CN214013169U - Phase shifter, phase-shifting transmission system and antenna - Google Patents

Abstract

The utility model provides a move looks ware, move looks transmission system and antenna, its technical scheme main points move looks ware and include cavity, dielectric plate and circuit board install in the cavity, seted up on the lateral wall of cavity and dodge the opening, correspond on the dielectric plate lateral wall dodge the opening and form the driving rack, the driving rack is used for with external in the drive gear meshing of dodging the opening part and link the relative circuit board of dielectric plate and remove. Through seting up on the cavity lateral wall and dodging the opening, the drive rack accessible of dielectric plate dodges the opening and the outer drive gear meshing of cavity to make the dielectric plate can move relative circuit board, realize shifting the phase and adjust, compare in current phase shifter structure, need not to set up the pull rod, reduced the space for shifting the phase accommodation process reservation greatly, make antenna element more intensive, be favorable to the miniaturization of antenna.

Description

Phase shifter, phase-shifting transmission system and antenna

Technical Field

The utility model relates to a remove basic station antenna technical field, especially relate to a move looks ware, move looks transmission system and antenna.

Background

In the coverage of a mobile communication network, an electrically-adjusted base station antenna is one of key equipment of a coverage network, a phase shifter is the most core component of the electrically-adjusted base station antenna, the performance of the phase shifter directly determines the performance of the electrically-adjusted antenna, and the coverage quality of the network is further influenced, so that the importance of the phase shifter in the field of mobile base station antennas is self-evident.

The existing phase shifter and its transmission system are usually external transmission interfaces, i.e. the phase shifter and the transmission interface are outside the phase shifter, and this kind of structure usually needs more parts to realize the functions of transmission and phase shift. Referring to fig. 1, the phase shifter and the transmission system thereof comprise a driving device 100, a driving connection block 200, a transmission screw 300, a transmission rod 400, a stop block 500 and a phase shifter 600, wherein the driving device 100 drives the transmission screw 300 to rotate, the transmission screw 300 drives the connection block 200 to linearly move, the driving connection block 200 drives the transmission rod 400 to linearly move, and the transmission rod 400 drives a medium block of the phase shifter 600 to achieve the purpose of phase shifting of the phase shifter, wherein different phase shifting intervals can be realized by setting the axial position of the stop block 500 on the transmission screw 300.

However, the phase shifter and the transmission system thereof require more parts, and the external transmission interface causes the transmission system to occupy more space, which is not favorable for intensification of the antenna component of the base station. With the rapid development of mobile communication, base stations in cities are distributed more and more densely, the resource of the stations is less and less, and a multi-band base station antenna becomes the mainstream, so that more parts need to be integrated in the limited internal space of the antenna. With the development of the fifth generation communication system, the phase shifting technology is more and more widely applied to the 5G large-scale array antenna, the 5G large-scale antenna is mainly a distributed phase shifter in the application of the phase shifter, and each sub-array unit needs one phase shifter, which requires the phase shifter and the transmission system thereof to be highly intensive to adapt to the compact space inside the 5G large-scale antenna, while the existing phase shifter and transmission system obviously have the problem of large occupied space.

SUMMERY OF THE UTILITY MODEL

The first and second objects of the present invention are to provide a phase shifter capable of reducing the occupied space and making the antenna more compact.

Another object of the present invention is to provide a phase shift transmission system using the above phase shifter.

Another object of the present invention is to provide an antenna using the above phase shift transmission system.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a move looks ware, includes cavity, dielectric-slab and circuit board install in the cavity, seted up on the lateral wall of cavity and dodged the opening, correspond on the dielectric-slab lateral wall dodge the opening and form the transmission rack, the transmission rack is used for with external drive gear meshing and the relative circuit board movement of linkage dielectric-slab in dodging the opening part.

Further setting: the medium plates comprise a driving medium plate and a driven medium plate, the driving medium plate and the driven medium plate are respectively arranged on two sides of the circuit board, the transmission rack is formed on the side wall of the driving medium plate, and a connecting piece for enabling the driving medium plate and the driven medium plate to be linked is arranged between the driving medium plate and the driven medium plate.

Further setting: the circuit board is provided with a guide hole for the connecting piece to pass through and slide along the circuit board.

The utility model also provides a phase-shifting transmission system, still include drive mechanism and move the looks ware as above, drive mechanism including external in dodge the opening part and with the drive gear of transmission rack toothing, drive gear by thereby the drive arrangement drive rotates the relative circuit board of linkage medium board and removes.

Further setting: the phase-shifting transmission system further comprises a transmission worm and a driving gear, the driving gear and the transmission worm are meshed with each other, the driving gear and the transmission gear rotate coaxially, and the transmission worm is connected with an output shaft of the driving device.

Further setting: the phase-shifting transmission system further comprises a first clamping seat capable of being fixed on the outer wall of the cavity, and the driving gear, the transmission gear and the transmission worm are respectively and rotatably connected to the first clamping seat.

Further setting: the outer wall of the cavity is provided with a clamping hole, and the first clamping seat is provided with an elastic buckle which can be clamped into the clamping hole to fix the first clamping seat and the cavity.

Further setting: the phase shifters are distributed in parallel, a plurality of groups of transmission gears are arranged corresponding to the phase shifters, each transmission mechanism comprises a transmission rod, and the transmission rods penetrate through the driving gears and the plurality of groups of transmission gears to enable the driving gears to be linked with the plurality of groups of transmission gears.

Further setting: the phase-shifting transmission system further comprises a connecting seat, a second clamping seat and a plurality of third clamping seats, the connecting seat is arranged on the phase shifters in a spanning mode and can be fixed with the reflecting plates, the driving gear, the transmission worm and one group of transmission gears are rotatably connected into the second clamping seat, the other groups of transmission gears are installed in the third clamping seats in a one-to-one correspondence mode, and the second clamping seat and the third clamping seats are respectively fixed with the connecting seat.

The utility model also provides an antenna, including foretell phase shift transmission system.

Compared with the prior art, the utility model discloses a scheme has following advantage:

1. the utility model relates to an among the looks shifter, dodge the opening through seting up on the cavity lateral wall, the drive rack accessible of dielectric plate in the cavity dodges the opening and the outer drive gear meshing of cavity to make dielectric plate circuit board relatively move, realize shifting the phase and adjust, compare in current looks shifter structure, need not to set up the pull rod, reduced greatly for shifting the space that the accommodation process reserved, make antenna element intensification more, be favorable to the miniaturization of antenna.

2. The utility model relates to an among the phase-shifting transmission system, with the help of transmission worm, drive gear and drive gear's drive mechanism, drive arrangement can order about the relative circuit board sliding adjustment of dielectric plate to realize adjusting, adopted such drive mechanism, saved phase-shifting transmission system's occupation space widely, move looks ware and controlling means lay compacter, be favorable to the miniaturization of antenna.

3. The utility model relates to an among the phase-shifting transmission system, adopt a plurality of drive gear of drive arrangement accessible drive mechanism linkage simultaneously to rotate to carry out synchro adjustment to a plurality of looks phasers, need not to set up many sets of drive arrangement, further saved and moved the shared space of transmission system mutually, made antenna element intensification more.

4. The utility model relates to an among the antenna, through adopting foretell phase shift transmission system, compare in current drive mode, the space that drive mechanism occupy that has significantly reduced, antenna element is intensive more, and the antenna is whole more miniaturized.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a phase shifter and its transmission system according to an embodiment of the prior art;

fig. 2 is a schematic structural diagram of an antenna according to an embodiment of the present invention;

fig. 3 is an exploded view of an antenna according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a cavity according to an embodiment of the present invention;

fig. 5 is an exploded view of the driving dielectric plate and the driven dielectric plate according to an embodiment of the present invention;

fig. 6 is an exploded schematic view of the first card holder, the transmission gear, the driving gear and the transmission worm according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an antenna according to another embodiment of the present invention;

fig. 8 is an exploded view of an antenna according to another embodiment of the present invention;

fig. 9 is an exploded view of a phase shifter according to another embodiment of the present invention;

fig. 10 is a partially exploded schematic view of a transmission mechanism according to another embodiment of the present invention;

fig. 11 is an exploded view of the second cartridge, the transmission gear, the driving gear and the transmission worm according to another embodiment of the present invention;

fig. 12 is an exploded view of a third cartridge and a transmission gear according to another embodiment of the present invention;

fig. 13 is an exploded view of a third cartridge and a transmission gear according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 2 to 6, the utility model provides an antenna, including moving transmission system and reflecting plate 1 mutually, move transmission system and install on reflecting plate 1 mutually, move transmission system mutually including moving looks ware 2, drive arrangement 3 and drive mechanism 4. In this embodiment, the phase shifter 2 includes a cavity 21, a dielectric plate and a circuit board 22, in this embodiment, the circuit board 22 is a power distribution network, the dielectric plate and the circuit board 22 are installed in the cavity 21, an avoiding opening 211 is formed in a side wall of the cavity 21, a transmission rack 231 is formed on the side wall of the dielectric plate corresponding to the avoiding opening 211, the transmission mechanism 4 includes a transmission gear 41 externally connected to the avoiding opening 211 and engaged with the transmission rack 231, and the transmission gear 41 is driven by the driving device 3 to rotate so as to link the dielectric plate to move relative to the circuit board 22.

Through seting up on the cavity 21 lateral wall and dodging opening 211, the drive rack 231 accessible of dielectric plate in the cavity 21 dodges opening 211 and the outer drive gear 41 meshing of cavity 21 to make the dielectric plate move relative circuit board 22, realize shifting the phase and adjust, compare in current phase shifter 2 structure, need not to set up the pull rod, reduced greatly for shifting the space that the accommodation process reserved, make antenna element intensification more, be favorable to the miniaturization of antenna.

In this embodiment, the dielectric plates include a driving dielectric plate 23 and a driven dielectric plate 24, the driving dielectric plate 23 and the driven dielectric plate 24 are respectively disposed on two sides of the circuit board 22, the driving rack 231 is formed on the side wall of the driving dielectric plate 23, and a connecting member for linking the driving dielectric plate 23 and the driven dielectric plate 24 is disposed between the two dielectric plates.

Preferably, the circuit board 22 is provided with a guide hole 221 through which the connector can pass and slide along the circuit board 22, the guide hole 221 is long, and the connector can move along the guide hole 221. In this embodiment, the two ends of the driven medium plate 24 are respectively provided with a fastening hole 241, the connecting member is integrally provided with a connecting fastening 232 on the driving medium plate 23, and the connecting fastening 232 can pass through the guide hole 221 and then be fastened and fixed with the fastening hole 241. In other embodiments, the positions of the connecting clip 232 and the clip hole 241 can be reversed. In other embodiments, the driving medium plate 23 and the driven medium plate 24 can be interlocked with each other by screws.

In this embodiment, the driving rack 231 is formed on the side wall of the driving medium plate 23 and serves as a built-in driving interface, and the driven medium plate 24 can be linked with the driven medium plate 24 by means of a connecting member, and the transmission gear 41 does not need to be engaged with both the driving medium plate 23 and the driven medium plate 24, so that the volume or the number of the transmission gear 41 is reduced, the processing cost is reduced, the consistency of the driving medium plate 23 and the driven medium plate 24 during movement is improved, and the phase shifting accuracy is improved.

Adopt the joint cooperation structure of connecting buckle 232 with buckle hole 241, press from both sides initiative dielectric-slab 23 and driven dielectric-slab 24 and circuit board 22 three and paste together to fix inside cavity 21, realized initiative dielectric-slab 23, driven dielectric-slab 24 and circuit board 22's fast assembly, need not plus unnecessary part moreover, it is comparatively convenient to install, has promoted the packaging efficiency.

Further, an avoiding notch 242 corresponding to the transmission rack 231 is formed in one side, close to the transmission rack 231, of the driven medium plate 24, and the avoiding notch 242 is used for avoiding the transmission gear 41, so that interference influence on transmission of the transmission gear 41 and the transmission rack 231 is avoided.

Preferably, the avoiding opening 211 is formed in the middle of the cavity 21, and the transmission rack 231 is correspondingly formed in the middle side wall of the active medium plate 23. Through the arrangement, when the transmission gear 41 is linked with the driving medium plate 23 to move, the stress of the driving medium plate 23 is more uniform, and the reliability and the stability of transmission are improved.

In this embodiment, two sub-cavities are formed in the cavity 21, a circuit board 22, a driving medium plate 23 and a driven medium plate 24 are arranged in each sub-cavity, and the side walls of the two sub-cavities are correspondingly provided with the avoiding openings 211.

Further, the phase shifter 2 further includes a supporting block 25, where the supporting block 25 is used to fix the phase shifter 2 on the antenna reflection plate 1, and in this embodiment, two ends of the phase shifter 2 are respectively provided with one supporting block 25.

Further, the transmission mechanism 4 further comprises a transmission worm 42 and a driving gear 43, the driving gear 43 and the transmission worm 42 are meshed with each other, the driving gear 43 and the transmission gear 41 rotate coaxially, and the transmission worm 42 is connected with the output shaft 31 of the driving device 3. In this embodiment, the driving device 3 is a motor, and the output shaft 31 of the driving device 3 is in a rotary transmission mode. Further, the transmission mechanism 4 further includes a first clamping seat 44 capable of being fixed on the outer wall of the cavity 21, and the driving gear 43, the transmission gear 41 and the transmission worm 42 are respectively rotatably connected to the first clamping seat 44, in this embodiment, the output shaft 31 of the driving device 3 extends along the length direction of the cavity 21. In this embodiment, the driving gear 43 may be a worm gear matched with the transmission worm, or may be a helical gear matched with the transmission worm 42.

Through the setting of above-mentioned structure, adopt the linkage mode of transmission worm 42 and drive gear 43, the output power of transmission drive arrangement 3, it removes to order about the medium plate, the transmission process is comparatively stable, it is comparatively accurate to shift the phase and adjust, and adopt the shared space of each part of this transmission structure less, be convenient for arrange the installation, reduce the equipment degree of difficulty, it is higher to make the intensification degree between each part, in addition, drive arrangement 3's output shaft 31 distributes along cavity 21 length direction, also be favorable to arranging of drive arrangement 3 and looks ware 2, make each part compacter.

In this embodiment, the first clamping seat 44 is in a shell shape, and three first gear grooves 441 are formed on one side of the first clamping seat 44, wherein the first gear groove 441 located in the middle is used for installing the driving gear 43, the two first gear grooves 441 located at the top and the bottom are respectively used for installing two transmission gears 41, and the two transmission gears 41 are respectively and correspondingly engaged with the transmission racks 231 on the two driving medium plates 23 in the cavity 21. The top wall and the bottom wall of the first clamping seat 44 are correspondingly provided with first pin holes 442, the transmission gear 41 and the driving gear 43 are fixed with the first clamping seat 44 by means of a plug pin 45 and a stop pin 46, and the plug pin 45 penetrates through the first pin holes 442, the transmission gear 41 and the driving gear 43 and is matched with the stop pin 46. The shape of the plug 45 includes, but is not limited to, a square, a hexagon, and the like.

In this embodiment, the first clamping seat 44 is provided with a first shaft hole 443, through which the driving worm 42 can penetrate, the driving worm 42 includes a first rotating shaft 421 located at the front end and a second rotating shaft 422 located at the rear end, the diameter of the first rotating shaft 421 is smaller than the diameter of the second rotating shaft 422, the diameters of two first shaft holes 443 of the first clamping seat 44 are respectively matched with the diameters of the first rotating shaft 421 and the second rotating shaft 422, a position limiting shaft 423 is provided at a position of the driving worm 42 close to the first rotating shaft 421, the position limiting shaft 423 is larger than the first rotating shaft 421 and smaller than the second rotating shaft 422, and the position limiting shaft 423 abuts against an inner wall of the first clamping seat 44 and limits the axial movement of the driving worm 42 together with the output shaft 31 of the driving device 3.

Further, the first clamping seat 44 extends around the opening of the first gear groove 441 to form four extending portions 444, the four extending portions 444 are respectively provided with an elastic buckle 445, the top wall, the bottom wall and the side wall of the cavity 21 are provided with four clamping holes 212 around the avoiding opening 211, and the four elastic buckles 445 can be correspondingly clamped into the four clamping holes 212 respectively to fix the first clamping seat 44 and the cavity 21. Through the structural arrangement, the first clamping seat 44 and the cavity 21 are convenient to assemble and have high structural reliability, the first clamping seat 44 can enable the transmission gear 41 and the transmission rack 231 to keep high meshing degree, and the phase shifting stability of the phase shifter 2 is improved.

In the present embodiment, the phase shifting transmission system is provided with only one phase shifter 2, as shown in fig. 7 to 13, in another embodiment, the phase shifting transmission system includes a plurality of phase shifters 2, the number of the phase shifters 2 is at least four, in the present embodiment, the number of the phase shifters 2 is preferably eight, wherein the driving device 3 is provided with only one, and eight phase shifters 2 are driven by only one driving device 3 for synchronous phase shifting adjustment, and the installation distance of the phase shifters 2 is determined according to the column distance of the antenna array.

In this embodiment, the transmission gears 41 are provided with a plurality of sets corresponding to the phase shifter 2, and the transmission structure includes a transmission rod 47, and the transmission rod 47 penetrates through the driving gear 43 and the plurality of sets of transmission gears 41 to enable the driving gear 43 to be linked with the plurality of sets of transmission gears 41.

Through such setting, only can drive eight phase shifters 2 simultaneously through a drive arrangement 3 and shift the phase and adjust, need not to set up many sets of drive arrangement 3, further saved and shifted the shared space of transmission system, make the antenna element intensive more, also simplified a plurality of phase shifters 2 in addition and shifted the process of adjusting, improve regulation efficiency.

In the present exemplary embodiment, the escape openings 211 of the phase shifters 2 face away from the reflector plate 1, and the transmission levers 47 are perpendicular to the eight phase shifters 2. The phase-shifting transmission system further comprises a connecting base 5, a second clamping base 48 and a plurality of third clamping bases 49, wherein the connecting base 5 is arranged on the phase shifters 2 in a spanning mode and can be fixed with the reflection plate 1, the driving gear 43, the transmission worm 42 and one group of transmission gears 41 are rotatably connected into the second clamping base 48, the other groups of transmission gears 41 are arranged in the third clamping bases 49 in a one-to-one correspondence mode, and the second clamping base 48 and the third clamping base 49 are respectively fixed with the connecting base 5.

In this embodiment, the reflection plate 1 is provided with three support seats 6, two of the support seats 6 are located below two ends of the connection seat 5, the other support seats 6 are installed below the middle portion of the connection seat 5, the support seats 6 are fixed to the reflection plate 1 through screws, and the connection seat 5 is erected on the three support seats 6 and fixed through screws.

In this embodiment, there are one second card holder 48 and 7 third card holders 49, and eight avoiding holes 51 are formed on the top surface of the connecting socket 5 corresponding to the second card holder 48 and the third card holders 49. The bottom of the second clamping seat 48 is provided with three second gear grooves 481, wherein the two second gear grooves 481 at the two ends are used for installing the transmission gear 41, and the second gear groove 481 at the middle part is used for installing the driving gear 43. A second shaft hole 482 through which the driving worm 42 passes is formed in the side wall of the second clamping seat 48, and the second shaft hole 482 in the second clamping seat 48 is similar to the shaft hole in the first clamping seat 44, is matched with the first rotating shaft 421 and the second rotating shaft 422 in the driving worm 42, and can be in clamping fit with the limiting shaft 423. The transmission gear 41 and the driving gear 43 are also fixed to each other by a latch 45 and a stopper pin 46 and a second card holder 48.

Preferably, a limiting flange 483 is further formed on the outer wall of the second clamping seat 48 in a protruding manner, and the limiting flange 483 can abut against the top surface of the connecting seat 5 when the second clamping seat 48 passes through the avoiding hole 51 on the connecting seat 5, so that a limiting effect is provided for the assembly of the second clamping seat 48 and the connecting seat 5, the downward movement of the second clamping seat 48 is limited, and the assembly reliability is improved.

Further, the third clamping seat 49 is provided with two third gear grooves 491 for the transmission gear 41 to be embedded in. Two third clamping seats 49 at two ends of the connecting seat 5 are fixedly mounted with the connecting seat 5 through screws, the top surfaces of the other third clamping seats 49 are provided with positioning protrusions 492, and the connecting seat 5 is provided with 5 positioning holes 52 through which the positioning protrusions 492 can pass.

Furthermore, hooks 493 are arranged on two sides of the top surface of the third clamping seat 49, and the hooks 493 can pass through the avoiding hole 51 on the connecting seat 5 and are hooked and fixed in the avoiding hole 51. Make third block 49 and connecting seat 5 joint each other with the help of pothook 493 to improve the assembly reliability between them, in addition, combine the cooperation structure of location arch 492 and locating hole 52, further improved the stability of being connected of third block 49 and connecting seat 5, difficult emergence dislocation is removed, thereby ensures driven stability.

To sum up, the utility model discloses a scheme has following advantage:

1. the utility model relates to a move in looks ware 2, dodge opening 211 through offering on the lateral wall of cavity 21, the drive rack 231 accessible of dielectric plate dodges opening 211 and the meshing of the outer drive gear 41 of cavity 21, thereby make dielectric plate circuit board 22 relatively move, realize shifting the phase and adjust, compare in current phase shifter 2 structure, need not to set up the pull rod, reduced the space of reserving for shifting the phase accommodation process greatly, make antenna element more intensive, be favorable to the miniaturization of antenna.

2. The utility model relates to an among the phase-shifting transmission system, with the help of drive worm 42, drive gear 43 and drive gear 41's drive mechanism 4, drive arrangement 3 can order about the relative circuit board 22 slide adjusting of dielectric plate to realize adjusting, adopt such drive mechanism 4, saved phase-shifting transmission system's occupation space widely, move looks ware 2 and controlling means lay compacter, be favorable to the miniaturization of antenna.

3. The utility model relates to an among the phase-shifting transmission system, adopt a plurality of drive gear 41 of 3 accessible drive mechanism 4 simultaneous linkages of a drive arrangement to carry out the synchro-regulation to a plurality of looks wares 2, need not to set up many sets of drive arrangement 3, further saved and moved the shared space of transmission system phase, make antenna element intensification more.

4. The utility model relates to an among the antenna, through adopting foretell phase shift transmission system, compare in current drive mode, the space that drive mechanism 4 took has significantly reduced, and antenna element is intensive more, and the antenna is whole more miniaturized.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a move looks ware, includes cavity, dielectric plate and circuit board install in the cavity, characterized by: an avoiding opening is formed in the side wall of the cavity, a transmission rack is formed in the side wall of the dielectric plate corresponding to the avoiding opening, and the transmission rack is used for being meshed with a transmission gear externally connected to the avoiding opening and linking the dielectric plate to move relative to the circuit board.

2. The phase shifter as recited in claim 1, wherein: the medium plates comprise a driving medium plate and a driven medium plate, the driving medium plate and the driven medium plate are respectively arranged on two sides of the circuit board, the transmission rack is formed on the side wall of the driving medium plate, and a connecting piece for enabling the driving medium plate and the driven medium plate to be linked is arranged between the driving medium plate and the driven medium plate.

3. The phase shifter as recited in claim 2, wherein: the circuit board is provided with a guide hole for the connecting piece to pass through and slide along the circuit board.

4. A phase-shifting transmission system comprises a driving device, and is characterized in that: the phase shifter comprises a transmission mechanism and a phase shifter according to any one of claims 1 to 3, wherein the transmission mechanism comprises a transmission gear which is externally connected with the avoiding opening and meshed with a transmission rack, and the transmission gear is driven by the driving device to rotate so as to link the medium plate to move relative to the circuit board.

5. The phase-shifting transmission system according to claim 4, wherein: still include transmission worm and drive gear, drive gear with transmission worm intermeshing, drive gear and the coaxial rotation of drive gear, transmission worm and drive arrangement's output shaft.

6. The phase-shifting transmission system according to claim 5, wherein: the cavity body is provided with a cavity, and the cavity body is provided with a driving gear, a transmission gear and a transmission worm.

7. The phase-shifting transmission system according to claim 6, wherein: the outer wall of the cavity is provided with a clamping hole, and the first clamping seat is provided with an elastic buckle which can be clamped into the clamping hole to fix the first clamping seat and the cavity.

8. The phase-shifting transmission system according to claim 5, wherein: the phase shifters are distributed in parallel, a plurality of groups of transmission gears are arranged corresponding to the phase shifters, each transmission mechanism comprises a transmission rod, and the transmission rods penetrate through the driving gears and the plurality of groups of transmission gears to enable the driving gears to be linked with the plurality of groups of transmission gears.

9. The phase-shifting transmission system according to claim 8, wherein: the phase shifter comprises a phase shifter body, a plurality of phase shifters, a plurality of reflecting plates, a plurality of driving gears, a plurality of driving worms and a plurality of transmission gears, and is characterized by further comprising connecting seats, a second clamping seat and a plurality of third clamping seats, wherein the connecting seats are arranged on the phase shifters in a spanning mode and can be fixed with the reflecting plates, the driving gears, the driving worms and one group of the transmission gears are rotatably connected into the second clamping seat, the other groups of the transmission gears are arranged in the third clamping seats in a one-to-one correspondence mode, and the second clamping seat and the third clamping seats are respectively fixed with the connecting seats.

10. An antenna, characterized by: comprising a phase-shifting transmission system according to any one of claims 4 to 9.

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