CN217035997U - High-isolation antenna array based on 5G millimeter wave base station - Google Patents
High-isolation antenna array based on 5G millimeter wave base station Download PDFInfo
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- CN217035997U CN217035997U CN202220423494.4U CN202220423494U CN217035997U CN 217035997 U CN217035997 U CN 217035997U CN 202220423494 U CN202220423494 U CN 202220423494U CN 217035997 U CN217035997 U CN 217035997U
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Abstract
The utility model discloses a high-isolation antenna array based on a 5G millimeter wave base station, and particularly relates to a high-isolation antenna array based on a 5G millimeter wave base station, which comprises a metal base plate, an antenna cover, a transmitting array and a receiving array, wherein the transmitting array and the receiving array are arranged on the antenna cover, at least two rows of the transmitting array and the receiving array are arranged on the metal base plate, a linear isolation groove is formed in the upper end of the metal base plate, a plurality of radiation units are arranged at the upper ends of the transmitting array and the receiving array at equal intervals, a first U-shaped isolation groove and a second U-shaped isolation groove are further formed in the transmitting array and the receiving array, and metal isolation strips with the number equal to that of the linear isolation grooves are fixedly arranged between the two vertical plates. According to the high-isolation antenna array based on the 5G millimeter wave base station, the first U-shaped isolation groove and the second U-shaped isolation groove are added, and the linear isolation grooves, the metal isolation bars and the support bars are arranged, so that the radiation channels of all radiation units are consistent, and the purpose of optimizing the overall isolation of the antenna array is achieved.
Description
Technical Field
The utility model relates to the technical field of millimeter wave antennas, in particular to a high-isolation antenna array based on a 5G millimeter wave base station.
Background
The millimeter wave is electromagnetic wave with the wavelength of 1 mm-10 mm, and has the characteristics of both microwave and infrared wave because the frequency range is between the microwave and the infrared wave. The millimeter wave also has its unique characteristics: the whole bandwidth is large, and the current situation that microwave wave bands are crowded can be relieved; compared with microwaves, the working wavelength of the millimeter waves is short, so that the size of the antenna is smaller; compared with infrared waves, millimeter waves have stronger penetrability and can work in more complex environments.
With the rapid development of communication and electronic technologies, various antennas have been widely applied to terminal devices such as smart phones, navigation, wireless routing, and the like, a transmitting end maps data signals to be transmitted to a plurality of antennas through space-time mapping and transmits the data signals, and a receiving end performs space-time decoding on the signals received by each antenna to recover the signals transmitted by the transmitting end.
Antenna isolation characterizes the strength of the energy coupling between two antennas. The antenna is a reciprocal structure, namely, one antenna can be used as a transmitting antenna or a receiving antenna, and the performance parameters of the antenna are not changed. Antennas in an antenna array are generally common-frequency antennas, wherein when one antenna unit has energy radiation, other antenna units are easy to generate corresponding resonance, and thus, the isolation of each unit in the antenna array is deteriorated. The antenna unit isolation difference can cause the directional diagrams of all antenna units in the antenna array to be distorted, and the synthesized directional diagrams of the antenna array are also poorer; the second problem is that the phase consistency among the antenna units is poor, so the utility model provides a high-isolation antenna array based on a 5G millimeter wave base station.
Disclosure of Invention
The utility model mainly aims to provide a high-isolation antenna array based on a 5G millimeter wave base station, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a high isolation antenna array based on a 5G millimeter wave base station comprises a metal base plate, an antenna housing, a transmitting array and a receiving array, wherein the transmitting array and the receiving array are arranged on the antenna housing, at least two rows of transmitting arrays and two rows of receiving arrays are arranged on the transmitting array and the receiving array in sequence in a staggered manner, a linear isolation groove is formed in the upper end of the metal base plate and is arranged between every two adjacent transmitting arrays and receiving arrays, the transmitting arrays and the receiving arrays adopt the same radiation linear array, a plurality of radiation units are arranged on the upper ends of the transmitting arrays and the receiving arrays at equal intervals, first U-shaped isolation grooves and second U-shaped isolation grooves are further formed in the transmitting arrays and the receiving arrays, each adjacent first U-shaped isolation groove and one second U-shaped isolation groove form a group, and a plurality of isolation groups are arranged between any two adjacent radiation units on the same radiation linear array, the equal fixed mounting in up end both sides of metal soleplate has rather than integrated into one piece's vertical board, two common fixed mounting has the metal parting strip that equals with the quantity of linear type isolation groove between the vertical board, every two support bars of the equal equidistance symmetry fixedly connected with in both sides of metal parting strip, the one end that the metal parting strip was kept away from to the support bar all with metal soleplate fixed connection.
Preferably, the first U-shaped isolation slot includes a first isolation portion and first extension portions distributed at two ends of the first isolation portion and perpendicular to the first isolation portion, the first extension portions are communicated with the first isolation portion, the radiation unit is located between the two first extension portions, and the first U-shaped isolation slot is located outside a rectangular cavity formed between the two first extension portions and the first isolation portion,
preferably, the second U-shaped isolation groove includes a second isolation portion and second extension portions that are distributed at two ends of the second isolation portion and perpendicular to the second isolation portion, and the second extension portions are communicated with the second isolation portion, the radiation unit is located between the two second extension portions, and the radiation unit is located outside a rectangular cavity formed between the two second extension portions and the second isolation portion.
Preferably, the first U-shaped isolation groove and the second U-shaped isolation groove between any two adjacent radiation units are axisymmetrical with respect to an axis between the two radiation units.
Preferably, the linear isolation groove is arranged on an axis between two adjacent transmitting arrays and receiving arrays, and the metal isolation strip is located right above the metal isolation strip.
Preferably, the supporting strips and the metal isolating strips on the two sides of the metal isolating strip are integrally formed, the included angle between the supporting strips on the two sides and the vertical direction is a, and a is more than or equal to 30 degrees and less than or equal to 60 degrees.
Preferably, the depth of the first U-shaped isolation groove and the depth of the second U-shaped isolation groove are 2-3mm, and the depth of the linear isolation groove is consistent with the depth of the first U-shaped isolation groove and the depth of the second U-shaped isolation groove.
Preferably, the cross sections of the metal isolating bars and the supporting bars are both circular or rectangular.
Compared with the prior art, the utility model has the following beneficial effects:
according to the antenna array, the isolation between two adjacent transmitting arrays and the isolation between two adjacent receiving arrays can be effectively optimized by adding the first U-shaped isolation groove and the second U-shaped isolation groove, the isolation between two adjacent radiating units can be effectively optimized by arranging the linear isolation groove, the metal isolation strip and the support strip, and in the whole antenna array, the plurality of first U-shaped isolation grooves, the plurality of second U-shaped isolation grooves, the linear isolation groove and the metal isolation strip are uniformly distributed, so that the radiation channels of all the radiating units are consistent, and the purpose of optimizing the overall isolation of the antenna array is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of a metal base plate of the present invention;
FIG. 3 is an enlarged view of the structure at A in the metal base plate of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2 at B in accordance with the present invention;
fig. 5 is a schematic view of the connection between the support bars and the metal spacer bars of the present invention.
In the figure: 1. a metal base plate; 2. an antenna cover; 3. transmitting an array; 4. receiving an array; 5. a linear type isolation groove; 6. a metal spacer bar; 7. a radiation unit; 8. a supporting strip; 9. a first U-shaped isolation groove; 91. a first isolation section; 92. a first extension portion; 10. a second U-shaped isolation groove; 101. a second isolation portion; 102. a second extension portion; 11. a vertical plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained by combining the specific embodiments.
As shown in fig. 1-5, a high-isolation antenna array based on a 5G millimeter wave base station comprises a metal base plate 1, an antenna housing 2, and a transmitting array 3 and a receiving array 4 which are arranged on the antenna housing 2, wherein the transmitting array 3 and the receiving array 4 are both provided with at least two rows, the transmitting array 3 and the receiving array 4 are sequentially distributed in a staggered manner, a linear isolation groove 5 is formed in the upper end of the metal base plate 1, the linear isolation groove 5 is arranged between every two adjacent transmitting arrays 3 and receiving arrays 4, the transmitting arrays 3 and the receiving arrays 4 both adopt the same radiating linear array, a plurality of radiating units 7 are equidistantly arranged on the upper ends of the transmitting arrays 3 and the receiving arrays 4, first U-shaped isolation grooves 9 and second U-shaped isolation grooves 10 are further formed in the transmitting arrays 3 and the receiving arrays 4, each adjacent first U-shaped isolation groove 9 and second U-shaped isolation groove 10 form an isolation group, and the isolation groups are located between any two adjacent radiating units 7 on the same radiating linear array, equal fixed mounting in up end both sides of metal soleplate 1 has rather than integrated into one piece's vertical board 11, and common fixed mounting has the metal parting bead 6 that equals with the quantity of linear type isolation groove 5 between two vertical boards 11, and the impartial apart from symmetrical two support bars 8 of symmetry fixedly connected with in both sides of every metal parting bead 6, the one end that metal parting bead 6 was kept away from to support bar 8 all with 1 fixed connection of metal soleplate.
As shown in fig. 4, the first U-shaped isolation slot 9 includes a first isolation portion 91 and first extension portions 92 distributed at two ends of the first isolation portion 91 and perpendicular to the first isolation portion 91, and the first extension portions 92 are communicated with the first isolation portion 91, the radiation unit 7 is located between the two first extension portions 92, and the first U-shaped isolation slot 9 is located outside a rectangular cavity formed between the two first extension portions 92 and the first isolation portion 91; the second U-shaped isolation slot 10 includes a second isolation portion 101 and second extension portions 102 distributed at two ends of the second isolation portion 101 and perpendicular to the second isolation portion 101, the second extension portions 102 are communicated with the second isolation portion 101, the radiation unit 7 is located between the two second extension portions 102, and the radiation unit 7 is located outside a rectangular cavity formed between the two second extension portions 102 and the second isolation portion 101; in practice, the second isolation portion 101, the second extension portion 102, the first isolation portion 91 and the first extension portion 92 are formed, so that the radiation channels of each radiation unit 7 are consistent, and the purpose of optimizing the overall isolation of the antenna array is achieved.
It should be noted that, in the present invention, the depths of the first U-shaped isolation groove 9 and the second U-shaped isolation groove 10 are 2 to 3mm, the depth of the linear isolation groove 5 is the same as the depths of the first U-shaped isolation groove 9 and the second U-shaped isolation groove 10, in time, the first U-shaped isolation groove 9, the second U-shaped isolation groove 10 and the linear isolation groove 5 are formed by etching, and the widths of the first U-shaped isolation groove 9, the second U-shaped isolation groove 10 and the linear isolation groove 5 are determined by simulation software, so as to adjust the radiation units 7 according to actual parameters thereof, through simulation experiments, the isolation between every two adjacent radiation units 7 can be greatly improved by providing the first U-shaped isolation groove 9 and the second U-shaped isolation groove 10.
In addition, in order to further ensure the improvement of the isolation degree, in the present embodiment, the first U-shaped isolation groove 9 and the second U-shaped isolation groove 10 between any two adjacent radiation units 7 are axisymmetrical with respect to the axis between the two radiation units 7.
The linear isolation groove 5 is arranged on the axis between the two adjacent transmitting arrays 3 and receiving arrays 4, and the metal isolation strip 6 is positioned right above the metal isolation strip 6; the supporting strips 8 positioned at the two sides of the metal isolating strip 6 and the metal isolating strip 6 are integrally formed, and the included angle between the supporting strips 8 at the two sides and the vertical direction is a, wherein a is more than or equal to 30 degrees and less than or equal to 60 degrees; the cross sections of the metal isolating bars 6 and the supporting bars 8 are both circular or rectangular; in this embodiment, through being provided with support bar 8, it is when supporting metal isolating strip 6 and reaching the installation steadiness of strengthening metal isolating strip 6, can also utilize support bar 8 to further improve the mesh of the isolation between two adjacent radiating elements 7.
By combining the above, and proved by simulation experiments, the utility model is proved to obtain higher gain after the reflection line is added on the premise of keeping the omnidirectional radiation of the array antenna signal, and the gain of the 2.4GHz frequency band can reach more than 4 dBi.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a high isolation antenna array based on 5G millimeter wave basic station, includes metal bottom plate (1), antenna house (2) and sets up transmission battle array (3) and receiving battle array (4) on antenna house (2), its characterized in that: the transmitting array (3) and the receiving array (4) are at least provided with two columns, the transmitting array (3) and the receiving array (4) are distributed in a staggered mode in sequence, the upper end of the metal bottom plate (1) is provided with a linear isolation groove (5), the linear isolation groove (5) is arranged between every two adjacent transmitting arrays (3) and receiving arrays (4), the transmitting arrays (3) and the receiving arrays (4) are all identical in radiation linear array, a plurality of radiation units (7) are arranged on the upper ends of the transmitting arrays (3) and the receiving arrays (4) in an equal distance mode, the transmitting arrays (3) and the receiving arrays (4) are further provided with first U-shaped isolation grooves (9) and second U-shaped isolation grooves (10), each adjacent first U-shaped isolation groove (9) and one second U-shaped isolation groove (10) form a group of isolation groups, and the isolation groups are located between any two adjacent radiation units (7) on the same radiation linear array, the equal fixed mounting in up end both sides of metal soleplate (1) has vertical board (11) rather than integrated into one piece, two common fixed mounting has between vertical board (11) with quantity equal metal parting strip (6) of linear type isolation groove (5), every the equal equidistance symmetry fixedly connected with in both sides of metal parting strip (6) two support bars (8), the one end that metal parting strip (6) were kept away from in support bar (8) all with metal soleplate (1) fixed connection.
2. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the first U-shaped isolation groove (9) comprises first isolation parts (91) and first extension parts (92) which are distributed at two ends of the first isolation parts (91) and perpendicular to the first isolation parts (91), the first extension parts (92) are communicated with the first isolation parts (91), the radiation unit (7) is located between the two first extension parts (92), and the first U-shaped isolation groove (9) is located outside a rectangular cavity formed between the two first extension parts (92) and the first isolation parts (91) together.
3. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the second U-shaped isolation groove (10) comprises a second isolation portion (101) and second extension portions (102) which are distributed at two ends of the second isolation portion (101) and perpendicular to the second isolation portion (101), the second extension portions (102) are communicated with the second isolation portion (101), the radiation unit (7) is located between the two second extension portions (102), and the radiation unit (7) is located outside a rectangular cavity formed between the two second extension portions (102) and the second isolation portion (101).
4. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the first U-shaped isolation groove (9) and the second U-shaped isolation groove (10) between any two adjacent radiation units (7) are axisymmetrical with respect to an axis between the two radiation units (7).
5. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the linear type isolation groove (5) is arranged on an axis between two adjacent transmitting arrays (3) and receiving arrays (4), and the metal isolation strip (6) is located right above the metal isolation strip (6).
6. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the support bars (8) and the metal isolation bars (6) on two sides of the metal isolation bars (6) are integrally formed, the support bars (8) on two sides of the metal isolation bars and the included angle of the vertical direction are alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
7. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the depth of the first U-shaped isolation groove (9) and the depth of the second U-shaped isolation groove (10) are 2-3mm, and the depth of the linear isolation groove (5) is consistent with the depth of the first U-shaped isolation groove (9) and the depth of the second U-shaped isolation groove (10).
8. The high-isolation antenna array based on the 5G millimeter wave base station as claimed in claim 1, wherein: the cross sections of the metal isolating bars (6) and the supporting bars (8) are both circular or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220423494.4U CN217035997U (en) | 2022-03-01 | 2022-03-01 | High-isolation antenna array based on 5G millimeter wave base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220423494.4U CN217035997U (en) | 2022-03-01 | 2022-03-01 | High-isolation antenna array based on 5G millimeter wave base station |
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| Publication Number | Publication Date |
|---|---|
| CN217035997U true CN217035997U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220423494.4U Active CN217035997U (en) | 2022-03-01 | 2022-03-01 | High-isolation antenna array based on 5G millimeter wave base station |
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| CN (1) | CN217035997U (en) |
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- 2022-03-01 CN CN202220423494.4U patent/CN217035997U/en active Active
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