CN116454609A - Miniaturized low frequency base station antenna - Google Patents

Abstract

The application discloses a miniaturized low frequency base station antenna comprising an antenna and a dust collecting device; the antenna comprises a base; the base is configured to be rectangular and forms a rectangular groove, the side edge of the groove is concave to form a long groove, and the long groove extends along the length direction of the groove; the side wall of the long groove penetrates through the outside to form a second chip removal groove; the connecting rod is arranged in the groove; the dust collecting device is mainly arranged in the second chip groove and connected with the connecting rod, the dust collecting device is controlled to collect dust when the connecting rod moves up and down, the effect of automatically collecting dust is achieved when the antenna is cooled and the dust is cleaned, and the influence of dust overflow on the environment is avoided.

Description

Miniaturized low frequency base station antenna

Technical Field

The present application relates to the field of antennas, and in particular, to a miniaturized low frequency base station antenna.

Background

With the rapid development of wireless communication, the number of frequency spectrums is continuously increased, the scale and the number of base stations are continuously increased, and the problems of site difficulty, inconvenient installation and the like are increasingly apparent. As a key device for wireless access, multi-frequency multi-system and miniaturization of base station antennas are the main development directions. The low frequency band of the multi-frequency antenna may include a GSM900 band operating at 880-960 MHz, and the low frequency band may further include a 800M band operating at 790-880 MHz, and a 700M band operating at 694-790 Mhz. The high frequency band of the multi-frequency antenna may include a GSM1800 band operating at 1710-1880 MHz, a UMTS band operating at 1920-2170 MHz, an LTE2600 band operating at 2500-2700 MHz, and a TDD 3.5G band operating at 3.3-3.8G;

due to the shortage of site resources, the multi-frequency multi-system antenna must be miniaturized, one antenna achieves all frequency bands, and the size cannot be increased greatly. However, the antenna is difficult to realize, and serious coupling interference exists between the radiation units in different frequency bands, so that the radiation performance is deteriorated, and the network performance is seriously affected, wherein the influence is obvious that the interference of the low-frequency band radiation unit on the high-frequency radiation performance is obvious. In the prior art, cross vibrators are mostly adopted for nested array, but the problems of larger size, complicated feed and the like exist, and the cost is higher;

for example, the low-frequency radiation unit and the base station antenna of the patent number comprise a reflecting plate, wherein a plurality of high-frequency radiation units and a plurality of low-frequency radiation units are distributed on the reflecting plate, and the low-frequency radiation units are inserted in the middle of the high-frequency radiation units in a nested manner;

in the structure, the reflecting plate is arranged, so that the surface of the reflecting plate is easy to deposit dust in the long-term use process of the antenna, and the normal use of the antenna is influenced; in the prior art, the cleaning machine is only cleaned manually at regular intervals, so that the working hours are wasted, and the cleaning machine is troublesome;

there is no low frequency radiating element and antenna with improved stability of antenna use that can automatically clean and collect dust.

Disclosure of Invention

The content of the present application is intended to introduce concepts in a simplified form that are further described below in the detailed description. The section of this application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

In order to solve the technical problems mentioned in the background section above, some embodiments of the present application provide a low frequency radiating element comprising a dielectric substrate, a radiator and a feed balun; the radiator comprises two dipoles which are distributed in an orthogonal mode, the dipoles are distributed and placed in the +/-45-degree direction of the medium substrate respectively, radiating arms of the two dipoles are composed of a vertical line and a horizontal line respectively and form a cross line together, the tail ends of the vertical line and the horizontal line are connected through an arc line, and a plurality of sections of bending lines are arranged in the middle of the arc line; the feed balun is of an orthogonal structure, the bottom of the feed balun is connected with a feed network, and the top of the feed balun is connected with a radiator;

a miniaturized low frequency base station antenna includes an antenna and a dust collecting device; the antenna comprises a base; the base is configured to be rectangular and forms a rectangular groove, the side edge of the groove is concave to form a long groove, and the long groove extends along the length direction of the groove; the side wall of the long groove penetrates through the outside to form a second chip removal groove; the connecting rod is arranged in the groove;

the dust collecting device is mainly arranged in the second chip groove and connected with the connecting rod, the dust collecting device is controlled to collect dust when the connecting rod moves up and down, the effect of automatically collecting dust is achieved when the antenna is cooled and the dust is cleaned, and the influence of dust overflow on the environment is avoided.

Preferably, the dust collecting device comprises a guide hole, a traction rope, a rotating roller, a coil spring, a rubber layer, a connecting block, a collecting layer and a felt layer; the rotary roller is rotationally connected to the opening of the second chip groove, a coil spring is connected between the rotary roller and the groove, a rubber layer is arranged on the outer side of the rotary roller, a felt layer is arranged at the contact position of the bottom of the groove and the rubber layer, a collecting layer in contact with the rubber layer is arranged in the second chip groove, the collecting layer can be slidably connected with the second chip groove, guide holes are formed in the groove at two sides of the connecting rod, a traction rope is arranged in the guide holes in a penetrating mode, one end of the traction rope is connected with the connecting rod, and the other end of the traction rope is connected with the connecting block connected with the rubber layer; when the connecting rod moves, the connecting block is pulled by the traction rope to drive the roller to rotate so that the rubber layer rubs against the felt layer, electrons are negatively charged, the function of adsorbing dust is achieved, the roller further rotates to adsorb the dust, one surface of the dust is contacted with a sticky collecting layer, the dust is effectively collected, the dust is conveniently collected by sliding the collecting layer, the collecting layer is conveniently taken out to collect the dust, and the effect of automatically collecting the dust is achieved when the antenna is cooled and the dust is cleaned, so that the environment is prevented from being influenced by dust overflow.

A miniaturized low frequency base station antenna comprising:

a base configured to be rectangular and to form a rectangular recess;

the high-frequency radiation unit is arranged at the bottom of the groove;

the high-frequency radiating units and the low-frequency radiating units are nested and inserted in the middle of the high-frequency radiating units;

the antenna further comprises:

a chassis forming a mounting platform for supporting the low frequency radiating units;

the air pipe is arranged in the base;

the movable pipe is movably arranged at the bottom of the groove and is communicated with the air pipe;

the rotating pipe is rotatably arranged at the top of the moving pipe;

the rotating mechanism is used for driving the rotating pipe to rotate;

the side wall of the rotary pipe is provided with a plurality of air injection holes, and the injection track of each air injection hole is staggered; the moving tube and the rotating tube are provided with a plurality of moving tubes and are uniformly arranged along the extension direction of the air tube and positioned between the plurality of high-frequency radiating units and the plurality of low-frequency radiating units;

when in use, dust is formed in the grooves along with the time; at the moment, ventilation is carried out in the air pipe, the moving pipe moves upwards to enable the air spraying holes to be positioned on the surface of the groove, and at the moment, dust on the bottom surface of the groove is blown away by air sprayed out of the air spraying holes; in addition, the rotary mechanism drives the rotary pipe to start rotating, so that air flow is blown to the bottom surface of the groove more uniformly, and the cleaning effect is improved.

Further, the bottom part of the groove forms a chute towards the inward concave part of the air pipe direction;

the central position part of the bottom of the chute is protruded to form a fixed column;

the top end part of the fixed column penetrates through the air pipe to form a through hole so that the air pipe is communicated with the sliding groove;

forming a limit strip of the fixed column, wherein the limit strip extends along the axial direction of the fixed column; the extension length is consistent with the distance from the upper end surface of the fixed column to the bottom surface of the groove;

the inner wall of the moving tube is attached to the outer wall of the fixed column, and the inner wall of the moving tube is partially protruded and inserted into the limit strip so that the moving tube can slide along the extending direction of the limit strip.

Further, the rotary pipe is formed with a slot communicating with the through hole;

the grooving is provided with an arc top which is positioned at the upper right upper end of the through hole;

the side wall of the slot is an inclined plane, and is a large end close to the arc top and a small end close to the through hole;

the side walls of the grooves are provided with air injection holes.

Further, the rotation mechanism includes:

the wind wheel is rotatably arranged on the inner wall of the through hole;

one end of the telescopic rod is fixedly connected to the wind wheel, and the other end of the telescopic rod is fixedly arranged on the inner wall of the arc top;

the connecting rods are respectively connected with a plurality of moving pipes positioned in the grooves;

the electronic telescopic rod is fixedly connected with the connecting rod at the telescopic end and is used for driving the connecting rod to move up and down;

the electronic telescopic rod is provided with a timer, and the opening and closing time of the electronic telescopic rod is simultaneously switched on and off with the air pump in the air pipe.

Further, a bracket for supporting the low-frequency radiation unit is fixedly arranged on the mounting platform;

the bracket consists of a column body and a plate body; the column body is positioned at the center of the mounting platform; the plate bodies are uniformly distributed along the circumferential direction of the column body so that the plate bodies are cross-shaped;

wherein, form the breather pipe with the trachea intercommunication in living body, the shower nozzle is evenly seted up to the inner wall of breather pipe, and the spraying direction of this shower nozzle is directional low frequency radiation unit.

Further, the upper end surface of the rotary pipe forms a top plate which completely covers the sliding groove;

the top plate is embedded into the groove, and the upper end surface of the top plate is flush with the bottom surface of the groove;

the rotating tube protrudes away from the bottom surface of the groove and is inserted into the upper end surface of the moving tube so that the rotating tube can rotate with the axial direction of the moving tube as a rotation axis.

Further, the bottom of the groove is provided with a boss in a protruding mode at the center of the rectangular ring groove, and the upper end face of the boss penetrates through the air pipe to form a connecting hole;

the cylinder is abutted against the surface of the boss so as to enable the vent pipe to be in butt joint with the connecting hole;

the connecting hole is communicated with the vent pipe, and a sealing piece is arranged at the joint of the connecting hole and the vent pipe;

wherein the sealing element is a rubber ring.

Further, two opposite side walls of the rectangular ring groove are provided with butt joint grooves;

the chassis is fixedly provided with a mounting plate which is inserted into the rectangular ring groove; the insertion part forms a clamping block corresponding to the butt joint groove;

wherein, the butt joint inslot wall is equipped with the buckle, and the fixture block is equipped with the draw-in groove that corresponds with the buckle.

Further, the side wall part of the rectangular ring groove, which is not provided with the butt joint groove, penetrates through to form a first chip removal groove;

the side of the groove is concaved into a long groove, and the long groove extends along the length direction of the groove;

the side wall of the long groove penetrates through the outside to form a second chip removing groove.

The beneficial effects of this application lie in: a miniaturized low-frequency base station antenna is provided which can automatically clean dust and improve the cleaning ability of the antenna.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic of embodiment 1 according to the present application;

fig. 2 is a schematic structural view of a part of embodiment 1, mainly showing the structure of a low-frequency radiating element;

fig. 3 is a schematic structural view of a part of embodiment 1, mainly showing the structure of the base;

FIG. 4 is a schematic structural view of a part of embodiment 1, mainly showing a semi-cut structure of the base;

fig. 5 is a schematic structural view of a part of embodiment 1, mainly showing the structure of the installation of the connecting rod and the moving tube;

fig. 6 is a schematic structural view of a part of embodiment 1, mainly showing the structure of the chassis;

FIG. 7 is a schematic structural view of a part of embodiment 1, mainly showing the structure of the chassis in half section;

fig. 8 is an enlarged view of a portion a of fig. 3;

FIG. 9 is an enlarged view of the portion B of FIG. 4

Fig. 10 is an enlarged view of a portion C of fig. 4;

fig. 11 is an enlarged view of a portion D of fig. 5;

fig. 12 is a schematic structural view of a part of embodiment 1, mainly showing the structure of a chute;

fig. 13 is a schematic structural view of a part of embodiment 1, mainly showing the structure of a bracket;

fig. 14 is a main structural schematic diagram of a dust collecting device of embodiment 2;

fig. 15 is an enlarged view of the portion E of fig. 14.

Reference numerals:

100. 10, a dielectric substrate; 20. radiator, vertical line, 202, horizontal line; 203. an arc line; 204. bending the circuit;

1. a base; 11. a groove; 111. 1110, butt joint groove; 1111. inclined plane 1112, buckle; 112. a boss; 113. a connection hole; 114. 115, fixing column; 1151. a limit bar;

200. a high-frequency radiation unit;

2. a chassis; 21. mounting platform 22, support; 221. a column; 2210. a vent pipe; 2212. a spray head; 222. a plate body; 23. a mounting plate; 24. a clamping block;

3. an air pipe;

4. a seal;

5. a moving tube;

6. a rotating tube; 61. a top plate; 62. slotting; 621. arc top; 622. bevel angle; 63. a gas injection hole;

7. a rotation mechanism; 71. a wind wheel; 72. a telescopic rod; 73. a connecting rod; 74. an electronic telescopic rod;

8. a first junk slot; 81. a long groove; 811. a second junk slot;

9. a dust collection device; 91. a guide hole; 92. a traction rope; 93. a rotating roller; 94. a coil spring; 95. a rubber layer; 96. a connecting block; 97. a collection layer; 98. felt layer.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A low frequency radiating element 100 comprising a dielectric substrate 10, a radiator 20 and a feed balun; the radiator 20 comprises two dipoles which are distributed orthogonally and are distributed and placed in the +/-45-degree direction of the medium substrate 10, the radiation arms of the two dipoles are respectively composed of a vertical line 201 and a horizontal line 202 and form a cross line together, the tail ends of the vertical line 201 and the horizontal line 202 are connected through an arc line 203, and a plurality of sections of bending lines 204 are arranged in the middle of the arc line 203; the feed balun is in an orthogonal structure, the bottom of the feed balun is connected with a feed network, and the top of the feed balun is connected with the radiator 20.

An antenna mounted with a low frequency radiating element 100, comprising: a base 1, a high-frequency radiating unit 200, and a low-frequency radiating unit 100;

the base 1 is configured to be rectangular, and forms a rectangular groove 11, and the base 1 is a reflecting plate;

wherein, a plurality of high frequency radiating elements 200 and a plurality of low frequency radiating elements 100, the low frequency radiating elements 100 are nested in the middle of the high frequency radiating elements 200;

the antenna further comprises: chassis 2, air pipe 3, moving pipe 5, rotating pipe 6 and rotating mechanism 7;

the chassis 2 forms a mounting platform 21 for supporting the low frequency radiating units; an air pipe 3 is paved in the base 1, an air supply device is arranged at the end part of the air pipe 3, and air pressure is given to the air pipe 3 by the air supply device; more specifically, a bracket 22 for supporting the low frequency radiation unit 100 is fixedly provided on the mounting platform 21; the bracket 22 is composed of a column 221 and a plate 222; wherein the cylinder 221 is located at the center of the mounting platform 21; the plate bodies 222 are uniformly distributed along the circumferential direction of the cylinder 221 such that the plate bodies 222 are cross-shaped; wherein, a vent pipe 2210 communicated with the air pipe 3 is formed in the cylinder 221, and the inner wall of the vent pipe 2210 is uniformly provided with a spray head 2212; preferably, the spray direction of the spray head 2212 is directed toward the low frequency radiating unit 100 and toward the high frequency radiating unit 200; because the spraying direction of the spray head 2212 points to the low-frequency radiation unit 100, the air flow in the air pipe 3 can be sprayed to the low-frequency radiation unit 100 and the high-frequency radiation unit 200 during cleaning, and the automatic cleaning function is realized; in addition, the damage to the element can be reduced by cleaning in the form of blowing; the cleaning stability is improved.

More specifically, the bottom of the groove 11 is provided with a rectangular ring groove 111, the cross section of the rectangular ring groove 111 is rectangular, and the rectangular ring groove 111 is positioned above the air pipe 3; a boss 112 is formed by protruding a part positioned at the center of the rectangular ring groove 111, and a connecting hole 113 is formed by penetrating a part positioned at the upper end surface of the boss 112 to the air pipe 3; the cylinder 221 is abutted against the surface of the boss 112 so that the vent pipe 2210 is abutted with the connection hole 113; the connecting hole 113 is communicated with the breather pipe 2210, and a sealing piece 4 is arranged at the joint of the connecting hole 113 and the breather pipe 2210; wherein the sealing element 4 is a rubber ring; two opposite side walls of the rectangular ring groove 111 are provided with a butt joint groove 1110, and an oblique angle 622 is formed inside the butt joint groove 1110; the chassis 2 is fixedly provided with two mounting plates 23, and the mounting plates 23 are inserted into the rectangular ring grooves 111; the distance between the two mounting plates 23 is greater than the width of the rectangular ring groove 111; the two mounting plates 23 have elasticity, and when the two mounting plates 23 are inserted into the rectangular ring groove 111, the two mounting plates 23 generate opposite elasticity so that the mounting plates 23 are fixed on the rectangular ring groove 111; and the insertion portion forms a latch block 24 corresponding to the docking slot 1110; preferably, the surface of the mounting plate 23 is also provided with an arch-shaped groove; the provision of the arcuate groove can improve the supporting force for the low frequency radiating element 100 and improve the stability.

More specifically, the inner wall of the docking slot 1110 is provided with a buckle 1112, and the clamping block 24 is provided with a clamping slot corresponding to the buckle 1112; when the clamping block 24 is inserted into the docking slot 1110, the inclined surface 1111 will collide with the clamping block 24; simultaneously, the buckle 1112 is embedded into the clamping groove 1113, so that limit is formed; due to the arrangement of the inclined surface 1111 and the buckle 1112, the buckle 1112 can always drive the boss 112 to be attached to the cylinder 221 when in use, so that the tightness of the sealing element 4 is improved, and air leakage is prevented; the effect of cleaning the low frequency radiating element is improved.

More specifically, a concave portion of the bottom portion of the groove 11 toward the air pipe 3 forms a chute 114; a bottom center portion of the chute 114 is protruded to form a fixing column 115; the side wall of the fixed column 115 forms a limit bar 1151, and the limit bar 1151 extends along the axial direction of the fixed column 115; and the extension length is consistent with the distance from the upper end surface of the fixed column 115 to the bottom surface of the groove 11; the inner wall of the moving tube 5 is attached to the outer wall of the fixed column 115, and the inner wall of the moving tube 5 is partially protruded and inserted into the limit bar 1151 so that the moving tube 5 can slide along the extending direction of the limit bar 1151;

more specifically, the rotary tube 6 is protruded away from the bottom surface portion of the recess 11 and inserted into the upper end surface of the moving tube 5 so that the rotary tube 6 can be rotated about the axial direction of the moving tube 5 as a rotation axis; the upper end surface of the rotary pipe 6 forms a top plate 61, and the top plate 61 completely covers the sliding groove 114; the top plate 61 is embedded in the groove 11, and the upper end surface of the top plate 61 is flush with the bottom surface of the groove 11; the top end of the fixing column 115 is formed with a through hole penetrating the air tube 3 to allow the air tube 3 to communicate with the chute 114; when the cleaning is not carried out, the rotary pipe 6 can be hidden at the bottom of the groove 11, so that on one hand, the rotary pipe is more attractive, and on the other hand, the interference on the normal and practical use of the element can be reduced;

more specifically, the rotary tube 6 is formed with a slot 62 communicating with the through hole; the slot 62 has a circular arc top 621, the circular arc top 621 is located at the upper right upper end of the through hole; the side wall of the slot 62 is an inclined plane 1111, and is close to the large end of the circular arc top 621, and is close to the small end of the through hole; the side wall of the rotary pipe 6 is provided with a plurality of air injection holes 63, and the injection track of each air injection hole 63 is arranged in a staggered way; the moving tube 5 and the rotating tube 6 are provided in a plurality, are uniformly arranged along the extension direction of the air tube 3, and are positioned between the plurality of high-frequency radiating units 200 and the plurality of low-frequency radiating units 100;

more specifically, a rotating mechanism 7 is arranged in the through hole and is used for driving the rotating pipe 6 to rotate;

the rotation mechanism 7 includes: wind wheel 71, telescopic rod 72, connecting rod 73, electronic telescopic rod 74;

the outer ring wall of the wind wheel 71 is embedded into the inner wall of the through hole, so that the wind wheel 71 is rotatably arranged on the inner wall of the through hole; one end of the telescopic rod 72 is fixedly connected to the wind wheel 71, and the other end of the telescopic rod is fixedly connected to the inner wall of the circular arc top 621; the connecting rods 73 are respectively connected with a plurality of moving pipes 5 positioned in the grooves 11; an electronic telescopic rod 74, wherein the telescopic end is fixedly connected with a connecting rod 73 and is used for driving the connecting rod 73 to move up and down; the electronic telescopic rod 74 is provided with a timer, and the opening and closing time of the electronic telescopic rod 74 and the air pump in the air pipe 3 are simultaneously opened and closed.

More specifically, the side wall portion of the rectangular ring groove 111 where the abutting groove 1110 is not provided is penetrated to form the first junk slot 8; the side of the groove 11 is concave to form a long groove 81, and the long groove 81 extends along the length direction of the groove 11; the side wall of the long groove 81 penetrates through the outside to form a second chip removing groove 811; so that dust on the surface of the groove 11 can be blown into the second chip groove 811 and the first chip groove 8 when cleaning is performed; in addition, since the second chip groove 811 is located on the side wall of the long groove 81, a reverse flow phenomenon is not caused when dust is discharged, and the cleaning ability is improved.

Example 2:

a miniaturized low frequency base station antenna comprises an antenna and dust collection means 9; the antenna comprises a base 1; the base 1 is configured to be rectangular, and forms a rectangular groove 11, the side of the groove 11 is concavely provided with a long groove 81, and the long groove 81 extends along the length direction of the groove 11; the side wall of the long groove 81 penetrates through the outside to form a second chip removing groove 811; further comprising a connecting rod 73, said connecting rod 73 being arranged in said recess 11;

the dust collecting device 9 is mainly arranged in the second chip removing groove 811 and connected with the connecting rod 73, when the connecting rod 73 moves up and down, the dust collecting device 9 is controlled to collect dust, and the effect of automatically collecting dust is achieved when the antenna is cooled and the dust is cleaned, so that the influence of dust overflow on the environment is avoided.

Specifically, the dust collecting device 9 includes a guide hole 91, a hauling rope 92, a roller 93, a coil spring 94, a rubber layer 95, a connection block 96, a collection layer 97, and a felt layer 98; the rotary roller 93 is rotatably connected to the opening of the second chip groove 811, the coil spring 94 is connected between the rotary roller 93 and the groove 11, a rubber layer 95 is arranged on the outer side of the rotary roller 93, a felt layer 98 is arranged at the contact position of the bottom of the groove 11 and the rubber layer 95, a collecting layer 97 in contact with the rubber layer 95 is arranged in the second chip groove 811, the collecting layer 97 can be slidably connected with the second chip groove 811, the guide holes 91 are arranged on two sides of the connecting rod 73 in the groove 11, the traction ropes 92 penetrate through the guide holes 91, one ends of the traction ropes 92 are connected with the connecting rod 73, and the other ends of the traction ropes 92 are connected with the connecting blocks 96 connected with the rubber layer 95; when connecting rod 73 removes, draw connecting block 96 through haulage rope 92 and drive roller 93 and rotate and make rubber layer 95 friction felt layer 98, obtain the electron and take negatively, have the function of adsorbing the dust, roller 93 further rotates the one side of adsorbing the dust and runs into the collecting layer 97 that has the viscidity, effectively collect the dust, through the slip setting of collecting layer 97, conveniently take out collecting layer 97 and collect the dust, when cooling for the antenna and clearance dust, play the effect of automatic collection dust, avoid the dust to overflow and influence the environment.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims (7)

1. A miniaturized low frequency base station antenna, characterized by: comprises an antenna and a dust collecting device; the antenna comprises a base; the base is configured to be rectangular and forms a rectangular groove, the side edge of the groove is concave to form a long groove, and the long groove extends along the length direction of the groove; the side wall of the long groove penetrates through the outside to form a second chip removal groove; the connecting rod is arranged in the groove;

the dust collecting device is mainly arranged in the second chip removing groove and connected with the connecting rod, and is controlled to collect dust when the connecting rod moves up and down;

the dust collecting device comprises a guide hole, a traction rope, a rotating roller, a coil spring, a rubber layer, a connecting block, a collecting layer and a felt layer; the roller rotates to be connected the opening part of second chip groove, the roller with be connected with between the recess the coil spring, the roller outside is equipped with the rubber layer, the recess bottom with the position of rubber layer contact is equipped with felt layer, the inside of second chip groove be equipped with the collecting layer of rubber layer contact, the collecting layer can with second chip groove sliding connection, the guiding hole sets up in the recess the both sides of connecting rod, it is equipped with to run through in the guiding hole the haulage rope, haulage rope one end is connected the connecting rod, the other end is connected with the connecting block that the rubber layer is connected.

2. A miniaturized low frequency base station antenna according to claim 1, characterized in that: the low-frequency radiating device comprises a low-frequency radiating unit, a low-frequency radiating unit and a high-frequency radiating unit, wherein the low-frequency radiating unit comprises a dielectric substrate, a radiator and a feed balun; the radiator comprises two dipoles which are distributed in an orthogonal mode, the dipoles are distributed and placed in the +/-45-degree direction of the medium substrate respectively, radiating arms of the two dipoles are composed of a vertical line and a horizontal line respectively and form a cross line together, the tail ends of the vertical line and the tail ends of the horizontal line are connected through an arc line, and a plurality of sections of bending lines are arranged in the middle of the arc line; the feed balun is of an orthogonal structure, the bottom of the feed balun is connected with a feed network, and the top of the feed balun is connected with the radiator.

3. A miniaturized low frequency base station antenna according to claim 1, characterized in that:

the device comprises a base, a base and a base, wherein the base is configured to be rectangular and forms a rectangular groove;

the high-frequency radiation unit is arranged at the bottom of the groove;

wherein, a plurality of high-frequency radiating units 400 and a plurality of said low-frequency radiating units 100, the low-frequency radiating units 100 are nested in the middle of the high-frequency radiating units 400;

the method is characterized in that:

the antenna further comprises:

a chassis forming a mounting platform for supporting the low frequency radiating unit;

the air pipe is arranged in the base;

the movable pipe is movably arranged at the bottom of the groove and is communicated with the air pipe;

the rotating pipe is rotatably arranged at the top of the moving pipe;

the rotating mechanism is used for driving the rotating pipe to rotate;

the side wall of the rotary pipe is provided with a plurality of air injection holes, and the injection track of each air injection hole is staggered; the moving tube and the rotating tube are provided with a plurality of moving tubes, are uniformly arranged along the extension direction of the air tube, and are positioned between the high-frequency radiating units and the low-frequency radiating units.

4. A miniaturized low frequency base station antenna according to claim 3, characterized in that: the bottom part of the groove forms a chute towards the inward concave part of the air pipe direction;

the bottom center part of the chute is protruded to form a fixed column;

the top end part of the fixed column penetrates through the air pipe to form a through hole so that the air pipe is communicated with the sliding groove;

the fixed column is provided with a limiting strip, and the limiting strip extends along the axial direction of the fixed column; the extension length is consistent with the distance from the upper end face of the fixed column to the bottom face of the groove;

the inner wall of the moving pipe is attached to the outer wall of the fixed column, and the inner wall of the moving pipe is partially protruded and inserted into the limit strip so that the moving pipe can slide along the extending direction of the limit strip.

5. A miniaturized low frequency base station antenna according to claim 4, characterized in that:

the upper end face of the rotary pipe forms a top plate which completely covers the sliding groove;

the top plate is embedded into the groove, and the upper end face of the top plate is flush with the bottom face of the groove;

the rotating pipe is protruded away from the bottom surface of the groove and inserted into the upper end surface of the moving pipe, so that the rotating pipe can rotate by taking the axial direction of the moving pipe as a rotating shaft.

6. A miniaturized low frequency base station antenna according to claim 5, characterized in that:

the rotary pipe is provided with a slot communicated with the through hole;

the slot is provided with an arc top which is positioned at the upper right upper end of the through hole;

the side wall of the slot is an inclined plane, and is a large end close to the arc top and a small end close to the through hole;

the side walls of the grooves are provided with the air injection holes.

7. A miniaturized low frequency base station antenna according to claim 6, characterized in that:

the rotation mechanism includes:

the wind wheel is rotatably arranged on the inner wall of the through hole;

one end of the telescopic rod is fixedly connected to the wind wheel, and the other end of the telescopic rod is fixed on the inner wall of the arc roof;

the connecting rods are respectively connected with the plurality of moving pipes positioned in the grooves;

the electronic telescopic rod is fixedly connected with the connecting rod at the telescopic end and used for driving the connecting rod to move up and down;

the electronic telescopic rod is provided with a timer, and the opening and closing time of the electronic telescopic rod is simultaneously switched on and off with the air pump in the air pipe.