Base station antenna equipment

Abstract

To provide an antenna device for a base station which can prevent deterioration of the aesthetic appearance of the installation location and maximize space utilization. The antenna device for a base station includes a repeater, an antenna module that is tiltable and steerable relative to the front face of the repeater, and an antenna clamping unit that mediates the installation of the antenna module relative to the repeater. The antenna clamping unit conceals a wire cable that electrically connects the repeater and the antenna module.

Description

[Technical Field]

[0001] The present invention relates to an antenna apparatus for a base station, and more particularly to an antenna apparatus for a base station including a clamp unit that prevents cables from being exposed to the outside to improve aesthetics and enables beam tilting of the antenna module itself. [Background technology]

[0002] In a mobile communication system, a "base station" refers to a system that relays radio waves from mobile terminals within a cell. Base stations are typically installed on the rooftops of buildings to relay radio waves from mobile terminals. Therefore, a base station exists for each cell, and in addition to providing an interface between mobile terminals and the switching center, these base stations also control the transmission of incoming and outgoing signals, the assignment of call channels, and the monitoring of call channels on a cell-by-cell basis. Antenna devices used in base stations have become popular due to the advantage that many of them are controllable antennas capable of vertical or horizontal beam tilting.

[0003] As mobile communication services become more popular, the use of antenna devices that provide a wireless network environment that can provide more stable services is becoming more widespread. Mobile communication services have evolved from 2G (2nd Generation), which only allowed wired calls, to 3G and 4G, and recently there has been a trend toward the use of 5G mobile communication technology.

[0004] FIG. 1 is a perspective view showing the appearance of a base station antenna device according to a conventional embodiment.

[0005] As shown in Fig. 1, the base station antenna device according to the conventional embodiment is installed outdoors, and has an antenna module 10 mounted on an upright support pole 11 by fixing brackets 30 and 31, a repeater 12 mounted below the antenna module 10 by fixing brackets 32 and 33, and a structure in which the antenna module 10 and the repeater 12 are electrically connected using a plurality of cables 14. The fixing brackets 30 and 31 are respectively disposed at the upper and lower ends of the antenna module 10 to fix it to the support pole 11, and are respectively disposed at the upper and lower ends of the repeater 12 to fix it to the support pole 11. The fixing brackets 30-33 serve to fix the antenna module 10 using fasteners such as screws, bolts, nuts, etc.

[0006] However, conventional base station antenna devices have a structure that is limited to outdoor installation via a support pole 11, and the antenna module 10 is attached to the relatively upper part of the support pole 11, and the repeater 12, for example, an RRH, is attached to the relatively lower part, and then connected using a cable 14, which poses the problem of the cable 14 being exposed to the outside and detracting from the aesthetic appearance.

[0007] Although not shown, the above-mentioned problems also occur when the repeater 12 and the antenna module 10 are separate and have an electrical connection structure using a cable 14, and in the case of in-building installation, there is currently a greater demand for preventing aesthetic degradation.

[0008] Recently, in order to solve this problem of aesthetic degradation, regardless of whether the installation is indoors or outdoors, a structure (not shown) has been adopted in which an antenna module is attached to the front of the repeater, and electrical connection between the repeater and the antenna module is made using a method such as a socket pin connection rather than a cable connection.

[0009] However, even in this case, in order to tilt the beam of the antenna module, a structure in which the repeater is also tilted must be adopted, which occupies a large amount of tilting space, leading to the problem of increased space rental costs.

[0010] In addition, recently, antenna devices for base stations that are installed on outdoor and indoor walkways where there is a high flow of mobile terminal users tend to be designed with careful consideration of factors that can minimize aesthetic impairment while being compact so as to occupy less space, as mentioned above. Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention has been made to solve the above technical problems, and aims to provide an antenna device for a base station that has an electrical connection structure using a cable rather than a socket pin connection structure, while preventing the cable from being exposed to the outside.

[0012] Another object of the present invention is to provide an antenna device for a base station including an antenna clamping unit that can tilt an antenna module independently without tilting a repeater by maintaining a cable connection structure.

[0013] Another object of the present invention is to provide a base station antenna device having a structure that allows for easy in-building installation on a wall or ceiling of a room (house).

[0014] The technical problems of the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0015] An antenna device for a base station according to one embodiment of the present invention includes a repeater, an antenna module tiltably and steerably mounted on the front surface of the repeater, and an antenna clamping unit that mediates the installation of the antenna module on the repeater, and the antenna clamping unit can conceal a wire cable electrically connecting the repeater and the antenna module.

[0016] Here, the antenna clamping unit may include a fixed part that opens in the front-rear direction and is fixed to the front of the repeater, and a moving part whose rear end is accommodated and coupled in the internal space of the fixed part and whose front end tilts and steers in all four directions, including the up-down and left-right directions.

[0017] In addition, the rear end of the moving part can be prevented from coming off the outside by the front end of the fixing part.

[0018] The antenna clamping unit may further include a moving lock portion that fixes the moving portion to the fixing portion after the moving portion performs tilting and steering operations.

[0019] A gasket groove may be formed inside the front end of the fixed part, and a gasket ring may be interposed in the gasket groove to generate friction between the fixed part and the moving part.

[0020] The fixing portion is formed in a cylindrical shape that is open in the front-rear direction.

[0021] The rear end of the moving part is housed inside the fixed part and is formed in a hemispherical shape that is open in the front-rear direction.

[0022] In addition, the wire cable is provided in a wire shape that is longer than the straight-line distance between the front end connection point of the repeater and the rear end connection point of the antenna module, and the excess length of the wire cable is stored in the internal space of the fixing part.

[0023] At least two or more of the antenna modules can be installed in one repeater, and the antenna clamping units are provided in a number corresponding to the number of the antenna modules installed in the repeater.

[0024] The repeater is installed vertically and closely against the wall surface inside or outside the building.

[0025] The repeater is installed horizontally and closely to the lower surface of a structure equivalent to the ceiling indoors or outdoors.

[0026] The repeater is embedded in a ceiling finishing material of a structure equivalent to an indoor or outdoor ceiling.

[0027] The antenna clamping unit may also include an extension portion arranged perpendicular to the repeater, at least one fixing portion provided at an end of the extension portion, and a moving portion configured to connect the antenna module to each of the fixing portions, with a rear end accommodated and connected in the internal space of the fixing portion and an outer end capable of tilting and steering in all directions including up and down and left and right.

[0028] In addition, the repeaters are embedded inside the ceiling finishing material of a structure equivalent to an indoor or outdoor ceiling, and are provided in a number corresponding to the specifications of the transmitter and receiver of the antenna module provided in the antenna clamping unit.

[0029] In addition, when the number of repeaters is two or more, the antenna clamping unit includes the extension part, the fixing part, and the moving part corresponding to the number of repeaters.

[0030] In addition, when the number of repeaters is two or more, the antenna clamping unit has one extension part, and the fixed part and the moving part are provided in accordance with the number of repeaters.

[0031] In addition, when there are two or more repeaters and they are embedded and installed inside a ceiling finishing material of a structure equivalent to an indoor or outdoor ceiling, the extension portion is fixed so as to penetrate the ceiling finishing material from inside to outside so that the wire cable can be installed concealed. [Effects of the Invention]

[0032] According to the antenna device for a base station according to an embodiment of the present invention, the following various effects can be achieved.

[0033] First, the antenna clamping unit can prevent the wire cable, which electrically connects the repeater and the antenna module, from being exposed to the outside, thereby preventing the aesthetic appearance from being spoiled when installed in a building.

[0034] Second, since the repeater can be fixed and only the antenna module can be tilted and steered, it is possible to prevent an increase in space rental costs.

[0035] Third, the structure allows for easy in-building installation on the walls and ceilings of a room (house), thereby improving installation suitability. [Brief explanation of the drawings]

[0036] [Figure 1] FIG. 1 is a perspective view showing the appearance of a base station antenna device according to a conventional technique. [Figure 2] 1 is a perspective view showing the appearance of a base station antenna device according to a first embodiment of the present invention. [Figure 3] FIG. 3 is an exploded perspective view of FIG. 2. [Figure 4] 3 is a front view and a cross-sectional view taken along line AA in FIG. 2. [Figure 5] FIG. 5 is a partial cross-sectional view showing an antenna clamping unit in the configuration of FIG. 4. [Figure 6] FIG. 3 is a side view of FIG. 2. [Figure 7A] 3 is a perspective view showing an embodiment in which the specifications of the repeater in the configuration of FIG. 2 are different. [Figure 7B] 3 is an exploded perspective view showing an embodiment in which the specifications of the repeater are different from those of the configuration of FIG. 2. FIG. [Figure 7C] 3 is a side view showing an embodiment in which the specifications of the repeater are different from those of the configuration in FIG. 2. FIG. [Figure 8A] FIG. 10 is a perspective view showing the appearance of a base station antenna device according to a second embodiment of the present invention installed on the ceiling surface of a house. [Figure 8B] FIG. 10 is an exploded perspective view showing the appearance of a base station antenna device according to a second embodiment of the present invention installed on the ceiling surface of a house. [Figure 8C] FIG. 10 is a front view showing the appearance of a base station antenna device according to a second embodiment of the present invention installed on the ceiling surface of a house. [Figure 8D] FIG. 10 is a partially cutaway perspective view showing the appearance of a base station antenna device according to a second embodiment of the present invention installed on the ceiling surface of a house. [Figure 9] FIG. 10 is a perspective view showing the appearance of a base station antenna device according to a third embodiment of the present invention, which is installed on a wall surface of an indoor or outdoor building. [Figure 10] FIG. 10 is an exploded perspective view of FIG. 9. [Figure 11] 8A to 8D, and are a bottom perspective view (a) and a top perspective view (b) of a base station antenna device according to a fourth embodiment of the present invention. [Figure 12] FIG. 12 is a partially cutaway perspective view of (a) in FIG. [Figure 13A] FIG. 10 is a partially cutaway perspective view of a lower portion of a base station antenna apparatus according to a fifth embodiment of the present invention, which is another modified example of FIGS. 8A to 8D. [Figure 13B] FIG. 10 is a partially cutaway perspective view of an upper portion of a base station antenna apparatus according to a fifth embodiment of the present invention, which is another modification of FIGS. 8A to 8D. [Figure 14]1A and 1B are bottom and top perspective views showing the cable connection of a multi-antenna module to a single antenna clamping unit inside the ceiling. [Figure 15] 1A and 1B are bottom and top perspective views showing the cable connection of a multi-antenna module to a single antenna clamping unit inside the ceiling. [Figure 16] 1A and 1B are bottom and top perspective views showing the cable connection of a multi-antenna module to a single antenna clamping unit inside the ceiling. DETAILED DESCRIPTION OF THE INVENTION

[0037] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An antenna device for a base station according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] When assigning reference numerals to components in each drawing, it should be noted that the same components are assigned the same numerals as much as possible even if they are displayed in different drawings. Furthermore, when describing the embodiments of the present invention, if it is determined that a detailed description of such well-known configurations or functions would hinder understanding of the embodiments of the present invention, the detailed description will be omitted.

[0039] When describing components of embodiments of the present invention, terms such as "first," "second," "A," "B," "(a)," and "(b)" may be used. These terms are merely used to distinguish the component from other components and do not limit the nature, order, or procedure of the components. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted to have a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0040] FIG. 2 is a perspective view showing the appearance of a base station antenna device according to a first embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, FIG. 4 is a front view and a cross-sectional view along AA of FIG. 2, FIG. 5 is a partial cross-sectional view showing an antenna clamping unit of the configuration of FIG. 4, and FIG. 6 is a side view of FIG. 2.

[0041] 2 to 6, a base station antenna device 100 according to an embodiment of the present invention includes a repeater 120 and an antenna module 110 that are installed in a predetermined location. Here, the predetermined location where the base station antenna device 100 according to an embodiment of the present invention is installed is limited to an indoor or outdoor wall surface or ceiling of a building, and at least the shape of the repeater 120, among the components described below, is formed into a structure suitable for in-building installation.

[0042] The antenna module 110 may refer to an antenna module having at least one frequency band, and the repeater 120 may be a remote radio head (RRH) connected to an antenna for each frequency band provided to the antenna module 110 to transmit / receive between the antenna and a base station.

[0043] The repeater 120 is a relay device that receives and amplifies or retransmits weakened signals between a base station and a mobile communication terminal of a mobile communication system, and performs functions such as shaping distorted waveforms and readjusting timing.

[0044] In the base station antenna device 100 according to one embodiment of the present invention, although not shown, a repeater 120 is generally first mounted on a wall surface inside or outside a building, and an antenna module 110 is mounted in front of the repeater 120 via an antenna clamping unit 200 described later so as to be tiltable and steerable.

[0045] However, it goes without saying that the embodiment of the present invention does not necessarily have to be mounted on a wall surface inside a room as shown in Figures 2 to 6, but can also be installed on the ceiling inside a room (house) as shown in Figure 8A and subsequent figures, which will be explained in more detail later.

[0046] As shown in FIG. 4, the antenna module 110 may include an antenna housing 111 and a radome 113 that is provided to cover the front surface of the antenna housing 111 and forms a predetermined space between the antenna housing 111 and the radome 113.

[0047] A printed circuit board-type antenna board 115 is provided in a predetermined space of the antenna housing 111, and a plurality of radiating elements are mounted on the front surface of the antenna board 115. The radiating elements mounted on the antenna board 115 may vary depending on the type of antenna, but in one embodiment of the present invention, a dipole-type element (dipole element 117) is used. However, the radiating element does not necessarily have to be a dipole element, and may be a patch-type patch element.

[0048] Meanwhile, the base station antenna device 100 according to an embodiment of the present invention may further include an antenna clamping unit 200 for mediating coupling to the front face of the repeater 120, as shown in FIGS.

[0049] More specifically, as shown in Figures 2 to 6, the repeater 120 includes a mounting panel portion 121 that is installed in close contact with the wall surface of a room, and a housing portion 123 that is provided in front of the mounting panel portion 121 and has a predetermined space therebetween, and various internal components are provided in the predetermined space.

[0050] Although not shown, the internal components provided inside the repeater 120 may include a board (main board), two power amplifying units (PAUs) and a power supplying unit (PSU).

[0051] A number of heat sink fins 125 are integrally formed on the front surface of the housing part 123 of the repeater 120, so that system heat generated in a predetermined space can be dissipated to the outside through the heat sink fins 125.

[0052] Meanwhile, the front surface of the housing part 123 is provided with mounting grooves 127, in which portions of the heat sink fins 125 are cut out into a rectangular shape, and the antenna clamping unit 200 is coupled to the mounting grooves 127 using a plurality of assembly screws 215. However, the mounting grooves 127 do not necessarily have to be cut out into a rectangular shape on the front surface of the housing part 123 in order to install the antenna clamping unit 200, and may be formed into a circular or any other shape of coupling end shape that matches the shape of the end corresponding to each connecting portion of the antenna clamping unit 200, as in another embodiment 100' shown in Figure 9 and subsequent figures described below.

[0053] Here, the antenna clamping unit 200 may include a fixed part 210 having a cylindrical shape with openings in the front and rear directions, and a moving part 220 whose rear end is inserted into the open front part of the fixed part 210 and whose front end is connected to the antenna module 110.

[0054] The rear end of the moving part 220 housed and installed inside the fixed part 210 is formed in a semi-spherical shape with an opening at the rear, and is engaged with the front end of the fixed part 210 so as not to come off to the outside (especially forward).

[0055] In addition, the moving part 220 is open at the front and rear and communicates with the internal space of the fixed part 210, and a wire cable C is provided in the internal space communicating between the fixed part 210 and the moving part 220, providing an electrical connection between the repeater 120 and the antenna module 110.

[0056] Here, the wire cable C is provided in a wire shape longer than at least the linear distance between the front end connection point of the repeater 120 and the rear end connection point of the antenna module 110 so as to enable tilting and steering operations of the antenna module 110, which will be described later, and the excess length of the wire cable C is stored without twisting in the internal space of the fixing part 210. Therefore, the wire cable C is provided so as to be hidden from the outside, which prevents deterioration of the aesthetic appearance.

[0057] The moving unit 220 is capable of tilting and steering so as to maintain a predetermined angle in all directions, including up and down and left and right, relative to the fixed unit 210. Here, the term "tilting operation" is a concept that includes all operations in which the upper and lower ends of the antenna module 110 swing forward and backward, and the term "steering operation" is a concept that includes all operations in which the left and right ends of the antenna module 110 swing left and right.

[0058] In the base station antenna device 100 according to one embodiment of the present invention, the moving unit 220 is provided so that the tilting operation and the steering operation of the antenna module 110 are both performed simultaneously, rather than performing only one of the tilting operation and the steering operation.

[0059] More specifically, the moving unit 220 can tilt and steer the front end of the moving unit 220 at a predetermined angle in all directions including up and down or left and right directions around an arbitrary reference point at the rear end of the moving unit 220 accommodated inside the fixed unit 210 .

[0060] As the front end of the moving part 220 is capable of tilting and steering, the antenna module 110 connected to the front end is also capable of tilting and steering, allowing the designer to adjust the direction of the antenna module 110 in the direction desired.

[0061] Here, the moving part 220 performs tilting and steering operations while maintaining a certain degree of friction between it and the fixed part 210. For this purpose, a friction pad (or friction member) that generates a predetermined friction force between the moving part 220 and the fixed part 210 may be further provided on the inner surface of the fixed part 210 or the outer surface of the rear end of the moving part 220.

[0062] However, the member for providing friction between the moving part 220 and the fixed part 210 is not necessarily limited to the friction pad. That is, as shown in Fig. 5, a gasket groove 218 is formed on the inside of the front end of the fixed part 210, and a gasket ring 219 made of an elastic material (e.g., rubber material) is interposed in the gasket groove 218 to form friction between the moving part 220 and the fixed part 210. The gasket ring 219 interposed in the gasket groove 218 forms friction between the moving part 220 and the fixed part 210, allowing fine adjustment of the moving part 220 when performing a tilting or steering operation, and also providing a waterproof function that prevents the inflow of external foreign matter, including rainwater.

[0063] Meanwhile, although not shown, the antenna clamping unit 200 further includes a moving lock section that fixes the moving section 220 to the fixed section 210 at a moving fixing point after the moving section 220 tilts and steers at a predetermined angle relative to the fixed section 210.

[0064] The moving lock section can be realized by any means that is configured to fix the moving section 220 to the fixed section 210, and as one example, can be realized by a fixing bolt that penetrates the outside of the fixed section 210 in which the rear end of the moving section 220 is housed and interferes with any part of the moving section 220. The fixing bolt here is provided as a headless bolt (a bolt without a head) and is installed so as not to protrude outside the fixed section 210.

[0065] As such, according to one embodiment of the present invention, the antenna device 100 for a base station uses the antenna clamping unit 200 to prevent the wire cable C connecting the repeater 120 and the antenna module 110 from being exposed to the outside, thereby preventing a deterioration in aesthetics. In addition, the antenna module 110 is only tilted and steered, and the repeater 120 is not tilted and steered, thereby maximizing space utilization.

[0066] 7A to 7C are a perspective view, an exploded perspective view, and a side view showing an embodiment in which the specifications of the repeater are different from those of the configuration in FIG.

[0067] As shown in Figures 7A to 7C, in the base station antenna device 100 according to the first embodiment of the present invention, the antenna modules 110 have the same specifications in which a dipole type (or patch antenna element) is commonly applied, but only the specifications of the repeater 120 may be different.

[0068] 2 to 6, the repeater 120 shown in Figures 7A to 7C has a relatively shorter width in the left-right direction but a relatively longer length in the up-down direction. In this case, it is preferable that the installation position of the antenna module 110 is set to an appropriate position taking into consideration the weight, tilting operation, and steering operation of the antenna module 110.

[0069] In particular, in the case of the repeater 120 shown in FIGS. 7A to 7C, the length in the vertical direction is relatively large, which provides an advantage that two or more antenna modules 110 can be provided above and below.

[0070] 8A to 8D are a perspective view (FIG. 8A), an exploded perspective view (FIG. 8B), a front view (FIG. 8C), and a partially cutaway perspective view (FIG. 8D) showing the appearance of a base station antenna device according to a second embodiment of the present invention installed on the ceiling surface of a house.

[0071] As shown in Figures 8A to 8D, the base station antenna device 100 according to the second embodiment of the present invention can be installed not only on an indoor wall surface as shown in Figures 2 to 7C, but also on a structure such as a ceiling surface inside or outside a building (for example, a ceiling finishing material).

[0072] In this case, the repeater 120 can be arranged long in the left-right direction (horizontal direction) as shown in Figures 8A to 8D, and one of the width ends of the repeater 120 can be fixed to the lower surface of the ceiling finishing material that forms the ceiling via a ceiling mounting bracket 150C, and then the antenna module 110 can be installed on the front side of the repeater 120 as described above.

[0073] However, the repeater 120 is not necessarily limited to being arranged long in the left-right direction, and depending on the embodiment, it may be possible to arrange it long in the up-down direction.

[0074] 11 and subsequent figures, in which the repeater 120 is embedded in the ceiling finish material that forms the ceiling, it goes without saying that the portion of the repeater 120 that corresponds to the mounting panel 121 can be placed in close contact with the inner surface (top surface) of the ceiling finish material. This will be explained in more detail later.

[0075] FIG. 9 is a perspective view showing the appearance of a base station antenna device according to a third embodiment of the present invention installed on the wall surface of an indoor or outdoor building, and FIG. 10 is an exploded perspective view of FIG.

[0076] The base station antenna device 100 according to the first embodiment of the present invention shown in Figures 2 to 7C described above is realized in an embodiment in which a single antenna module 110 is provided for one repeater 120.

[0077] However, this is not necessarily limited to an embodiment in which only a single antenna module 110 is provided in one repeater 120, as in the first embodiment of the present invention, and it goes without saying that, as shown in Figures 9 and 10, two or more (i.e., multiple) antenna modules (see drawing symbols "110A, 110B" in Figures 9 and 10) can be installed in one repeater 120.

[0078] This means that when the number of repeaters 120 is two or more, the antenna clamping unit 200 is provided with the extension part 230, the fixing part 210, and the moving part 220 corresponding to the number of repeaters 120.

[0079] Here, when two antenna modules 110A, 110B are installed in one repeater 120, a board (main board), two power amplifying units (PAU) and a power supplying unit (PSU) corresponding to the number of antenna modules are provided inside one repeater 120 so that each antenna module 110A, 110B can perform independent transmission and reception functions.

[0080] Similarly, the antenna clamping units 200 are provided in a number corresponding to the number of antenna modules 110A, 110B (see reference numerals 200A, 200B in FIGS. 9 and 10). This is different from the antenna clamping units 200 provided in a number corresponding to the number of repeaters 120.

[0081] However, in the base station antenna device 100 according to the first embodiment of the present invention shown in Figures 2 to 7C, the open rear end of the fixed part 210 is directly attached to the front surface of the housing part 123 of the repeater 120, whereas in the base station antenna device 100' according to the third embodiment of the present invention shown in Figures 9 and 10, the antenna clamping units 200A, 200B are arranged parallel to and spaced apart from the front surface of the housing part 123 of the repeater 120, and may further include an extension part 230 extending to connect the open end of one side of the fixed part 210 to the repeater side coupling end 127' formed on the front surface of the housing part 123.

[0082] Here, a ring-shaped fastening end 229 is provided at the open tip of the moving part 220, and the fastening end 229 of the moving part 220 can be firmly fastened to the antenna side coupling end 119 provided on the back of the antenna modules 110A and 110B using a fastening screw (not shown) or the like.

[0083] The repeater 120 can be easily mounted on an indoor or outdoor wall W via a mounting bracket 150W and fastening members 129 such as a plurality of bolts fastened thereto.

[0084] As described above, the base station antenna device 100' according to the third embodiment of the present invention not only makes it possible to realize beam tilting and steering operations of multiple antenna modules 110A, 110B in a single repeater 120 in the desired direction, thereby enabling directional adjustment, but also has the advantage of being compact yet minimizing exposure of the wire cable C to prevent deterioration of the aesthetic appearance.

[0085] FIG. 11 is a modified example of FIGS. 8A to 8D, and is a bottom perspective view (a) and a top perspective view (b) of a base station antenna device according to a fourth embodiment of the present invention, and FIG. 12 is a partially cutaway perspective view of (a) of FIG. 11.

[0086] The base station antenna device 100' according to the fourth embodiment of the present invention can be installed on the ceiling of an indoor (house) or on a ceiling-like structure outdoors, as in the second embodiment 100 of the present invention shown in Figures 8A to 8D, and it is also possible to install at least the repeater embedded inside a structure equivalent to a ceiling (for example, a ceiling finishing material) to improve the appearance.

[0087] More specifically, referring to Figures 11 and 12, the repeater 120 is mounted and installed via a mounting bracket 150C on the inner surface (top surface) of a ceiling finishing material, which is a structure equivalent to a ceiling, so that the portion corresponding to the mounting panel portion 121 is in close contact with the mounting bracket 150C, and multiple antenna modules 110A, 110B can be provided so that they can be electrically connected to the mounting panel portion 121 of the repeater 120 via the extension portion 230 of the moving portion 220 by a wire cable C.

[0088] In this case, it is preferable that the ceiling finishing material, which is a structure equivalent to a ceiling, is provided with a through-hole H formed by penetrating the portions corresponding to the extension portions 230 of the antenna clamping units 200A, 200B in the vertical direction in order to allow the wire cable C to penetrate and connect.

[0089] As described above, the base station antenna device 100' according to the fourth embodiment of the present invention has the advantage of being able to minimize deterioration of the aesthetic appearance by embedding at least the repeater 120 inside a structure such as a ceiling, thereby further suppressing external exposure of not only the wire cable C but also the repeater 120. In this case, since the antenna modules 110A and 110B are exposed to the outside, there is no difference from the base station antenna device 100 according to the first and second embodiments of the present invention in terms of directivity adjustment by tilting and steering operations.

[0090] 13A and 13B are another modified example of FIGS. 8A to 8D, and are a partially cutaway perspective view of a base station antenna apparatus according to a fifth embodiment of the present invention.

[0091] The base station antenna devices 100, 100' according to the first to fourth embodiments of the present invention described above have been explained on the assumption that one antenna module 110, 110A, 110B is provided in each of the antenna clamping units 200, 200A, 200B, respectively. However, it is not necessary that one antenna module 110 is provided in one antenna clamping unit 200, and as shown in Figures 13A and 13B, multiple antenna modules 110A to 110C may be provided in one antenna clamping unit 200.

[0092] In other words, when the number of repeaters 120 is two or more, the antenna clamping unit 200 has one extension part 230, and the fixed part 210 and the moving part 220 are provided corresponding to the number of repeaters 120.

[0093] More specifically, as shown in Figures 13A and 13B, the antenna clamping unit 200 includes a single extension portion 230 that penetrates the ceiling and is vertically connected to the mounting panel portion 121 of the repeater 120, three fixed portions 210A, 210B, and 210C that extend from the single extension portion 230 and are each equipped with at least two or more antenna modules (three in the fifth embodiment of the present invention, see reference numerals 100A to 100C) that can be installed thereon, and three moving portions (see reference numerals 220A, 220B, and 220C) that are connected to the fixed portions 210A, 210B, and 210C, respectively, so as to be capable of tilting and steering.

[0094] In this way, the three fixed parts 210A, 210B, 210C and moving parts 220A, 220B, 220C formed by extending from the single extension part 230 can be tilted and steered to adjust the direction of the antenna modules 110A, 110B, 110C in the desired direction, respectively, which provides the advantage of being able to install an overall compact base station antenna device while preventing the aesthetic appearance from being impaired.

[0095] Here, it goes without saying that the upper end of the single extension 230 can be directly connected to one surface of the repeater 120 through a penetration H formed in the ceiling finishing material forming the ceiling.

[0096] More specifically, when there are two or more repeaters 120 and they are embedded in the ceiling finishing material of a structure equivalent to an indoor or outdoor ceiling, the extension 230 is fixed so as to penetrate the ceiling finishing material from inside to outside so that the wire cable C can be installed concealed.

[0097] 14 to 16 are a bottom perspective view (a) and a top perspective view (b) showing how the cables of the multi-antenna module are connected to a single antenna clamping unit inside the ceiling.

[0098] In an embodiment of the base station antenna device according to the present invention, a plurality of antenna modules 110A" to 110C" are provided in one antenna clamping unit 200. In this case, if the antenna board (not shown) of each of the antenna modules 110A" to 110C" conforms to the 4T4R standard so that four transmitters (4T) and four receivers (4R) function, a number of repeaters 120 corresponding to the standard of such antenna modules 110A" to 110C" is required.

[0099] For example, as shown in Figure 14, if the standard of repeater 120 is adopted for 8T8R, two repeaters are not necessarily required, and it goes without saying that if two antenna modules 110A" and 110B" of the 4T4R standard are installed on the lower surface of the ceiling, only one repeater 120 for 8T8R can be installed inside the ceiling.

[0100] Also, as shown in FIG. 15, three antenna modules 110A", 110B", and 110C" do not necessarily have to be installed in one antenna clamping unit 200; it is also possible for only two antenna modules 110A" and 110B" to be installed. In this case, if the standard of antenna modules 110A" and 110B" is 4T4R, two repeaters 120 (see drawing symbols 120A and 120B) for 4T4R that comply with the same standard can also be installed inside the ceiling.

[0101] As shown in FIG. 16, when three antenna modules 110A", 110B", and 110C" are provided in one antenna clamping unit 200 so as to be exposed on the lower surface of the ceiling, and each antenna module conforms to the 4T4R standard, three repeaters 120A, 120B, and 120C corresponding to the 4T4R standard may be provided inside the ceiling.

[0102] In this case, connecting terminals 122a to 122d are provided at the longitudinal ends of the three repeaters 120A, 120B, and 120C to which wire cables C corresponding to each transmitter and receiver (4T4R) are connected, and the four wire cables C connected to each connecting terminal 122a to 122d are connected in bundles and can be electrically connected to each antenna module 110A", 110B", and 110C" in a hidden state from the outside through the extension part 230 of the antenna clamping unit 200 via a penetration part H formed to penetrate the ceiling vertically.

[0103] Such installation features of the wire cable C are equally applicable to the cases of FIGS.

[0104] In this way, the direction of each of the antenna modules 110A" to 110C" can be adjusted by tilting and steering in the desired direction on two or more (preferably three or more) moving parts 220 connected to the single extension part 230 and the fixed part 210, which provides the advantage of being able to install an overall compact base station antenna device while preventing the aesthetic appearance from being impaired.

[0105]

[0033] The present invention relates to a base station antenna device and a method for manufacturing the same.

[0034] The present invention relates to a base station antenna device and a method for manufacturing the same.

[0035] The present invention relates to a base station antenna device and a method for manufacturing the same.

[0036] The present invention relates to a base station antenna device and a method for manufacturing the same.

[0037] The present invention relates to a base station antenna device and a method for manufacturing the same.

[0038] The present invention relates to a base station antenna device and a method for manufacturing the same. [Industrial Applicability]

[0106] The present invention provides an antenna device for a base station that has an electrical connection structure using a cable rather than a socket pin connection structure, but prevents the cable from being exposed to the outside, allows the antenna module to be tilted independently without the tilting operation of a repeater, and has a structure that makes it easy to install in-building, such as on the wall or ceiling of a room (house). [Explanation of symbols]

[0107] 100: Base station antenna device 110: Antenna module 111: Antenna housing 113: Radome 115: Antenna board 117: Dipole element 120: Repeater 121: Mounting panel 123: Housing part 125: Numerous heat sink fins 127: Mounting groove 200: Antenna clamping unit 210: Fixed part 220: Moving part S: Internal space C: Wire cable

Claims

1. A repeater and an antenna module provided on a front surface of the repeater so as to be tiltable and steerable; an antenna clamping unit for mediating installation of the antenna module on the repeater; The antenna clamping unit conceals a wire cable electrically connecting the repeater and the antenna module, The antenna clamping unit comprises: a fixing portion that opens in the front-rear direction and is fixed to the front surface of the relay; a moving part whose rear end is accommodated and coupled in the internal space of the fixed part and whose front end is tiltable and steerable in four directions including up and down and left and right directions, The antenna clamping unit comprises: The base station antenna device further includes a moving lock unit that fixes the moving unit to the fixed unit after the moving unit performs tilting and steering operations.

2. A repeater; an antenna module provided on a front surface of the repeater so as to be tiltable and steerable; an antenna clamping unit for mediating installation of the antenna module on the repeater; The antenna clamping unit conceals a wire cable electrically connecting the repeater and the antenna module, The antenna clamping unit comprises: a fixing portion that opens in the front-rear direction and is fixed to the front surface of the relay; a moving part whose rear end is accommodated and coupled in the internal space of the fixed part and whose front end is tiltable and steerable in four directions including up and down and left and right directions, A gasket groove is formed on the inner side of the front end of the fixing part, The base station antenna device has a gasket ring interposed in the gasket groove, which generates a frictional force between the fixed part and the moving part.

3. 3. The base station antenna device according to claim 1, wherein the rear end of said moving part is prevented from coming off the outside by the front end of said fixed part.

4. 3. The base station antenna device according to claim 1, wherein the fixing portion is formed in a cylindrical shape that is open in the front and rear directions.

5. 3. The base station antenna device according to claim 1, wherein a rear end of said moving part is housed inside said fixed part and is formed in a hemispherical shape that is open in the front-rear direction.

6. A repeater; an antenna module provided on a front surface of the repeater so as to be tiltable and steerable; an antenna clamping unit for mediating installation of the antenna module on the repeater; The antenna clamping unit conceals a wire cable electrically connecting the repeater and the antenna module, The wire cable is provided in a wire shape having a length longer than a linear distance between a front end connection point of the repeater and a rear end connection point of the antenna module, The antenna device for a base station, wherein the excess length portion of the wire cable is stored in the internal space of the fixing part.

7. At least two or more of the antenna modules can be installed in one repeater, 7. The base station antenna device according to claim 1, wherein the number of said antenna clamping units provided corresponds to the number of said antenna modules provided in said repeater.

8. 7. The base station antenna device according to claim 1, wherein said repeater is installed vertically and in close contact with a wall surface inside or outside a building.

9. 10. The base station antenna device according to claim 1, wherein said repeater is installed horizontally and in close contact with the lower surface of a structure equivalent to an indoor or outdoor ceiling.

10. 7. The base station antenna device according to claim 1, wherein said repeater is embedded in a ceiling finishing material of a structure equivalent to an indoor or outdoor ceiling.

11. A repeater; an antenna module provided on a front surface of the repeater so as to be tiltable and steerable; an antenna clamping unit for mediating installation of the antenna module on the repeater; The antenna clamping unit conceals a wire cable electrically connecting the repeater and the antenna module, The antenna clamping unit comprises: an extension disposed perpendicular to the repeater; At least one fixing portion provided at an end of the extension portion; a moving unit, the moving unit being provided so that the antenna module can be coupled to each of the fixed units, the rear end of which is accommodated and coupled in the internal space of the fixed unit, and the outer end of which is tiltable and steerable in four directions including up and down and left and right directions; When the number of the repeaters is two or more, the antenna clamping unit The antenna device for a base station has one extension portion, and the fixed portion and the moving portion are provided in a number corresponding to the number of repeaters.

12. The base station antenna device according to claim 11, wherein the repeaters are embedded in a ceiling finishing material of a structure equivalent to an indoor or outdoor ceiling, and are provided in a number corresponding to the specifications of the transmitter and receiver of the antenna module provided in the antenna clamping unit.

13. When the number of the repeaters is two or more and they are embedded in the ceiling finishing material of the structure equivalent to the indoor or outdoor ceiling, The base station antenna device according to claim 11, wherein the extension portion is fixed so as to penetrate the ceiling finishing material from inside to outside so that the wire cable is installed in a concealed manner.

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