A cavity-coupled phase shifter

Abstract

This utility model discloses a cavity-coupled phase shifter, including a cavity, a coupling seat, and a coaxial cable. The coupling seat is disposed on the cavity, and the coaxial cable is disposed on the coupling seat, so that the coaxial cable is coupled to the cavity through the coupling seat. This cavity-coupled phase shifter provided by this utility model eliminates the need for electroplating of the cavity or coaxial cable, its service life is unaffected by the electroplating layer, and its processing cost and processing time are low.

Description

Technical Field

[0001] This utility model relates to the field of phase shifter technology, and in particular to a cavity-coupled phase shifter. Background Technology

[0002] Currently, most base station antenna phase shifters are connected to metal transmission lines using coaxial cables. Existing phase shifters require electroplating of the cavity or the outer conductor of the coaxial cable before soldering the coaxial cable onto the cavity. The electroplating process is costly and time-consuming, and over time, the electroplated layer on the cavity or coaxial cable becomes fragile, causing the conductor soldered to the phase shifter cavity to easily detach. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cavity coupling phase shifter to reduce the fixed processing cost of the cavity and coaxial cable of the phase shifter, and correspondingly improve the service life of the phase shifter.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a cavity coupling phase shifter, including a cavity, a coupling seat and a coaxial cable, wherein the coupling seat is disposed on the cavity and the coaxial cable is disposed on the coupling seat, so that the coaxial cable is coupled to the cavity through the coupling seat.

[0005] Furthermore, the coupling seat is provided with a cable through hole, through which the coaxial cable passes.

[0006] Furthermore, the coupling seat includes a connecting part and a fixing part connected together, the fixing part is provided with the cable through hole, and the connecting part is provided on the cavity.

[0007] Furthermore, the coupling seat is a profile.

[0008] Furthermore, the coaxial cable includes, from the inside out, a core wire, an insulating medium, an outer conductor, and an outer sheath, and the coupling seat is sleeved on the outer sheath.

[0009] Furthermore, it also includes a PCB board, which is disposed in the cavity, and a transmission line is provided on the PCB board, with the coaxial cable coupled to the transmission line.

[0010] Furthermore, the cavity is provided with a first through hole, through which the coaxial cable passes and couples with the transmission line, and the first through hole is disposed adjacent to the coupling seat.

[0011] Furthermore, the PCB board is provided with terminals for coupling the transmission line, and the cavity is provided with a second through hole corresponding to the terminal. The first through hole and the second through hole are respectively provided on the adjacent side walls of the cavity, and the first through hole and the second through hole are connected.

[0012] Furthermore, the PCB board is provided with a phase shifter, which is attached to the transmission line.

[0013] Furthermore, the cavity has a through receiving hole along its length, and positioning grooves are provided on the opposite side walls of the receiving hole.

[0014] The beneficial effects of this utility model are as follows: The cavity coupling phase shifter provided by this utility model has a coupling seat on the cavity, wherein the coupling seat is welded to the cavity to form a whole, and the coaxial cable is placed on the coupling seat, so that the coaxial cable and the cavity are coupled through the coupling seat. This cavity coupling phase shifter provided by this utility model does not require electroplating of the cavity or coaxial cable, the service life of the cavity coupling phase shifter is not affected by the electroplating layer, and the processing cost and processing time of this cavity coupling phase shifter are low. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cavity coupling phase shifter described in this utility model; Figure 2 for Figure 1 The diagram shows a partial structural schematic of the cavity coupling phase shifter. Figure 3 for Figure 1 The exploded view of the cavity coupling phase shifter shown is shown. Figure 4 for Figure 1 The cross-sectional view of the cavity coupling phase shifter shown is shown. Figure 5 for Figure 4 The enlarged view of part A shown.

[0016] Label Explanation: 1. Cavity; 11. First through hole; 12. Second through hole; 13. Receiving hole; 14. Positioning groove; 2. Coupling base; 21. Cable through hole; 22. Connecting part; 23. Fixing part; 3. Coaxial cable; 31. Core wire; 32. Insulating medium; 33. Outer conductor; 34. Outer sheath; 4. PCB board; 41. Transmission line; 42. Terminal; 43. Phase shifter; 431. Adhesive part; 44. Connecting hole; 45. Connecting post. Detailed Implementation

[0017] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0018] Please refer to Figure 1 A cavity coupling phase shifter includes a cavity 1, a coupling seat 2, and a coaxial cable 3. The coupling seat 2 is disposed on the cavity 1, and the coaxial cable 3 is disposed on the coupling seat 2, so that the coaxial cable 3 is coupled to the cavity 1 through the coupling seat 2.

[0019] As described above, the beneficial effects of this utility model are as follows: The cavity coupling phase shifter provided by this utility model has a coupling seat 2 installed on the cavity 1, wherein the coupling seat 2 is welded to the cavity 1 to form a whole, and the coaxial cable 3 is installed on the coupling seat 2, so that the coaxial cable 3 and the cavity 1 are coupled through the coupling seat 2. This cavity coupling phase shifter provided by this utility model does not require electroplating of the cavity 1 or the coaxial cable 3, the service life of the cavity coupling phase shifter is not affected by the electroplating layer, and the processing cost and processing time of this cavity coupling phase shifter are low.

[0020] For further details, please refer to Figure 4 The coupling seat 2 is provided with a cable through hole 21, through which the coaxial cable 3 passes.

[0021] As can be seen from the above description, the coupling seat 2 provides good fixation for the coaxial cable 3, which can ensure the reliability and stability of the coupling between the coaxial cable 3 and the cavity 1.

[0022] For further details, please refer to Figure 4 The coupling seat 2 includes a connecting part 22 and a fixing part 23 connected together. The fixing part 23 is provided with the cable through hole 21, and the connecting part 22 is welded to the cavity 1.

[0023] As can be seen from the above description, the coupling seat 2 is welded to the cavity 1 through the connecting part 22, which can ensure the reliability and stability of the coupling between the coaxial cable 3 and the cavity 1.

[0024] Furthermore, the coupling seat 2 is a profile.

[0025] As can be seen from the above description, the manufacturing cost of the coupling seat 2 is low.

[0026] For further details, please refer to Figure 4 The coaxial cable 3 includes a core wire 31, an insulating medium 32, an outer conductor 33 and an outer sheath 34 arranged sequentially from the inside to the outside, and the coupling seat 2 is sleeved on the outer sheath 34.

[0027] As described above, the coaxial cable 3 and the cavity 1 are coupled through the coupling seat 2. The coaxial cable 3 and the cavity 1 do not need to be directly connected, so the outer sheath 34 of the coaxial cable 3 does not need to be removed. The processing cost of this cavity coupling phase shifter is low and the processing time is short.

[0028] For further details, please refer to Figure 3 It also includes a PCB board 4, which is disposed in the cavity 1. A transmission line 41 is provided on the PCB board 4, and the coaxial cable 3 is coupled to the transmission line 41.

[0029] For further details, please refer to Figure 2 The cavity 1 is provided with a first through hole 11, the coaxial cable 3 passes through the first through hole 11 and is coupled to the transmission line 41, and the first through hole 11 is arranged adjacent to the coupling seat 2.

[0030] As described above, the first through hole 11 of the cavity coupler phase shifter is arranged adjacent to the coupling seat 2, which facilitates the arrangement of a structure with a long cavity 1 and a short coaxial cable 3 to ensure the transmission efficiency of the antenna.

[0031] For further details, please refer to Figure 3 The PCB board 4 is provided with a terminal 42 for coupling the transmission line 41. The cavity 1 is provided with a second through hole 12 corresponding to the terminal 42. The first through hole 11 and the second through hole 12 are respectively provided on the adjacent side walls of the cavity 1, and the first through hole 11 and the second through hole 12 are connected.

[0032] As can be seen from the above description, the cavity coupling phase shifter can facilitate the welding of the coaxial cable 3 to the terminal 42 through the first through hole 11 and the second through hole 12.

[0033] For further details, please refer to Figure 3 and Figure 5 The PCB board 4 is provided with a phase shifter 43, which is attached to the transmission line 41.

[0034] For further details, please refer to Figure 4 The cavity 1 has a through receiving hole 13 along its length, and positioning grooves 14 are provided on the opposite side walls of the receiving hole 13.

[0035] As can be seen from the above description, cavity 1 has good positioning and fixing capabilities for the PCB.

[0036] Example 1 Embodiment 1 of this utility model is as follows: Please refer to Figure 1This embodiment provides a cavity coupling phase shifter, including a cavity 1, a coupling seat 2 and a coaxial cable 3. The coupling seat 2 is disposed on the cavity 1, and the coaxial cable 3 is disposed on the coupling seat 2, so that the coaxial cable 3 is coupled to the cavity 1 through the coupling seat 2.

[0037] The cavity coupling phase shifter does not require electroplating of the cavity 1 or coaxial cable 3 during manufacturing. Furthermore, the coaxial cable 3 does not need to be soldered to the cavity 1 of the phase shifter. The cavity coupling phase shifter does not require electroplating, resulting in short processing time and low cost. Moreover, the coupling effect between the coaxial cable 3 and the cavity 1 will not be adversely affected by the wear and peeling of the electroplating layer. The cavity coupling phase shifter has a long service life.

[0038] Please refer to Figure 2 and Figure 4 In this embodiment, the coupling seat 2 is provided with a cable through hole 21, through which the coaxial cable 3 passes. Specifically, the coupling seat 2 includes a connecting part 22 and a fixing part 23 connected together. The fixing part 23 is provided with the cable through hole 21, and the connecting part 22 is disposed on the cavity 1. The coupling seat 2 provided in this embodiment is a profile. Specifically, after the coupling seat 2 is cut from the profile, the connecting part 22 of the coupling seat 2 is laser welded to the outer wall of the cavity 1. The processing time of the coupling seat 2 and the cavity 1 is short and the cost is low.

[0039] Please refer to Figure 4 In this embodiment, the coaxial cable 3 includes a core wire 31, an insulating medium 32, an outer conductor 33 and an outer sheath 34 arranged sequentially from the inside to the outside, and the coupling seat 2 is sleeved on the outer sheath 34.

[0040] Existing phase shifters require removing the outer sheath 34 of the coaxial cable 3 and then soldering the outer conductor 33 onto the electroplated cavity 1, resulting in high cost and environmental unfriendliness. In contrast, the cavity-coupled phase shifter provided in this embodiment couples the coaxial cable 3 and the cavity 1 via a coupling seat 2. The outer sheath 34 of the coaxial cable 3 does not need to be removed, and the outer conductor 33 cannot be directly connected to the cavity 1, thus enabling capacitive coupling between the coaxial cable 3 and the cavity 1.

[0041] Please refer to Figure 3 In this embodiment, the cavity 1 is provided with a first through hole 11, through which the coaxial cable 3 passes and couples with the transmission line 41. The first through hole 11 is arranged adjacent to the coupling seat 2. The first through hole 11 of this cavity coupling phase shifter is arranged adjacent to the coupling seat 2, which facilitates the configuration of a structure with a long cavity 1 and a short coaxial cable 3 to ensure the transmission efficiency of the antenna.

[0042] Please refer to Figure 2In this embodiment, the PCB board 4 is provided with terminals 42 for coupling the transmission line 41, and the cavity 1 is provided with a second through hole 12 corresponding to the terminal 42. The first through hole 11 and the second through hole 12 are respectively provided on the adjacent side walls of the cavity 1, and the first through hole 11 and the second through hole 12 are connected. Specifically, the core wire 31 of the coaxial cable 3 is bent and passes through the first through hole 11 so that the core wire 31 is welded and coupled to the terminal 42. The second through hole 12 facilitates the welding operation between the core wire 31 and the terminal 42.

[0043] In this embodiment, refer to Figure 4 and Figure 5 The PCB board 4 has a phase shifter 43, which is attached to the transmission line 41. Specifically, the PCB board 4 has transmission lines 41 on both opposite sides, and the PCB board 4 has a connection hole 44 corresponding to the transmission line 41. A connecting post 45 is provided between the transmission lines 41 on both opposite sides of the PCB board 4, and the connecting post 45 passes through the connection hole 44. Correspondingly, the PCB board 4 has a phase shifter 43 on both opposite sides, and the phase shifter 43 has a bonding part 431 corresponding to the transmission line 41, so that the bonding part 431 is attached to the transmission line 41.

[0044] In summary, the cavity coupling phase shifter provided by this utility model has a coupling seat 2 on the cavity 1, wherein the coupling seat 2 is welded to the cavity 1 to form a whole, and the coaxial cable 3 is disposed on the coupling seat 2, so that the coaxial cable 3 and the cavity 1 are coupled through the coupling seat 2. The cavity coupling phase shifter provided by this utility model does not require electroplating of the cavity 1 or the coaxial cable 3, the service life of the cavity coupling phase shifter is not affected by the electroplating layer, and the processing cost and processing time of the cavity coupling phase shifter are low.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cavity-coupled phase shifter, characterized in that, It includes a cavity, a coupling seat, and a coaxial cable. The coupling seat is disposed on the cavity, and the coaxial cable is disposed on the coupling seat, so that the coaxial cable is coupled to the cavity through the coupling seat.

2. The cavity-coupled phase shifter according to claim 1, characterized in that, The coupling seat has a cable through hole, through which the coaxial cable passes.

3. The cavity coupling phase shifter according to claim 2, characterized in that, The coupling seat includes a connecting part and a fixing part connected together. The fixing part is provided with the cable through hole, and the connecting part is provided on the cavity.

4. The cavity-coupled phase shifter according to claim 1, characterized in that, The coupling seat is a profile.

5. The cavity-coupled phase shifter according to claim 1, characterized in that, The coaxial cable includes, from the inside out, a core wire, an insulating medium, an outer conductor, and an outer sheath, and the coupling seat is sleeved on the outer sheath.

6. The cavity-coupled phase shifter according to claim 1, characterized in that, It also includes a PCB board, which is disposed in the cavity, and a transmission line is provided on the PCB board, and the coaxial cable is coupled to the transmission line.

7. The cavity-coupled phase shifter according to claim 6, characterized in that, The cavity is provided with a first through hole, through which the coaxial cable passes and couples with the transmission line. The first through hole is disposed adjacent to the coupling seat.

8. The cavity-coupled phase shifter according to claim 7, characterized in that, The PCB board is provided with terminals for coupling the transmission line, and the cavity is provided with a second through hole corresponding to the terminal. The first through hole and the second through hole are respectively provided on the adjacent side walls of the cavity, and the first through hole and the second through hole are connected.

9. The cavity-coupled phase shifter according to claim 6, characterized in that, The PCB board is provided with a phase shifter, which is attached to the transmission line.

10. The cavity-coupled phase shifter according to claim 6, characterized in that, The cavity has a through-hole along its length, and positioning grooves are provided on the opposite side walls of the through-hole.

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