Antenna array and communication equipment

Abstract

The embodiment of the invention relates to the technical field of antennas, and discloses an antenna array and communication equipment, and the antenna array comprises a substrate, a first metal plate, a first sub-antenna, a second sub-antenna and a second metal plate. The first sub-antenna is arranged on the first metal plate in a clearance manner, the first sub-antenna comprises a first radiation element, a first antenna unit, a second antenna unit and a first feed part, the first radiation element covers the first antenna unit, and the second antenna unit is arranged on the second surface; the second sub-antenna comprises a second radiation element, a third antenna unit, a fourth antenna unit and a second feed part, the second radiation element covers the third antenna unit, and the fourth antenna unit is arranged on the second surface; according to the antenna array, the second metal plate is arranged on the second surface, so that the coverage requirements of the antenna array on different frequency bands can be met.

Description

Technical Field

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

[0002] Antennas are components that radiate and receive electromagnetic waves, and transmit information through electromagnetic waves. In recent years, communication technology has developed rapidly, and various types of electronic products have become thinner and lighter. In order to adapt to the thinness of electronic products, components such as antennas in electronic products also need to be miniaturized. In communication equipment, WiFi (Wireless Fidelity) antennas and BT (Bluetooth) antennas are two commonly used and necessary antennas.

[0003] In the process of implementing the embodiments of the present application, the inventors found that conventional mobile terminal antennas currently on the market are implemented on the bottom shell of the communication device. Due to space limitations, the area of ​​the antenna is also limited, which limits the antenna bandwidth and cannot meet the multi-band high-efficiency requirements of WIFI and BT antennas. Summary of the invention

[0004] The main technical problem solved by the embodiments of the present application is to provide an antenna array that can generate four different frequency bands through a first sub-antenna and a second sub-antenna to meet the coverage requirements of the antenna array in different frequency bands, and has the characteristics of miniaturization of the antenna and small space occupation.

[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the present application is: providing an antenna array, including a substrate, a first metal plate, a first sub-antenna, a second sub-antenna and a second metal plate; the substrate includes a first surface and a second surface arranged opposite to each other; the first sub-antenna is arranged in clearance on the first metal plate, the first sub-antenna includes a first radiating element, a first antenna unit, a second antenna unit and a first feeding part, the first radiating element covers the first antenna unit, the first feeding part is respectively connected to the first metal plate and the first antenna unit, and the second antenna unit is arranged on the second surface; the second sub-antenna is arranged in clearance on the first metal plate, and the first sub-antenna and the second sub-antenna are symmetrically arranged, the second sub-antenna includes a second radiating element, a third antenna unit, a fourth antenna unit and a second feeding part, the second radiating element covers the third antenna unit, the second feeding part is respectively connected to the first metal plate and the third antenna unit, and the fourth antenna unit is arranged on the second surface; the second metal plate is arranged on the second surface.

[0006] Optionally, the first radiation element includes a first radiation pattern and a first dielectric resonator block, the first antenna unit includes a first radiation branch and a second radiation branch, the first dielectric resonator block covers the first radiation branch, the first radiation pattern covers the first dielectric resonator block, and the first radiation pattern is connected to the first radiation branch, and the other end of the first radiation branch is connected to the second radiation branch.

[0007] Optionally, the first radiating branch includes a first rectangular radiating portion, a first branch, a second rectangular radiating portion and a third rectangular radiating portion, the two ends of the first branch are respectively connected to the first rectangular radiating portion and the second rectangular radiating portion, the second rectangular radiating portion and the third rectangular radiating portion are arranged at intervals, and the third rectangular radiating portion is respectively extended with a second branch and a third branch, and the third branch is connected to the second radiating branch.

[0008] Optionally, the second radiating branches include a fourth branch, a fifth branch and a sixth branch, the fourth branch is connected to the fifth branch and the sixth branch respectively, the sixth branch is connected to the third branch, and the second radiating branches are of a Y-shaped structure.

[0009] Optionally, the radiation pattern includes a first conductive portion and a second conductive portion, the first conductive portion is embedded in the second conductive portion, one end of the first conductive portion is connected to the second rectangular radiation portion, and the second conductive portion is connected to the third rectangular radiation portion.

[0010] Optionally, the second radiation element includes a second radiation pattern and a second dielectric resonator block, the second antenna unit includes a third radiation branch and a fourth radiation branch, the second dielectric resonator block covers the third radiation branch, the second radiation pattern covers the second dielectric resonator block, and the second radiation pattern is connected to the third radiation branch, and the other end of the third radiation branch is connected to the fourth radiation branch.

[0011] Optionally, the antenna array further includes a first slot, and the first slot is arranged between the first sub-antenna and the second sub-antenna.

[0012] Optionally, the antenna array further includes a third sub-antenna and a fourth sub-antenna, the third sub-antenna and the fourth sub-antenna are respectively disposed in clearance on the first metal plate, and the third sub-antenna and the fourth sub-antenna are symmetrically disposed.

[0013] Optionally, the antenna array also includes a second slot, a third slot and a fourth slot, the first slot is arranged between the third sub-antenna and the fourth sub-antenna, the third slot is arranged between the first sub-antenna and the third sub-antenna, and the fourth slot is arranged between the second sub-antenna and the fourth sub-antenna.

[0014] In order to solve the above technical problems, another technical solution adopted in the embodiments of the present application is: providing a communication device, comprising any of the above antenna arrays.

[0015] The embodiment of the present application provides an antenna array, including a substrate, a first metal plate, a first sub-antenna, a second sub-antenna and a second metal plate; the substrate includes a first surface and a second surface arranged oppositely; the first sub-antenna is arranged in the clearance on the first metal plate, the first sub-antenna includes a first radiating element, a first antenna unit, a second antenna unit and a first feeding part, the first radiating element covers the first antenna unit, the first feeding part is connected to the first metal plate and the first antenna unit respectively, and the second antenna unit is arranged on the second surface; the second sub-antenna is arranged in the clearance on the first metal plate, and the first sub-antenna and the second sub-antenna are arranged symmetrically, the second sub-antenna includes a second radiating element, a third antenna unit, a fourth antenna unit and a second feeding part, the second radiating element covers the third antenna unit, the second feeding part is connected to the first metal plate and the third antenna unit respectively, and the fourth antenna unit is arranged on the second surface; the second metal plate is arranged on the second surface. By arranging the first sub-antenna and the second sub-antenna, multiple frequency bands of WI FI 2.4-2.5GHZ, WI FI 5.15-5.85GHZ, and WI FI 6E can be covered, and better energy radiation can be achieved in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. 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 according to the actual scale.

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

[0018] Figure 2 is a schematic diagram of the antenna array of another perspective of an embodiment of the present application;

[0019] Figure 3 is an exploded view of the antenna array of an embodiment of the present application;

[0020] Figure 4 yes Figure 3 Enlarged view of part A in the middle;

[0021] Figure 5 yes Figure 3 Enlarged view of middle part B;

[0022] Figure 6is a frequency coverage diagram of the antenna array of an embodiment of the present application;

[0023] Figure 7 is an efficiency diagram of the antenna array according to an embodiment of the present application.

[0024] The reference numerals in the specific implementation manner are as follows: 100, antenna array; 10, substrate; 101, first surface; 102, second surface; 20, first metal plate; 30, first sub-antenna; 301, first radiation element; 302, first antenna unit; 303, second antenna unit; 321, third radiation branch; 322, fourth radiation branch; 40, second sub-antenna; 401, second radiation element; 411, second radiation pattern; 412, second dielectric resonator block; 402, third antenna unit; 403, fourth antenna unit; 50, second metal plate; 613, second antenna unit; 614, second antenna unit; 615, second antenna unit; 616, second antenna unit; 617, second antenna unit; 618, second antenna unit; 619, second antenna array; 620, third antenna unit; 621, third antenna unit; 622, fourth antenna unit; 623, second antenna unit; 624, second antenna array; 625, second antenna array; 626, third antenna unit; 627, fourth antenna unit; 628, second antenna array; 629, second antenna array; 630, third antenna unit; 631, fourth antenna unit; 632, fourth antenna unit; 633, fifth antenna unit; 634, sixth antenna unit; 635, sixth antenna unit; 636, sixth antenna unit; 637, sixth antenna unit; 638, sixth antenna unit; 639, sixth antenna unit; 640, seventh antenna unit; 641, seventh antenna unit; 642, seventh antenna unit; 643, seventh antenna unit; 644, seventh antenna unit; 645, seventh antenna unit; 646, seventh antenna unit; 647, seventh antenna unit; 648, seventh antenna unit; 649, seventh antenna unit; 650 0. third sub-antenna; 70. fourth sub-antenna; 80. first slot; 90. second slot; 110. third slot; 120. fourth slot; 311. first radiation pattern; 3111. first conductive portion; 3112. second conductive portion; 312. first dielectric resonator block; 321. first radiation branch; 322. second radiation branch; 3211. first rectangular radiation portion; 3212. first branch; 3213. second rectangular radiation portion; 3214. third rectangular radiation portion; 3221. fourth branch; 3222. fifth branch; 3223. sixth branch. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art 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 intended 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.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] See also Figure 1 and Figure 2 The antenna array 100 includes a substrate 10, a first metal plate 20, a second metal plate 50 and a first sub-antenna 30. The substrate 10 includes a first surface 101 and a second surface 102 arranged opposite to each other. The first metal plate 20 is arranged on the first surface 101, and the second metal plate 50 is arranged on the second surface 102. The first sub-antenna 30 is arranged in a clearance on the first metal plate 20 to ensure electromagnetic radiation without interference. The first sub-antenna 30 includes a first radiating element 301, a first antenna unit 302, a second antenna unit 303 and a first feeding part (not shown). The first radiating element 301 covers the first antenna unit 302, which can reduce the overall size of the antenna and enable the antenna array 100 to have better radiation performance. The first feeding part is respectively connected to the first metal plate 20 and the first antenna unit 302 to transmit the radio frequency signal from the feed source to the first antenna unit 302. Please combine Figure 6 and Figure 7 , Figure 6 is the frequency coverage diagram of the antenna array 100, Figure 7 It is the antenna efficiency diagram of the antenna array 100, which achieves coverage of the frequency band 2.4HGZ-2.5GHZ and the frequency band 5.15GHZ-5.85GHZ. The second antenna unit 303 is arranged on the second surface 102 to achieve coverage of the frequency band 2.4HGZ-2.5GHZ, further increase the electrical length, reduce the antenna size of the first antenna unit 302, and achieve miniaturization.

[0029] See also Figure 3 and Figure 4The first radiation element 301 includes a first radiation pattern 311 and a first dielectric resonator block 312. The first antenna unit 302 includes a first radiation branch 321 and a second radiation branch 322. The first dielectric resonator block 312 covers the first radiation branch 321. The other end of the first radiation branch 321 is connected to the second radiation branch 322 so as to convert the received electromagnetic wave into a radio frequency signal. The first radiation element 301 can optimize the radiation efficiency and bandwidth of the antenna at a specific frequency, and is loaded on the first dielectric resonator block 312 with a dielectric constant of 9.8, which can reduce the overall size of the antenna unit and enable the antenna to have better radiation performance. By connecting with the first radiation branch 321 and the second radiation branch 322, a distributed capacitor is formed, thereby further reducing the overall size of the antenna array 100. For details, please continue to refer to Figure 3 The first radiation branch 321 includes a first rectangular radiation portion 3211, a first branch 3212, a second rectangular radiation portion 3213 and a third rectangular radiation portion 3214, the two ends of the first branch 3212 are respectively connected to the first rectangular radiation portion 3211 and the second rectangular radiation portion 3213, the second rectangular radiation portion 3213 and the third rectangular radiation portion 3214 are arranged at intervals, and the third rectangular radiation portion 3214 is respectively extended to have a second branch 2315 and a third branch 2316, the third branch 2316 and the second The first radiation pattern 311 covers the first dielectric resonator block 312, the first radiation pattern 311 includes a first conductive portion 3111 and a second conductive portion 3112, the first conductive portion 3111 is embedded in the second conductive portion 3112, one end of the first conductive portion 3111 is connected to the second rectangular radiation portion 3213, the second conductive portion 3112 is connected to the third rectangular radiation portion 3214, and the first radiation pattern 311 is connected to the first radiation branch 321, please combine Figure 6 and Figure 7 , Figure 6 is the frequency coverage diagram of the antenna array 100, Figure 7 It is the antenna efficiency diagram of the antenna array 100. Through the design of the above-mentioned first radiation branch 321, it can radiate a low frequency of 2.4GHZ-2.5GHZ. The second radiation branch 322 includes a fourth branch 3221, a fifth branch 3222 and a sixth branch 3223. The fourth branch 3221 is respectively connected to the fifth branch 3222 and the sixth branch 3223, the sixth branch 3223 is connected to the third branch, and the second radiation branch 322 is a Y-shaped structure. Through the above design, the coverage of the frequency band 2.4GHZ-2.5GHZ and the coverage of the frequency band 5.15GHZ-5.85GHZ are achieved.

[0030] Please refer to Figure 2 The second antenna unit 303 is disposed in clearance on the second metal plate 50, and the second antenna unit 303 is connected to the first antenna unit 302 and the first radiation element 301 through the first feeding part to achieve coverage of the frequency band 2.4GHZ-2.5GHZ, further reducing the antenna size of the first antenna unit 302 to achieve miniaturization.

[0031] Please refer to Figure 1 The antenna array 100 also includes a second sub-antenna 40, which is arranged in the first metal plate 20 in a clear space to ensure electromagnetic radiation without interference, and the first sub-antenna 30 and the second sub-antenna 40 are arranged symmetrically to achieve energy radiation in different directions, and the second sub-antenna 40 includes a second radiating element 401, a third antenna unit 402, a fourth antenna unit 403 and a second feeder (not shown), the second radiating element 401 covers the third antenna unit 402, and the second feeder is connected to the first metal plate 20 and the third antenna unit 402 respectively, and transmits the radio frequency signal from the feed source to the third antenna unit 402 to achieve coverage of the frequency band 2.4HGZ-2.5GHZ and the frequency band 5.15GHZ-5.85GHZ, and the fourth antenna unit 403 is arranged on the second surface 102. To achieve coverage of the frequency band 2.4HGZ-2.5GHZ, further increase the electrical length, reduce the antenna size of the third antenna unit 402, and achieve miniaturization.

[0032] Please refer to Figure 1 The antenna array 100 also includes a first slot 80, which is disposed between the first sub-antenna 30 and the second sub-antenna 40. The first slot 80 can reduce the electromagnetic coupling between the first sub-antenna 30 and the second sub-antenna 40, thereby reducing interference therebetween and improving isolation between the antennas.

[0033] In the embodiment of the present application, the second metal plate is further provided with a fifth slot 130 , and the fifth slot 130 is provided between the second antenna unit 303 and the fourth antenna unit 402 to improve the isolation between the second antenna unit 303 and the fourth antenna unit 402 .

[0034] See also Figure 4 and Figure 5The second radiation element 401 includes a second radiation pattern 411 and a second dielectric resonator block 412, the second antenna unit 303 includes a third radiation branch 321 and a fourth radiation branch 322, the second dielectric resonator block 412 covers the third radiation branch 321, the second radiation pattern 411 covers the second dielectric resonator block 412, and the second radiation pattern 411 is connected to the third radiation branch 321, and the other end of the third radiation branch 321 is connected to the fourth radiation branch 322. The first radiation element 301 can optimize the radiation efficiency and bandwidth of the antenna at a specific frequency, and is loaded on the second dielectric resonator block 412 with a dielectric constant of 9.8, which can reduce the overall size of the antenna unit and enable the antenna to have better radiation performance. In addition, by connecting with the third radiation branch 321 and the fourth radiation branch 322, a distributed capacitor is formed, thereby further reducing the overall size of the antenna array 100.

[0035] Specifically, the second radiation pattern 411 includes a third conductive portion 4111 and a fourth conductive portion 4112, the third conductive portion 4111 is embedded in the fourth conductive portion 4112, one end of the third conductive portion 4111 is connected to the third radiation branch 321, and one end of the fourth conductive portion 4112 is directly connected to the fourth radiation, the third radiation branch 321 includes a fourth rectangular radiation portion 3211, a seventh branch 3212, a fifth rectangular radiation portion 3213 and a sixth rectangular radiation portion 3214, the two ends of the seventh branch 3212 are respectively connected to the fourth rectangular radiation portion 3211 and the fifth rectangular radiation portion 3213, the fourth rectangular radiation portion 3211 and the fifth rectangular radiation portion 3213 are arranged at intervals, and the sixth rectangular radiation portion 3214 is divided into An eighth branch 3215 and a ninth branch 3216 are respectively extended, and the ninth branch 3216 is connected to the fourth radiation branch 322. Through the design of the third radiation branch 321, a low frequency of 2.4GHZ-2.5GHZ can be radiated. The fourth radiation branch 322 includes a tenth branch 3221, an eleventh branch 3222 and a twelfth branch 3223. The tenth branch 3221 is respectively connected to the eleventh branch 3222 and the twelfth branch 3223, the eleventh branch 3222 is connected to the twelfth branch 3223, and the fourth radiation branch 322 is a Y-shaped structure. Through the above design, coverage of the frequency band 2.4GHZ-2.5GHZ and the frequency band 5.15GHZ-5.85GHZ are achieved.

[0036] Please refer to Figure 1The antenna array 100 also includes a third sub-antenna 60 and a fourth sub-antenna 70, and the third sub-antenna 60 and the fourth sub-antenna 70 are respectively arranged in the first metal plate 20 in a clearance manner, and the third sub-antenna 60 and the fourth sub-antenna 70 are symmetrically arranged, which can ensure the balance of the antenna array 100 in terms of radiation performance, impedance matching, etc. In the embodiment of the present application, through four sub-antennas, while increasing the communication rate, each direction can have a better radiation field, which solves the problem of single and uneven radiation direction of conventional antennas. The beams generated by the four sub-antennas are directed in different directions, which reflects that the antenna array 100 in the present application has the characteristic of directional pattern diversity, indicating that the antenna array 100 in the present application can generate four directional beams to meet the energy requirements in different directions, and has the characteristics of miniaturized antenna, small space occupation, and easy installation. The antenna array 100 also includes a second slot 90, a third slot 110 and a fourth slot 120. The first slot 80 is arranged between the third sub-antenna 60 and the fourth sub-antenna 70, the third slot 110 is arranged between the first sub-antenna 30 and the third fourth sub-antenna, and the fourth slot 120 is arranged between the second sub-antenna 40 and the fourth sub-antenna 70. By arranging slots between the sub-antennas, the electromagnetic coupling between them can be effectively reduced, thereby improving the overall performance of the antenna array 100, thereby changing the current distribution of the antenna array 100, and affecting its radiation pattern, gain, bandwidth and other performance parameters.

[0037] In an embodiment of the present application, the antenna array 100 may also be provided with a plurality of inductors, which are respectively provided on the first sub-antenna 30, the second sub-antenna 40, the third sub-antenna 60 and the fourth sub-antenna 70. By adjusting the parameters of the inductors, tuning may be performed so that the antenna array 100 can be applied to different environments.

[0038] The embodiment of the present application provides an antenna array 100, including a substrate 10, a first metal plate 20, a first sub-antenna 30, a second sub-antenna 40 and a second metal plate 50; the substrate 10 includes a first surface 101 and a second surface 102 arranged opposite to each other; the first sub-antenna 30 is arranged in a clearance on the first metal plate 20, the first sub-antenna 30 includes a first radiation element 301, a first antenna unit 302, a second antenna unit 303 and a first feeding part, the first radiation element 301 covers the first antenna unit 302, the first feeding part is connected to the first metal plate 20 and the first antenna unit 302 respectively, and the first antenna unit 303 is connected to the second antenna unit 303. The second antenna unit 303 is arranged on the second surface 102; the second sub-antenna 40 is arranged in the first metal plate 20, and the first sub-antenna 30 and the second sub-antenna 40 are arranged symmetrically, the second sub-antenna 40 includes a second radiating element 401, a third antenna unit 402, a fourth antenna unit 403 and a second feeder, the second radiating element 401 covers the third antenna unit 402, the second feeder is connected to the first metal plate 20 and the third antenna unit 402 respectively, the fourth antenna unit 403 is arranged on the second surface 102; the second metal plate 50 is arranged on the second surface 102. By arranging the first sub-antenna 30 and the second sub-antenna 40, multiple frequency bands of WI FI 2.4-2.5GHZ, WI FI 5.15-5.85GHZ, and WI FI 6E can be covered, and better energy radiation can be achieved in different directions.

[0039] The embodiment of the present application also provides a communication device. The specific implementation method can refer to the above-mentioned antenna array 100 embodiment, which will not be described one by one here. The above is only an embodiment of the present application. The above is only an embodiment of the present application, and it does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of this application, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An antenna array, characterized in that: include: A substrate including a first surface and a second surface arranged opposite to each other; A first metal plate, disposed on the first surface; a first sub-antenna, which is disposed on the first metal plate in clearance, wherein the first sub-antenna comprises a first radiation element, a first antenna unit, a second antenna unit and a first feeder, wherein the first radiation element covers the first antenna unit, the first feeder is connected to the first metal plate and the first antenna unit respectively, and the second antenna unit is disposed on the second surface; a second sub-antenna, which is disposed in clearance on the first metal plate, and the first sub-antenna and the second sub-antenna are symmetrically disposed, the second sub-antenna comprising a second radiating element, a third antenna unit, a fourth antenna unit, and a second feeding portion, the second radiating element covers the third antenna unit, the second feeding portion is respectively connected to the first metal plate and the third antenna unit, and the fourth antenna unit is disposed on the second surface; The second metal plate is disposed on the second surface.

2. The antenna array according to claim 1, characterized in that: The first radiation element includes a first radiation pattern and a first dielectric resonator block, the first antenna unit includes a first radiation branch and a second radiation branch, the first dielectric resonator block covers the first radiation branch, the first radiation pattern covers the first dielectric resonator block, and the first radiation pattern is connected to the first radiation branch, and the other end of the first radiation branch is connected to the second radiation branch.

3. The antenna array according to claim 2, characterized in that: The first radiating branch includes a first rectangular radiating portion, a first branch, a second rectangular radiating portion and a third rectangular radiating portion, the two ends of the first branch are respectively connected to the first rectangular radiating portion and the second rectangular radiating portion, the second rectangular radiating portion and the third rectangular radiating portion are arranged at intervals, and the third rectangular radiating portion is respectively extended with a second branch and a third branch, and the third branch is connected to the second radiating branch.

4. The antenna array according to claim 3, characterized in that: The second radiating branches include a fourth branch, a fifth branch and a sixth branch, the fourth branch is connected to the fifth branch and the sixth branch respectively, the sixth branch is connected to the third branch, and the second radiating branches are of a Y-shaped structure.

5. The antenna array according to claim 4, characterized in that: The radiation pattern includes a first conductive portion and a second conductive portion, the first conductive portion is embedded in the second conductive portion, one end of the first conductive portion is connected to the second rectangular radiation portion, and the second conductive portion is connected to the third rectangular radiation portion.

6. The antenna array according to claim 1, characterized in that: The second radiation element includes a second radiation pattern and a second dielectric resonator block, the second antenna unit includes a third radiation branch and a fourth radiation branch, the second dielectric resonator block covers the third radiation branch, the second radiation pattern covers the second dielectric resonator block, and the second radiation pattern is connected to the third radiation branch, and the other end of the third radiation branch is connected to the fourth radiation branch.

7. The antenna array according to claim 1, characterized in that: The antenna array further includes a first slot, and the first slot is arranged between the first sub-antenna and the second sub-antenna.

8. The antenna array according to claim 1, characterized in that: The antenna array further includes a third sub-antenna and a fourth sub-antenna, and the third sub-antenna and the fourth sub-antenna are respectively disposed in a clearance on the first metal plate, and the third sub-antenna and the fourth sub-antenna are symmetrically disposed.

9. The antenna array according to claim 1, characterized in that: The antenna array also includes a second slot, a third slot and a fourth slot, the first slot is arranged between the third sub-antenna and the fourth sub-antenna, the third slot is arranged between the first sub-antenna and the third sub-antenna, and the fourth slot is arranged between the second sub-antenna and the fourth sub-antenna.

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

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