Dual antenna module for fifth generation mobile communication technology

Abstract

The present invention discloses a dual antenna module, including a substrate, a first antenna and a second antenna. The first antenna has a first feeding end, a first radiator, a second radiator and a first coupling radiator, the first feeding end connects the first radiator and the second radiator, the first radiator is U-shaped, the first part and the second radiator extend in opposite directions, and the second end of the second radiator is close to the first end of the second part. The first coupling radiator has a first grounding part, a first connecting part and a first coupling part, and the first coupling part is close to the first end and the second end to couple energy. The second antenna has a second feeding end, a third radiator and a second coupling radiator, the second coupling radiator has a second grounding part, a second connecting part and a second coupling part, the second connecting part is connected between the second grounding part and the second coupling part, and the second coupling part is close to the third end of the third radiator to couple energy. In this way, multi-frequency operation of the fifth generation mobile communication technology is achieved.

Description

Technical Field

[0001] The invention relates to an antenna, in particular to a dual-antenna module used in fifth-generation mobile communication technology. Background Art

[0002] Laptops are becoming increasingly powerful, and they still have the advantages of convenient data processing and irreplaceable performance compared to smartphones. Since current smartphones can already use higher wireless transmission rates (4G and 5G), laptops also need to have a wider range of wireless transmission performance.

[0003] Common wireless communication technologies for existing mobile devices are included in the categories of wireless local area network (WLAN) and wireless wide area network (WWAN). Wireless local area network is a necessary wireless specification for existing laptops, and wireless wide area network includes 2G, 3G, 4G LTE and 5G. When laptop brands use 5G performance specifications, the antenna operating bandwidth is further increased.

[0004] However, existing designs that do not include the 5G sub-6 frequency band already have very strict isolation requirements when the antenna module needs to be used for multiple-input multiple-output (MIMO), and this creates great design difficulties for built-in antennas. If the 5G sub-6 frequency band is added, it will be a severe challenge to increase the bandwidth and maintain the isolation requirements while maintaining the same antenna size restrictions. Summary of the invention

[0005] In view of the above-mentioned defects in the prior art, the task of the present invention is to provide a dual-antenna module for the fifth-generation mobile communication technology, so as to further improve the efficiency of disassembly and replacement of graphite boat card points.

[0006] The technical solution of the present invention is as follows: A dual antenna module for fifth generation mobile communication technology, characterized in that it includes:

[0007] substrate;

[0008] a first antenna, disposed on the substrate, having a first feeding end, a first radiator, a second radiator and a first coupling radiator, wherein the first feeding end connects the first radiator and the second radiator, the first radiator has a first portion and a second portion, the first portion and the second portion are connected to each other to bend to form a U-shape; wherein the first portion and the second radiator extend in opposite directions, the second portion has a first end, the second radiator has a second end, and the second end of the second radiator is close to the first end; wherein the first coupling radiator has a first grounding portion, a first connecting portion and a first coupling portion, the first connecting portion is connected between the first grounding portion and the first coupling portion, and the first coupling portion is close to the first end and the second end to couple energy; and

[0009] The second antenna is arranged on the substrate, and has a second feeding end, a third radiator and a second coupling radiator, the second feeding end is connected to the third radiator, the second coupling radiator has a second grounding portion, a second connecting portion and a second coupling portion, the second connecting portion is connected between the second grounding portion and the second coupling portion, and the second coupling portion is close to the third end of the third radiator to couple energy.

[0010] Furthermore, the dual antenna module includes a first coaxial cable and a second coaxial cable, the center conductor of the first coaxial cable is connected to the first feeding end, the outer conductor of the first coaxial cable is connected to the first grounding portion, the center conductor of the second coaxial cable is connected to the second feeding end, and the outer conductor of the second coaxial cable is connected to the second grounding portion.

[0011] Further, the first feeding end is located between the first grounding portion and the second grounding portion, and the second grounding portion is located between the first feeding end and the second feeding end.

[0012] Furthermore, the first coupled radiator operates in a first low-frequency band, the first radiator operates in a second low-frequency band, and the frequency of the second low-frequency band is higher than that of the first low-frequency band.

[0013] Furthermore, the second radiator operates in a first high frequency band and a second high frequency band, and the second high frequency band is a high-order resonance frequency of the first high frequency band.

[0014] Furthermore, the U-shape of the first radiator enables the first radiator to operate in a third high frequency band, and the frequency of the third high frequency band is higher than that of the second high frequency band.

[0015] Furthermore, the first low frequency band and the second low frequency band together cover a frequency range of 699 MHz to 960 MHz.

[0016] Furthermore, the first high frequency band covers a frequency range from 1710 MHz to 1990 MHz.

[0017] Furthermore, the operating frequency of the second antenna covers a frequency range of 1710 MHz to 4700 MHz.

[0018] Furthermore, the third high frequency band covers a frequency range of 5100 MHz-5900 MHz.

[0019] The advantages of the present invention compared with the prior art are:

[0020] The antenna module of the present invention has more available frequency bands than traditional antennas, and only needs to use dual antennas to simultaneously meet the specifications of wireless local area networks, wireless wide area networks and their multiple-input and multiple-output functions. It can also be applied to the 5G sub-6 frequency band of the fifth-generation mobile communication technology, thereby achieving the effect of reducing the number of antennas and reducing the space occupied by antennas, and has high industrial application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a dual antenna module for fifth-generation mobile communication technology provided by an embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of a front-view of a dual-antenna module for fifth-generation mobile communication technology provided by an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of a rear view of a dual antenna module for fifth generation mobile communication technology provided by an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram from a top perspective of a dual antenna module for fifth-generation mobile communication technology provided by an embodiment of the present invention.

[0025] Figure 5 It is a schematic diagram from a bottom perspective of a dual antenna module for fifth-generation mobile communication technology provided by an embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of a dual antenna module for fifth generation mobile communication technology provided by an embodiment of the present invention being fed by two coaxial cables.

[0027] Figure 7 4 is a SWR diagram of the first antenna provided in an embodiment of the present invention.

[0028] Figure 8 This is a SWR diagram of the second antenna provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the embodiments, but are not intended to limit the present invention.

[0030] For example, please refer to Figures 1 to 5 , this embodiment provides a dual antenna module for the fifth generation mobile communication technology, including a substrate 10, a first antenna 1 and a second antenna 2. The shape of the substrate 10 in the figure is suitable for illustration, for example, its shape is used to match the design of the assembled structural parts, but it is not limited to this. The dual antenna module is realized by a laser engraving process, for example, but it is not limited to this. The first antenna 1 is arranged on the substrate 10, and has a first feeding end 101, a first radiator 11, a second radiator 12 and a first coupling radiator 13. The first feeding end 101 connects the first radiator 11 and the second radiator 12. The first radiator 11 has a first portion 111 and a second portion 112. The first portion 111 and the second portion 112 are connected to each other to bend to form a U-shape. Among them, the first portion 111 and the second radiator 12 extend in opposite directions, the second portion 112 has a first end 112a, the second radiator 12 has a second end 12a, and the second end 12a of the second radiator 12 is close to the first end 112a. The first feeding end 101, the first radiator 11 and the second radiator 12 can be seen at Figure 2 Front view and Figure 1 From the three-dimensional diagram of FIG. 1 , it can be seen that the first feeding end 101, the first radiator 11, and the second radiator 12 can be basically located on the same plane (front side) of the substrate 10, but the present invention is not limited thereto.

[0031] Reference Figures 1 to 5 The first coupled radiator 13 has a first grounding portion 131, a first connecting portion 132 and a first coupling portion 133. The first connecting portion 132 is connected between the first grounding portion 131 and the first coupling portion 133. The first coupling portion 133 is close to the first end 112a and the second end 12a to couple energy. In detail, the first coupled radiator is composed of Figure 5 The first grounding portion 131 starts from the lower viewing angle and extends to Figure 3 The first coupling portion 133 further extends to the rear viewing angle (first connecting portion 132, first coupling portion 133). Figure 4 The upper perspective, so that Figure 1 It can be seen that the first coupling portions 13 are distributed on four surfaces of the substrate 10 to form a longer extension path and obtain the energy fed by the radio frequency signal in a coupling manner.

[0032] The second antenna 2 is disposed on the substrate 10, and has a second feeding end 201, a third radiator 21 and a second coupling radiator 22. The second feeding end 201 is connected to the third radiator 21. The second coupling radiator 22 has a second grounding portion 221, a second connecting portion 222 and a second coupling portion 223. The second connecting portion 222 is connected between the second grounding portion 221 and the second coupling portion 223. The second coupling portion 223 is close to the third end 21a of the third radiator 21 to couple energy. Except for the feeding and grounding parts, most of the second antenna 2 of this embodiment is located on the same surface (front side) of the substrate 10. The main part of the second feeding end 201 and the second grounding portion 221 are located on another surface (see FIG. 2 ). Figure 5 However, this is only for example and the present invention is not limited thereto.

[0033] Further, refer to Figure 6 The dual antenna module further includes a first coaxial cable 3 and a second coaxial cable 4. The center conductor 31 of the first coaxial cable 3 is connected to the first feeding end 101, and the outer conductor 32 of the first coaxial cable 3 is connected to the first grounding portion 131. In other words, in fact, the first radiator 12 and the second radiator 13 are fed by the center conductor 31 of the first coaxial cable 3, and the first coupled radiator 13 is grounded by the outer conductor 32 of the first coaxial cable 3.

[0034] In addition, the central conductor 41 of the second coaxial cable 4 is connected to the second feeding end 201, and the outer conductor 42 of the second coaxial cable 4 is connected to the second grounding portion 221. In other words, the third radiator 21 is fed by the central conductor 41 of the second coaxial cable 4, and the second coupled radiator 22 is grounded by the outer conductor 42 of the second coaxial cable 4.

[0035] Preferably, the first feeding end 101 is located between the first grounding portion 131 and the second grounding portion 221, and the second grounding portion 221 is located between the first feeding end 101 and the second feeding end 201. In terms of physical structure, the first feeding end 101, the first grounding portion 131, the second grounding portion 221 and the second feeding end 201 can be distributed on the bottom surface of the substrate 10, such as Figure 5 and Figure 6 As shown, but not limited to.

[0036] Based on the multiple frequency bands required for 5G sub-6 bands as well as traditional wireless wide area networks (WWAN) and wireless local area networks (WLAN). Figure 7Preferably, the first coupled radiator 13 works in the first low frequency band LB1, and the first radiator 11 works in the second low frequency band LB2, and the frequency of the second low frequency band LB2 is higher than the first low frequency band LB1. The above-mentioned first low frequency band LB1 and second low frequency band LB2 together cover the frequency range of 699MHz to 960MHz. The second radiator 13 works in the first high frequency band HB1 and the second high frequency band HB2, and the second high frequency band HB2 is the high-order resonant frequency of the first high frequency band HB1. The first high frequency band HB1 covers the frequency range of 1710MHz to 1990MHz. The frequency range of the second high frequency band HB2 falls between 1990MHz and 2690MHz. The U-shape of the first radiator 11 enables the first radiator 12 to work in the third high frequency band HB3, and the frequency of the third high frequency band HB3 is higher than the second high frequency band HB2. The third high frequency band HB3 covers the frequency range of 5100MHz-5900MHz. Furthermore, in addition to the above basic working modes, the frequency range of 3300MHz-4900MHz required for the first antenna 1 to work is supported by other high-order modes of the first radiator 11, the second radiator 12 and the first coupled radiator 13. In particular, the impedance matching for this frequency range is adjusted by the coupling between the first portion 111 of the first radiator 11 and the adjacent portion of the first coupled radiator 13. The above multi-path coupling can provide a larger operating bandwidth and better impedance matching, thereby improving radiation efficiency.

[0037] In addition, refer to Figure 8 , the operating frequency of the second antenna 2 covers the frequency range of 1710MHz to 4700MHz. The fundamental mode and the high-order mode of the third radiator 21 and the second coupled radiator 22 are sufficient to cover the above frequency range. For example, in this way, the first antenna 1 and the second antenna 2 can be applied to at least the transmission requirements of 802.11n and 802.11ax specifications when working in multiple-input multiple-output (MIMO).

[0038] Furthermore, in terms of antenna efficiency, the antenna efficiency is -6.5dB or better at the operating frequency of 699MHz-960MHz, -5dB or better at 1700MHz-2690MHz, -8dB or better at 3400MHz-4700MHz, and -6dB or better at 5150MHz-5925MHz. Furthermore, the dual antenna operation of this dual antenna module complies with the SAR specifications for multi-input and multi-output work in existing WWAN, WLAN and 5G sub-6 bands. In particular, compared to traditional designs, the space occupied by this antenna design is less than 100.66mm*7mm*3.5mm in length*width*height, which is a very competitive design. According to the prior art, traditional antennas cannot simultaneously achieve the above effects of the present invention under the same size restrictions.

[0039] In summary, the dual antenna module for the fifth generation mobile communication technology provided in the embodiment of the present invention has more available frequency bands than traditional antennas, and only needs to use dual antennas to simultaneously meet the specifications of wireless local area networks, wireless wide area networks and their multiple-input and multiple-output functions. It can also be applied to the 5G sub-6 frequency band of the fifth generation mobile communication technology, thereby achieving the effect of reducing the number of antennas and reducing the space occupied by antennas, and has high industrial application value.

Claims

1. A dual antenna module for fifth generation mobile communication technology, It is characterized in that include: substrate; a first antenna, disposed on the substrate, having a first feeding end, a first radiator, a second radiator and a first coupling radiator, wherein the first feeding end connects the first radiator and the second radiator, the first radiator has a first portion and a second portion, the first portion and the second portion are connected to each other to bend to form a U-shape; wherein the first portion and the second radiator extend in opposite directions, the second portion has a first end, the second radiator has a second end, and the second end of the second radiator is close to the first end; wherein the first coupling radiator has a first grounding portion, a first connecting portion and a first coupling portion, the first connecting portion is connected between the first grounding portion and the first coupling portion, and the first coupling portion is close to the first end and the second end to couple energy; and The second antenna is arranged on the substrate, and has a second feeding end, a third radiator and a second coupling radiator, the second feeding end is connected to the third radiator, the second coupling radiator has a second grounding portion, a second connecting portion and a second coupling portion, the second connecting portion is connected between the second grounding portion and the second coupling portion, and the second coupling portion is close to the third end of the third radiator to couple energy.

2. The dual antenna module for fifth generation mobile communication technology according to claim 1, It is characterized in that The dual antenna module includes a first coaxial cable and a second coaxial cable, the center conductor of the first coaxial cable is connected to the first feeding end, the outer conductor of the first coaxial cable is connected to the first grounding portion, the center conductor of the second coaxial cable is connected to the second feeding end, and the outer conductor of the second coaxial cable is connected to the second grounding portion.

3. The dual antenna module for fifth generation mobile communication technology according to claim 1, It is characterized in that The first feeding end is located between the first grounding portion and the second grounding portion, and the second grounding portion is located between the first feeding end and the second feeding end.

4. The dual antenna module for fifth generation mobile communication technology according to claim 1, It is characterized in that The first coupled radiator operates in a first low-frequency band, and the first radiator operates in a second low-frequency band, and the frequency of the second low-frequency band is higher than that of the first low-frequency band.

5. The dual antenna module for fifth generation mobile communication technology according to claim 4, It is characterized in that The second radiator operates in a first high frequency band and a second high frequency band, and the second high frequency band is a high-order resonance frequency of the first high frequency band.

6. The dual antenna module for fifth generation mobile communication technology according to claim 5, It is characterized in that The U-shape of the first radiator enables the first radiator to operate in a third high frequency band, and the frequency of the third high frequency band is higher than that of the second high frequency band.

7. The dual antenna module for fifth generation mobile communication technology according to claim 4, It is characterized in that The first low frequency band and the second low frequency band together cover a frequency range of 699 MHz to 960 MHz.

8. The dual antenna module for fifth generation mobile communication technology according to claim 5, It is characterized in that The first high frequency band covers a frequency range of 1710 MHz to 1990 MHz.

9. The dual antenna module for fifth generation mobile communication technology according to claim 1, It is characterized in that The operating frequency of the second antenna covers a frequency range of 1710 MHz to 4700 MHz.

10. The dual antenna module for fifth generation mobile communication technology according to claim 6, It is characterized in that The third high frequency band covers a frequency range of 5100 MHz-5900 MHz.

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