A TDD cableless feed network for a base station antenna

Abstract

The application discloses a TDD cable-free feeding network for a base station antenna, which comprises a shell, a plurality of inner cavities formed by partitions arranged at intervals along a width direction in the shell, and phase-shifting assemblies arranged in the inner cavities; two adjacent phase-shifting assemblies form a group, a convex rib is formed by extending upwards from the top surface of the shell at the middle part of the phase-shifting assemblies in the group, and at least one radiation unit is arranged on the convex rib; the phase-shifting assembly in the inner cavity is bent upwards to form a pin, and the pin is directly connected with the radiation unit above, so that the cable-free direct connection between the phase-shifting assembly and the radiation unit in the base station antenna is realized, damage caused by the cable is greatly reduced, the antenna gain is ensured, and the structure is simple, convenient to assemble and good in practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of base station antenna, especially a TDD cable-free feeding network for base station antenna. BACKGROUND

[0002] In the prior art, the phase shifter in the base station antenna is usually arranged in a large chamber, and the interface of the phase shifter is usually connected with the radiation unit by a cable, which will cause loss and affect the antenna gain, and the use of thicker cable will also increase the cost.

[0003] On the other hand, in the existing base station antenna, the driving unit of the phase shifter is usually arranged on the same side as the radiation unit, and the phase shifter is easily resonated due to the assembly space, which will cause the stability of the device to be significantly reduced, increase the loss, and even affect the antenna efficiency and safety. SUMMARY

[0004] To solve the above problems, the present application provides a TDD cable-free feeding network for base station antenna with reasonable structure, so as to realize the direct connection of the phase shift assembly and the radiation unit in the base station antenna without cable, greatly reduce the damage caused by the cable, help to ensure the antenna gain, and the structure is simple, easy to assemble, and good in practicability.

[0005] The technical scheme adopted by the present application is as follows:

[0006] A TDD cable-free feeding network for base station antenna, comprising a shell, a plurality of inner cavities are formed by a plurality of partitions arranged in the shell along the width direction, and a phase shift assembly is arranged in each inner cavity; two phase shift assemblies are arranged in each group, a convex rib is formed on the top surface of the shell at the middle part of the phase shift assembly in the group, and at least one radiation unit is arranged on the convex rib; the feeding network in the phase shift assembly arranged in the inner cavity is bent upwards to form a pin, and the pin is directly connected with the radiation unit above.

[0007] As a further improvement of the above technical scheme:

[0008] A notch is formed on the convex rib, and the notch is communicated with the inner cavity below; the radiation unit is limited and arranged in the notch, and the pin is connected with the radiation unit in the notch.

[0009] The phase shift assembly comprises a connecting rod arranged along the partition, and a moving medium is arranged on the side surface of the connecting rod; the inner top surface and the inner bottom surface of the inner cavity arranged at the partition are respectively recessed to form a limiting space, and the connecting rod and the moving medium are arranged in the limiting space, so that the connecting rod drives the moving medium to move along the partition.

[0010] The phase-shifting assembly further comprises a feed network supported and fixed inside the inner cavity by a support, the support being made of low-dielectric plastic material; mobile mediums are arranged on both sides of the feed network outside the support, and the mobile mediums move relative to the feed network to perform phase shifting.

[0011] A plurality of long grooves are formed through the bottom surface of the shell, the long grooves are arranged along the moving direction of the connecting rods, the connecting pieces are slidingly installed on the shell at the long grooves, the bottom ends of the connecting pieces extend into the inner cavity through the long grooves and are matched with the corresponding connecting rods, a cross rod is jointly installed on the plurality of connecting pieces, the cross rod is arranged along the width direction of the shell, and the cross rod is driven by the power transmission mechanism to move along the length direction of the long grooves.

[0012] The power transmission mechanism is installed on the bottom surface of the shell through a support, the cross rod is arranged between the shell and the support, and a pull rod is vertically installed on the middle part of the cross rod; the power transmission mechanism comprises a rotating power source installed on the support, a screw rod is connected and installed at the output end of the rotating power source, and the both ends of the screw rod are rotatably supported on the support through supports; a spiral seat is spirally matched on the screw rod, one end of the moving rod is fixedly installed on the spiral seat, and the other end of the moving rod is installed on the pull rod through a connecting frame.

[0013] The bottom surface of the shell is downwardly extended along the width direction to form a T-shaped rib, the long grooves are formed in the T-shaped rib, and the connecting pieces are slidingly matched on the T-shaped rib.

[0014] The connecting piece comprises a support plate, the bottom surface of the support plate is downwardly extended to form a support arm, the support arms are arranged on both sides of the T-shaped rib, the support arms are oppositely extended to form protrusions, and the horizontal part of the T-shaped rib is slidingly matched between the protrusions and the bottom surface of the support plate; the support arm extends into the inner cavity through the long groove, the end part of the support arm is oppositely extended to form a protruding buckle, and the protruding buckle is fixedly buckled on the connecting rod.

[0015] The edge of the support plate is upwardly extended to form a channel with a cross-shaped structure, the upper part of the side wall at the end part of the channel is oppositely extended to form a buckle; the middle part of the top surface of the support plate is upwardly extended to form a protruding column, the protruding column comprises a first protruding column and a second protruding column which are arranged along two directions of the channel and are spaced apart from each other, the height of the first protruding column is higher than that of the second protruding column, and the height of the buckle in the same direction as the first protruding column is higher than that of the buckle in the same direction as the second protruding column.

[0016] The shell is an integrally-formed extrusion piece, and the number of the inner cavities in the shell is even; the top surface of the shell between the adjacent two groups of phase-shifting assemblies is upwardly extended to form an extension plate, the extension plate and the protruding ribs are arranged at intervals, and the extension plate and the protruding ribs correspond to the corresponding partition plates, respectively.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The application realizes the direct connection of the phase-shifting assembly and the radiation unit without cable in the base station antenna, greatly reduces the damage caused by the cable, helps to ensure the antenna gain, and has the advantages of simple structure, easy assembly, good practicability, and is especially suitable for antenna arrays with different column spacings.

[0019] The application also has the following advantages:

[0020] By arranging the convex ribs on the top surface of the shell and the notches communicated with the inner cavities on the convex ribs, the radiation unit can be quickly and conveniently installed on the shell, and the direct connection of the radiation unit and the feed network in the inner cavity without cable is effectively ensured and facilitated.

[0021] The radiation unit is arranged on the top surface of the shell, and the power transmission mechanism of the phase-shifting assembly is arranged on the bottom surface of the shell, so that the driving unit of the phase shifter and the radiation unit are arranged on the two surfaces of the shell respectively, the resonance of the phase-shifting assembly is effectively reduced or even avoided, the stability of the equipment operation is ensured, and the antenna efficiency and safety are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the application.

[0023] Figure 2 It is Figure 1 It is a partial enlarged view of A in the figure.

[0024] Figure 3 It is an installation schematic diagram of the radiation unit on the shell in the application.

[0025] Figure 4 It is a layout schematic diagram of the phase-shifting assembly in the shell.

[0026] Figure 5 It is a structural schematic diagram of the phase-shifting assembly.

[0027] Figure 6 It is Figure 5 It is a partial enlarged view of B in the figure.

[0028] Figure 7 It is a layout schematic diagram of the power transmission mechanism on the shell.

[0029] Figure 8 It is a structural schematic diagram of the power transmission mechanism.

[0030] Figure 9 It is a layout schematic diagram of the pull rod and the cross rod on the shell.

[0031] Figure 10This is a schematic diagram of the installation of the connector of the present invention on the housing.

[0032] Figure 11 This is a schematic diagram of the connector of the present invention.

[0033] Figure 12 This is a structural schematic diagram of the connector of the present invention from another perspective.

[0034] The components include: 1. Shell; 2. Radiation unit; 3. Power transmission mechanism; 4. Tie rod; 5. Crossbar; 6. Connector; 7. Phase shifting assembly;

[0035] 10. Inner cavity; 11. Extension plate; 12. Partition; 13. Limiting space; 14. T-shaped rib; 15. Raised rib; 16. Notch; 17. Long groove;

[0036] 31. Bracket; 32. Rotational power; 33. Screw seat; 34. Moving rod; 35. Screw; 36. Connecting frame; 37. Support;

[0037] 61. Support plate; 62. Channel; 63. Buckle; 64. Protruding post one; 65. Protruding post two; 66. Support arm; 67. Protruding buckle; 68. Protrusion block;

[0038] 71. Connecting rod; 72. Moving medium; 73. Power supply network; 74. Support component; 75. Pin. Detailed Implementation

[0039] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0040] like Figure 1 and Figure 2 As shown, a TDD cableless feed network for a base station antenna in this embodiment includes a housing 1. Multiple inner cavities 10 are formed by partitions 12 spaced along the width direction inside the housing 1. Each inner cavity 10 is equipped with a phase-shifting component 7. Two adjacent phase-shifting components 7 are grouped together. A rib 15 extends upward from the top surface of the housing 1 located in the middle of a group of phase-shifting components 7. At least one radiating element 2 is installed on the rib 15. The feed network 73 in the phase-shifting component 7 located within the inner cavity 10 bends upward to form a pin 75, which is directly connected to the radiating element 2 above.

[0041] In this embodiment, by arranging phase-shifting components 7 in each internal cavity 10 within the housing 1 and radiating units 2 on the top surface of the housing 1, the feed network 73 in the phase-shifting components 7 is bent to form pins 75 directly connected to the radiating units 2. By using the method of bending the feed line, the radiating units 2 are directly fed, thereby realizing the cableless direct connection between the phase-shifting components 7 and the radiating units 2 in the base station antenna.

[0042] In this embodiment, multiple groups of phase shift components 7 can be arranged in the shell 1 according to actual needs, multiple convex ribs 15 are arranged on the top surface of the shell 1, and multiple radiation units 2 can also be installed on a single convex rib 15 to form a radiation unit array.

[0043] TDD is the abbreviation of Time Division Duplex, which usually refers to time division duplex bidirectional communication, a wireless communication technology that allows devices to transmit and receive at the same time.

[0044] As shown in Figure 3 , the convex rib 15 is provided with a notch 16, and the notch 16 is communicated with the lower inner cavity 10; the radiation unit 2 is limited and matched with the notch 16, and the pin 75 is connected with the radiation unit 2 at the notch 16.

[0045] In this embodiment, by arranging the convex rib 15 on the top surface of the shell 1, and arranging the notch 16 communicated with the inner cavity 10 on the convex rib 15, not only the quick and convenient installation of the radiation unit 2 on the shell 1 is realized, but also the direct cable connection between the radiation unit 2 and the inner cavity 10 is effectively ensured.

[0046] In actual operation, rivet connection can also be added between the radiation unit 2 and the shell 1 to effectively ensure the stable installation of the radiation unit 2 on the convex rib 15 of the shell 1.

[0047] As shown in Figure 4 , Figure 5 and Figure 6 , the phase shift component 7 includes an adapter rod 71 arranged against the partition plate 12, and a moving medium 72 is installed on the side surface of the adapter rod 71; the inner top surface and the inner bottom surface of the inner cavity 10 located at the partition plate 12 are respectively recessed to form a limiting space 13, the adapter rod 71 and the moving medium 72 are matched with the limiting space 13, so that the adapter rod 71 drives the moving medium 72 to move along the partition plate 12.

[0048] In this embodiment, by arranging the limiting space 13 in the inner cavity 10, the reliable installation of the adapter rod 71 and the moving medium 72 relative to the inner cavity 10 can be quickly and conveniently realized, and the phase shift movement of the adapter rod 71 and the moving medium 72 relative to the inner cavity 10 in the length direction is effectively ensured.

[0049] In this embodiment, multiple moving media 72 can be matched and arranged on the side surface of the adapter rod 71 according to actual needs.

[0050] In this embodiment, the moving medium 72 can be provided as a U-shaped structure with an opening facing the feeding network 73, the bottom surface of the U-shaped structure of the moving medium 72 is fixed to the side surface of the adapter rod 71, and the U-shaped structure is extended laterally and is jointly limited in the limiting space 13 with the adapter rod 71.

[0051] The phase-shifting assembly 7 further comprises a feed network 73 fixed inside the inner cavity 10 supported by a support 74 made of low dielectric plastic material; the moving medium 72 is arranged on both sides of the feed network 73 outside the support 74, and the moving medium 72 is coupled to the feed network 73 by partially covering the feed network 73 through the opening, and the moving medium 72 moves relative to the feed network 73 to perform phase shifting.

[0052] In the embodiment, the support 74 is made of low dielectric plastic material, which can effectively reduce the loss due to the dielectric constant close to air. For example, the support 74 can be made of supercritical microcellular foaming material with extremely low dielectric loss, which can effectively support the feed network 73.

[0053] As shown in Figure 9 The shell 1 has a plurality of long grooves 17 formed through the bottom surface, the long grooves 17 are arranged along the moving direction of the connecting rods 71, the connecting pieces 6 are slidingly installed on the shell 1 at the long grooves 17, the bottom ends of the connecting pieces 6 extend into the inner cavity 10 through the long grooves 17 and are matched with the corresponding connecting rods 71; the horizontal rods 5 are installed on the plurality of connecting pieces 6, the horizontal rods 5 are arranged along the width direction of the shell 1, and the horizontal rods 5 are driven by the power transmission mechanism 3 to move along the length direction of the long grooves 17.

[0054] In the embodiment, the connecting pieces 6 at the plurality of long grooves 17 of the shell 1 are arranged, which realizes the transmission of the moving power outside the shell 1 to the inner cavity 10 to drive the connecting rods 71 to move.

[0055] In the embodiment, the horizontal rods 5 are arranged, which can drive the connecting rods 71 in each phase-shifting assembly 7 matched with each connecting piece 6 to move synchronously through the operation of the power transmission mechanism 3.

[0056] As shown in Figure 7 The power transmission mechanism 3 is installed on the bottom surface of the shell 1 through the bracket 31, the horizontal rods 5 are arranged between the shell 1 and the bracket 31, and the pull rods 4 are vertically installed in the middle of the horizontal rods 5.

[0057] In the embodiment, the radiation unit 2 is arranged on the top surface of the shell 1, and the power transmission mechanism 3 of the phase-shifting assembly 7 is arranged on the bottom surface of the shell 1, so that the driving unit of the phase shifter and the radiation unit 2 are arranged on the two surfaces of the shell 1 respectively, which effectively reduces or even avoids the resonance of the phase-shifting assembly 7, ensures the stability of the equipment operation, and guarantees the antenna efficiency and safety.

[0058] As shown in Figure 8As shown, the power transmission mechanism 3 is structured as follows: the rotating power 32 is mounted on the support 31, the output end of the rotating power 32 is connected to the screw rod 35, the screw rod 35 is rotatably supported on the support 31 by the support 37 at both ends, the screw seat 33 is spirally arranged on the screw rod 35, the screw seat 33 is fixedly mounted at one end of the moving rod 34, and the moving rod 34 is mounted with the pull rod 4 through the connecting frame 36.

[0059] In use, the rotating power 32 works, the screw rod 35 rotates, the screw seat 33 spirally arranged on the screw rod 35 is moved along the length direction of the screw rod 35, the screw seat 33 drives the pull rod 4 to move through the moving rod 34, and the pull rod 4 drives the cross rod 5 to move, thereby driving each phase shift component 7 to produce phase shift action through the cross rod 5.

[0060] In the embodiment, the synchronization phase shift operation of each phase shift component 7 can be realized by connecting the pull rod 4 and the cross rod 5, and bridging different arrays through the cross rod 5, which is especially suitable for antenna arrays with different column spacings.

[0061] In the embodiment, the cross rod 5 is arranged between the support 31 and the shell 1, one end of the pull rod 4 is connected to the cross rod 5, and the other end of the pull rod 4 extends out of the support 31 and is connected to the moving rod 34 through the connecting frame 36, so that the overall structure is compact, ingenious and reasonable.

[0062] The T-shaped rib 14 is formed by extending downward along the width direction at the bottom of the shell 1, the long slot 17 is formed by extending along the T-shaped rib 14, and the connecting piece 6 is slidingly arranged on the T-shaped rib 14, as shown in Figure 10 .

[0063] In the embodiment, the T-shaped rib 14 provides guidance for the movement of the connecting piece 6, effectively ensuring that the connecting piece 6 reliably and stably drives the connecting rod 71 in the phase shift component 7 to move.

[0064] As shown in Figure 11 and Figure 12 , the structure of the connecting piece 6 is as follows: the connecting piece 6 includes a support plate 61, the bottom of the support plate 61 extends downward to form a support arm 66, the support arm 66 is arranged on both sides of the T-shaped rib 14, the support arm 66 extends towards each other to form a protruding block 68, the horizontal part of the T-shaped rib 14 is slidingly arranged between the protruding block 68 and the bottom of the support plate 61, and the sliding arrangement of the connecting piece 6 relative to the T-shaped rib 14 is realized; the support arm 66 extends into the inner cavity 10 through the long slot 17, the end of the support arm 66 extends towards each other to form a protruding buckle 67, and the protruding buckle 67 is fixedly connected with the connecting rod 71.

[0065] In the embodiment, a hole matched with the protruding buckle 67 can be formed on the connecting rod 71 to realize the quick installation of the connecting piece 6 and the connecting rod 71.

[0066] In the embodiment, the installation limiting between the connecting piece 6 and the T-shaped rib 14 is realized by the setting of the branch arm 66 combined with the protruding block 68, and the fixed installation of the connecting piece 6 and the connecting rod 71 in the inner cavity 10 is realized by the setting of the branch arm 66 combined with the end protruding buckle 67, so that the connecting rod 71 can be stably moved by the connecting piece 6.

[0067] The edge of the support plate 61 extends upward to form a channel 62 of a cross-shaped structure, and the upper parts of the side walls at the ends of the channel 62 extend oppositely to form buckles 63; the middle part of the top surface of the support plate 61 extends upward to form a protruding column, which includes a protruding column one 64 and a protruding column two 65 arranged at intervals in two directions of the channel 62, and the height of the protruding column one 64 is higher than that of the protruding column two 65, and the height of the buckle 63 in the same direction as the protruding column one 64 is higher than that of the buckle 63 in the same direction as the protruding column two 65.

[0068] In the embodiment, the connecting piece 6 accommodates the cross bar 5 or the pull rod 4 through the channel 62, and the horizontal limiting is realized by the holes for the protruding column on the cross bar 5 and the pull rod 4, and the height limiting is realized by the buckle 63.

[0069] In actual assembly, the cross bar 5 can be buckled on the protruding column two 65 with lower height on each connecting piece 6, and the pull rod 4 can be buckled on the protruding column one 64 with higher height on the corresponding connecting piece 6, so as to realize the quick and reliable fixing between the cross bar 5 and the pull rod 4 through the connecting piece 6, and effectively avoid the relative deflection between the cross bar 5 and the pull rod 4.

[0070] The shell 1 is an integrally formed extrusion piece, and the number of the inner cavities 10 in the shell 1 is even; the top surface of the shell 1 between the adjacent two groups of phase shift assemblies 7 extends upward to form an extension plate 11, the extension plate 11 is arranged at intervals with the protruding ribs 15, and the extension plate 11 and the protruding ribs 15 correspond to the respective partition plates 12.

[0071] In the embodiment, the space for installing the radiation unit 2 is formed by the extension plate 11.

[0072] Based on the cavity phase shifter, the metal shielding characteristics of the cavity phase shifter itself are utilized, a cavity is added on the shell 1 to form a main feeder ground, the overall structure is effectively simplified, and the overall layout and installation are facilitated.

[0073] The feed network 73 in the application can be formed by stamping or etching of sheet metal.

[0074] The application realizes the direct connection without cable between the phase shift assembly and the radiation unit in the base station antenna, greatly reduces the damage caused by the cable, helps to ensure the antenna gain, and has the advantages of simple structure, easy assembly, good practicability, and especially suitable for antenna arrays with different column spacings.

[0075] The various embodiments described in this specification are presented for the purpose of illustration and description. Each of the embodiments described in this specification is presented individually for ease of understanding, and the same or similar parts and principles are cross-referenced across embodiments.

[0076] The above description is an explanation of the present application, not a limitation of the application. The scope of the present application is defined by the claims. Within the scope of the present application, any form of modification is possible.

Claims

1. A TDD cableless feed network for a base station antenna, characterized by: The shell (1) is internally provided with partitions (12) arranged along the width direction at intervals to form multiple inner cavities (10), and each inner cavity (10) is provided with a phase-shifting assembly (7); two adjacent phase-shifting assemblies (7) form a group, the top surface of the shell (1) at the middle of the group of phase-shifting assemblies (7) is extended upwards to form a protruding rib (15), and at least one radiating unit (2) is installed on the protruding rib (15); the feed network (73) in the phase-shifting assembly (7) in the inner cavity (10) is bent upwards to form a pin (75), and the pin (75) is directly connected with the upper radiating unit (2). The phase-shifting assembly (7) comprises a connecting rod (71) arranged against the partition (12), and the side surface of the connecting rod (71) is provided with a moving medium (72). The bottom surface of the shell (1) is provided with multiple long grooves (17) penetratingly formed, the long grooves (17) are arranged along the moving direction of the connecting rod (71), the shell (1) at the long grooves (17) is provided with a connecting piece (6) slidingly installed, the bottom end of the connecting piece (6) extends into the inner cavity (10) through the long groove (17) and is matched with the corresponding connecting rod (71); multiple connecting pieces (6) are jointly provided with a cross rod (5), the cross rod (5) is arranged along the width direction of the shell (1), and the cross rod (5) is driven by a power transmission mechanism (3) to move along the length direction of the long groove (17).

2. A TDD cable-free feed network for a base station antenna as claimed in claim 1, characterized in that: The protruding rib (15) is provided with a notch (16) formed thereon, and the notch (16) is communicated with the lower inner cavity (10); the radiating unit (2) is limitingly matched in the notch (16), and the pin (75) is connected with the radiating unit (2) in the notch (16).

3. A TDD cable-free feed network for a base station antenna as claimed in claim 1, characterized in that: The inner top surface and the inner bottom surface of the inner cavity (10) at the partition (12) are respectively concave to form a limiting space (13), the connecting rod (71) and the moving medium (72) are matched in the limiting space (13), so that the connecting rod (71) drives the moving medium (72) to move along the partition (12).

4. A TDD cableless feed network for a base station antenna as claimed in claim 3, characterised in that: The phase-shifting assembly (7) further comprises a feed network (73), the feed network (73) is supported and fixed inside the inner cavity (10) by a support (74), and the support (74) is made of low-dielectric plastic material; the moving medium (72) is arranged on the both sides of the feed network (73) outside the support (74), and the moving medium (72) moves relative to the feed network (73) to perform phase shifting.

5. A TDD cableless feed network for a base station antenna as claimed in claim 1, characterized in that: The power transmission mechanism (3) is installed on the bottom surface of the shell (1) through a support (31), the cross rod (5) is arranged between the shell (1) and the support (31), and a pull rod (4) is vertically installed in the middle of the cross rod (5); the power transmission mechanism (3) comprises a rotating power (32) installed on the support (31), a screw rod (35) connected with the output end of the rotating power (32), and a bearing (37) for rotatingly supporting the both ends of the screw rod (35) on the support (31); a spiral seat (33) is spirally matched on the screw rod (35), one end of the spiral seat (33) is fixedly installed with a moving rod (34), and the other end of the moving rod (34) is installed with the pull rod (4) through a connecting frame (36).

6. A TDD cableless feed network for a base station antenna as claimed in claim 1, characterized in that: The bottom surface of the shell (1) extends downward along the width direction to form a T-shaped rib (14), a long slot (17) is arranged on the T-shaped rib (14), and the connecting piece (6) is slidingly arranged on the T-shaped rib (14).

7. A TDD cableless feed network for a base station antenna as claimed in claim 6, characterised in that: The connecting piece (6) comprises a support plate (61), the bottom surface of the support plate (61) extends downward to form a support arm (66), the support arm (66) is arranged on both sides of the T-shaped rib (14), the support arm (66) extends oppositely to form a protrusion (68), and the horizontal part of the T-shaped rib (14) is slidingly arranged between the protrusion (68) and the bottom surface of the support plate (61); the support arm (66) extends into the inner cavity (10) through the long slot (17), the end of the support arm (66) extends oppositely to form a protruding buckle (67), and the protruding buckle (67) is fixedly connected with the connecting rod (71).

8. A TDD cableless feed network for a base station antenna as claimed in claim 7, characterised in that: The edge of the support plate (61) extends upward to form a channel (62) with a cross-shaped structure, and the upper part of the side wall at the end of the channel (62) extends oppositely to form a buckle (63); the top surface of the support plate (61) extends upward to form a protruding column, the protruding column comprises a first protruding column (64) and a second protruding column (65) arranged along two directions of the channel (62) at intervals, the height of the first protruding column (64) is higher than that of the second protruding column (65), and the height of the buckle (63) in the same direction as the first protruding column (64) is higher than that of the buckle (63) in the same direction as the second protruding column (65).

9. A TDD cableless feed network for a base station antenna as claimed in claim 1, characterized in that: The shell (1) is an integrally formed extrusion part, the number of inner cavities (10) in the shell (1) is even, the top surface of the shell (1) between two adjacent phase-shifting assemblies (7) extends upward to form an extension plate (11), the extension plate (11) and the protruding rib (15) are arranged at intervals, and the extension plate (11) and the protruding rib (15) correspond to the corresponding partition plate (12), respectively.

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