Antenna device

Abstract

This provides an advantage in that the antenna device can reduce spatial restrictions on the wall on which it is installed. [Solution] The antenna device includes an antenna housing section including a front housing made of a thermally conductive material and formed in a box-like shape with an open rear portion, and a rear housing cover that shields the open rear portion of the front housing and forms a predetermined installation space inside, a main board and a PSU board that are stacked in the installation space of the antenna housing section and have a predetermined heat-generating element mounted on their front surfaces so that the front surfaces of the predetermined heat-generating element are in thermal contact with the front inner surface of the installation space of the antenna housing section, and a plurality of filters arranged to form a predetermined layer in the installation space between the rear surfaces of the main board and the PSU board and the rear housing cover.

Description

Technical Field

[0001] The present invention relates to an antenna apparatus, and more particularly, to an antenna apparatus in which a heat dissipation structure is arranged so as to be concentratedly dissipated to the front part of the antenna housing part, and by removing rear heat dissipation fins, it is easy to install on an indoor or outdoor wall surface and a support pole.

Background Art

[0002] Generally, an antenna apparatus includes, in the installation space of an antenna housing part formed with an open front, a main board on which a predetermined heating element is mounted in sequence from the inner surface side of the antenna housing part to the front, a plurality of filters laminated in front of the main board, and an antenna element board (or an antenna element assembly) laminated in front of the plurality of filters.

[0003] Here, a radome for protecting the main board, a plurality of filters, a plurality of antenna elements, etc., laminated and arranged in the installation space of the antenna housing part is provided on the front surface of the antenna housing part.

[0004] Therefore, in the case of an antenna apparatus according to the prior art, due to the provision of the radome, most of the driving heat generated from a predetermined heating element mounted on the main board is provided to be dissipated rearward through a plurality of rear heat dissipation fins provided on the back surface of the antenna housing part.

[0005] However, in such an antenna device according to the prior art, since a plurality of rear heat dissipation fins for dissipating the system driving heat to the rear of the antenna housing portion must be formed at the rear of the antenna housing portion, a separation space for air circulation is required between the rear heat dissipation fins and the installation wall surface, which has a problem of being restricted in product installation due to restrictions such as installation conditions. Further, in such an antenna device according to the prior art, since a plurality of rear heat dissipation fins for dissipating the system driving heat to the rear of the antenna housing portion must be integrally formed to protrude rearward from the antenna housing portion, an installation space of at least the volume occupied by the rear heat dissipation fins is required, which leads to a problem of installation restrictions on the installation wall surface of public facilities such as subways.

[0006] At the same time, even when dissipating the system driving heat of the antenna device to the front of the antenna housing portion, when the radome, which is an essential configuration for protecting the antenna element and the like, is provided, since the heat dissipation area is limited only by the area occupied by the radome, there is a problem that it is very restrictive to enhance the heat dissipation performance.

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made to solve the above technical problems, and an object thereof is to provide an antenna device capable of reducing the restrictions on the installation space for indoor or outdoor installation wall surfaces and support poles.

[0008] At the same time, another object of the present invention is to provide an antenna device that eliminates the radome configuration itself, which is restrictive in existing heat dissipation performance, and enables front heat dissipation also by a configuration of the antenna element assembly.

[0009] The technical problems of the present invention are not limited to the technical problems 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 Problems

[0010] One embodiment of the antenna device according to the present invention includes an antenna housing portion including a front housing made of a heat-conductive material and formed in a box shape with an open rear portion, and a rear housing cover that forms a predetermined installation space inside while shielding the open rear portion of the front housing, a main board and a PSU board that are stacked and arranged in the installation space of the antenna housing portion, and a predetermined heating element is mounted and arranged on the front surface, and the front surface of the predetermined heating element is stacked so as to be in thermal contact with the front inner surface of the installation space of the antenna housing portion, and a plurality of filters arranged to form a predetermined layer between the rear surfaces of the main board and the PSU board and the rear housing cover.

[0011] Here, a plurality of radiation elements capable of realizing beamforming by dual polarization are exposed to the outside air on the front surface of the antenna housing portion, and are arranged to form different layer structures from the main board, the PSU board, and the plurality of filters.

[0012] In addition, on the front surface of the front housing corresponding to the front inner surface of the installation space of the antenna housing portion where the front surface of the predetermined heating element contacts, a plurality of front heat dissipation fins protruding forward by a predetermined length are integrally formed.

[0013] In addition, the antenna housing portion is fixed via a mounting plate provided such that the rear surface of the rear housing cover is parallel to the installation wall surface.

[0014] In addition, among the antenna housing portion, the rear housing cover is formed flat so as to be in surface contact with the mounting plate.

[0015] In addition, the mounting plate is formed in a vertical panel shape that is in surface contact with the installation wall surface, and is made of a heat-conductive material capable of conducting heat transmitted from the rear housing cover.

[0016] Further, the mounting plate is formed with a plurality of fixing grooves for the installation wall surface that penetrate in the front-rear direction. When the mounting plate moves backward, the head of the mounting screw pre-fixed to the installation wall surface penetrates forward and flows in. Then, when the mounting plate moves downward, the body portion of the mounting screw flows in and is locked in the direction of its own weight.

[0017] Further, the antenna housing portion is fixed via a mounting plate provided such that the back surface of the rear housing cover is parallel to the longitudinal direction of the support pole.

[0018] Further, the mounting plate is formed with a plurality of fixing grooves for the support pole, which penetrate in the front-rear direction and are provided at upper and lower intervals so as to horizontally surround the outer peripheral surface of the support pole, and to which a plurality of hose clamp wires are locked and fastened.

[0019] Further, left and right antenna placement steps with their left and right both ends protruding forward and bent are respectively formed on the mounting plate. On the left and right antenna placement steps, "U"-shaped screw fastening grooves with open upper parts are respectively formed. When assembly screws are fastened to the screw fastening holes of the screw fastening steps formed on the left and right edge side surfaces of the front housing among the antenna housing portions, the antenna housing portion is placed and fixed by being inserted and placed in the screw fastening grooves and fastened.

[0020] Further, it further includes an LED module that is coupled to surround the front surface of the antenna housing portion and irradiates predetermined light from both side surfaces. The LED module is fastened by another assembly screw to the remaining screw fastening holes other than the screw fastening holes through which the mounting plate is screw-fastened by the assembly screws.

[0021] In addition, the LED module further includes an LED substrate portion on which a plurality of LED elements arranged vertically and long are mounted inside the left and right side surfaces of the LED module, and an LED guide portion arranged vertically inside the left and right side surfaces of the LED module to prevent the light generated from the LED elements from flowing into the rear side where the antenna housing portion is provided.

[0022] In addition, on the left and right inside the upper and lower end portions of the LED module, there is further provided a detachable guide step formed with a "U"-shaped assembly guide groove opening backward, and on the upper and lower end portions of the front housing of the antenna housing portion, guide screw holes are formed through which guide screws penetrating the detachable guide step are assembled.

[0023] In addition, on the front surface of the front housing of the antenna housing portion, an element mounting portion on which the antenna element assembly including the plurality of radiation elements is placed is provided flat.

[0024] In addition, the element mounting portion is formed by recessing the front surface of the front housing at a predetermined depth backward at a portion where the plurality of front heat dissipation fins are removed, and the edge end portion of the antenna element assembly is formed at a depth deeper than the front ends of the plurality of front heat dissipation fins.

[0025] In addition, the antenna element assembly can include a printed circuit board for radiation elements that is closely bonded to the front surface of the element mounting portion, an antenna patch circuit portion printed on the front surface of the printed circuit board for radiation elements, an antenna assembly cover formed of a plastic resin material and sealing the front surface of the printed circuit board for radiation elements including the antenna patch circuit portion, and a plurality of directors formed of a heat-conductive material, arranged on the front surface of the antenna assembly cover, and electrically connected to the antenna patch circuit portion through a plurality of through holes formed to penetrate the antenna assembly cover back and forth.

Advantages of the Invention

[0026] According to an embodiment of the antenna device according to the present invention, the following various effects can be achieved.

[0027] First, the rear surface of the antenna housing part is closely arranged forward with reference to the mounting plate, and the antenna device can be installed parallel to the front surface of the installation wall surface or the support pole backward with reference to the mounting plate. Therefore, it has the effect of reducing the constraints of the installation space.

[0028] Second, by deleting the existing radome structure itself, which is restrictive in heat dissipation performance, and providing the front heat dissipation enabled by a configuration of the antenna element assembly, it has the effect of maximizing the heat dissipation performance during front heat dissipation even without rear heat dissipation.

Brief Description of the Drawings

[0029]

Figure 1

Figure 2

Figure 3A

Figure 3B

Figure 4

Figure 5

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 8

Figure 9

Figure 10A

Figure 10B

Figure 10C

Figure 11

Figure 12

Figure 13

Figure 14

Mode for Carrying Out the Invention

[0030] Hereinafter, an antenna device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0031] When attaching reference numerals to the components in each drawing, it should be noted that for the same components, as much as possible, the same reference numerals are used even if they are shown on other drawings. Further, when explaining the embodiments of the present invention, if it is determined that a specific explanation regarding such a known configuration or function hinders the understanding of the embodiments of the present invention, the detailed explanation thereof will be omitted.

[0032] In describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. can be used. Such terms are merely for distinguishing the components from other components, and the essence, order, or procedure of the components are not limited by such terms. Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or overly formal sense unless clearly defined in the present application.

[0033] FIG. 1 is a perspective view of various embodiments of an antenna device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a second embodiment among the embodiments of FIG. 1 in a state where an LED module is provided in the front, FIGS. 3A and 3B are exploded perspective views seen from the front and rear of FIG. 2, FIG. 4 is a cutaway perspective view along line A of FIG. 2 and a partial enlarged view thereof, and FIG. 5 is a plan view of FIG. 2.

[0034] As shown in FIGS. 1 to 6, an antenna device 100 according to an embodiment of the present invention includes antenna housing parts 110 and 120 provided with an internal installation space, a main board 220 and a PSU board 210 stacked in the installation space of the antenna housing parts 110 and 120, and a plurality of filters 500 arranged on the installation space so as to form other predetermined layer layers different from the main board 220 and the PSU board 210.

[0035] In the antenna device 100 according to an embodiment of the present invention, as shown in FIGS. 1 to 5, the antenna housing parts 110 and 120 are made of a heat-conductive material, formed in a box shape with an open rear part, having a predetermined installation space formed inside, and a plurality of front heat-radiating fins 111 protruding by a predetermined length on at least one side of the front surface, and an element mounting part 115 on the front surface where a part of the plurality of front heat-radiating fins 111 is removed and on which an antenna element assembly 300 having a plurality of radiating elements is mounted is provided flatly, and a front housing 110 and a rear housing cover 120 provided so as to shield the open rear part of the front housing 110 can be included.

[0036] Here, the main board 220 and the PSU board 210 are stacked and arranged in the installation space 110s of the antenna housing parts 110 and 120, and a predetermined heating element is mounted and arranged on the front surface, and the front surface of the predetermined heating element is stacked and arranged so as to be in thermal contact with the front inner surface of the installation space of the antenna housing parts 110 and 120 (particularly, the front housing 110) provided with the plurality of front heat-radiating fins 111.

[0037] Also, the plurality of filters 500 form a predetermined layer at the rear of the main board 220 and the PSU board 210 and can be electrically connected to the antenna element assembly 300 through between the main board 220 and the PSU board 210.

[0038] Although not shown, in a conventional antenna device, a heating element with a generally large heat generation amount is concentratedly mounted on the back surface of the main board or the PSU board, and by arranging a filter between the front antenna element assembly, most of the heat is provided to be radiated to the rear of the antenna housing part. Also, in general, most of the filters in the installation space are arranged between the rear main board or PSU board and the front antenna element assembly for the shortest electrical signal connection.

[0039] However, in the conventional arrangement structure described above, due to the necessity of installing a radome for protecting the front of the antenna element assembly, which is the most important element in the antenna device, there is a limit in that a concentrated heat dissipation structure for the rear of the antenna housing parts 110 and 120 must inevitably be adopted for the smooth system heat dissipation of internal heat.

[0040] The antenna device 100 according to an embodiment of the present invention is designed and manufactured such that the antenna element assembly 300 is exposed to the outside air in the front and no additional radome is required, so as to solve the above-described conventional problems at once. On the other hand, the arrangement of the filter 500 in the installation space of the antenna housing parts 110 and 120 is also mainly characterized in that the front heat dissipation of the heat generating elements provided on the main board 220 or the PSU board 210 is possible or advantageously arranged and designed.

[0041] For reference, the main board 220 can correspond to a substrate part 400 that forms one layer on the inner surfaces of the antenna housing parts 110 and 120 together with the PSU board 210 described later.

[0042] Here, on the front surface of the front housing 110 among the antenna housing parts 110 and 120, a plurality of front heat dissipation fins 111 are integrally formed with respect to the front housing 110 so as to protrude forward by a predetermined length, and serve to increase the heat transfer surface area of the front surface of the front housing 110 made of a heat conductive material (for example, a metal material).

[0043] Also, among the antenna housing parts 110 and 120, the rear housing cover 120 is arranged to shield the open rear of the front housing 110, is made of a heat-conductive material (e.g., a metal material), and can transfer the heat in the installation space between the front housing 110 and the rear housing cover 120 to the rear. However, it should be distinguished from the front housing 110 in that the rear housing cover 120 is in surface contact with or arranged parallel to the front surface of the mounting plate 600 to be described later, and it does not have a structure like a plurality of front heat dissipation fins. Therefore, it can be understood that the heat transferred through the rear housing cover 120 is limited to be dissipated to the outside only through the mounting plate 600 in surface contact.

[0044] That is, different from the antenna device according to the prior art, the back surface of the rear housing cover 120 is formed to have only a vertical surface in surface contact with the front surface of the mounting plate 600 without rear heat dissipation fins for heat dissipation. However, it is not necessarily the case that the formation of rear heat dissipation fins on the back surface of the rear housing cover 120 is completely excluded. Needless to say, when it is arranged in parallel so as to be separated from the mounting plate 600, additional rear heat dissipation fins can be formed.

[0045] On the other hand, among the antenna devices 100 according to an embodiment of the present invention, the antenna device 100A (see (a) of FIG. 1) realized in the first embodiment and the antenna device 100B (see (b) of FIG. 1) realized in the second embodiment differ in that the main board 220 and the PSU board 210 laminated inside the installation space of the antenna housing parts 110 and 120, and the left-right width or the up-down length are different in embodiments with the optimal shape and size of a plurality of filters 500.

[0046] The usage modes of the antenna device 100A (see Fig. 1(a)) realized in the first embodiment and the antenna device 100B (see Fig. 1(b)) realized in the second embodiment are to be appropriately selected and applied by the operator according to the surrounding environment where they are installed, and their width and longitudinal size should not be restricted. However, after the antenna device 100 according to an embodiment of the present invention is installed, if overall directivity adjustment by tilting adjustment in the front-rear direction and steering adjustment in the left-right direction is required, the vertical length may only be a limiting factor during tilting rotation, and the width length may only be a limiting factor during steering rotation.

[0047] On the other hand, as shown in Figs. 2 to 5, the antenna device 100 according to an embodiment of the present invention can further include an LED module 700 that is coupled so as to surround the front surfaces of the antenna housing parts 110 and 120 and irradiates predetermined light from both side surfaces.

[0048] Here, the LED module 700 is provided such that the mounting plate 600 is fastened by another assembly screw 619L to the remaining screw fastening holes 119 other than the screw fastening hole 119 to which the assembly screw 619 fastens.

[0049] Such an LED module 700 is coupled so as to surround the front surfaces of the antenna housing parts 110 and 120 and is provided so as to penetrate in the vertical direction, so that the antenna element assembly 300 and the plurality of front heat dissipation fins 111 arranged on the front surface of the front housing 110 of the antenna housing parts 110 and 120 and exposed to the outside air are not shielded from the outside air, enabling sufficient heat exchange with the outside air. Of course, it is made of a material like a conventional radome, and can minimize the negative influence in the formation of the radiation beam from the antenna element assembly 300.

[0050] On one hand, as shown in FIGS. 3A and 3B, the LED module 700 further includes an LED substrate portion 750 on which a plurality of LED elements 751 arranged vertically and longitudinally are mounted inside the left and right side surfaces of the LED module 700, and an LED guide portion 760 arranged vertically inside the left and right side surfaces of the LED module 700 to prevent the light generated from the LED elements 751 from flowing into the rear side where the antenna housings 110 and 120 are provided.

[0051] At the same time, a rigidity reinforcement portion 710 for reinforcing the rigidity of the LED module 700 made of a relatively soft material can be coupled inside the left and right side surfaces of the LED module 700.

[0052] The rigidity reinforcement portion 710 can be coupled inside the left and right side surfaces of the LED module 700 by screwing a plurality of fixing screws 619L.

[0053] The light generated from the LED elements 751 of the LED module 700 can play a role in improving the aesthetic sense by slightly exposing forward to the observer (citizen or user).

[0054] In particular, the rigidity reinforcement portion 710 includes uneven steps 711 and 713 formed by protruding inward by a predetermined length toward the left and right side surfaces of the front housing 110 at the upper and lower ends, respectively. The uneven steps 711 and 713 can play a role in stably supporting the LED module 700 by being supported by support steps 113 protruding outward by a predetermined length from the left and right side surfaces of the front housing 110.

[0055] On the other hand, an element mounting portion 115 for accommodating and coupling an antenna element assembly 300 described later is formed flat on the front surface of the front housing 110.

[0056] The element mounting portion 115 has a shape corresponding to the outer shape of the antenna element assembly 300. More specifically, the front surface of the front housing 110 at the portion where a plurality of front heat dissipation fins 111 are removed is recessed backward by a predetermined depth, and the edge portion of the antenna element assembly 300 is formed to a depth where it is housed deeper than the front ends of the plurality of front heat dissipation fins 111.

[0057] On the other hand, a plurality of front heat dissipation fins 111 are formed in plurality on the entire front surface of the front housing 110 excluding the portion where the element mounting portion 115 is formed.

[0058] Thus, in the case of the antenna device 100 according to an embodiment of the present invention, the system heat generated from the heat generating element mounted on the main board 220 is radiated forward using the plurality of front heat dissipation fins 111 protruding forward of the front housing 110 among the antenna housing portions 110 and 120, and there is an advantage that the antenna device 100 can be easily installed even when the installation space with respect to the installation wall surface W or the support pole P is narrow.

[0059] More specifically, the mounting plate 600 is a configuration for mediating the installation of the antenna housing portions 110 and 120 to the installation wall surface W or the support pole P, and is firmly provided on the installation wall surface W or the support pole P in advance using fastening members (not shown).

[0060] At the same time, left and right antenna placement steps 610 protruding forward and bent are formed at both left and right ends of the mounting plate 600, and "U" - shaped screw fastening grooves 615 with open upper portions are formed above and below the left and right antenna placement steps 610 respectively. By the operation of inserting and placing the assembly screws 619 fastened to the left and right edge steps of the front housing 110 among the antenna housing portions 110 and 120 into the screw fastening grooves 615 and fastening them, the antenna housing portions 110 and 120 are placed and fixed.

[0061] Here, the mounting plate 600 is formed in a vertical panel shape that also abuts against the installation wall surface W, and is made of a heat-conductive material (for example, a metal material). At this time, since the back surface of the mounting plate 600 can abut against the installation wall surface W, the space between the back surface of the rear housing cover 120 of the antenna housing parts 110 and 120 and the installation wall surface W is minimized, and the heat transmitted through the vertical surface of the rear housing cover 120 can also be easily transmitted (dissipated) backward by the heat-conductive material. In this case, a heat transfer medium panel (not shown) or the like is provided between the back surface of the rear housing cover 120 and the mounting plate 600.

[0062] On the other hand, on the left and right inside the upper and lower ends of the LED module 700, as shown in FIG. 5, a detachable guide step 770 with a "U"-shaped assembly guide groove 771 that opens backward is further provided.

[0063] At the same time, although not shown, guide screw holes (not shown) through which guide screws 780 penetrate the detachable guide step 770 are further formed at the upper and lower ends of the front housing 110 of the antenna housing parts 110 and 120.

[0064] Here, the guide screw 780 is coupled to the antenna housing parts 110 and 120 side at the upper or lower part of the front housing 110 among the configurations of the antenna housing parts 110 and 120, and is fastened to the guide screw hole exposed through the assembly guide groove 771 during this process, so that the LED module 700 can be provided in the front housing 110.

[0065] For the convenience of coupling the LED module 700 to the front housing 110, the assembler temporarily fastens the guide screw 780 to the guide screw hole in advance before assembling the LED module 700, and then completely fastens the guide screw 780 in place so that the body part of the guide screw 780 inserted through the assembly guide groove 771, thereby coupling the LED module 700.

[0066] Conversely, for the convenience of removing the LED module 700 from the front housing 110, the assembler gently loosens the guide screw 780 without completely separating it, and then can stably separate it by the front-rear direction guide of the body part of the guide screw 780 and the assembly guide groove 771.

[0067] In particular, although not shown, when the power supply terminal for the LED module 700 is detachably connected via the antenna housing parts 110 and 120, after separating a part of the relevant part of the LED module 700 forward instead of completely removing it, by removing the power supply terminal, post-failure of the power supply terminal can be prevented.

[0068] Figures 6A and 6B are exploded perspective views seen from the front and rear of the first embodiment among the embodiments of FIG. 1, Figures 7A and 7B are exploded perspective views seen from the front and rear showing the antenna element assembly among the configurations of FIG. 1, Figure 8 is a front view of the first embodiment among the embodiments of FIG. 1, and Figure 9 is a cross-sectional view (a) and an exploded perspective view (b) taken along line B-B of Figure 8.

[0069] As shown in FIGS. 6A to 7B, the antenna element assembly 300 is accommodated and installed in at least one element placement part 115 formed on the front surface of the front housing 110.

[0070] More specifically, as shown in FIGS. 7A and 7B, the antenna element assembly 300 includes a printed circuit board 320 for a radiating element that is closely coupled to the front surface of the element mounting portion 115, an antenna patch circuit portion 350 printed on the front surface of the printed circuit board 320 for a radiating element, an antenna assembly cover 310 formed of a plastic resin material that seals the front surface of the printed circuit board 320 for a radiating element including the antenna patch circuit portion 350, and a plurality of directors 330 formed of a thermally conductive material, disposed on the front surface of the antenna assembly cover 310, and electrically connected to the antenna patch circuit portion 350 through a plurality of through holes formed to penetrate the antenna assembly cover 310 in the front-rear direction, respectively.

[0071] As shown in FIGS. 7A and 7B, the antenna patch circuit portion 350 is provided to enable dual-polarization beam radiation, and includes a plurality of patch element portions 351a, 351b, 351c that are spaced apart in the vertical longitudinal direction, and a first-side feed line 352 and a second-side feed line 353 that supply electrical signals to the respective patch element portions 351a, 351b, 351c.

[0072] Input terminals 352a, 353a that are electrically connected to either the main board 220 or the PSU board 210 provided in the installation space inside the antenna housing portions 110, 120 can be integrally formed on the first-side feed line 352 and the second-side feed line 353.

[0073] Each of the input terminals 352a, 353a extends and is disposed inside the installation space through a terminal connection hole 237 formed to penetrate the printed circuit board 320 for a radiating element in the front-rear direction.

[0074] Here, as shown in FIG. 7B, the plurality of radiation directors 330 are assembled via assembly screws (not shown) made of a thermally conductive material to a mounting boss 333 formed to protrude rearward in the middle, and are provided such that the assembly screws are in thermal contact with the element mounting portion 115 made of a thermally conductive material. As a result, the system heat generated inside the antenna housing portions 110 and 120 is radiated forward not only through the plurality of front heat dissipation fins 111 of the front housing 110, but also through the radiation director 330 which is a component of the antenna element assembly 300. This can produce the advantage of greatly improving the overall heat dissipation performance.

[0075] The mounting boss 333 of the radiation director 330 is assembled through an assembly screw after being passed through a screw through-hole 313 formed in the antenna assembly cover 310.

[0076] On the other hand, the plurality of filters 500 are generally laminated between the layer formed by the main board 220 and the PSU board 210 and the front antenna element assembly 300. However, in one embodiment of the present invention, the plurality of heat generating elements mounted on the front surfaces of the main board 220 and the PSU board 210 are preferably laminated and arranged behind the layer formed by the main board 220 and the PSU board 210 in such a way that they are in direct surface thermal contact with the inner front surface of the front housing 110.

[0077] Therefore, as shown in FIGS. 6A and 6B, for the plurality of filters 500, it is preferable that the positions of the input ports 515 and the output ports 525 formed in each unit filter are designed to be positions where electrical signals can be easily input from and output to the main board 220 or positions where electrical signal connection with the antenna element assembly 300 is easy.

[0078] Here, the output ports 525 of the plurality of filters 500 pass through the terminal mounting holes 117 formed in the element mounting portion 115 of the front housing 110 among the antenna housings 110 and 120, and are connected to the respective input terminals 352a and 353a via the output port holes 322 of the printed circuit board 320 for the radiating element.

[0079] On the other hand, at the lower part of the main board 220, a PSU board 210 is provided which is arranged so as to form the same layer, and on which a plurality of filters 500 and a PSU element (not shown) for supplying a predetermined power to the heat generating element side of the main board 220 are mounted.

[0080] Here, the plurality of filters 500 can be electrically signal - connected to the antenna element assembly 300 arranged on the front surface of the front housing 110 through the empty space between the main board 220 and the PSU board 210. For this purpose, the front housing 110 is provided with terminal mounting holes 117 penetrating in the front - rear direction, and can be electrically signal - connected via a direct coaxial connector provided in the terminal mounting holes 117.

[0081] On the other hand, the heat generating elements mounted on the main board 220 can be mounted such that the front surface is in surface thermal contact with the back surface corresponding to the rest of the front housing except the element mounting portion 115. The heat generating elements here can include at least one of an FPGA element, a Tx element, and an LNA element.

[0082] FIGS. 10A to 10C are photographs showing various installation examples of the antenna device according to an embodiment of the present invention.

[0083] As shown in FIG. 10A, the antenna device 100 according to an embodiment of the present invention can be easily installed with the antenna housing parts 110 and 120 by previously providing the mounting plate 600 also on the vertical wall surface of an indoor space (Indoor Environment) such as an airport or a subway station, and on the vertical wall surface of an outdoor space (Outdoor Environment) such as an outdoor park or square as shown in FIGS. 10B and 10C. Thus, the advantage of improving the convenience of installation can be achieved.

[0084] Further, in the antenna device 100 according to an embodiment of the present invention, the backs of the antenna housing parts 110 and 120 (that is, the back of the rear housing cover 120) are respectively provided in surface contact with the installation wall surface W indoors or outdoors via the mounting plate 600, which greatly reduces spatial constraints. Moreover, the system heat generated from the inside of the antenna housing parts 110 and 120 can be easily dissipated to the front surface of the front housing 110 without heat interference.

[0085] FIG. 11 is a perspective view (a) showing how the first embodiment among the embodiments of FIG. 1 is provided on the installation wall surface and an exploded perspective view (b) thereof. FIG. 12 is a perspective view (a) showing how the second embodiment among the embodiments of FIG. 1 is provided on the installation wall surface and an exploded perspective view (b) thereof. FIG. 13 is a perspective view (a) showing how a pair of the first embodiment among the embodiments of FIG. 1 is provided on the support poles and an exploded perspective view (b) thereof. FIG. 14 is a perspective view (a) showing how three of the second embodiment among the embodiments of FIG. 1 are provided on the support poles and an exploded perspective view (b) thereof.

[0086] As shown in FIGS. 11 and 12, the antenna devices 100A and 100B according to an embodiment of the present invention are provided on the installation wall surface W with the mounting plate 600 interposed therebetween.

[0087] More specifically, as shown in FIGS. 11 and 12, the mounting plate 600 is formed with through holes in the front-rear direction. When the mounting plate 600 moves backward, after the head of a mounting screw (not shown) pre-fixed to the installation wall surface W penetrates forward and flows in, when the mounting plate 600 moves downward, the body portion of the mounting screw flows in in the direction of its own weight and is locked, and a plurality of fixing grooves 630 for the installation wall surface are formed at multiple locations.

[0088] Here, since the mounting screw generally has a head radius larger than the body portion radius, the fixing groove 630 for the installation wall surface is formed by cutting such that at least a circular cutout portion large enough for the head to flow in is connected to a circular cutout portion smaller than the head radius and larger than the body portion radius.

[0089] The fixing grooves 630 for the installation wall surface are formed at least at three locations (four locations in this embodiment) spaced apart from each other on the flat portion of the mounting plate 600 so as to enable stable placement and fixation with respect to the installation wall surface W. After the heads of the mounting screws pre-fixed to three or four locations on the installation wall surface W penetrate forward, the mounting plate 600 can be moved downward so that the body portions of the mounting screws can be stably placed in the fixing grooves 630 for the installation wall surface.

[0090] In this way, after the mounting plate 600 is stably fixed to the installation wall surface W, as shown in FIGS. 11 and 12, the antenna housing parts 110 and 120 can be fixed by the operation of fastening the assembly screws 619 through the "U"-shaped screw fastening grooves 615 formed at the left and right ends of the mounting plate 600.

[0091] Here, the antenna device 100 according to an embodiment of the present invention can further include an external mounting member 400 provided at the lower ends of the antenna housing parts 110 and 120 for terminal connection with an external cable 100C for supplying an external power source or signal.

[0092] Also, as shown in FIGS. 11 and 12, the antenna device 100 according to an embodiment of the present invention can further include a cable attachment pipe 800 that guides the concealed installation of the external cable 100C with respect to the installation wall surface W, and a cable concealment cover 900 for concealing the external attachment member 400 and the external cable 100C.

[0093] Thus, according to the antenna device 100 according to an embodiment of the present invention, when installing the antenna housing portions 110 and 120 with respect to the installation wall surface W, by concealing the external cable 100C and the external attachment member 400, it is possible to prevent a decrease in the aesthetic appearance due to the external cable 100C and the external attachment member 400 that are externally exposed.

[0094] On the other hand, as shown in FIGS. 13 and 14, in the antenna device 100 according to an embodiment of the present invention, the back surface of the rear housing cover 120 is provided in parallel with respect to the longitudinal direction of the support pole P with an attachment plate 600 interposed therebetween.

[0095] Here, a plurality of fixing grooves 620 for support poles are formed at a plurality of locations on the attachment plate 600, which are formed to penetrate in the front-rear direction and are provided at upper and lower intervals so as to horizontally surround the outer peripheral surface of the support pole P, and a plurality of hose clamp wires 50 are locked and fastened thereto.

[0096] The installation of the antenna housing portions 110 and 120 with respect to the support pole P can be provided at the same height in parallel with respect to the longitudinal direction of the support pole P, as shown in FIG. 13. That is, the two attachment plates 600-1 and 600-2 are provided such that the front surfaces of the front housing 110 in the configurations of the antenna housing portions 110 and 120 face each other in a 180-degree direction with respect to the support pole P as a reference.

[0097] However, it is not necessarily the case that only two antenna devices 100A-1 and 100A-2 are provided on one support pole P. As shown in FIG. 14, it is also possible to provide the front surfaces of the front housings 110 of three antenna devices 100B-1, 100B-2, and 100B-3 so as to face in a 120-degree direction.

[0098] As described above, the antenna device according to an embodiment of the present invention has been described in detail with reference to the attached drawings. However, the embodiments of the present invention are not necessarily limited to the above-described one embodiment, and it goes without saying that various modifications and implementations within an equivalent range can be made by those having ordinary knowledge in the technical field to which the present invention pertains. Therefore, the true scope of the rights of the present invention is defined by the scope of the claims described below.

Industrial Applicability

[0099] The present invention provides an antenna device that reduces the installation space constraints for indoor or outdoor installation wall surfaces and support poles, eliminates the existing radome configuration with limited heat dissipation performance, and enables front heat dissipation even with a configuration of the antenna element assembly.

Explanation of Reference Numerals

[0100] 100: Antenna device 110, 120: Antenna housing part 110: Front housing 111: Front heat dissipation fin 115: Element mounting part 120: Rear housing cover 300: Antenna element assembly 310: Antenna assembly cover 320: Printed circuit board for radiation element 330: Director for radiation 350: Antenna patch circuit part 351a~c: Patch elements 220: Main board 210: PSU board 500: Filter 600: Mounting plate

Claims

1. an antenna housing unit including a front housing made of a thermally conductive material and formed in a box shape with an open rear portion, and a rear housing cover that covers the open rear portion of the front housing and forms a predetermined installation space therein; a main board and a PSU board that are stacked in an installation space of the antenna housing and have predetermined heat generating elements mounted on their front surfaces so that the front surfaces of the predetermined heat generating elements are in thermal contact with a front inner surface of the installation space of the antenna housing; a plurality of filters arranged to form a predetermined layer in an installation space between the rear surfaces of the main board and the PSU board and the rear housing cover, An antenna device in which a plurality of radiating elements capable of realizing beamforming using dual polarization are exposed to the outside air on the front surface of the antenna housing portion, and are arranged so as to form a different layer from the main board, PSU board, and the plurality of filters.

2. 2. The antenna device according to claim 1, wherein a front surface of the front housing corresponding to the front inner surface of the installation space of the antenna housing portion with which the front surface of the specified heat generating element contacts is integrally formed with a plurality of front heat dissipation fins protruding forward by a predetermined length.

3. 2. The antenna device according to claim 1, wherein the antenna housing portion is fixed to a wall surface via a mounting plate provided so that a rear surface of the rear housing cover is provided parallel to the wall surface on which the antenna housing portion is mounted.

4. 4. The antenna device according to claim 3, wherein the rear housing cover of the antenna housing portion is formed flat so as to be in contact with the mounting plate.

5. 4. The antenna device according to claim 3, wherein the mounting plate is formed in a vertical panel shape that faces the installation wall and is made of a thermally conductive material that can conduct heat transferred from the rear housing cover.

6. 4. The antenna device according to claim 3, wherein the mounting plate has a plurality of mounting wall fixing grooves formed therein, the mounting grooves penetrating in the front-to-rear direction, such that when the mounting plate moves rearward, heads of mounting screws pre-fixed to the mounting wall penetrate forward, and after this penetration, when the mounting plate moves downward, the body portions of the mounting screws are engaged in the direction of their own weight.

7. 2. The antenna device according to claim 1, wherein the antenna housing portion is fixed via a mounting plate provided so that a rear surface of the rear housing cover is provided parallel to a longitudinal direction of a support pole.

8. 8. The antenna device according to claim 7, wherein the mounting plate has a plurality of pole fixing grooves formed therein, the grooves penetrating the mounting plate in the front-rear direction and configured to engage and fasten a plurality of hose clamp wires spaced apart from one another above and below so as to surround the outer circumferential surface of the support pole in the horizontal direction.

9. The mounting plate has left and right antenna mounting sections each having left and right ends that protrude forward and are bent, The left and right antenna mounting sections are each formed with a U-shaped screw fastening groove with an open top, 8. The antenna device according to claim 3, wherein when an assembly screw is fastened into a screw fastening hole of a screw fastening step formed in a left and right edge side portion of the front housing of the antenna housing portion, the antenna housing portion is fixed in place by an action of being inserted into and fastened in the screw fastening groove.

10. The antenna further includes an LED module having openings in the vertical direction, coupled to surround a portion of the front surface of the antenna housing portion, and irradiating a predetermined light from both side surfaces, The antenna device according to claim 9 , wherein the LED module is fastened by another assembly screw in a remaining screw fastening hole other than the screw fastening hole to which the mounting plate is screwed by the assembly screw.

11. The LED module includes: an LED substrate portion on which a plurality of LED elements are mounted and vertically arranged on the inside of both left and right side portions of the LED module; The antenna device of claim 10, further comprising an LED guide portion arranged vertically inside both left and right side portions of the LED module to prevent light generated from the LED element from flowing toward a rear side where the antenna housing portion is provided.

12. The LED module further includes a U-shaped assembly guide groove formed on the left and right inner sides of the upper and lower ends thereof, the U-shaped assembly guide groove being open toward the rear. The antenna device according to claim 10, wherein a guide screw hole is formed in an upper end and a lower end of the front housing of the antenna housing portion, and a guide screw is assembled in the guide screw that passes through the attachment / detachment guide step.

13. An antenna device as described in claim 1, wherein the front housing of the antenna housing portion is provided with a flat element mounting portion on the front surface thereof, on which an antenna element assembly having the plurality of radiating elements is placed.

14. The antenna device according to claim 2 , wherein the front housing of the antenna housing portion is provided with a flat element mounting portion on a front surface thereof, the front housing having the plurality of radiating elements being mounted thereon.

15. The antenna device of claim 14, wherein the element mounting portion is formed by recessing a front surface of the front housing from a portion where the plurality of front heat dissipation fins have been removed to a predetermined depth rearward, and the edge portion of the antenna element assembly is formed to a depth that is deeper than the front ends of the plurality of front heat dissipation fins.

16. The antenna element assembly includes: a printed circuit board for a radiating element, which is closely coupled to a front surface of the element mounting portion; an antenna patch circuit portion printed on a front surface of the printed circuit board for the radiating element; an antenna assembly cover formed of a plastic resin material and sealing a front surface of the radiating element printed circuit board including the antenna patch circuit portion; 14. The antenna device of claim 13, further comprising: a plurality of radiation directors formed of a thermally conductive material, disposed on a front surface of the antenna assembly cover, and electrically connected to the antenna patch circuit unit via a plurality of through holes formed to penetrate the antenna assembly cover in the front and rear directions, wherein the antenna patch circuit unit and the radiation directors constitute the radiating element.

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