阅读说明：本技术 用于第五代移动通信技术的单槽孔天线 (Single slot antenna for fifth generation mobile communication technology ) 是由 林长青 李骏扬 黄兆雄 颜红方 曾国祯 李荣耀 于 2021-09-07 设计创作，主要内容包括：本发明公开一种用于第五代移动通信技术的单槽孔天线,包括金属片、槽孔以及馈入金属线。细长形的槽孔设于平面式的金属片,槽孔包括分叉部、延伸部与分支部,分叉部由槽孔的短侧边延伸进入槽孔的内部以产生分岔,分叉部连接延伸部,延伸部继续延长分岔,分叉部与延伸部平行于槽孔的长侧边,分叉部与延伸部的连接处具有馈入端。分支部由分叉部与延伸部的连接处朝向相反于延伸部的方向延伸。馈入金属线垂直于长侧边且延伸入槽孔以连接馈入端,使馈入金属线垂直于延伸部。馈入金属线除了用以馈入以及将槽孔区分为第一区块与第二区块。馈入金属线、延伸部与分叉部区分出第一区块。馈入金属线、分支部与分叉部区分出第二区块。如此达到多频工作的效果。(The invention discloses a single-slot antenna for the fifth generation mobile communication technology, which comprises a metal sheet, a slot and a feed-in metal wire. The elongated slot hole is arranged on the planar metal sheet and comprises a branching part, an extending part and a branch part, the branching part extends into the slot hole from the short side of the slot hole to generate branching, the branching part is connected with the extending part, the extending part continues to extend the branching part, the branching part and the extending part are parallel to the long side of the slot hole, and a feed-in end is arranged at the connection part of the branching part and the extending part. The branch part extends from the junction of the bifurcation part and the extension part towards the direction opposite to the extension part. The feed-in metal wire is vertical to the long side edge and extends into the slot hole to be connected with the feed-in end, so that the feed-in metal wire is vertical to the extending part. The feed-in metal wire is used for feeding in and dividing the slot into a first block and a second block. The feed-in metal wire, the extension part and the fork part are used for dividing a first block. The feed-in metal wire, the branch part and the fork part are divided into a second block. Thus, the effect of multi-frequency operation is achieved.)

1. A single slot antenna for a fifth generation mobile communication technology, comprising:

a metal sheet in a planar form;

a slot hole formed in the metal sheet, the slot hole being elongated, the slot hole including a bifurcation portion extending from a short side of the slot hole into an interior of the slot hole to cause bifurcation of the slot hole, the bifurcation portion connecting to the extension portion, the extension portion continuing to extend the bifurcation, the bifurcation portion and the extension portion both being parallel to a long side of the slot hole, a connection portion of the bifurcation portion and the extension portion having a feed end, wherein the branch portion extends from the connection portion of the bifurcation portion and the extension portion toward a direction opposite to the extension portion; and

a feed-in metal wire, which is perpendicular to the long side and extends into the slot hole to connect the feed-in end, so that the feed-in metal wire is perpendicular to the extending part;

the feeding metal wire is used for feeding and also is used for dividing the slot into a first block and a second block, wherein the feeding metal wire, the extension part and the bifurcation part divide the slot into the first block, and the feeding metal wire, the branch part and the bifurcation part divide the slot into the second block.

2. The single-slot antenna for fifth generation mobile communication technology according to claim 1, wherein the metal sheet has a first boundary and a second boundary, the first boundary and the second boundary being perpendicular to each other, the short sides of the slots being parallel to the first boundary, the long sides of the slots being parallel to the second boundary, the slots being close to the first boundary and the second boundary.

3. The single-slot antenna for fifth generation mobile communication technology according to claim 1, wherein the first block is configured to excite a 2.4GHz resonance mode.

4. The single-slot antenna for fifth generation mobile communication technology according to claim 1, wherein the first block is configured to excite a resonance mode of 5 GHz.

5. The single-slot antenna for fifth generation mobile communication technology according to claim 1, wherein the second block is configured to excite a frequency band between 3.3GHz and 4.2GHz in a Sub-6 frequency band of the fifth generation mobile communication technology.

6. The single slot antenna for the fifth generation mobile communication technology according to claim 1, wherein the branch portion is configured to excite a resonance mode of a WiFi 6E band, and the WiFi 6E band includes a band from 5.925GHz to 7.125 GHz.

7. The single-slot antenna for fifth generation mobile communication technology as claimed in claim 1, wherein the feed wire is a center conductor of a coaxial cable, wherein an outer conductor of the coaxial cable is connected to the metal plate for grounding, and the outer conductor of the coaxial cable is connected to the metal plate at the long side of the slot.

8. The single slot antenna for fifth generation mobile communication technology according to claim 1, wherein the branch portion connects a connection of the diverging portion and the extending portion, and the branch portion extends toward a direction opposite to the extending portion such that at least a portion of the branch portion is parallel to the diverging portion.

9. The single-slot antenna for fifth generation mobile communication technology of claim 1, wherein the first block is substantially U-shaped, and the second block is also substantially U-shaped.

10. The single-slot antenna for the fifth generation mobile communication technology of claim 1, wherein the length of the long side of the slot is between 53 mm and 57 mm, the size of the short side of the slot is 4 mm, and the width of the bifurcation and the extension is 1 mm.

Technical Field

The present invention relates to a mobile communication antenna, and more particularly, to a single slot antenna for a fifth generation mobile communication technology.

Background

The antenna of the existing mobile device such as a notebook computer or a smart phone needs to be applied with a plurality of communication specifications and a plurality of frequency bands, and the fifth generation mobile communication provides a larger bandwidth and can improve the information response speed. Besides the improvement of data transmission quantity, a new derivative application is provided, and information functions which are difficult to realize in the past are realized.

The conventional fifth generation mobile communication is mainly divided into two frequency ranges, one of which is the application called Sub-6 below 6GHz, and provides a new application frequency band and a new algorithm encoding method. And secondly, the method provides huge data flow and higher information response capability for a Millimeter Wave (mmWave for short) frequency band. The application below 6GHz is a solution with lower cost and lower threshold investment for the resources of the conventional manufacturers. However, compared to a conventional Wireless Wide Area Network (WWAN), the operating bandwidth required by the antenna is further increased, so that the number of antennas or the size of the antennas needs to be further increased, and thus new difficult challenges are created for antenna design in terms of new product design.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a single slot antenna for a fifth generation mobile communication technology, which solves the problem of increasing the bandwidth of the antenna to meet the application of multi-frequency operation without increasing the number or size of the antennas.

The technical solution of the present invention is that, a single slot antenna for a fifth generation mobile communication technology, comprising:

a metal sheet in a planar form;

a slot hole formed in the metal sheet, the slot hole being elongated, the slot hole including a bifurcation portion extending from a short side of the slot hole into an interior of the slot hole to cause bifurcation of the slot hole, the bifurcation portion connecting to the extension portion, the extension portion continuing to extend the bifurcation, the bifurcation portion and the extension portion both being parallel to a long side of the slot hole, a connection portion of the bifurcation portion and the extension portion having a feed end, wherein the branch portion extends from the connection portion of the bifurcation portion and the extension portion toward a direction opposite to the extension portion; and

a feed-in metal wire, which is perpendicular to the long side and extends into the slot hole to connect the feed-in end, so that the feed-in metal wire is perpendicular to the extending part;

the feeding metal wire is used for feeding and also is used for dividing the slot into a first block and a second block, wherein the feeding metal wire, the extension part and the bifurcation part divide the slot into the first block, and the feeding metal wire, the branch part and the bifurcation part divide the slot into the second block.

Further, the metal sheet has a first boundary and a second boundary, the first boundary and the second boundary being perpendicular to each other, the short sides of the slots being parallel to the first boundary, the long sides of the slots being parallel to the second boundary, the slots being adjacent to the first boundary and the second boundary.

Further, the first block is used for exciting a resonance mode of 2.4 GHz.

Further, the first block is used for exciting a resonance mode of 5 GHz.

Further, the second block is used for exciting a frequency band between 3.3GHz and 4.2GHz in Sub-6 frequency bands of a fifth generation mobile communication technology.

Further, the branch portion is used for exciting a resonance mode of a WiFi 6E frequency band, and the WiFi 6E frequency band includes a frequency band from 5.925GHz to 7.125 GHz.

Further, the feed metal wire is a central conductor of a coaxial cable, wherein an outer conductor of the coaxial cable is connected to the metal plate for grounding, and the outer conductor of the coaxial cable is connected to the metal plate at the long side of the slot hole.

Further, the branch portion connects a junction of the diverging portion and the extending portion, and the branch portion extends toward a direction opposite to the extending portion so that at least a portion of the branch portion is parallel to the diverging portion.

Further, the first block is substantially U-shaped, and the second block is also substantially U-shaped.

Further, the length of the long side of the slot is between 53 mm and 57 mm, the size of the short side of the slot is 4 mm, and the width of the bifurcation and the extension part is 1 mm.

The technical scheme provided by the invention has the advantages that under the condition that the original size of the antenna is not increased particularly, the single slot antenna is used for multi-frequency application, the antenna is suitable for WiFi-2G, WiFi-5G and WiFi 6E specifications, can be used for a Sub-6 frequency band of a fifth generation mobile communication technology, has the advantages of simple structure and wide frequency band application, and has high industrial application value.

Drawings

Fig. 1 is a schematic diagram of a single slot antenna for fifth generation mobile communication technology according to an embodiment of the present invention, which does not include a feeding metal line.

Fig. 2 is a schematic diagram of a single slot antenna for fifth generation mobile communication technology according to an embodiment of the present invention, which includes a feeding metal line.

Fig. 3 is a dimension diagram of a single slot antenna for a fifth generation mobile communication technology according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the parameters of the dual-port network S11 of the single slot antenna for the fifth generation mobile communication technology according to the embodiment of the present invention, which vary with frequency.

Fig. 5 is a graph illustrating the efficiency of a single slot antenna for a fifth generation mobile communication technology according to an embodiment of the present invention as a function of frequency.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.

Referring to fig. 1, fig. 2 and fig. 3 together, fig. 1 is a schematic diagram of a single slot antenna for a fifth generation mobile communication technology, which does not include a feeding metal line according to an embodiment of the present invention, fig. 2 is a schematic diagram of a single slot antenna for a fifth generation mobile communication technology, which includes a feeding metal line according to an embodiment of the present invention, and fig. 3 is a dimensional diagram of a single slot antenna for a fifth generation mobile communication technology according to an embodiment of the present invention. The present embodiment provides a single slot antenna for the fifth generation mobile communication technology, which includes a metal plate 1, a slot 2 and a feeding metal line 3, where the feeding metal line 3 can be seen in fig. 2. The metal sheet 1 is planar. The slot 2 is provided in the metal sheet 1, the slot 2 being elongated, for example a substantially elongated rectangular slot. The slot 2 comprises a bifurcation 21, an extension 22 and a branch 23, the bifurcation 21 extends from the short side 201 of the slot 2 into the slot 2 to branch the slot 2, the bifurcation 21 connects the extension 22, the extension 22 is used to continue the bifurcation, the bifurcation 21 and the extension 22 are both parallel to the long side 202 of the slot 2, the junction of the bifurcation 21 and the extension 22 has a feed end 24, wherein the branch 23 extends from the junction of the bifurcation 21 and the extension 22 toward the direction opposite to the extension 22. The feeding wire 3 is perpendicular to the long side 202 and extends into the slot 2 to connect the feeding end 24, so that the feeding wire 3 is perpendicular to the extending portion 22. The feeding metal line 3 is used for feeding, and also divides the slot 2 into a first block 25 and a second block 26, wherein the feeding metal line 3, the extension portion 22 and the bifurcation portion 21 divide the slot 2 into the first block 25, and wherein the feeding metal line 3, the bifurcation portion 23 and the bifurcation portion 21 divide the slot 2 into the second block 26. The relevant dimensions of the single-slot components of this embodiment are shown in FIG. 3, which is for illustration purposes only and is not intended to limit the present invention.

In terms of practical application of the product, the metal sheet 1 has a first boundary 101 and a second boundary 102, the first boundary 101 and the second boundary 102 are perpendicular to each other, the short side 201 of the slot 2 is parallel to the first boundary 101, the long side 202 of the slot 2 is parallel to the second boundary 102, and the slot 2 is close to the first boundary 101 and the second boundary 102. Therefore, the single-slot antenna is suitable for the surrounding corners of the circuit board of the wireless communication device or is suitable for being arranged at the position, close to the edge of the shell, of the wireless communication device with the metal shell.

Preferably, the exemplary embodiment of the feeding wire 3 is as follows, the feeding wire 3 is a central conductor of a coaxial cable 300, wherein the outer conductor 301 of the coaxial cable 300 is connected to the metal plate 1 for grounding (Ground), and the outer conductor 301 of the coaxial cable is connected to the metal plate 1 at the long side 202 of the slot 2.

Preferably, the branch portion 23 connects the junction of the branch portion 21 and the extension portion 22, and the branch portion 23 extends in a direction opposite to the extension portion 22, so that at least a portion of the branch portion 23 is parallel to the branch portion 21. Preferably, the first block 25 is substantially U-shaped, and the second block 26 is also substantially U-shaped. In the aspect of the first block 25, the extension portion 22 is used to make the first block 25 have a U-shape. In the second block 26, the branch portion 23 is used to make the second block 26 have a U-shape. Thus, the path of resonance can be effectively extended in the same usage space. Referring to fig. 3 again, in terms of the preferred practical size of the slot 2, the length of the long side 202 of the slot 2 is between 53 mm and 57 mm, and the size of the short side 201 of the slot 2 is 4 mm, wherein the width of the fork 21 and the extension 22 is 1 mm.

Referring to fig. 4, fig. 4 is a schematic diagram of the dual-port network S11 parameter of the single-slot antenna for the fifth generation mobile communication technology according to the embodiment of the present invention changing with frequency. For the resonant mode of operation, the first block 25 is used to excite the resonant mode of 2.4GHz, and the first block 25 is also used to excite the resonant mode of 5GHz, which can be used for the frequency bands of WiFi-2G and WiFi-5G. The second block 26 is used to excite the frequency band between 3.3GHz to 4.2GHz in the Sub-6 band of the fifth generation mobile communication technology. The branch portion 23 is configured to excite a resonance mode of a WiFi 6E band, where the WiFi 6E band includes a band from 5.925GHz to 7.125 GHz. Referring to fig. 5, the efficiency of the single-slot antenna of the present embodiment is in the above-mentioned frequency bands, and the antenna has good antenna efficiency for consumer wireless communication products (especially wireless terminal devices), which meets the needs of the industry.

In summary, the embodiments of the present invention provide a single slot antenna for the fifth generation mobile communication technology, which uses a single slot antenna for multi-band applications without increasing the original size of the antenna, and is suitable for WiFi-2G, WiFi-5G and WiFi 6E specifications, and can be used in Sub-6 band of the fifth generation mobile communication technology, and has the advantages of simple structure and wide band application, and high industrial application value.