Radome assembly and base station antenna

Abstract

The present disclosure refers to a radome assembly, wherein the radome assembly includes a radome and parasitic components for a radiating component, characterized in that the radome itself has a hollow structure, wherein at least one receiving compartment is formed through the hollow structure, wherein the parasitic components are arranged in the receiving compartment. In addition, the present disclosure also refers to a base station antenna including the radome assembly. (Fig. 2a)

Description

Attorney Docket No. 9833.7556.WORADOME ASSEMBLY AND BASE STATION ANTENNARelated Application

[0001] The present application claims priority from and the benefit of Chinese Patent Application No. 202411987174.1, filed December 31, 2024, the disclosure of which is hereby incorporated herein by reference in full.Technical Field

[0002] The present disclosure relates to the field of base station antennas. More specifically, the present disclosure relates to a radome assembly and a base station antenna.Background

[0003] A mobile communications base station is a radio transceiver station that transmits information to a mobile terminal through a mobile communications switching center in a certain radio coverage region, and is the most critical infrastructure in a communications network. The mobile communications base station sends and receives messages through an antenna. The base station antenna includes a reflector and an array of radiating elements and produces a radiation pattern, also known as an “antenna beam,” that provides cellular coverage to a predetermined region. The base station antenna is typically mounted on an antenna tower or another structure at a higher position, and radiating elements extend forwardly from the reflector in the direction in which the antenna beam is formed.

[0004] Normally, some parasitic circuit boards are arranged inside theradome of such a base station antenna to adjust the radiation pattern. In the prior art, when parasitic circuit boards are arranged inside the radome, a certain gap needs to be maintained between the radome wall and the parasitic circuit boards. The reason for setting this gap is that, in the prior art, parasitic circuit boards are generally rigidly fixed to internal brackets. Without the gap, on the one hand, it may result in insufficient tolerance being reserved, and on the other hand, the radome could deform under stress and potentially damage the brackets. This traditional arrangement of parasitic circuit boards leads to larger dimensions of the radome, such as its width and depth will be larger, and also results in comers with smaller radii. Larger radome dimensions and smaller corner radii are disadvantageous for reducing wind load. In addition, customers also typically disfavor larger radome dimensions.Summary

[0005] Therefore, the objective of the present disclosure is to provide a radome assembly and a base station antenna that includes the radome assembly. Embodiments of a radome assembly according to the present disclosure can provide the possibility of reducing the size of the radome and increasing its corner radius, thereby reducing the wind loads on the radome. Furthermore, by reducing the radome size through the design based on the disclosed radome assembly, customer satisfaction with the product can be improved.

[0006] To this end, according to one aspect of the present disclosure, a radome assembly is proposed, wherein the radome assembly includes a radome and parasitic components for a radiating component, characterized in that the radome itself has a hollow structure, wherein at least one receiving compartment is formed through the hollow structure, wherein the parasitic components are arranged in the receiving compartment.

[0007] In the present disclosure, the parasitic components were originally intended to be arranged inside the radome in a relative positional relationship to the radiating components, with a certain gap between the functional parasitic components and the original radome wall, wherein by arranging the parasitic components, which were originally intended to be placed inside the radome, in the receiving compartment of the radome itself while maintaining their relative positional relationship with the radiating components, it is possible to reduce the size of the radome and / or increase the corner radius of the radome. In other words, by creatively arranging the parasitic components, which were originally intended to be placed inside the radome with a certain gap from the original radome wall and in a relative positional relationship to the radiating components, in the receiving compartment of the radome itself while maintaining their relative positional relationship with the radiating components, the gap originally present can be eliminated through the receiving compartment in the radome, thus allows the entire structure of the radome to be contracted inward, thereby enabling the radome to be reduced in size. Alternatively or additionally, this also provides the possibility of increasing the corner radius of the radome in terms of its structure. Since the radome has a hollow structure, it can have a profile structure, which increases the structural rigidity of the radome and makes it less prone to deformation. In the present disclosure, this advantage is fully utilized. By arranging the parasitic components in the receiving compartment, it is possible to achieve both a smaller radome size and a larger radome corner radius while also ensuring that the parasitic components do not deform.

[0008] In some embodiments, the parasitic components are fixedly arranged in the receiving compartment and held in place by fixing devices.

[0009] In some embodiments, the parasitic components are arranged with fixing devices such that the parasitic components are positioned adjacent to the outerwall of the receiving compartment of the radome, or the parasitic components are pressed against the outer wall of the receiving compartment of the radome.

[0010] In some embodiments, the fixing devices are configured to be elastic, and the parasitic components can be fixedly arranged in the receiving compartment by means of the friction generated by the preload force of the elastic fixing devices.

[0011] In some embodiments, the fixing device includes a first support portion and a second support portion. The first support portion is capable of passing through the parasitic component and engaging with the second support portion, thereby fixing the parasitic component in place within the fixing device.

[0012] In some embodiments, the first support portion has a head section and a first engagement section, while the second support portion has a second engagement section and an elastic section. The first engagement section of the first support portion can engage with the second engagement section of the second support portion, forming an engagement structure that clamps the parasitic component between the head section of the first support portion and the second engagement section of the second support portion. The elastic section is located on the second engagement section and is configured to elastically support against one wall of the receiving compartment, while the head section is supported against the other wall of the receiving compartment under the elastic deformation of the elastic section.

[0013] In some embodiments, the fixing device, along with the parasitic component fixed in place by the fixing device, is arranged in the receiving compartment such that the elastic section elastically supports against the inner wall of the receiving compartment, while the head section is supported against the outer wall of the receiving compartment under the elastic deformation of the elastic section.

[0014] In some embodiments, the head section is configured to be flat, allowing the parasitic component to be positioned adjacent to the outer wall of the receiving compartment of the radome.

[0015] In some embodiments, the elastic section is arranged to surround the second engagement section.

[0016] In some embodiments, the elastic section includes multiple elastic plates that are spaced apart from each other.

[0017] In some embodiments, the elastic plates have a first arcuate section at their free end regions. The first arcuate section is curved in such a way that when the fixing device is placed in the receiving compartment, the smooth surface of the first arcuate section makes contact with the wall of the receiving compartment, wherein the elastic plates have a second arcuate section at the other end region adjacent to the second engagement section, with the orientation of the second arcuate section being different from that of the first arcuate section.

[0018] In some embodiments, the parasitic components are arranged along the circumferential direction of the radome at least at one side, spaced apart from each other, through the receiving compartment arrangement structure that is spaced apart on the at least one side of the radome.

[0019] In some embodiments, the parasitic components are arranged in the receiving compartment, spaced apart from each other along the longitudinal direction of the radome.

[0020] In some embodiments, the parasitic components are arranged in the receiving compartment, spaced apart from each other by spacer elements.

[0021] In some embodiments, the spacer elements are configured as spacer strips.

[0022] Tn some embodiments, the radome has a first receiving compartmentin the front portion, with the first parasitic components arranged spaced apart from each other in the first receiving compartment, and / or the radome has a second receiving compartment in the side portion, with the second parasitic components arranged spaced apart from each other in the second receiving compartment.

[0023] In some embodiments, when the first parasitic components are arranged in the first receiving compartment and the second parasitic components are arranged in the second receiving compartment, the first distance between the centers of adjacent first parasitic components and the second distance between the centers of adjacent second parasitic components are the same when observed along the longitudinal direction of the radome.

[0024] In some embodiments, the first parasitic components are configured to adjust the radiation pattern to improve gain, and / or the second parasitic components are configured to adjust the horizontal lobe width of the radiation pattern.

[0025] In some embodiments, the front portion of the radome is provided with multiple first receiving compartments, which are spaced apart from each other along the circumferential direction of the radome.

[0026] In some embodiments, the radome has a third receiving compartment in the rear portion, with the third parasitic components continuously arranged in the third receiving compartment.

[0027] In some embodiments, the third parasitic components are configured for passive intermodulation.

[0028] In some embodiments, the rear portion of the radome is provided with multiple third receiving compartments, which are spaced apart from each other along the circumferential direction of the radome.

[0029] In some embodiments, in the third receiving compartment of theradome, at least one of the following additional components is arranged in the vacant area not occupied by the third parasitic components:

[0030] metal sheets, plastic sheets, or fiber-reinforced plastic sheets, used to reinforce or strengthen the structure of the receiving compartment and / or to adjust the reflective characteristics;

[0031] surface elements used to adjust the dielectric constant.

[0032] In some embodiments, the front portion of the radome is at least partially devoid of a hollow structure and thus has only a first single-layer structure, thereby reducing the impact on the RF pattern.

[0033] In some embodiments, the side portion of the radome in the area near the edge of the reflector does not have a hollow structure and thus has a second single-layer structure flush with the outer wall of the hollow structure, thereby providing installation space for the width of the reflector.

[0034] In some embodiments, the width of the receiving compartment is equal to the width of the parasitic component to be accommodated.

[0035] According to another aspect of the present disclosure, a base station antenna is provided, and the base station antenna includes a radome assembly as disclosed in the present disclosure.

[0036] The above-mentioned technical features, the technical features to be mentioned below, and the technical features shown separately in the drawings can be arbitrarily combined with each other as long as the combined technical features are not mutually contradictory. All feasible combinations of features are expressly disclosed as part of the technical content of this document. Any one of the sub-features contained within the same statement can be independently applied without necessarily being applied together with other subfeatures.Brief Description of Attached Drawings

[0037] The present disclosure will be explained further by means of exemplary examples with reference to the schematic drawings attached. In which:

[0038] FIG. 1 is a schematic cross-sectional view of a base station antenna in the prior art.

[0039] FIG. 2a is a schematic cross-sectional view of a radome assembly according to one embodiment of the present disclosure.

[0040] FIG. 2b is a schematic cross-sectional view of the radome in the radome assembly shown in FIG. 2a.

[0041] FIG. 3 is a partial schematic diagram of the front portion of the radome assembly shown in FIG. 2a.

[0042] FIG. 4 is a partial schematic diagram of the rear portion of the radome assembly shown in FIG. 2a.

[0043] FIG. 5 is a partial schematic diagram of the side portion of the radome assembly shown in FIG. 2a.

[0044] FIG. 6 is a partial schematic diagram of the front and side portion of the radome assembly shown in FIG. 2a.

[0045] FIG. 7 is a schematic comparison diagram between the radome assembly of the present disclosure and the radome of the prior art.

[0046] FIG. 8 is a schematic perspective view of a radome assembly according to one embodiment of the present disclosure.

[0047] FIG. 9 is a schematic side view of the radome assembly shown in FIG. 8.

[0048] FIG. 10 is a schematic top view of the radome assembly shown in FIG. 8.

[0049] FIG. 11 is another schematic side view of the radome assembly shownin FIG. 8.

[0050] FIG. 12a is a schematic diagram of the structure of the second parasitic component with spacer elements in a radome assembly according to one embodiment of the present disclosure.

[0051] FIG. 12b is a schematic diagram of the structure of the second parasitic component with spacer elements and fixing devices in a radome assembly according to one embodiment of the present disclosure.

[0052] FIG. 13 and 14 are schematic diagrams of the structure of the first parasitic component with spacer elements and fixing devices in a radome assembly according to one embodiment of the present disclosure, in which FIG.13 is shown from the front and FIG. 14 is shown from the back.

[0053] FIG. 15 is a schematic cross-sectional view of the fixing device of a radome assembly according to one embodiment of the present disclosure.

[0054] FIGS. 16 to 18 are schematic diagrams of the structure of the fixing device shown from different perspectives in FIG. 15.

[0055] FIG. 19 is a schematic diagram of the arrangement of the fixing device along with the parasitic components in the receiving compartment of a radome assembly according to one embodiment of the present disclosure.

[0056] FIG. 20 is a schematic diagram of the structure of the radome in a radome assembly according to another embodiment of the present disclosure.Detailed Description of Specific Embodiments

[0057] First, the solution used in the prior art is introduced. As shown in FIG.1, in the prior art, when corresponding parasitic components 3, such as parasitic circuit boards, are arranged inside the traditional radome 1’, a certain gap, such as 6mm to 7mm, needs to be left between the radome wall of the traditional radome 1 ’ and the parasitic circuit board. This results in a larger size for thetraditional radome 1’ . In addition, this also leads to a smaller corner radius of the traditional radome 1 ’ .

[0058] In response to the solution in the above prior art, the present disclosure provides an improved radome assembly 100. The following description compares the radome assembly 100 of the present disclosure, along with the base station antenna equipped with this radome assembly 100 of the present disclosure, to the base station antenna of the prior art, with reference to FIGS. 2a to 7.

[0059] In the present disclosure, as shown in FIGS. 2a and 2b, the radome assembly 100 includes a radome 1, and the radome 1 has a hollow structure. This hollow structure forms at least one receiving compartment 2. The receiving compartment 2 is, for example, configured as a through groove. In addition, the radome assembly 100 further includes parasitic components 3 arranged in the receiving compartment 2. The parasitic components 3 were originally intended to be arranged inside the original radome 1’ (as shown in FIG. 1) in a relative positional relationship to the radiating components 4, with a certain gap between the parasitic components 3 and the original radome wall. As shown in FIG. 7, when comparing the base station antenna with the radome assembly 100 of the present disclosure to the base station antenna of the prior art, it is clearly evident that by arranging the parasitic components 3 inside the radome 1 , which were originally intended to be positioned with a gap relative to the radome wall, inside the receiving compartment 2 of the radome 1 while maintaining their relative positional relationship with the radiating components 4, the gap originally present between the parasitic components 3 and the radome wall is eliminated, which allows the entire structure of the radome to be contracted inward, thus enabling a reduction in the size of the radome. In addition, as shown in FIG. 6, by arranging the parasitic components 3 in the receivingcompartment 2 of the radome as disclosed, while maintaining the relative positional relationship between the parasitic components 3 and the radiating components 4, it is also possible to increase the corner radius of the radome. By reducing the size of the radome and increasing the corner radius of the radome, better wind load characteristics can be achieved. In addition, customers also expect the radome size to be smaller.

[0060] In the present disclosure, the parasitic components 3 are configured as parasitic components, such as parasitic circuit boards. Of course, in addition to parasitic components, other types of parasitic components can also be placed into the receiving compartment 2, and these other types of parasitic components 3 will be described later.

[0061] As shown in FIGS. 2a to 6, the parasitic components 3, especially the parasitic components, are fixed and arranged in the receiving compartment 2 and held in place by fixing devices 5. In one example, the parasitic component 3 is arranged by the fixing device 5 such that the parasitic component 3 is positioned adjacent to the outer wall of the receiving compartment 2 of the radome 1. In another example, the parasitic component 3 is arranged by the fixing device 5 such that the parasitic component 3 is pressed against the outer wall of the receiving compartment 2 of the radome 1. This allows the original gap size to be converted into a usable reduction in size as much as possible, while maintaining the relative positional relationship between the parasitic component 3 and the radiating component 4. As can be seen in FIG. 7, while maintaining the relative positional relationship between the parasitic component 3 and the radiating component 4, the closer the parasitic component 3 is to the outer wall of the receiving compartment 2 of the radome 1 in the present disclosure, the larger the distance between the outer wall of the receiving compartment 2 and the original radome wall. This means that the size of the radome can be further reduced.

[0062] In addition, as shown in FIGS. 3 to 6, the width of the receiving compartment 2 is generally equal to the width of the parasitic component 3 to be accommodated. This allows for a good fit of the parasitic component 3 within the receiving compartment 2, thereby preventing the parasitic component 3 from shifting or deflecting in the circumferential direction.

[0063] To fix the parasitic component 3 within the receiving compartment 2, the fixing device 5 is designed to be elastic. The elastic fixing device 5 can secure the parasitic component 3 in place within the receiving compartment 2 by utilizing the frictional force generated by the pre-tensioning force. With the elastic fixing device 5, external forces acting on the radome 1 do not directly affect the parasitic component 3. Instead, these forces are absorbed by the elastic fixing device 5, ensuring that the parasitic component 3 remains unaffected by external forces. In this case, the fixing effect brought by the elasticity of the fixing device 5 can be exemplified by the supporting role of the fixing device 5. The fixing device 5 itself can generate an elastic force, such that under the preloading force induced by the elastic force, the fixing device 5 is able to press its top and bottom surfaces against the outer and inner walls of the receiving compartment 2, respectively, thereby generating friction between the corresponding outer and inner walls of the receiving compartment 2. This action fixes the fixing device 5 along with the parasitic component 3 fixed in the fixing device 5 within the receiving compartment 2. Of course, in another embodiment, the fixing effect brought by the elasticity of the fixing device 5 can also be demonstrated by the clamping action of the fixing device 5. For example, a fixing device 5 that performs a clamping action can be constructed as latch strips provided on both side walls of the receiving compartment 2. These latch strips can elastically deform by themselves and, through their elastic deformation, can clamp the parasitic component 3 between the latch strips and the outer or innerwalls of the receiving compartment 2. In addition to the elastic fixing device 5, in another embodiment, the fixing device 5 can also be a bonding device, such as adhesive sheets or adhesive strips, that provides an adhesive function. The specific structure of the elastic fixing device 5 will be described in detail below with reference to FIGS. 15 to 19.

[0064] Next, the specific arrangement structure of the parasitic component 3 in the receiving compartment 2 will be described with reference to FIGS. 8 to 14.

[0065] As shown in FIGS. 8 to 10, in the front part of the radome 1 (the upper part of the radome 1 shown in FIG. 8) and the side part, the parasitic components 3 are arranged in the receiving compartment 2 along the longitudinal direction of the radome 1 , spaced apart from each other. In addition, in the front part of the radome 1 (the upper part of the radome 1 shown in FIG.8) and the rear part (the lower part of the radome 1 shown in FIG. 8), the parasitic components 3 are arranged along the circumferential direction of the radome 1 , spaced apart from each other, by means of an arrangement of receiving compartment 2 arranged spaced apart from one another at one side. It can also be seen in reference FIG. 2a that the receiving compartments 2 in the upper part (or the front part) and the lower part (or the rear part) are spaced apart along the circumferential direction of the radome 1 (which can also be considered along the horizontal direction of the radome 1 in the cross-sectional view of FIG. 2a), thus the parasitic components 3 arranged within these receiving compartments 2 are also spaced apart from each other along the circumferential direction of the radome 1. By arranging the parasitic components 3 in the corresponding sides of the radome 1 with a spaced-apart structure along the longitudinal and / or circumferential directions of the radome 1, an advantageous arrangement of the parasitic components 3 can be achieved. Thisarrangement is beneficial for improving the radiation pattern or passive intermodulation performance.

[0066] To arrange the corresponding parasitic components 3 at intervals, as shown in FIGS. 8 to 14, the corresponding parasitic components 3 are arranged in the receiving compartments 2 with spacing from each other by means of corresponding spacer element 6. In this case, the spacer element 6 is constructed as a spacer strip. As shown in FIG. 12a, the spacer strip can be a profile with a web. In another example, the spacer element 6 can also be constructed in other forms, such as in the form of a spacer plate or a frame-type spacer structure.

[0067] The following describes the arrangement of the parasitic components 3 and receiving compartments 2 at each side.

[0068] As clearly shown in FIGS. 2a, 2b, and 8 to 10, the radome 1 has a first receiving compartment 21 in the front portion, and the first parasitic components 31 are arranged at intervals within the first receiving compartment 21. In addition, multiple first receiving compartments 21, for example, two first receiving compartments 21, are arranged in the front portion of the radome 1. These first receiving compartments 21 are spaced apart along the circumferential direction of the radome 1 , and thus, the first parasitic components 31 arranged in the first receiving compartments 21 are also spaced apart from each other along the circumferential direction of the radome 1. The first parasitic component 31 is configured to adjust the radiation pattern in order to enhance the gain. By arranging the first parasitic components 31 in the front portion of the radome 1 , with each component spaced apart along both the longitudinal and circumferential directions of the radome 1 , a favorable arrangement structure of the first parasitic components 31 in the front part of the radome 1. This arrangement helps improve the radiation pattern, leading to better gainperformance.

[0069] Alternatively or additionally, the radome 1 has a second receiving compartment 22 in the side portion, in which the second parasitic components 32 are arranged spaced apart from each other in the receiving compartment 22. The second parasitic components 32 are configured to adjust the horizontal lobe width of the radiation pattern. By arranging the second parasitic components 32 along the longitudinal direction of the radome 1 in the side portion of radome 1 , with a spacing between them, a favorable arrangement structure of the second parasitic components 32 in the side portion of the radome 1 can be achieved. This arrangement helps improve the horizontal lobe width of the radiation pattern.

[0070] As shown in FIG. 8, when the first parasitic components 31 are arranged in the first receiving compartment 21 and the second parasitic components 32 are arranged in the second receiving compartment 22, the first distance between the centers of adjacent first parasitic components 31 and the second distance between the centers of adjacent second parasitic components 32 are the same when observed along the longitudinal direction of the radome 1. Thus, through the longitudinally spaced arrangement of the first parasitic components 31 and the second parasitic components 32, which are interrelated, the radiation pattern can be improved.

[0071] As shown in FIGS. 8, 10, 13, and 14, the first parasitic component 31 can be constructed in a square shape. The two adjacent first parasitic components 31 are respectively fixed in the first receiving compartment 21 via fixing devices 5 and are spaced apart from each other by spacer element 6, so that the two adjacent first parasitic components 31 are fixed in the first receiving compartment 21 with a gap between them. This enables the advantageous spaced arrangement and fixation of the first parasitic components 31.

[0072] In addition, as shown in FIGS. 2a, 5, 8, 9, 11, 12a, and 12b, thesecond parasitic component 32 is constructed in an elongated shape. Similarly, two adjacent second parasitic components 32 are respectively secured in the receiving compartment 2 via fixing devices 5 and are spaced apart from each other by spacer element 6. This enables the advantageous spacing arrangement and fixation of the second parasitic component 32.

[0073] In addition to the first receiving compartment 21 and the second receiving compartment 22, as well as the corresponding first parasitic component 31 and second parasitic component 32 arranged therein, as shown in FIGS. 2a, 4, and 8, the radome 1 also has a third receiving compartment 23 in the rear portion, with the third parasitic component 33 continuously arranged in the third receiving compartment 23. In the rear portion of the radome 1, there are multiple, for example, three third receiving compartments 23, and these third receiving compartments 23 are spaced apart from each other in the circumferential direction of the radome 1. The third parasitic component 33 is configured for performing passive intermodulation. The arrangement of the third parasitic component 33 in the rear part of the radome 1 can achieve favorable passive intermodulation.

[0074] Based on the aforementioned connection structure between the corresponding parasitic components 3 or the inherent construction of the parasitic components 3 themselves, the first parasitic component 31 and the second parasitic component 32, which are connected together, as well as the continuous third parasitic component 33, can be inserted or pulled into the corresponding receiving compartment 2.

[0075] Next, the specific structure of the fixing device 5 will be described with reference to FIGS. 15 to 19.

[0076] As can be clearly seen from FIGS. 15 to 19, the fixing device 5 comprises a first support portion 51 and a second support portion 52. The firstsupport portion 51 is able to pass through the parasitic component 3 and engage with the second support portion 52, thereby fixing the parasitic component 3 at the fixing device 5. The first support portion 51 has a head section 511 and a first engaging section 512, while the second support portion 52 has a second engaging section 521 and an elastic section 522. The first engaging section 512 of the first support portion 51 is able to engage with the second engaging section 521 of the second support portion 52, thereby forming an engaging structure that clamps the parasitic component 3 between the head section 511 of the first support portion 51 and the second engaging section 521 of the second support portion 52. Here, the engaging structure can, as shown in the figure, be a snap-fit structure. In another example, the engaging structure can also be a threaded connection structure. In one example, the first engaging section 512 of the first support portion 51 can be fitted into the second engaging section 521 of the second support portion 52, as shown in the figure. In another example, it can also be defined that the second engaging section 521 of the second support portion 52 fits into the first engaging section 512 of the first support portion 51.

[0077] The elastic section 522 is provided on the second engaging section 521 and is configured to elastically support against one wall of the receiving compartment 2, while the head section 511 is supported against the other wall of the receiving compartment 2 under the elastic deformation of the elastic section 522. For example, as shown in FIGS. 15 to 19, the fixing device 5, along with the parasitic component 3 fixed at the fixing device 5, is arranged in the receiving compartment 2 such that the elastic section 522 elastically supports against the inner wall of the receiving compartment 2, while the head section 511 is supported against the outer wall of the receiving compartment 2 under the elastic deformation of the elastic section 522. The head section 511 is constructed in a flat shape, allowing the parasitic component 3 to be positionedclose to the outer wall of the receiving compartment 2 of the radome 1.

[0078] In addition, regarding the arrangement of the elastic section 522, the elastic section 522 is disposed in a angular manner around the second engaging section 521. In addition, the elastic section 522 includes multiple elastic plates 523 that are spaced apart from each other. The elastic plate 523 have a first arcuate section 524 at their free end regions. The first arcuate section 524 is curved in such a way that when the fixing device 5 is placed in the receiving compartment 2, the smooth surface of the first arcuate section 524 makes contact with the wall of the receiving compartment 2. Thus, when the corresponding parasitic component 3 is inserted or pulled into the receiving compartment 2, the first arcuate section 524 can significantly reduce or completely prevent the parasitic component 3 from getting stuck in the receiving compartment 2 during the insertion or pulling motion. In addition, the elastic plate 523 have a second arcuate section 525 at the other end region adjacent to the second engaging section 521. The orientation of the second arcuate section 525 is different from that of the first arcuate section 524. By providing the second arcuate section 525 with a different orientation from that of the first arcuate section 524, the elastic deformation behavior of the elastic section 522 can be improved.

[0079] Finally, an alternative embodiment of the radome assembly 100 of the present disclosure will be described with reference to FIG. 20.

[0080] In the third receiving compartment 23 of the radome 1 , a metal sheet can be arranged as an additional component in the vacant area not occupied by the third parasitic component 33, to strengthen or reinforce the structure of the receiving compartment 2 and / or to adjust the reflection characteristics. In addition, the additional component can be selected from the following parts: A plastic sheet or a fiber-reinforced plastic sheet, used to reinforce or strengthen the structure of the receiving compartment 2 and / or to adjust the reflectivecharacteristics. Here, the fiber-reinforced plastic sheet can be fiberglass-reinforced plastic, also known as fiberglass.

[0081] As shown in FIG. 20, in order to reduce the impact on the RF diagram, the radome 1 in the front portion is at least partially free of a hollow structure, and thus only has a single-layer structure 7, i.e., a single-layer construction.

[0082] In addition, as shown in FIG. 20 in conjunction with FIGS. 2a, 2b, and 7, and particularly evident from FIG. 7, the radome 1 in the side portion is free of a hollow structure in the area near the edge of the reflector, and thus has a second single-layer structure 8 that is flush with the outer wall of the hollow structure, thereby leaving space for the installation of the reflector’s width.

[0083] It should be noted that the terminology used here is only for the purpose of describing specific aspects, and not for limiting the disclosure. The singular forms “a” and “the one” as used herein shall include plural forms, unless the context explicitly states otherwise. It can be understood that the terms “including” and “inclusive” and other similar terms, when used in the application documents, specify the existence of the stated operations, elements and / or components, and do not exclude the existence or addition of one or more other operations, elements, components and / or combinations thereof. The term “and / or” as used herein includes all of any combinations of one or more relevant listed items. In the description of the attached drawings, similar reference numerals always indicate similar elements.

[0084] The thickness of the elements in the attached drawings may be exaggerated for clarity. In addition, it can be understood that if an element is referred to as being on, coupled to, or connected to, another element, then the element may be directly formed on, coupled to, or connected to the other element, or there can be one or more intervening elements between them.Conversely, if the expressions “directly on”, “directly coupled to” and “directly connected to” are used herein, it means that there are no intervening elements. Other words used to describe the relationship between elements should be interpreted similarly, such as “between” and “directly between”, “attached” and “directly attached”, “adjacent” and “directly adjacent” and so on.

[0085] Terms such as “top”, “bottom”, “upper”, “lower”, “above”, “below”, etc. herein are used to describe the relationship of one element, layer or region with respect to another element, layer or region as shown in the attached drawings. It can be understood that in addition to the orientations described in the attached drawings, these terms should also include other orientations of the device.

[0086] It can be understood that although the terms “first”, “second”, etc. may be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Therefore, the first element can be referred to as the second element without departing from the teachings of the concept of the present disclosure.

[0087] It may also be considered that all the exemplary embodiments disclosed herein may be arbitrarily combined with each otherQIn addition, all individual technical features in the present application can be arbitrarily combined with each other, as long as the combined technical features are not contradictory. All technically feasible characteristic combinations are technical contents stated in the present application.

[0088] Finally, it should be pointed out that the aforementioned examples are only used to understand the present disclosure, and do not limit the protection scope of the present disclosure. For those of ordinary skill in the art, modifications can be made on the basis of the aforementioned examples, andthese modifications do not depart from the protection scope of the present disclosure.

Claims

CLAIMS1. A radome assembly, comprising a radome and parasitic components for radiating components, characterized in that the radome itself has a hollow structure, wherein at least one receiving compartment is formed through the hollow structure, wherein the parasitic components are arranged in the receiving compartment.

2. The radome assembly according to claim 1, characterized in that the parasitic component is fixed and positioned in the receiving compartment by a fixing device, and is held in place.

3. The radome assembly according to claim 2, characterized in that the parasitic components are arranged with fixing devices such that the parasitic components are positioned adjacent to the outer wall of the receiving compartment of the radome, or the parasitic components are pressed against the outer wall of the receiving compartment of the radome.

4. The radome assembly according to claim 2, characterized in that the fixing devices are configured to be elastic, and the parasitic components can be fixedly arranged in the receiving compartment by means of the friction generated by the preload force of the elastic fixing devices.

5. The radome assembly according to claim 4, characterized in that the fixing device includes a first support portion and a second support portion. The first support portion is capable of passing through the parasitic component and engaging with the second support portion, thereby fixing the parasitic component in place within the fixing device.

6. The radome assembly according to claim 5, characterized in that the first support portion has a head section and a first engagement section, while the second support portion has a second engagement section and an elastic section. In which, the first engagement section of the first support portion can engage with the second engagement section of the second support portion, forming an engagement structure that clamps the parasitic componentbetween the head section of the first support portion and the second engagement section of the second support portion. The elastic section is located on the second engagement section and is configured to elastically support against one wall of the receiving compartment, while the head section is supported against the other wall of the receiving compartment under the elastic deformation of the elastic section.

7. The radome assembly according to claim 6, characterized in that the fixing device, along with the parasitic component fixed in place by the fixing device, is arranged in the receiving compartment such that the elastic section elastically supports against the inner wall of the receiving compartment, while the head section is supported against the outer wall of the receiving compartment under the elastic deformation of the elastic section.

8. The radome assembly according to claim 7, characterized in that the head section is configured to be flat, allowing the parasitic component to be positioned adjacent to the outer wall of the receiving compartment of the radome.

9. The radome assembly according to claim 6, characterized in that the elastic section includes multiple elastic plates that are spaced apart from each other.

10. The radome assembly according to claim 9, characterized in that the elastic plate have a first arcuate section at their free end regions. The first arcuate section is curved in such a way that when the fixing device is placed in the receiving compartment, the smooth surface of the first arcuate section makes contact with the wall of the receiving compartment, wherein the elastic plate have a second arcuate section at the other end region adjacent to the second engagement section, with the orientation of the second arcuate section being different from that of the first arcuate section.

11. The radome assembly according to claim 1 , characterized in that the parasitic components are arranged along the circumferential direction of theradome at least at one side, spaced apart from each other, through the receiving compartment arrangement structure that is spaced apart on the at least one side of the radome.

12. The radome assembly according to claim 1, characterized in that the parasitic components are arranged in the receiving compartment, spaced apart from each other along the longitudinal direction of the radome.

13. The radome assembly according to claim 12, characterized in that the parasitic components are arranged in the receiving compartment, spaced apart from each other by spacer elements.

14. The radome assembly according to claim 1, characterized in that the radome has a first receiving compartment in the front portion, and the first parasitic components are arranged at intervals within the first receiving compartment, and / orthe radome has a second receiving compartment in the side portion, in which the second parasitic components are arranged spaced apart from each other in the receiving compartment.

15. The radome assembly according to claim 14, characterized in that, when the first parasitic components are arranged in the first receiving compartment and the second parasitic components are arranged in the second receiving compartment, the first distance between the centers of adjacent first parasitic components and the second distance between the centers of adjacent second parasitic components are the same when observed along the longitudinal direction of the radome.

16. The radome assembly according to claim 14, characterized in that the first parasitic components are configured to adjust the radiation pattern in order to enhance the gain; and / orThe second parasitic components are configured to adjust the horizontal lobe width of the radiation pattern.

17. The radome assembly according to claim 1, characterized in that theradome has a third receiving compartment in the rear portion, with the third parasitic components continuously arranged in the third receiving compartment.

18. The radome assembly according to claim 17, characterized in that the third parasitic components are configured for passive intermodulation.

19. The radome assembly according to claim 17, characterized in that, in the third receiving compartment of the radome, at least one of the following additional components is arranged in the vacant area not occupied by the third parasitic components:metal sheets, plastic sheets, or fiber-reinforced plastic sheets, used to reinforce or strengthen the structure of the receiving compartment and / or to adjust the reflective characteristics;surface elements used to adjust the dielectric constant.

20. The radome assembly according to claim 1, characterized in that the front portion of the radome is at least partially devoid of a hollow structure and thus has only a first single-layer structure, thereby reducing the impact on the RF pattern.

21. The radome assembly according to claim 1, characterized in that the side portion of the radome in the area near the edge of the reflector does not have a hollow structure and thus has a second single-layer structure flush with the outer wall of the hollow structure, thereby providing installation space for the width of the reflector.

22. A base station antenna, comprising the radome assembly according to any one of claims 1 to 21.

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