A low frequency broadband feed antenna

Abstract

The utility model discloses a kind of low-frequency broadband feed source antennas, it relates to feed source antenna field, to solve the poor protection performance problem of feed source antenna, its technical scheme main point is including feed source horn, antenna reflector installed at the one end of feed source horn and waveguide pipe installed at the other end of feed source horn, the feed source horn is close to antenna emission face end and is connected with connecting ring, connecting ring is fixed with antenna emission face screw, connecting ring is equipped with the slot far from antenna emission face end, feed source horn is clamped in the inside of slot, the waveguide pipe outside is equipped with radiator pipe, radiator pipe is detachably connected between connecting ring, radiator pipe is fixed with interface protection piece far from connecting ring end screw, the interface protection piece includes interface protection sleeve, reaches the technical effect that can protect feed source antenna and improve heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of feed antennas, specifically a low-frequency broadband feed antenna. Background Technology

[0002] In the development of communication technology, antenna systems are a very common and ubiquitous communication device. In antenna systems, the feed is the core of the antenna. The performance of the feed determines the performance of the antenna. The feed can organize the electromagnetic wave signals reflected by the parabolic reflector, make their directions consistent, and then convert the signals. With the development of technology, there is a certain demand for ultra-wideband feed antennas.

[0003] Existing ultra-wideband feed antennas mostly have an exposed outer shell. Although the outer surface is coated with protective paint, they are easily damaged by wind and rain erosion in the long term, which reduces the antenna's service life. At the same time, the conventional wiring structure usually involves plugging the connecting wire into the antenna and then protecting it with a lot of tape. This method is not only troublesome to install and operate, but also extremely difficult to disassemble in case of failure.

[0004] To address the aforementioned issues, Chinese patent CN202120692568.X discloses an ultra-wideband feed antenna, comprising a feed horn, a protective shell nested on the outer surface of the feed horn, a first connector at one end of the protective shell, an antenna sub-reflector at one end of the feed horn, a positioning mounting bracket fixedly connected to the outer surface of the protective shell, and a second connector at the end of the protective shell away from the first connector. A fixing frame is provided on one side of the feed horn, a waveguide connected to the feed horn is mounted on the fixing frame, and a fixing sleeve nested on the outer surface of the waveguide is mounted on the fixing frame. A third connector is provided at the end of the fixing sleeve away from the fixing frame. In this invention, the protective shell and fixing sleeve structure ensure stable positioning and installation of the feed antenna, while also providing stable protection for the antenna structure, preventing wind and rain erosion, and effectively extending the antenna's service life.

[0005] However, the aforementioned technology uses a protective shell to completely enclose the feed antenna. When the feed antenna is working, it generates heat. Using a completely enclosed structure for protection will affect its normal heat dissipation, thereby affecting its normal operation. Utility Model Content

[0006] The purpose of this invention is to provide a low-frequency broadband feed antenna that can protect the feed antenna and improve heat dissipation efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The device includes a feedhorn, an antenna reflector mounted at one end of the feedhorn, and a waveguide mounted at the other end of the feedhorn. A connecting ring is snapped into the end of the feedhorn near the antenna reflector, and the connecting ring is fixed to the antenna reflector with screws. A slot is provided at the end of the connecting ring away from the antenna reflector, and the feedhorn is snapped into the slot. A heat dissipation pipe is provided on the outside of the waveguide, and the heat dissipation pipe is detachably connected to the connecting ring. An interface protection component is screwed into the end of the heat dissipation pipe away from the connecting ring, and the interface protection component includes an interface protection sleeve.

[0009] Furthermore, the connecting ring has a first groove on its side and the heat dissipation pipe has a second groove on its outer side. The first groove has a plurality of grooves along the circumference of the connecting ring, and the number of second grooves is the same as that of the first grooves. A connecting rod is fixed between the first groove and the second groove with screws.

[0010] By adopting the above technical solution, the connecting ring and the heat pipe can be freely disassembled. At the same time, the connecting ring is installed by plugging in, so all the structures can be disassembled for easy maintenance.

[0011] Furthermore, a number of fins are fixed inside the heat dissipation pipe. The fins are arranged along the circumference of the heat dissipation pipe. A metal heat-conducting pipe is fixed to the end of each fin away from the heat dissipation pipe. The metal heat-conducting pipe abuts against the side of the waveguide at the end away from the fin.

[0012] By adopting the above technical solution, multiple heat dissipation fins are set inside the heat dissipation pipe, thereby improving the overall heat dissipation of the waveguide. During heat dissipation, the heat outside the waveguide is carried away by the metal heat pipe and then dissipated through the gap between the heat dissipation pipe and the waveguide.

[0013] Furthermore, a flange is welded to the end of the heat dissipation pipe away from the connecting ring, and an L-shaped connecting plate is welded to the bottom of the heat dissipation pipe.

[0014] By adopting the above technical solution, it is easy to connect the heat dissipation pipe to the interface protective sleeve, and it is also easy to connect the heat dissipation pipe to external brackets and other equipment.

[0015] Furthermore, the interface protective sleeve is welded with the same flange near the end of the heat dissipation pipe. The interface protective sleeve is fixed to the heat dissipation pipe by screws through the flange. An elastic rubber plate is bonded inside the interface protective plate. An angle rod is hinged inside the elastic rubber plate. The other end of the angle rod is hinged to the side of the elastic rubber plate. A support rod is rotatably connected to the middle of the angle rod. The end of the support rod away from the angle rod is fixed to the inner wall of the elastic rubber plate.

[0016] By adopting the above technical solution, during insertion, as the insertion proceeds, it abuts against the bottom of the angle rod, causing the bottom of the angle rod to begin to rotate. Simultaneously, the angle rod moves upward, and a support rod is set in the middle of the angle rod. Therefore, the angle rod rotates along with the support rod, causing the hinge point between the angle rod and the side of the elastic rubber plate to begin to abut outward, so that the side of the elastic rubber plate abuts against the outside of the joint, further tightening the joint.

[0017] Furthermore, a T-shaped mounting bracket is screwed onto the L-shaped connecting plate at the end furthest from the heat dissipation pipe. This technical solution facilitates the connection of external brackets and other equipment to the heat dissipation pipe.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] 1. It adopts flanges and connecting rods, and all structures can be disassembled, making it easy to carry, assemble, and maintain;

[0020] 2. A heat dissipation pipe is adopted, and multiple heat dissipation fins are set inside the heat dissipation pipe, thereby improving the overall heat dissipation of the waveguide. During heat dissipation, the heat outside the waveguide is carried away by the metal heat pipe and then dissipated through the gap between the heat dissipation pipe and the waveguide.

[0021] 3. An interface protection plate is adopted. During insertion, as the insertion is made, it abuts against the bottom of the angle rod, causing the bottom of the angle rod to start rotating. At the same time, the angle rod moves upward. A support rod is set in the middle of the angle rod, so the angle rod rotates along with the support rod. As a result, the hinge point between the angle rod and the side of the elastic rubber plate begins to abut outward, so that the side of the elastic rubber plate abuts against the outside of the joint, further tightening the joint. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a low-frequency broadband feed antenna provided in this embodiment;

[0024] Figure 2 This embodiment provides a low-frequency broadband feed antenna. Figure 1 A cross-sectional view;

[0025] Figure 3 This embodiment provides a low-frequency broadband feed antenna. Figure 2 Enlarged diagram of point A.

[0026] In the diagram, 1. Feed horn; 2. Antenna reflector; 3. Waveguide; 4. Connecting ring; 5. Slot; 6. Heat sink; 7. Interface protective sleeve; 8. First groove; 9. Second groove; 10. Connecting rod; 11. Fin; 12. Metal heat pipe; 13. Flange; 14. L-shaped connecting plate; 15. Elastic rubber sheet; 16. Angle rod; 17. T-shaped mounting base; 18. Support rod. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-3 The present invention provides a technical solution comprising: a feed horn 1, an antenna reflector 2 installed at one end of the feed horn 1, and a waveguide 3 installed at the other end of the feed horn 1. A connecting ring 4 is snapped into the end of the feed horn 1 near the antenna reflector, and the connecting ring 4 is screwed to the antenna reflector. A slot 5 is provided at the end of the connecting ring 4 away from the antenna reflector, and the feed horn 1 is snapped into the slot 5. A heat dissipation pipe 6 is provided on the outside of the waveguide 3, and the heat dissipation pipe 6 is detachably connected to the connecting ring 4. An interface protection component is screwed into the end of the heat dissipation pipe 6 away from the connecting ring 4, and the interface protection component includes an interface protection sleeve 7.

[0030] The connecting ring 4 has a first groove 8 on its side and the heat dissipation pipe 6 has a second groove 9 on its outer side. The first groove 8 is provided in several directions along the circumference of the connecting ring 4. The number of second grooves 9 is the same as that of the first groove 8. A connecting rod 10 is fixed between the first groove 8 and the second groove 9 by screws.

[0031] Furthermore, the connecting ring 4 and the heat pipe 6 can be freely disassembled. At the same time, the connecting ring 4 is installed by plugging in, so all the structures can be disassembled for easy maintenance.

[0032] Furthermore, several fins 11 are fixed inside the heat dissipation pipe 6. The fins 11 are arranged along the circumference of the heat dissipation pipe 6. A metal heat conduction pipe 12 is fixed to the end of each fin 11 away from the heat dissipation pipe 6. The end of the metal heat conduction pipe 12 away from the fin 11 abuts against the side of the waveguide 3.

[0033] Meanwhile, a flange 13 is welded to the end of the heat dissipation pipe 6 away from the connecting ring 4, and an L-shaped connecting plate 14 is welded to the bottom of the heat dissipation pipe 6.

[0034] Furthermore, the heat dissipation pipe 6 can also be disassembled, and multiple heat dissipation fins 11 are set inside the heat dissipation pipe 6, thereby improving the overall heat dissipation of the waveguide 3. During heat dissipation, the heat outside the waveguide 3 is carried away by the metal heat conduction pipe 12 and then dissipated through the gap between the heat dissipation pipe 6 and the waveguide 3. At the same time, a T-shaped mounting base 17 is screwed on the L-shaped connecting plate 14 away from the heat dissipation pipe 6, which facilitates the connection between the heat dissipation pipe 6 and the external bracket and makes the overall installation convenient.

[0035] Additionally, an interface protective sleeve is installed at the connection point of the waveguide 3 to abut the connecting wires and increase stability during connection. Specifically, a flange 13 is welded to the end of the interface protective sleeve near the heat sink 6. The interface protective sleeve is fixed to the heat sink 6 with screws via the flange 13. An elastic rubber plate 15 is bonded inside the interface protective plate. An angle rod 16 is hinged to the inside of the elastic rubber plate 15. The other end of the angle rod 16 is hinged to the side of the elastic rubber plate 15. A support rod 18 is rotatably connected to the middle of the angle rod 16. The end of the support rod 18 away from the angle rod 16 is fixed to the inner wall of the elastic rubber plate 15. The interface protective plate and the heat dissipation pipe 6 can be disassembled. The elastic rubber plate 15 inside has a through hole in the middle for plug insertion. When plugged in, as the plug is inserted, it abuts against the bottom of the angle rod 16, so the bottom of the angle rod 16 starts to rotate. At the same time, the angle rod 16 moves upward. A support rod 18 is set in the middle of the angle rod 16, so the angle rod 16 rotates with the support rod 18. As a result, the hinge point between the angle rod 16 and the side of the elastic rubber plate 15 starts to abut against the outside, so that the side of the elastic rubber plate 15 abuts against the outside of the connector, further tightening the connector.

[0036] The working principle of this utility model is as follows: The connecting ring 4 is inserted into the front end of the feed horn 1, and the antenna reflector 2 is screwed on the side of the connecting ring 4. At the same time, the heat dissipation pipe 6 is sleeved on the outside of the waveguide 3. The metal heat conduction pipe 12 inside the heat dissipation pipe 6 is in contact with the outside of the waveguide 3. The heat dissipation pipe 6 and the connecting ring 4 are fixed with connecting rods 10 and screws. At the same time, an interface protective sleeve is installed on the other end of the heat dissipation pipe 6. After the installation is completed, multiple connecting rods 10 are used to protect the outside of the feed horn 1 during use, and the heat dissipation pipe 6 is used to dissipate heat from the outside of the waveguide 3. The interface protective sleeve is used to further tighten the connector connection to prevent the connector from falling off, and the elastic rubber plate 15 is used to cover and prevent the wiring from bending.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-frequency broadband feed antenna, comprising a feed horn (1), an antenna reflector (2) mounted at one end of the feed horn (1), and a waveguide (3) mounted at the other end of the feed horn (1), characterized in that: The feed horn (1) is fitted with a connecting ring (4) near the antenna transmitting surface. The connecting ring (4) is fixed to the antenna transmitting surface with screws. The connecting ring (4) is provided with a slot (5) away from the antenna transmitting surface. The feed horn (1) is fitted inside the slot (5). The waveguide (3) is provided with a heat dissipation pipe (6) on the outside. The heat dissipation pipe (6) is detachably connected to the connecting ring (4). The heat dissipation pipe (6) is fixed with an interface protection component with screws at the end away from the connecting ring (4). The interface protection component includes an interface protection sleeve (7).

2. The low-frequency broadband feed antenna according to claim 1, characterized in that: The connecting ring (4) has a first groove (8) on its side and the heat sink (6) has a second groove (9) on its outer side. The first groove (8) has a plurality of grooves along the circumference of the connecting ring (4). The number of second grooves (9) is the same as that of the first grooves (8). A connecting rod (10) is screwed between the first groove (8) and the second groove (9).

3. The low-frequency broadband feed antenna according to claim 1, characterized in that: The heat dissipation pipe (6) has several fins (11) fixed inside. The fins (11) are arranged along the circumference of the heat dissipation pipe (6). Each fin (11) has a metal heat conduction pipe (12) fixed at the end away from the heat dissipation pipe (6). The end of the metal heat conduction pipe (12) away from the fin (11) abuts against the side of the waveguide (3).

4. A low-frequency broadband feed antenna according to claim 1, characterized in that: A flange (13) is welded to the end of the heat dissipation pipe (6) away from the connecting ring (4), and an L-shaped connecting plate (14) is welded to the bottom of the heat dissipation pipe (6).

5. A low-frequency broadband feed antenna according to claim 4, characterized in that: The interface protective sleeve is welded with the same flange (13) near the end of the heat dissipation pipe (6). The interface protective sleeve is fixed to the heat dissipation pipe (6) by screws through the flange (13). An elastic rubber plate (15) is bonded inside the interface protective sleeve. An angle rod (16) is hinged inside the elastic rubber plate (15). The other end of the angle rod (16) is hinged to the side of the elastic rubber plate (15). A support rod (18) is rotatably connected to the middle of the angle rod (16). The end of the support rod (18) away from the angle rod (16) is fixed to the inner wall of the elastic rubber plate (15).

6. A low-frequency broadband feed antenna according to claim 4, characterized in that: The L-shaped connecting plate (14) is screwed to a T-shaped mounting base (17) at the end away from the heat sink (6).

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