CN114976535B - Transmission phase-shifting system and antenna - Google Patents
Transmission phase-shifting system and antenna Download PDFInfo
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- CN114976535B CN114976535B CN202210613382.XA CN202210613382A CN114976535B CN 114976535 B CN114976535 B CN 114976535B CN 202210613382 A CN202210613382 A CN 202210613382A CN 114976535 B CN114976535 B CN 114976535B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 92
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 230000010363 phase shift Effects 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 14
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process 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
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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, the phase shifter comprising a phase shifter medium and a phase shifter cavity; the power conversion component is connected with two ends of the phase shifter medium through cables respectively; the power conversion component is used for applying a pulling force to one end of the phase shifter medium, pulling the phase shifter medium out of the phase shifter cavity, or applying a pulling force to the other end of the phase shifter medium, and pulling the phase shifter medium into the phase shifter cavity. The invention has flexible layout, simple structure and small occupied space, increases the movement space of the phase shifter, accurately controls the movement of the phase shifter and improves the adjustment precision of the electric downtilt angle of the antenna.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a transmission phase shift system and an antenna.
Background
With the continuous progress of mobile communication technology, a base station antenna is an important ring in mobile communication equipment, and its structure is more and more complex. Particularly in recent years, the application of smart antennas and the application of 4G and 5G combined antennas make it more difficult to design a base station antenna in a limited space. Particularly, for the multi-frequency multi-port electrically tunable antenna, the number of phase shifters is large, the layout is very compact, and high requirements are put on the structural design of the antenna. Along with the development trend of light weight and miniaturization of antenna products, the internal structure of the antenna products is necessarily simplified.
In order to solve the problem of front-end power input, a shift mechanism is designed to solve the layout of the phase shifter of the multi-frequency multi-port antenna in the prior art, but the motion of the rear-end phase shifter still adopts independent linear driving of each frequency band or port, meanwhile, the space is occupied by the phase shifter through the switching of metal plates or other structural members, the space is large, the motion process is limited by other components in the antenna, and the switching also reduces the motion precision of the phase shifter, so that the accuracy of the electrical downtilt 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 has large occupied space, limited movement and low precision of a phase shifter and inaccurate adjustment of an electric downtilt angle of the antenna, realizing flexible setting of the position of the phase shifter, reducing occupied space, increasing the movement space of the phase shifter, accurately controlling the movement of the phase shifter and improving the adjustment precision of the electric downtilt angle of the antenna.
The invention provides a transmission phase shift system, comprising:
a phase shifter component comprising a phase shifter, the phase shifter comprising a phase shifter medium and a phase shifter cavity;
the power conversion component is connected with two ends of the phase shifter medium through cables respectively;
the power conversion component is used for applying a pulling force to one end of the phase shifter medium, pulling the phase shifter medium out of the phase shifter cavity, or applying a pulling force to the other end of the phase shifter medium, and pulling the phase shifter medium into the phase shifter cavity.
According to the present invention, there is provided a transmission phase shift system, the power conversion part including:
the gear pair comprises two gears which are meshed with each other;
a power input shaft to which one of the two gears is fixed;
the other gear of the two gears is fixed on the transmission shaft, and a cable connected with the 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 moves to one direction under the drive of the power input shaft, and pulling the phase shifter medium out of the phase shifter cavity; when moving to the other direction, applying a pulling force to the other end of the phase shifter medium, and pulling 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 the reflecting plate of the antenna.
According to the transmission phase shifting system provided by the invention, the power conversion part further comprises a transmission pulley,
the transmission pulley is assembled on the transmission shaft;
the cables connected with the two ends of the phase shifter medium are wound on the transmission pulley;
and two ends of the transmission shaft are assembled on the transmission 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 present invention, there is provided a transmission phase shifting system, the phase shifter element further comprising two phase shifter pulleys;
the two phase shifter pulleys are respectively positioned at two sides of the phase shifter;
the cable connected with one end of the phase shifter medium is wound on a phase shifter pulley on one side of the phase shifter, and the cable connected with the other end of the phase shifter medium is wound on the power conversion component after being wound on the phase shifter pulley on the other side of the phase shifter.
According to the transmission phase shifting system provided by the invention, the phase shifter further 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 sites;
the power conversion part is connected with the two connecting pieces through a cable.
The transmission phase shifting system provided by the invention 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 view window is formed in the opposite side of the end cover, and the scale penetrates through the view 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 shifting 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 the reflecting plate of the antenna;
the cable is wound on the scale supporting pulley.
The invention also provides an antenna, which comprises any transmission phase shifting system.
According to the antenna provided by the invention, the antenna further comprises a plurality of radiation units, and the transmission phase shifting systems are arranged;
each transmission phase shifting system is connected to a different one of said radiating elements.
According to the transmission phase shifting system and the antenna, the phase shifter component and the power conversion component are communicated through the cable, so that the phase shifter component 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 invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a transmission phase shifting system provided by the present invention;
FIG. 2 is a schematic diagram of the structure of a phase shifter element in the transmission phase shifting system provided by the present invention;
FIG. 3 is a schematic diagram of the power conversion component of the transmission phase shifting system provided by the invention;
fig. 4 is a schematic structural diagram of a scale component in the transmission phase shifting system provided by the invention.
1: a power conversion part; 2: a phase shifter section; 3: a scale member; 4: a cable; 11: a power input shaft; 12: a gear pair; 13: a transmission shaft; 14: a transmission shaft support; 15: a transmission pulley; 21: a phase shifter medium; 22: a connecting piece; 23: a phase shifter pulley; 24: a phase shifter cavity; 31: a scale supporting pulley; 32: a ruler; 33: an end cap; 34: and a reflecting plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A transmission phase shifting system of the present invention is described below in conjunction with fig. 1 and 2, comprising:
a phase shifter element 2, the phase shifter element 2 comprising a phase shifter medium 21 and a phase shifter cavity 24;
a power conversion part 1, wherein the power conversion part 1 is respectively connected with two ends of the phase shifter medium 21 through a cable 4;
optionally, the cable 4 is a flexible chain and the phase shifter medium 21 is of unitary design. The two 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 used for applying a pulling force to one end of the phase shifter medium 21, pulling the phase shifter medium 21 out of the phase shifter cavity 24, or applying a pulling force to the other end of the phase shifter medium 21, pulling 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 medium 21, the pcb circuit board is located between the two pieces of phase shifter medium 21, and the phase shifter medium 21 is slidable within 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 motion process of the power conversion component 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.
According to the embodiment, the phase shifter component and the power conversion component are communicated through the cable, the phase shifter component 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.
On the basis of the above-described embodiment, as shown in fig. 3, the power conversion member 1 in the present embodiment includes:
a gear pair 12 including two gears, the two gears being meshed with each other;
alternatively, the gear pair 12 is a bevel gear pair.
A power input shaft 11 to which one of the two gears is fixed;
alternatively, one end of the power input shaft 11 is connected to the engine, and the other end is fixed with a gear at the top end. The power input shaft 11 rotates by the engine.
A transmission shaft 13, the other gear of the two gears is fixed on the transmission shaft 13, and a cable connecting two ends of the phase shifter medium is wound on the transmission shaft 13;
a gear is fixed to the top end of the transmission shaft 13. Since the two gears in 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 from the power input shaft 11 into a direction, and combines with the transmission shaft 13 to realize power conversion.
Since the cable 4 connecting both ends of the phase shifter medium 21 is wound around the transmission shaft 13. When the transmission shaft 13 rotates, the phase shifter medium 21 is pulled to move.
The transmission shaft 13 is used for applying a pulling force to one end of the phase shifter medium 21 when being 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 in the other direction, pulling force is applied to the other end of the phase shifter medium 21, and the phase shifter medium 21 is pulled into the phase shifter cavity 24;
by changing the direction in which the power input shaft 11 inputs the power, the moving direction of the phase shifter medium 21 is changed, thereby realizing fine adjustment of the movement of the phase shifter medium 21.
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 on one plane of the reflector plate and the radiating element of the antenna is fixed on the other plane of the reflector plate.
The drive shaft support 14 comprises a base and two support portions, the distance between which is smaller than the length of the drive shaft. The base is fixed on the reflecting plate through the screw, and one end of the supporting part is fixed on the base, and the other end is used for supporting the transmission shaft 13.
On the basis of the above-described embodiment, as shown in fig. 3, the power conversion member further includes a transmission pulley 15, the transmission pulley 15 being fitted on the transmission shaft 13;
a cable connecting both ends of the phase shifter medium 21 is wound around the transmission pulley 15;
the two 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. Through which the drive shaft 13 passes, the drive pulley 15 being of integral design with the drive shaft.
On the basis of the above embodiment, as shown in fig. 3, in this embodiment, two ends of the transmission shaft are assembled on the transmission shaft support in a clamping or shaft hole matching manner.
Optionally, a U-shaped opening is provided at the top end of the drive shaft support 14 for supporting the drive shaft 13. The two 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 pass through the corresponding through holes and are assembled on the transmission shaft support 14.
On the basis of the above embodiments, as shown in fig. 2, the phase shifter element 2 in this embodiment further includes two phase shifter pulleys 23;
the two phase shifter pulleys 23 are respectively positioned at two sides of the phase shifter;
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 connection members 22;
holes are formed in 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 holes;
optionally, holes are also provided on the two connecting members 22, and after the holes on the connecting members 22 are aligned with the holes on the two ends of the phase shifter medium 21, screws are inserted into the holes, and the inserted ends of the screws are fixed by using bolts.
The power conversion member 1 is connected to the two connection members 22 via a cable 4.
The cable 4 is connected to the connection 22 by means of phase shifter pulleys 23 placed on both sides of the phase shifter.
On the basis of the above embodiments, as shown in fig. 4, the present embodiment further includes a scale member 3, the scale member 3 including 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 view window is formed on the opposite side of the end cover 33, and the scale penetrates through the view 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 connected to a cable connected to the other end of the phase shifter medium 21 and then wound around the power conversion member 1.
Optionally, an end cap 33 is fixed to the inside of 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 are provided with viewing windows, which is not limited in this embodiment. The scale 32 passes through a 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 has graduations thereon. Both ends of the scale 32 are connected to the cable 4. The cables 4 connected to both ends of the phase shifter medium 21 are respectively connected to both ends of the scale 32 to enclose a closed loop. The cable is wound around the transmission pulley 15 of the power conversion member 1.
When the phase shifter medium 21 is completely located in the phase shifter cavity 24, the cables connecting the two ends of the phase shifter medium 21 are in tension, and the scale on the scale 32 is 0.
In this embodiment, through the cable communication among the scale, the phase shifter component and the power conversion component, the phase shifter component and the scale can be freely placed on one side of the reflecting plate 34, 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.
On the basis of the above embodiments, as shown in fig. 4, the scale member 3 in this 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 the 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 member 2 at one end thereof after passing around the scale supporting pulley 31, and to the other end of the phase shifter member 2 via the power conversion member 1.
The antenna provided by the invention is described below, and the antenna described below and the transmission phase shifting system described above can be referred to correspondingly.
The present embodiment provides an antenna, including the transmission phase shift system in any one of the above embodiments.
The present embodiment is not limited to other structures of the antenna.
According to the embodiment, the phase shifter component and the power conversion component are communicated through the cable, the phase shifter component 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.
On the basis of the above embodiment, the present embodiment further includes a radiation unit, where the number of the transmission phase shifting systems is plural;
each transmission phase shifting system is connected to a different one of said radiating elements.
According to the embodiment, the plurality of transmission phase shifting systems are connected with different radiation units, so that the downward inclination angles of the beams emitted by the different radiation units are independently adjusted, the expandability is realized, the requirement of multipath transmission phase shifting can be met, and the method is suitable for the design of complex antennas.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A transmission phase shifting system, comprising:
a phase shifter component comprising a phase shifter, the phase shifter comprising a phase shifter medium and a phase shifter cavity;
the power conversion component is connected with two ends of the phase shifter medium through cables respectively;
the power conversion component is used for applying a pulling force to one end of the phase shifter medium, pulling the phase shifter medium out of the phase shifter cavity, or applying a pulling force to the other end of the phase shifter medium, and pulling the phase shifter medium into the phase shifter cavity;
the power conversion member includes:
the gear pair comprises two gears which are meshed with each other;
a power input shaft to which one of the two gears is fixed;
the other gear of the two gears is fixed on the transmission shaft, and a cable connected with the 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 moves to one direction under the drive of the power input shaft, and pulling the phase shifter medium out of the phase shifter cavity; when moving to the other direction, applying a pulling force to the other end of the phase shifter medium, and pulling the phase shifter medium into the phase shifter cavity;
the transmission shaft support is used for supporting the transmission shaft and is fixed on the reflecting plate of the antenna;
the power conversion member further includes a transmission pulley,
the transmission pulley is assembled on the transmission shaft;
the cables connected with the two ends of the phase shifter medium are wound on the transmission pulley;
the two ends of the transmission shaft are assembled on the transmission shaft support;
the two ends of the transmission shaft are assembled on the transmission shaft support in a clamping or shaft hole matching mode.
2. The transmission phase shifting system of claim 1, wherein the phase shifter element further comprises two phase shifter pulleys;
the two phase shifter pulleys are respectively positioned at two sides of the phase shifter;
the cable connected with one end of the phase shifter medium is wound on a phase shifter pulley on one side of the phase shifter, and the cable connected with the other end of the phase shifter medium is wound on the power conversion component after being wound on the phase shifter pulley on the other side of the phase shifter.
3. The transmission phase shifting system of claim 1, wherein the phase shifter further comprises two connectors;
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 sites;
the power conversion part is connected with the two connecting pieces through a cable.
4. The transmission phase shifting system of claim 1, 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 view window is formed in the opposite side of the end cover, and the scale penetrates through the view 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.
5. The transmission phase shift system according to claim 4, 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 the reflecting plate of the antenna;
the cable is wound on the scale supporting pulley.
6. An antenna comprising a driven phase shifting system according to any one of claims 1-5.
7. The antenna of claim 6, further comprising a radiating element, the number of driven phase shifting systems being a plurality;
each transmission phase shifting system is connected to a different one of said radiating elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN202210613382.XA CN114976535B (en) | 2022-05-31 | 2022-05-31 | Transmission phase-shifting system and antenna |
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| Publication Number | Publication Date |
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| CN114976535A CN114976535A (en) | 2022-08-30 |
| CN114976535B true CN114976535B (en) | 2023-12-05 |
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| CN202210613382.XA Active CN114976535B (en) | 2022-05-31 | 2022-05-31 | Transmission phase-shifting system and antenna |
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