CN114976535A - Transmission phase-shifting system and antenna - Google Patents
Transmission phase-shifting system and antenna Download PDFInfo
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- CN114976535A CN114976535A CN202210613382.XA CN202210613382A CN114976535A CN 114976535 A CN114976535 A CN 114976535A CN 202210613382 A CN202210613382 A CN 202210613382A CN 114976535 A CN114976535 A CN 114976535A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 78
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 230000010363 phase shift Effects 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims description 7
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- RDYMFSUJUZBWLH-UHFFFAOYSA-N endosulfan Chemical compound C12COS(=O)OCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl RDYMFSUJUZBWLH-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention provides a transmission phase shift system and an antenna, wherein the system comprises: a phase shifter component comprising a phase shifter medium and a phase shifter cavity; the power conversion component is respectively connected with two ends of the phase shifter medium through cables; the power conversion component is used for applying a pulling force to one end of the phase shifter medium to pull the phase shifter medium out of the phase shifter cavity, or applying a pulling force to the other end of the phase shifter medium to pull the phase shifter medium into the phase shifter cavity. The antenna phase shifter has the advantages of flexible layout, simple structure and small occupied space, increases the motion space of the phase shifter, accurately controls the motion of the phase shifter and improves the adjustment precision of the antenna electrical downtilt angle.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a transmission phase-shifting system and an antenna.
Background
With the continuous progress of mobile communication technology, the structure of the base station antenna becomes more and more complex as an important loop in the mobile communication device. Especially, in recent years, the application of smart antennas and the application of 4G and 5G fusion antennas make it increasingly difficult to design base station antennas in a limited space. Especially for the multi-frequency and multi-port electrically-tunable antenna, the number of phase shifters is large, the layout is very compact, and high requirements are provided for the structural design of the antenna. Along with the trend of light weight and miniaturization of antenna products, the internal structure of the antenna products is necessarily simplified.
In the prior art, for solving the phase shifter layout of the multi-frequency multi-port antenna, a gear shifting mechanism is designed to solve the problem of front-end power input, but the motion of a rear-end phase shifter is still driven by each frequency band or port independently in a straight line, and meanwhile, the phase shifter needs to be switched by metal plates or other structural parts, occupies a large space, is also limited by other internal components of the antenna in the motion process, and the switching also reduces the motion precision of the phase shifter, so that the electrical downtilt accuracy of the antenna is reduced.
Disclosure of Invention
The invention provides a transmission phase shifting system and an antenna, which are used for solving the defects that the phase shifting system in the prior art occupies a large space, the motion of a phase shifter is limited and has low precision, and the adjustment of the electrical downtilt of the antenna is inaccurate, realizing the flexible arrangement of the position of the phase shifter, reducing the occupied space, increasing the motion space of the phase shifter, accurately controlling the motion of the phase shifter and improving the adjustment precision of the electrical downtilt of the antenna.
The invention provides a transmission phase shift system, comprising:
a phase shifter component comprising a phase shifter medium and a phase shifter cavity;
the power conversion component is respectively connected with two ends of the phase shifter medium through cables;
the power conversion component is used for applying a pulling force to one end of the phase shifter medium to pull the phase shifter medium out of the phase shifter cavity, or applying a pulling force to the other end of the phase shifter medium to pull the phase shifter medium into the phase shifter cavity.
According to the invention, the power conversion component comprises:
a gear pair comprising two gears that mesh with each other;
a power input shaft, one of the two gears being fixed to the power input shaft;
the other gear of the two gears is fixed on the transmission shaft, and a cable connected with two ends of the phase shifter medium is wound on the transmission shaft;
the transmission shaft is used for applying a pulling force to one end of the phase shifter medium when the transmission shaft is driven by the power input shaft to move towards one direction, and the phase shifter medium is pulled out of the phase shifter cavity; when the phase shifter moves towards the other direction, applying a pulling force to the other end of the phase shifter medium to pull the phase shifter medium into the phase shifter cavity;
and the transmission shaft support is used for supporting the transmission shaft and is fixed on a reflecting plate of the antenna.
According to the transmission phase shift system provided by the invention, the power conversion part also comprises a transmission pulley,
the transmission pulley is assembled on the transmission shaft;
cables connected with two ends of the phase shifter medium are wound on the transmission pulley;
both ends of the drive shaft are fitted on the drive shaft support.
According to the transmission phase shifting system provided by the invention, two ends of the transmission shaft are assembled on the transmission shaft support in a clamping or shaft hole matching mode.
According to the transmission phase shifting system provided by the invention, the phase shifter component further comprises two phase shifter pulleys;
the two phase shifter pulleys are respectively positioned at two sides of the phase shifter;
the cable connected to one end of the phase shifter medium is wound around a phase shifter pulley on one side of the phase shifter, and the cable connected to the other end of the phase shifter medium is wound around a phase shifter pulley on the other side of the phase shifter and then wound around the power conversion member.
According to the transmission phase shifting system provided by the invention, the phase shifter also comprises two connecting pieces;
hole sites are arranged at two ends of the phase shifter medium;
the two connecting pieces are correspondingly connected with the two ends of the phase shifter medium through the hole positions;
the power conversion part is connected with the two connecting pieces through cables.
The invention provides a transmission phase shift system, which further comprises a scale component, wherein the scale component comprises a scale and an end cover;
the end cover is fixed on the inner side of the end face of the shell of the antenna, a viewing window is formed in the opposite side of the end cover, and the scale penetrates through the viewing window;
one end of the scale is connected with a cable connected with one end of the phase shifter medium, and the other end of the scale is wound on the power conversion component after being connected with the cable connected with the other end of the phase shifter medium.
According to the transmission phase shift system provided by the invention, the scale component further comprises a scale supporting pulley;
the scale supporting pulley is positioned on one side of the end cover and is fixed on a reflecting plate of the antenna;
the cable is wound around the scale support pulley.
The invention also provides an antenna comprising any one of the transmission phase shift systems.
The antenna provided by the invention further comprises a plurality of radiation units, wherein the transmission phase shift systems are provided;
each transmission phase shift system is connected with different radiation units.
According to the transmission phase shifting system and the antenna, the phase shifter part and the power conversion part are communicated through the cable, the phase shifter part can be freely placed on one side of the reflecting plate, the layout is flexible, the structure is simple, the occupied space is small, the movement space of the phase shifter is increased, and the limited space on one side of the reflecting plate is effectively utilized.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a transmission phase shift system according to the present invention;
FIG. 2 is a schematic diagram of a phase shifter assembly for a driven phase shifting system according to the present invention;
FIG. 3 is a schematic diagram of a power conversion component of the transmission phase shift system provided by the present invention;
FIG. 4 is a schematic structural diagram of a scale component in the transmission phase shift system provided by the invention.
1: a power conversion component; 2: a phase shifter member; 3: a scale member; 4: a cable; 11: a power input shaft; 12: a gear pair; 13: a drive shaft; 14: a transmission shaft support; 15: a transmission pulley; 21: a phase shifter medium; 22: a connecting member; 23: a phase shifter pulley; 24: a phase shifter cavity; 31: a scale supporting pulley; 32: a scale; 33: an end cap; 34: a reflective plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A driven phasing system of the invention is described below in conjunction with FIGS. 1 and 2, comprising:
a phase shifter component 2, the phase shifter component 2 comprising a phase shifter medium 21 and a phase shifter cavity 24;
a power conversion member 1, wherein the power conversion member 1 is connected to both ends of the phase shifter medium 21 through cables 4, respectively;
optionally, the cable 4 is a flexible chain and the phase shifter medium 21 is of an integral design. Both ends of the phase shifter medium 21 are connected by the cable 4, and then the cable 4 is wound around the power conversion member 1. Alternatively, one ends of the two cables 4 are connected to both ends of the phase shifter medium 21, and the other ends of the two cables 4 are fixed to the power conversion member 1.
The power conversion component 1 is configured to apply a tensile force to one end of the phase shifter medium 21 to pull the phase shifter medium 21 out of the phase shifter cavity 24, or apply a tensile force to the other end of the phase shifter medium 21 to pull the phase shifter medium 21 into the phase shifter cavity 24.
Optionally, the phase shifter is a PCB phase shifter. The phase shifter comprises two pieces of phase shifter media 21, the PCB is located between the two pieces of phase shifter media 21, and the phase shifter media 21 can slide in the phase shifter cavity 24. The PCB circuit board and the phase shifter medium 21 are located in the phase shifter cavity 24.
In the movement process of the power conversion part 1, the cable 4 drives the phase shifter medium 21 to move, so that the contact area between the phase shifter medium 21 and the PCB is changed, and the downward inclination angle of the antenna beam can be adjusted.
This embodiment is through passing through the cable intercommunication between moving looks ware part and the power conversion part, moves looks ware part and can freely place in one side of reflecting plate, and the overall arrangement is nimble, simple structure, and occupation space is little, increases the motion space who moves looks ware, makes the finite space of reflecting plate one side obtain effective utilization.
On the basis of the above embodiment, as shown in fig. 3, the power conversion part 1 in the present embodiment includes:
a gear pair 12 comprising two gears that mesh with each other;
optionally, gear set 12 is a bevel gear set.
A power input shaft 11, one of the two gears being fixed to the power input shaft;
alternatively, one end of the power input shaft 11 is connected to the engine, and the top end of the other end fixes the gear. The power input shaft 11 is rotated by the engine.
A transmission shaft 13, the other of the two gears being fixed to the transmission shaft 13, and a cable connecting both ends of the phase shifter medium being wound around the transmission shaft 13;
a gear is fixed at the top end of the transmission shaft 13. Since the two gears of the gear pair are engaged with each other, when the power input shaft 11 rotates, the transmission shaft 13 also rotates under the action of the gear pair. The gear pair 12 converts the power input of the power input shaft 11 into a power conversion direction and realizes the power conversion by combining with the transmission shaft 13.
Since the cable 4 connecting both ends of the phase shifter medium 21 is wound around the transmission shaft 13. As the drive shaft 13 rotates, the phase shifter medium 21 is pulled into motion.
The transmission shaft 13 is used for applying a pulling force to one end of the phase shifter medium 21 when the transmission shaft is driven by the power input shaft 11 to move in one direction, so that the phase shifter medium 21 is pulled out of the phase shifter cavity 24; when moving to the other direction, applying a pulling force to the other end of the phase shifter medium 21 to pull the phase shifter medium 21 into the phase shifter cavity 24;
the moving direction of the phase shifter medium 21 is changed by changing the direction of the power input by the power input shaft 11, so that the fine adjustment of the movement of the phase shifter medium 21 is realized.
And a transmission shaft support 14, wherein the transmission shaft support 14 is used for supporting the transmission shaft and is fixed on the reflecting plate of the antenna.
Alternatively, the drive shaft support 14 is fixed to one plane of the reflector plate and the radiating element of the antenna is fixed to the other plane of the reflector plate.
The drive shaft support 14 comprises a base and two support portions, the distance between which is less than the length of the drive shaft. The base is fixed on the reflecting plate through screws, one end of the supporting part is fixed on the base, and the other end of the supporting part is used for supporting the transmission shaft 13.
On the basis of the above embodiment, as shown in fig. 3, the power conversion component in this embodiment further includes a transmission pulley 15, and the transmission pulley 15 is assembled on the transmission shaft 13;
the cable connecting the two ends of the phase shifter medium 21 is wound on the transmission pulley 15;
both ends of the drive shaft 13 are fitted on the drive shaft support.
Optionally, a through hole is provided along the central axis of the transmission pulley 15, and the length of the transmission shaft is greater than the length of the through hole. The drive shaft 13 passes through the through-hole, and the drive pulley 15 is integrally designed with the drive shaft.
On the basis of the above embodiment, as shown in fig. 3, in this embodiment, both ends of the transmission shaft are assembled on the transmission shaft support in a manner of clamping or shaft hole matching.
Alternatively, the top end of the drive shaft support 14 for supporting the drive shaft 13 is provided with a U-shaped opening. Both ends of the transmission shaft 13 are clamped in the U-shaped opening and can rotate in the U-shaped opening.
Or one end of the transmission shaft support 14 for supporting the transmission shaft 13 is provided with a through hole, and both ends of the transmission shaft 13 are inserted through the corresponding through holes and assembled on the transmission shaft support 14.
On the basis of the above-described embodiments, as shown in fig. 2, the phase shifter element 2 in the present embodiment further includes two phase shifter pulleys 23;
the two phaser pulleys 23 are located on either side of the phaser;
the cable connected to one end of the phase shifter medium 21 is wound around the phase shifter pulley 23 on one side of the phase shifter, and the cable connected to the other end of the phase shifter medium is wound around the phase shifter pulley 23 on the other side of the phase shifter and then wound around the power conversion member 1.
On the basis of the above embodiments, as shown in fig. 2, the phase shifter in this embodiment further includes two connecting members 22;
hole sites are arranged at two ends of the phase shifter medium 21, and the two connecting pieces 22 are correspondingly connected with two ends of the phase shifter medium 21 through the hole sites;
optionally, hole sites are also provided on the two connecting pieces 22, and after the hole sites on the connecting pieces 22 are aligned with the hole sites on the two ends of the phase shifter medium 21, screws are inserted into the hole sites, and the insertion ends of the screws are fixed by using bolts.
The power conversion part 1 is connected to the two connecting members 22 by a cable 4.
The cable 4 is connected to the connection member 22 via the phaser pulleys 23 disposed on both sides of the phaser.
On the basis of the above embodiments, as shown in fig. 4, the present embodiment further includes a scale member 3, where the scale member 3 includes a scale 32 and an end cap 33;
the end cover 33 is fixed on the inner side of the end face of the shell of the antenna, a viewing window is formed in the opposite side of the end cover 33, and the scale penetrates through the viewing window;
one end of the scale 32 is connected to a cable connected to one end of the phase shifter medium 21, and the other end of the scale 32 is wound around the power conversion member 1 after being connected to a cable connected to the other end of the phase shifter medium 21.
Optionally, the end cap 33 is fixed inside the upper or lower cover of the antenna housing. In fig. 4, the upper and lower sides of the end cover are provided with viewing windows, or the left and right sides of the end cover may be provided with viewing windows, which is not limited in this embodiment. The scale 32 passes through a viewing window on the opposite side of the end cap 33 through which the real time scale of the scale 32 can be read.
The scale 32 is made of a flexible material, and the scale 32 is provided with a scale. Both ends of the scale 32 are connected to the cables 4. The cables 4 connected with the two ends of the phase shifter medium 21 are respectively connected with the two ends of the scale 32 to form a closed ring. The cable is wound around the transmission pulley 15 of the power conversion part 1.
When the phase shifter medium 21 is completely located in the phase shifter cavity 24, the cable connecting the two ends of the phase shifter medium 21 is in a tensioned state, and the scale on the scale 32 is 0.
This embodiment is through at the scale, move the ware part and power conversion part between through the cable intercommunication, move the ware part and the scale can freely place in one side of reflecting plate 34, and the overall arrangement is nimble, simple structure, and occupation space is little, increases the motion space who moves the ware, makes the finite space of reflecting plate one side obtain effective utilization.
On the basis of the above embodiments, as shown in fig. 4, the scale member 3 in the present embodiment further includes a scale supporting pulley 31;
the scale supporting pulley 31 is positioned at one side of the end cover 33, and the scale supporting pulley 31 is fixed on a reflecting plate of the antenna;
the cable 4 is wound around the scale supporting pulley 31.
The cable 4 is connected to one end of the phase shifter element 2 after passing around the scale supporting pulley 31, and the other end is connected to the other end of the phase shifter element 2 via the power conversion element 1.
The antenna provided by the present invention is described below, and the antenna described below and the transmission phase shift system described above are referred to correspondingly.
This embodiment provides an antenna comprising the transmission phasing system of any of the above embodiments.
The present embodiment is not limited to other structures of the antenna.
This embodiment is through passing through the cable intercommunication between moving looks ware part and the power conversion part, moves looks ware part and can freely place in one side of reflecting plate, and the overall arrangement is nimble, simple structure, and occupation space is little, increases the motion space who moves looks ware, makes the finite space of reflecting plate one side obtain effective utilization.
On the basis of the above embodiments, the present embodiment further includes a plurality of radiation units, and the number of the transmission phase shift systems is plural;
each transmission phase shift system is connected with different radiation units.
In the embodiment, the plurality of transmission phase shift systems are connected with different radiation units, so that the downward inclination angles of the emitted beams of different radiation units can be independently adjusted, the expandability is realized, the requirement of multipath transmission phase shift can be met, and the antenna is suitable for the design of complex antennas.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A motion transmitting phase shifting system, comprising:
the phase shifter component comprises a phase shifter, and the phase shifter comprises a phase shifter medium and a phase shifter cavity;
the power conversion component is respectively connected with two ends of the phase shifter medium through cables;
the power conversion component is used for applying a pulling force to one end of the phase shifter medium to pull the phase shifter medium out of the phase shifter cavity, or applying a pulling force to the other end of the phase shifter medium to pull the phase shifter medium into the phase shifter cavity.
2. The driving phasing system of claim 1, wherein the power conversion component comprises:
a gear pair comprising two gears that mesh with each other;
a power input shaft, one of the two gears being fixed to the power input shaft;
the other gear of the two gears is fixed on the transmission shaft, and a cable connected with two ends of the phase shifter medium is wound on the transmission shaft;
the transmission shaft is used for applying a pulling force to one end of the phase shifter medium when the transmission shaft is driven by the power input shaft to move towards one direction, and the phase shifter medium is pulled out of the phase shifter cavity; when the phase shifter moves towards the other direction, applying a pulling force to the other end of the phase shifter medium to pull the phase shifter medium into the phase shifter cavity;
the transmission shaft support is used for supporting the transmission shaft and is fixed on a reflecting plate of the antenna.
3. The driving phasing system of claim 2, wherein the power conversion component further comprises a drive pulley,
the transmission pulley is assembled on the transmission shaft;
cables connected with two ends of the phase shifter medium are wound on the transmission pulley;
both ends of the drive shaft are fitted on the drive shaft support.
4. The system for dephasing the drive of claim 3, wherein the two ends of the drive shaft are assembled on the drive shaft support by means of clamping or shaft hole fitting.
5. The transmitted phase shifting system of any of claims 1-4, wherein the phase shifter assembly further comprises two phase shifter pulleys;
the two phase shifter pulleys are respectively positioned at two sides of the phase shifter;
the cable connected to one end of the phase shifter medium is wound around a phase shifter pulley on one side of the phase shifter, and the cable connected to the other end of the phase shifter medium is wound around a phase shifter pulley on the other side of the phase shifter and then wound around the power conversion member.
6. The transmitted phase-shifting system of any of claims 1-4, wherein the phase shifter further comprises two connecting members;
hole sites are arranged at two ends of the phase shifter medium;
the two connecting pieces are correspondingly connected with the two ends of the phase shifter medium through the hole positions;
the power conversion part is connected with the two connecting pieces through cables.
7. The transmitted phase shifting system of any one of claims 1-4, further comprising a scale member, the scale member comprising a scale and an end cap;
the end cover is fixed on the inner side of the end face of the shell of the antenna, a viewing window is formed in the opposite side of the end cover, and the scale penetrates through the viewing window;
one end of the scale is connected with a cable connected with one end of the phase shifter medium, and the other end of the scale is wound on the power conversion component after being connected with the cable connected with the other end of the phase shifter medium.
8. The transmitted phase shifting system of claim 7, wherein the scale member further comprises a scale support pulley;
the scale supporting pulley is positioned on one side of the end cover and is fixed on a reflecting plate of the antenna;
the cable is wound around the scale support pulley.
9. An antenna comprising a transmission phasing system according to any one of claims 1 to 8.
10. The antenna of claim 9, further comprising a plurality of radiating elements, wherein said transmission phasing system is plural;
each transmission phase shift system is connected with different radiation units.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210613382.XA CN114976535B (en) | 2022-05-31 | 2022-05-31 | Transmission phase-shifting system and antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210613382.XA CN114976535B (en) | 2022-05-31 | 2022-05-31 | Transmission phase-shifting system and antenna |
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| CN114976535A true CN114976535A (en) | 2022-08-30 |
| CN114976535B CN114976535B (en) | 2023-12-05 |
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| CN114976535B (en) | 2023-12-05 |
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