KR102594881B1 - Antenna apparatus - Google Patents

Abstract

The present invention relates to an antenna device, and in particular, an antenna housing portion formed in the shape of a case with an open front, a board assembly arranged to be in close contact with an internal space formed by the antenna housing portion, and a plurality of antennas arranged on the front of the board assembly. It includes an RF module for use, and the antenna housing portion is manufactured separately into at least three pieces and then coupled to each other to prevent distortion due to thermal stress between the top and bottom due to the difference in heating value of the heating elements mounted on the board assembly, It prevents the antenna housing from being distorted due to thermal stress due to heat imbalance generated from the heating elements, and also provides the advantage of improving the PIMD problem by preventing the movement and clearance of the RF module for the antenna inside.

Description

Antenna device {ANTENNA APPARATUS}

The present invention relates to an antenna device, and more specifically, to an antenna device that can minimize deterioration in PIMD characteristics by manufacturing antenna housing parts that are long in the vertical direction separately and then assembling them, effectively preventing movement of the internal structure. It's about.

Base station antennas, including repeaters used in mobile communication systems, have various shapes and structures, and usually have a structure in which a plurality of radiating elements are appropriately arranged on at least one reflector standing upright in the longitudinal direction.

Recently, research has been actively conducted to satisfy the high-performance requirements for multiple input/output (MIMO)-based antennas while achieving miniaturization, weight reduction, and low-cost structures. In particular, in the case of antenna devices with patch-type radiating elements to implement linear polarization or circular polarization, the radiating elements are usually plated on a dielectric substrate made of plastic or ceramic material and then connected to a PCB (printed circuit board) through soldering. The method is widely used.

1 is an exploded perspective view showing an example of an antenna device according to the prior art.

As shown in FIG. 1, the antenna device 1 according to the prior art has a plurality of radiating elements 35 output in a desired direction to the front side of the antenna housing main body 10 in the beam output direction to facilitate beam forming. Arranged, a radome (50) is mounted on the front end of the antenna housing main body (10) with a plurality of radiating elements (35) interposed thereto for protection from the external environment.

More specifically, the antenna device 1 according to the prior art includes an antenna housing body 10 that is provided in the shape of a thin rectangular enclosure with an open front and a plurality of heat dissipation fins 11 integrally formed on the rear, and an antenna housing. It includes a main board 20 stacked on the rear inside the main body 10 and an antenna board 30 stacked on the front inside the antenna housing main body 10.

On the front of the antenna board 30, patch-type radiating elements or dipole-type radiating elements 35 are mounted, and on the front of the antenna housing main body 10, radiating elements ( A radome 50 may be installed to ensure smooth radiation from 35).

However, in an example (1) of an antenna device according to the prior art, various digital elements (FPGA elements, etc.) and analog amplification elements (PA elements, LNA elements, etc.) are centrally mounted on the main board 20, thereby forming the antenna housing main body. It has a structure that radiates heat to the rear of (10).

Here, among the analog amplifier elements, the low-noise amplifier (LNA) element generates little heat and is mounted together on the main board 20, thereby increasing the density of installation distribution of other heat-generating elements on the main board. There is a problem with direct performance degradation due to heat generation from other heating elements.

In addition, general antenna devices have a passive intermodulation distortion (PIMD) problem. The PIMD problem is a spurious signal generated by the nonlinear characteristics of passive elements, which affects the signal-to-noise characteristics on the communication path. This refers to a phenomenon that deteriorates communication quality.

In a distributed antenna system (DAS: Distributed Antenna System), for example, a distributed antenna system using time domain duplexing (TDD), the PIMD characteristics are maintained above a certain level of quality during production, but in industrial sites, the antenna of remote equipment is used. PIMD problems may occur due to passive elements used in the distribution network from the port rear end to the final antenna.

In particular, when the structure is designed to modularly mount internal components such as antenna elements, and each module is not stably fixed, the PIMD problem occurs more significantly than in the case of integrated mounting.

Furthermore, this PIMD problem is caused by the fact that the antenna housing body 10 is formed to be long up and down, and when thermal imbalance occurs due to a heating element mounted on the main board 20, the antenna housing body 10 may have a fine damage due to thermal stress. Distortion may occur, and this may frequently occur due to destabilization of each component arranged in the internal space of the antenna housing main body 10.

The present invention was conceived to solve the above-mentioned technical problems, and its purpose is to provide an antenna device that can stably fix and support an RF module for an antenna manufactured in a modular unit to enable maintenance of PIMD characteristics. .

In addition, the present invention modularizes the radiating element, the left and right filter parts, and the amplifying element to be manufactured and assembled in module units on at least one of the front, left and right sides, and upper and lower surfaces of the RF filter body, thereby increasing the productivity of the product. Another purpose is to provide an antenna device that can improve assemblyability.

Another object of the present invention is to provide an antenna device that can improve the PIMD problem by relieving thermal stress by manufacturing an antenna housing part that substantially performs a heat dissipation function separately into at least three parts and then combining them to be waterproofed. Do it as

In addition, another purpose of the present invention is to provide an antenna device capable of thermal dissipation by separating the amplifier board on which an LNA element with a relatively small heat generation amount among the heat generating elements is mounted from the main board and combining it with the unit RF filter body. do.

The technical problems of the present invention are not limited to the problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

One embodiment of the RF module for an antenna according to the present invention includes an antenna housing part formed in the shape of a case with an open front, a board assembly arranged to be in close contact with an internal space formed by the antenna housing part, and an antenna housing arranged on the front of the board assembly. It includes a plurality of RF modules for antennas, and the antenna housing portion is manufactured separately into at least three pieces to prevent distortion due to thermal stress between the top and bottom due to differences in heat generation of heating elements mounted on the board assembly. are combined.

Here, the length of the vertical side of the antenna housing may be formed to be at least a predetermined ratio longer than the length of the horizontal side.

In addition, the antenna housing portion includes a center heat sink panel that forms the exterior of the rear middle portion of the antenna device, an upper heat sink panel that is coupled to the upper part of the center heat sink panel to form the exterior of the upper rear portion of the antenna device, and the It includes a lower heat sink panel coupled to the lower part of the center heat sink panel to form an exterior of the lower rear portion of the antenna device, wherein the center heat sink panel, the upper heat sink panel, and the lower heat sink panel each have a vertical side The length may be at least longer than the length of the street side.

In addition, an upper coupling flange and a lower coupling flange are provided at the upper and lower ends of the center heat sink panel, respectively, and are formed with a plurality of screw through holes for screw assembly of the upper heat sink panel and the lower heat sink panel, The upper coupling flange and the lower coupling flange of the center heat sink panel may be coupled to each other using a plurality of assembly screws while abutting the lower rear portion of the upper heat sink panel and the upper rear upper portion of the lower heat sink panel, respectively.

In addition, the upper coupling flange and the lower coupling flange of the center heat sink panel are arranged to overlap the rear lower portion of the upper heat sink panel and the rear upper portion of the lower heat sink panel, respectively, in the front-to-back direction, and are relatively positioned at the upper heat sink panel. It may be located ahead of the lower rear portion of the panel and the upper rear portion of the lower heat sink panel.

Additionally, the upper coupling flange and the lower coupling flange of the center heat sink panel may be recessed and disposed inside the rear lower portion of the upper heat sink panel and the inner upper rear portion of the lower heat sink panel, respectively.

Additionally, the joint portion between the center heat sink panel and the upper heat sink panel and the joint portion between the center heat sink panel and the lower heat sink panel may be waterproofed.

In addition, the RF module for the plurality of antennas has a plurality of unit RF filter bodies in the up and down vertical direction (hereinafter referred to as 'V-direction') and the left and right horizontal direction (hereinafter referred to as 'H-direction'). ) and may be arranged side by side in several rows or several columns, and may further include a plurality of fixing members that fix the antenna RF module to the antenna housing portion.

In addition, the plurality of fixing members include a horizontal fixing bar that provides module fixing screw holes to which the plurality of unit RF filter bodies are fixed by screw coupling, and extends rearward from the horizontal fixing bar so that the rear end is connected to the antenna housing portion or It may include a plurality of fixing legs fixed to the front of the board assembly.

In addition, one fixing leg and the other fixing leg formed at both ends of the plurality of fixing legs are screw-coupled to a corner mounting block provided at an inner corner of the antenna housing, and the one fixing leg of the plurality of fixing legs The center fixing leg formed between the and the other fixing leg may be fixed to a board mounting block provided on the front of the board assembly through a screw coupling.

In addition, the plurality of antenna RF modules include the unit RF filter body, a plurality of radiating element modules provided to protrude in front of the unit RF filter body, and an area larger than the front surface of the unit RF filter body. It is integrally formed at the front end of the RF filter body and includes a reflector panel that reflects radio waves radiated from the plurality of radiating element modules forward, and the plurality of antenna RF modules penetrate the reflector panel from front to back. The filter fixing screw may be fastened to the module fixing screw hole of the horizontal fixing bar provided on the rear side of the reflector panel.

In addition, the plurality of antenna RF modules include an amplifying element portion provided on one of the upper and lower surfaces of the unit RF filter body, which is the front and rear thick portion, and including an LNA substrate portion on which at least one analog amplification element is mounted, and the unit. It is provided on the rear part of the RF filter body and further includes a filter connecting part electrically connected to the board assembly, and the male socket part and the filter connecting part formed on the LNA substrate part screw the unit RF filter body to the horizontal fixing bar. When fixed through fastening, the female socket portion and the pin coupling portion provided on the front of the board assembly can be connected at the same time.

In addition, the antenna housing unit is coupled to front ends of the center heat sink panel, the upper heat sink panel, and the lower heat sink panel, respectively, and includes four side housing panels that form the left and right and upper and lower side exteriors of the antenna device. The plurality of fixing members further include horizontal fixing bars whose both ends are fixed to the inner surfaces of the left housing panel and the right housing panel respectively forming the left and right exteriors of the antenna device among the four side housing panels. It can be included.

In addition, it further includes a radome panel coupled to the front of the antenna housing to shield the open front of the antenna housing, and a plurality of supports protruding rearwardly to support the front end of the horizontal fixing bar on the back of the radome panel. A boss can be formed.

In addition, a plurality of rear heat dissipation fins are provided on each rear surface of the center heat sink panel, the upper heat sink panel, and the lower heat sink panel to increase the heat dissipation surface area of the heat generated from the heat generating elements in the internal space, At least some of the plurality of rear fins may be manufactured separately and coupled to the coupling heat sink rib integrally formed on the rear portion of each heat sink panel.

Additionally, the four side housing panels and the radome panel may be made of the same material.

Additionally, the plurality of fixing members may be supported by the radome panel with a buffer portion made of silicone rubber interposed between the rear surface of the radome panel.

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

First, by manufacturing at least two or more antenna housing parts separately and then assembling them, the PIMD problem of the connection part of the RF module due to distortion of the existing antenna housing part formed long in the vertical direction is solved by fixing the RF module in the correct position using a fixing member. It has the effect of improving by firmly connecting and maintaining that connection.

Second, an RF module is manufactured and assembled with the filter unit, radiating element unit, and amplifier unit as one module, but a fixing member that mediates the assembly of the RF module is further provided to improve the general PIMD problem of the antenna device. have

Third, it has the effect of improving the productivity of the dual-band filter by providing a left filter unit and a right filter unit capable of performing mutually independent frequency filtering on the left and right sides of the unit RF filter body, respectively.

Fourth, among the heating elements of the antenna device, the LNA element on the receiving signal path, which generates relatively little heat and does not affect the overall system, is arranged separately from the main board, thereby improving overall heat dissipation performance. have

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is an exploded perspective view showing an example of an antenna device according to the prior art;
Figure 2 is a perspective view showing an antenna device according to an embodiment of the present invention;
Figures 3a and 3b are exploded perspective views of the front and rear parts of the overall configuration of Figure 2;
FIGS. 4A and 4B are front and rear exploded perspective views for explaining the installation process for the board assembly of the antenna RF module and the detailed configuration of the antenna housing in the configuration of FIGS. 3A and 3B,
Figure 5 is a perspective view showing the antenna housing portion according to an embodiment of the present invention;
Figures 6a and 6b are exploded perspective views of the front and rear parts showing the antenna housing of Figure 5;
Figure 7 is an exploded perspective view for explaining the installation process of the RF module for the antenna to the fixing member in the configuration of Figures 3a and 3b;
FIGS. 8 and 9 are perspective and exploded perspective views for explaining the installation process of the fixing member for the board assembly and the RF module for the antenna in the configuration of FIGS. 3A and 3B;
Figure 10 is an exploded perspective view showing a modified example of the fixing member in the configuration of Figures 3a and 3b;
Figure 11 is a detailed exploded perspective view of Figure 10;
Figures 12a and 12b are exploded perspective views of the front and rear parts showing a modified example of the antenna housing part of the configuration of Figures 3a and 3b;
Figure 13 is a perspective view showing an RF module for an antenna in the configuration of Figures 3a and 3b;
Figures 14a to 14d are exploded perspective views of the left and right directions of Figure 10;
Figures 15a and 15b are exploded perspective views for explaining the coupling relationship of the radiating element portion to the unit RF filter body in the configuration of the RF module for an antenna;
Figure 16 is a cut-away perspective view and a partial enlarged view showing mutual electrical connection by the third connecting pin terminal shown in Figures 15a and 15b;
Figure 17 is an exploded perspective view to explain the coupling relationship of the amplifying element portion to the unit RF filter body in the configuration of the RF module for an antenna;
Figure 18 is a cut-away perspective view and a partial enlarged view showing mutual electrical connection by the second connecting pin terminal shown in Figure 17;
FIGS. 19A and 19B are front and rear exploded perspective views and partial enlarged views for explaining the mutual electrical connection to the board assembly by the first connecting pin terminal and the LNA substrate shown in FIGS. 15A and 15B;
Figure 20 is a cut-away perspective view and a partial enlarged view showing the connection between the first connecting pin terminal of Figures 19a and 19b and the LNA substrate part.

Hereinafter, an RF module for an antenna and an antenna device including the same according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art 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 technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Figure 2 is a perspective view showing an antenna device according to an embodiment of the present invention, Figures 3A and 3B are exploded perspective views of the front and rear parts of the overall configuration of Figure 2, and Figures 4A and 4B are Figures 3A and 3B. This is an exploded perspective view of the front and rear parts to explain the installation process for the board assembly of the antenna RF module.

As shown in FIGS. 2 to 4B, the antenna device 100 according to an embodiment of the present invention includes an antenna housing portion 110 that forms the left, right, and rear exterior surfaces of the antenna device 100, and an antenna device. Internal parts (main board 120 to be described later) are provided to form the front exterior of 100 and to shield the open front of the antenna housing 110 and are provided in the internal space 110S of the antenna housing 110. ) and a radome panel 300 that protects the board assembly and the antenna RF module 200) from the outside.

In addition, the antenna device 100 according to an embodiment of the present invention is a board assembly (reference numeral 120, 130, 140 and 150) may further be included.

The board assembly includes a pair of main boards 120 on which various electrical components are mounted on the front or back, arranged at a predetermined distance apart in the vertical direction, and disposed on the upper side of the main board 120 to control power supply. It may include a PSU board part 130, a middle board part 140 provided between a pair of main boards 120, and a surge board part 150 below the main board 120. The middle substrate unit 140 may be an RFIC substrate on which RFIC components are mounted according to manufacturing specifications, or may be a beamer substrate on which a beamer is mounted.

In addition, in one embodiment of the present invention, an antenna RF module (Radio Frequency Module) 200 (hereinafter abbreviated as 'RF module') is stacked on the front of the board assembly including the main board 120. More may be included.

Although not shown, the antenna housing portion 110 may serve to mediate coupling to a support pole provided for installation of the antenna device 100.

This antenna housing portion 110 is made of a metal material with excellent thermal conductivity so that heat dissipation due to heat conduction is advantageous as a whole, and has a rectangular enclosure shape with a thickness in the front and rear directions sufficient to accommodate the front end of the RF module 200, which will be described later. can be formed.

Meanwhile, the inner surface of the antenna housing portion 110 is a middle board portion, such as digital elements (FPGA elements, etc.) mounted on the rear of the main board 120 and/or PSU elements mounted on the rear of the PSU board portion 130. It may be formed in a shape that matches the external protruding shape of the RFIC component or beamer mounted on the rear of the 140 and the surge component elements mounted on the rear of the surge substrate unit 150. This is to maximize heat dissipation performance by maximizing the thermal contact area with the back surfaces of the main board 120, the PSU board unit 130, the middle board part 140, and the surge board part 150.

In addition, on the front of the main board 120, a male socket portion 235 formed on the LNA substrate portion 231 of the amplifying element portion 230 among the components of the antenna RF module 200 manufactured in module units to be described later is provided. A female socket portion 127 may be provided to be coupled by a socket pin coupling method.

In addition, on the front of the main board 120, the first connecting pin terminal 281 of the left filter unit 240A and the right filter unit 240B, which will be described later among the components of the antenna RF module 200, is provided using a terminal pin coupling method. A pin coupling portion 125 may be provided for coupling.

Hereinafter, the antenna device 100 according to an embodiment of the present invention, like the first connecting pin terminal 281, includes a second connecting pin terminal 282 and a third connecting pin terminal 282 for electrical connection between the two components (members). A pin terminal 283 may be further provided (see FIGS. 12A to 12D), and for convenience of explanation, the first connecting pin terminal to the third connecting pin terminal 281 to 283 are collectively referred to as a filter connecting portion. I decided to do it.

On both left and right sides of the antenna housing unit 110, as shown in FIGS. 2 to 4B, a worker in the field transports the antenna device 100 according to an embodiment of the present invention or holds it against a support pole (not shown). A handle portion 190 that can be gripped may be further installed to facilitate manual installation.

In addition, various external mounting members 400 for cable connection with a base station device (not shown) and coordination of internal components may be assembled through the outside of the lower end of the antenna housing portion 110. The outer mounting member 400 is provided in the form of at least one optical cable connection terminal (socket), and a connection terminal of a coaxial cable (not shown) may be connected to each connection terminal.

Here, as shown in FIGS. 2 to 4B, the antenna housing portion 110 may be formed to be long in the vertical direction, with the length of the vertical side being at least three times longer than the length of the horizontal side.

In order to secure the recently required high-capacity transmission channel, a larger number of antenna radiating elements are centrally arranged, and the antenna is formed long in the vertical direction to minimize interference with surrounding antenna devices when setting direction through tilting and steering. This is the result of adopting the optimal shape for this purpose.

However, when the antenna housing portion 110 is formed to be long in the vertical direction like this, the main board 120, PSU board 130, RFIC board 140, and surge substrate portion 150 arranged in the internal space 110S There is no problem if the distribution of heat generated from each element (heating elements, such as FPGA element, PA (Tx_amp) element, etc.) is uniform, but due to the unbalanced heat generation distribution of each heating element, the antenna housing unit (110) ) may cause the antenna housing portion 110 to be slightly distorted due to thermal stress applied to the antenna housing 110, and such distortion may lead to a PIMD problem of the antenna device 100.

In order to prevent this, in the antenna device 100 according to an embodiment of the present invention, as shown in FIGS. 4A and 4B, the antenna housing portion 110 is connected to the heating elements mounted on the main board 120, etc. To prevent distortion due to thermal stress between the top and bottom due to the difference in heating value, it can be manufactured separately into at least three pieces and then combined together.

Figure 5 is a perspective view showing an antenna housing according to an embodiment of the present invention, and Figures 6a and 6b are exploded perspective views of the front and rear parts showing the antenna housing of Figure 5.

More specifically, the antenna housing portion 110 includes a center heat sink panel 110A that forms the exterior of the rear middle portion of the antenna device 100, and a center heat sink panel 110A, as shown in FIG. 5. The upper heat sink panel (110B) is coupled to the upper part of the antenna device 100 to form the outer appearance of the upper rear portion of the antenna device 100, and the upper heat sink panel 110B is coupled to the lower portion of the center heat sink panel 110B to form the outer appearance of the lower rear portion of the antenna device 100. It may include a lower heat sink panel 110C.

Here, as described above, the antenna housing portion 110 includes a center heat sink panel 110A, an upper heat sink panel 110B, and Each of the lower heat sink panels 110C is characterized in that the length of the vertical side is at least longer than the length of the horizontal side even when the antenna housing portion 110 is divided into three components. However, the scope of rights of the antenna device 100 according to an embodiment of the present invention is not limited to this, and to the extent that the length of each vertical side is formed at least longer than the length of the horizontal side, the antenna housing portion 110 is divided into two configurations. It would be natural to include separate cases.

Meanwhile, at the top and bottom of the center heat sink panel 110A, there are a plurality of screw through holes 118A-1a and 118A-2a for screw assembly with the upper heat sink panel 110B and the lower heat sink panel 110C, respectively. ) is provided with an upper coupling flange (118A-1) and a lower coupling flange (118A-2), and the upper coupling flange (118A-1) and lower coupling flange (118A-2) of the center heat sink panel (110A) are provided. A plurality of assembly screws 119 are in contact with the upper corresponding flange 118B formed on the lower rear portion of the upper heat sink panel 110B and the lower corresponding flange 118C formed on the upper rear portion of the lower heat sink panel 110C. After penetrating the plurality of screw through holes (118A-1a, 118A-2a), the screw is fastened to the plurality of screw fastening holes (118Ba, 118Ca) formed in the upper corresponding flange (118B) and the lower corresponding flange (118C), thereby mutually can be combined

Here, the upper coupling flange 118A-1 and the lower coupling flange 118A-2 of the center heat sink panel 110A are respectively connected to the lower rear portion of the upper heat sink panel 110B and the rear lower portion of the lower heat sink panel 110C. It is disposed to overlap the upper end in the front-to-back direction, and is preferably provided so that it can be relatively positioned forward of the rear lower end of the upper heat sink panel 110B and the rear upper end of the lower heat sink panel 110C.

In this case, the upper coupling flange 118A-1 and the lower coupling flange 118A-2 of the center heat sink panel 110A are located inside and inside the upper corresponding flange 118B of the lower rear portion of the upper heat sink panel 110B, respectively. It may be recessed and disposed inside the lower corresponding flange 118C of the upper end of the lower heat sink panel 110C.

The upper coupling flange (118A-1) and the lower coupling flange (118A-2) of the center heat sink panel (110A) each have a plurality of housing fixing screw penetration holes (118A-1a, 118A-2a) are formed to be spaced apart in the left and right directions, and housing fixing screws 119 are provided on the upper corresponding flange 118B of the upper heat sink panel 110B and the lower corresponding flange 118C of the lower heat sink panel 110C. Housing fixing screw fastening holes 118Ba and 118Ca may be formed.

In addition, an upper side wall fixing block 115A-1 and a lower side wall fixing block 115A-2 are formed on the left and right side walls of the upper and lower parts of the center heat sink panel 110A, respectively, and an upper side wall fixing block 115A-1 ) and a lower side wall fixing block 115A-2, each of which may have a plurality of side wall fixing screws 116 penetrating side wall fixing screw through holes 115A-1a and 115A-2a.

In addition, the upper side wall fixing block 115A-1 and the lower side wall fixing block 115A-2 of the center heat sink panel 110A are installed on the lower or upper left and right side walls of the upper heat sink panel 110B and lower heat sink panel 110C. ), an upper corresponding side wall fixing block 115B and a lower corresponding side wall fixing block 115C are formed, respectively, and side wall fixing screws 116 are also provided in the upper corresponding side wall fixing block 115B and the lower corresponding side wall fixing block 115C. A plurality of side wall fixing screw fastening holes 115Ba and 115Ca may be formed.

That is, the antenna housing unit 110 comprised of three heat sink panels 110A to 110C can be firmly screw-assembled at the rear end and the left and right side walls, respectively, to form a single antenna housing unit 110.

Therefore, even when the heat generated in the internal space 110S of the antenna housing 110 is uneven, heat is dissipated from each of the three divided antenna housing 110, so thermal stress can be minimized. Distortion of the housing portion 110 can be prevented, thereby improving the PIMD problem.

At this time, since the antenna housing part 110 is a part exposed to the outside, in order to prevent leakage (intrusion) of foreign substances such as rainwater into the internal space 110S, the center heat sink panel 110A and the upper heat sink panel ( It is preferable that the coupling portion of (110B) and the coupling portion of the center heat sink panel (110A) and the lower heat sink panel (110C) are waterproofed.

That is, referring to FIGS. 2 to 6B, a plurality of rear heat dissipation fins 111 may be integrally formed on the rear surface of the antenna housing unit 110 to have a predetermined pattern shape. Here, as a board assembly installed in the internal space 110S of the antenna housing 110, each heating element of the main board 120, PSU board 130, RFIC substrate 140, and surge substrate 150 The heat generated from can be directly dissipated to the rear through the plurality of rear heat dissipation fins 111.

As shown in FIGS. 2 to 6B, the plurality of rear heat dissipation fins 111 are arranged to be inclined upward toward the left and right ends based on the center portion of the left and right widths, and radiate heat toward the rear of the antenna housing portion 110. The heat can be designed to be dispersed more quickly by forming an upward airflow distributed in the left and right directions, respectively. However, the shape of the plurality of rear heat dissipation fins 111 is not necessarily limited thereto. For example, although not shown in the drawing, if a blower fan module (not shown) is further provided on the rear side of the antenna housing unit 110 to facilitate the flow of outside air, the heat radiated by the blower fan module is more To ensure rapid discharge, the plurality of rear heat dissipation fins 111 may be formed parallel to the left and right ends of the centrally disposed blower fan module, respectively.

Meanwhile, the antenna device 100 according to an embodiment of the present invention is installed on the front of the antenna housing 110 to shield the open front of the antenna housing 110, as shown in FIGS. 2 to 4B. It may further include a combined radome panel 300.

The radome panel 300 is coupled to the front end of the antenna housing portion 110, and the hook coupling portion 310 formed along the edge of the radome panel 300 is attached to the front engaging rib (see reference numeral 110) of the antenna housing portion 110. It can be hooked to the side (not shown).

Here, a waterproof gasket ring 180 made of rubber may be interposed between the front edge of the antenna housing portion 110 and the radome panel 300, and the hook coupling to the antenna housing portion 110 of the radome panel 300 The waterproof gasket ring 180 can perform a sealing function while being elastically deformed by the coupling force provided during the installation.

Meanwhile, the antenna device 100 according to an embodiment of the present invention, as shown in FIGS. 3A to 4B, when installing the RF module 200 for an antenna, the unit filter body 210 of each RF module 200 ) may further include a plurality of fixing members 280 for fixing the.

FIG. 7 is an exploded perspective view for explaining the installation process of the RF module for the antenna to the fixing member in FIGS. 3A and 3B, and FIGS. 8 and 9 are exploded perspective views showing the fixing member for the board assembly in the configuration of FIGS. 3A and 3B. and a perspective view and an exploded perspective view to explain the installation process of the RF module for the antenna.

As shown in FIGS. 4A and 4B, the plurality of fixing members 280 include an upper fixing part 281U provided at the uppermost part of the inner space 110S of the antenna housing part 110, and an antenna housing part 110. ) is fixed to the inner space (110S) of the antenna housing portion (110) between the down fixing part (281D) provided at the lowermost part of the inner space (110S), the upper fixing part (281U), and the down fixing part (281D). It may include at least one center fixing part (281C).

The upper fixing part 281U and the down fixing part 281D are arranged horizontally one by one adjacent to the top and bottom of the antenna housing part 110, respectively, and the center fixing part 281C is fixed to the upper fixing part 281U and the down fixing part 281C. Between the fixing parts 281D, three can be arranged horizontally so that they are spaced apart vertically.

As referred to in FIGS. 7 to 9, the plurality of such fixing members 280 are, in common, the unit RF filter body 210 of the antenna RF module 200, which will be described later, is fixed by a screw coupling method. A horizontal fixing bar 282 that provides a plurality of filter fixing screw holes 286, and a rear end extending rearward from the horizontal fixing bar 282, is connected to the antenna housing part 110 or the board assembly (particularly, the main board 120). ) or a plurality of fixing legs 283 fixed to the front of the middle substrate portion 140).

Here, as shown in FIG. 9, a mounting bar 284 is formed at each rear end of the fixing leg 283 to mediate screw coupling to the board assembly, and a plurality of fixing members are assembled on the mounting bar 284. An assembly hole 284a may be formed for screw assembly using the screw 285.

Meanwhile, the fixing leg 283 may be formed to extend rearward from the horizontal fixing bar 282 in three places. More specifically, one fixing leg and the other fixing leg are located at both ends of the horizontal fixing bar 282. Each may extend rearward, and the center fixing leg may extend rearward from the center of the horizontal fixing bar 282.

Here, one fixing leg and the other fixing leg extending rearward from both ends of the horizontal fixing bar 282 are attached to the corner mounting block 114 provided at the inner corner of the antenna housing portion 110 with the fixing member assembly screw 285. ) can be assembled through the medium.

In addition, the center fixing leg extending rearward from the center of the horizontal fixing bar 282 is formed on the front of the board mounting fixing block 122 or the middle substrate portion 140 formed on the front of the main board 120 during the board assembly. It can be assembled to the board mounting fixing block 142 via the fixing member assembly screw 285.

During the board assembly, block avoidance portions 144 may be formed on the left and right ends of the main board 120 and the middle substrate portion 140 to avoid interference with the corner mounting block 114.

In this way, the antenna device 100 according to an embodiment of the present invention has a fixed leg 283 extending rearward so that the plurality of fixing members 280 are hardly affected by the side wall part of the antenna housing portion 110. ) by stably fixing it to the inner surface of the antenna housing portion 110, it is possible to more effectively prevent shaking (floating) of the antenna RF module 200 coupled thereto, and the resulting PIMD problem can be further improved. has the advantage of being able to

Meanwhile, in the antenna device 100 according to an embodiment of the present invention, the fixing member 280 is not limited to an embodiment in which the fixing member 280 is necessarily provided with a plurality of fixing legs 283.

FIG. 10 is an exploded perspective view showing a modified example of the fixing member in the configuration of FIGS. 3A and 3B, FIG. 11 is a detailed exploded perspective view of FIG. 10, and FIGS. 12A and 12B are an antenna housing in the configuration of FIGS. 3A and 3B. This is an exploded perspective view of the front and rear parts showing a modified example of the part.

10 to 12B, regardless of the antenna housing portion 110, which is divided into three pieces, four side housing panels are provided in a single form on each side to form an upper, lower, left, and right side appearance. In the case of (110-1 to 110-4), the fixing member 280 is directly connected to the horizontal fixing bar 282 without a fixing leg 283, and both ends of the horizontal fixing bar 282 are formed by four side housing panels ( It may be fixed to the left housing panel (110-1) and the right housing panel (110-2) constituting both sides of (110-1 to 110-4).

More specifically, the four side housing panels 110-1 to 110-4 are the left housing panel 110-1 forming the left side exterior of the antenna device 100, as shown in FIGS. 12A and 12B. ), the right housing panel 110-2 forming the right side exterior of the antenna device 100, the upper housing panel 110-3 forming the upper exterior appearance of the antenna device 100, and the antenna device 100 ) may include a lower housing panel 110-4 that forms the lower exterior of the unit.

The reason for providing the four side housing panels (110-1 to 110-4) separately from the antenna housing unit 110 is that the conventional heating elements generated from the internal space (110S) of the antenna housing unit (110) are Since it must be made of a metal material (a material with excellent thermal conductivity) for efficient rear heat dissipation, when the antenna housing portion 110 is formed to be long in the vertical direction, the weight of the entire antenna device 100 is relatively large. In order to solve this problem of weight increase, as described above, at least the parts forming the side parts (left and right side parts, top and bottom sides) of the antenna housing unit 110 are made of a lightweight non-thermal conductive material rather than a thermally conductive material. This is because it was required to replace it with the four side housing panels (110-1 to 110-4) provided above.

The four side housing panels (110-1 to 110-4) do not need to be formed of the same material as each heat sink panel (110A to 110C) in order to reduce the overall weight of the antenna device 100, and are used as the radome panel described above. It is preferably made of the same material as (300).

Here, the four side housing panels (110-1 to 110-4) may have relatively weak strength when made of the same material as the radome panel 300, so the left housing panel (110-1) and the right housing panel ( Among the fixing members 280 on each inner surface of 110-2), both ends of the horizontal fixing bar 282 are combined to perform a reinforcing function, and firmly fix the RF module 200 for an antenna, which will be described later. can perform its role.

At this time, the fixing member 280 has a plurality of left and right penetrating holes so that both left and right ends penetrate the left and right side walls of the antenna housing unit 110 (i.e., the left housing panel 110-1 and the right housing panel 110-2). After being located in the inner part of the hole 171, a plurality of assembly screws 273 can be fastened to the screw fastening holes 281 formed at both left and right ends by penetrating through the plurality of left and right through holes 171 from the outside. . Among the configurations of the fixing member 280, a plurality of screw fixing holes 281 to which a plurality of assembly screws 273 are fastened may be formed at both left and right ends of the horizontal fixing bar 282, respectively.

Since the plurality of left and right through holes 171 formed in the antenna housing portion 110 and the plurality of assembly screws 273 fastened thereto are exposed to the outside and may spoil the aesthetics, as shown in FIGS. 12A and 12B, It can be shielded using a separate shielding film 275.

In addition, among the fixing members 280, a plurality of module fixing screw holes 283 are formed on the front of the horizontal fixing bar 282 to be spaced apart in the left and right directions, and are assembled in the internal space 110S of the antenna housing part 110. Among the configurations of the RF module 200, a plurality of assembly screws 287 are fastened to the module fixing screw fastening holes 275 formed in the reflector panel 270, which will be described later, so that each RF module 275 can be stably fixed. . The specific configuration and connection method of the RF module 200 will be described in more detail later.

Here, the fixing member 280 is made of a non-conductive material (for example, a plastic resin series) to minimize the influence of PIMD (Passive Intermodulation Distorsion) and the influence on the ground (GND) role of the reflector panel 270, which will be described later. material), and a plurality of assembly screws (not shown) are also preferably selected as a plastic resin-based material.

In addition, the antenna device 100 according to an embodiment of the present invention, although not shown in the drawing, may be further provided with a buffer part 289 made of silicone rubber attached to the front end of the fixing member 280. The buffer units 289 may play a role in alleviating internal shock between components by being respectively seated and installed on the fixing members 280 that secure each unit RF filter body 210.

In this way, it is modularized and manufactured, and as will be described later, the bonding force between the main board 110 and each RF module 200 is that of the male socket portion 235 of the LNA substrate portion 230 and the RF filter body portion 210. It is difficult to maintain the PIMD characteristics in that it relies on the very weak coupling force of the first connecting pin terminal 281, so the PIMD problem can be solved by using the fixing member 280 that firmly fixes and supports each RF module 200. It becomes possible. This will be explained again when each configuration of the RF module 200 is described in detail.

Meanwhile, the antenna device 100 according to an embodiment of the present invention, as shown in FIGS. 2 to 12B, has a front end (or four side housing panels 110-1 to 110-) of the antenna housing portion 110. It is coupled to the front end of 4), and may further include a radome panel 300 that protects the RF module 200, which will be described later, provided in the internal space 110S.

As described above, the radome panel 300 protects a number of components provided in the internal space 110S of the antenna housing 110 from the outside and also secures a number of components when coupled to the antenna housing 110. It may serve to support the member 280 from the front.

Here, the plurality of fixing members 280 may be supported by the radome panel 300 with a buffer portion 289 made of silicone rubber interposed between the rear surface of the radome panel 300.

In addition, the rear portion of the radome panel 300 may be further provided with a plurality of support bosses 320 extending rearward to support at least a portion of the front of the buffer portion 289.

Meanwhile, the antenna device 100 according to an embodiment of the present invention, as shown in FIGS. 12A and 12B, includes an antenna housing portion 110 (i.e., a center heat sink panel 110A) and an upper heat sink panel ( A plurality of rear heat dissipation fins 111 may be provided on the rear surfaces of 110B) and lower heat sink panel 110C) to increase the surface area of heat dissipation of heat generated from heat generating elements in the internal space 110S.

Here, at least a portion (111B) of the plurality of rear heat dissipation fins 111 may be separately removed and coupled to the coupling heat sink rib (111a) integrally formed on the rear portion of each heat sink panel (110A to 110C).

In this way, some (111a) of the plurality of rear heat dissipation fins 111 are formed integrally with each heat sink panel (110A to 110C) in the form of ribs, and some (111b) are manufactured separately to form a heat sink rib (111a) for coupling. The purpose of the coupling is to improve process convenience, and the separately manufactured rear heat dissipation fin (111b) coupled to the coupling heat sink rib (111a) is welded or using thermal epoxy to have a minimum heat resistance. can be combined

Here, among the plurality of rear heat dissipation fins 111, the rear heat dissipation fin 111b, which is separately manufactured and coupled, is a wick that transfers heat while causing a phase change by the heat transferred from the heat sink rib 111a for coupling with refrigerant injected therein. It may be composed of an active-fin with a (wick) structure.

The rear heat dissipation fin 111, which is provided as an active fin with such a wick structure, can greatly improve heat dissipation performance by active heat transfer by the refrigerant in addition to heat transfer by its own thermally conductive material.

In this case, the rear heat dissipation fin 111b provided as an active fin is inclined in the left and right directions from the left and right center portions of the back of the antenna housing portion 110, respectively, as shown in FIGS. 12A and 12B. , the heating elements are arranged to be mounted at a position corresponding to the lower part of the rear heat dissipating fin (111b), and the heat transferred from the heating elements through the lower part of the rear heat dissipating fin (111b) changes the phase of the liquid refrigerant into a gaseous refrigerant. Afterwards, it is moved upward by capillary force and heat can be dissipated to the outside from the upper end of the rear heat dissipation fin (111b).

FIG. 13 is a perspective view showing an RF module for an antenna in the configuration of FIGS. 3A and 3B, and FIGS. 14A to 14D are exploded perspective views of the left and right directions of FIG. 10.

13 to 14D, an embodiment of the RF module 200 for an antenna according to the present invention includes a unit RF filter body 210 arranged on the front of the main board 120, and a unit RF filter body ( A radiating element unit 220 disposed on the front of the unit RF filter body 210 is provided on either the upper or lower surfaces of the unit RF filter body 210, and at least one analog amplification element (not shown) is mounted thereon. An amplifying element unit 230 including an LNA substrate unit 231, and a front end surface of the unit RF filter body 210 are formed to extend wider than the front area of the unit RF filter body 210, and the radiating element unit ( It may include a reflector panel 270 that grounds 220).

Here, a plurality of cavities C1 and C2 are formed on the left and right sides of the unit RF filter body 210, respectively, and a resonator DR is built into each cavity C1 and C2 to filter different frequencies. A left filter unit 240A and a right filter unit 240B may be provided to perform. Hereinafter, the left filter unit 240A and the right filter unit 240B will be described by defining them as located on the left and right sides based on the omni direction.

The left filter unit 240A and the right filter unit 240B are designed as filters for the 2.4G frequency band and 5G frequency band, respectively, and can implement a dual-band antenna using one RF module 200.

Meanwhile, the radiating element unit 220 may be provided to generate at least one polarized wave among dual polarized waves.

More specifically, as shown in FIGS. 13 to 14D, a base panel 221 disposed on the front of the reflector panel 270, and attached to the base panel 221, include a left filter unit 240A and a right filter unit 240A. It may include a power feeding base 223 that is electrically connected to the filter unit 240B and cross-arranged in an 'X' shape, and a radiation director panel 225 provided at the front end of the power feeding base 223. . On the front of the base panel 221, transmission lines 221s of a predetermined pattern connected to the input terminal of each feeding base 223 may be printed in a pattern.

The radiation director panel 225 is formed in an approximately square shape, the power feeding base 223 is positioned to support each corner of the radiation director panel 225 diagonally, and each feeding end is located on the radiation director panel. By being extended and connected to the center of each side of 225, each feed feeding base 223 generates each polarization, thereby implementing dual polarization.

The base panel 221 transfers each transmission signal from the left filter unit 240A and the right filter unit 240B formed on the left and right sides of the unit RF filter body 210 and the reception signal from the radiation director panel 225. They can be electrically connected to each other. The electrical connection mechanism between the base panel 221 and each filter unit 240A and 240B will be described in more detail later.

In the RF module 200 for an antenna according to an embodiment of the present invention, the radiating element unit 220 is described as being limited to one of a patch type and a dipole type, but is not necessarily limited to this, and is an air stream type antenna. It should be noted that this does not exclude application.

Meanwhile, as shown in FIGS. 13 to 14D, the amplifying element unit 230 is an LNA in the substrate installation space 230S provided on either the upper or lower surfaces forming the front and rear thickness portions of the unit RF filter body 210. It may include a substrate portion 231.

At least one LNA element (not shown), which generates relatively little heat among analog amplification elements and serves to amplify a received signal, may be mounted on the LNA substrate unit 231.

In general, an RF module is a collection of analog RF components. For example, the amplification element unit 230 is equipped with analog amplification elements that amplify RF signals. The RF module 200 according to an embodiment of the present invention In this case, only the LNA elements that generate relatively little heat among the analog amplification elements are designed to be separated from the main board 120 and included in the unit RF filter body 210. In addition, the left filter unit 240A and the right filter unit 240B are RF components for frequency filtering the input RF signal to a desired frequency band, and the radiating element unit 220 serves to receive and transmit the RF signal. It can be defined as an RF component that

Here, the LNA substrate unit 231 may be electrically connected to each cavity C1 and C2 of the left filter unit 240A and the right filter unit 240B formed on the left and right sides of the unit RF filter body 210. The electrical connection mechanism between the LNA substrate unit 231 and each filter unit 240A and 240B will be described in more detail later.

The substrate installation space 230S where the LNA substrate unit 231 is installed can be shielded using the amplification unit cover panel 237, and the outer surface of the amplification unit cover panel 237 dissipates heat in the substrate installation space 230S. The amplifier heat sink fin (not shown), which dissipates heat through heat conduction, may be formed integrally. Heat emitted through the heat sink fin of the amplification unit can be dissipated to the outside through the side portion of the antenna housing unit 110.

Meanwhile, a reflector panel 270 may be formed on the front of the unit RF filter body 210, as shown in FIGS. 13 to 14D.

The reflector panel 270 prevents penetration of radio waves (beams) emitted from the radiating element 220 coupled to the front end of the unit RF filter body 210 to the rear side, and also prevents the radiating element 220 from penetrating into the rear side. It can serve as a ground (GND) for .

In addition, at the upper and lower ends of the reflector panel 270, there are module fixing screw fastening holes ( 275) can be formed.

As already described, the fixing member 280 is intended to compensate for the weak coupling force of the unit RF filter body 210 to the main board 120, and in the process of assembling each unit to the antenna housing portion 110, By stably fixing the RF filter body 210 at the rear or front of the reflector panel 270, the PIMD problem caused by the movement or gap of the unit RF filter body 210 can be improved.

FIGS. 15A and 15B are exploded perspective views for explaining the coupling relationship of the radiating element portion to the unit RF filter body in the configuration of the RF module for an antenna, and FIG. 16 is an exploded perspective view of the connection between the third connecting pin terminal shown in FIGS. 15A and 15B. This is a cut-away perspective view and partially enlarged view showing the electrical connection.

The left filter part 240A and the right filter part 240B formed on the left and right sides of the unit RF filter body 210, respectively, are pin coupling parts provided on the front of the main board 120, as shown in FIGS. 15A and 15B. It can be electrically connected via the first connecting pin terminal 281 provided at (125).

More specifically, the rear side of the unit RF filter body 210 is provided with at least one input/output port (not indicated) for transmitting a transmission signal through the left filter unit 240A and the right filter unit 240B. It can be.

Here, at least one input/output port is electrically connected to the main board 120, the left filter unit 240A, and the right filter unit 240B via the first connecting pin terminal 281 among the filter connecting units described above. It becomes possible.

Meanwhile, referring to FIGS. 15A, 15B and 16, the base panel 221 of the radiating element unit 220 includes each transmission signal from the left filter unit 240A and the right filter unit 240B and a radiation director. It can be electrically connected to the third connecting pin terminal 283, which is one of the components of the filter connecting portion, to mediate the transmission of the received signal from the panel 225. The third connecting pin terminal 283 may be coupled to the base panel 221 using a terminal pin coupling method and then soldered to the base panel 221 using a coupling method such as soldering.

FIG. 17 is an exploded perspective view for explaining the coupling relationship of the amplifying element portion to the unit RF filter body in the configuration of the RF module for an antenna, and FIG. 18 is a cutaway view showing mutual electrical connection by the second connecting pin terminal shown in FIG. 17. It is a perspective view and a partially enlarged view, and FIGS. 19A and 19B are exploded perspective views of the front and rear parts for explaining the mutual electrical connection to the board assembly by the first connecting pin terminal and the LNA substrate shown in FIGS. 15A and 15B. and a partially enlarged view, and FIG. 20 is a cut-away perspective view showing the connection between the first connecting pin terminal and the LNA substrate portion of FIGS. 19A and 19B and a partially enlarged view thereof.

As shown in FIGS. 17 and 18, the amplifying element unit 230 includes at least one LNA element on a substrate installation space 230S integrally formed on either the upper or lower surface of the unit RF filter body 210. The LNA substrate unit 231 on which they are mounted may be accommodated and arranged.

The substrate installation space 230S is formed with a through slit 239 penetrating through the rear side of the unit RF filter body 210, and a male socket portion 235 formed on the LNA substrate portion 231 through the through slit 239. It penetrates and is coupled to the female socket portion 125 provided on the main board 120 using a socket pin coupling method, so that the received signal can be electrically connected.

Here, the LNA substrate unit 231 has at least one element that performs the function of amplifying the received signal received from the radiating element unit 220 through the left filter unit 240A or the right filter unit 240B among the analog amplification elements. Only the LNA elements of are mounted, and at least one PA (Tx-amp) element excluding the LNA elements mounted on the LNA substrate unit 231 may be mounted on the main board 120.

Since the PA elements mounted on the main board 120 generate relatively much more heat than the LNA elements, the LNA elements are designed to be distributed and arranged toward the RF module 200, which is separate from the main board 120. Since the spacing between each heating element mounted on (120) can be widened, the overall heat dissipation performance can be improved by preventing the heat generated by the heating elements from concentrating.

Meanwhile, referring to FIGS. 17 and 18, the LNA substrate unit 231 has each cavity (C1, C2) of the left filter unit 240A and the right filter unit 240B formed on the left and right sides of the unit RF filter body 210. ) and the second connecting pin terminal 282, which is one of the components of the filter connecting portion, may be electrically connected to each other.

For this purpose, the unit RF filter body 210 has a pin installation hole (drawing) penetrating the substrate installation space 230S, the cavity C1 of the left filter unit 240A, and the cavity C2 of the right filter unit 240B. (not indicated by a symbol) may be formed.

The second connecting pin terminal 282 may be installed through the pin installation hole and then fixed to the LNA substrate 231 by a soldering method, such as soldering.

In this way, the antenna RF module 200 according to an embodiment of the present invention is connected to the first connecting pin terminal 281 to the main board 120 and the male socket portion 235 of the LNA substrate portion 231. It is possible to maintain the PIM characteristics by improving the flow and gap problems of the internal components that may occur due to weak coupling force, as well as the first connecting pin terminal 281, the second connecting pin terminal 282, and the third connecting pin terminal ( 283) has the advantage of maintaining stable PIMD characteristics by fixing them with solder. However, not all of the filter connecting parts must be fixed with solder, and the first connecting pin terminal 281 among the filter connecting parts can be maintained in a stable connection by the above-described fixing member 280. It is also possible to be designed to be one-touch coupled to the pin coupling portion 125 of the assembly.

More specifically, as shown in FIGS. 19A and 19B, a first connecting pin terminal 281 is provided in the form of a groove (female form among male and female combinations) on the rear portion of the unit RF filter body 210, and the board assembly Among the configurations, the pin coupling part 125 may be provided in the form of a protrusion (male form among male and female combinations) on the front of the main board 120.

In addition, the male socket portion 235 formed on the LNA substrate portion 231 of the amplifying element portion 220 provided on the upper or lower side of the unit RF filter body 210 is provided to protrude rearward, and the configuration of the board assembly A female socket portion 127 may be provided in the form of a socket on the front of the main board 120.

Here, the RF module 200 is individually approached by an assembler by seating it on each fixing member 280 through the open front of the antenna housing portion 110, and then the male socket portion of the LNA substrate portion 231 ( 235) and the first connecting pin terminal 281 are one-touch coupled so that they are simultaneously connected to the female socket portion 127 and the pin coupling portion 125 of the main board 120, and then attach the reflector using the assembly screw 287. The panel 270 can be stably fixed, and in this case, as shown in FIG. 20, electricity between the first connecting pin terminal 281 and the terminal member 125a such as the coaxial connector of the pin coupling portion 125 A direct connection can be maintained.

Meanwhile, the RF module 200 for an antenna according to an embodiment of the present invention includes a left tuning cover 250A and a right tuning cover coupled to cover each left and right cavity (C1, C2) of the unit RF filter body 210. It may further include a left filter cover (260A) and a right filter cover (260B) that shield (250B), the left tuning cover (250A), and the right tuning cover (250B).

Tuning grooves 251 may be formed in the left tuning cover 250A and the right tuning cover 250B to perform precise frequency tuning by adjusting the separation distance from the resonator DR in each cavity C1 and C2.

Here, the frequency filtering process within each cavity (C1, C2) of the unit RF filter body 210 must be performed in a completely sealed state, and if the seal is not complete or due to an increase in use period, the frequency filtering process must be performed in a completely sealed state. If sealing performance deteriorates, the PIMD problem described above may occur.

In order to prevent such PIMD problems from occurring, the left filter cover (260A) and right filter cover (260B), including the left tuning cover (250A) and right tuning cover (250B), are laser welded to the unit RF filter body. It can be attached to (210).

Above, an embodiment of an RF module for an antenna and an antenna device including the same according to 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 embodiments, and it is natural that various modifications and equivalent implementations can be made by those skilled in the art in the technical field to which the present invention pertains. . Therefore, the true scope of rights of the present invention will be determined by the claims described later.

100: Antenna device 110: Antenna housing part
110S internal space 111: rear heat dissipation fin
120: main board 125: female socket part
130: PSU board part 140: RFIC board part
150: surge substrate 200: RF module for antenna
210: Unit RF filter body 220: Radiating element unit
230: Amplifying element unit 270: Reflector panel

Claims (17)

An antenna housing portion formed in the shape of a case with an open front side;
a board assembly arranged to be in close contact with an internal space formed by the antenna housing unit; and
Arranged on the front of the board assembly, a plurality of unit RF filter bodies are located in the up and down vertical direction (hereinafter referred to as 'V-direction') and left and right horizontal direction (hereinafter referred to as 'H-direction') ), a plurality of RF modules for antennas arranged side by side in several rows or several columns; and
A plurality of fixing members for fixing the antenna RF module to the antenna housing unit; Including,
The plurality of fixing members are,
a horizontal fixing bar providing module fixing screw holes where the plurality of unit RF filter bodies are fixed by screw coupling; and
a plurality of fixing legs extending rearward from the horizontal fixing bar and having rear ends fixed to the antenna housing portion or the front of the board assembly; Including an antenna device. In claim 1,
The antenna housing portion is manufactured separately into at least three parts and then joined together to prevent distortion due to thermal stress between the top and bottom due to the difference in heating value of the heating elements mounted on the board assembly, and the length of the vertical side is at least that of the horizontal side. An antenna device formed to be longer than the length by a predetermined ratio. In claim 2,
The antenna housing part,
A center heat sink panel that forms the exterior of the rear middle portion of the antenna device;
an upper heat sink panel coupled to the upper part of the center heat sink panel to form an exterior of the upper rear portion of the antenna device; and
a lower heat sink panel coupled to the lower portion of the center heat sink panel to form an exterior appearance of the lower rear portion of the antenna device; Including,
The center heat sink panel, the upper heat sink panel, and the lower heat sink panel each have a vertical side at least longer than a horizontal side. In claim 3,
At the top and bottom of the center heat sink panel, an upper coupling flange and a lower coupling flange are provided with a plurality of screw through holes for screw assembly of the upper heat sink panel and the lower heat sink panel, respectively,
An antenna device in which the upper coupling flange and the lower coupling flange of the center heat sink panel are coupled to each other using a plurality of assembly screws while abutting the lower rear portion of the upper heat sink panel and the upper rear upper portion of the lower heat sink panel, respectively. In claim 4,
The upper coupling flange and the lower coupling flange of the center heat sink panel are disposed to overlap the rear lower portion of the upper heat sink panel and the rear upper portion of the lower heat sink panel, respectively, in the front-to-back direction, and are relatively An antenna device located forward of the rear lower portion and the rear upper portion of the lower heat sink panel. In claim 4,
The upper coupling flange and the lower coupling flange of the center heat sink panel are recessed and disposed inside the rear lower portion of the upper heat sink panel and the inner upper rear portion of the lower heat sink panel, respectively. In claim 3,
The antenna device wherein the joint portion of the center heat sink panel and the upper heat sink panel and the joint portion of the center heat sink panel and the lower heat sink panel are waterproofed. delete delete In claim 1,
Among the plurality of fixing legs, one fixing leg and the other fixing leg formed at both ends are screw-coupled to a corner mounting block provided at an inner corner of the antenna housing,
Among the plurality of fixing legs, the center fixing leg formed between the one fixing leg and the other fixing leg is fixed to a board mounting block provided on the front of the board assembly by a screw coupling method. In claim 1,
The RF module for the plurality of antennas,
The unit RF filter body;
A plurality of radiating element modules provided to protrude in front of the unit RF filter body; and
A reflector panel integrally formed at the front end of the unit RF filter body to have an area larger than the front surface of the unit RF filter body, and reflecting radio waves radiated from the plurality of radiating element modules forward; Including,
The plurality of antenna RF modules are fixed by an operation in which a filter fixing screw penetrating the reflector panel from front to back is fastened to the module fixing screw hole of the horizontal fixing bar provided on the back side of the reflector panel. Device. In claim 11,
The RF module for the plurality of antennas,
an amplification element unit provided on one of the upper and lower surfaces of the unit RF filter body and including an LNA substrate unit on which at least one analog amplification element is mounted; and
a filter connecting portion provided on a rear portion of the unit RF filter body and electrically connected to the board assembly; It further includes,
The male socket portion and the filter connecting portion formed on the LNA substrate portion are simultaneously connected to the female socket portion and the pin coupling portion provided on the front of the board assembly when fixing the unit RF filter body to the horizontal fixing bar through screw fastening. Connectable, antenna device. In claim 3,
The antenna housing part,
four side housing panels respectively coupled to front ends of the center heat sink panel, the upper heat sink panel, and the lower heat sink panel, and forming left and right and upper and lower side exteriors of the antenna device; It further includes,
The plurality of fixing members include horizontal fixing bars whose both ends are fixed to the inner surfaces of the left and right housing panels, respectively, which form the left and right exteriors of the antenna device among the four side housing panels; Including an antenna device. In claim 13,
A radome panel coupled to the front of the antenna housing to shield the open front of the antenna housing; It further includes,
An antenna device in which a plurality of support bosses extending backward and protruding are formed on the rear surface of the radome panel to support the front end of the horizontal fixing bar. In claim 3,
A plurality of rear heat dissipation fins are provided on each rear surface of the center heat sink panel, the upper heat sink panel, and the lower heat sink panel to increase the heat dissipation surface area of the heat generated from the heat generating elements in the internal space,
At least some of the plurality of rear heat dissipation fins are separately manufactured and coupled to a coupling heat sink rib integrally formed on the rear portion of each heat sink panel. In claim 14,
An antenna device wherein the four side housing panels and the radome panel are made of the same material. In claim 14,
The plurality of fixing members are,
An antenna device supported by a plurality of support bosses of the radome panel with a buffer made of silicone rubber interposed between the rear surface of the radome panel.

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