Antenna Device

Abstract

Provided is an antenna device capable of reducing restrictions on installation space on an indoor or outdoor installation wall surface. [Solution] The antenna device particularly includes an antenna housing part having a predetermined installation space formed therein and a plurality of forward heat dissipation fins protruding from at least one side of its front surface, a main board which is stacked in the installation space of the antenna housing part and has a predetermined heat generating element mounted on its front surface and is mounted so as to be in thermal contact with the front surface of the antenna housing part having the plurality of forward heat dissipation fins, a plurality of filters which form a predetermined layered layer in front of the main board and are stacked in the central portion except for where the plurality of forward heat dissipation fins are formed, an antenna element assembly having a plurality of radiating elements stacked in front of the plurality of filters, and an installation plate which is fixed in surface contact with the rear surface of the antenna housing part and mediates surface-contact installation against a vertically arranged installation wall.

Description

[Technical field]

[0001] The present invention relates to an antenna apparatus, and more particularly to an antenna apparatus that is easy to install on a wall surface indoors or outdoors by arranging a heat dissipation structure to concentrate heat dissipation at a front part of an antenna housing part and eliminating a rear heat dissipation fin. [Background technology]

[0002] Generally, an antenna device includes, in an installation space of an antenna housing part that is formed so as to open at the front, a main board on which a predetermined heat generating element is mounted, a number of filters stacked in front of the main board, and an antenna element board (or antenna element assembly) stacked in front of the multiple filters, in sequence from the inner surface side of the antenna housing part to the front.

[0003] Here, a radome may be provided on the front surface of the antenna housing to protect the main board, the multiple filters, the multiple antenna elements, and the like, which are stacked in the installation space of the antenna housing.

[0004] Therefore, in the case of an antenna device according to conventional technology, by providing a radome, most of the driving heat generated from a specific heat-generating element mounted on the main board is configured to be dissipated rearward through a number of rear heat dissipation fins provided on the rear surface of the antenna housing.

[0005] However, in such conventional antenna devices, a number of rear heat dissipation fins for dissipating the heat generated by the system to the rear of the antenna housing must be formed at the rear of the antenna housing, which requires a space for air circulation between the rear heat dissipation fins and the installation wall, which limits product installation due to restrictions on installation conditions, etc. In addition, in such conventional antenna devices, a number of rear heat dissipation fins for dissipating the heat generated by the system to the rear of the antenna housing must be formed integrally with the antenna housing so as to protrude rearward, which requires an installation space of at least the volume occupied by the rear heat dissipation fins, which leads to installation restrictions on the installation wall of public facilities such as subways. Summary of the Invention Problem to be solved by the invention

[0006] The present invention has been devised to solve the above technical problems, and has an object to provide an antenna device that can reduce the constraints on the installation space on an indoor or outdoor installation wall.

[0007] Another object of the present invention is to provide an antenna device in which internal components are distributed in positions with different heat dissipation performance according to the amount of heat generated, and the area of ​​the antenna element assembly protected by a conventional radome is minimized, thereby maximizing forward heat dissipation performance.

[0008] 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]

[0009] One embodiment of the antenna device according to the present invention includes an antenna housing part having a number of front heat dissipation fins integrally formed on a front surface of the antenna housing part, an antenna element assembly stacked on the front surface of the antenna housing part and exposed forward between the number of front heat dissipation fins formed on the left and right sides of the antenna housing part, and an installation plate disposed at a rear part of the antenna element assembly and in an installation space inside the antenna housing part, the front surface of the filter being fixed to be in surface contact with the rear surface of the antenna housing part and the rear surface being installed in surface contact with an installation wall surface, and mediating the installation of the antenna housing part.

[0010] Another embodiment of the antenna device according to the present invention includes an antenna housing part having a predetermined installation space formed therein and a plurality of front heat dissipation fins protruding from at least one side of a front surface of the antenna housing part; a main board arranged in a stacked manner in the installation space of the antenna housing part, having a predetermined heat generating element mounted on a front surface of the main board and mounted in thermal contact with the front surface of the antenna housing part having the plurality of front heat dissipation fins; a plurality of filters forming a predetermined layered layer in front of the main board and stacked in a central portion excluding an area where the plurality of front heat dissipation fins are formed; an antenna element assembly including a plurality of radiating elements stacked in front of the plurality of filters; and an installation plate fixed in surface contact with a rear surface of the antenna housing part and mediating surface-contact installation with an installation wall arranged vertically.

[0011] Another embodiment of the antenna device according to the present invention includes an antenna housing part having a predetermined installation space formed therein and having a number of front heat dissipation fins protruding forward on left and right sides centered on a central part of the front surface so as to divide the antenna housing part into two parts; a main board which is stacked in the installation space of the antenna housing part and has a predetermined heat generating element mounted on its front surface and is mounted so as to be in thermal contact with an inner surface of the antenna housing part having the number of front heat dissipation fins; a number of filters which form a predetermined layered layer in front of the main board and are stacked in the central part except for where the number of front heat dissipation fins are formed; an antenna element assembly including a number of radiating elements stacked on a front surface of the antenna housing part corresponding to the number of filters; and an installation plate which is fixed in surface contact with a rear surface of the antenna housing part and mediates surface-contact installation against an installation wall arranged vertically.

[0012] Here, the antenna housing part may include a front housing having a frame end that protrudes forward by a forward protruding height of the plurality of front heat dissipation fins and a forward protruding accommodating portion in which the plurality of filters and the plurality of antenna element assemblies are accommodated, and a rear housing that is arranged to cover an opened rear surface of the front housing and is in surface contact with a front surface of the mounting plate.

[0013] The antenna may further include a radome coupled to the frame end portion, which is a front end of the forwardly protruding receiving portion of the front housing.

[0014] The forward-protruding receiving portion may include a shield panel that partitions the plurality of filters disposed relatively to the rear portion from the antenna element assembly disposed relatively to the front portion.

[0015] Also, the forward protruding receiving portion may be formed at a center between the two front heat dissipation fins and may be elongated in the vertical direction.

[0016] Also, the front heat dissipating fins may be elongated vertically in the up-down direction and spaced a predetermined distance apart from adjacent front heat dissipating fins in the left-right direction.

[0017] Also, at least one screw fastening hole may be formed in the installation plate, and a screw fastening end for fastening an assembly screw may be formed in a position corresponding to the screw fastening hole in the rim of the front housing.

[0018] In addition, the screw fastening end may have a downwardly opening "U"-shaped screw engagement groove that engages with the forward-protruding head in the direction of gravity after the installation plate is fixed so that the rear surface is in surface contact with the installation wall surface by the assembly screw.

[0019] The mounting plate may be formed as a vertical panel that is in surface contact with the mounting wall and is made of a heat conductive material.

[0020] The heat generating element mounted on the main board may be mounted such that a front surface thereof is in surface thermal contact with a rear surface of the front housing immediately behind the plurality of front heat dissipation fins.

[0021] In addition, the heat generating elements mounted on the main board may include a first group of heat generating elements arranged immediately behind a left side heat dissipation fin formed on the left side among the numerous front heat dissipation fins, and a second group of heat generating elements arranged immediately behind a right side heat dissipation fin formed on the right side among the numerous front heat dissipation fins, and a rear portion of the front housing may be integrally formed with a number of heat transfer grooves corresponding to the forward protruding shapes of the first group of heat generating elements and the second group of heat generating elements.

[0022] Also, a PSU board may be arranged below the main board, and a front surface of PSU-related elements mounted on the PSU board may be arranged to be in close contact with a rear surface of the front housing. Effect of the Invention

[0023] According to an embodiment of the antenna device of the present invention, the antenna device can be disposed so that the rear surface of the antenna housing part is closely attached to the front side of the mounting plate, and the rear side of the antenna device is closely attached to the front surface of the mounting wall, thereby reducing the constraints on the installation space.

[0024] In addition, according to an embodiment of the antenna device of the present invention, the heat generating element which generates a relatively large amount of heat is designed and arranged at a position where a large number of front heat dissipation fins are formed, and the internal structure which generates a relatively small amount of heat is designed and arranged at a position where a large number of front heat dissipation fins are not formed, thereby achieving the effect of maximizing heat dissipation performance without forming rear heat dissipation fins. [Brief description of the drawings]

[0025] [Figure 1] 1 is a perspective view of an antenna device according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a front view of FIG. [Diagram 3] 2 is a side view showing the state of installation on the installation wall surface of FIG. 1. [Figure 4a] FIG. 3 is a cutaway perspective view taken along line AA in FIG. 2. [Figure 4b] FIG. 3 is a cutaway perspective view taken along line BB in FIG. 2. [Figure 5a] FIG. 2 is an exploded perspective view of the front part of FIG. [Figure 5b] FIG. 2 is an exploded perspective view of the rear portion of FIG. 1. [Figure 6a] FIG. 5C is an exploded front perspective view showing an antenna element assembly in the configuration of FIGS. 5a and 5b. [Figure 6b] FIG. 5C is an exploded rear perspective view showing an antenna element assembly in the configuration of FIGS. 5a and 5b. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an antenna device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0027] In 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 shown in different drawings. In addition, in describing the embodiments of the present invention, if a detailed description of related known configurations or functions is deemed to hinder understanding of the embodiments of the present invention, the detailed description will be omitted.

[0028] In describing the components of the embodiments of the present invention, terms such as 1, 2, A, B, (a), (b) and the like may be used. Such terms are merely intended to distinguish the components from other components, and do not limit the essence, order, or procedure of the components. In addition, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the contextual meaning of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0029] FIG. 1 is a perspective view of an antenna device according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a side view showing the state of installation on an installation wall of FIG.

[0030] As shown in Figures 1 to 3, an antenna device 1 according to one embodiment of the present invention includes an antenna housing part 100 having a number of front heat dissipation fins 111, 112 integrally formed on the front surface of the antenna housing part 100, an antenna element assembly 300 stacked on the front surface of the antenna housing part 100 and exposed forward between the number of front heat dissipation fins 111, 112 formed on the left and right sides of the antenna housing part 100, a number of filters 500 arranged at the rear part of the antenna element assembly 300 and arranged in an installation space 110s inside the antenna housing part 100, and an installation plate 600 whose front surface is fixed to be in surface contact with the rear surface of the antenna housing part 100 and whose rear surface is installed in surface contact with an installation wall surface W, and which mediates the installation of the antenna housing part 100.

[0031] However, the embodiment of the present invention should not necessarily be defined by the antenna device 1 according to the above-described embodiment. As will be described later, it goes without saying that the antenna device 1 according to the embodiment of the present invention can be defined by other embodiments and / or other embodiments.

[0032] More specifically, the antenna device 1 according to another embodiment of the present invention includes an antenna housing part 100 having a predetermined installation space 110s formed therein and having a number of front heat dissipation fins 111, 112 protruding forward from the left and right sides (i.e., the left and right sides) centered on the center of the front surface of the antenna housing part 100 at two locations, and a heat generating element (not shown) mounted on the front surface of the antenna housing part 100. The heat generating element (not shown) is mounted on the front surface of the antenna housing part 100 and is in thermal contact with the front surface of the antenna housing part 100. the antenna element assembly 300 includes a main board 410 mounted so as to form a predetermined layered layer in front of the main board 410, a number of filters 500 stacked in the central portion excluding the area where the number of front heat dissipation fins 111, 112 are formed, an antenna element assembly 300 including a number of radiating elements 330 stacked in front of the number of filters 500, and an installation plate 600 fixed to be in surface contact with the rear surface of the antenna housing portion 100 and mediating surface-contact installation against an installation wall W arranged perpendicularly.

[0033] In addition, the antenna device 1 according to still another embodiment of the present invention includes an antenna housing 100 having a predetermined installation space 110s formed therein and having a number of front heat dissipation fins 111, 112 protruding forward from left and right sides (i.e., left and right sides) centered on a center portion of the front surface so as to partition the antenna housing 100 into two portions, and a main board 4 mounted in the installation space 110s of the antenna housing 100, having a predetermined heat generating element mounted on the front surface, and being in thermal contact with an inner surface of the antenna housing 100 having the plurality of front heat dissipation fins 111, 112. 10, a number of filters 500 which form a predetermined layered layer in front of the main board 410 and are stacked in the central portion except for the area where the number of front heat dissipation fins 111, 112 are formed, an antenna element assembly 300 having a number of radiating elements which are stacked on the front surface of the antenna housing part 100 corresponding to the front of the number of filters 500, and an installation plate 600 which is fixed in surface contact with the back surface of the antenna housing part 100 and mediates surface contact installation on an installation wall W which is arranged perpendicularly.

[0034] 4a and 4b are cutaway perspective views taken along lines AA and BB in FIG. 2, and FIGS. 5a and 5b are exploded perspective views of the front and rear parts of FIG.

[0035] The specific configuration and the effects of the antenna device 1 according to the present invention embodied in the above-mentioned three embodiments will now be described in detail.

[0036] For reference, the main board 410 may correspond to the substrate unit 400 that forms one layer on the inner surface of the antenna housing unit 100 together with a PSU board 420 described later.

[0037] Here, the antenna housing unit 100 may include a front housing 110 having a front-protruding accommodating portion 115 formed therein, the front-protruding accommodating portion 115 protruding forward by the forward protruding height of the plurality of front heat dissipation fins 111, 112 and accommodating a plurality of filters 500 and a plurality of antenna element assemblies 300, and a rear housing 120 disposed to cover the open rear surface of the front housing 110 and in surface contact with the front surface of the installation plate 600. Therefore, the "rear surface" of the antenna housing unit 100 may be interpreted as referring to the rear surface of the rear housing 120, and the "inner surface" of the antenna housing unit 100 may be interpreted as referring to the rear surface of the front housing 110 or the front surface of the rear housing 120 forming the installation space 110s.

[0038] In the antenna device 1 according to an embodiment of the present invention, the antenna element assembly (or radiating element) is generally placed at the front of the product, followed by a stack of a filter and a main board in the rear direction. Therefore, unlike antenna devices according to conventional technology in which a number of rear heat dissipation fins are necessarily formed on the rear housing side where the main board is placed, where the most heat is generated during operation, the rear of the rear housing 120 does not have rear heat dissipation fins for heat dissipation, and can be formed to have only a vertical surface that is in surface contact with the front surface of the mounting plate 600.

[0039] If a large number of rear heat dissipation fins are not provided on the rear side of the rear housing 120, the antenna housing part 100 can be directly connected and fixed closer to the installation wall W using the installation plate 600 described below as an intermediary, which provides the advantage of making it easier to secure installation space when installing the antenna.

[0040] Meanwhile, the antenna device 1 according to the embodiment of the present invention may further include a radome 200 coupled to the front end of the forward protruding receiving portion 115 of the front housing 110 .

[0041] The radome 200 here is different in that, whereas the antenna device according to the conventional technology is configured to cover the entire front surface of the antenna housing part, the radome 200 here is configured to cover only the forward protruding receiving part 115 formed to protrude forward at the center part of a number of forward heat dissipation fins 111, 112 provided in two places on the left and right sides of the antenna housing part 100.

[0042] This can be said to be a characteristic of the mechanical design change that has been made in response to the technological trend of reducing the installation area of ​​the antenna element assembly 300 as the size of the cell is reduced by the Small Cell Network (SCN) technology, which is one of the various application technology candidates for increasing frequency efficiency in the recent 5G cellular network. That is, in the case of conventional technologies such as massive MIMO or full dimensional MIMO (FD-MIMO), the number of radiating elements used in the antenna element assembly 300 increases exponentially, so the installation area becomes huge, and the radome 200 needs to be arranged to protect the entire antenna element assembly 300, so conventionally there was a limitation in that the system heat caused by the operation of the antenna device could only be dissipated in a concentrated manner to the rear.

[0043] In this way, in the case of the antenna device 1 of an embodiment of the present invention, the system heat generated from the heat generating element mounted on the main board 410 is dissipated forward using a number of forward heat dissipation fins 111, 112 protruding forward from the antenna housing part 100, which has the advantage of making it possible to easily install the antenna device 1 even if the installation space relative to the installation wall surface W is narrow.

[0044] More specifically, at least one screw fastening hole 613 may be formed in the installation plate 600, and a screw fastening end 113 for fastening an assembly screw (not shown) may be formed in the frame of the front housing 110 at a position corresponding to the screw fastening hole 613.

[0045] The assembly screw is used not only to fix the mounting plate 600 to the mounting wall W, but also to stably mount or connect the antenna housing part 100 to the mounting plate 600 by engaging the head of the assembly screw with the front end of the screw fastening end 113, as described below.

[0046] In order to mount or connect the antenna housing portion 100 to the mounting plate 600, the screw fastening end 113 may have a screw engagement groove 114 formed in a "U" shape opening downward, as shown in FIG. 2.

[0047] In order to stably install the antenna housing part 100 on the installation plate 600, the assembly screws are first provisionally assembled into the screw fastening holes 613, and the heads of the assembly screws are provisionally fastened at a predetermined distance from the front surface of the installation plate 600 without being completely in contact with the front surface of the installation plate 600. Then, the screw engagement grooves 114 of the screw fastening ends 113 formed on the frame of the front housing 110 of the antenna housing part 100 are moved from the top to the bottom so as to engage with the body of the assembly screws excluding their heads. Then, the assembly screws are firmly fastened using a fastener such as a screwdriver, so that the heads of the assembly screws are stably and tightly coupled to the front surface of the screw fastening ends 113.

[0048] Here, the mounting plate 600 may be formed as a vertical panel that also makes surface contact with the mounting wall W and is made of a thermally conductive material. Since the rear surface of the mounting plate 600 is formed to make surface contact with the mounting wall W, the space between the rear surface of the rear housing 120 of the antenna housing part 100 and the mounting wall W is minimized, and heat transferred through the vertical surface of the rear housing 120 made of a thermally conductive material can be easily transferred (dissipated) backward due to the material properties of the thermally conductive material.

[0049] In addition, as shown in Figures 2 to 4b, it is preferable that the mounting plate 600 is formed to have a left-right width that is at least greater than the left-right width of the rear housing 120 so that heat transferred from the rear housing 120 can be smoothly dissipated to the outside through the left or right side.

[0050] Meanwhile, it is preferable that the forward protruding receiving portion 115 is formed in the center between the multiple front heat dissipation fins 111 and 112 provided at two locations, and is formed long in the vertical direction.

[0051] More specifically, as shown in FIG. 5b, an installation space 110S for installing the main board 410 is formed between the front housing 110 and the rear housing 120, and a filter receiving groove 116 described below is formed which communicates with the installation space 110S in which the main board 410 is installed, and the front frame end may be formed to protrude forward of the front housing 110.

[0052] Similarly, the inside of the forward-protruding accommodating portion 115 forms a filter receiving groove 116, which is a space in which a number of filters 500 are arranged, and the filter receiving groove 116 and the number of filters 500 arranged therein are formed or arranged to be long in the vertical direction, similar to the forward-protruding accommodating portion 115, and the antenna element assembly 300 stacked on the front side of the number of filters 500 may also be arranged to be long in the vertical direction.

[0053] The multiple filters 500 may be multiple cavity filter assemblies having resonators (not shown) in multiple cavities, respectively, and may be arranged on the front surface of the main board 410 to form a single layered layer.

[0054] More specifically, a filter receiving groove 116 having a groove shape for fitting a plurality of filters 500 may be formed on the rear surface of the front housing 110, which corresponds to the front surface of the main board 410, and a plurality of filters 500 may be inserted into the filter receiving groove 116.

[0055] The main board 410 may be stacked in the installation space 110S between the front housing 110 and the rear housing 120 of the antenna housing unit 100.

[0056] Here, analog amplification elements (for example, a PA element and an LNA element) may be mounted as main heat generating elements on the front surface of the main board 410. The analog amplification elements are the main heat generating elements that generate the most heat during system operation of the antenna device, and if the heat is accumulated without being released from the installation space 110S of the antenna housing unit 100, it becomes a major cause of degradation in the performance of the entire antenna device.

[0057] Therefore, although all heat generating elements can be mounted on both sides of the main board 410, it is preferable to mount the heat generating elements with a relatively high heat output on the front side facing the rear side of the front housing 110, and to mount the heat generating elements with a relatively low heat output on the rear side facing the front side of the rear housing 120, which is advantageous for heat dissipation.

[0058] In this case, as shown in FIG. 5a, a number of front heat dissipation fins 111, 112 are formed in two locations on the front of the front housing 110, centered around the center, as a first front heat dissipation fin section 111 on the left side and a second front heat dissipation fin section 112 on the right side, and therefore the heat generating elements mounted on the front of the main board 410 are also formed in two locations, as a first heat generating element group 411 on the left side and a second heat generating element group 412 on the right side, and each of the heat generating element groups 411, 412 may be designed to be in surface thermal contact with the positions corresponding to the rear faces of the front front heat dissipation fin sections 111, 112.

[0059] The heat generated from each of the heat generating element groups 411, 412 arranged in surface thermal contact with the rear surface of the front housing 110 corresponding to the positions where each of the front heat dissipation fin portions 111, 112 is formed is transferred by thermal conduction directly through the front housing 110 made of a metal material (or a thermally conductive material) and then exchanged with the outside air through each of the front heat dissipation fin portions 111, 112, thereby maintaining a high level of heat dissipation performance.

[0060] Conversely, heat generated from the heat generating elements mounted on the rear of the main board 410 is transferred directly through the rear housing 120 made of a metal material (or a thermally conductive material) in a thermally conductive manner, and can then be dissipated in the left and right directions of the rear housing 120 through a metal material (thermally conductive material) arranged in surface contact therewith.

[0061] Here, since the installation space 110S only needs to be a space larger than the thickness of the main board 410, a slim design that minimizes the thickness of the product in the front-rear direction is possible.

[0062] Meanwhile, the filter receiving groove 116 may be provided in the form of a space communicating with the installation space 110S. A number of filters 500 may be accommodated in the filter receiving groove 116 and stacked on the front surface of the main board 410.

[0063] Meanwhile, a PSU board 420 may be provided below the main board 410, which is arranged vertically side by side to form the same layered layer, and which is equipped with a number of filters 500 and a PSU element (not shown) that supplies a predetermined power source to the heat generating element side of the main board 410.

[0064] Here, like the heat generating elements mounted on the main board 410, the PSU elements mounted on the PSU board 420 are preferably arranged in close contact with the rear surface of the front housing 110 so as to be in thermal contact therewith.

[0065] In addition, although not shown, the rear surface of the front housing 110 may have a heat transfer groove machined to correspond to the forward protruding shapes (external shapes) of the heat generating elements mounted on the front surface of the main board 410 and protruding forward, and the PSU elements mounted on the front surface of the PSU board 420 and protruding forward.

[0066] 6a and 6b are front and rear exploded perspective views showing the antenna element assembly in the configurations of FIGS. 5a and 5b.

[0067] As shown in Figures 6a and 6b, the antenna element assembly 300 may include a shielding shield panel 310, a power feed terminal 320 arranged on the front surface of the shielding shield panel 310, and a number of radiating elements 330 capable of being fed by the power feed terminal 320.

[0068] More specifically, the shielding panel 310 may be disposed inside the forward-protruding receiving portion 115 of the front housing 110 of the antenna housing part 100, and may be disposed to shield the front of the plurality of filters 500 by dividing the filter receiving groove 116 in the forward-protruding receiving portion 115 into front and rear portions. The shielding panel 310 may be disposed to divide the plurality of filters 500, thereby preventing signal interference between the plurality of radiating elements 330 of the antenna element assembly 300.

[0069] In addition, the shield panel 310 can function as a fixing element for fixing the multiple radiating elements 330 and the multiple power feed terminals 320 via a mounting holder 340 (to be described later).

[0070] The antenna element assembly 300 may further include a number of mounting holders 340 fixed to the front surface of the shielding panel 310 and mediating the installation of the multiple radiating elements 330 and the multiple power feed terminals 320, as shown in Figures 6a and 6b.

[0071] The mounting holders 340 may be arranged vertically spaced apart from each other so that a single radiating element 330 is coupled to the front of each mounting holder 340, and may be arranged in at least two rows horizontally.

[0072] Here, a position setting protrusion 345 is formed on the rear portion of the mounting holder 340 so as to protrude rearward, and a position setting hole 315 into which the position setting protrusion 345 is inserted is formed on the shield panel 310, and a number of mounting holders 340 can be temporarily fixed to the shield panel 310 by inserting the position setting protrusion 345 of the mounting holder 340 into the position setting hole 315 of the shield panel 310.

[0073] In addition, the mounting holder 340 is formed with a fixing boss 341 penetrating in the front-rear direction, and a fixing hook 331 formed in a hook shape protruding backward on the rear surface of the multiple radiating elements 330 passes through the fixing boss 341, and then the fixing hook 331 of the radiating element 330 is hook-fastened to a fixing hole 311 formed to penetrate the shielding panel 310 in the front-rear direction, thereby fixing the mounting holder 340 and the radiating element 330.

[0074] Meanwhile, the power supply feed terminal 320 coupled to the front portion of the shield panel 310 via the mounting holder 340 may include a filter side terminal 321 electrically connected to the filter 500 through the power supply feeding hole 313 of the shield panel 310, and a radiating element side terminal 322 branching from the filter side terminal 321 to electrically connect signals to a plurality of radiating elements 330, as shown in Figures 6a and 6b.

[0075] That is, a number of power feed terminals 320 capable of receiving power from a number of paths are fixedly installed on one shield panel 310 via a mounting holder 340, and a number of radiating elements 330 may be connected to the radiating element side terminals 322 of the power feed terminals 320, respectively.

[0076] Here, the plurality of radiating elements 330 may be arranged in two rows, five elements each, spaced apart in the vertical direction on the front surface of the shielding panel 310, and may be radiating elements adopted as a patch type capable of implementing at least one polarization frequency of dual polarization.

[0077] Therefore, the radiating element side terminals 322 may be branched from the filter side terminals 321 at one side and the other side of each radiating element 330 and connected to a predetermined portion on the rear side of the radiating element 330 so as to realize one of the dual polarizations described above. At this time, a terminal fixing hole 324 may be formed at the tip of the radiating element side terminal 322, which is fitted and fixed to a terminal fixing protrusion 343 formed on the mounting holder 340.

[0078] Meanwhile, the vertical length and lateral width of the shield panel 310 are set to a size that allows it to be accommodated in the forward-protruding accommodating portion 115, and it is preferable that it is formed long in the vertical direction as described above.

[0079] In this manner, a number of filters 500 are arranged vertically in the filter receiving groove 116 of the forward-protruding accommodating portion 115, and the antenna element assembly 300 is stacked in front of the plurality of filters 500. The system heat generated from the first heat generating element group 411 and the second heat generating element group 412 of the main board 410 is smoothly branched forward and dissipated through the plurality of forward heat dissipation fins 111, 112 corresponding to the left and right sides of the forward-protruding accommodating portion 115, thereby providing the advantage of enabling the construction of a small cell network.

[0080] In addition, in the antenna device 1 according to one embodiment of the present invention, the rear surface of the antenna housing part 100 (i.e., the rear surface of the rear housing part 110) is in surface contact with an indoor or outdoor installation wall W via the installation plate 600, which not only greatly reduces spatial constraints but also provides the advantage that system heat generated inside the antenna housing part 100 can be easily dissipated to the front surface of the front housing 110 without thermal interference.

[0081] An antenna device according to an embodiment of the present invention has been described in detail above with reference to the accompanying drawings. However, the embodiment of the present invention is not necessarily limited to the above embodiment, and it is obvious that various modifications and equivalent implementations are possible by those skilled in the art to which the present invention pertains. Therefore, the true scope of the present invention is determined by the claims that follow. [Industrial Applicability]

[0082] The present invention provides an antenna device capable of reducing the restriction of installation space on an indoor or outdoor installation wall surface. [Explanation of symbols]

[0083] 1: Antenna device 100: Antenna housing part 110: Front housing 111: Front heat dissipation fin 113: Screw fastening end 115: Forward protruding storage section 115s: Protruding Containment Space 116: Filter receiving groove 200: Radome 300: Antenna element assembly 310: Shielding panel 320: Power feed terminal 330: Radiating element 400: Circuit board 410: Main board 420: PSU board 500: Filter

Claims

1. an antenna housing part having a number of front heat dissipation fins integrally formed on a front surface thereof; an antenna element assembly disposed on a front surface of the antenna housing portion and exposed forward between the plurality of front heat dissipation fins formed on the left and right sides of the antenna housing portion; A plurality of filters are disposed in a rear portion of the antenna element assembly and in an installation space inside the antenna housing portion; an installation plate whose front surface is fixed to be in surface contact with the rear surface of the antenna housing portion and whose rear surface is installed in surface contact with an installation wall surface, and which mediates the installation of the antenna housing portion.

2. an antenna housing part having a predetermined installation space formed therein and a plurality of front heat dissipation fins protruding from at least one side of a front surface of the antenna housing part; a main board that is stacked in an installation space of the antenna housing, has a predetermined heat generating element mounted on a front surface thereof, and is mounted in thermal contact with the front surface of the antenna housing having the plurality of front heat dissipation fins; A layered layer is formed in front of the main board, and a number of filters are stacked and arranged in a central portion except for a portion where the number of front heat dissipation fins are formed; an antenna element assembly including a number of radiating elements stacked in front of the number of filters; an installation plate that is fixed so as to be in surface contact with the rear surface of the antenna housing portion and mediates surface-contact installation on an installation wall surface that is arranged perpendicular to the surface of the antenna housing portion.

3. an antenna housing part having a predetermined installation space formed therein and a number of front heat dissipation fins protruding forward from left and right sides from a center of a front part so as to divide the space into two parts; a main board that is stacked in an installation space of the antenna housing, has a predetermined heat generating element mounted on a front surface thereof, and is mounted in thermal contact with an inner surface of the antenna housing having the plurality of front heat dissipation fins; A layered layer is formed in front of the main board, and a number of filters are stacked and arranged in a central portion except for a portion where the number of front heat dissipation fins are formed; an antenna element assembly including a plurality of radiating elements stacked on a front surface of the antenna housing portion corresponding to a front portion of the plurality of filters; an installation plate that is fixed so as to be in surface contact with the rear surface of the antenna housing portion and mediates surface-contact installation on an installation wall surface that is arranged perpendicular to the surface of the antenna housing portion.

4. The antenna housing part comprises: a front housing having a frame end portion protruding forward by a forward protruding height of the front heat dissipation fins and having a forward protruding receiving portion formed therein to receive the front filters and the front antenna element assemblies; The antenna device according to claim 3 , further comprising: a rear housing disposed to cover the open rear surface of the front housing and in surface contact with the front surface of the installation plate.

5. 5. The antenna apparatus according to claim 4, further comprising a radome coupled to the frame end portion which is a front end of the forwardly protruding receiving portion of the front housing.

6. The multiple antenna assemblies include 5. The antenna device according to claim 4, further comprising a shield panel disposed inside the forward-protruding housing portion so as to shield front faces of the multiple filters housed in the forward-protruding housing portion.

7. The forward protruding accommodating portion is 5. The antenna device according to claim 4, wherein the front heat dissipation fins are formed at a center between the plurality of front heat dissipation fins provided at the two locations and are elongated in the vertical direction.

8. The antenna device according to claim 4 , wherein the front heat dissipation fins are formed to be elongated vertically in a vertical direction and spaced a predetermined distance apart from adjacent front heat dissipation fins in a horizontal direction.

9. The mounting plate has at least one screw fastening hole formed therein; The antenna device according to claim 4 , wherein the frame of the front housing has screw fastening ends formed at positions corresponding to the screw fastening holes for fastening assembly screws.

10. The antenna device described in claim 9, wherein the screw fastening end has a screw engagement groove formed in a downwardly opening "U" shape that engages with the forward-protruding head in the direction of gravity after the installation plate is fixed so that the rear surface is in surface contact with the installation wall surface by the assembly screw.

11. 4. The antenna device according to claim 1, wherein the mounting plate is formed in a vertical panel shape that is in surface contact with the mounting wall and is made of a heat conductive material.

12. The antenna device according to claim 4 , wherein the heat generating element mounted on the main board is mounted such that a front surface thereof is in surface thermal contact with a rear surface of the front housing immediately behind the plurality of front heat dissipation fins.

13. The heat generating elements mounted on the main board include a first group of heat generating elements arranged immediately behind a left heat dissipation fin formed on a left side of the plurality of front heat dissipation fins, and a second group of heat generating elements arranged immediately behind a right heat dissipation fin formed on a right side of the plurality of front heat dissipation fins, 13. The antenna device according to claim 12, wherein a number of heat transfer grooves corresponding to forward protruding shapes of the first group of heat generating elements and the second group of heat generating elements are integrally formed on a rear surface of the front housing.

14. A PSU board is arranged below the main board, The antenna device according to claim 12 , wherein a front surface of a PSU-related element mounted on the PSU board is disposed so as to be in intimate contact with a rear surface of the front housing.

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