Antenna structure

Abstract

An antenna structure disclosed by the present invention comprises a support frame, a reflection plate, a feed network and a radiation plate, the support frame is fixed on the reflection plate and can provide support for the feed network, the support frame is provided with an installation cavity penetrating through two sides, the feed network can be installed in the installation cavity through an upper side opening of the installation cavity and can be limited and supported by the installation cavity, and the radiation plate is fixed on the support frame. The feed network is suspended to form an air microstrip through the support of the mounting cavity, and the feed network is protected through the limiting of the peripheral side of the feed network by the mounting cavity, so that the deformation of the feed network under external stress can be effectively avoided, and the network transmission performance of the feed microstrip line is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to an antenna structure. Background Art

[0002] In the field of 5G antennas, the radiating units (diopter) are assembled in an array on the feed network PCB board, that is, the diopter radiating units are arrayed in a certain row and column spacing and installed on the feed network PCB board. In order to reduce the power consumption of the base station, the feed network is usually suspended to form an air microstrip.

[0003] For example, a flexible structure air microstrip antenna with publication number CN116759807 includes a reflector, a plurality of radiation units and a pair of feeding microstrip lines, each radiation unit includes an insulating support and a vibrator connected to the insulating support, two feeding pins are provided on the back of the vibrator, a feeding needle is provided on the feeding microstrip line and a plurality of branches extending from the feeding needle, a pad is provided at the end of each branch, the insulating support connects the vibrator and the feeding microstrip line to the reflector, and the feeding microstrip line is supported by the insulating support to form an air microstrip, so that the microstrip line loss is smaller.

[0004] Although the existing antenna can form an air microstrip structure by supporting the feeding microstrip line through the support, the position of the feeding microstrip line without the support will bend and deform due to external force, thereby affecting the network transmission performance of the feeding microstrip line, resulting in poor network transmission performance of the feeding microstrip line. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose an antenna structure to solve the technical problem in the prior art that the feeding microstrip line of the air microstrip antenna is prone to bending and deformation, resulting in poor network transmission performance of the feeding microstrip line.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides an antenna structure, comprising: Reflective panels; A support frame, fixed to the reflector, the support frame is provided with a mounting cavity penetrating both sides, and the mounting cavity extends along the outline direction of the feed network; A feeding network is installed in the installation cavity and is spaced apart from the reflection plate. The feeding network is provided with a supporting sheet, and the supporting sheet is integrally formed with the feeding network. The radiation plate is connected to the support sheet.

[0007] In some embodiments, support platforms are provided on both side walls of the installation cavity, and the support platforms are integrally formed with the support frame. An installation groove is formed between the support platform and the two side walls of the installation cavity, and the installation groove is used to install the feeding network. The support platform is used to support the feeding network.

[0008] In some embodiments, the support platform extends toward a contour direction of the mounting cavity.

[0009] In some embodiments, a groove width of the mounting groove is greater than a width of the feeding network, so that a side wall of the mounting groove is spaced apart from the feeding network.

[0010] In some embodiments, the depth of the mounting groove is less than or equal to the thickness of the feeding network.

[0011] In some embodiments, the antenna structure further includes a plurality of connection blocks, each of which is arranged at intervals along the extension direction of the installation cavity, and both ends of each of the connection blocks are connected to two side walls of the installation cavity.

[0012] In some embodiments, the antenna structure also includes a plurality of fixing parts, each of which is arranged on the support frame at intervals along the extension direction of the support frame, one end of the fixing part is connected to the support frame in a liftable manner, and the other end of the fixing part radially extends to the top of the installation cavity, and is used to limit the feeding network by pressing the feeding network.

[0013] In some embodiments, the fixing member is made of a dielectric material.

[0014] In some embodiments, a plurality of mounting protrusions are provided in the extension direction of the support structure, each of the mounting protrusions is provided with a connecting hole, and each of the fixing members is connected to the connecting hole.

[0015] In some embodiments, each of the mounting protrusions is disposed on the outer side of the support frame.

[0016] Compared with the prior art, the antenna structure provided by the present invention includes a support frame, a reflector, a feed network and a radiation plate. The support frame can provide support for the feed network by being fixed to the reflector. The support frame is provided with an installation cavity running through both sides. The feed network can be installed in the installation cavity through the upper opening of the installation cavity. The installation cavity can be used to limit and support the feed network. Through the support of the installation cavity, the feed network is suspended to form an air microstrip. The installation cavity limits the surrounding side of the feed network to provide protection for the feed network, which can effectively prevent the feed network from being deformed under external force, thereby ensuring the network transmission performance of the feed microstrip line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1is a structural schematic diagram of an antenna structure provided by an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 It is a schematic diagram of the structure of an antenna provided by an embodiment of the present invention.

[0018] Reference numerals in the figures: 10—support frame 11—installation cavity 12—support platform 13—protrusion for installation 20—connection block 30—fixing piece 40—reflection plate 50—feeding network 51—support sheet 60—radiation plate 111—installation groove 131—connection hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In order to solve the technical problem in the prior art that the feeding microstrip line of the air microstrip antenna is prone to bending and deformation, and the structure of the feeding microstrip line is easily damaged, thereby affecting the network transmission performance of the feeding microstrip line, the present embodiment provides an antenna structure, which can realize the suspended support of the feeding microstrip line while preventing the feeding microstrip line from being deformed under external force, thereby ensuring the network transmission performance of the feeding microstrip line.

[0021] An antenna structure provided by an embodiment of the present invention is as follows: Figure 3 As shown, it includes a support frame 10, a reflector 40, a feed network 50 and a radiation plate 60. The support frame 10 is fixed to the reflector 40. The support frame 10 is provided with an installation cavity 11 running through both sides. The installation cavity 11 extends along the contour direction of the feed network 50. The feed network 50 is installed in the installation cavity 11 and forms a gap with the reflector 40. The feed network 50 is provided with a support sheet 51, and the support sheet 51 is integrally formed with the feed network 50. The radiation plate 60 is connected to the support sheet 51 and is coupled with the support sheet 51.

[0022] Specifically, the antenna structure is provided with a support frame 10, and the support frame 10 is fixed to the reflector 40 to provide support for the feeding network 50. The support frame 10 is provided with an installation cavity 11 running through both sides. The feeding network 50 can be installed in the installation cavity 11 through the upper opening of the installation cavity 11, and can be limited and supported by the installation cavity 11. Through the support of the installation cavity 11, the feeding network 50 is suspended and spaced from the reflector 40, thereby forming an air microstrip. Through the limitation of the surrounding side of the feeding network 50 by the installation cavity 11, protection can be provided for the feeding network 50, thereby effectively preventing the feeding network 50 from being deformed under external force, thereby ensuring the network transmission performance of the feeding microstrip line.

[0023] In the present embodiment, since the feed network 50 is installed in the installation cavity 11, the support sheet 51 and the feed network 50 are integrally formed, and there is no need to separately fix the support sheet 51 on the feed network 50 by welding or other means after the feed network 50 is installed, so as to avoid damage and deformation of the support frame 10 due to welding of the support sheet 51, thereby facilitating the installation of the feed network 50 on the installation cavity 11, avoiding damage to the structure of the support frame 10 due to the installation of the feed network 50, reducing the installation cost of the feed network 50, speeding up the installation of the feed network 50, and avoiding structural damage to the support frame 10 due to the installation of the support sheet 51, so that it is difficult to provide a good limit for the feed network 50, thereby ensuring the network transmission performance of the feed network 50.

[0024] In this embodiment, the radiation plate 60 is welded and fixed to the upper end of the support plate 51 , and after the feed network 50 is installed and limited on the support frame 10 , the radiation plate 60 is welded to the upper end of the support plate 51 .

[0025] It can be understood that the installation cavity 11 can support the feeding network 50 through friction with the feeding network 50; or the installation cavity 11 is provided with a trapezoidal structure with a cross-sectional width gradually decreasing from top to bottom, and the cross-sectional width on the lower side of the installation cavity 11 is smaller than the width of the feeding network 50, thereby being able to provide stable support for the feeding network 50.

[0026] In this embodiment, the support frame 10 is adapted to the shape of the feeding network 50 , and the support frame 10 includes supporting walls arranged opposite to each other, and two supporting arms extending along the outer contour direction of the feeding network 50 .

[0027] In one embodiment, if Figure 1-2As shown, support platforms 12 are provided on both side walls of the installation cavity 11. The support platforms 12 are integrally formed with the support frame 10. An installation groove 111 is formed between the support platforms 12 and the two side walls of the installation cavity 11. The installation groove 111 is used to install the feeding network 50. The support platform 12 is used to support the feeding network 50. Specifically, when assembling the feed network 50, the feed network 50 is installed in the installation groove 111, and then supported by the support platform 12, so as to realize the suspended installation inside the installation cavity 11, and the support platform 12 is a planar support structure. Through the planar support of the support platform 12, the feed network 50 is suspended with the reflector 40, and the feed network 50 is always flat under the support of the support platform 12, and will not be deformed under the action of gravity. And through the limited support of the support platform 12, the feed network 50 can be limited without destroying the structure of the feed network 50 by drilling, etc. Therefore, under the planar support of the support platform 12, the structure of the feed network 50 can be effectively protected, and the transmission performance of the feed network 50 can be guaranteed. In addition, by integrally forming the support platform 12 and the support frame 10, the forming of the support platform 12 can be facilitated, and the formation of the planar structure of the support platform 12 is conducive to reducing the manufacturing cost of the support frame 10.

[0028] In this embodiment, the support frame 10 is a plastic part. The support frame 10 and the inner support platform 12 are injection molded. The support frame 10 will not interfere with the signal transmission of the feed network 50 and the manufacturing cost of the support frame 10 can be reduced.

[0029] In this embodiment, the support platform 12 is disposed on two side walls of the installation cavity 11 .

[0030] In one embodiment, if Figure 1 As shown, the support platform 12 extends in the direction of the contour of the installation cavity 11. Specifically, the support platform 12 extends in the direction of the contour of the installation cavity 11, thereby supporting various positions of the feed network 50, realizing the planar support structure of the support platform 12. Through the planar support of the support platform 12, while being suspended with the reflector 40, the feed network 50 is always flat under the support of the support platform 12, and will not be deformed under the action of gravity. Moreover, through the limited support of the support platform 12, the feed network 50 can be limited without destroying the structure of the feed network 50 by drilling, etc. Therefore, under the planar support of the support platform 12, the structure of the feed network 50 can be effectively protected, thereby ensuring the transmission performance of the feed network 50, solving the problem of deformation of the unsupported part of the feed network 50 due to gravity caused by multi-point support, and the structure of the feed network 50 will not be damaged due to multi-point support, effectively ensuring the network transmission performance of the feed network 50.

[0031] In one embodiment, if Figure 1-2As shown, the antenna structure further includes a plurality of connection blocks 20, each of which is arranged at intervals along the extension direction of the installation cavity 11, and both ends of each connection block 20 are connected to the two side walls of the installation cavity 11. Specifically, the connection blocks 20 can strengthen the structure of the support arms on both sides of the support frame 10 by being connected to the two side walls of the installation cavity 11, so as to prevent the support arms on both sides of the support frame 10 from contracting and squeezing the feed network 50 under the action of external force, causing deformation of the feed network 50, or expanding under the action of external force, so that the expanded portion cannot provide support for the feed network 50, causing deformation of the feed network 50.

[0032] In one embodiment, if Figure 1-2 As shown, the connection block 20 is flush with the surface of the support platform 12, and the connection block 20 supports the feed network 50. Specifically, the connection block 20 is flush with the surface of the support platform 12, and while the connection block 20 is connected to the two side walls of the installation cavity 11, it can also provide support for the feed network 50 together with the support platform 12 to ensure the stability of the feed network 50. Through the coordinated support of the connection block 20 and the support platform 12, even if the support frame 10 is deformed, it can always provide support for the feed network 50 to ensure the stability of the feed network 50.

[0033] In one embodiment, the slot width of the mounting slot 111 is greater than the width of the feed network 50, so that the side wall of the mounting slot 111 is spaced apart from the feed network 50. Specifically, by setting the slot width of the mounting slot 111 to be greater than the width of the feed network 50, it is possible to avoid the side wall of the mounting slot 111 from squeezing the feed network 50, and prevent the feed network 50 from being deformed under the squeezing of the side wall of the mounting slot 111, thereby ensuring the network transmission performance of the feed network 50.

[0034] In one embodiment, the depth of the mounting groove 111 is less than or equal to the thickness of the feed network 50. Specifically, the depth of the mounting groove 111 is set to be less than or equal to the thickness of the feed network 50, so that the feed network 50 can be flush with or higher than the notch of the mounting groove 111. At this time, the feed network 50 can be secured to the mounting groove 111 by only connecting and fixing rivets, screws or other locking members at the support frame 10 and pressing the feed network 50 with the heads of the rivets, screws or other locking members, thereby facilitating the locking of the feed network 50.

[0035] In this embodiment, the depth of the installation groove 111 is equal to the thickness of the feeding network 50 , so that the feeding network 50 is flush with the groove opening of the installation groove 111 .

[0036] In one embodiment, if Figure 1-3As shown, the antenna structure also includes a plurality of fixing members 30, each of which is arranged at intervals on the support frame 10 along the extension direction of the support frame 10, one end of the fixing member 30 is connected to the support frame 10 in a liftable manner, and the other end of the fixing member 30 extends radially to the top of the installation cavity 11, and is used to limit the feeding network 50 by pressing the feeding network 50. Specifically, after the feeding network 50 is installed in the installation groove 111, the lower end of the fixing member 30 is connected to the support frame 10, and the fixing member 30 is lowered, so that the upper end presses the feeding network 50, and the feeding network 50 is locked and limited. The locking of the feeding network 50 can be achieved without destroying the structure of the feeding network 50, thereby ensuring the original performance of the feeding network 50.

[0037] In this embodiment, by setting the depth of the installation groove 111 to be less than or equal to the thickness of the feed network 50, the feed network 50 is higher than or flush with the installation groove 111, so that the fixing member 30 can directly contact the feed network 50 by descending and press the feed network 50.

[0038] In this embodiment, the depth of the installation groove 111 is preferably equal to the thickness of the feeding network 50 , so that the feeding network 50 is flush with the notch of the installation groove 111 .

[0039] It can be understood that the lower end of the fixing member 30 can be connected to the support frame 10 by a threaded connection or a sliding connection.

[0040] It is understandable that the upper end of the fixing member 30 can be any shape such as circular, rod-shaped, etc. that radially extends to the top of the installation cavity 11. It only needs to provide pressure for the feeding network of the installation slot 111 by lowering the fixing member 30.

[0041] In one embodiment, if Figure 1-3 As shown, a plurality of mounting protrusions 13 are provided in the extension direction of the support structure, each mounting protrusion 13 is provided with a connection hole 131, and each fixing member 30 is connected to the connection hole 131. Specifically, the mounting protrusion 13 can provide a connection for the fixing member 30, increase the strength of the connection part of the support frame 10, and prevent the support frame 10 from being deformed or damaged due to the connection of the fixing member 30. When the fixing member 30 is connected to the mounting protrusion 13, it is only necessary to connect the fixing member 30 to the connection hole 131.

[0042] In one embodiment, the fixing member 30 is made of dielectric material.

[0043] In this embodiment, the fixing member 30 is a plastic screw. After the feeding network 50 is installed in the mounting groove 111, the plastic screw is threadedly connected to the connecting hole 131. When the plastic screw is tightened, the nut at the end of the plastic screw presses the feeding network 50 to limit the feeding network 50.

[0044] In one embodiment, if Figure 1-3 As shown, each installation protrusion 13 is arranged on the outside of the support frame 10. Specifically, by arranging the installation protrusion 13 on the outside of the support frame 10, the installation protrusion 13 will not occupy the upper space of the installation groove 111, and will not form an obstacle to the installation of the feed network 50 in the installation groove 111; and the fixing member 30 can be located at the side of the feed network 50, and the feed network 50 can be pressed and limited by the radially extending structure, and because the feed network 50 is flush with the notch of the installation groove 111, under the cooperation of the limiting of the fixing member 30 and the flushing of the notch of the feed network 50 with the installation groove 111, the stability of the feed network 50 can be ensured, and the structural damage of the feed network 50 caused by limiting the feed network 50 can be effectively avoided.

[0045] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An antenna structure, characterized in that: include: Reflective panels; A support frame, fixed to the reflector, the support frame is provided with a mounting cavity penetrating both sides, and the mounting cavity extends along the outline direction of the feed network; A feeding network is installed in the installation cavity and is spaced apart from the reflection plate. The feeding network is provided with a supporting sheet, and the supporting sheet is integrally formed with the feeding network. The radiation plate is connected to the support sheet.

2. The antenna structure according to claim 1, characterized in that: The two side walls of the installation cavity are provided with support platforms, the support platforms are integrally formed with the support frame, and installation grooves are formed between the support platforms and the two side walls of the installation cavity. The installation grooves are used to install the feed network, and the support platforms are used to support the feed network.

3. The antenna structure according to claim 2, characterized in that: The support platform extends toward the outline direction of the installation cavity.

4. The antenna structure according to claim 2, characterized in that: The groove width of the installation groove is greater than the width of the feeding network, so that a side wall of the installation groove is spaced apart from the feeding network.

5. The antenna structure according to claim 2, characterized in that: The depth of the mounting groove is less than or equal to the thickness of the feeding network.

6. The antenna structure according to claim 1, characterized in that: The antenna structure also includes a plurality of connection blocks, each of which is arranged at intervals along the extension direction of the installation cavity, and both ends of each of the connection blocks are connected to the two side walls of the installation cavity.

7. The antenna structure according to claim 2, characterized in that: The antenna structure also includes a plurality of fixing parts, each of which is arranged on the support frame at intervals along the extension direction of the support frame, one end of the fixing part is connected to the support frame in a liftable manner, and the other end of the fixing part radially extends to the top of the installation cavity, and is used to limit the feeding network by pressing the feeding network.

8. The antenna structure according to claim 7, characterized in that: The fixing element is made of dielectric material.

9. The antenna structure according to claim 7, characterized in that: A plurality of mounting protrusions are provided in the extension direction of the support structure, each of the mounting protrusions is provided with a connecting hole, and each of the fixing members is connected to the connecting hole.

10. The antenna structure according to claim 9, characterized in that: Each of the mounting protrusions is arranged on the outer side of the support frame.

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