Antenna module and communication unit

Abstract

The embodiment of the utility model relates to the technical field of communication, and discloses an antenna module and communication device.The antenna module comprises a dielectric substrate, a first conductive layer, a second conductive layer, a first antenna unit and a second antenna unit, and the dielectric substrate, the first conductive layer and the second conductive layer are arranged in a stacked mode; the second conductive layer and the first conductive layer are oppositely arranged, the first antenna unit is arranged on the first conductive layer, the first radiation unit comprises a dielectric resonance block, a radiation unit and a feed branch, the radiation branch covers the dielectric resonance block, the feed branch is connected with the radiation branch, and the radiation branch covers the dielectric resonance block. The second antenna unit is arranged on the second conductive layer, the feed branch knot is connected with the second radiation unit, and through the mode, the antenna module can transmit various different signals.

Description

Technical Field

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

[0002] With the continuous development and popularization of Internet of Things (IoT) technologies, wireless communication technologies have also been more and more widely applied. In the era of connecting everything, Wi-Fi technology needs to keep iterating and leading all the time, and more and more IoT devices need to be connected through one or more wireless technologies. Wi-Fi 6E has characteristics such as high speed, low latency, and wide coverage, and is a wireless communication standard that is widely applied at the present stage.

[0003] In the process of implementing the embodiments of the present application, the inventors found that: while the size of communication products is getting smaller, their functions are becoming more and more numerous. Most of the existing Wi-Fi 6E antennas are relatively large in size and are difficult to be arranged within an extremely small clearance area. Usually, multiple independent antennas need to be respectively loaded on communication devices to achieve the coverage of multiple frequency band signals, occupying a relatively large space. 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, which can transmit multiple different signals by setting a first antenna unit and a second antenna unit, and achieve the purpose of antenna miniaturization while ensuring the performance of the antenna module.

[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 substrate, a first conductive layer, a second conductive layer, a first antenna unit, and a second antenna unit. The dielectric substrate, the first conductive layer, and the second conductive layer are stacked, and the second conductive layer and the first conductive layer are arranged opposite to each other. The first antenna unit is arranged on the first conductive layer. The first radiation unit includes a dielectric resonator block, a radiation unit, and a feeding stub. The radiation stub covers the dielectric resonator block, and the feeding stub is connected to the radiation stub. The second antenna unit is arranged on the second conductive layer, and the feeding stub is connected to the second radiation unit.

[0006] Optionally, the first conductive layer is provided with a feeding point and a transmission line, one end of the transmission line being connected to the feeding point; the feeding stub includes a first radiation portion, a first rectangular radiation portion, a second rectangular radiation portion, a second radiation portion, and a third rectangular radiation portion, the first rectangular radiation portion being respectively connected to the first radiation portion and the second rectangular radiation portion, the first rectangular radiation portion being perpendicularly connected to the second rectangular radiation portion, the second radiation portion being respectively connected to the second rectangular radiation portion and the third rectangular radiation portion, and the second radiation portion being connected to the transmission line, the third rectangular radiation portion being connected to the radiation unit.

[0007] Optionally, the radiation unit includes a first radiation stub, a second radiation stub, a third radiation stub, and a fourth radiation stub, the first radiation stub, the second radiation stub, the third radiation stub, and the fourth radiation stub being sequentially disposed on the sidewall of the dielectric resonator block.

[0008] Optionally, the first radiation stub includes a first stub and a second stub, the first stub being perpendicularly disposed on the side of the dielectric resonator block, the second stub being bent and connected to the first stub, the second radiation stub includes a third stub, a fourth stub, a fifth stub, a sixth stub, and a seventh stub, the third stub, the fourth stub, and the fifth stub enclosing a first slot, the fifth stub, the sixth stub, and the seventh stub enclosing a second slot, one end of the second stub being embedded in the first slot, one end of the third radiation stub being embedded in the second slot, the third radiation stub includes an eighth stub, a ninth stub, a tenth stub, an eleventh stub, and a twelfth stub, the eighth stub, the ninth stub, and the tenth stub enclosing a third slot, the seventh stub being embedded in the third slot, the tenth stub, the eleventh stub, and the twelfth stub enclosing a fourth slot, one end of the fourth radiation stub being embedded in the fourth slot, the fourth radiation stub includes a thirteenth stub, a fourteenth stub, and a fifteenth stub, one end of the thirteenth stub being bent and connected to the fourteenth stub, and the thirteenth stub, the fourteenth stub, and the fifteenth stub enclosing a fifth slot, and one end of the eighth stub being embedded in the fifth slot.

[0009] Optionally, the first antenna unit further includes a fourth rectangular radiation portion and a fifth rectangular radiation portion, one end of the fourth rectangular radiation being connected to the fifth rectangular radiation portion, the fourth rectangular radiation portion being connected to the fourth radiation stub, the fifth rectangular radiation portion being disposed at the other end of the dielectric resonator block.

[0010] Optionally, the antenna module is further provided with parasitic stubs, the parasitic stubs being disposed on the second conductive layer.

[0011] Optionally, the dielectric substrate is further provided with a clearance area, and the first antenna unit is disposed in the clearance area in a clearance manner.

[0012] Optionally, the dielectric substrate is further provided with metallized vias, and the radiation unit is connected to the second antenna unit through the metallized vias.

[0013] Optionally, the antenna module includes a plurality of metal posts, the dielectric substrate is provided with a plurality of through holes, and one metal post passes through one through hole and abuts against the first metal layer and the second metal layer respectively.

[0014] To solve the above technical problems, another technical solution adopted in the embodiments of the present application is: to provide a communication device including any one of the above antenna modules.

[0015] The beneficial effects of the embodiments of the present application are: different from the prior art, the embodiments of the present application provide an antenna module, including a dielectric substrate, a first conductive layer, a second conductive layer, a first antenna unit and a second antenna unit. The dielectric substrate, the first conductive layer and the second conductive layer are stacked, and the second conductive layer and the first conductive layer are disposed opposite to each other. The first antenna unit is disposed on the first conductive layer. The first radiation unit includes a dielectric resonator block, a radiation unit and a feeding branch. The radiation branch covers the dielectric resonator block, and the feeding branch is connected to the radiation branch. The second antenna unit is disposed on the second conductive layer, and the feeding branch is connected to the second radiation unit. By disposing the first antenna unit on the first conductive layer and the second antenna unit on the second conductive layer, multi-band coverage is achieved, and it can be loaded as an independent WI-FI antenna product into the communication device terminal to meet the requirements of various mobile terminals. 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 for use 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 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 3Partial enlarged view of part B;

[0021] Figure 5 is an exploded view of the antenna module according to an embodiment of the present application;

[0022] Figure 6 is Figure 5 Partial enlarged view of part C;

[0023] Figure 7 is a schematic diagram of the radiation unit according to an embodiment of the present application;

[0024] Figure 8 is another schematic diagram of the radiation unit according to an embodiment of the present application;

[0025] Figure 9 is a frequency parameter diagram of the antenna module according to an embodiment of the present application.

[0026] The reference numerals in the specific embodiments are as follows: 100, antenna module; 10, dielectric substrate; 101, clearance area; 102, metallized via; 20, first conductive layer; 201, feeding point; 202, transmission line; 30, first antenna unit; 301, dielectric resonator block; 302, radiation unit; 321, first radiation branch; 3211, first branch; 3212, second branch; 322, second radiation branch; 3221, third branch; 3222, fourth branch; 3223, fifth branch; 3224, sixth branch; 3225, seventh branch; 3226, first slot; 3227, second slot; 323, third radiation branch; 3231, eighth branch; 3232, ninth branch; 3233, tenth branch; 3234, eleventh branch; 3235, twelfth branch; 3236, third slot; 3237, fourth slot; 303, feeding branch; 333, first radiation part; 334, first rectangular radiation part; 335, second rectangular radiation part; 336, second radiation part; 337, third rectangular radiation part; 304, fourth rectangular radiation part; 305, fifth rectangular radiation part; 306, parasitic branch; 40, second antenna unit; 50, metal post. Specific embodiments

[0027] To facilitate the understanding of this application, the following provides a more detailed description of this application in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is stated 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 stated 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 orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification are based on the orientation or positional relationships shown in the accompanying drawings. These 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, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] 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 this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not used to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0029] In addition, the technical features involved in different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0030] Please refer to Figure 1 , the antenna module 100 includes: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, the antenna module 100 includes: a dielectric substrate 10, a first conductive layer 20, a first antenna unit 30, a second antenna unit 40, and a second conductive layer 50. The dielectric substrate 10, the first conductive layer 20, and the second conductive layer 50 are stacked, and the second conductive layer 50 and the first conductive layer 20 are disposed opposite to each other. The first antenna unit 30 is disposed on the first conductive layer 20. The first antenna unit 30 includes a dielectric resonance block 301, a radiation unit 302, and a feeding stub 303. The radiation unit 302 covers the dielectric resonance block 301. The feeding stub 303 is connected to the radiation unit 302, such that the feeding stub 303 controls signals in the frequency bands of 2.4 GHz - 2.5 GHz and 6 GHz - 7.125 GHz respectively. The second antenna unit 40 is disposed on the second conductive layer 50. The feeding stub 303 is connected to the second radiation unit 302, such that the antenna module 100 is turned on, and signal coverage in the frequency band of 5 GHz - 6 GHz is achieved. In the embodiment of the present application, the dielectric substrate 10 is preferably ceramic or other insulating materials. The dielectric constant of the dielectric resonance block 301 is 9.8. The dielectric constant of the dielectric substrate 10 is 4.3 - 4.4, and the size is 1.6 mm * 3.2 mm * 1.2 mm. Due to the adoption of the dielectric substrate 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.

[0031] Specifically, please refer to Figure 6, the first conductive layer 20 is provided with a feeding point 201 and a transmission line 202. One end of the transmission line 202 is connected to the feeding point 201. The antenna module 100 is further provided with a parasitic stub 306. The parasitic stub 306 is disposed on the second conductive layer 50. The dielectric substrate 10 is further provided with a metallized via 102. The feeding stub 303 is connected to the second antenna unit 40 through the metallized via 102. The feeding stub 303 includes a first radiation portion 333, a first rectangular radiation portion 334, a second rectangular radiation portion 335, a second radiation portion 336, and a third rectangular radiation portion 337. The first rectangular radiation portion 334 is respectively connected to the first radiation portion 333 and the second rectangular radiation portion 335. The first rectangular radiation portion 334 is perpendicularly connected to the second rectangular radiation portion 335. The second radiation portion 336 is respectively connected to the second rectangular radiation portion 335 and the third rectangular radiation portion 337. And the second radiation portion 336 is connected to the transmission line 202. The third rectangular radiation portion 337 is connected to the radiation unit 302. Through the above settings, the first radiation portion 333, the first rectangular radiation portion 334, the second rectangular radiation portion 335, and the parasitic stub 306 are connected to control the signal frequency band of 5.15 GHz - 7.125 GHz. The second radiation portion 336 and the third rectangular radiation portion 337 control the signal frequency band of 2.4 - 2.5 GHz.

[0032] Please continue to refer to Figure 6 , Figure 7 , the first antenna unit 30 further includes a fourth rectangular radiation portion 304 and a fifth rectangular radiation portion 305. One end of the fourth rectangular radiation portion 304 is connected to the fifth rectangular radiation portion 305. The fifth rectangular radiation portion 305 is disposed at the other end of the dielectric resonator block 301. The radiation unit 302 includes a first radiation branch 324, a second radiation branch 322, a third radiation branch 323, and a fourth radiation branch 324. The fourth rectangular radiation portion 304 is connected to the fourth radiation branch 324. And the first radiation branch 324, the second radiation branch 322, the third radiation branch 323, and the fourth radiation branch 321 are sequentially disposed on the side wall of the dielectric resonator block 301. Through the above settings, the radiation unit 302 on the first antenna unit 30 is one of the radiation parts of the antenna module 100, which has a certain effect on the bandwidth of the antenna module 100. And it is loaded on the dielectric resonator block 301 with a dielectric constant of 9.8, which can reduce the overall size of the antenna and enable the antenna module 100 to have better radiation performance. Specifically, please refer to Figure 8, the first radiating stub 324 includes a first stub 3211 and a second stub 3212. The first stub 3211 is vertically disposed on the fourth rectangular radiating portion 304. The second stub 3212 is bent and connected to the first stub 3211. The second radiating stub 322 includes a third stub 3221, a fourth stub 3222, a fifth stub 3223, a sixth stub 3224, and a seventh stub 3225. The third stub 3221, the fourth stub 3222, and the fifth stub 3223 enclose a first groove portion 3226. The fifth stub 3223, the sixth stub 3224, and the seventh stub 3225 enclose a second groove portion 3227. One end of the second stub 3212 is embedded in the first groove portion 3226. One end of the third radiating stub 323 is embedded in the second groove portion 3227. The third radiating stub 323 includes an eighth stub 3231, a ninth stub 3232, a tenth stub 3233, an eleventh stub 3234, and a twelfth stub 3235. The eighth stub 3231, the ninth stub 3232, and the tenth stub 3233 enclose a third groove portion 3236. The seventh stub 3225 is embedded in the third groove portion 3236. The tenth stub 3233, the eleventh stub 3234, and the twelfth stub 3235 enclose a fourth groove portion 3237. One end of the fourth radiating stub 321 is embedded in the fourth groove portion 3237. The fourth radiating stub 324 includes a thirteenth stub 3241, a fourteenth stub 3242, and a fifteenth stub 3243. One end of the thirteenth stub 3241 is bent and connected to the fourteenth stub 3242, and the thirteenth stub 3241, the fourteenth stub 3242, and the fifteenth stub 3243 enclose a fifth groove portion 3244. One end of the eighth stub 3231 is embedded in the fifth groove portion 3244. Through the above settings, please refer to Figure 9 to form the radiating unit 302 in this application, and cooperate with the dielectric resonator block 301, the feeding stub 303, and the second antenna unit 40, which can respectively radiate signals of 2.4 - 2.5 GHz and 5.15 GHz - 7.125 GHz, where Figure 9 the midpoints 1 and 2 represent the radiating signals of the first antenna unit 30, and the points 3 and 4 represent the radiating signals of the feeding stub 303.

[0033] Please refer back to Figure 2 , the dielectric substrate 10 is further provided with a clearance area 101. The first antenna unit 30 is clear of obstacles and disposed in the clearance area 101, making the antenna module 100 highly line - portable and suitable for various mobile communication devices.

[0034] Please continue to refer back to Figure 2The antenna module 100 includes a plurality of metal posts 50. The dielectric substrate 10 is provided with a plurality of through holes (not shown in the figure). One of the metal posts 50 passes through one of the through holes and abuts against the first conductive layer 20 and the second conductive layer 50 respectively, so as to reduce the risk of the antenna module 100 falling off due to external force factors.

[0035] The beneficial effects of the embodiments of the present application are as follows: Different from the prior art, the embodiments of the present application provide an antenna module 100, which includes a dielectric substrate 10, a first conductive layer 20, a second conductive layer 50, a first antenna unit 30, and a second antenna unit 40. The dielectric substrate 10, the first conductive layer 20, and the second conductive layer 50 are stacked, and the second conductive layer 50 and the first conductive layer 20 are arranged opposite to each other. The first antenna unit 30 is disposed on the first conductive layer 20. The first radiation unit 302 includes a dielectric resonance block 301, a radiation unit 302, and a feeding branch 303. The radiation branch covers the dielectric resonance block 301, and the feeding branch 303 is connected to the radiation branch. The second antenna unit 40 is disposed on the second conductive layer 50, and the feeding branch 303 is connected to the second radiation unit 302. By disposing the first antenna unit 30 on the first conductive layer 20 and the second antenna unit 40 on the second conductive layer 50, multi-band coverage is achieved, and it can be loaded into a communication device terminal as an independent WI-FI antenna product to meet the requirements of various mobile terminals.

[0036] 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, reference may be made to the above embodiments, which will not be elaborated herein.

[0037] The above are only the embodiments of the present application, and do not limit the patent scope of the present application accordingly. 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: dielectric substrate; a first conductive layer; a second conductive layer, wherein the dielectric substrate, the first conductive layer and the second conductive layer are stacked, and the second conductive layer and the first conductive layer are arranged opposite to each other; a first antenna unit, arranged on the first conductive layer, the first antenna unit comprising a dielectric resonator block, a radiation unit and a feeding branch, the radiation unit covers the dielectric resonator block, and the feeding branch is connected to the radiation unit; The second antenna unit is arranged on the second conductive layer, and the feeding branch is connected to the second antenna unit.

2. The antenna module according to claim 1, characterized in that: The first conductive layer is provided with a feeding point and a transmission line, and one end of the transmission line is connected to the feeding point; The feeding branch includes a first radiating portion, a first rectangular radiating portion, a second rectangular radiating portion, a second radiating portion and a third rectangular radiating portion, the first rectangular radiating portion is connected to the first radiating portion and the second rectangular radiating portion respectively, the first rectangular radiating portion is vertically connected to the second rectangular radiating portion, the second radiating portion is connected to the second rectangular radiating portion and the third rectangular radiating portion respectively, and the second radiating portion is connected to the transmission line, and the third rectangular radiating portion is connected to the radiating unit.

3. The antenna module according to claim 1, characterized in that: The radiation unit includes a first radiation branch, a second radiation branch, a third radiation branch and a fourth radiation branch, and the first radiation branch, the second radiation branch, the third radiation branch and the fourth radiation branch are sequentially arranged on the side wall of the dielectric resonance block.

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, the third radiation branch includes an eighth branch, a ninth branch, a sixth branch and a seventh branch. The tenth branch, the eleventh branch and the twelfth branch, the eighth branch, the ninth branch and the tenth branch together form a third groove, the seventh branch is embedded in the third groove, the tenth branch, the eleventh branch and the twelfth branch together form a fourth groove, one end of the fourth radiating branch is embedded in the fourth groove, the fourth radiating branch includes the thirteenth branch, the fourteenth branch and the fifteenth branch, one end of the thirteenth branch is bent and connected to the fourteenth branch, and the thirteenth branch, the fourteenth branch and the fifteenth branch together form a fifth groove, and one end of the eighth branch is embedded in the fifth groove.

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

6. The antenna module according to claim 1, characterized in that: The antenna module is further provided with a parasitic branch, and the parasitic branch is provided on the second conductive layer.

7. The antenna module according to claim 1, characterized in that: The dielectric substrate is also provided with a clearance area, and the first antenna unit is clearance-disposed in the clearance area.

8. The antenna module according to claim 1, characterized in that: The dielectric substrate is also provided with a metallized via hole, and the feeding branch is connected to the second antenna unit through the metallized via hole.

9. The antenna module according to claim 1, characterized in that: The antenna module includes a plurality of metal pillars. The dielectric substrate 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 conductive layer and the second conductive layer respectively.

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

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