CN111585025B

CN111585025B - Phase shifter and base station antenna

Info

Publication number: CN111585025B
Application number: CN202010431645.6A
Authority: CN
Inventors: 潘利君; 范雄辉; 吴晗
Original assignee: CICT Mobile Communication Technology Co Ltd
Current assignee: CICT Mobile Communication Technology Co Ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-08-17
Anticipated expiration: 2040-05-20
Also published as: CN111585025A

Abstract

The invention relates to the field of mobile communication, and discloses a phase shifter and a base station antenna, wherein the phase shifter comprises a phase shifter component, the phase shifter component comprises a substrate and a sliding sheet rotationally connected to the substrate, the phase shifter component also comprises a fixing clamp, the fixing clamp is positioned on one side of the sliding sheet, which is far away from the substrate, the first end of the fixing clamp and the first end of the sliding sheet are integrally rotationally connected to the substrate, the second end of the fixing clamp is provided with a U-shaped groove, the side edge of the substrate is inserted into the U-shaped groove, the second end of the sliding sheet penetrates out of the bottom of the U-shaped groove, and a supporting structure is arranged between the fixing clamp and the sliding sheet. According to the phase shifter and the base station antenna provided by the invention, the U-shaped groove is formed in the second end of the fixing clamp to buckle the sliding sheet and the base plate together, so that the stability of the relative position between the sliding sheet and the base plate is favorably improved, the supporting structure is further arranged between the fixing clamp and the sliding sheet to press and limit the sliding sheet, the problem of uneven gap between the sliding sheet and the base plate in the rotation process is favorably avoided, and the stable performance of the phase shifter can be ensured.

Description

Phase shifter and base station antenna

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a phase shifter and a base station antenna.

Background

The communication base station antenna is used as the final control terminal of the mobile communication network to finally adjust the network provided for the user. The electric downtilt function of the electrically tunable antenna can meet the requirements that the same type antenna is in different use areas and different communication load areas, and the downtilt angle can be adjusted through remote control, so that larger network capacity is provided, communication interference is reduced, and labor cost is reduced.

The phase shifter is used as a key component of the electric tuning base station antenna, and can change the directional diagram of the antenna by changing the phase of a signal reaching the antenna, so that the continuous adjustment of the down dip of the antenna beam of the base station is realized. The phase shifters widely used at present mainly include dielectric phase shifters and physical phase shifters. The dielectric phase shifter has simple structure and good performance and is widely used in base station antennas; but the cavity has higher cost and larger occupied space, and has a plurality of limitations when in use; the physical phase shifter has the advantages of simple structure, convenient operation and low cost, and is widely used; the physical phase shifter rotates relative to the substrate through the sliding sheet to enable phase difference of each port to be changed, and therefore the antenna beam of the base station is declined.

However, the sliding sheet of the physical phase shifter has a problem of uneven gap or too large gap with the substrate in the sliding process, which causes a large variation in power amplitude of each port, and affects various performance indexes of the downtilt of the beam of the electrically tunable antenna.

Disclosure of Invention

The embodiment of the invention provides a phase shifter and a base station antenna, which are used for solving or partially solving the problem that the performance index is unstable due to uneven clearance or too large clearance between a sliding sheet of the conventional phase shifter and a substrate in the sliding process.

The invention provides a phase shifter, which comprises a phase shifter component, wherein the phase shifter component comprises a substrate and a sliding sheet rotationally connected to the substrate, the phase shifter component further comprises a fixing clamp, the fixing clamp is positioned on one side, away from the substrate, of the sliding sheet, the first end of the fixing clamp and the first end of the sliding sheet are integrally rotationally connected to the substrate, the second end of the fixing clamp is provided with a U-shaped groove, the side edge of the substrate is inserted into the U-shaped groove, the second end of the sliding sheet penetrates out of the groove bottom of the U-shaped groove, and a supporting structure is arranged between the fixing clamp and the sliding sheet.

On the basis of the scheme, the phase shifter assembly further comprises a rotating shaft, assembling holes are formed in the base plate, the first end of the sliding sheet and the first end of the fixing clamp respectively, and the rotating shaft penetrates through the base plate, the sliding sheet and the fixing clamp sequentially through the assembling holes; one end of the rotating shaft, which is close to the base plate, is provided with a blocking table, and the cross section of the blocking table is larger than the assembling hole; the pivot is close to the one end of fixation clamp can be dismantled and be connected with the fastener.

On the basis of the scheme, a neck section with a smaller section size is constructed on one side, away from the sliding sheet, of the fixing clamp of the rotating shaft, the fastening piece comprises a C clamp, and the C clamp is detachably connected with the neck section and the rotating shaft.

On the basis of the scheme, the C card is respectively connected with guide plates at two sides of the opening, and a guide opening gradually expanding from the opening of the C card is formed between the two guide plates; the upper surface of the guide plate is configured as a downwardly inclined guide surface.

On the basis of the scheme, the supporting structure comprises an elastic piece arranged on the fixing clamp and a first boss connected to one side, facing the sliding piece, of the elastic piece; the U-shaped groove is located the cell wall that the base plate deviates from one side of gleitbretter is in the orientation one side of base plate is connected with the second boss.

On the basis of the scheme, the first end of the fixing clamp is provided with an elastic sheet, and the assembling hole in the fixing clamp is formed in the middle of the elastic sheet.

On the basis of the scheme, the sliding sheet is connected with a pull rod of the antenna transmission device through an adapter, and the adapter comprises a first connecting part movably connected with the sliding sheet along the length direction of the sliding sheet and a second connecting part detachably connected with the pull rod.

On the basis of the scheme, the phase shifter assembly further comprises a support, and the support is detachably connected with the substrate; a plurality of phase shifter assemblies are stacked up and down, supports of any two adjacent layers of phase shifter assemblies are detachably connected, and a plurality of sliding sheets of the phase shifter assemblies are connected with the first connecting portion at the same time.

On the basis of the scheme, the first connecting part comprises two transfer arms which are oppositely arranged up and down, pin columns are respectively arranged on the upper side and the lower side of the first end of each transfer arm, a long-strip-shaped sliding chute is formed in the second end of each sliding vane, each transfer arm is arranged between the sliding vanes of two adjacent phase shifter assemblies, the pin column above each transfer arm is inserted into the sliding chute of at least one sliding vane above the transfer arm, and the pin column below each transfer arm is inserted into the sliding chute of at least one sliding vane below the transfer arm; the second ends of the two transfer arms are respectively connected to the second connecting parts.

The embodiment of the invention also provides a base station antenna which comprises the phase shifter.

According to the phase shifter and the base station antenna provided by the embodiment of the invention, the fixing clamp is arranged to block the sliding sheet above the sliding sheet, the U-shaped groove is arranged at the second end of the fixing clamp to buckle the sliding sheet and the base plate together, so that the stability of the relative position between the sliding sheet and the base plate is favorably improved, the supporting structure is further arranged between the fixing clamp and the sliding sheet to press and limit the sliding sheet, the stability of the position of the sliding sheet when the sliding sheet rotates relative to the base plate can be further improved, the problem of uneven gap between the sliding sheet and the base plate in the rotating process can be favorably avoided, and the stable performance of the phase shifter can be ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in 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 phase shifter assembly according to an embodiment of the present invention;

FIG. 2 is a general view of a retaining clip according to an embodiment of the present invention;

FIG. 3 is a schematic view of a side of the retaining clip facing the slider according to an embodiment of the present invention;

FIG. 4 is a schematic view of the side of the mounting clip facing away from the slider in an embodiment of the invention;

FIG. 5 is a schematic view of the connection between the slider and the retaining clip according to the embodiment of the present invention;

FIG. 6 is a schematic view of a slider according to an embodiment of the present invention;

FIG. 7 is a schematic view of a spindle according to an embodiment of the present invention;

FIG. 8 is a diagram of a C card according to an embodiment of the present invention;

FIG. 9 is a schematic view of a stent in an embodiment of the present invention;

FIG. 10 is a schematic view of a bracket attached to a substrate according to an embodiment of the present invention;

FIG. 11 is a schematic view of a stack of multilayer phase shifter elements in accordance with an embodiment of the present invention;

fig. 12 is a schematic view of an adaptor according to an embodiment of the present invention.

Description of reference numerals:

wherein, 1, a substrate; 101. a first strip line group; 102. opening a hole; 103. a first fixing hole; 104. welding a groove; 2. sliding blades; 201. a chute; 202. a clamping hole; 3. a rotating shaft; 301. a blocking table; 302. a neck section; 4. c, card; 401. a matching groove; 402. a guide plate; 403. a guide port; 404. a guide surface; 405. a boss structure; 5. a fixing clip; 501. an elastic sheet; 502. a spring plate; 503. a first boss; 504. clamping points of the bosses; 505. a U-shaped groove; 506. a second boss; 6. a support; 601. a card slot; 602. an elastic bayonet lock; 603. a locating pin structure; 604. a second fixing hole; 605. a first mounting hole; 606. a second mounting hole; 607. assembling a boss; 608. an elastic line card; 7. an adapter; 701. a pin; 702. a platform structure; 703. a pin structure; 704. buckling; 705. ribs; 706. a transfer arm; 8. and (7) assembling holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An embodiment of the present invention provides a phase shifter, which includes a phase shifter assembly, and referring to fig. 1, the phase shifter assembly includes a substrate 1 and a sliding piece 2 rotatably connected to the substrate 1. A first strip line group 101 is arranged on a substrate 1 of the phase shifter component; a second strip line group is arranged on the sliding sheet 2; the first strip line group 101 on the substrate 1 and the second strip line group on the slider 2 are electrically connected, i.e. conductively connectable. The phase shifter component enables phase difference of each port to be changed through rotation of the sliding sheet 2 relative to the substrate 1, and therefore downtilt of antenna beams of the base station is achieved.

The phase shifter assembly further comprises a fixing clamp 5, wherein the fixing clamp 5 is positioned on one side of the sliding piece 2 departing from the substrate 1, and the fixing clamp 5 is connected to the substrate 1 at the first end and the first end of the sliding piece 2 in an integrated rotating mode. Referring to fig. 2, a U-shaped groove 505 is formed at the second end of the fixing clip 5, the side edge of the substrate 1 is inserted into the U-shaped groove 505, referring to fig. 5, the second end of the sliding piece 2 penetrates through the bottom of the U-shaped groove 505, and a supporting structure is arranged between the fixing clip 5 and the sliding piece 2.

The phase shifter assembly is provided with a fixing clip 5 for achieving fixing of the relative position between the slide 2 and the substrate 1. The first end of the fixing clip 5 may be plate-shaped and located above the sliding piece 2. The first end of fixation clamp 5 and the first end of gleitbretter 2 are integrative to rotate and to be connected in base plate 1 for fixation clamp 5 and the integrative relative base plate 1 rotation of gleitbretter 2. The opening of the U-shaped groove 505 at the second end of the fixing clip 5 faces the side of the substrate 1, so that the side of the substrate 1 is inserted into the U-shaped groove 505 after the fixing clip 5 is mounted, and one groove wall of the U-shaped groove 505 is located on one side of the substrate 1 departing from the sliding sheet 2. The second end of the sliding piece 2 is also inserted into the U-shaped groove 505 and penetrates out of the groove bottom, so as to be connected with the antenna transmission device. The antenna transmission device is used for driving the sliding sheet 2 to rotate.

U type groove 505 that the mount second end set up can be in the same place gleitbretter 2 and base plate 1 lock, can prevent that gleitbretter 2 from keeping away from base plate 1, is favorable to keeping gleitbretter 2 to rotate the relative stability in-process and base plate 1 position. And set up bearing structure and can exert to gleitbretter 2 and make gleitbretter 2 and base plate 1 clearance even at gleitbretter 2 rotation in-process between gleitbretter 2 and fixation clamp 5.

The phase shifter that this embodiment provided, it can play the effect of blockking in 2 tops of gleitbretter to set up fixation clamp 5, and set up U type groove 505 and detain gleitbretter 2 and base plate 1 together at the second end of fixation clamp 5, be favorable to improving the stability of relative position between gleitbretter 2 and the base plate 1, it is spacing to support the pressure to gleitbretter 2 further to set up bearing structure between fixation clamp 5 and gleitbretter 2, can further improve the stability of position when 2 relative base plates of gleitbretter 1 rotate, be favorable to avoiding 2 rotation in-process of gleitbretter and the inhomogeneous problem in 1 clearance of base plate, thereby can guarantee to move the phase shifter stable performance.

Further, the side of the substrate 1 inserted into the U-shaped groove 505 may be arc-shaped, so as to facilitate the rotation of the sliding sheet 2 and the fixing clip 5 integrally relative to the substrate 1.

On the basis of the above embodiment, further, the phase shifter assembly further includes a rotating shaft 3, and the base plate 1, the first end of the sliding plate 2 and the first end of the fixing clip 5 are respectively provided with a mounting hole 8. The base plate 1, the sliding piece 2 and the fixing clamp 5 are assembled concentrically through the assembling hole 8. The rotating shaft 3 sequentially penetrates through the base plate 1, the sliding sheet 2 and the fixing clamp 5 through the assembling hole 8. The sliding piece 2 and the fixing clamp 5 rotate around the rotating shaft 3 integrally. Referring to fig. 7, one end of the rotating shaft 3 near the substrate 1 is configured with a blocking table 301, and the cross-sectional dimension of the blocking table 301 is larger than the assembly hole 8; one end of the rotating shaft 3 close to the fixing clamp 5 is detachably connected with a fastening piece.

The sliding sheet 2 and the fixing clamp 5 are integrally and rotatably connected to the base plate 1 through a rotating shaft 3. The slide 2 and the fixing clamp 5 rotate around the rotating shaft 3. One end of the rotation shaft 3 is provided with a blocking stage 301 so that the assembly holes 8 of the base plate 1, the slider 2 and the fixing clip 5 cannot pass through the blocking stage 301. The other end that can set up pivot 3 can pass pilot hole 8, wears out the other end of pivot 3 in proper order from the pilot hole 8 of base plate 1, gleitbretter 2 and fixation clamp 5. And then the other end of the rotation shaft 3 is connected to a fastener for preventing the base plate 1, the slider 2 and the fixing clip 5 from being released from the other end of the rotation.

On the basis of the above-mentioned embodiment, further, referring to fig. 7, in this embodiment, the rotating shaft 3 is configured with a neck section 302 with a smaller cross-sectional dimension on the side of the fixing clip 5 away from the sliding sheet 2, and referring to fig. 8, the fastener includes the C card 4, and the C card 4 is detachably connected with the rotating shaft 3 at the neck section 302. The C-card 4 is a C-shaped fastener, the C-card 4 has a circular arc-shaped matching groove 401 for matching with the neck section 302, and the C-card 4 has an opening from which it can be clipped to the outside of the neck section 302.

After the rotating shaft 3 sequentially passes through the substrate 1, the sliding sheet 2 and the fixing clamp 5, the C card 4 can be clamped at the neck section 302 of the rotating shaft 3 at one side of the fixing clamp 5 departing from the sliding sheet 2 for limiting and fixing. Thereby base plate 1, gleitbretter 2 and fixation clamp 5 are on pivot 3, and one side is spacing fixed through keeping off platform 301, and the opposite side is spacing fixed through C card 4, realizes three's reliable connection.

In addition to the above embodiment, referring to fig. 8, the C card 4 is connected with guide plates 402 at both sides of the opening, respectively, and a guide opening 403 gradually expanding from the opening of the C card 4 is formed between the two guide plates 402; the upper surface of the guide plate 402 is configured as a downwardly inclined guide surface 404. The C card 4 can be plate-shaped, and the arc-shaped matching groove 401 with the opening is formed in one side of a plate-shaped fastener, so that the area of the C card 4 can be increased, and the blocking, limiting and fixing can be better realized.

The guide plate 402 is configured to form a guide opening 403, and when the C card 4 is installed, the neck section 302 of the spindle 3 enters the guide opening 403 and then enters the matching groove 401, which facilitates installation of the C card 4. The guide surface 404 may also facilitate assembly of the C-card 4. Further, the upper surface of the C card 4 can be provided with a boss structure 405 in a connecting manner, so that the C card 4 can be conveniently handled by hands and can be conveniently assembled and disassembled.

On the basis of the above embodiment, further, referring to fig. 3, the supporting structure includes an elastic member disposed on the fixing clip 5 and a first boss 503 connected to a side of the elastic member facing the sliding piece 2. Elastic component and first boss 503 form the elastic support between fixation clamp 5 and gleitbretter 2, can rotate the in-process at gleitbretter 2 top and form better spacing fixed, prevent that the clearance is too big between gleitbretter 2 and the base plate 1, improve the homogeneity in clearance between gleitbretter 2 and the base plate 1.

Further, the elastic member may be an elastic piece 502 configured and formed on the fixing clip 5; the structure of the fixing clip 5 can be any structure with elasticity connected to the side facing the sliding sheet 2, and is not limited in particular. The specific size, the specific number and the specific arrangement position of the first bosses 503 are not limited, so as to achieve the purpose of better limiting and positioning the sliding piece 2 between the sliding piece 2 and the fixing clip 5.

Referring to fig. 4, the wall of the U-shaped groove 505 on the side of the substrate 1 facing away from the sliding piece 2 is connected with a second boss 506 on the side facing the substrate 1. The second boss 506 is used for limiting and fixing the fixing clip 5, so that the gap between the sliding sheet 2 and the substrate 1 is uniform.

Further, the fixing clip 5 and the sliding piece 2 can be integrally connected through a positioning pin structure. Specifically, referring to fig. 3, a boss fastening point 504 may be disposed on one side of the fixing clip 5 facing the sliding piece 2, referring to fig. 6, a fastening hole 202 may be disposed at a position corresponding to the sliding piece 2, referring to fig. 5, the boss fastening point 504 may be inserted into the fastening hole 202 to integrally connect the sliding piece 2 and the fixing clip 5, so that the fixing clip 5 and the sliding piece 2 are fixed at a relative position and rotate together with the sliding piece 2.

On the basis of the above embodiment, further, referring to fig. 3, the first end of the fixing clip 5 is configured with an elastic piece 501, and the fitting hole 8 on the fixing clip 5 is opened in the middle of the elastic piece 501. The elastic sheet 501 may specifically be: an elastic sheet 501 can be constructed at the first end of the fixing clip 5, specifically, a through hole can be formed at the first end of the fixing clip 5, and then the elastic sheet 501 is arranged in the through hole; then, a cross-shaped hole is formed in the elastic sheet 501, and an assembling hole 8 is formed in the middle of the elastic sheet 501, so that a flower-shaped elastic structure is formed.

Set up flexure strip 501 in the pilot hole 8 department of fixation clamp 5, have certain elasticity, can warp downwards when C card 4 impresses, the C card 4 of being convenient for impresses, still can guarantee that gleitbretter 2 has the clearance when revolving shaft 3 rotates because of having elasticity simultaneously, is unlikely to the card to die.

On the basis of the above embodiment, further, the sliding piece 2 is connected to the pull rod of the antenna transmission device through the adaptor 7, and the adaptor 7 includes a first connecting portion movably connected to the sliding piece 2 along the length direction of the sliding piece 2 and a second connecting portion detachably connected to the pull rod. The first connecting portion and the second connecting portion are connected, and the slide sheet 2 is driven to rotate through linear movement of the pull rod.

On the basis of the above embodiment, further referring to fig. 1, the phase shifter assembly further includes a bracket 6, and the bracket 6 is detachably connected to the substrate 1. Specifically, referring to fig. 1 and 9, in this embodiment, a clamping groove 601 is connected to a position corresponding to the periphery of the substrate 1 on the bracket 6, and the clamping groove 601 is connected to the side edge of the substrate 1 in a matching manner; the support 6 is also connected with an elastic bayonet 602, and the position of the substrate 1 corresponding to the elastic bayonet 602 is provided with an opening 102; the bracket 6 is also provided with a fixing hole for connecting with the substrate 1.

Referring to fig. 10, the bracket 6 is a phase shifter assembly fixing frame, the bracket 6 is provided with a plurality of slots 601, the slots 601 are matched with the size of the substrate 1, and the side edge of the substrate 1 is inserted into the slots 601. The front part of the clamping groove 601, namely the notch, is provided with an inclined surface guide, so that the phase shifter assembly can be conveniently clamped in by sliding from front to back. The spring pin 602 is engaged with the opening 102 of the substrate 1 to limit the position of the phase shifter assembly. The elastic latch 602 has an elastic positioning pin structure, and can be connected with the elastic piece on the bracket 6, and then the elastic piece is connected with the convex column to form the elastic latch 602. The elastic clamping pin 602 on the bracket 6 is inserted into the opening 102 on the substrate 1 to realize the connection between the bracket 6 and the substrate 1. The locking slot 601 and the elastic locking pin 602 can fix the phase shifter assembly on the bracket 6.

Furthermore, a plurality of sets of fixing holes may be correspondingly formed on the bracket 6 and the substrate 1 for fastening the phase shifter assembly. Specifically, the substrate may be provided with a first fixing hole 103, and the bracket 6 may be correspondingly provided with a second fixing hole 604. The bracket 6 and the base plate may be fastened at the first fixing hole 103 and the second fixing hole 604 by rivets, bolts, or the like. Furthermore, the specific number and specific arrangement positions of the clamping grooves 601, the elastic clamping pins 602 and the fixing holes on the bracket 6 can be flexibly arranged according to actual needs without limitation, so that the purpose of firmly connecting the substrate 1 and the bracket 6 can be realized.

Further, the specific connection structure of the substrate 1 and the bracket 6 may also be other structures, such as a snap structure, and the like, and is not limited in particular.

Referring to fig. 11, a plurality of phase shifter elements are stacked one on top of another, and the holders 6 of any adjacent two layers of phase shifter elements are detachably connected. Each set of phase shifter assemblies is supported by a bracket 6. A plurality of brackets 6 of a plurality of groups of phase shifter assemblies can be connected layer by layer, so that the phase shifter assembly is connected in a laminated assembly mode.

Specifically, referring to fig. 9 and 11, in this embodiment, the bracket 6 is provided with an assembling boss 607, and the assembling boss 607 is provided with a first mounting hole 605 inside; a second mounting hole 606 is also formed in the bracket 6; the mounting boss 607 on any layer of the support 6 vertically corresponds to the second mounting hole 606 on the support 6 located on the upper layer of the support 6, and the second mounting hole 606 on any layer of the support 6 vertically corresponds to the mounting boss 607 on the support 6 located on the lower layer of the support 6.

That is, the bracket 6 may be divided into two types according to the distribution of the fitting bosses 607 and the second mounting holes 606 on the bracket 6. Specifically, for example, the first bracket 6 is provided with a fitting boss 607 and a second mounting hole 606 at each corner, respectively, and the second mounting hole 606 is located at the periphery of the fitting boss 607. The second bracket 6 is also provided with a fitting boss 607 and a second mounting hole 606 at each corner, respectively, but the positions of the fitting boss 607 and the second mounting hole 606 are reversed compared to the first bracket 6 so that the fitting boss 607 is located at the periphery of the second mounting hole 606. When multiple sets of phase shifter elements are stacked, the two brackets 6 are placed in a staggered manner. The assembling boss 607 of each layer of bracket 6 is corresponding to the second mounting hole 606 of the upper layer of bracket 6 (except for the uppermost layer of bracket 6), so that a fastener can be arranged to pass through the second mounting hole 606 of the upper layer and the first mounting hole 605 on the assembling boss 607 of the lower layer, and the fastening connection of the adjacent two layers of brackets 6 is realized. At this time, the fastener may be a screw, a rivet, or the like.

The support 6 is provided with an assembling boss 607 which is matched and assembled with a second mounting hole 606 on the upper support 6, and the multilayer phase shifter can be stacked and assembled by cross combination of the two supports 6, so that the space occupation of the phase shifter can be greatly saved. Furthermore, a plurality of positioning pin structures 603 are arranged on the bracket 6, and pin grooves penetrating through the bottom are formed in the positioning pin structures 603; the upper part of the bracket 6 is provided with a pin column, and the bottom part of the bracket is provided with a pin groove; the pin column of the lower layer bracket 6 is matched with the pin groove of the upper layer bracket 6 to realize the installation and positioning of the upper layer bracket 6 and the lower layer bracket 6; the structure realizes the pin column and pin groove structure at the same position, can realize the positioning and supporting of the upper layer bracket 6 and the lower layer bracket 6, and saves the space occupation of the brackets 6.

Referring to fig. 11, the slides 2 of a plurality of phase shifter elements are simultaneously connected to the first connection portion. I.e. groups of phase shifter assemblies are connected to the antenna transmission via an adapter 7. The first connecting portion of the adaptor 7 is movably connected to the sliding pieces 2 of the plurality of phase shifter assemblies along the length direction of the sliding pieces 2. Therefore, the antenna transmission device can simultaneously drive the sliding sheets 2 of a plurality of groups of phase shifter assemblies to rotate through one adapter piece 7.

On the basis of the above-described embodiment, further, referring to fig. 11 and 12, the present embodiment provides a specific arrangement structure of the adaptor 7. The first connecting portion includes two transfer arms 706 arranged up and down, the upper side and the lower side of the first end of each transfer arm 706 are respectively provided with a pin 701, the second end of each slide 2 is provided with a long slide slot 201, each transfer arm 706 is arranged between the slides 2 of two adjacent phase shifter assemblies, the pin 701 above each transfer arm 706 is inserted into the slide slot 201 of at least one slide 2 above the transfer arm 706, and the pin 701 below each transfer arm 706 is inserted into the slide slot 201 of at least one slide 2 below the transfer arm 706. Second ends of the two transfer arms 706 are connected to the second connection portions, respectively.

The transfer arm 706 is inserted into the sliding slot 201 of the sliding piece 2 through the pin 701, so as to realize movable connection with the sliding piece 2. The pin 701 above the upper adapter arm 706 is movably connected with the slide 2 above the adapter arm 706; the pin 701 located below the upper transfer arm 706 and the pin 701 located above the lower transfer arm 706 make a simultaneous movable connection with the slide 2 located between the two transfer arms 706; the pin 701 under the lower adapter arm 706 is movably connected to the slide 2 under the adapter arm 706. Thereby realizing simultaneous connection with a plurality of sliders 2.

Further, an outer side of each pin 701 near an end of the transfer arm 706 may be coupled to the platform structure 702. The platform structure 702 cannot pass through the chute 201 of the slider 2. The position of the transfer arm 706 can be more restricted, and the movement of the transfer arm 706 in the height direction of the phase shifter can be restricted.

Further, in the embodiment, the second connecting part and the pull rod are detachably connected through a locating pin structure and/or a buckling structure. For example, the second connecting portion may be a connecting platform, on which two buckles 704 are oppositely disposed, and the two buckles 704 are used for being connected with the pull rod in a matching manner at two sides of the width direction of the pull rod; the connecting table is further provided with at least one pin shaft structure 703, and the at least one pin shaft structure 703 is used for penetrating through the pull rod and being connected with the pull rod in a matching mode.

Further, the connection structure of the second connection portion and the pull rod may be other structures, so as to achieve the connection between the two structures and facilitate the assembly and disassembly, and is not particularly limited.

Furthermore, a welding groove 104 is arranged at a position corresponding to each strip port on the substrate 1; the welding wire is used for positioning the position of the wire cable, and welding spot stress caused by welding wire cable offset is prevented from being overlarge. The support 6 is provided with a plurality of elastic line clamps 608 corresponding to the outgoing line positions of the phase shifter assemblies, and the elastic line clamps are used for fixing the phase shifter cables and ensuring that welding spots of the phase shifter cables are reliable for a long time.

On the basis of the foregoing embodiments, further, this embodiment provides a base station antenna, which includes the phase shifter described in any of the foregoing embodiments.

On the basis of the above embodiment, further, the embodiment provides a physical phase shifter with simple structure, convenient assembly, low cost and excellent performance for solving the problems of uneven gap between the sliding sheet 2 and the substrate 1 and unstable performance index during the downtilt adjustment process of the beam of the physical phase shifter in the prior art. The phase shifter mainly comprises: a phase shifter group, a bracket 6 and an adapter 7. The phase shifter group is the main part for realizing the declination function of the wave beam, and comprises a plurality of phase shifter assemblies, and each phase shifter assembly comprises a substrate 1, a sliding sheet 2, a fixing clamp 5, a rotating shaft 3 and a C card 4. The support 6 is the looks shifter subassembly mount, and the phase shifter is range upon range of to be placed to the realization of connecting through a plurality of supports 6. The adapter 7 is a component for connecting the antenna actuator and the phase shifter.

The substrate 1 is provided with a first strip line group 101, the slip sheet 2 is provided with a second strip line group, the first strip line group 101 is electrically connected with the second strip line group, the slip sheet 2 can rotate around the rotating shaft 3 relative to the substrate 1, and the fixing clamp 5 is provided with a boss clamping point 504 which is matched with the clamping hole 202 on the slip sheet 2, so that the fixing clamp 5 and the slip sheet 2 are ensured to rotate together. The fixing clamp 5 is provided with a plurality of elastic points which can ensure that the clearance between the sliding sheet 2 and the substrate 1 is uniform in the sliding process.

Specifically, the first end of the fixing clamp 5 is provided with an assembly hole 8, and the rotating shaft 3 penetrates through the assembly holes 8 in the base plate 1, the sliding sheet 2 and the fixing clamp 5 and is matched with the C card 4 to connect the sliding sheet 2 and the fixing clamp 5 with the base plate 1. Further, three elastic structures are arranged on the fixing clip 5. The flower-shaped elastic piece 501 deforms downwards when the C card 4 is pressed in, so that the C card 4 is conveniently pressed in, and meanwhile, a certain gap is formed when the sliding piece 2 rotates around the shaft, and the C card is prevented from being locked; the elastic supporting structure, that is, the elastic first boss 503 acts on the sliding sheet 2, and applies pressing force during the rotation of the sliding sheet 2; the sliding sheet 2 and the substrate 1 are buckled together by a buckle elastic structure, namely a U-shaped groove 505, a second boss 506 is arranged on the buckle elastic structure and acts on the bottom surface of the substrate 1, and in the rotating process of the sliding sheet 2, pressing force is given to enable the gap between the sliding sheet 2 and the substrate 1 to be uniform.

The axial structure of the rotating shaft 3 is thin in the middle and thick at two ends; one end of the elastic clamp can penetrate through the substrate 1, the sliding sheet 2 and the elastic clamp and is connected with the C card 4 in a matching way; the C card 4 is matched with the rotating shaft 3 for use, the C card 4 matching groove 401 is matched with the shaft neck of the rotating shaft 3, a guide opening 403 is formed in the opening of the C card 4 through a guide plate 402, and the front end of the guide plate 402 is provided with a guide surface 404 which is an inclined surface, so that the C card 4 can be conveniently assembled; furthermore, the pushing end of the C card 4 is provided with a boss structure, so that the C card is convenient to assemble and disassemble.

The bracket 6 is of a plastic structure and has certain elastic deformation capacity; a plurality of clamping grooves 601 and elastic clamping pins 602 are arranged on the bracket, wherein the clamping grooves 601 are used for clamping the phase shifter assembly, and the elastic clamping pins 602 are used for limiting the position of the phase shifter assembly on the bracket 6; the clamping groove 601 and the elastic clamping pin 602 are arranged in a matched mode according to the size of the substrate 1; the bracket 6 is simultaneously provided with a plurality of fixing holes for connecting and fastening the phase shifter assembly; furthermore, a plurality of assembling bosses 607 and positioning pin structures 603 are arranged on the bracket 6 and used for positioning connection between layers; furthermore, the support 6 is provided with a plurality of line cards for fixing the phase shifter assembly cable, and the cable welding spots are guaranteed to be firm and reliable.

Adaptor 7 is the part of connecting antenna transmission and moving looks ware, and adaptor 7 both ends are equipped with the pull rod connecting portion respectively and are second connecting portion and gleitbretter 2 connecting portion promptly first connecting portion, and one end is connected with the pull rod, and the other end is connected with moving looks ware gleitbretter 2. The pull rod is driven by the transmission device to move horizontally so as to drive the adaptor 7 to move horizontally, and the pin 701 of the adaptor 7 moves in the chute of the sliding sheet 2 to drive the sliding sheet 2 to rotate around the rotating shaft 3; namely, the pull rod horizontally moves and is converted into the slide sheet 2 to rotate; thereby realizing the phase change of each output port of the phase shifter.

Specifically, the adaptor 7 is provided with an adaptor arm 706, and the adaptor arm 706 is provided with pins 701 which are symmetrically distributed up and down. The pin 701 is matched with the sliding groove on the sliding piece 2, and the pin 701 can move along the sliding groove. The stage structure 702 can restrict the movement of the interposer 7 in the height direction of the phase shifter. The connecting portion of the connecting piece 7 is clamped into the pull rod, the pin shaft structure 703 is matched with the pull rod hole, and the buckle is arranged according to the size of the pull rod and used for clamping the pull rod and preventing the connecting piece 7 from loosening in the moving process of the pull rod. The pin shaft structure 703 is matched with the buckle structure for use, so that the pull rod is tightly connected with the adapter 7; the structure is simple, the operation is easy, and the clamping is reliable. The transfer arm 706 may connect the ribs 705; the ribs 705 are used for enhancing the strength of the adapter 7 and avoiding the problem that the transmission precision is influenced by the overlarge deformation of the adapter 7. Through the combination of different transfer arms 706 and the pins 701, the phases of the multilayer phase shifters can be adjusted simultaneously, transmission can be simplified, and antenna layout can be optimized.

The phase shifter may be used alone or may be used in a stacked state after being connected by the bracket 6. Through C card 4 and the cooperation of pivot 3 realize that base plate 1 is connected with gleitbretter 2, the installation is firm reliable to can dismantle, material utilization is high. The C card 4 and the rotating shaft 3 are made of common plastic parts, and the production process is simple and the cost is low. Fixation clamp 5 sets up a plurality of elastic construction, avoids the inhomogeneous problem in clearance of base plate 1 and gleitbretter 2 to guarantee to move looks ware stable performance. The multilayer phase shifters can be stacked for use through connection of the brackets 6, and the problems that the antenna space is occupied greatly and transmission is complex due to the fact that the number of the phase shifters is too large are avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A phase shifter comprises a phase shifter component, wherein the phase shifter component comprises a substrate and a sliding sheet which is rotatably connected to the substrate, and is characterized by further comprising a fixing clamp, the fixing clamp is located on one side, away from the substrate, of the sliding sheet, the first end of the fixing clamp and the first end of the sliding sheet are integrally and rotatably connected to the substrate, a U-shaped groove is formed in the second end of the fixing clamp, the side edge of the substrate is inserted into the U-shaped groove, the second end of the sliding sheet penetrates out of the groove bottom of the U-shaped groove, and a supporting structure is arranged between the fixing clamp and the sliding sheet;

the supporting structure comprises an elastic piece arranged on the fixing clamp and a first boss connected to one side, facing the sliding piece, of the elastic piece;

the U-shaped groove is located the cell wall that the base plate deviates from one side of gleitbretter is in the orientation one side of base plate is connected with the second boss.

2. The phase shifter as claimed in claim 1, wherein the phase shifter assembly further comprises a rotation shaft, the base plate, the first end of the slide plate and the first end of the fixing clip are respectively provided with a mounting hole, and the rotation shaft sequentially passes through the base plate, the slide plate and the fixing clip through the mounting holes;

one end of the rotating shaft, which is close to the base plate, is provided with a blocking table, and the cross section of the blocking table is larger than the assembling hole; the pivot is close to the one end of fixation clamp can be dismantled and be connected with the fastener.

3. The phase shifter as claimed in claim 2, wherein the rotary shaft is configured with a neck section of smaller cross-sectional dimension at a side of the fixing clip facing away from the slide, and the fastening member comprises a C-clip detachably connected to the rotary shaft at the neck section.

4. The phase shifter according to claim 3, wherein guide plates are respectively connected to both sides of the opening of the C card, and a guide opening gradually expanding from the opening of the C card is formed between the two guide plates; the upper surface of the guide plate is configured as a downwardly inclined guide surface.

5. The phase shifter as claimed in claim 2, wherein the first end of the fixing clip is configured with an elastic piece, and the fitting hole of the fixing clip is opened in the middle of the elastic piece.

6. The phase shifter of claim 1, wherein the slide is connected to a pull rod of an antenna transmission device through an adaptor, the adaptor including a first connection portion movably connected to the slide along a length direction of the slide and a second connection portion detachably connected to the pull rod.

7. The phase shifter of claim 6, further comprising a bracket removably coupled to the substrate; a plurality of phase shifter assemblies are stacked up and down, supports of any two adjacent layers of phase shifter assemblies are detachably connected, and a plurality of sliding sheets of the phase shifter assemblies are connected with the first connecting portion at the same time.

8. The phase shifter according to claim 7, wherein the first connection portion comprises two connection arms disposed opposite to each other, each of the connection arms has a first end with a pin at each of upper and lower sides thereof, a second end with an elongated slot, each of the connection arms is disposed between two adjacent slots of the phase shifter assembly, the pin above each connection arm is inserted into the slot of at least one slot above the connection arm, and the pin below each connection arm is inserted into the slot of at least one slot below the connection arm;

the second ends of the two transfer arms are respectively connected to the second connecting parts.

9. A base station antenna comprising a phase shifter according to any one of claims 1 to 8.