CN114094351A - 4TR antenna - Google Patents
4TR antenna Download PDFInfo
- Publication number
- CN114094351A CN114094351A CN202111331182.7A CN202111331182A CN114094351A CN 114094351 A CN114094351 A CN 114094351A CN 202111331182 A CN202111331182 A CN 202111331182A CN 114094351 A CN114094351 A CN 114094351A
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- electromagnetic wave
- antenna
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- metal box
- wave lens
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- 239000002184 metal Substances 0.000 claims description 33
- 230000005855 radiation Effects 0.000 claims description 26
- 238000013461 design Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to a 4TR antenna, which is characterized by comprising a reference surface and an oscillator array; the oscillator array is arranged above the reference surface, a phase center is arranged on the reference surface, and an axis which is perpendicular to the reference surface and passes through the phase center of the reference surface is L1; the oscillator array comprises 4 symmetrical oscillators distributed around an axis L1 array, and included angles alpha formed by the axes of oscillator arms of each symmetrical oscillator and a reference plane are all in the range of 30-60 degrees. The invention has the characteristics of simple structure, reasonable design, small volume, light weight, small occupied area and the like.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a 4TR antenna.
Background
With the development of mobile communication, the MIMO technology has more and more requirements on the number of channels of an antenna, and at least 4TR is required to meet the use requirement in the use process. If the existing antenna wants to realize 4TR (four-channel), a common method is to adopt two (or two groups of) dual-polarized oscillators to realize, that is, each oscillator provides 2TR, and two oscillators are 4TR, so that the 4TR antenna formed by simply combining 2 dual-polarized oscillators has a large size and occupies a large area. In addition, if four conventional dipoles are combined, a 4TR antenna can be formed, but the size of such a 4TR antenna formed by directly arranging and splicing is also large.
Disclosure of Invention
The invention aims to provide a 4TR antenna, which has the advantages of simple structure, reasonable design, small volume, light weight, small occupied area and the like.
The technical scheme of the invention is realized as follows: a4 TR antenna is characterized by comprising a reference plane and an oscillator array; the oscillator array is arranged above the reference surface, a phase center is arranged on the reference surface, and an axis which is perpendicular to the reference surface and passes through the phase center of the reference surface is L1; the oscillator array comprises 4 symmetrical oscillators distributed around an axis L1 array, and included angles alpha formed by the axes of oscillator arms of each symmetrical oscillator and a reference plane are all in the range of 30-60 degrees.
According to the technical scheme, the axis of each dipole arm of each dipole of the dipole array is arranged to form a certain included angle with the reference surface, so that the transverse distance between the ends, away from each other, of the 2 dipole arms of each dipole array is reduced, the transverse direction is parallel to the reference surface, and therefore the 4 dipoles can be closer to each other when being arranged in an array mode around the axis L1, so that the 4 dipoles capable of working independently can be integrated into one phase center, beam pointing can be unified while the four-channel antenna is formed, the size of the technical scheme is greatly reduced, the occupied area during use is reduced, and the weight of the technical scheme is lighter.
Furthermore, the invention also comprises an electromagnetic wave lens which is arranged on the side of the vibrator array far away from the reference surface, the axis L1 passes through the center of the electromagnetic wave lens, and the signal transceiving directions of each symmetrical vibrator are arranged towards the electromagnetic wave lens.
Further, the electromagnetic wave lens is of a spherical structure, and the center of the electromagnetic wave lens is the spherical center of the electromagnetic wave lens; the working wavelength of each symmetrical vibrator is lambda; the horizontal distance between the radiation point of each symmetrical oscillator and the spherical center of the electromagnetic wave lens is d, and d is in the range of 0.5-0.8.
Furthermore, the working frequency of each symmetrical vibrator is within the range of 1710MHz to 2170 MHz.
Further, the vertical distance between the radiation point of each symmetrical vibrator and the spherical center of the electromagnetic wave lens is h1, d: h1 is measured at 1: 10-7: 10, in the range of 10.
Furthermore, the vertical distance between the radiation point of each symmetrical vibrator and the surface of the electromagnetic wave lens is h2, the radius of the electromagnetic wave lens is r, r is more than 2 lambda, h2 is in the range of 8 mm-30 mm, and h1 is the sum of h2 and r.
Furthermore, the invention also comprises a metal box body, wherein the metal box body is of a structure with an opening at one side, the vibrator array is arranged in the metal box body, and the electromagnetic wave lens is arranged on the opening of the metal box body; the reference surface is the inner wall surface facing the opening in the metal box, and the inner wall surface facing the opening in the metal box is also a reflecting surface.
Furthermore, each symmetrical oscillator of the oscillator array is respectively installed on the reflecting surface of the metal box body through the feed balun.
Furthermore, each symmetrical oscillator is a half-wave symmetrical oscillator; the length L of the metal box body is within the range of 0.7 lambda-0.8 lambda, the width W of the metal box body is within the range of 0.7 lambda-0.8 lambda, and the height H of the metal box body is within the range of 0.2 lambda-0.6 lambda.
The invention has the beneficial effects that: has the advantages of simple structure, reasonable design, small volume, light weight, small occupied area and the like.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a schematic structural view of the metal box body removed according to the embodiment.
Fig. 3 is a schematic structural view of the electromagnetic wave lens according to the embodiment after the electromagnetic wave lens is removed.
Fig. 4 is a horizontal plane radiation pattern of the first element in simulation of the embodiment.
Fig. 5 is a vertical plane radiation pattern of the first element in simulation of the embodiment.
Fig. 6 is a horizontal plane radiation pattern of the second element in simulation according to the embodiment.
Fig. 7 is a vertical plane radiation pattern of the second element in simulation of the embodiment.
Fig. 8 is the horizontal plane radiation pattern of the third element in simulation of the embodiment.
Fig. 9 is a vertical plane radiation pattern of the third element in simulation of the embodiment.
Fig. 10 is the horizontal plane radiation pattern of the fourth element in simulation of the embodiment.
Fig. 11 is a vertical plane radiation pattern of the fourth element in simulation of the embodiment.
Description of reference numerals: 1-a reference plane; 2-vibrator array; 31-a first oscillator; 32-a second oscillator; 33-a third oscillator; 34-a fourth oscillator; 4-an electromagnetic wave lens; 5-metal box body.
Detailed Description
As shown in fig. 1 and fig. 2, the 4TR antenna of the present embodiment includes a reference plane 1 and an element array 2; the oscillator array 2 is arranged above the reference surface 1, a phase center is arranged on the reference surface 1, and an axis which is perpendicular to the reference surface 1 and passes through the phase center of the reference surface 1 is L1; the oscillator array 2 comprises 4 dipoles arranged around an axis L1 array, the 4 dipoles are a first oscillator 31, a second oscillator 32, a third oscillator 33 and a fourth oscillator 34, it should be noted here that the dipoles refer to a single oscillator type, and do not refer to two oscillators distributed symmetrically, an included angle α formed by an axis of an oscillator arm of each dipole and a reference plane 1 is in a range of 30 ° to 60 °, and the included angle α is preferably 45 °, so that the 2 dipoles arranged oppositely are perpendicular to each other, for example, the first oscillator 31 is perpendicular to the third oscillator 33. In addition, it should be noted here that: 2 dipole arms of each dipole in the dipole array 2 of the 4TR antenna are coaxially arranged, an included angle alpha formed by the 4 dipoles in the dipole array 2 and the reference surface 1 faces to a single direction, the single direction in the embodiment is a counterclockwise direction rotating around an axis L1 under the state of being over against the reference surface 1, and therefore blocking between the adjacent 2 dipoles can be avoided. This 4TR antenna sets up the design that is certain contained angle with reference plane 1 through the axis with the dipole arm of each dipole of dipole array 2 for the horizontal interval between the one end that 2 dipole arms of dipole are kept away from each other diminishes, this transversely is the direction parallel with the reference plane, make 4 dipoles ring axis L1 make array when laying and can draw close to like this, not only can integrate 4 dipoles that can independently work in a phase center like this, still can make the wave beam point to unify when forming the four-channel antenna, the volume of this 4TR antenna has been reduced greatly, area when reducing the use and the weight that makes this 4TR antenna lighter.
In order to improve the transmitting and receiving effects of the 4TR antenna in use, as shown in fig. 1 and 2, the 4TR antenna further includes an electromagnetic wave lens 4, the electromagnetic wave lens 4 is disposed on a side of the element array 2 away from the reference plane 1, the axis L1 passes through the center of the electromagnetic wave lens 4, and the signal transmitting and receiving directions of each symmetrical element are disposed toward the electromagnetic wave lens 4.
In order to improve the isolation of each dipole in the 4TR antenna, as shown in fig. 2, the electromagnetic wave lens 4 is of a spherical structure, and the center of the electromagnetic wave lens 4 is the spherical center thereof; the working wavelength of each symmetrical vibrator is lambda; the horizontal distance between the radiation point of each dipole and the spherical center of the electromagnetic wave lens 4 is d, and d is in the range of 0.5-0.8. The working frequency of each symmetrical vibrator is within the range of 1710 MHz-2170 MHz, and the working wavelength lambda of the symmetrical vibrator can be calculated through the working frequency of the symmetrical vibrator.
As shown in fig. 2, the vertical distances between the radiation point of each dipole and the spherical center of the electromagnetic wave lens 4 are h1, d: h1 is measured at 1: 10-7: 10, in the range of 10. When in use, when d: the smaller the value of h1, the higher the degree of overlap of the radiation areas generated by the 4 dipoles at this time, and the easier it is to implement a 4TR antenna.
In order to make the structure of the 4TR antenna more reasonable, as shown in FIG. 2, the vertical distance between the radiating point of each symmetrical dipole and the surface of the electromagnetic wave lens 4 is h2, the radius of the electromagnetic wave lens 4 is r, r is more than 2 lambda, h2 is in the range of 8 mm-30 mm, and h1 is the sum of h2 and r.
In order to ensure that the radiation patterns of each symmetrical oscillator of the 4TR antenna are more highly consistent, and the use effect of the 4TR antenna is better, as shown in fig. 1, 2 and 3, the 4TR antenna further comprises a metal box body 5, wherein the metal box body 5 is of a structure with an opening on one side, the oscillator array 2 is arranged in the metal box body 5, and the electromagnetic wave lens 4 is arranged on the opening of the metal box body 5; the reference surface 1 is an inner wall surface of the metal box body 5 facing the opening, and the inner wall surface of the metal box body 5 facing the opening is also a reflecting surface.
In order to make the mounting structure of the dipoles more reasonable, each dipole of the dipole array 2 is respectively mounted on the reflecting surface of the metal box 5 through a feeding balun (the feeding balun is not shown in the drawing).
In order to make the beam of each dipole of the 4TR antenna converge and adjust the direction of each dipole when in use, as shown in fig. 3, each dipole is a half-wave dipole; the length L of the metal box body 5 is within the range of 0.7 lambda-0.8 lambda, the width W of the metal box body 5 is within the range of 0.7 lambda-0.8 lambda, and the height H of the metal box body 5 is within the range of 0.2 lambda-0.6 lambda. The length L and width W of the metal case 5 in the present 4TR antenna are the same.
When the 4TR antenna is subjected to simulation test, the horizontal plane radiation pattern of the first element 31 is shown in fig. 4, and the vertical plane radiation pattern of the first element 31 is shown in fig. 5; the horizontal plane radiation pattern of the second element 32 is shown in fig. 6, and the vertical plane radiation pattern of the second element 32 is shown in fig. 7; the horizontal plane radiation pattern of the third element 33 is shown in fig. 8, and the vertical plane radiation pattern of the third element 33 is shown in fig. 9; the horizontal plane radiation pattern of the fourth element 34 is shown in fig. 10, and the vertical plane radiation pattern of the fourth element 34 is shown in fig. 11. From fig. 4 to 11, it can be seen that: the beam directions of all ports of the 4TR antenna can be highly unified during simulation test.
Claims (9)
1. A 4TR antenna, characterized by: the device comprises a reference plane and a vibrator array; the oscillator array is arranged above the reference surface, a phase center is arranged on the reference surface, and an axis which is perpendicular to the reference surface and passes through the phase center of the reference surface is L1; the oscillator array comprises 4 symmetrical oscillators distributed around an axis L1 array, and included angles alpha formed by the axes of oscillator arms of each symmetrical oscillator and a reference plane are all in the range of 30-60 degrees.
2. A 4TR antenna as claimed in claim 1, wherein: the electromagnetic wave lens is arranged on the side of the vibrator array far away from the reference surface, the axis L1 passes through the center of the electromagnetic wave lens, and the signal transceiving directions of the symmetrical vibrators are all arranged towards the electromagnetic wave lens.
3. A 4TR antenna as claimed in claim 2, wherein: the electromagnetic wave lens is of a spherical structure, and the center of the electromagnetic wave lens is the spherical center of the electromagnetic wave lens; the working wavelength of each symmetrical vibrator is lambda; the horizontal distance between the radiation point of each symmetrical oscillator and the spherical center of the electromagnetic wave lens is d, and d is in the range of 0.5-0.8.
4. A 4TR antenna as claimed in claim 3, wherein: the working frequency of each symmetrical vibrator is within the range of 1710MHz to 2170 MHz.
5. A4 TR antenna as claimed in claim 4, wherein: the vertical distance between the radiation point of each dipole and the spherical center of the electromagnetic wave lens is h1, d: h1 is measured at 1: 10-7: 10, in the range of 10.
6. A4 TR antenna as claimed in claim 5, wherein: the vertical distance between the radiation point of each dipole and the surface of the electromagnetic wave lens is h2, the radius of the electromagnetic wave lens is r, r is more than 2 lambda, h2 is in the range of 8 mm-30 mm, and h1 is the sum of h2 and r.
7. A4 TR antenna as claimed in claim 5, wherein: the electromagnetic wave sensor is characterized by also comprising a metal box body, wherein the metal box body is of a structure with an opening at one side, the vibrator array is arranged in the metal box body, and the electromagnetic wave lens is arranged on the opening of the metal box body; the reference surface is the inner wall surface facing the opening in the metal box, and the inner wall surface facing the opening in the metal box is also a reflecting surface.
8. A 4TR antenna as claimed in claim 7, wherein: and each symmetrical oscillator of the oscillator array is respectively arranged on the reflecting surface of the metal box body through a feed balun.
9. A 4TR antenna as claimed in claim 7, wherein: each dipole is a half-wave dipole; the length L of the metal box body is within the range of 0.7 lambda-0.8 lambda, the width W of the metal box body is within the range of 0.7 lambda-0.8 lambda, and the height H of the metal box body is within the range of 0.2 lambda-0.6 lambda.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111331182.7A CN114094351B (en) | 2021-11-11 | 2021-11-11 | 4TR antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111331182.7A CN114094351B (en) | 2021-11-11 | 2021-11-11 | 4TR antenna |
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| Publication Number | Publication Date |
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| CN114094351A true CN114094351A (en) | 2022-02-25 |
| CN114094351B CN114094351B (en) | 2023-04-28 |
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| CN202111331182.7A Active CN114094351B (en) | 2021-11-11 | 2021-11-11 | 4TR antenna |
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