layer, a second radiation unit and a second metal layer, and the dielectric layer comprises a first surface and a second surface which are oppositely arranged; the radiation unit is arranged on the first surface in a clearance manner; the first metal layer is provided with a signal transmission line and a feeding point, and one end of the radiator unit is connected with the feeding point through the signal transmission line; the second radiation unit is arranged on the second surface, and the second metal layer is stacked with the dielectric layer, the radiator unit and the first metal layer. By means of the mode, the antenna module can cover different frequency bands, the overall size of the antenna can be reduced, and the antenna can have better radiation performance.

Description

Technical Field

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

[0002] UWB (Ultra Wide Band) ultra-wideband technology is a new type of wireless communication technology. Due to its unique technology and ultra-wide frequency bandwidth, it can provide centimeter-level positioning services. In recent years, UWB positioning technology has been applied to the keyless entry system of automobiles, and mobile phone manufacturers have also adopted UWB technology to implement positioning services between products. As an indispensable element in wireless communication, the antenna affects the positioning accuracy and communication distance.

[0003] In the process of implementing the embodiments of the present application, the inventors found that: while the product size is getting smaller, the functions are getting more and more, such as mobile phones having more and more functions while the size is decreasing. However, existing UWB antennas usually require multiple independent antennas to be respectively loaded on communication devices to achieve coverage of multiple frequency band signals, occupying a large space, resulting in a large volume and being not conducive to integration into products. Summary of the Utility Model

[0004] The main technical problem to be solved by the embodiments of the present application is to provide an antenna module. By arranging a radiation unit in a clearance of a dielectric layer and connecting it to a feeding point of a first metal layer, it can enable the antenna module to cover different frequency bands, and can reduce the overall size of the antenna, and can make the antenna have better radiation performance.

[0005] To solve the above technical problem, a technical solution adopted by the embodiments of the present application is: to provide an antenna module, including a dielectric layer, a radiation unit, a first metal layer, a second radiation unit, and a second metal layer. The dielectric layer includes a first surface and a second surface arranged opposite to each other; the radiation unit is arranged in a clearance on the first surface; the first metal layer is provided with a signal transmission line and a feeding point, and one end of the radiator unit is connected to the feeding point through the signal transmission line; the second radiation unit is arranged on the second surface, and the second metal layer is stacked with the dielectric layer, the radiator unit, and the first metal layer.

[0006] Optionally, the radiator unit includes a dielectric resonance block and an antenna unit. The dielectric resonance block is arranged in a clearance on the first surface, the antenna unit covers the dielectric resonance block, and one end of the antenna unit is connected to the feeding point through the signal transmission line.

[0007] Optionally, the antenna unit includes a first radiation branch, a second radiation branch, a third radiation branch, and a fourth radiation branch. One end of the second radiation branch is embedded in the first radiation branch, the other end of the second radiation branch is embedded in the third radiation branch, one end of the fourth radiation branch is embedded with the third radiation branch, and the other end of the fourth radiation branch is connected to the signal transmission line.

[0008] Optionally, the first radiation branch includes a first branch and a second branch. The first branch is vertically disposed on the side of the dielectric resonator block, and the second branch is bent and connected to the first branch. The second radiation branch includes a third branch, a fourth branch, a fifth branch, a sixth branch, and a seventh branch. The third branch, the fourth branch, and the fifth branch enclose a first groove portion, and the fifth branch, the sixth branch, and the seventh branch enclose a second groove portion. One end of the second branch is embedded in the first groove portion, and one end of the third radiation branch is embedded in the second groove portion. The third radiation branch includes an eighth branch, a ninth branch, a tenth branch, an eleventh branch, and a twelfth branch. The eighth branch, the ninth branch, and the tenth branch enclose a third groove portion, and the seventh branch is embedded in the third groove portion. The tenth branch, the eleventh branch, and the twelfth branch enclose a fourth groove portion, and one end of the fourth radiation branch is embedded in the fourth groove portion. The fourth radiation branch includes a thirteenth branch and a fourteenth branch. One end of the thirteenth branch is perpendicularly connected to the signal transmission line, and the fourteenth branch is bent and connected to the thirteenth branch, and the fourteenth branch is embedded in the fourth groove portion.

[0009] Optionally, the antenna unit further includes a first rectangular radiation portion and a second rectangular radiation portion. The first rectangular radiation is connected to the first radiation branch, and the second rectangular radiation portion is connected to the fourth radiation branch. The first rectangular radiation portion is disposed at one end of the dielectric resonator block, and the second rectangular radiation portion is disposed at the other end of the dielectric resonator block. The first rectangular radiation portion and the second rectangular radiation portion are disposed opposite to each other.

[0010] Optionally, the antenna unit further includes a coupling component. The coupling component is disposed on the dielectric resonator block, and the coupling component and the antenna unit transmit signals through electromagnetic coupling.

[0011] Optionally, the coupling component includes a first coupling branch and a second coupling branch. The first coupling branch is disposed on the first sidewall of the dielectric resonator block, and the second coupling branch is disposed on the second sidewall of the dielectric resonator block. The first coupling branch and the second coupling branch are disposed opposite to each other, and the antenna unit is disposed between the first coupling branch and the second coupling branch.

[0012] Optionally, the antenna module includes a plurality of metal posts, the dielectric layer is provided with a plurality of through holes, and one of the metal posts passes through one of the through holes and abuts against the first metal layer and the second metal layer respectively.

[0013] Optionally, the antenna module further includes a first metal pad and a second metal pad. The first rectangular radiation portion is welded to the first metal pad, and the second rectangular radiation portion is welded to the second metal pad.

[0014] To solve the above technical problems, another technical solution adopted in the embodiments of the present application is: to provide a kind of.

[0015] The embodiments of the present application provide an antenna module, which includes a dielectric layer, a radiation unit, a first metal layer, a second radiation unit and a second metal layer. The dielectric layer includes a first surface and a second surface arranged opposite to each other. The radiation unit is disposed in a clearance on the first surface. The first metal layer is provided with a signal transmission line and a feeding point. One end of the radiator unit is connected to the feeding point through the signal transmission line. By disposing the radiation unit in a clearance on the dielectric layer, the dielectric layer, the first metal layer, and the second metal layer are stacked. The second radiation unit is disposed on the second metal layer, which can enable the antenna module to cover different frequency bands, and can reduce the overall size of the antenna, and can make the antenna have better radiation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. 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 actual scale.

[0017] Figure 1 is a schematic diagram of the antenna module according to the embodiment of the present application;

[0018] Figure 2 is Figure 1 a partial enlarged view of part A in;

[0019] Figure 3 is another schematic diagram of the antenna module according to the embodiment of the present application;

[0020] Figure 4 is Figure 3 a partial enlarged view of part B in;

[0021] Figure 5 is Figure 1 another partial enlarged view of part A in;

[0022] Figure 6It is another schematic diagram of the antenna module according to the embodiment of the present application;

[0023] Figure 7 It is Figure 6 The partial enlarged view of part C in

[0024] Figure 8 It is Figure 6 Another partial enlarged view of part C in

[0025] Figure 9 It is Figure 6 Another partial enlarged view of part C in

[0026] Figure 10 It is the signal frequency coverage diagram of the antenna module according to the embodiment of the present application;

[0027] Figure 11 It is the signal frequency efficiency diagram of the antenna module according to the embodiment of the present application;

[0028] Figure 12 It is another schematic diagram of the antenna module according to the embodiment of the present application;

[0029] Figure 13 It is Figure 12 The partial enlarged view of part D in

[0030] Figure 14 It is Figure 12 Another partial enlarged view of part D in

[0031] Figure 15 It is the exploded view of the antenna module according to the embodiment of the present application.

[0032] The reference numerals in the specific embodiments are as follows: 100, antenna module; 10, dielectric layer; 101, first surface; 102, second surface; 20, radiation unit; 201, dielectric resonator block; 202, antenna unit; 203, first radiation branch; 231, first branch; 232, second branch; 204, second radiation branch; 241, third branch; 242, fourth branch; 243, fifth branch; 244, sixth branch; 245, seventh branch; 246, first slot; 247, second slot; 205, third radiation branch; 251, eighth branch; 252, ninth branch; 253, tenth branch; 254, eleventh branch; 255, twelfth branch; 256, third slot; 257, fourth slot; 206, fourth radiation branch; 261, thirteenth branch; 262, fourteenth branch; 207, first rectangular radiation part; 208, second rectangular radiation part; 30, first metal layer; 301, signal transmission line; 302, feeding point; 40, second radiation unit; 50, second metal layer; 60, coupling component; 601, first coupling branch; 103, metal post; 80, first metal pad; 90, second metal pad. Specific embodiments

[0033] To facilitate the understanding of the present application, the present application will be described in more detail 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 there can be one or more intermediate elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. 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 drawings, and are only for facilitating the description of 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 thus cannot be construed as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not used to limit the present application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0035] 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.

[0036] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 。 The antenna module 100 includes: a dielectric layer 10, a radiation unit 20, a first metal layer 30, a second radiation unit 40, and a second metal layer 50. The dielectric layer 10 includes a first surface 101 and a second surface 102 arranged opposite to each other. The radiation unit 20 is disposed in clearance on the first surface 101. The first metal layer 30 is provided with a signal transmission line 301 and a feeding point 302. One end of the radiator unit 20 is connected to the feeding point 302 through the signal transmission line 301. The second radiation unit 40 is disposed on the second surface 102. The second metal layer 50 is stacked with the dielectric layer 10, the radiator unit, and the first metal layer 30 so that the antenna module 100 is electrically connected. In the embodiment of the present application, the dielectric layer 10 is made of ceramic or other insulating materials. The dielectric constant of the dielectric layer 10 is 4.4, and the size is 1.6 * 3.2 * 1.1 mm. Due to the use of the dielectric layer 10 with a high dielectric constant, the volume of the antenna is greatly reduced, and the miniaturization of the antenna is more conducive to integration into communication devices.

[0037] In the embodiment of the present application, the second radiation unit 40 is a parasitic stub, forming a resonant frequency of 8 CHZ.

[0038] Please refer to Figure 5 。 The radiator unit includes a dielectric resonance block 201 and an antenna unit 202. The dielectric resonance block 201 is disposed in clearance on the first surface 101. The antenna unit 202 covers the dielectric resonance block 201, so that the antenna module 100 has strong portability and can adjust the matching of the antenna module 100 to adapt to the environments of different machines. One end of the antenna unit 202 is connected to the feeding point 302 through the signal transmission line 301 to electrically connect the antenna module 100. In Please refer to Figure 1, the antenna module 100 includes: a dielectric layer 10, a radiation unit 20, a first metal layer 30, a second radiation layer, and a second metal layer 50. The dielectric layer 10 includes a first surface 101 and a second surface 102 that are oppositely arranged. The radiation unit 20 is disposed in a clearance manner on the first surface 101. The first metal layer 30 is provided with a signal transmission line 301 and a feeding point 302. One end of the radiator unit is connected to the feeding point 302 through the signal transmission line 301. The second radiation unit 40 is disposed on the second surface 102. The second metal layer 50 is stacked with the dielectric layer 10, the radiator unit, and the first metal layer 30 so that the antenna module 100 is electrically connected. In the embodiment of the present application, the dielectric layer 10 is made of ceramic or other insulating materials. The dielectric constant of the dielectric layer 10 is 4.4, and the size is 1.6*3.2*1.1 mm. Since the dielectric layer 10 with a high dielectric constant is adopted, the volume of the antenna is greatly reduced, and the miniaturization of the antenna is more conducive to integration into communication devices.

[0039] In the embodiment of the present application, the second radiation unit 40 is a parasitic stub, forming a resonant frequency of 8 CHZ.

[0040] Please refer to Figure 6 and Figure 7 , the radiator unit includes a dielectric resonator block 201 and an antenna unit 202. The dielectric resonator block 201 is disposed in a clearance manner on the first surface 101. The antenna unit 202 covers the dielectric resonator block 201, so that the antenna module 100 has strong portability and can adjust the matching of the antenna module 100 to adapt to the environments of different machines. One end of the antenna unit 202 is connected to the feeding point 302 through the signal transmission line 301 to electrically connect the antenna module 100. In the embodiment of the present application, the dielectric constant of the dielectric resonator block 201 is 9.8. Loading the dielectric resonator block 201 with a high dielectric constant on the dielectric layer 10 further reduces the volume of the antenna, and the miniaturization of the antenna is more conducive to integration into communication devices.

[0041] Please refer to Figure 6 and Figure 7 , the antenna unit 202 includes a first radiation stub 203, a second radiation stub 204, a third radiation stub 205, and a fourth radiation stub 206. One end of the second radiation stub 204 is embedded in the first radiation stub 203, the other end of the second radiation stub 204 is embedded in the third radiation stub 205, one end of the fourth radiation stub 206 is embedded with the third radiation stub 205, and the other end of the fourth radiation stub 206 is connected to the signal transmission line 301. Specifically, please refer to Figure 7 and Figure 8, the first radiation stub 203 includes a first stub 231 and a second stub 232. The first stub 231 is vertically disposed on the side of the dielectric resonator block 201, and the second stub 232 is bent and connected to the first stub 231. The second radiation stub 204 includes a third stub 241, a fourth stub 242, a fifth stub 243, a sixth stub 244, and a seventh stub 245. The third stub 241, the fourth stub 242, and the fifth stub 243 enclose a first slot 246. The fifth stub 243, the sixth stub 244, and the seventh stub 245 enclose a second slot 247. One end of the second stub 232 is embedded in the first slot 246, and one end of the third radiation stub 205 is embedded in the second slot 247. The third radiation stub 205 includes an eighth stub 251, a ninth stub 252, a tenth stub 253, an eleventh stub 254, and a twelfth stub 255. The eighth stub 251, the ninth stub 252, and the tenth stub 253 enclose a third slot 256. The seventh stub 245 is embedded in the third slot 256. The tenth stub 253, the eleventh stub 254, and the twelfth stub 255 enclose a fourth slot 257. One end of the fourth radiation stub 206 is embedded in the fourth slot 257. The fourth radiation stub 206 includes a thirteenth stub 261 and a fourteenth stub 262. One end of the thirteenth stub 261 is connected perpendicular to the signal transmission line 301, and the fourteenth stub 262 is bent and connected to the thirteenth stub 261, and the fourteenth stub 262 is embedded in the fourth slot 257. Through the above settings, please combine Figure 10 and Figure 11 , to form the antenna unit 202 in the present application, and in cooperation with the dielectric resonator block 201, can respectively radiate signals of 6.5 GHz and 8 GHz, where Figure 10 midpoint 1 represents the radiation signal of the radiation unit 20, and point 2 represents the radiation signal of the second radiation unit 40

[0042] Please refer to Figure 12 and 13 , the antenna unit 202 further includes a first rectangular radiation portion 207 and a second rectangular radiation portion 208. The first rectangular radiation is connected to the first radiation stub 203, and the second rectangular radiation portion 208 is connected to the fourth radiation stub 206. The first rectangular radiation portion 207 is disposed at one end of the dielectric resonator block 201, and the second rectangular radiation portion 208 is disposed at the other end of the dielectric resonator block 201. The first rectangular radiation portion 207 and the second rectangular radiation are oppositely disposed to make the radiation performance of the antenna unit 202 better.

[0043] Please continue to refer to Figure 13 , Figure 14, the antenna unit 202 further includes a coupling component 60. The coupling component 60 is disposed on the dielectric resonator block 201. The coupling component 60 and the antenna unit 202 transmit signals through electromagnetic coupling. Specifically, the coupling component 60 includes a first coupling stub 601 and a second coupling stub (not shown in the figure). The first coupling stub 601 is disposed on a first sidewall of the dielectric resonator block 201. The second coupling stub (not shown in the figure) is disposed on a second sidewall of the dielectric resonator block 201. And the first coupling stub 601 and the second coupling stub (not shown in the figure) are disposed opposite to each other. The antenna unit 202 is disposed between the first coupling stub 601 and the second coupling stub (not shown in the figure).

[0044] Please refer to Figure 14 and Figure 15 , the antenna module 100 includes a plurality of metal posts 103. The dielectric layer 10 is provided with a plurality of through holes (not shown in the figure). One of the metal posts 103 passes through one of the through holes and abuts against the first metal layer 30 and the second metal layer 50 respectively, so as to reduce the risk of the antenna module 100 falling off due to external force factors. Further, the antenna module 100 further includes a first metal pad 80 and a second metal pad 90. The first rectangular radiation portion 207 is welded to the first metal pad 80, and the second rectangular radiation portion 208 is welded to the second metal pad 90, so as to fix the radiation unit 20 on the dielectric layer 10.

[0045] An embodiment of the present application provides an antenna module 100, which includes a dielectric layer 10, a radiation unit 20, a first metal layer 30, a second radiation unit 40, and a second metal layer 50. The dielectric layer 10 includes a first surface 101 and a second surface 102 which are disposed opposite to each other. The radiation unit 20 is disposed in a clearance on the first surface 101. The first metal layer 30 is provided with a signal transmission line 301 and a feeding point 302. One end of the radiator unit is connected to the feeding point 302 through the signal transmission line 301. By disposing the radiation unit 20 in a clearance on the dielectric layer 10, the dielectric layer 10, the first metal layer 30, and the second metal layer 50 are stacked. The second radiation unit 40 is disposed on the second metal layer 50, which can enable the antenna module 100 to cover different frequency bands, and can reduce the overall size of the antenna, and can enable the antenna to have better radiation performance.

[0046] The present application further provides an embodiment of a communication device. The communication device includes the above-mentioned antenna module 100. For the specific structure and function of the communication device, please refer to the above embodiment, which will not be elaborated here.

[0047] The above are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An antenna module, characterized in that: include: The dielectric layer comprises a first surface and a second surface which are arranged opposite to each other; a radiator unit, wherein the radiator unit is disposed on the first surface in a clearance manner; a first metal layer, wherein the first metal layer is provided with a signal transmission line and a feeding point, and one end of the radiator unit is connected to the feeding point through the signal transmission line; A second radiation unit is disposed on the second surface; The second metal layer is stacked with the dielectric layer, the radiation unit and the first metal layer.

2. The antenna module according to claim 1, characterized in that: The radiator unit includes a dielectric resonant block and an antenna unit, wherein the dielectric resonant block is disposed in a clearance on the first surface, the antenna unit covers the dielectric resonant block, and one end of the antenna unit is connected to the feeding point through the signal transmission line.

3. The antenna module according to claim 2, characterized in that: The antenna unit includes a first radiating branch, a second radiating branch, a third radiating branch and a fourth radiating branch, one end of the second radiating branch is embedded in the first radiating branch, the other end of the second radiating branch is embedded in the third radiating branch, one end of the fourth radiating branch is embedded in the third radiating branch, and the other end of the fourth radiating branch is connected to the signal transmission line.

4. The antenna module according to claim 3, characterized in that: The first radiation branch includes a first branch and a second branch, the first branch is vertically arranged on the side of the dielectric resonance block, the second branch is bent and connected to the first branch, the second radiation branch includes a third branch, a fourth branch, a fifth branch, a sixth branch and a seventh branch, the third branch, the fourth branch and the fifth branch are surrounded to form a first groove, the fifth branch, the sixth branch and the seventh branch are surrounded to form a second groove, one end of the second branch is embedded in the first groove, one end of the third radiation branch is embedded in the second groove, and the third radiation branch includes an eighth branch. The eighth branch, the ninth branch, the tenth branch, the eleventh branch and the twelfth branch, the eighth branch, the ninth branch and the tenth branch are enclosed to form a third groove portion, the seventh branch is embedded in the third groove portion, the tenth branch, the eleventh branch and the twelfth branch are enclosed to form a fourth groove portion, one end of the fourth radiating branch is embedded in the fourth groove portion, the fourth radiating branch includes a thirteenth branch and a fourteenth branch, one end of the thirteenth branch is connected perpendicular to the signal transmission line, the fourteenth branch is bent and connected to the thirteenth branch, and the fourteenth branch is embedded in the fourth groove portion.

5. The antenna module according to claim 3, characterized in that: The antenna unit also includes a first rectangular radiating portion and a second rectangular radiating portion, the first rectangular radiating portion is connected to the first radiating branch, the second rectangular radiating portion is connected to the fourth radiating branch, and the first rectangular radiating portion is arranged at one end of the dielectric resonance block, the second rectangular radiating portion is arranged at the other end of the dielectric resonance block, and the first rectangular radiating portion and the second rectangular radiating portion are arranged opposite to each other.

6. The antenna module according to claim 2, characterized in that: The antenna unit also includes a coupling component, which is arranged on the dielectric resonant block, and the coupling component and the antenna unit transmit signals through electromagnetic coupling.

7. The antenna module according to claim 6, characterized in that: The coupling component includes a first coupling branch and a second coupling branch, the first coupling branch is arranged on the first side wall of the dielectric resonator block, the second coupling branch is arranged on the second side wall of the dielectric resonator block, and the first coupling branch and the second coupling branch are arranged opposite to each other, and the antenna unit is arranged between the first coupling branch and the second coupling branch.

8. The antenna module according to claim 1, characterized in that: The antenna module includes a plurality of metal pillars. The dielectric layer is provided with a plurality of through holes. One of the metal pillars passes through one of the through holes and abuts against the first metal layer and the second metal layer respectively.

9. The antenna module according to claim 5, characterized in that: The antenna module further includes a first metal pad and a second metal pad, the first rectangular radiating portion is welded to the first metal pad, and the second rectangular radiating portion is welded to the second metal pad.

10. A communication device, characterized in that: Comprising the antenna module as described in any one of claims 1-9.

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