A base station antenna with a cableless phase shifter

Abstract

The utility model discloses a base station antenna with cableless phase shifter, including phase shifter, reflector, radiating unit and feed pin subassembly, phase shifter includes cavity and be equipped with in the phase shift circuit board of cavity, be equipped with first feed network on the phase shift circuit board, the top board of cavity is equipped with first perforation, the reflector is connected the top board of cavity, is equipped with second perforation on the reflector, and second perforation intercommunication first perforation forms mounting hole, radiating unit is equipped with on the reflector, and radiating unit has second feed network, and is equipped with the third perforation of intercommunication second perforation on radiating unit, feed pin subassembly includes feed needle and the insulator of setting on feed needle, and the insulator is installed in mounting hole, and the bottom of insulator is in contact with the top of phase shift circuit board, and the bottom of feed needle is welded with first feed network and is conducted through, the whole structure of this base station antenna is simple, and the convenient assembly, and the insulator is in contact with the phase shift circuit board directly, and the machining precision requirement of first perforation is low.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a base station antenna with a cableless phase shifter. Background Technology

[0002] A base station antenna includes a phase shifter, a reflector, and a radiating element mounted on the reflector. The phase shifter includes a cavity fixedly connected to the reflector, and a phase shifting circuit board is installed inside the cavity. The phase shifting circuit board has a first feed network. In the traditional base station antenna architecture, the first feed network is usually connected to the radiating element by welding coaxial cables, which results in complicated cables during installation, inconvenient operation, and inability to achieve automated welding. In addition, the base station antenna is heavy and costly. Due to the obstruction of numerous cables, it is difficult to make the connection nodes between various components visible and accessible, making repairs extremely inconvenient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a base station antenna with a simple structure and convenient assembly, which has a cable-free phase shifter.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a base station antenna with a cableless phase shifter, comprising:

[0005] A phase shifter, comprising a cavity and a phase shifting circuit board disposed within the cavity, the phase shifting circuit board having a first power supply network, and the top plate of the cavity having a first through hole;

[0006] A reflector plate is connected to the top plate of the cavity, and a second through hole is provided on the reflector plate, the second through hole communicating with the first through hole to form a mounting hole;

[0007] A radiating unit is disposed on the reflector plate, the radiating unit has a second power supply network, and the radiating unit is provided with a third through hole that connects to the second through hole;

[0008] A power supply pin assembly includes a power supply pin and an insulator sleeved on the power supply pin. The insulator is installed in the mounting hole. The bottom end of the insulator abuts against the top end of the phase shifting circuit board. The bottom end of the power supply pin is soldered to the first power supply network for conduction. The top end of the power supply pin passes through the third through hole and is soldered to the second power supply network for conduction.

[0009] Furthermore, the side plate of the cavity is provided with a welding port, which corresponds to the welding point between the feed needle and the first power supply network.

[0010] Furthermore, the top plate of the cavity protrudes relative to the side plate of the cavity, and the edge of the top plate of the cavity is provided with a clearance opening, which is provided corresponding to the weld joint.

[0011] Furthermore, a partition plate is provided inside the cavity, and the phase-shifting circuit board is provided on both sides of the partition plate.

[0012] Furthermore, the partition plate and the cavity are integrally formed into a single structure.

[0013] Furthermore, the top surface of the top plate of the cavity is provided with multiple protrusions, and the bottom surface of the reflector plate abuts against the top surface of the protrusions.

[0014] Furthermore, the boss is provided with a threaded hole, the reflector plate has a through hole corresponding to the threaded hole, and also includes a fastening screw, one end of which passes through the through hole and is threadedly connected to the threaded hole.

[0015] Furthermore, the insulator is cylindrical, polygonal, or elliptical.

[0016] Furthermore, the number of radiation units is multiple, and the radiation units are arranged in multiple columns. An isolation plate is provided between two adjacent columns of radiation units, and the isolation plate is fixed to the reflector and is in communication with the reflector.

[0017] Furthermore, the radiating unit includes a radiating circuit board and a vibrator disposed on the radiating circuit board. The vibrator is connected to the radiating circuit board. The second power supply network and the third through hole are both disposed on the radiating circuit board. The radiating circuit board is fixed on the reflector.

[0018] The beneficial effects of this utility model are as follows: This base station antenna with a cable-free phase shifter utilizes the feed pin assembly to conduct the phase shift circuit board and the radiating unit, greatly simplifying the structure of the base station antenna and making the overall structure of the base station antenna look more concise and convenient for the assembly of the base station antenna. In addition, this base station antenna has a small overall weight, low manufacturing cost, and no cable obstruction, which makes the connection nodes between various components visible and accessible, facilitating repair. The insulator of the feed pin assembly directly abuts the top of the phase shift circuit board, which can reduce the processing accuracy requirements of the first through hole, and facilitate the processing of the first through hole while ensuring the consistency of base station antenna production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a base station antenna with a cableless phase shifter.

[0020] Figure 2 for Figure 1 Enlarged view of detail A in the middle;

[0021] Figure 3 A cross-sectional view of a base station antenna with a cableless phase shifter;

[0022] Figure 4 This is a schematic diagram of the phase shifter in a base station antenna with a cableless phase shifter.

[0023] Figure 5 This is a front view of the phase shifter in a base station antenna with a cableless phase shifter.

[0024] Label Explanation:

[0025] 1. Phase shifter; 11. Cavity; 111. Top plate; 112. Side plate; 113. Weld joint; 114. Clearance opening; 115. Partition plate; 116. Boss; 117. Threaded hole; 12. Phase shifting circuit board; 121. First power supply network;

[0026] 2. Reflector; 21. Isolation plate;

[0027] 3. Radiation unit; 31. Radiation circuit board; 311. Second feed network; 312. Third through-hole; 32. Vibrator;

[0028] 4. Feeding pin assembly; 41. Feeding pin; 42. Insulator;

[0029] 5. Mounting holes. Detailed Implementation

[0030] 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.

[0031] Please refer to Figures 1 to 5 A base station antenna with a cable-free phase shifter includes a phase shifter 1, a reflector 2, a radiating element 3, and a feed pin assembly 4. The phase shifter 1 includes a cavity 11 and a phase shifting circuit board 12 disposed within the cavity 11. The phase shifting circuit board 12 is provided with a first feed network 121. A first through hole is provided on the top plate 111 of the cavity 11. The reflector 2 is connected to the top plate 111 of the cavity 11. A second through hole is provided on the reflector 2, and the second through hole communicates with the first through hole to form a mounting hole 5. The radiating element 3 is disposed on the reflector 2. The radiating unit 3 has a second power supply network 311, and the radiating unit 3 is provided with a third through hole 312 that connects to the second through hole; the power supply needle assembly 4 includes a power supply needle 41 and an insulator 42 sleeved on the power supply needle 41. The insulator 42 is installed in the mounting hole 5. The bottom end of the insulator 42 abuts against the top end of the phase shifting circuit board 12. The bottom end of the power supply needle 41 is welded to the first power supply network 121 for conduction. The top end of the power supply needle 41 passes through the third through hole 312 and is welded to the second power supply network 311 for conduction.

[0032] As can be seen from the above description, the beneficial effects of this utility model are as follows: This base station antenna with a cable-free phase shifter utilizes the feed pin assembly 4 to conduct the phase shift circuit board 12 and the radiating unit 3, which greatly simplifies the structure of the base station antenna, making the overall structure of the base station antenna look more concise and convenient for the assembly of the base station antenna. In addition, the base station antenna has a small overall weight, low manufacturing cost, and no cable obstruction, which makes the connection nodes between various components visible and accessible, facilitating repair. The insulator 42 of the feed pin assembly 4 directly abuts against the top of the phase shift circuit board 12, which can reduce the processing accuracy requirements of the first through hole, and facilitate the processing of the first through hole while ensuring the consistency of base station antenna production.

[0033] Furthermore, the side plate 112 of the cavity 11 is provided with a welding port 113, which corresponds to the welding point between the feed needle 41 and the first power supply network 121.

[0034] As can be seen from the above description, the presence of the welding joint 113 allows the feed pin 41 to be side-welded to the phase-shifting circuit board 12.

[0035] Furthermore, the top plate 111 of the cavity 11 protrudes relative to the side plate 112 of the cavity 11, and the edge of the top plate 111 of the cavity 11 is provided with a clearance opening 114, which is provided corresponding to the welding joint 113.

[0036] As can be seen from the above description, the clearance opening 114 can allow the welding head to pass.

[0037] Furthermore, a partition plate 115 is provided inside the cavity 11, and the phase-shifting circuit board 12 is provided on both sides of the partition plate 115.

[0038] As can be seen from the above description, phase shifter 1 has a compact structure and is easier to process and manufacture.

[0039] Furthermore, the partition plate 115 and the cavity 11 are integrally formed into a single structure.

[0040] As can be seen from the above description, the partition plate 115 and the cavity 11 are an integral structure, which facilitates processing and production.

[0041] Furthermore, the top surface of the top plate 111 of the cavity 11 is provided with a plurality of protrusions 116, and the bottom surface of the reflector 2 abuts against the top surface of the protrusions 116.

[0042] As can be seen from the above description, the protrusion 116 and the reflector 2 are sufficiently grounded, which makes the intermodulation stability of the base station antenna good.

[0043] Furthermore, the boss 116 is provided with a threaded hole 117, the reflector 2 has a through hole corresponding to the threaded hole 117, and also includes a fastening screw, one end of which passes through the through hole and is threadedly connected to the threaded hole 117.

[0044] As can be seen from the above description, the connection between the reflector 2 and the cavity 11 is stable.

[0045] Furthermore, the insulator 42 is cylindrical, polygonal, or elliptical.

[0046] As can be seen from the above description, the specific shape of the insulator 42 can be selected as needed.

[0047] Furthermore, there are multiple radiation units 3 arranged in multiple columns, with an isolation plate 21 between adjacent columns of radiation units 3. The isolation plate 21 is fixed on the reflector 2 and is in communication with the reflector 2.

[0048] As can be seen from the above description, the installation of the isolation plate 21 can improve the performance of the base station antenna to a certain extent.

[0049] Furthermore, the radiation unit 3 includes a radiation circuit board 31 and an oscillator 32 disposed on the radiation circuit board 31. The oscillator 32 is connected to the radiation circuit board 31. The second power supply network 311 and the third through hole 312 are both disposed on the radiation circuit board 31. The radiation circuit board 31 is fixed on the reflector 2.

[0050] Please refer to Figures 1 to 5 The first embodiment of this utility model is as follows: a base station antenna with a cableless phase shifter, including a phase shifter 1, a reflector 2, a radiating element 3, and a feed pin assembly 4. The phase shifter 1 includes a cavity 11 and a phase shifting circuit board 12 disposed within the cavity 11. The phase shifting circuit board 12 is provided with a first feed network 121. The top plate 111 of the cavity 11 is provided with a first through hole. The reflector 2 is connected to the top plate 111 of the cavity 11. The reflector 2 is provided with a second through hole, which communicates with the first through hole to form a mounting hole 5. The radiating element 3 is disposed on the reflector 2. The radiating unit 3 has a second power supply network 311, and the radiating unit 3 is provided with a third through hole 312 that connects to the second through hole; the power supply needle assembly 4 includes a power supply needle 41 and an insulator 42 sleeved on the power supply needle 41. Preferably, the power supply needle 41 is a 50-ohm metal needle. The insulator 42 is installed in the mounting hole 5. The bottom end of the insulator 42 abuts against the top end of the phase shifting circuit board 12. The bottom end of the power supply needle 41 is welded to the first power supply network 121 for conduction. The top end of the power supply needle 41 passes through the third through hole 312 and is welded to the second power supply network 311 for conduction.

[0051] The insulator 42 is cylindrical, polygonal, elliptical, or other shapes, including but not limited to triangular, quadrangular, pentagonal, and hexagonal prisms.

[0052] Specifically, the radiation unit 3 includes a radiation circuit board 31 and an oscillator 32 disposed on the radiation circuit board 31. The oscillator 32 is connected to the radiation circuit board 31. The second power supply network 311 and the third through hole 312 are both disposed on the radiation circuit board 31. The radiation circuit board 31 is fixed on the reflector 2.

[0053] The side plate 112 of the cavity 11 is provided with a welding port 113, which corresponds to the welding point between the feed needle 41 and the first power supply network 121. An external welding head can weld the feed needle 41 and the first power supply network 121 through the welding port 113.

[0054] In one or more embodiments, the top plate 111 of the cavity 11 protrudes relative to the side plate 112 of the cavity 11, and the edge of the top plate 111 of the cavity 11 is provided with a clearance opening 114, which is provided corresponding to the weld joint 113.

[0055] In this embodiment, a partition plate 115 is provided inside the cavity 11, and the phase-shifting circuit board 12 is provided on both sides of the partition plate 115. Preferably, the partition plate 115 and the cavity 11 are integrally formed.

[0056] In some embodiments, the top surface of the top plate 111 of the cavity 11 is provided with a plurality of protrusions 116, and the bottom surface of the reflector 2 abuts against the top surface of the protrusions 116. Optionally, the protrusions 116 are provided with threaded holes 117, and the reflector 2 has a through hole corresponding to the threaded hole 117. The base station antenna with a cableless phase shifter also includes a fastening screw, one end of which passes through the through hole and is threadedly connected to the threaded hole 117.

[0057] The number of radiation units 3 is multiple. Optionally, the radiation units 3 are arranged in multiple rows. Preferably, an isolation plate 21 is provided between two adjacent rows of radiation units 3. The isolation plate 21 is fixed to the reflector 2 and is in communication with the reflector 2. In some embodiments, the isolation plate 21 is welded to the reflector 2 or fastened to it by fasteners.

[0058] 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 base station antenna with a cableless phase shifter, characterized in that, include A phase shifter, comprising a cavity and a phase shifting circuit board disposed within the cavity, the phase shifting circuit board having a first power supply network, and the top plate of the cavity having a first through hole; A reflector plate is connected to the top plate of the cavity, and a second through hole is provided on the reflector plate, the second through hole communicating with the first through hole to form a mounting hole; A radiating unit is disposed on the reflector plate, the radiating unit has a second power supply network, and the radiating unit is provided with a third through hole that connects to the second through hole; A power supply pin assembly includes a power supply pin and an insulator sleeved on the power supply pin. The insulator is installed in the mounting hole. The bottom end of the insulator abuts against the top end of the phase shifting circuit board. The bottom end of the power supply pin is soldered to the first power supply network for conduction. The top end of the power supply pin passes through the third through hole and is soldered to the second power supply network for conduction.

2. A base station antenna with a cableless phase shifter according to claim 1, characterized in that, The side plate of the cavity is provided with a welding port, which is provided at the welding point between the feed needle and the first power supply network.

3. A base station antenna with a cableless phase shifter according to claim 2, characterized in that, The top plate of the cavity protrudes relative to the side plate of the cavity, and the edge of the top plate of the cavity is provided with a clearance opening, which is provided corresponding to the weld joint.

4. A base station antenna with a cableless phase shifter according to claim 1, characterized in that, The cavity is provided with a partition plate, and the phase-shifting circuit board is provided on both sides of the partition plate.

5. A base station antenna with a cableless phase shifter according to claim 4, characterized in that, The partition plate and the cavity are integrally formed into a single structure.

6. A base station antenna with a cableless phase shifter according to claim 1, characterized in that, The top surface of the top plate of the cavity is provided with multiple protrusions, and the bottom surface of the reflector plate abuts against the top surface of the protrusions.

7. A base station antenna with a cableless phase shifter according to claim 6, characterized in that, The boss is provided with a threaded hole, the reflector plate has a through hole corresponding to the threaded hole, and also includes a fastening screw, one end of which passes through the through hole and is threadedly connected to the threaded hole.

8. A base station antenna with a cableless phase shifter according to claim 1, characterized in that, The insulator is cylindrical, polygonal, or elliptical.

9. A base station antenna with a cableless phase shifter according to claim 1, characterized in that, The number of radiation units is multiple, and the radiation units are arranged in multiple columns. An isolation plate is provided between two adjacent columns of radiation units. The isolation plate is fixed on the reflector and is in communication with the reflector.

10. A base station antenna with a cableless phase shifter according to claim 1, characterized in that, The radiating unit includes a radiating circuit board and a vibrator disposed on the radiating circuit board. The vibrator is connected to the radiating circuit board. The second power supply network and the third through hole are both disposed on the radiating circuit board. The radiating circuit board is fixed on the reflector plate.

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