Radiating unit and base station antenna

Abstract

The utility model discloses a radiation unit and a base station antenna, the radiation unit comprises a pedestal, a radiator and at least one feed assembly, and the pedestal is provided with a through hole; the radiator is connected to the base through a supporting arm, and the radiator comprises at least one polarization formed by a symmetric dipole binary array; one feed assembly is arranged corresponding to one polarized dipole binary array, each feed assembly comprises a combining piece, a connecting piece and two electric coupling substrates, coupling circuits are arranged on the electric coupling substrates, each coupling circuit is electrically coupled with two dipoles in one dipole binary array, and the electric coupling substrates are fixed on the supporting arms; the circuit combining part is arranged on the base, the circuit combining part and the base jointly form a micro-strip structure or an air micro-strip structure, the two ends of the circuit combining part respectively form connecting ends, the two connecting ends of the circuit combining part are welded to the coupling circuits on the two electric coupling substrates respectively, and the connecting part penetrates through the through hole and is connected with the circuit combining part. The radiation unit is novel in structure and good in intermodulation stability.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to radiating elements and base station antennas. Background Technology

[0002] Chinese invention patent application number 202311269103.3 discloses a radiating unit that uses a coaxial cable as a feeder arm welded to the combiner. However, in actual manufacturing, the weld joint between the coaxial cable and the combiner is difficult to control, resulting in low intermodulation stability of the radiating unit. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a radiating element with high intermodulation stability and a base station antenna having the radiating element.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a radiating unit, comprising:

[0005] A base, wherein a through hole is provided on the base;

[0006] A radiator, which is connected to the base via a support arm, includes at least one polarization consisting of a symmetrical dipole binary array.

[0007] At least one power supply component is provided, each power supply component corresponding to a polarized dipole binary array. The power supply component includes a combiner, a connector, and two electrically coupled substrates. The electrically coupled substrates are provided with coupling lines, each of which is electrically coupled to two dipoles in one of the dipole binary arrays. The electrically coupled substrates are fixed to the support arm. The combiner is disposed on the base, and the combiner and the base together form a microstrip structure or an air microstrip structure. Both ends of the combiner are respectively formed as connection ends. The two connection ends of the combiner are respectively welded to the coupling lines on the two electrically coupled substrates. The connector passes through the through hole, and one end of the connector is connected to the combiner, and the other end is used to connect to an external power supply cable.

[0008] Furthermore, the combining component and the connecting component are integrally formed, or the connecting component and the combining component are directly connected or coupled together.

[0009] Furthermore, the connection position between the connector and the combiner is equal to the transmission path between the two connection ends of the combiner.

[0010] Furthermore, it also includes an insulating component, through which the combining component is fixed to the base.

[0011] Furthermore, the insulating component is thermally fused to the combining component and the base, respectively.

[0012] Furthermore, the electrically coupled substrate is fixed to the support arm by a snap-fit ​​device.

[0013] Furthermore, the electrocoupled substrate is provided with positioning holes, and the support arm is provided with positioning protrusions that cooperate with the positioning holes.

[0014] Furthermore, the positioning protrusion is provided with a positioning groove for positioning the buckle.

[0015] Furthermore, the wall surface of the positioning groove is a second guide surface for guiding the buckle, and the second guide surface is an inclined surface or an arc surface.

[0016] To solve the above-mentioned technical problems, the present invention also adopts the following technical solution: a base station antenna, including the above-mentioned radiating element.

[0017] The beneficial effects of this utility model are as follows: The structure of this radiating unit is novel. It uses an electrically coupled substrate to replace the coaxial line. Compared with welding the combiner to the coaxial line, the welding point of the combiner to the electrically coupled substrate is more controllable, which is conducive to improving the intermodulation stability of the radiating unit and enhancing the performance of the radiating unit. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the radiating unit structure;

[0019] Figure 2 for Figure 1 Enlarged view of detail A in the middle;

[0020] Figure 3 A schematic diagram of part of the structure of the radiating unit. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the fastener structure in the radiating unit;

[0022] Figure 5 A schematic diagram of part of the structure of the radiating unit. Figure 2 .

[0023] Label Explanation:

[0024] 1. Base; 11. Through hole;

[0025] 2. Radiator;

[0026] 3. Power supply assembly; 31. Combiner; 311. Connector; 32. Connector; 33. Electrical coupling substrate; 331. Positioning hole; 34. Coupling line; 341. First segment; 342. Second segment; 343. Third segment;

[0027] 4. Support arm; 41. Positioning protrusion; 411. First guide surface; 412. Positioning groove; 413. Second guide surface;

[0028] 5. Insulating components;

[0029] 6. Fasteners. 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 Radiating unit, including:

[0032] Base 1, wherein a through hole 11 is provided on the base 1;

[0033] Radiator 2, which is connected to the base 1 via a support arm 4, includes at least one polarization composed of a symmetrical dipole binary array;

[0034] At least one power supply component 3 is provided, each power supply component 3 corresponding to a polarized dipole binary array. The power supply component 3 includes a combiner 31, a connector 32, and two electrically coupled substrates 33. The electrically coupled substrates 33 are provided with coupling lines 34, each of which is electrically coupled to two dipoles in one of the dipole binary arrays. The electrically coupled substrates 33 are fixed on the support arm 4. The combiner 31 is disposed on the base 1. The combiner 31 and the base 1 together form a microstrip structure or an air microstrip structure. Both ends of the combiner 31 are respectively formed as connection ends 311. The two connection ends 311 of the combiner 31 are respectively welded to the coupling lines 34 on the two electrically coupled substrates 33. The connector 32 passes through the through hole 11, and one end of the connector 32 is connected to the combiner 31, and the other end is used to connect to an external power supply cable.

[0035] As can be seen from the above description, the beneficial effects of this utility model are as follows: The structure of this radiating unit is novel. It uses an electrically coupled substrate 33 to replace the coaxial line. Compared with the welding of the combiner 31 to the coaxial line, the welding point of the combiner 31 to the electrically coupled substrate 33 is more controllable, which is conducive to improving the intermodulation stability of the radiating unit and enhancing the performance of the radiating unit.

[0036] Furthermore, the combining component 31 and the connecting component 32 are integrally formed, or the connecting component 32 and the combining component 31 are directly connected or coupled together.

[0037] As can be seen from the above description, there are multiple ways to connect the combiner 31 and the connector 32, which helps to enrich the diversity of the radiating units.

[0038] Furthermore, the connection position between the connector 32 and the combiner 31 is equal to the transmission path between the two connection ends 311 of the combiner 31.

[0039] As described above, the lengths between the connection points of the connector 32 and the combiner 31 and the two connection ends 311 of the combiner 31 are equal. Thus, during signal transmission, the external signal travels the same distance to the two connection ends 311 of the combiner 31, making the signal transmission more synchronized and reducing the loss of the radiation unit.

[0040] Furthermore, it also includes an insulating component 5, through which the combining component 31 is fixed to the base 1.

[0041] Furthermore, the insulating component 5 is thermally fused to the combining component 31 and the base 1 respectively.

[0042] As can be seen from the above description, the specific installation method of the combiner 31 and the base 1 is simple and reliable.

[0043] Furthermore, the electrically coupled substrate 33 is fixed to the support arm 4 by a snap fastener 6.

[0044] As can be seen from the above description, the electrically coupled substrate 33 is easy to assemble and disassemble.

[0045] Furthermore, the electrically coupled substrate 33 is provided with a positioning hole 331, and the support arm 4 is provided with a positioning protrusion 41 that cooperates with the positioning hole 331.

[0046] As can be seen from the above description, the cooperation between the positioning hole 331 and the positioning protrusion 41 enables the electrocoupled substrate 33 to be accurately positioned on the support arm 4, which helps to improve production consistency.

[0047] Furthermore, the positioning protrusion 41 is provided with a positioning groove 412 for positioning the buckle 6.

[0048] As can be seen from the above description, the presence of the positioning groove 412 can effectively position the fastener 6, which helps to improve production consistency to a greater extent.

[0049] Furthermore, the wall surface of the positioning groove 412 is a second guide surface 413 for guiding the buckle 6, and the second guide surface 413 is an inclined surface or an arc surface.

[0050] As can be seen from the above description, the presence of the second guide surface 413 facilitates the positioning and installation of the fastener 6, which helps to improve production efficiency.

[0051] The base station antenna includes the aforementioned radiating element.

[0052] As can be seen from the above description, the base station antenna has at least all the beneficial effects of the aforementioned radiating element.

[0053] Please refer to Figures 1 to 5 The first embodiment of this utility model is as follows: a radiating unit, including a base 1, a radiator 2, and at least one feeding component 3. The base 1 is provided with a through hole 11. The radiator 2 is connected to the base 1 via a support arm 4. The radiator 2 includes at least one polarization composed of a symmetrical dipole binary array. One feeding component 3 is provided corresponding to one polarization of the dipole binary array. The feeding component 3 includes a combiner 31, a connector 32, and two electrically coupled substrates 33. The electrically coupled substrates 33 are provided with coupling lines 34, that is, the electrically coupled substrates 33 can be PCB boards. Each coupling line 34 is respectively connected to one of the polarizations of the radiator 1. Two dipoles in the dipole binary array are electrically coupled, and the electrically coupled substrate 33 is fixed on the support arm 4; the combiner 31 is disposed on the base 1, and the combiner 31 and the base 1 together form a microstrip structure or an air microstrip structure, and the two ends of the combiner 31 respectively form connection ends 311. The two connection ends 311 of the combiner 31 are respectively welded to the coupling lines 34 on the two electrically coupled substrates 33. The connector 32 passes through the through hole 11, and one end of the connector 32 is connected to the combiner 31, and the other end is used to connect to an external power supply cable to introduce external signals.

[0054] The coupling line 34 includes a first segment 341, a second segment 342, and a third segment 343 connected in sequence. The first segment 341 and the third segment 343 are both located on the same side of the second segment 342. The first segment 341 is parallel to the third segment 343. The length of the first segment 341 is greater than the length of the third segment 343. The end of the first segment 341 away from the second segment 342 is welded to the connection end 311 for conduction. The second segment 342 is perpendicular to both the first segment 341 and the third segment 343.

[0055] The surface of the electrical coupling substrate 33 has a solder resist layer, which means that the solder joints formed by welding the electrical coupling substrate 33 and the coupling line 34 will only cover the welding area at the end of the coupling line 34, and its controllability is extremely high.

[0056] In this embodiment, the radiating unit has the combiner 31 mounted on the base 1, reducing the intermodulation risk of external combiners and decreasing the loss of the radiating unit. Furthermore, separating the electrical coupling substrate 33 and the combiner 31 makes installation more convenient and reduces the maintenance cost of the radiating unit. The separate electrical coupling substrate 33 and combiner 31 also simplify the manufacturing process, reduce deformation during installation, improve the overall stability of the base station antenna, simplify the assembly process, increase production efficiency, and lower the antenna production cost.

[0057] The combining component 31 and the connecting component 32 are integrally formed, or the connecting component 32 is directly connected or coupled to the combining component 31.

[0058] The connection point between the connector 32 and the combiner 31 is located between the two connecting ends 311 of the combiner 31. Preferably, the connection point between the connector 32 and the combiner 31 is equal to the transmission path between the two connecting ends 311 of the combiner 31.

[0059] The radiating unit also includes an insulating component 5, and the combining component 31 is fixed to the base 1 via the insulating component 5. In this embodiment, the insulating component 5 is thermally fused to both the combining component 31 and the base 1.

[0060] To facilitate the fixed installation of the electro-coupling substrate 33 and the support plate, in this embodiment, the electro-coupling substrate 33 is fixed to the support arm 4 by a snap fastener 6.

[0061] The electrocoupled substrate 33 is provided with a positioning hole 331, and the support arm 4 is provided with a positioning protrusion 41 that mates with the positioning hole 331, so that the electrocoupled substrate 33 can be accurately positioned on the support arm 4. To facilitate the positioning and installation of the electrocoupled substrate 33, optionally, the end face of the positioning protrusion 41 is a first guide surface 411 for guiding the electrocoupled substrate 33, and the first guide surface 411 is a slope or an arc surface.

[0062] In one or more embodiments, the positioning protrusion 41 is provided with a positioning groove 412 for positioning the fastener 6. Preferably, the wall surface of the positioning groove 412 is a second guide surface 413 for guiding the fastener 6, and the second guide surface 413 is an inclined surface or an arc surface.

[0063] This embodiment also provides a base station antenna, which includes the aforementioned radiating element.

[0064] 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 radiating unit, characterized in that, include A base, wherein a through hole is provided on the base; A radiator, which is connected to the base via a support arm, includes at least one polarization consisting of a symmetrical dipole binary array. At least one power supply component, one power supply component is configured to correspond to a polarized dipole binary array, the power supply component includes a combiner, a connector and two electrically coupled substrates, the electrically coupled substrates are provided with coupling lines, each of the coupling lines is electrically coupled to two dipoles in one of the dipole binary arrays, and the electrically coupled substrates are fixed on the support arm; The combiner is disposed on the base, and the combiner and the base together form a microstrip structure or an air microstrip structure. Both ends of the combiner are respectively formed as connection ends. The two connection ends of the combiner are respectively welded to the coupling lines on the two electrical coupling substrates. The connector passes through the through hole, and one end of the connector is connected to the combiner, and the other end is used to connect to the external power supply cable.

2. The radiating unit according to claim 1, characterized in that, The combining component and the connecting component are integrally formed, or the connecting component and the combining component are directly connected or coupled together.

3. The radiating element according to claim 1, characterized in that, The connection position between the connector and the combiner is equal to the transmission path between the two connection ends of the combiner.

4. The radiating element according to claim 1, characterized in that, It also includes an insulating component, through which the combining component is fixed to the base.

5. The radiating unit according to claim 4, characterized in that, The insulating component is thermally fused to the combining component and the base respectively.

6. The radiating element according to claim 1, characterized in that, The electrocoupled substrate is fixed to the support arm by a snap fastener.

7. The radiating element according to claim 6, characterized in that, The electrocoupled substrate is provided with positioning holes, and the support arm is provided with positioning protrusions that cooperate with the positioning holes.

8. The radiating element according to claim 7, characterized in that, The positioning protrusion is provided with a positioning groove for positioning the buckle.

9. The radiating element according to claim 8, characterized in that, The wall of the positioning groove is a second guide surface for guiding the buckle, and the second guide surface is an inclined surface or an arc surface.

10. A base station antenna, characterized in that, Includes the radiating element as described in any one of claims 1 to 9.

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