CN211605404U - 5G dual-frequency quaternary MIMO antenna - Google Patents
5G dual-frequency quaternary MIMO antenna Download PDFInfo
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- CN211605404U CN211605404U CN202020414421.XU CN202020414421U CN211605404U CN 211605404 U CN211605404 U CN 211605404U CN 202020414421 U CN202020414421 U CN 202020414421U CN 211605404 U CN211605404 U CN 211605404U
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- 230000005404 monopole Effects 0.000 claims abstract description 38
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 claims description 14
- 230000010287 polarization Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model relates to the field of communication, a quaternary MIMO antenna of 5G dual-frenquency is disclosed for improve the input and the output strength of 5G signal. A 5G dual-frequency quaternary MIMO antenna comprising: a dielectric plate; the four double-frequency monopole radiating units with the same structure are arranged on the dielectric plate and are used for generating 5G low-frequency signals and high-frequency signals; and the four isolation branches are arranged on the dielectric plate and positioned between the dual-frequency monopole radiating units and used for decoupling the dual-frequency monopole radiating units, wherein the four dual-frequency monopole radiating units feed electricity in an asymmetric coplanar band feeding mode. The utility model provides a pair of quaternary MIMO antenna of 5G dual-frenquency not only can keep the influence each other not between the antenna, but also can use at miniaturized mobile terminal equipment.
Description
Technical Field
The embodiment of the utility model provides a relate to the communication field, especially relate to a 5G dual-frenquency quaternary MIMO antenna.
Background
Currently, MIMO technology is gaining wide attention with its unique advantages. The technology uses a plurality of antennas at the transmitting end and the receiving end of the system respectively, makes full use of space resources to enable signals to be transmitted and received by a plurality of antennas, greatly improves the channel capacity on the premise of not increasing additional transmitting power and spectrum resources, and can greatly improve the wireless communication quality. There are certain difficulties in obtaining higher channel capacity by using MIMO technology, and the biggest difficulty is in the design of multiple antennas. Two parameters of the antenna elements and the number of the antenna elements are considered in an important mode, and when a large number of antennas are placed at a base station end of mobile communication, the practical application of the antennas cannot be influenced due to the small limitation of the volume factor of equipment. However, for miniaturized mobile terminal devices, it is a difficult problem to put multiple antennas and keep the performance of the antennas good, so two major difficulties in the design process of the mobile terminal antennas are the antenna element spacing and the number.
With the widespread application of MIMO technology, many methods capable of improving isolation, such as polarization diversity technology, neutral line technology, floor stubs, parasitic elements, decoupling networks, defected ground structures, and metamaterial technology, have been studied in large quantities, but the application of antennas to miniaturized mobile terminal devices has not been possible.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a four-component MIMO antenna of 5G dual-frenquency not only can keep the influence each other not between the antenna, but also can use at miniaturized mobile terminal equipment.
The embodiment of the utility model provides a quaternary MIMO antenna of 5G dual-frenquency for improve the input and the output strength of 5G signal. A5G dual-frequency quaternary MIMO antenna comprises a dielectric plate; the four double-frequency monopole radiating units with the same structure are arranged on the dielectric plate and are used for generating 5G low-frequency signals and high-frequency signals; and the four isolation branches are arranged on the dielectric plate and positioned between the dual-frequency monopole radiating units and used for decoupling the dual-frequency monopole radiating units, wherein the four dual-frequency monopole radiating units feed electricity in an asymmetric coplanar band feeding mode.
The utility model provides an in the quaternary MIMO antenna of 5G dual-frenquency, can also have such characteristic: the polarization directions of the adjacent double-frequency monopole radiation units are mutually vertical.
The utility model provides an in the quaternary MIMO antenna of 5G dual-frenquency, can also have such characteristic: wherein, the four dual-frequency monopole radiation units are F-shaped monopole antennas.
The utility model provides an in the quaternary MIMO antenna of 5G dual-frenquency, can also have such characteristic: the dielectric slab is square in shape, the size of the dielectric slab is 60mm-70mm, and the four isolation branch sections are located on the diagonal line of the dielectric slab.
The utility model provides an in the quaternary MIMO antenna of 5G dual-frenquency, can also have such characteristic: the medium plate is an FR4 substrate.
The utility model provides an in the quaternary MIMO antenna of 5G dual-frenquency, can also have such characteristic: wherein, the outer ends of the four isolated branches are Y-shaped.
Action and effect of the utility model
According to the utility model provides a pair of quaternary MIMO antenna of 5G dual-frenquency, because have the dielectric plate, four F type dual-frenquency monopole radiating element that the structure is identical and four keep apart the minor matters, wherein install the dual-frenquency monopole radiating element on the dielectric plate and can be used for producing 5G's dual-frequency signal, four dual-frenquency monopole radiating element all feeds through asymmetric coplanar waveguide feed mode, it can carry out the decoupling zero to keep apart the minor matters between the dual-frenquency monopole radiating element, so can make not the interact between the antenna, and can use at miniaturized mobile terminal equipment.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a 5G dual-frequency quaternary MIMO antenna in an embodiment of the present invention;
fig. 2 is a schematic simulation diagram of a 5G dual-frequency quaternary MIMO antenna in an embodiment of the present invention; and
fig. 3 is a schematic diagram of isolation simulation of a 5G dual-frequency quaternary MIMO antenna according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the present invention is specifically described below with reference to the embodiments and the accompanying drawings.
< example >
Fig. 1 is a schematic diagram of an overall structure of a 5G dual-frequency quaternary MIMO antenna in an embodiment of the present invention.
As shown in fig. 1, the 5G dual-frequency quaternary MIMO antenna 100 provided in this embodiment includes: the antenna comprises a dielectric plate 1, four dual-frequency monopole radiating elements 2 and 3 and an isolation branch 4.
The dielectric board 1 is an FR4 substrate, and has a square shape with a side length of 68 mm.
The four dual-frequency monopole radiating elements 2 and 3 are F-type monopole antennas, and are mounted on the dielectric plate 1 by welding. The adjacent dual-frequency monopole units are perpendicular to each other, so that the polarization directions are orthogonal to each other.
By the installation mode, the dual-frequency monopole radiating elements 2 and 3 adopt an asymmetric coplanar feeding (ACS) mode to feed power, and the polarization directions are perpendicular.
Keep apart branch knot 4 and include four median, the head end of four median is connected, and the tail end is close to 1 edge of dielectric plate, and the tail end that is close to 1 edge of dielectric plate is the Y type. The isolation branches 4 are installed on the dielectric plate 1 in a welding mode, and the length directions of the isolation branches 4 are overlapped with the direction of the diagonal line of the dielectric plate 1 and are located among the four double-frequency monopole radiation units.
By adjusting the size and the placement position of the isolation branch 4, particularly the total length of the branch, the isolation of the antenna in the working frequency band can be effectively improved. Therefore, the size of the isolated branches 4 is not limited in this embodiment.
The 5G dual-frequency quad MIMO antenna processes the 5G low and high frequency signals by using 1/4 wavelength radiation of the dual-frequency monopole radiating elements 2 and 3. The polarization directions of the adjacent double-frequency monopole radiation units are orthogonal, so that the decoupling between the double-frequency monopole radiation units is realized. However, the practical use requirement cannot be met only by adopting vertical placement, so that Y-shaped isolation branches are added among the four double-frequency monopole radiation units on the basis. On one hand, the impedance matching of the antenna unit can be improved, and the frequency band can be widened; on the other hand, the space radiation wave can be coupled to the Y-shaped branches, so that the influence of the space radiation wave on the antenna units is reduced, and the influence among the antenna units is greatly reduced.
Fig. 2 is a simulation diagram of a 5G dual-frequency quaternary MIMO antenna according to an embodiment of the present invention.
From the view of FIG. 2, the required working frequency band of 5G is 3.3-3.6GHz, S11< -10Db within 4.9-5.0GHz, has good impedance matching, and generates obvious resonance especially near 3.45 GHz. In addition, at high frequency, the frequency range satisfied by S11< -10DB is far greater than the frequency range (5-6GHz) required by 5G, and the high-frequency operating frequency band of WiMAX/WLAN can be covered, so the method has wider utilization value.
Fig. 3 is a schematic diagram of isolation simulation of a 5G dual-frequency quaternary MIMO antenna according to an embodiment of the present invention.
In FIG. 3, the isolation is below-20 DB in the range of 2-6GHz, so that the requirement of high isolation is realized, and the requirement of practical engineering is met. The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Effects and effects of the embodiments
According to the utility model provides a pair of quaternary MIMO antenna of 5G dual-frenquency, because have the dielectric plate, four F type dual-frenquency monopole radiating element that the structure is identical and four keep apart the minor matters, wherein install the dual-frenquency monopole radiating element on the dielectric plate and can be used for producing 5G's dual-frequency signal, four dual-frenquency monopole radiating element all feeds through asymmetric coplanar waveguide feed mode, it can carry out the decoupling zero to keep apart the minor matters between the dual-frenquency monopole radiating element, so can make not the interact between the antenna, and can use at miniaturized mobile terminal equipment.
According to the 5G dual-frequency quaternary MIMO antenna provided by the embodiment, because the asymmetric coplanar band feeding mode is adopted for feeding, the serial connection or the parallel connection with other microwave devices can be realized without drilling holes on the substrate, and further, the miniaturization of a circuit and the integrity of signals can be realized; moreover, the radiation loss of the CPW is relatively small, and the polarization purity and the working efficiency of the antenna can be improved.
Furthermore, because the polarization directions of the adjacent dual-frequency monopole radiating units are perpendicular to each other, the adjacent dual-frequency monopole radiating units can be decoupled, so that the impedance matching of the antenna unit is improved, the frequency band is widened, and the influence of the space radiation waves on the antenna unit is reduced.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (6)
1. A5G dual-frequency quaternary MIMO antenna for improving the input and output strength of 5G signals, comprising:
a dielectric plate;
the four double-frequency monopole radiating units with the same structure are arranged on the dielectric plate and are used for generating the 5G low-frequency signal and the 5G high-frequency signal; and
four isolation branches mounted on the dielectric plate and located between the dual-frequency monopole radiation units, wherein the isolation branches are used for decoupling the dual-frequency monopole radiation units,
and the four dual-frequency monopole radiating elements feed power in an asymmetric coplanar band feeding mode.
2. The 5G dual-frequency quaternary MIMO antenna of claim 1, wherein:
and the polarization directions of the adjacent dual-frequency monopole radiation units are mutually vertical.
3. The 5G dual-frequency quaternary MIMO antenna of claim 1, wherein:
the four dual-frequency monopole radiating units are F-shaped monopole antennas.
4. The 5G dual-frequency quaternary MIMO antenna of claim 1, wherein:
the dielectric slab is square in shape, the side length of the dielectric slab is 60-70 mm, and the four isolation branch nodes are located on the diagonal line of the dielectric slab.
5. The 5G dual-frequency quaternary MIMO antenna of claim 1, wherein:
wherein the medium plate is an FR4 substrate.
6. The 5G dual-frequency quaternary MIMO antenna of claim 1, wherein:
the outer ends of the four isolation branch knots are Y-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020414421.XU CN211605404U (en) | 2020-03-27 | 2020-03-27 | 5G dual-frequency quaternary MIMO antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020414421.XU CN211605404U (en) | 2020-03-27 | 2020-03-27 | 5G dual-frequency quaternary MIMO antenna |
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| CN211605404U true CN211605404U (en) | 2020-09-29 |
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| CN202020414421.XU Expired - Fee Related CN211605404U (en) | 2020-03-27 | 2020-03-27 | 5G dual-frequency quaternary MIMO antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293435A (en) * | 2020-03-27 | 2020-06-16 | 上海电力大学 | 5G dual-frequency quaternary MIMO antenna |
| CN114696081A (en) * | 2022-04-08 | 2022-07-01 | 苏州迈斯维通信技术有限公司 | Multi-order resonance high-isolation bandwidth cavity array antenna system and antenna unit |
-
2020
- 2020-03-27 CN CN202020414421.XU patent/CN211605404U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293435A (en) * | 2020-03-27 | 2020-06-16 | 上海电力大学 | 5G dual-frequency quaternary MIMO antenna |
| CN114696081A (en) * | 2022-04-08 | 2022-07-01 | 苏州迈斯维通信技术有限公司 | Multi-order resonance high-isolation bandwidth cavity array antenna system and antenna unit |
| CN114696081B (en) * | 2022-04-08 | 2023-10-10 | 苏州迈斯维通信技术有限公司 | Multi-order resonant high-isolation broadband cavity array antenna system |
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