TWI791281B - Generation mobile communication technology - Google Patents

Abstract

A single slot antenna for 5^th generation mobile communication technology comprises a metal plate, a slot and a feeding metal line. The slot which is elongated is in the metal plate which is planar. The slot comprises a bifurcation portion, an extending portion and a branch portion. The bifurcation portion enter interior of the slot from a short edge of the slot to generate a fork part. The bifurcation portion connects the extending portion. The extending portion continues to extend the fork part. The bifurcation portion and the extending portion are parallel to a long edge of the slot. A connection region of the bifurcation portion and the extending portion has a feeding terminal. The branch portion extends from the connection region of the bifurcation portion and the extending portion to the opposite direction of the extending portion. The feeding metal line perpendicular to the long edge extends into the slot for connecting the feeding terminal, such that the feeding metal line is perpendicular to the extending portion. Except for feeding, the feeding metal line is also used for dividing the slot into a first block and a second block. The feeding metal line, the extending portion and the bifurcation portion distinguish the first block. The feeding metal line, the branch portion and the bifurcation portion distinguish the second block. Thus, the multiple-bands operation can be achieved.

Description

Single slot antenna for fifth generation mobile communication technology

The present invention relates to a slot antenna, and in particular to a single slot antenna for the fifth generation mobile communication technology.

The antennas of existing mobile devices such as notebook computers or smart phones require multiple communication specifications and multiple frequency band applications. The fifth-generation mobile communication provides greater bandwidth and can improve information response speed. In addition to the increase in data transmission volume, it also provides new derivative applications to realize information functions that were difficult to achieve in the past.

The existing fifth-generation mobile communication is mainly divided into two frequency segments, one of which can be called Sub-6 applications below 6 GHz, providing new application frequency bands and new calculation and coding methods. The second is the millimeter wave (Millimeter Wave, mmWave for short) frequency band, which provides huge data flow and higher information response capability. The application below 6GHz is a solution with lower cost and lower threshold for resource investment of existing manufacturers. However, compared with the traditional WWAN (Wireless Wide Area Network), the operating bandwidth required by the antenna is further increased, and the number of antennas or the size of the antenna needs to be increased, so that in terms of new product design, the antenna design New difficult challenges are generated.

In order to solve the foregoing technical problems, embodiments of the present invention provide a A single-slot antenna for fifth-generation mobile communication technology, including a metal sheet, a slot, and a feed wire. The sheet metal is flat. The slot is arranged on the metal sheet, and the slot is elongated. The slot includes a bifurcation, an extension and a branch. The bifurcation extends from the short side of the slot into the inside of the slot to make the slot split Fork, the bifurcation part is connected with the extension part, and the extension part is used to continue to extend the bifurcation part. Both the bifurcation part and the extension part are parallel to the long side of the slot hole. The branch portion extends from the junction of the bifurcation portion and the extension portion toward a direction opposite to the extension portion. The feed-in metal wire is perpendicular to the long side and extends into the slot to connect the feed-in end, so that the feed-in metal wire is perpendicular to the extension. Wherein, besides being used for feeding, the feed-in metal wire is also used to divide the slot hole into a first block and a second block, wherein the feed-in metal wire, the extension part and the fork part divide the slot hole into the first block and the second block. A block, wherein the feed wire, the branch and the fork separate the slots from the second block.

To sum up, the embodiment of the present invention provides a single-slot antenna for the fifth generation mobile communication technology, without specifically increasing the original size of the antenna, a single slot antenna can be used for multi-frequency applications, and at the same time It is suitable for WiFi-2G, WiFi-5G and WiFi 6E specifications, and can be used in the Sub-6 frequency band of the fifth generation mobile communication technology. It has the advantages of simple structure and wide frequency band application, and has high industrial application value.

In order to enable a further understanding of the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but these descriptions and accompanying drawings are only used to illustrate the present invention, not to claim the rights of the present invention any limitations on the scope.

1: metal sheet

2: slot

3: Feed the wire

21: Fork

22: Extension

23: Branch

201: short side

202: long side

24: Feed-in terminal

25: First block

26:Second block

101: First Boundary

102: Second boundary

300: coaxial cable

301: outer conductor

FIG. 1 is a schematic diagram of a single-slot antenna for the fifth generation mobile communication technology provided by an embodiment of the present invention, which does not include a feed wire.

Fig. 2 is a schematic diagram of a single-slot antenna for the fifth generation mobile communication technology provided by an embodiment of the present invention, including a feed-in metal wire.

Fig. 3 is a diagram showing the dimensions of the single-slot antenna used in the fifth generation mobile communication technology provided by the embodiment of the present invention.

FIG. 4 is a schematic diagram of S11 parameters of a dual-port network of a single-slot antenna used in the fifth generation mobile communication technology as the frequency varies according to an embodiment of the present invention.

Fig. 5 is a schematic diagram showing the efficiency of the single-slot antenna used in the fifth generation mobile communication technology as a function of frequency according to an embodiment of the present invention.

Please refer to Fig. 1, Fig. 2 and Fig. 3 together. Fig. 1 is a schematic diagram of a single-slot antenna for the fifth-generation mobile communication technology provided by an embodiment of the present invention, which does not include a feed-in wire, and Fig. 2 is a schematic diagram of the present invention The single-slot antenna for the fifth generation mobile communication technology provided by the embodiment includes a schematic diagram of a feed-in metal wire, and FIG. 3 is the size of the single-slot antenna for the fifth generation mobile communication technology provided by the embodiment of the present invention Marking diagram. This embodiment provides a single-slot antenna for the fifth generation mobile communication technology, which includes a metal sheet 1 , a slot 2 and a feed wire 3 . The feed wire 3 can be seen in FIG. 2 . Metal sheet 1 is planar. The slot 2 is disposed on the metal sheet 1 , and the slot 2 is elongated, such as a substantially elongated rectangular slot. The slot 2 includes 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 inside of the slot 2 so that the slot 2 bifurcates, and the bifurcation The extension part 21 is connected to the extension part 22, and the extension part 22 is used to continue to extend the bifurcation. Both the bifurcation part 21 and the extension part 22 are parallel to the long side 202 of the slot hole 2. The connection of the extension part 22 has a feed-in end 24 , wherein the branch part 23 extends from the connection of the fork part 21 and the extension part 22 in a direction opposite to the direction of the extension part 22 . The feeding wire 3 is perpendicular to the long side 202 and extends into the slot 2 to connect to the feeding end 24 , so that the feeding wire 3 is perpendicular to the extending portion 22 . Wherein, the feeding metal wire 3 is not only used for feeding, but also used to divide the slot 2 into a first block 25 and a second block 26, wherein the feeding metal wire 3, the extension part 22 and the bifurcation part 21 will The slot 2 distinguishes the first block 25 , wherein the feed-in wire 3 , the branch portion 23 and the bifurcation portion 21 define the slot 2 as the second block 26 . The related dimensions of the components of the single slot hole in this embodiment are shown in FIG. 3 , which is only used as an example and not intended to limit the present invention.

In the actual application level 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, and the groove The long side 202 of the hole 2 is parallel to the second boundary 102 , and the slot 2 is close to the first boundary 101 and the second boundary 102 . It can be seen that the single-slot antenna of the present invention is suitable for the surrounding corners of the circuit board of the wireless communication device, or is suitable for being disposed near the edge of the metal casing of the wireless communication device.

Preferably, an exemplary implementation of the feed-in metal wire 3 is as follows, the feed-in metal wire 3 is the central conductor of a coaxial cable 300, wherein the outer conductor 301 of the coaxial cable 300 is connected to the metal sheet 1 for grounding (ground) ), the outer conductor 301 of the coaxial cable is connected to the metal sheet 1 at the long side 202 of the slot 2 .

Preferably, the branch portion 23 connects the junction of the fork 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 part of the branch portion 23 is parallel to the fork portion 21 . Preferably, the first block 25 is roughly U-shaped, and the second block 26 is also roughly U-shaped. In terms of the first block 25, the extension 22 It is used to make the first block 25 generate a U-shape. Regarding the second block 26 , the branch portion 23 is used to make the second block 26 have a U-shape. In this way, in the same use space, the resonance path can be effectively extended. Referring again to FIG. 3 , in terms of preferred practical dimensions of the slot hole 2 , the length of the long side 202 of the slot hole 2 is between 53 millimeters and 57 millimeters, and the size of the short side 201 of the slot hole 2 is 4 millimeters. Wherein the bifurcated portion 21 and the extension portion 22 have a width of 1 mm.

Please refer to FIG. 4 . FIG. 4 is a schematic diagram of S11 parameters of a dual-port network of a single-slot antenna used in the fifth generation mobile communication technology as the frequency varies according to an embodiment of the present invention. As far as the resonance mode of operation is concerned, the first block 25 is used to excite the resonance mode of 2.4GHz, and the first block 25 is also used to excite the resonance mode of 5GHz, which can be used in the frequency bands of WiFi-2G and WiFi-5G . The second block 26 is used to excite the frequency band between 3.3 GHz and 4.2 GHz in the Sub-6 frequency band of the fifth generation mobile communication technology. The branch part 23 is used to excite the resonance mode of the WiFi 6E frequency band, and the WiFi 6E frequency band includes the frequency band from 5.925 GHz to 7.125 GHz. Referring to FIG. 5 , the efficiency of the single-slot antenna of this embodiment has good antenna efficiency for consumer wireless communication products (especially wireless terminal devices) in the aforementioned frequency bands, meeting the needs of the industry.

To sum up, the embodiment of the present invention provides a single-slot antenna for the fifth generation mobile communication technology, without specifically increasing the original size of the antenna, a single slot antenna is used for multi-frequency applications, and is applicable to Based on WiFi-2G, WiFi-5G and WiFi 6E specifications, and can be used in the Sub-6 frequency band of the fifth generation mobile communication technology, it has the advantages of simple structure and wide frequency band application, and has high industrial application value.

The above descriptions are only examples of the present invention, and are not intended to limit the patent scope of the present invention.

1: metal sheet

2: slot

3: Feed the wire

21: Fork

22: Extension

23: Branch

201: short side

202: long side

24: Feed-in terminal

25: First block

26:Second block

101: First Boundary

102: Second boundary

300: coaxial cable

301: outer conductor

Claims (10)

A single-slot antenna for the fifth-generation mobile communication technology, comprising: a metal sheet, which is planar; a slot structure, which is arranged on the metal sheet, and the slot structure is an elongated metal surrounding a slot, The slot structure has a bifurcation, an extension and a branch, the bifurcation extends from a short side of the slot into the interior of the slot so that the slot produces a bifurcation, the bifurcation The fork is connected to the extension, and the extension is used to continue to extend the branch. Both the fork and the extension are parallel to a long side of the slot hole, and the connection between the fork and the extension has a a feed-in end, wherein the branch portion extends from the junction of the bifurcation portion and the extension portion in a direction opposite to the extension portion; and a feed-in wire, the feed-in wire is perpendicular to the long side and extending into the slot to connect the feed-in end, so that the feed-in metal line is perpendicular to the extension; wherein, the feed-in metal line is not only used for feeding in, but also used to divide the slot into a first area block and a second block, wherein the feed wire, the extension and the fork portion separate the slot from the first block, wherein the feed wire, the branch and the fork The slot is divided into the second block. According to the single-slot antenna for fifth-generation mobile communication technology described in item 1 of the claim, the metal sheet has a first boundary and a second boundary, and the first boundary and the second boundary are perpendicular to each other, The short side of the slot is parallel to the first boundary, the long side of the slot is parallel to the second boundary, and the slot is close to the first boundary and the second boundary. According to the single-slot antenna for the fifth generation mobile communication technology according to item 1 of the claim, wherein the first block is used to excite the resonance mode of 2.4GHz. The single-slot antenna for the fifth generation mobile communication technology according to item 1 of the claim line, wherein the first block is used to excite a 5GHz resonant mode. According to the single-slot antenna for fifth-generation mobile communication technology described in item 1 of the claim, the second block is used to stimulate the sub-6 frequency band of the fifth-generation mobile communication technology between 3.3GHz and 4.2GHz frequency band. According to the single-slot antenna for the fifth-generation mobile communication technology described in item 1 of the claim, the branch is used to excite the resonance mode of the WiFi 6E frequency band, and the WiFi 6E frequency band includes the frequency band from 5.925GHz to 7.125GHz . According to the single-slot antenna for fifth-generation mobile communication technology described in item 1 of the claim, wherein the feed-in metal wire is the central conductor of a coaxial cable, wherein the outer conductor of the coaxial cable is connected to the metal sheet For grounding, the outer conductor of the coaxial cable is connected to the metal sheet at the long side of the slot. According to the single-slot antenna for the fifth generation mobile communication technology according to item 1 of the claim, wherein the branch part is connected to the junction of the branch part and the extension part, and the direction of the branch part is opposite to the extension part extending in a direction such that at least a portion of the branch portion is parallel to the bifurcation portion. According to the single-slot antenna for the fifth generation mobile communication technology described in item 1 of the claim, the first block is roughly U-shaped, and the second block is also roughly U-shaped. According to the single-slot antenna for fifth-generation mobile communication technology described in item 1 of the claim, the length of the long side of the slot is between 53 mm and 57 mm, and the short side of the slot is The dimension of the side is 4 mm, wherein the width of the bifurcation and the extension is 1 mm.

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