CN116918174A - Antenna radio frequency module, radio frequency module assembly and antenna device comprising same - Google Patents

Abstract

The invention relates to an antenna radio frequency module and an antenna device comprising the same, in particular to an antenna radio frequency module comprising: the radio frequency filter is arranged on the front surface of the main board; the radiation element module is arranged on the front surface of the radio frequency filter; at least one reflection grating sheet disposed between the radio frequency filter and the radiating element module, and allowing external air to flow in from a front side to a rear side of the radio frequency filter or allowing external air to flow out from the rear side to the front side of the radio frequency filter while the radiating element module is Grounded (GND); and an antenna cover coupled to the front surface of the radio frequency filter for protecting the radiating element module from the outside, thereby providing an advantage of greatly improving the overall heat dissipation performance.

Description

Antenna radio frequency module, radio frequency module assembly and antenna device comprising same

Technical Field

The present invention relates to an antenna radio frequency MODULE, a radio frequency MODULE ASSEMBLY, and an antenna device (RF MODULE ASSEMBLY AND ANTENNA APPARATUS INCLUDING THE SAME) including the same, and more particularly, to an antenna radio frequency MODULE, a radio frequency MODULE ASSEMBLY, and an antenna device including the same, which configure a radiating element MODULE and a radio frequency element to be completely separated from a main board and to be exposed to the front external air, thereby being capable of solving the problem of difficult heat dissipation design for the front side having the radiating element in the related art.

Background

Base station antennas including repeaters used in mobile communication systems have various forms and structures, and generally have a structure in which a plurality of radiating elements are appropriately disposed on at least one reflector plate standing along a length.

Recently, research is actively being conducted to satisfy high performance requirements for antennas based on multiple input/output (MIMO) and to achieve miniaturization, light weight, and low cost structures. In particular, antenna devices for realizing linear polarization or circular polarization and applying patch type radiating elements generally use a method of plating radiating elements made of dielectric substrates of plastic or ceramic materials and bonding them to PCBs (printed circuit boards) or the like by soldering combination.

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

As shown in fig. 1, in the antenna device 1 of the related art, a plurality of radiation elements 35 are arranged in a beam output direction, that is, to a front side of an antenna housing body 10, so as to output in a desired direction and easily form a beam, a radome (radome) 50 is installed at a front end portion of the antenna housing body 10 with the plurality of radiation elements 35 installed therebetween, in order to avoid being affected by an external environment.

More specifically, the antenna device 1 in the related art includes: an antenna case body 10 configured in a thin rectangular parallelepiped box shape with an open front face, and a plurality of heat radiating fins 11 integrally formed on a rear face; a main board 20 stacked on the back surface of the antenna housing body 10; and an antenna board 30 that is provided in a stacked manner on the front surface inside the antenna housing body 10.

The front surface of the antenna board 30 is mounted with a patch type radiation element or a dipole type radiation element 35, and the front surface of the antenna housing body 10 may be mounted with a radome 50 for protecting various accessories inside from the outside and helping the radiation element 35 radiate smoothly.

However, in one example 1 of the antenna device according to the related art, the front side portion of the antenna housing body 10 is completely shielded by the single radome 50, and thus the radome 50 is a factor that hinders heat dissipation of the antenna device. At this time, when the antenna cover 50 is removed and the radiation element 35 is exposed to the outside, the antenna board 30 is inevitably exposed to the outside, and thus the protection of the external environment is necessarily insufficient.

In addition, the antenna board 30 is made of a normal PCB material having a low thermal conductivity, that is, FR-4 material, and a mounting space (not shown) where a main board is mounted is a space having a large heat generation amount, and the front side is completely shielded as in the radome 50, so that there is a problem that it is difficult to switch the heat dissipation design to the front side.

For this reason, in the front and back surfaces of the main board, not only the digital element but also all analog amplifying elements need to be mounted on the back surface in the heat radiation direction, and there is a problem that the heat radiation performance of the entire antenna device 1 is deteriorated due to the deflection of the heat radiation portion.

Disclosure of Invention

Problems to be solved

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an antenna rf module, an rf module assembly, and an antenna apparatus including the same, which can disperse heat to front and rear sides of a system by disposing the antenna rf module at the front side to be exposed to the outside air, thereby greatly improving heat dissipation performance.

Further, another object of the present invention is to provide an antenna radio frequency module including a plurality of ground tabs that perform a reflection function of blocking signal interference of a rear electronic device while performing a grounding function of a radiating element, and an antenna device including the same.

And, it is still another object of the present invention to provide an antenna radio frequency module including a plurality of radio frequency modules that can be easily assembled at a front case formed by modularly manufacturing a unit radio frequency filter, a unit radiating element module, and a unit antenna cover and for dividing an installation space of a main board from a space of front external air, a radio frequency module assembly, and an antenna device including the same.

Also, it is another object of the present invention to provide an antenna radio frequency module, a radio frequency module assembly, and an antenna device including the same, which can achieve a simplified design of front and rear assemblies of a main board by providing an amplifier element and a surge board mounted on the main board in the related art to be completely separated from a mounting space where the main board is mounted or to be spaced apart from the main board.

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

Solution to the problem

According to an embodiment of the antenna radio frequency module of the invention, the antenna radio frequency module comprises: the radio frequency filter is arranged on the front surface of the main board; the radiation element module is arranged on the front surface of the radio frequency filter; at least one reflection grating sheet disposed between the radio frequency filter and the radiating element module, and allowing external air to flow in from a front side to a rear side of the radio frequency filter or allowing external air to flow out from the rear side to the front side of the radio frequency filter while the radiating element module is Grounded (GND); and an antenna cover coupled to a front surface of the radio frequency filter for protecting the radiating element module from an external influence.

Wherein the at least one reflective grating sheet may be integrally formed with the radio frequency filter.

And, the radio frequency filter includes a filter body and resonance rods, a plurality of cavities of the filter body are formed to be opened toward a front side, the resonance rods are respectively disposed inside the cavities, and the reflection grating plates extend in an outer side direction of upper, lower, left and right side along a front end frame of the filter body, and may be disposed and formed to have predetermined interval distances, respectively.

And, the reflection grating sheet may perform a reflection function together with an outer panel provided to shield the front surface of the filter body.

Also, the distance between the reflecting grating sheets may be set by considering the set distance of the radiating elements included in the radiating element module.

And, the radio frequency filter and the reflecting grating sheet may be manufactured as one body by a die casting process using a metal component molding material.

And, a part of the reflection grating sheets may be extendably formed to overlap with the reflection grating sheets formed in the adjacent radio frequency filter in the left-right direction.

And, a part of the reflection grating may be formed to extend to form a straight line in the up-down direction with the reflection grating formed in the adjacent radio frequency filter in the up-down direction.

And, the distance between the reflecting grating sheets may be set to have a range of more than 1/20λ and less than 1/10λ of the operating frequency.

And, the radio frequency filter includes: a filter body having a plurality of cavities formed to be opened toward the front side; the resonant rods are respectively arranged in the cavities; and a filter outer panel disposed to shield a front surface of the filter body, wherein the radiating element module is positionable and bondable to an inner side of the filter body to cover the front surface of the filter outer panel.

And, the antenna cover may conceal the radiating element module from the outside and be coupled to the filter body.

And, the radiating element module includes: a printed circuit board for a radiation element, which is arranged on the front surface of the radio frequency filter in a clinging way, and is printed with an antenna patch circuit part and a power line, wherein the antenna patch circuit part generates at least one polarized wave of dual polarized waves; and a radiation guide formed of a conductive metal material and electrically connected to the antenna patch circuit portion of the radiating element-use printed circuit board, wherein the radiation guide is connectable to the radiating element-use printed circuit board after being detachably coupled to the back surface of the antenna cover.

And a plurality of coupling protrusions are formed to protrude to the rear side on the rear surface of the antenna cover, the plurality of coupling protrusions being coupled with the radiation guide, and a plurality of coupling holes being formed to penetrate the radiation guide back and forth so that the plurality of coupling protrusions penetrate and are coupled.

And, the antenna radio frequency module may further include: an amplifying element module disposed between the main board and the radio frequency filter and mounted with at least one analog amplifying element, wherein the amplifying element module may include: an amplifying unit body having a substrate installation space opened at one side or the other side in the width direction; the amplifying part substrate is arranged in the amplifying part body, the front end part of the frame is connected with the radio frequency filter through signals, and the rear end part of the frame is connected with the main board through signals; and an amplifying part cover for covering the amplifying part substrate.

And, the amplifying part substrate may be coupled with the rf filter feed-through pin using a feed-through pin terminal as a medium, and coupled with the main board plug.

And, the amplifying part substrate may have at least one male part for coupling with the main board latch.

And, the amplifying part substrate is closely coupled to the inner side surface of the amplifying part body, and the outer side surface of the amplifying part body may be integrally formed with a plurality of amplifying part heat radiating fins for radiating heat generated from the amplifying part substrate to an external space.

And, the radio frequency filter and the radiating element module can be connected by a feed-through pin with a feed-through pin terminal as a medium.

An antenna radio frequency module assembly according to one embodiment of the present invention includes: the plurality of radio frequency filters are arranged on the front surface of the main board; the plurality of radiating element modules are respectively arranged on the front surfaces of the plurality of radio frequency filters; at least one reflection grating sheet provided between the plurality of radio frequency filters and the plurality of radiating element modules, respectively, and allowing external air to flow in from a front side to a rear side of each of the plurality of radio frequency filters or allowing external air to flow out from a rear side to a front side of the radio frequency filters while the radiating element modules are Grounded (GND); and a plurality of antenna covers coupled to a front surface of each of the plurality of radio frequency filters for protecting the plurality of radiating element modules from external influences.

An antenna device according to an embodiment of the present invention includes: a main board on the front or back of which at least one digital element is mounted; a rear case formed in a box shape such that a front side of a mounting space for mounting the main board is opened; a front housing shielding a front side of an opening of the rear housing, configured to divide an installation space and an external space of the rear housing; and a radio frequency module assembly disposed at a front side of the front case and connected to the main board through an electric signal line, wherein the radio frequency module assembly includes: the plurality of radio frequency filters are arranged on the front surface of the main board; a radiating element module disposed on a front face of each of the radio frequency filters; at least one reflection grating sheet provided between the plurality of radio frequency filters and the radiating element module, respectively, and allowing external air to flow in from a front side to a rear side of each of the radio frequency filters or allowing external air to flow out from a rear side to a front side of each of the radio frequency filters while Grounding (GND) the radiating element module; and a plurality of antenna covers coupled to a front surface of each of the plurality of radio frequency filters for protecting the plurality of radiating element modules from external influences.

Wherein the antenna device further comprises: a surge plate portion disposed at an interval from a rear side of the main board in an installation space of the rear case and disposed closely to a front surface of the rear case; and a PSU board portion provided to have the same front face as the main board in the mounting space of the rear case and provided on an upper side of the main board, wherein the surge board portion and the PSU board portion, and the PSU board portion and the main board are electrically connected with at least one bus bar as a medium, respectively.

And, the antenna device further includes: an RFIC substrate part that is provided at a distance from the front side of the motherboard in the mounting space of the rear case and is provided so as to be in close contact with the back surface of the front case, and that is capable of mounting an RFIC element that corresponds to an FPGA element mounted on the motherboard.

And, heat generated from the RFIC element is dissipated by thermal conduction in thermal contact with the front housing surface.

And, the front end portions of the plurality of radio frequency modules are located at positions further spaced apart from the front side of the frame of the front case, and may further include at least one ventilation plate coupled with the frame portion of the front case and disposed in a shape surrounding side portions of the plurality of radio frequency modules.

Also, a plurality of ventilation holes having a predetermined size may be formed at the ventilation board.

ADVANTAGEOUS EFFECTS OF INVENTION

According to one embodiment of the antenna radio frequency module, the radio frequency module assembly, and the antenna device including the same according to the present invention, various effects as follows can be achieved.

First, by spatially separating heat generated from the heating element of the antenna device, the heat can be dispersed to the front and rear sides of the antenna device, thereby greatly improving heat dissipation performance.

Second, by modifying the design of the existing single radome, which hinders the heat dissipation to the front side of the antenna, into a unit radome combined according to each radio frequency module, there is an effect of eliminating the heat dissipation obstacle and more effectively protecting the radiating element module.

Third, the rf filter is changed to an rf module together with the rf related amplifying element which has been conventionally installed in a concentrated manner on the main board side, and the external air space is provided outside the front side, thereby having an effect of improving the overall heat dissipation performance of the antenna device in reply.

Fourth, by separating the radio frequency related amplifying element (particularly, RFIC board) from the main board, the number of layers of the main board as a multi-layer board (Multi Layer Board) can be greatly reduced, thereby having an effect of saving the manufacturing cost of the main board.

Fifth, by configuring the rf related parts having the frequency dependency (Frequency Dependence) as rf modules and connecting and disconnecting the rf modules through the front housing with the heat dissipation function attached thereto in a signal connection manner, only the corresponding rf modules need to be replaced when the individual rf related parts constituting the antenna device are failed or damaged, thus having an effect of easy maintenance.

Sixth, since the antenna device dispersedly radiates heat, the length and volume of the heat sink (heat sink) integrally formed at the rear case can be reduced, thereby having the effect of easily realizing the overall light and thin design of the product.

Seventh, by completely separating the radio frequency filter and the amplifying element module in the front-rear direction in the configuration of the radio frequency module, there is an effect of minimizing a thermal effect with each other.

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

Drawings

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

Fig. 2 is a perspective view illustrating an antenna device according to an embodiment of the present invention.

Fig. 3 is an exploded perspective view of fig. 2.

Fig. 4 is an exploded perspective view for explaining an installation state and a removal state of the radio frequency module assembly on the front case.

Fig. 5 is an exploded perspective view showing a state in which the front case is separated from the rear case.

Fig. 6 is an exploded perspective view showing a state in which the front housing is mounted on the rear housing.

Fig. 7 is a perspective view showing a state in which the ventilation board is detached from the configuration of fig. 2.

Fig. 8A and 8B are exploded perspective views showing the assembled relationship of the various panels to the rear housing.

Fig. 9 is an exploded perspective view for describing a coupled state of the surge plate portion in the configuration of fig. 2.

Fig. 10 is an exploded perspective view showing a bonding position of the RFIC board section in the configuration of fig. 2.

Fig. 11 is an exploded perspective view showing a state in which the RFIC board section of fig. 10 is coupled to the rear surface of the front case.

Fig. 12 is an exploded perspective view showing an installation state of a front case of the radio frequency module in the configuration of fig. 2.

Fig. 13 is an enlarged view showing a front face of a front case for mounting or demounting a radio frequency module and a rear face portion of the radio frequency module.

Fig. 14 is a cross-sectional perspective view showing a state where the radio frequency module is coupled to the main board.

Fig. 15 shows a perspective view of a unit radio frequency module in the configuration of fig. 2.

Fig. 16 is an exploded perspective view of fig. 15.

Fig. 17A to 17B are exploded perspective views showing the mounted states of the front module and the rear module in the configuration of the radio frequency module.

Fig. 18 is an exploded perspective view showing a mounted state of the radome in the configuration of the radio frequency module.

Fig. 19A and 19B are exploded perspective views showing the mounted state of the radiating element module in the configuration of the radio frequency module.

Fig. 20 is an exploded perspective view showing a mounted state of the radome of the radiation guide in the configuration of the radiating element module.

Fig. 21 is a perspective view and a partially enlarged view showing the shape and arrangement state of the ground patch in the configuration of the radio frequency module of fig. 2.

Fig. 22 is a partially enlarged perspective view showing the arrangement relationship of the reflection grating pieces.

Fig. 23A and 23B are a sectional view and a partial enlarged view taken along the line A-A and the line B-B of fig. 15.

Description of the reference numerals

100: an antenna device; 110: a rear housing; 111: a rear heat sink; 115: an installation space; 120. 120a to 120d: a ventilation board; 130: a handle portion; 140: a front housing; 141: front cooling fins; 143: a socket penetration portion; 144: a foreign matter inflow prevention ring; 146: module assembling screws; 147: a surface bonding part; 149: a ring mounting groove; 150: an RFIC substrate section; 153: an RFIC substrate section; 155: a middle female part; 157: a spacer support; 160: a thermal separation plate; 161: a middle male part; 170: a main board; 171: a final female part; 173: a digital element; 180: a PSU plate portion; 183: a PSU element; 185: a bus bar; 185': a bus bar fastening screw; 190: a surge plate portion; 195: a bus bar; 195': a bus bar fastening screw; 200: a radio frequency module; 210: a radiating element module; 211: printed circuit board for radiating element; 212: an antenna patch circuit section; 213: a power line; 214a: an input-side through hole; 214b: an output-side through hole; 217: a radiation guide; 217a: a plurality of coupling holes; 220: a radio frequency filter; 221: a filter body; 222: a cavity; 223: a resonant rod; 224: a reflective grating sheet; 226: a through pin terminal; 227: a filter tuning cover; 228: a filter outer panel; 229: a through pin terminal; 230: an amplifying element module; 231: an amplifying unit body; 232: an amplifying section fin; 233: a substrate placement space; 234: assembling plates; 235: an amplifying section substrate; 235a: a male seat; 236: an amplifying part cover; 238: a joining flange; 239: screw boss; 240: an antenna cover; 241: a hook coupling portion; 247a: a plurality of coupling protrusions; 250: module assembling screws; 300: an antenna radio frequency module assembly; 400: and an outer mounting member.

Best mode for carrying out the application

Hereinafter, an antenna radio frequency module, a radio frequency module assembly, and an antenna device including the same according to an embodiment of the present application will be described in detail with reference to the accompanying drawings.

It is to be noted that when reference numerals are added to components of the respective drawings, the same reference numerals are given to the same components as much as possible even if they are shown on different drawings. In addition, in describing the embodiments of the present application, when it is judged that detailed descriptions of related well-known structures or functions interfere with understanding of the embodiments of the present application, detailed descriptions thereof will be omitted.

In describing components of embodiments of the present application, terms such as first, second, A, B, (a), (b), and the like may be used. These terms are only used to distinguish one element from another element, the nature, order, or sequence of which is not limited by these terms. Furthermore, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms such as the same as those defined in the conventional dictionary should be interpreted to have meanings consistent with meanings in the background of the related art, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The technical idea of the present invention is to configure a single radome of a conventional antenna device as a unit radome combined in terms of individual radio frequency modules and to combine radio frequency related accessories of a main board installed inside an antenna housing into a radio frequency module with a radio frequency filter or to separate from the main board so as to spatially separate and distribute heat generated from individual heat radiating elements of the antenna device, and hereinafter, an antenna radio frequency module 200, a radio frequency module assembly 300 and an antenna device including the same will be described based on one embodiment shown in the drawings.

Fig. 2 is a perspective view showing an antenna device according to an embodiment of the present invention, fig. 3 is an exploded perspective view of fig. 2, fig. 4 is an exploded perspective view for explaining an installation state and a removal state of a radio frequency module assembly on a front case, fig. 5 is an exploded perspective view showing a state in which the front case is separated from a rear case, fig. 6 is an exploded perspective view showing a state in which the front case is installed on the rear case, fig. 7 is a perspective view showing a state in which a ventilation board is removed from the configuration of fig. 2, fig. 8A and 8B are exploded perspective views showing an assembled relationship of various boards and the rear case, fig. 9 is an exploded perspective view for describing a coupling state of a surge board portion in the configuration of fig. 2, fig. 10 is an exploded perspective view showing a coupling position of a RFIC board portion in the configuration of fig. 2, and fig. 11 is an exploded perspective view showing a state in which the RFIC board portion of fig. 10 is coupled with a rear surface of the front case.

As shown in fig. 2 to 7, an antenna device 100 according to an embodiment of the present invention includes: a rear case 110 forming a rear side appearance of the antenna device 100; the front case 140 forms a part of the front side appearance of the antenna device and is coupled to the front surface of the rear case 110.

Furthermore, the antenna device 100 further includes: a main board 170 closely fitted to the installation space 115 of the rear case 110; a PSU plate portion 180 provided on the upper side of the main plate 170; a surge plate portion 190 disposed farther rearward than the main plate 170; an RFIC substrate section 150 provided on the back surface of the front case 140 in close contact therewith; and an antenna radio frequency module (Radio Frequency Module) 200 (hereinafter, referred to as 'radio frequency module') stacked on the front surface of the front case 140.

The rear case 110 and the front case 140 are combined with the rf module 200 to form the external appearance of the antenna device 1, and meanwhile, although not shown in the drawings, the combined action of an intermediary and a support bar, which is prepared for mounting the antenna device 100, may be performed. However, the combination of the rear case 110 and the front case 140 is not necessarily connected to the support bar, and may be directly mounted and fixed to a vertical structure such as an inner wall or an outer wall of a building, without limiting the installation space of the antenna device 100. In particular, the antenna device 100 according to one embodiment of the present invention adopts a slim design that minimizes the front-to-rear thickness, and thus has an important meaning in terms of easier wall-mounting. As will be described in more detail later.

The rear case 110 and the front case 140 are made of a metal material having excellent heat conductivity so as to facilitate heat dissipation in the overall heat conduction process, and are formed in a rectangular parallelepiped shape having a thin front-rear thickness, and in particular, the rear case 110 is formed to be open at the front and to have a predetermined mounting space 115 to function as a main board 110 in which digital components (e.g., field programmable gate array (FPGA, field Programmable Gate Array) elements 173) are mounted, and a PSU board portion 180 in which power supply portions (PSUs, power Supply Unit) are mounted and a surge board portion 190 of a surge accessory element.

On the other hand, although not shown in the drawings, the inner side surface of the rear case 110 may be formed in a shape conforming to the shape of a protruding profile formed by a digital element (FPGA element 173, etc.) mounted on the back surface of the main board 170 and/or a PSU element 183, etc. mounted on the back surface of the PSU board section 180 and a surge fitting element mounted on the back surface of the surge board section 190. This is to maximize heat dissipation performance by maximizing the area of thermal contact with the back surfaces of the motherboard 170, PSU board 180, and surge board 190.

The left and right sides of the rear housing 110 may also be provided with grip portions 130 that can be gripped for a worker to carry the antenna device 100 according to one embodiment of the present invention in the field or to facilitate manual installation to a support bar (not shown) or an inner or outer wall of a building.

Further, various outside mounting members 400, which are not shown, connected to the base station apparatus cable and used for coordinating internal accessories, are penetratingly mounted outside the lower end of the rear case 110. The outer mounting member 400 is provided in the form of at least one cable connection terminal (socket) to which connection terminals of coaxial cables (not shown) can be connected.

Referring to fig. 2, a plurality of rear heat sink 111 may be integrally formed at the rear surface of the rear case 110 to have a predetermined pattern shape. In which heat generated from the respective heating elements mounted on the main board 170, PSU board 180, and surge plate portion 190 of the mounting space 115 of the rear case 110 can be directly radiated to the rear side through the plurality of rear heat radiating fins 111.

As shown in part (b) of fig. 4, the plurality of rear heat sinks 111 are configured to be gradually inclined upward toward the left and right ends with reference to the center portion of the left-right width, so that heat dissipated to the rear side of the rear case 110 forms upward airflows dispersed toward the left and right sides, respectively, thereby allowing the heat to be dispersed more rapidly. However, the shape of the rear fin 111 is not necessarily limited thereto. For example, although not shown in the drawings, when a blower fan module (not shown) is further provided at the rear surface side of the rear case 110 to promote the smooth flow of external air, the rear heat sink 111 may be formed in parallel with left and right side ends of the blower fan module provided in the middle, respectively, so that the emitted heat is more rapidly discharged through the blower fan module.

Although not shown in the drawings, a mounting portion (not shown) may be integrally formed on a part of the plurality of rear fins 111, and the mounting portion and a clip device (not shown) for connecting the antenna device 1 to a support rod (not shown). Wherein the clamping device may be configured as a device for adjusting the directivity of the antenna device 100 by rotating in the left-right direction or tilting the antenna device 100 according to an embodiment of the present invention mounted at the front end thereof in the vertical direction.

However, the clamping means for tilting and rotating the antenna device 100 does not necessarily have to be coupled to the mounting portion. For example, when the antenna device 100 is mounted on an inner wall or an outer wall of a building in a wall-mounted manner, a clip having a clip shape that is easily combined with the wall-mounted manner may be further combined to the mounting portion.

On the other hand, referring to fig. 1 to 7, according to one embodiment of the antenna device 1, it may further include: a surge plate portion 190 disposed to be spaced apart from a rear portion of the main board 170 in the installation space 115 of the rear case 110 and to be closely disposed at a front surface of the rear case 110; and a PSU plate portion 180 provided to have a front surface that coincides with the front surface of the main board 170 in the installation space 115 of the rear case 110, and provided on an upper side of the main board 170.

Among them, the surge plate portion 190 may be provided such that a front end thereof is supported by a rear surface of the main plate 170 and a rear end thereof is spaced apart a predetermined distance behind the main plate 170 by a plurality of spacing supports 197 supported at a front surface of the surge plate portion 190.

Referring to fig. 8A and 8B, the surge plate portion 190 and the PSU plate portion 180 and the main plate 170 and the PSU plate portion 180 may be electrically connected to each other by at least one bus bar 195 and 185, respectively.

More specifically, the surge plate portion 190 is disposed at a side of an opposite lower portion in the installation space 115 of the rear housing 110 with respect to the main board 170, and in contrast, the PSU plate portion 180 is disposed at a side of an opposite upper portion of the installation space 115 of the rear housing 110 with respect to the main board 170, and may be electrically connected to each other through the elongated bus bar 195. The end and middle portions of the elongated bus bar 195 may be stably fastened and fixed by a plurality of bus bar fastening screws 195', respectively.

In addition, PSU plate portions 180 are provided in direct contact with the upper end of the main board 170, and may be electrically connected to each other with short bus bars 185 as a medium. The ends of the short bus bar 185 may be stably fastened and fixed by a plurality of bus bar fastening screws 185', respectively.

On the other hand, as shown in fig. 10 and 11, one embodiment of the antenna device 1 may further include an RFIC substrate section 150, which RFIC substrate section 150 is disposed in the mounting space 115 of the rear case 110 at a distance from the front side of the main board 170 and is mounted closely to the back surface of the front case 140.

The RFIC element 153 corresponding to the FPGA element 173 mounted on the motherboard 170 may be mounted on the RFIC substrate section 150. The RFIC substrate section 150 may be provided as an RFIC element 153 mounted together with the above-described FPGA element 173 on the front or back surface of the existing motherboard 170 separated from the motherboard 170, and arranged in thermal contact with the back surface of the front case 140, which is actually a core member for front surface heat dissipation.

In which, as shown in fig. 10, the RFIC substrate section 150 may be provided with its front end supported by the back surface of the front case 140 and its rear end spaced apart at a predetermined distance on the front side of the main board 170 by a plurality of spacing supports 157 supported at the front surface of the main board 170. As described above, by disposing the RFIC substrate section 150 at a distance from the front side of the motherboard 170, thermal separation between the RFIC substrate section 150 and the motherboard 170 can be achieved.

As shown in fig. 11, the rear side of the RFIC substrate section 150 may extend through a thermal separation plate 160 and be electrically connected to a motherboard 170, the thermal separation plate 160 for effecting physical thermal separation from the motherboard 170.

More specifically, as shown in fig. 10, the front surface of the RFIC board 150 is formed with a plurality of intermediate female parts 155, and the intermediate female parts 155 are engaged with pins of male parts 235a of an amplifying part board 235 of the constituent elements of the radio frequency module 200 described later, and as shown in fig. 11, the rear surface of the RFIC board 150 is formed with intermediate male parts 161, and the intermediate male parts 161 are engaged with pins of final female parts 171 formed on the front surface of the main board 170. Wherein the intermediate male part 161 is formed at the rear surface of the RFIC substrate part 150 and penetrates the thermal separation plate 160 and is exposed from the rear surface of the thermal separation plate 160 so as to be latch-coupled with the final female part 171 of the main board 170.

The intermediate female portion 155 formed at the RFIC substrate portion 150 may be exposed to the front side through the socket penetration portion 143 formed at the front case 140. As described above, the male portion 235a of the amplifying portion substrate 235 may be latch-coupled with the middle female portion 155 exposed to the front side.

The thermal separation plate 160 is preferably provided with a heat insulating material to prevent heat generated from the RFIC substrate section 150 from moving to the installation space 115 side of the rear case 110 belonging to the space of the opposite rear side and induce direct front-side heat dissipation through the front case 140.

As shown in fig. 10 and 11, the front case 140 may perform the function of dividing the main board 170, the PSU board 180, the surge board section 190, and the front-side radio frequency module 200, which are disposed in the installation space 115 of the rear case 110. Also, the front case 140 can perform a heat blocking and heat separating function of preventing heat generated in the mounting space 115 on the rear case 110 side from affecting the radio frequency module 200 side by dividing the mounting space 115 on the rear case 110 side from a space other than the space.

Wherein the meaning of "thermal barrier" is preferably understood to prevent heat generated from the radio frequency module 200 located in the front outside air (or front side space) defined in front of the front face of the front case 140 from invading from the back side space (the installation space 115 of the rear case 110) side located in the front case 140; the meaning of "heat separation" is preferably understood as separating a part of a plurality of heat dissipation elements intensively and dispersedly mounted on the front and rear surfaces of the main board 170 stacked in the mounting space 115 of the rear case 110 so as to be arranged to disperse the heat configuration to achieve the rear side heat dissipation and the front side heat dissipation.

A plurality of front heat sinks 141 may be integrally formed at the front surface of the front case 140. As described above, the front case 140 and the plurality of front heat sinks 141 are made of a metal material having excellent heat conductive properties, and the heat of the installation space 115 of the rear case 110 or the heat generated from the RFIC element 153 can be easily dissipated to the front side in a manner that the front case 140 has been conducted as a medium.

Meanwhile, referring to fig. 6, an embodiment of the antenna device 100 according to the present invention may further include at least one ventilation board 120, 120a to 120d. The front end portions of the plurality of radio frequency modules 200 are located at a position spaced farther forward from the rim of the front case 140, and at least one ventilation board 120, 120a to 120d is coupled to the rim portion of the front case 140, and may be combined to surround the side portions of the plurality of radio frequency modules 200 located at the outermost sides.

Referring to fig. 6, according to an embodiment of the antenna device 100 of the present invention, the first and second ventilation plates 120a and 120b are respectively combined to cover upper and rear sides of the rf module 200 of the upper and lower ends of the plurality of rf modules 200 combined to the front surface of the front case 140, and further, the third and fourth ventilation plates 120c and 120b are respectively combined to cover left and right sides of the rf module 200 of the left and right sides of the plurality of rf modules 200 combined to the front surface of the front case 140.

Wherein at least one of the ventilation plates 120, 120a to 120d is integrally formed with a vent hole (not designated by a reference numeral) of a predetermined size such that external air from an external space flows in from the front side of the front case 140 through the vent hole or such that heat emitted from the front side of the front case 140 smoothly flows to the external space, thereby increasing ventilation property. When the air permeability of the outside air is increased, the heat radiation performance of the front side of the front case 140 can be greatly improved.

Also, as described later, the radio frequency module 200 is exposed to front external air defined as the front side of the front case 140, so that at least one ventilation board 120 is provided to shield at least the side of the radio frequency module 200 exposed to the front external air of the at least one ventilation board 120, thereby functioning to prevent an unauthorized user without access rights from approaching the outside.

Wherein, as shown in fig. 5, the at least one ventilation board 120 may be coupled to the rim portion of the front case 140 by an operation in which a plurality of fastening screws 125 are sequentially inserted into a plurality of ventilation board fastening grooves 120 'formed at the rear end portion of the at least one ventilation board 120 and ventilation board fastening holes 140' formed at intervals along the rim end portion of the front case 140.

Meanwhile, as shown in fig. 7, at least one ventilation board 120 is provided to separate a reflection grill sheet 224 integrally formed with a radio frequency filter 220 in a configuration of a radio frequency module 200 to be described later from the front case 140, and a front end portion thereof may be combined with the reflection grill sheet 224 in electrical contact so that some functions of the reflection grill sheet 224 such as Grounding (GND) are smoothly performed.

Fig. 12 is an exploded perspective view showing a mounted state of a front case of the radio frequency module in the configuration of fig. 2, fig. 13 is an enlarged view showing a front face of the front case and a rear face portion of the radio frequency module for mounting or dismounting the radio frequency module, fig. 14 is a cross-sectional perspective view showing a combined state of the radio frequency module and a main board, fig. 15 is a perspective view showing a unit radio frequency module in the configuration of fig. 2, fig. 16 is an exploded perspective view of fig. 15, fig. 17A to 17B are exploded perspective views showing mounted states of a front module and a rear module in the configuration of the radio frequency module, fig. 18 is an exploded perspective view showing a mounted state of an antenna housing in the configuration of the radio frequency module, fig. 19A and 19B are exploded perspective views showing a mounted state of a radiation element module in the configuration of the radio frequency module, and fig. 20 is an exploded perspective view showing a mounted state of an antenna housing of a radiation guide in the configuration of the radiation element module.

Referring to fig. 12 and 20, one embodiment of an antenna radio frequency module 200 according to the present invention includes: the rf filter 220 is arranged on the front surface of the main board 170; a radiating element module 210 disposed on the front surface of the rf filter 220; and at least one reflection grating 224 disposed between the radio frequency filter 220 and the radiating element module 210, and allowing external air to flow in from the front side to the rear side of the radio frequency filter 220 or allowing external air to flow out from the rear side to the front side of the radio frequency filter while the radiating element module 210 is Grounded (GND).

The rf module 200 is a collection of analog rf accessories, for example, the amplifying element module 230 is an rf accessory including an amplifying section substrate 235, and an analog amplifying element for amplifying an rf signal is mounted on the amplifying section substrate 235; the rf filter 220 is an rf accessory for filtering the frequency of an input rf signal to a desired frequency band; the radiating element module 210 is an RF element for receiving or transmitting radio frequency signals.

Thus, as another embodiment, the antenna radio frequency module 200 according to the present invention may be defined as follows.

That is, the antenna radio frequency module 200 according to the present invention is the antenna radio frequency module 200 including the analog radio frequency accessory, which can be implemented by an embodiment including the radio frequency filter 220, the radiating element module 210 disposed at the front side of the radio frequency filter 220, and the analog amplifying element (not shown) disposed on the amplifying element module 230 at the rear side of the radio frequency filter 220.

The amplifying element module 230 may be electrically connected to the main board 170 inside the rear case 110 via an amplifying part substrate 235 described later. Further, it has been described that the RFIC substrate section 150 may be interposed between the amplifying section substrate 235 and the motherboard 170 to make electrical connection as described above.

On the other hand, by providing a plurality of radio frequency modules 200 implemented in the above-described various embodiments, an antenna radio frequency module assembly 300 described later can be configured. Accordingly, it is possible for a manufacturer who manufactures the rf accessories to manufacture, circulate and sell each rf module 200 or each rf module assembly 300 in units of temporarily assemblable modules by temporarily assembling the front housing 140 in advance to a plurality of rf modules 200, thus having an advantage in that a new market environment can be established.

In addition, at least one reflective grating 224 may be integrally formed with the rf filter 220. That is, the radio frequency filter 220 may be manufactured by a die casting mold process using a molding material of a metal component. In which the reflecting grating sheet 224 is also made of a metal material in consideration of functional problems, the radio frequency filter 220 and the reflecting grating sheet 224 are manufactured as one body by the same manufacturing method and the same die casting process as the radio frequency filter 220 using the same metal composition and using the same die casting process. However, the materials of the rf filter 220 and the reflective grating 224 are not necessarily limited to metal materials, and may be molded using a dielectric material, and a thin film of a conductive material may be formed on the outer surface thereof.

Among them, according to an embodiment of the antenna radio frequency module 200 of the present invention, an amplifying element module 230 may be further included, and the amplifying element module 230 is disposed between the main board 170 and the radio frequency filter 220, and at least one analog amplifying element (not numbered) is installed.

As described above, the radiating element module 210 is coupled to the front side and the amplifying element module 230 is coupled to the rear side centering on the rf filter 220, and as shown in fig. 12 to 14, the rf module 200 formed by coupling the radiating element module 210, the rf filter 220 and the amplifying element module 230 may be coupled to the main board 170 by the latch of the front case 140 in units of respective unit modules.

For this, as shown in fig. 12 to 14, the socket penetration portion 143 may be penetratingly formed at the front case 140 in the front-rear direction, and the surface adhesive portion 147 may be formed around the socket penetration portion 143. A ring mounting groove 149 for inserting and intervening a foreign matter inflow prevention ring 144 described later may be formed at the surface bonding portion 147. Meanwhile, module assembly screws 146 for mounting the radio frequency module 200 may be disposed at vertical intervals from each other inside the socket penetration portion 143. The module assembly screw 146 may be penetrated from the back surface of the front case 140 to the front side and fixed to the back surface of the rf module 200.

On the other hand, as shown in part (b) of fig. 13, in the back surface of the radio frequency module 200, a male seat portion 235a of an amplifying portion substrate 235 described later penetrates and is exposed rearward, and a joining flange 238 may be formed so as to be joined to the surface adhesion portion 147 of the front case 140. The engagement flange 238 may have screw bosses 239 formed thereon for tightening and securing the module assembly screws 146.

In which, since the radio frequency module 200 is disposed to be exposed to the front external air corresponding to the front side of the front case 140, it is necessary to prevent inflow of foreign substances including rainwater, dust, or the like. As shown in fig. 14, in the rf module 200 according to an embodiment of the present invention, as an operation of closely adhering the coupling flange 238 of the rf module 200 to the surface adhesive portion 147 of the front case 140, a clamping force may be increased using the module assembling screw 146, and at this time, the foreign matter inflow prevention ring 144 placed in the ring mounting groove 149 may seal the surface adhesive portion of the coupling flange 238 of the rf module 200 and the front case 140.

On the other hand, the amplifying element module 230 performs a function of receiving the signal from the main board 170 and the signal from the radio frequency filter 220, respectively, and outputting the signals after amplifying the signals to a predetermined value.

Wherein the amplifying element module 230 may include: an enlarged portion body 231 having a substrate installation space 233 opened at one side or the other side in the width direction; an amplifying part substrate 235 disposed inside the amplifying part body 231, a front end of the frame being in signal connection with the rf filter 220, and a rear end of the frame being in signal connection with the main board 170 (corresponding to the RFIC substrate part 150 when the RFIC substrate part 150 is disposed apart from the main board 170 in a different embodiment); and an amplifying part cover 236 for covering the amplifying part substrate 235.

As shown in fig. 17A and 17B, such an amplifying element module 230 may be simply and electrically connected to a radio frequency filter 220, which will be described later, by means of a feed-through pin coupling, and physical coupling between each other may be achieved by means of module assembling screws 250 fastened by screw assembling grooves 234a formed in an assembling plate 234 of an amplifying section body 231.

The amplifying substrate 235 is coupled to a Feed through pin (Feed through-pin) of the rf filter 220 via a Feed through pin terminal 229, and may be pin-coupled to the main board 170 (more preferably, to the RFIC substrate section 150).

Also, at least one male portion 235a may be provided on the amplifying portion substrate 235 for latch-coupling with the main board 170 (or the RFIC substrate portion 150 in an embodiment in which the RFIC substrate portion 150 is provided separately from the main board 170).

The amplifying substrate 235a is closely coupled to the inner side surface of the amplifying body 231, and a plurality of amplifying heat radiating fins 232 for radiating heat generated from the analog amplifying element of the amplifying substrate 235 to the outside may be integrally formed on the outer side surface of the amplifying body 231. At least one of a PA element and an LNA element, which are analog amplifying elements, may be mounted in the amplifying section substrate 235.

In the related art, the analog amplifying elements (PA element and LNA element) as main heat dissipating elements are components mounted on the main board 170 provided in the mounting space 115 between the rear case 110 and the front case 140, however, in the embodiment of the present invention, by manufacturing a module unit such as the amplifying element module 230 and changing the design to be exposed through the front outside air side defined as the front space of the front case 140 which is easy to dissipate heat, not only the heat overload of the mounting space 115 can be dispersed, but also there is an advantage of improving the heat dissipating performance.

On the other hand, as shown in fig. 12 to 20, the radio frequency filter 220 may include: a filter body 221 having a plurality of cavities 222 opened forward; resonant rods 223 respectively provided inside the cavities 222; and a filter outer panel 228 provided to shield the front surface of the filter body 221. The filter tuning cover 227 may be coupled between the filter outer panel 228 and the filter body 221.

Wherein the radiating element module 210 may be disposed and coupled to the inside of the filter body 221 to cover the front surface of the outer panel 228.

On the other hand, the radio frequency module 200 may further include an antenna cover 240, and the antenna cover 240 is coupled to the front end portion of the radio frequency filter 220 and protects the radiating element module 210 from the outside.

A plurality of hook coupling parts 241 are formed at the rim part of the antenna cover 240, and the antenna cover 240 may be coupled to the stepped part of the filter body 221 by an operating hook coupled to the hook coupling parts.

The material of the antenna cover 240 is the same as that of the existing single antenna cover panel, but may be combined after being formed separately according to each unit rf module 200. That is, the antenna cover 240 may be provided using a resin material that facilitates the transmission of radio waves, and since the heat generated by the radiating element module 210 during driving is insignificant, a heat insulating material having no relation to the heat dissipation effect may be provided.

The antenna cover 240 may protect the radiating element module 210 from the external environment (foreign matter, etc.) by being coupled to the filter body 221 while hiding the radiating element module 210 from the outside. In particular, although not shown in the drawings, since the radio frequency module 200 is exposed to the front external air, which is the front space of the front case 140, the antenna cover 240 preferably has a sealing structure that completely blocks the inflow of foreign matter such as rainwater into the inside where the radiating element module 210 is provided.

As shown in fig. 18, the rf filter 220 and the radiating element module 210 may be electrically connected to each other using a Feed through pin (Feed through pin) bonding method using the Feed through pin terminal 226 as a medium.

Hereinafter, the antenna radio frequency module 200 according to the present invention implemented in the above-described various embodiments will be described in more detail with reference to the accompanying drawings.

As shown in fig. 12 to 20, the radio frequency module 200 may be stacked on the front surface of the main board 170 through the front case 140.

In the antenna device 100 according to one embodiment of the present invention, a plurality of rf modules 200 constitute one constituent element of the antenna rf module assembly 300.

As shown in fig. 12 to 20, a total of 8 rf modules 220 are adjacently arranged in the left-right direction, and the plurality of rf modules 200 described above are respectively arranged in 4 columns in the up-down direction. However, it is not necessarily limited thereto, and various designs and modifications may be made to the arrangement position and the number of the radio frequency modules 200.

In addition, in one embodiment of the present invention, when the radio frequency filter 220 is described, a cavity filter in which a predetermined number of cavities 222 are formed at one side and a resonance rod 223 composed of a dielectric resonator (DR, dielectric Resonator) or a metal resonance rod is formed inside the cavity 222 is illustrated as an example, however, the radio frequency filter 220 is not limited thereto, and various filters such as a dielectric filter may be employed.

In addition, a plurality of radiating element modules 210 are respectively combined with each of the plurality of radio frequency filters 220 one by one, and each radiating element module 210 implements 2T2R. Therefore, the antenna device 100 according to one embodiment of the present invention, although a model implementing a total of 64T64R is shown, is not limited thereto. For example, when it is possible to secure twice the radiating element arrangement area, each of the radiating element modules 210 may be provided to realize 1T1R, and when it is premised on further improvement of the heat radiation performance, each of the radiating element modules 210 may be provided to realize 4T4R.

In general, in order to implement Beamforming (Beamforming), as shown in fig. 2 to 10, a plurality of radiating element modules 210 are required as Array antennas (Array antenna), and the plurality of radiating element modules 210 may generate narrow directional beams (narrow directional beam) to increase radio wave concentration in a designated direction. Recently, the plurality of radiating element modules 210 using the highest frequency are Dipole antenna (Dipole antenna) or Patch antenna (Patch antenna), and the plurality of radiating element modules 210 are designed and arranged to be spaced apart from each other so as to minimize signal interference with each other.

In one embodiment of the antenna radio frequency module 200 according to the present invention, as shown in fig. 19A and 19B, the radiating element module 210 is formed in a long shape in the up-down direction, and may include: a printed circuit board 211 for radiating elements, which is arranged on the front surfaces of the plurality of rf filters 220, respectively; at least one antenna patch circuit portion 212 pattern-printed on the front surface of the radiating element printed circuit board 211; and a power supply line 213 that supplies power to each of the at least one antenna patch circuit section 212.

As shown in fig. 21A, the front surface of the printed circuit board 211 for radiating element may be printed to form the above-described antenna patch circuit section 212 as a dual polarized wave patch element for generating any one of orthogonal ±45 polarized or vertical/horizontal polarized waves. The three antenna patch circuit sections 212 may be printed to be spaced apart in the up-down direction (longitudinal direction), respectively, and each antenna patch circuit section 212 may be interconnected by a power line 213.

On the other hand, as shown in fig. 19A and 19B, on the printed circuit board 211 for a radiating element, an input side feeder line and an output side feeder line for applying or outputting a signal are branched from the power supply line 213, and an input side through hole 214a and an output side through hole 214B may be penetratingly formed at front end portions of the input side feeder line and the output side feeder line for inserting through pin terminals provided at a rear side of the printed circuit board 211 for a radiating element. A through pin terminal 226, which is one of the configurations of the radio frequency filter 220, may be inserted into the input-side through hole 214a and the output-side through hole 214b, respectively, to supply power to the power supply line 213.

On the other hand, the radiation guide 217 is formed of a heat conductive or electrically conductive metal material, and is electrically connected to the antenna patch circuit section 212. The radiation guide 217 may be used to guide the radiation beam in all directions. In the antenna radio frequency module 200 according to one embodiment of the present invention, a total of three radiation guides 217 are provided in each radio frequency module 200 to ensure a maximum Gain (Gain).

Meanwhile, as shown in fig. 19A and 19B, a plurality of coupling holes 217a are formed on the radiation guide 217, and a plurality of coupling protrusions 247a formed on the rear surface of the antenna cover 24 are respectively fitted into the plurality of coupling holes 217a.

Accordingly, the radiation guide 217 is coupled with the rear surface of the antenna cover 240 together with the printed circuit board 211 for a radiating element through the above-described plurality of coupling protrusions 247a and the plurality of coupling holes 217a, and then the antenna cover 240 can be easily assembled through the operation of coupling the hook coupling portion 241 to the radio frequency filter 220.

Fig. 21 is a perspective view and a partially enlarged view showing the shape and arrangement state of the reflection grating sheet in the configuration of the radio frequency module of fig. 2, and fig. 22 is a partially enlarged perspective view showing the arrangement relationship of the reflection grating sheet.

As shown in fig. 21 and 22, the reflective grating sheet 224 is combined with the reflective grating sheet 224 of the adjacent radio frequency filter 220, so that a mesh shape in which the grating-shaped heat radiation holes are formed can be formed. The plurality of heat release holes formed by the plurality of reflection grating pieces 224 are a configuration that makes the rear side of the plurality of radio frequency filters 220 belonging to the opposite rear side easily release heat emitted from the front case 140 to the outside space, which can perform a function of heat release holes that externally release heat generated inside between the front side of the front case 140 and the reflection grating pieces 224. Therefore, the front external air can be actively used for heat dissipation of the antenna device 100.

Among them, as shown in fig. 21 and 22, some 224-1 of the reflection grating sheets 224 may be extendably formed to overlap each other with the reflection grating sheets 224-2 formed at the radio frequency filter 220 adjacent in the left-right direction. Also, as shown in fig. 21 and 22, some 224-3 of the reflection grating 224 may be formed to be extended to form a straight line in the up-down direction with the reflection grating 224-4 formed in the radio frequency filter 220 adjacent in the up-down direction.

As shown in fig. 21, in order for each of the plurality of reflection grating pieces 224-1 to 224-4 to sufficiently exert the Ground (GND) effect while maintaining a predetermined ventilation performance, the reflection grating pieces 224-1 and 224-3 formed on the side of the radio frequency filter 220 on one side and the reflection grating pieces 224-2 and 224-4 formed on the other side of the radio frequency filter 220 adjacent thereto are not in contact with each other, however, the above-described heat dissipation holes having a predetermined size may be formed.

Among them, the spacing distances dl and d2 between the reflecting grating sheets 224 may be appropriately designed by simulating durability and heat dissipation characteristics thereof, and are preferably set in consideration of the arrangement pitch of the radiating elements included in the radiating element module 210. Meanwhile, as will be described later, the spacing distances dl and d2 between the reflecting grating pieces 224 may be designed by taking into consideration the wavelength of the operating frequency.

For example, the spacing distances dl and d2 between the reflective grating sheets 224 may be set to a magnitude in the range of 1/10λ to 1/20λ having an operating frequency. Wherein the distance 1/10λ has a meaning as an upper limit threshold for performing a sufficient Ground (GND) effect of the radiating element module 210, and the distance 1/20λ has a meaning as a lower limit threshold for ensuring a minimum external air flow rate of the heat radiation holes formed by the plurality of reflection grating pieces 224 to each other.

Accordingly, the distances dl and d2 between the reflecting grating sheets 224 are preferably formed to have a range of greater than 1/20λ and less than 1/10λ of the operating frequency.

More specifically, as shown in fig. 22, when the radio frequency filters 220 are disposed adjacent to each other in the left-right direction, since the reflection grating pieces 224-1 and 224-3 are disposed to overlap each other, the distance d2 between the reflection grating pieces 224-1 and 224-3 is preferably set to a magnitude less than 1/20 λ of the operating frequency.

Also, as shown in fig. 22, when the radio frequency filters 220 are disposed adjacent to each other in the up-down direction, since the reflection grating pieces 224-2 and 224-4 are disposed to form a straight line in the up-down direction, the distance d1 between the reflection grating pieces 224-2 and 224-4 is preferably set to a magnitude less than 1/10 λ of the wavelength.

Meanwhile, the reflective grating sheet 224 is disposed to cover the front surfaces of the plurality of radio frequency filters 220 together with the above-described external panel 228, and may perform a Ground (GND) function of the plurality of radiating element modules 210. For this purpose, the outer panel 228, the filter body 221 of the radio frequency filter 220, and the reflective grating 224 are all preferably made of metal.

Further, the reflecting grill sheet 224 performs not only a ground function of the radiating element module 210 but also a function of protecting the radio frequency filter 220 exposed to the front external air, and the front side of the front case 130 is defined as the front external air.

Fig. 23A and 23B are a sectional view and a partial enlarged view taken along the line A-A and the line B-B of fig. 15.

Referring to fig. 23A, in a state where the radiating element module 210 is coupled to the antenna cover 240, when the antenna cover 240 is closely assembled to the rf filter 220 side to the rear side, an assembly force is generated at the connection space 226a side having the through pin terminal 226 and is elastically supported by the elastic ground washer 226b provided at the front side of the connection space 226a, and the feed-through pin coupling can be immediately completed at a predetermined position while eliminating assembly tolerance.

Also, referring to fig. 23B, when the rf filter 220 and the amplifying element module 230 are closely coupled to each other, when the through pin terminal 229 is disposed inside the rf filter 220 and connected to the through pin connection terminal 229c that mediates the electrical connection with the amplifying element module 230, it is elastically supported by the elastic ground washer 229B disposed at the rear side of the rf filter 220, and the feed-through pin coupling can be immediately completed at a predetermined position while eliminating assembly tolerance.

Accordingly, the assembly of the respective components of the rf module 200 is completed in a simple manner by each feed-through pin coupling, and at the same time, even if the rf module 200 itself is connected to the front surface of the main board 170, as described above, since it is made by a simple operation called pin coupling, the assemblability of the whole can be greatly improved.

As described above, the antenna device 100 according to an embodiment of the present invention provides the existing radome of a single shape as the unit antenna cover 240 which can be separated per each rf module 200, thus effectively protecting each radiating element module 210, and easily discharging heat of the internal system of the antenna device 100 to the rear side and the entire direction including the front side, thus having an effect of greatly improving the heat radiation performance as compared to the related art.

In the above, an embodiment of an antenna radio frequency module and an antenna device including the same according to the present invention is described in detail with reference to the accompanying drawings. However, the embodiments of the present invention are not necessarily limited to the above-described embodiments, and various modifications and implementations may be made within the scope and range of equivalents as will be apparent to those skilled in the art to which the present invention pertains. Accordingly, the actual scope of the invention is to be defined in the following claims.

Industrial applicability

The invention provides an antenna radio frequency module, a radio frequency module assembly and an antenna device comprising the same, which can solve the difficulty in heat dissipation design of the front side of a radiation element in the prior art by configuring the radiation element module and the radio frequency element to be completely separated from a main board and exposed to the outside air in front.

Claims (25)

1. An antenna radio frequency module, comprising:

the radio frequency filter is arranged on the front surface of the main board;

the radiation element module is arranged on the front surface of the radio frequency filter;

at least one reflection grating sheet disposed between the radio frequency filter and the radiating element module, and allowing external air to flow in from a front side to a rear side of the radio frequency filter or allowing external air to flow out from the rear side to the front side of the radio frequency filter while grounding the radiating element module; and

an antenna cover coupled to a front surface of the radio frequency filter for protecting the radiating element module from an external influence.

2. The antenna radio frequency module of claim 1, wherein,

the at least one reflective grating sheet is integrally formed with the radio frequency filter.

3. The antenna radio frequency module of claim 1, wherein,

The RF filter includes a filter body having a plurality of cavities formed to open toward a front side, and resonance rods respectively provided inside the cavities,

the reflection grating sheet extends in an outer side direction of upper, lower, left and right sides along a front end frame of the filter body, and is disposed and formed to have a predetermined separation distance, respectively.

4. The antenna radio frequency module of claim 3 wherein,

the reflection grating sheet performs a reflection function together with an outer panel provided to shield the front surface of the filter body.

5. The antenna radio frequency module of claim 3 wherein,

the distance between the reflecting grating sheets is set by considering the set distance of the radiating elements included in the radiating element module.

6. The antenna radio frequency module of claim 1, wherein,

the radio frequency filter and the reflection grating are manufactured as one body by a die casting process using a metal component molding material.

7. The antenna radio frequency module of claim 1, wherein,

a part of the reflection grating sheets are formed to overlap with the reflection grating sheets formed in the adjacent radio frequency filter in the left-right direction.

8. The antenna radio frequency filter of claim 1, wherein,

some of the reflection grating pieces are formed to extend so as to form a straight line in the up-down direction with the reflection grating pieces of the radio frequency filter formed adjacent in the up-down direction.

9. The antenna radio frequency module according to claim 7 or 8, wherein,

the distance between the reflecting grating sheets is set to have a range of more than 1/20λ of the operating frequency and less than 1/20λ of the operating frequency.

10. The antenna radio frequency module of claim 1, wherein,

the radio frequency filter includes:

a filter body having a plurality of cavities formed to be opened toward the front side;

the resonant rods are respectively arranged in the cavities; and

a filter outer panel provided to shield a front surface of the filter body,

the radiating element module is disposed and bonded to an inner side of the filter body to cover a front surface of the filter outer panel.

11. The antenna radio frequency module of claim 10, wherein,

the antenna cover conceals the radiating element module from the outside and is coupled to the filter body.

12. The antenna radio frequency module of claim 1, wherein,

The radiating element module includes:

a printed circuit board for a radiation element, which is arranged on the front surface of the radio frequency filter in a clinging way, and is printed with an antenna patch circuit part and a power line, wherein the antenna patch circuit part generates at least one polarized wave of dual polarized waves; and

a radiation guide formed of a conductive metal material and electrically connected to the antenna patch circuit portion of the printed circuit board for radiating element,

the radiation guide is connected to the printed circuit board for the radiating element after being detachably coupled to the back surface of the antenna cover.

13. The antenna radio frequency module of claim 12, wherein,

a plurality of coupling protrusions are formed protruding to the rear side at the rear surface of the antenna cover, the plurality of coupling protrusions being coupled with the radiation guide,

a plurality of coupling holes are penetratingly formed at the radiation guide front and rear so that the plurality of coupling protrusions penetrate and couple.

14. The antenna radio frequency module of claim 1, further comprising:

an amplifying element module disposed between the main board and the RF filter and mounted with at least one analog amplifying element,

The amplifying element module includes:

an amplifying unit body having a substrate installation space opened at one side or the other side in the width direction;

the amplifying part substrate is arranged in the amplifying part body, the front end part of the frame is connected with the radio frequency filter through signals, and the rear end part of the frame is connected with the main board through signals; and

and the amplifying part cover is used for covering the amplifying part substrate.

15. The antenna radio frequency module of claim 14, wherein,

the amplifying part substrate is combined with the radio frequency filter feed-through pin by taking a feed-through pin terminal as a medium, and is combined with the main board plug pin.

16. The antenna radio frequency module of claim 15, wherein,

the amplifying part substrate is provided with at least one male part for being combined with the main board plug pin.

17. The antenna radio frequency module of claim 14, wherein,

the amplifying part substrate is closely combined with the inner side surface of the amplifying part body,

the outer side surface of the amplifying part body is integrally formed with a plurality of amplifying part radiating fins for radiating heat generated from the amplifying part substrate to an external space.

18. The antenna radio frequency module of claim 1, wherein,

The radio frequency filter and the radiating element module are connected by a feed-through pin by taking a feed-through pin terminal as a medium.

19. An antenna radio frequency module assembly, comprising:

the plurality of radio frequency filters are arranged on the front surface of the main board;

the plurality of radiating element modules are respectively arranged on the front surfaces of the plurality of radio frequency filters;

at least one reflection grating sheet provided between the plurality of radio frequency filters and the plurality of radiating element modules, respectively, and allowing external air to flow in from a front side to a rear side of each of the plurality of radio frequency filters or allowing external air to flow out from a rear side to a front side of the radio frequency filters while grounding the radiating element modules; and

a plurality of antenna covers coupled to a front surface of each of the plurality of radio frequency filters for protecting the plurality of radiating element modules from external influences.

20. An antenna device, comprising:

a main board on the front or back of which at least one digital element is mounted;

a rear case formed in a box shape such that a front side of a mounting space for mounting the main board is opened;

a front housing shielding a front side of an opening of the rear housing, configured to divide an installation space and an external space of the rear housing; and

The radio frequency module component is arranged on the front side of the front shell and is connected to the main board through an electric signal wire,

the radio frequency module assembly includes:

the plurality of radio frequency filters are arranged on the front surface of the main board;

a plurality of radiating element modules disposed on a front side of each of the radio frequency filters;

at least one reflection grating sheet provided between the plurality of radio frequency filters and the radiating element module, respectively, and allowing external air to flow in from a front side to a rear side of each of the radio frequency filters or allowing external air to flow out from a rear side to a front side of each of the radio frequency filters while grounding the radiating element module; and

a plurality of antenna covers coupled to a front surface of each of the plurality of radio frequency filters for protecting the plurality of radiating element modules from external influences.

21. The antenna device of claim 20, further comprising:

a surge plate portion disposed at an interval from a rear side of the main board in an installation space of the rear case and disposed closely to a front surface of the rear case; and

a PSU plate section provided to have the same front face as the main board in the mounting space of the rear housing, and provided on an upper side of the main board,

The surge plate portion and the PSU plate portion, and the PSU plate portion and the motherboard are electrically connected with at least one bus bar as a medium, respectively.

22. The antenna device of claim 21, further comprising:

an RFIC substrate part which is arranged at intervals with the front side of the main board in the installation space of the rear housing and is closely attached with the back surface of the front housing,

the RFIC substrate part is provided with an RFIC element, and the RFIC element corresponds to an FPGA element mounted on the main board.

23. The antenna device according to claim 22, wherein,

heat generated from the RFIC element is dissipated by thermal conduction in thermal contact with the front housing surface.

24. The antenna device according to claim 21, wherein,

the front ends of the plurality of radio frequency modules are located at positions further spaced apart from the front side of the bezel of the front housing,

and the antenna device further includes at least one ventilation plate coupled to the rim portion of the front case and provided in a shape surrounding sides of the plurality of radio frequency modules.

25. The antenna device according to claim 24, wherein,

a plurality of ventilation holes having a predetermined size are formed in the ventilation board.