Radiator assembly for a base station antenna and base station antenna

Abstract

This invention relates to a radiator assembly for a base station antenna, comprising: two cross-arranged dipoles, each dipole including two dipole arms (1); and two feed lines, each feed line mating with one of the dipoles (1). Each dipole arm (1) is integrally formed from a metal plate, and each dipole arm (1) includes a radiating surface and a leg extending from the radiating surface at an angle to the radiating surface, the leg being electrically grounded. The invention also relates to a base station antenna including such a radiator assembly. The radiator assembly according to the invention has a simple structure and can be easily and inexpensively manufactured.

Description

Technical Field

[0001] This invention relates to the field of communications, and more specifically, to a radiator assembly for a base station antenna and a base station antenna including such a radiator assembly. Background Technology

[0002] Mobile communication networks comprise numerous base stations, each including one or more base station antennas for receiving and transmitting communication signals. These antennas can include many radiator components, also referred to as radiating elements or antenna elements. The cost of a single radiator component significantly impacts the overall cost of the base station antenna. Minimizing the size and cost of these radiator components is therefore desirable.

[0003] Patent document WO2016081036A1 discloses a base station antenna, which includes a low-frequency band radiator array and a high-frequency band radiator array, wherein each dipole arm of a single low-frequency band radiator assembly is composed of a printed circuit board. Summary of the Invention

[0004] The object of the present invention is to provide a novel radiator assembly for a base station antenna and a base station antenna including such a radiator assembly, wherein the radiator assembly has a simple structure and can be easily and inexpensively manufactured.

[0005] According to a first aspect of the present invention, a radiator assembly for a base station antenna is provided, the radiator assembly comprising:

[0006] Two dipoles arranged in a cross configuration, each dipole comprising two dipole arms; and

[0007] Two feeder lines, each of which is paired with one of the dipoles;

[0008] Each dipole arm is integrally formed from a metal plate, and each dipole arm includes a radiating surface and a leg extending from the radiating surface at an angle to the radiating surface, the leg being electrically grounded.

[0009] In the radiator assembly according to the invention, the dipole arm can be made by stamping a metal sheet, which is simple and inexpensive in terms of manufacturing technology, and the resulting dipole arm can be shape-stable.

[0010] In some embodiments, the radiator assembly may further include:

[0011] An arm support, the arm support being configured to support each dipole arm; and / or

[0012] At least one feeder support, the feeder support being configured to support at least one of the two feeders.

[0013] Alternatively, each dipole arm may be supported by a separate support element, or every two dipole arms may be supported by a common support element.

[0014] In some embodiments, the arm support may include a base foot, a central recess, and four arm supports surrounding the central recess. The base foot is configured to secure the arm support to a substrate or reflector of a base station antenna. The central recess is configured to receive the feed line support, and the arm supports are configured to support each dipole arm.

[0015] In some embodiments, the radiating surfaces of the dipole arms are each mounted on a corresponding arm support. The arm support may, for example, have a substantially similar profile to the radiating surface and support it planarly. Alternatively, the arm support may be configured as a mesh or rod.

[0016] In some embodiments, each arm support may be equipped with a cover, and the radiating surface of each dipole arm is clamped between the arm support and the matching cover. The radiating surface may also be held on the arm support in other ways, such as by means of interference fit, by means of screw connection, adhesive, etc.

[0017] In some implementations, each arm support can be snapped onto one of the mating caps.

[0018] In some embodiments, the arm support may include a support structure for supporting the radiating surfaces of each dipole arm, the support structure including an outer ring, an inner ring, and ribs connecting the outer ring and the inner ring.

[0019] In some embodiments, the arm support may have multiple openings.

[0020] In some embodiments, the two feed lines may be integrally formed from metal plates, and each feed line may include two legs and a bottom edge connecting the two legs. Alternatively, the feed lines may be coaxial cables.

[0021] In some embodiments, the at least one feeder support may include a first feeder support that holds the bottom edges of the two feeders and such that the bottom edges of the two feeders are spaced apart from each other.

[0022] In some embodiments, the first feeder cable support may include:

[0023] The body has a first side and a second side opposite to the first side; and / or

[0024] A first snap-fit ​​element is formed on the first side and configured to form a snap-fit ​​connection with the bottom edge of one of the feed wires; and / or

[0025] A second snap-fit ​​element is formed on the second side and configured to form a snap-fit ​​connection with the bottom edge of another feeder wire.

[0026] A detachable connection can be quickly established using snap-fit ​​components, but other connection methods are also worth considering.

[0027] In some embodiments, the first feeder support may further include two through holes configured to receive two legs of one of the feeder wires. Alternatively, the body of the first feeder support may have two open recesses circumferentially for receiving and guiding the two legs of one of the feeder wires.

[0028] In some embodiments, the first feeder support may further include at least one third snap-fit ​​element extending from its body, the third snap-fit ​​element being configured to form a snap-fit ​​connection with a leg of the corresponding dipole arm.

[0029] In some embodiments, the at least one feeder support may include a second feeder support configured to guide the respective legs of the two feeders.

[0030] In some embodiments, the second feeder support may include a body and four through holes formed therein, the four through holes being configured to receive one leg of one feeder wire, respectively. Alternatively, the body of the second feeder support may have four open recesses around its circumference, these recesses being used to receive and guide one leg of one feeder wire, respectively.

[0031] In some embodiments, the second feeder support may further include at least one snap-fit ​​element extending from its body, the snap-fit ​​element of the second feeder support being configured to form a snap-fit ​​connection with a leg of the corresponding dipole arm.

[0032] In some embodiments, the radiating surfaces of the dipole arms may each have a central opening.

[0033] In some embodiments, the dipole arms may each have at least one slat bent out relative to the radiating surface, thereby extending the bandwidth of the radiator assembly.

[0034] In some embodiments, the vertical strip may be bent at an angle of 80° to 100°, for example, about 90°, relative to the radiating surface.

[0035] In some embodiments, the vertical strip may have a rectangular, triangular, or any other shape outline.

[0036] In some implementations, the legs of each dipole arm can be bent at an angle of 80° to 100°, for example, about 90°, relative to the radiating surface of the corresponding dipole arm.

[0037] In some embodiments, the feed line is electrically connected to the feed circuit of a feed board configured as a printed circuit board, or electrically connected to a phase-stabilized cable for power supply.

[0038] In some embodiments, the legs of the dipole arm are electrically connected to the ground plane of a feed board configured as a printed circuit board, or electrically connected to the reflector for electrical grounding, or capacitively coupled to the reflector for electrical grounding.

[0039] In some embodiments, the arm support and at least one feeder support are configured as separate components or as an integrally integrated component.

[0040] In some embodiments, the radiator assembly is a low-frequency band radiator.

[0041] In some implementations, each feeder may include a hook balun.

[0042] According to another aspect of the invention, a base station antenna is provided, the base station antenna including a radiator array, wherein the radiator array includes a plurality of radiator components for a base station antenna according to the first aspect of the invention.

[0043] In some embodiments, the radiator array is a low-frequency band radiator array, and the base station antenna further includes a high-frequency band radiator array. The base station antenna according to the invention can in particular be configured as a dual-band dual-polarized base station antenna.

[0044] It should also be noted that the various technical features mentioned in this application, even if they are described in different paragraphs of the specification or in different embodiments, can be arbitrarily combined with each other, as long as such combinations are technically feasible. All these combinations are technical content described in this application. Attached Figure Description

[0045] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. A brief description of the schematic drawings is as follows:

[0046] Figure 1 A perspective view of a radiator assembly according to one embodiment of the present invention is shown;

[0047] Figure 2 Display by Figure 1A series of perspective views of multiple components of the radiator assembly;

[0048] Figure 3 Display by Figure 1 and Figure 2 An exploded view of the feeder structure of the radiator assembly.

[0049] Figure 4a Display by Figures 1-3 Side view of the radiator assembly;

[0050] Figure 4b Show along Figure 4a A partial perspective view of the radiator assembly cut through section line AA in the diagram;

[0051] Figure 4c Display by Figures 1-3 A partially magnified bottom perspective view of the radiator assembly;

[0052] Figure 5 A schematic front view of a base station antenna according to one embodiment of the present invention is shown;

[0053] Figure 6 A perspective view showing a radiator assembly according to another embodiment of the present invention;

[0054] Figure 7 A perspective view showing a radiator assembly according to another embodiment of the present invention;

[0055] Figure 8 Display by Figure 7 Front view of the arm support of the radiator assembly; and

[0056] Figure 9 A perspective view showing the radiating surfaces of the four dipole arms according to one embodiment of the present invention. Detailed Implementation

[0057] Figure 1 Showing a perspective view of a radiator assembly according to one embodiment of the present invention. Figure 2 A series of perspective views showing multiple components of the radiator assembly, and Figure 3 An exploded view of the feed line structure of the radiator assembly is shown, in which the same first feed line support 5 is located... Figure 3 The description is presented from two different perspectives. This radiator assembly is particularly suitable for use as a low-frequency radiator, especially in the frequency range of 694–960 MHz.

[0058] The radiator assembly may include arm supports 10 that support four dipole arms 1. For simplicity, in Figure 2Only one dipole arm 1 is described in the text; the other three dipole arms 1 can be constructed in the same or similar manner. Every two dipole arms 1 constitute a dipole, and the two dipoles are arranged alternately.

[0059] As in Figure 2 As can be seen, the arm support 10 includes a base 13, a central recess 12, and four arm supports 11 surrounding the central recess 12. The base 13 can be configured to secure the arm support 10 to another element of the base station antenna. For example, the base 13 can be used to secure the arm support 10 to a substrate or reflector by screws. The central recess 12 can be configured to accommodate the feed line structure 7. Each arm support 11 can be configured to support one of the dipole arms 1. The arm support 10 can be made of a non-conductive material, such as plastic.

[0060] Each dipole arm 1 can be integrally formed from a metal plate, for example, by stamping. A single dipole arm 1 includes a radiating surface 1a and a leg 1b extending rearward from the radiating surface at an angle, particularly substantially perpendicular to it. The leg 1b is electrically grounded; for example, it can be in contact with the ground plane of the feed board 3 or the reflector, or it can be capacitively coupled to the ground plane of the feed board 3 or the reflector to achieve electrical grounding. For example, the dipole arm 1 can have a tin plating layer entirely or only in the area of ​​its leg 1b for soldering to the ground plane of the feed board. Alternatively, the ends of the leg 1b may have tin-plated PEM studs, thus eliminating the need for tin plating on the dipole arm 1. The feed board 3, which can be configured as a printed circuit board, may or may not be part of the radiator assembly. Alternatively, feeding can be achieved via coaxial cable or other RF transmission line structures.

[0061] Each dipole arm 1 can be inserted into the central recess 12 with its leg 1b, for example, it can rest against the inner wall of the central recess 12. Each dipole arm 1 can be supported on the arm support portion 11 of the arm support 10 with its radiating surface 1a. In some embodiments, each arm support portion 11 may have a profile substantially the same as the radiating surface 1a. In one exemplary embodiment, each radiating surface 1a may have a snap-fit ​​element for establishing a snap-fit ​​connection with a corresponding arm support portion 11. In other embodiments, each radiating surface 1a may be fastened to a corresponding arm support portion 11 by screws or adhesive. Figure 1 and Figure 2In the illustrated embodiment, each dipole arm 1 is equipped with a cover 4, the radiating surface 1a of which is clamped between the arm support 11 and the cover 4. The cover 4 can be detachably connected to the corresponding arm support 11, for example, by snap-fit, or non-detachably connected. In an exemplary embodiment, the four covers 4 can be configured as four separate structures or as a single, integral cover.

[0062] The radiating surface 1a of each dipole arm 1 can be configured to be substantially all-encompassing or non-porous; alternatively, the radiating surface 1a can also have one or more openings to reduce material cost and weight, for example. Figure 2 In the embodiment shown, the radiating surface 1a has a central opening and is configured to be approximately annular.

[0063] like Figure 2 As shown, the dipole arm 1 has two rearwardly extending tabs 1c that are bent substantially perpendicular to the radiating surface 1a, and these tabs 1c have a rectangular profile. The tabs 1c can extend the operating bandwidth of the radiator assembly. The tabs 1c can also have other profile shapes, such as a generally triangular profile. In other embodiments, the number of tabs 1c can be one, three, or more. The bending angle of the tabs 1c relative to the radiating surface 1a can, for example, be between 60° and 120°, preferably between 70° and 110°, and particularly between 80° and 100°.

[0064] A feed line structure 7 is received in the central recess 12. The feed line structure 7 may include two generally U-shaped feed lines 2 made of metal plates, such as stamped plates. Each feed line 2 includes two legs 2a and 2b and a bottom edge 2c connecting the two legs 2a and 2b. Each U-shaped feed line 2 may form a hook-shaped balun adapted to the radio frequency signals passing between the two dipole arms 1 of a corresponding dipole of the radiator assembly.

[0065] The feeder cable structure 7 may include a first feeder cable support 5, which holds the bottom edges 2c of the two feeder cables 2 and such that the bottom edges 2c of the two feeder cables 2 are spaced apart from each other. Figure 3As shown, the first feeder cable support 5 may include a body 5a having a first side (front side) and a second side (rear side) opposite to the first side. Two pairs of latching elements 5b are provided on the first side, with a through hole 5d next to each pair of latching elements 5b. One of the two feeder cables 2 passes through these two through holes 5d with its two legs 2a, 2b and is latched to the two pairs of latching elements 5b with its bottom edge 2c. Two pairs of latching elements 5c are provided on the second side, with the other feeder cable 2 being latched to the two pairs of latching elements 5c with its bottom edge 2c. The latching elements 5b and 5c are arranged intersectingly, and particularly substantially perpendicular to each other.

[0066] like Figure 3 As shown, the first feeder support 5 may include two pairs of third snap-fit ​​elements 5e extending rearward from its body 5a. Each pair of third snap-fit ​​elements is configured to form a snap-fit ​​connection with a leg 1b of a corresponding dipole arm 1. This configuration can easily achieve a predetermined and stable relative position between the legs 2a, 2b of the feeder 2 and the leg 1b of the corresponding dipole arm 1.

[0067] The feeder structure 7 may include a second feeder support 6, which may include a body 6a and four through holes 6b formed in the body 6a. These through holes 6b are configured to allow one leg 2a, 2b of one of the feeder wires 2 to pass through, thereby effectively maintaining a predetermined and stable relative position between the two feeder wires 2 and their legs 2a, 2b. The second feeder support 6 may include two pairs of snap-fit ​​elements 6c extending from its body 6a. Each pair of snap-fit ​​elements 6c is configured to form a snap-fit ​​connection with a leg 1b of a corresponding dipole arm 1, thereby easily achieving a predetermined and stable relative position between the legs 2a, 2b of the feeder wire 2 and the leg 1b of the corresponding dipole arm 1.

[0068] exist Figure 2 and Figure 3 In the illustrated embodiment, the feeder structure 7 includes two feeder supports 5 and 6. It is also possible to have only one single feeder support, or three or more feeder supports. In the case of a single feeder support, it is particularly advantageous that the same feeder support may have retaining elements for holding the respective legs 2a, 2b of the two feeders 2 and retaining elements for holding the leg 1b of the respective dipole arm 1. The feeder supports may be made of a non-conductive material, such as plastic.

[0069] exist Figure 2 and Figure 3In the illustrated embodiment, the arm support 10 and the two feeder supports 5, 6 are each configured as separate components. Alternatively, the arm support 10 and the two feeder supports 5, 6 can be configured as an integral component, for example, integrally manufactured by injection molding. It is also possible that the arm support 10 and one of the feeder supports (e.g., the second feeder support 6) are configured as an integral component, while the other feeder support (e.g., the first feeder support 5) is configured as a separate component.

[0070] Figure 4a Display by Figures 1-3 Side view of the radiator assembly. Figure 4b Show along Figure 4a A partial perspective view of the radiator assembly cut through section line AA, and... Figure 4c This shows a partially enlarged bottom view of the radiator assembly.

[0071] exist Figure 4b The second feeder support 6 is visible in the central recess 12 of the arm support 10. One leg 1b of each of the four dipole arms 1 rests against the inner wall of the central recess 12. The two legs 2a and 2b of each feeder 2 are respectively positioned at a distance from one of the two legs 1b of the two dipole arms 1 of a dipole. Figure 4c As can be seen, a pair of snap-fit ​​elements 6c of the second feeder support 6 and a pair of corresponding snap-fit ​​elements of the leg 1b are configured as recesses, thereby establishing a snap-fit ​​connection between the second feeder support 6 and the leg 1b, so that the feeder 2 and the corresponding dipole arm 1 are in a predetermined stable relative position.

[0072] Figure 5 This diagram shows a schematic front view of a base station antenna 30 according to one embodiment of the present invention. The base station antenna 30 is configured as a dual-band base station antenna, comprising a substrate or reflector 34, a low-frequency radiator array 31 mounted on the substrate, a pair of high-frequency radiator arrays 32, and a parasitic element array 33. The low-frequency radiator array 31 may include multiple radiator components according to the present invention, and the low-frequency radiator array 31 may be arranged between the two high-frequency radiator arrays 32. Each high-frequency radiator array 32 may include multiple high-frequency radiator components known in the prior art. Each parasitic element array 33 may include multiple parasitic elements known in the prior art. Here, low frequency band specifically refers to the frequency range of 694–960 MHz, and high frequency band specifically refers to the frequency range of 1695–2690 MHz; however, the present invention is not limited thereto. When referring to two different frequency bands, one may be referred to as the low-frequency band and the other as the high-frequency band.

[0073] In other embodiments, the base station antenna 30 may be single-band, for example, comprising only a low-frequency band radiator array 31; or it may be multi-band. Figure 5 The number and arrangement of low-frequency band radiator components, the number and arrangement of high-frequency band radiator components, and the number and arrangement of parasitic elements are all exemplary.

[0074] Figure 6 A perspective view of a radiator assembly according to another embodiment of the invention is shown. Here, the dipole arm 1, the feed line 2, and the feed line supports 5 and 6 can be connected to the radiator assembly according to another embodiment of the invention. Figure 1 The implementation method is the same as or similar to that described above. Here, it is similar to that described above. Figure 1 The main difference in the implementation methods lies in the construction of the arm support 10. (The last sentence appears to be incomplete and possibly contains errors. It's unclear what the intended meaning is.) Figure 6 In one embodiment, the arm support 10 includes a lattice structure for supporting the radiating surfaces 1a of each dipole arm 1. This lattice structure includes an outer ring 20, an inner ring 22, and generally radially extending ribs 21 connecting the inner ring 22 and the outer ring 20. The radiating surfaces 1a of each dipole arm 1 are supported and fixed to the outer ring 20 and the inner ring 22. Figure 1 Compared to the implementation method, according to Figure 6 The arm support 10 has a reduced weight. Additionally, the impact of the arm support 10 on adjacent high-frequency band radiator assemblies can be reduced, especially when the high-frequency band radiator assembly is mounted below the radiator assembly according to the invention.

[0075] Figure 7 A perspective view of a radiator assembly according to another embodiment of the invention is shown, and Figure 8 Display by Figure 7 A top view of the arm support 10 of the radiator assembly. Here, the dipole arm 1, the feed line 2, and the feed line supports 5 and 6 can be connected to... Figure 1 The implementation method is the same as or similar to that described above. Here, it is similar to that described above. Figure 1 The main difference in the implementation methods lies in the construction of the arm support 10. According to... Figure 7 The arm support 10 includes a plurality of openings 23. (This is related to the button...) Figure 1 Compared to the implementation method, according to Figure 7 The arm support 10 has a reduced weight. Additionally, the impact of the arm support 10 on adjacent high-frequency band radiator assemblies can be reduced, especially when the high-frequency band radiator assembly is mounted below the radiator assembly according to the invention.

[0076] according to Figures 6 to 8 Radiator components, especially low-frequency band radiators, can be used in applications such as... Figure 5 The base station antenna shown.

[0077] It is also conceivable that the radiating surface 1a of each dipole arm may differ from that shown in the above embodiments. For example, each radiating surface 1a may be formed as first and second conductive segments spaced apart from each other, the first and second conductive segments together forming a generally elliptical or generally rectangular shape. The first and second conductive segments of each dipole arm may be electrically connected to each other, such that each dipole arm has a closed loop structure. The first and second conductive segments may each include a plurality of widened sections and narrowed, tortuous conductive trace sections connecting adjacent widened sections. The narrowed, tortuous conductive trace sections may generate high impedance for currents, for example, that occur at twice the highest frequency in the operating frequency range of the low-frequency band radiator assembly. The narrowed, tortuous conductive trace sections may make the low-frequency band radiator assembly according to the embodiments of the present invention substantially transparent to radio frequency energy in the high-frequency band. Therefore, the low-frequency band radiator assembly may have little or no effect on the high-frequency band radiator assembly. Figure 9 The radiating surfaces 1a of four dipole arms 1 are described, each radiating surface comprising multiple broadened segments 40, which are coupled to each other through narrowed, tortuous conductive trace segments 41. Figure 9 Other components of the radiator assembly are omitted, and the legs 1b of each dipole arm are not shown.

[0078] Finally, it should be noted that the above embodiments are merely for understanding the present invention and do not constitute a limitation on the scope of protection of the present invention. Those skilled in the art can make modifications based on the above embodiments, and these modifications do not depart from the scope of protection of the present invention.

Claims

1. A radiator assembly for a base station antenna, the radiator assembly comprising: Two dipoles are arranged in a cross pattern, each dipole consisting of two dipole arms (1). Two feeder lines (2), each feeder line being paired with one of the dipoles; An arm support (10) configured to support each dipole arm (1); and At least one feeder support (5, 6) is configured to support at least one of the two feeders (2); The feature is that each dipole arm (1) is integrally made of a metal plate, and each dipole arm (1) includes a radiating surface (1a) and a leg (1b) extending from the radiating surface at an angle to the radiating surface, the leg (1b) being electrically grounded; The arm support (10) includes a base foot (13), a central recess (12), and four arm supports (11) surrounding the central recess. The base foot (13) is configured to fix the arm support (10) to the substrate or reflector of the base station antenna. The central recess (12) is configured to accommodate the at least one feeder support (5, 6) and the leg of each dipole arm. The arm supports (11) are configured to support each dipole arm (1).

2. The radiator assembly for a base station antenna according to claim 1, characterized in that, The radiating surface (1a) of the dipole arm (1) is respectively mounted on one of the corresponding arm supports (11).

3. The radiator assembly for a base station antenna according to claim 2, characterized in that, Each arm support (11) is equipped with a cover (4), and the radiation surface (1a) of each dipole arm (1) is sandwiched between the arm support (11) and the matching cover (4).

4. The radiator assembly for a base station antenna according to claim 3, characterized in that, Each arm support (11) is snapped together with one of the matching caps (4).

5. The radiator assembly for a base station antenna according to claim 1, characterized in that, The arm support (10) includes a support structure for supporting the radiating surface (1a) of each dipole arm (1), the support structure including an outer ring (20), an inner ring (22) and a rib (21) connecting the outer ring and the inner ring.

6. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The arm support (11) has multiple openings (23).

7. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The two feeder wires (2) are integrally made of metal plates, and the two feeder wires (2) each include two legs (2a, 2b) and a bottom edge (2c) connecting the two legs (2a, 2b).

8. The radiator assembly for a base station antenna according to claim 7, characterized in that, The at least one feeder support includes a first feeder support (5) that holds the bottom edge (2c) of the two feeder wires (2) and such that the bottom edges (2c) of the two feeder wires (2) are spaced apart from each other.

9. The radiator assembly for a base station antenna according to claim 8, characterized in that, The first feeder cable support (5) includes: Body (5a), the body having a first side surface and a second side surface opposite to the first side surface; A first snap-fit ​​element (5b) is constructed on the first side and configured to form a snap-fit ​​connection with the bottom edge (2c) of one of the feed wires (2); and The second snap-fit ​​element (5c) is constructed on the second side and configured to form a snap-fit ​​connection with the bottom edge (2c) of another feeder wire (2).

10. The radiator assembly for a base station antenna according to claim 9, characterized in that, The first feeder support (5) also includes two through holes (5d), which are configured to accommodate two legs (2a, 2b) of one of the feeders (2).

11. The radiator assembly for a base station antenna according to claim 9 or 10, characterized in that, The first feeder support (5) also includes at least one third snap-fit ​​element (5e) extending from its body (5a), the third snap-fit ​​element (5e) being configured to form a snap-fit ​​connection with the leg (1b) of the corresponding dipole arm (1).

12. The radiator assembly for a base station antenna according to claim 7, characterized in that, The at least one feeder support includes a second feeder support (6) configured to guide the respective legs of the two feeders (2).

13. The radiator assembly for a base station antenna according to claim 12, characterized in that, The second feeder support (6) includes a body (6a) and four through holes (6b) formed in the body, the four through holes being configured to accommodate one of the legs (2a, 2b) of one of the feeder wires (2).

14. The radiator assembly for a base station antenna according to claim 12 or 13, characterized in that, The second feeder support (6) also includes at least one snap-fit ​​element (6c) extending from its body (6a), the snap-fit ​​element (6c) of the second feeder support being configured to form a snap-fit ​​connection with the leg (1b) of the corresponding dipole arm (1).

15. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The radiating surface (1a) of the dipole arm (1) has a central opening.

16. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, Each dipole arm (1) has at least one slab (1c) bent out relative to the radiating surface (1a).

17. The radiator assembly for a base station antenna according to claim 16, characterized in that, The vertical strip (1c) is bent at an angle of 80° to 100° relative to the radiating surface (1a).

18. The radiator assembly for a base station antenna according to claim 16, characterized in that, The vertical strip (1c) has a rectangular outline.

19. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The leg (1b) of each dipole arm (1) is bent at an angle of 80° to 100° relative to the radiation surface (1a) of the corresponding dipole arm (1).

20. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The feed line (2) is electrically connected to the feed circuit of the feed board (3) which is configured as a printed circuit board, or to the stable phase cable for feeding.

21. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The leg (1b) of the dipole arm (1) is electrically connected to the ground plane of the feed board (3) which is configured as a printed circuit board, or is electrically connected to the reflector for electrical grounding, or is capacitively coupled to the reflector for electrical grounding.

22. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The arm support (10) and at least one feeder support (5, 6) are either separate components or integrally integrated components.

23. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, The radiator assembly is a low-frequency radiator.

24. The radiator assembly for a base station antenna according to any one of claims 1 to 5, characterized in that, Each feeder line includes a hook-shaped balun.

25. A base station antenna, the base station antenna comprising a radiator array, characterized in that, The radiator array includes a plurality of radiator components for a base station antenna according to any one of claims 1 to 24.

26. The base station antenna according to claim 25, characterized in that, The radiator array is a low-frequency band radiator array (31), and the base station antenna also includes a high-frequency band radiator array (32).

27. A radiator assembly for a base station antenna, the radiator assembly comprising: Two dipoles arranged in a cross pattern, each dipole consisting of two dipole arms; Two feeder lines, each of which is paired with one of the dipoles; and An arm support, the arm support comprising a central recess and four arm supports surrounding the central recess for supporting each dipole arm; Each dipole arm includes a radiating surface and a leg extending from the radiating surface at an angle to the radiating surface, the leg being electrically grounded, and the radiating surface of each dipole arm is fastened to a corresponding arm support of one of the arm supports of the arm support by screws or adhesive, and the leg of each dipole arm rests against the inner wall of the central recess of the arm support.

28. The radiator assembly for a base station antenna according to claim 27, characterized in that, Each dipole arm is integrally formed from a metal plate, and the legs extend vertically from the radiating surface.

29. The radiator assembly for a base station antenna according to claim 27 or 28, characterized in that, The radiator assembly also includes at least one feeder support configured to support at least one of the two feeders.

30. The radiator assembly for a base station antenna according to claim 29, characterized in that, The arm support also includes a base foot configured to secure the arm support to the substrate or reflector of the base station antenna, and the central recess is configured to accommodate the at least one feeder support.

31. The radiator assembly for a base station antenna according to claim 27 or 28, characterized in that, The radiating surfaces of the dipole arms are respectively mounted on one of the corresponding arm supports.

32. The radiator assembly for a base station antenna according to claim 31, characterized in that, Each arm support is equipped with a cover, and the radiating surface of each dipole arm is sandwiched between the arm support and the matching cover.

33. The radiator assembly for a base station antenna according to claim 32, characterized in that, Each arm support is connected to one of the matching cover clips.

34. The radiator assembly for a base station antenna according to claim 27 or 28, characterized in that, The arm support includes a support structure for supporting the radiating surfaces of each dipole arm, the support structure including an outer ring, an inner ring, and a rib connecting the outer ring and the inner ring.

35. The radiator assembly for a base station antenna according to claim 27 or 28, characterized in that, The arm support portion has multiple openings.

36. A radiator assembly for a base station antenna, the radiator assembly comprising: Two dipoles arranged in a cross pattern, each dipole consisting of two dipole arms; An arm support, the arm support being configured to support each dipole arm; Two feeder lines, each of which is paired with one of the dipoles; and At least one feeder support, the feeder support being configured to support at least one of the two feeders, each feeder including two legs and a bottom edge connecting the two legs; Each dipole arm includes a radiating surface and a leg extending from the radiating surface at an angle to the radiating surface, the leg being electrically grounded; and The arm support includes a central recess configured to accommodate the at least one feeder support and the legs of each dipole arm; and Wherein, the at least one feeder cable support includes: - A body having a first side and a second side opposite to the first side; - A first snap-fit ​​element, formed on the first side and configured to form a snap-fit ​​connection with the bottom edge of one of the feed wires; and - A second snap-fit ​​element, which is constructed on the second side and configured to form a snap-fit ​​connection with the bottom edge of another feeder wire.

37. The radiator assembly for a base station antenna according to claim 36, characterized in that, Each dipole arm is made of a single metal plate.

38. The radiator assembly for a base station antenna according to claim 36 or 37, characterized in that, The arm support also includes a base foot and four arm support portions surrounding the central recess. The base foot is configured to fix the arm support to the substrate or reflector of the base station antenna, and the arm support portions are configured to support each dipole arm.

39. The radiator assembly for a base station antenna according to claim 36 or 37, characterized in that, The two feeder lines are each made of a single piece of metal plate.

40. The radiator assembly for a base station antenna according to claim 36 or 37, characterized in that, The at least one feeder support includes a first feeder support, the first feeder support further including two through holes configured to receive two legs of one of the feeder wires.

41. The radiator assembly for a base station antenna according to claim 40, characterized in that, The first feeder support also includes at least one third snap-fit ​​element extending from its body, the third snap-fit ​​element being configured to form a snap-fit ​​connection with a leg of the corresponding dipole arm.

42. The radiator assembly for a base station antenna according to claim 40, characterized in that, The at least one feeder support includes a second feeder support configured to guide the respective legs of the two feeders.

43. The radiator assembly for a base station antenna according to claim 42, characterized in that, The second feeder support includes a body and four through holes formed therein, the four through holes being configured to accommodate one leg of one of the feeders.

44. The radiator assembly for a base station antenna according to claim 42 or 43, characterized in that, The second feeder support also includes at least one snap-fit ​​element extending from its body, the snap-fit ​​element of the second feeder support being configured to form a snap-fit ​​connection with a leg of the corresponding dipole arm.

Images