Aerial antenna

Abstract

The utility model discloses an aerial antenna, and belongs to the technical field of antennae, and the antenna comprises an antenna housing, an antenna housing, an antenna microstrip plate, a fixed medium, an antenna cover plate, and a radio frequency connector. The antenna housing is installed in the antenna shell, the installation side of the antenna housing is provided with an installation cavity, and the antenna microstrip plate is fixed on the bottom wall of the installation cavity; the fixed medium is arranged in the mounting cavity, and the fixed end of the fixed medium abuts against the antenna microstrip plate; the antenna cover plate is arranged at the end part of the antenna shell; the radio frequency connector is installed on the antenna cover plate, and the signal input end of the radio frequency connector penetrates through the antenna cover plate and the fixed medium and then is connected to the antenna microstrip plate. The antenna solves the problem that in the prior art, the connection structure of all parts of the antenna is complex.

Description

Technical Field

[0001] This application belongs to the technical field of antennas, and particularly relates to an airborne antenna. Background Art

[0002] With the development of technology, the demand for wireless transmission in various consumer electronic products is increasing day by day, such as wireless image transmission, wireless command transmission, etc. The role of an antenna is to transmit, emit, and receive electromagnetic wave signals, and its reliability and stability directly affect the wireless transmission performance of the device. The antenna is usually located in a position with good line of sight, and the outer shell of the antenna is basically made of metal to form a stable and reliable structure; while the radome is basically made of non-metallic material so as not to affect the transmission of electromagnetic wave signals. The connection structures of the components of the existing antennas are relatively complex, resulting in low assembly and maintenance efficiency, and relatively high manufacturing costs. Summary of the Utility Model

[0003] By providing an airborne antenna in an embodiment of this application, the problem that the connection structures of the components of the antenna in the prior art are relatively complex is solved.

[0004] To achieve the above object, an embodiment of the present utility model provides an airborne antenna, including a radome, an antenna housing, an antenna microstrip board, a fixing medium, an antenna cover plate, and a radio frequency connector;

[0005] The radome is installed in the antenna housing, an installation cavity is provided on the installation side of the radome, and the antenna microstrip board is fixed to the bottom wall of the installation cavity;

[0006] The fixing medium is arranged in the installation cavity, and the fixed end of the fixing medium abuts against the antenna microstrip board;

[0007] The antenna cover plate is installed at the end of the antenna housing;

[0008] The radio frequency connector is installed on the antenna cover plate, and the signal input end of the radio frequency connector passes through the antenna cover plate and the fixing medium and is connected to the antenna microstrip board.

[0009] In a possible implementation manner, the antenna housing includes a connected installation cylinder and a docking cylinder, the wall thicknesses of the installation cylinder and the docking cylinder are equal, and the outer diameter of the installation cylinder is greater than the outer diameter of the docking cylinder;

[0010] A step surface inside the housing is formed at the connection of the inner walls of the installation cylinder and the docking cylinder, and a step surface outside the housing is formed at the connection of the outer walls of the installation cylinder and the docking cylinder;

[0011] Threaded holes for connecting to installation equipment are provided on the step surface outside the housing.

[0012] In a possible implementation, an outer stepped surface of the radome docking side is provided; the outer stepped surface of the radome abuts against the inner stepped surface of the housing.

[0013] In a possible implementation, a groove is provided at the fixed end of the fixed medium, and the antenna microstrip board is snap-fitted into the groove.

[0014] In a possible implementation, the antenna cover plate abuts against both the abutting end of the fixed medium and the end surface of the installation side of the radome.

[0015] In a possible implementation, the material of the radome is polycarbonate.

[0016] In a possible implementation, the antenna microstrip board is fixed to the bottom wall of the installation cavity by means of adhesives.

[0017] In a possible implementation, the signal input end of the RF connector is connected to the antenna microstrip board by means of brazing.

[0018] In a possible implementation, connection plates are provided on both sides of the RF connector, and the end of the fastening bolt passes through the hole in the connection plate and is screwed into the threaded hole on the antenna cover plate.

[0019] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0020] An embodiment of the present utility model provides an airborne antenna. When in use, the antenna is installed on a device, and the signal output end of the RF connector is electrically connected to the signal processing module of the installation device. The antenna transmits the received electromagnetic wave signal to the signal processing module, and the signal transmission processing module performs relevant action instructions, such as image data transmission, flight data transmission, flight attitude adjustment, etc. The fixing medium plays a role in fixing and pressing the antenna microstrip board. Such a fixing method is simple and reliable. A cavity is provided in the fixing medium, which can reduce the weight of the antenna. At the same time, this part of the structure forms the structure of the microstrip antenna. The cavity is the baseband of the microstrip antenna, thereby ensuring the signal receiving and transmitting capabilities of the antenna. The groove body can further fix the antenna microstrip board and prevent its radial movement. The antenna cover and the fixing medium of the present utility model are both fixed by the pressing method of the antenna cover plate. Therefore, only bolts need to be provided at the connection between the antenna cover plate and the antenna housing to meet the assembly requirements. Such a connection structure simplifies the structure of the antenna and improves the assembly efficiency. The antenna cover made of polycarbonate material has a low cost, thereby reducing the cost of the antenna. The antenna microstrip board is fixed by two methods: gluing and pressing with the fixing medium, thereby increasing the stability of the antenna microstrip board and reducing the use of screws. The present utility model solves the problem that the connection structure of each component of the antenna in the prior art is relatively complex. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 FIG. 1 is a schematic front view of the airborne antenna provided by the embodiment of the present utility model.

[0023] Figure 2 FIG. 2 is a schematic back view of the airborne antenna provided by the embodiment of the present utility model.

[0024] Figure 3 FIG. 3 is a cross-sectional view of the airborne antenna provided by the embodiment of the present utility model.

[0025] Figure 4 FIG. 4 is an installation schematic diagram of the airborne antenna provided by the embodiment of the present utility model.

[0026] Reference numerals: 1 - radome; 11 - mounting cavity; 12 - outer step surface of the radome; 2 - antenna housing; 21 - mounting cylinder; 22 - docking cylinder; 23 - inner step surface of the housing; 24 - outer step surface of the housing; 3 - antenna microstrip board; 4 - fixing medium; 41 - groove body; 5 - antenna cover plate; 6 - RF connector; 61 - connecting plate; 7 - mounting device; 8 - fastening bolt. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0029] As Figures 1 to 4 shown, the airborne antenna provided by the embodiment of the present invention includes a radome 1, an antenna housing 2, an antenna microstrip board 3, a fixing medium 4, an antenna cover plate 5, and an RF connector 6.

[0030] The radome 1 is installed inside the antenna housing 2. An installation cavity 11 is provided on the installation side of the radome 1, and the antenna microstrip board 3 is fixed to the bottom wall of the installation cavity 11.

[0031] The fixing medium 4 is arranged in the installation cavity 11, and the fixed end of the fixing medium 4 abuts against the antenna microstrip board 3.

[0032] The antenna cover plate 5 is installed at the end of the antenna housing 2.

[0033] The RF connector 6 is installed on the antenna cover plate 5, and the signal input end of the RF connector 6 passes through the antenna cover plate 5 and the fixing medium 4 and then is connected to the antenna microstrip board 3.

[0034] It should be noted that the two sides of the radome 1 are respectively the installation side and the docking side, and the two ends of the fixing medium 4 are respectively the fixed end and the abutting end. The fixing medium 4 plays the role of fixing and pressing the antenna microstrip board 3. Such a fixing method is simple and reliable. The antenna cover plate 5 is installed on the antenna housing 2 through bolts. The cross-section of the antenna housing 2 is a rectangular structure, and the antenna housing 2 is provided with a chamfered corner structure. The signal output end of the RF connector 6 is provided with an external thread for easy connection. A cavity is provided inside the fixing medium 4. The cavity can reduce the weight of the antenna. At the same time, this part of the structure forms the structural form of the microstrip antenna. The cavity is the baseband of the microstrip antenna, thereby ensuring the signal receiving and transmitting capabilities of the antenna.

[0035] When the antenna works, the antenna is installed on the installation device 7, so that the signal output end of the RF connector 6 is electrically connected to the signal processing module of the installation device 7. The antenna transmits the received electromagnetic wave signal to the signal processing module, and the signal transmission processing module performs relevant action instructions, such as image data transmission, flight data transmission, flight attitude adjustment, etc. The implementation method of the signal processing module is the prior art and will not be described in detail in this embodiment. Through experiments, the utility model can withstand extremely high temperatures and vibration shocks, and will not affect the antenna performance in extreme use environments, thereby ensuring the smooth transmission of electromagnetic wave signals.

[0036] In this embodiment, the antenna housing 2 includes a connected installation cylinder 21 and a docking cylinder 22. The wall thicknesses of the installation cylinder 21 and the docking cylinder 22 are equal. The outer diameter of the installation cylinder 21 is greater than the outer diameter of the docking cylinder 22. A shell inner step surface 23 is formed at the connection of the inner walls of the installation cylinder 21 and the docking cylinder 22, and a shell outer step surface 24 is formed at the connection of the outer walls of the installation cylinder 21 and the docking cylinder 22.

[0037] Threaded holes for connecting the installation device 7 are provided on the shell outer step surface 24.

[0038] It should be noted that after the docking cylinder 22 is inserted into the docking hole of the installation device 7, it is fixed by bolts. The installation cylinder 21 and the docking cylinder 22 are integrally processed and manufactured.

[0039] In this embodiment, an outer step surface 12 of the radome is provided on the outer wall of the docking side of the radome 1. The outer step surface 12 of the radome abuts against the inner step surface 23 of the shell.

[0040] It should be noted that silicone rubber is provided between the outer wall of the radome 1 and the inner walls of the installation cylinder 21 and the docking cylinder 22, so as to play a role in waterproof sealing.

[0041] In this embodiment, a groove 41 is provided at the fixed end of the fixed medium 4, and the antenna microstrip board 3 is snap-fitted into the groove 41.

[0042] It should be noted that the groove 41 can further fix the antenna microstrip board 3 and prevent its radial movement.

[0043] In this embodiment, the antenna cover plate 5 is in contact with both the abutting end of the fixed medium 4 and the end face of the mounting side of the radome 1.

[0044] It should be noted that the antenna cover plate 5 plays a role in pressing and fixing the fixed medium 4 and the radome 1.

[0045] The radome 1 and the fixed medium 4 of the present utility model are both fixed by the pressing method of the antenna cover plate 5. Therefore, only bolts need to be provided at the connection between the antenna cover plate 5 and the antenna housing 2 to meet the assembly requirements. Such a connection structure simplifies the structure of the antenna and improves the assembly efficiency.

[0046] In this embodiment, the material of the radome 1 is polycarbonate.

[0047] It should be noted that the radome 1 made of polycarbonate has a low cost, thus reducing the cost of the antenna. The materials of the antenna housing 2, the fixed medium 4, and the antenna cover plate 5 are 2A12 aluminum alloy. 2A12 aluminum alloy is a high-strength hard aluminum and has a low cost. Therefore, it can meet the usage requirements of the antenna.

[0048] In this embodiment, the antenna microstrip board 3 is fixed to the bottom wall of the installation cavity 11 by gluing.

[0049] It should be noted that the antenna microstrip board 3 is fixed by two methods, namely gluing and pressing by the fixed medium 4, thereby increasing the stability of the antenna microstrip board 3 and reducing the use of screws at the same time.

[0050] In this embodiment, the signal input end of the RF connector 6 is connected to the antenna microstrip board 3 by brazing.

[0051] It should be noted that the brazing method has a better electrical connection effect.

[0052] In this embodiment, connection plates 61 are provided on both sides of the RF connector 6. The end of the fastening bolt 8 passes through the hole on the connection plate 61 and is screwed into the threaded hole on the antenna cover plate 5. The connection plate 61 plays a role in fixing the RF connector 6.

[0053] In this embodiment, for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. An airborne antenna, characterized in that: It includes a radome (1), an antenna housing (2), an antenna microstrip board (3), a fixing medium (4), an antenna cover plate (5), and a radio frequency connector (6); The radome (1) is installed inside the antenna housing (2). An installation cavity (11) is provided on the installation side of the radome (1), and the antenna microstrip board (3) is fixed to the bottom wall of the installation cavity (11); The fixing medium (4) is arranged inside the installation cavity (11), and the fixed end of the fixing medium (4) abuts against the antenna microstrip board (3); The antenna cover plate (5) is installed at the end of the antenna housing (2); The radio frequency connector (6) is installed on the antenna cover plate (5). The signal input end of the radio frequency connector (6) passes through the antenna cover plate (5) and the fixing medium (4) and then is connected to the antenna microstrip board (3).

2. The airborne antenna according to claim 1, characterized in that: The antenna housing (2) includes a connected installation cylinder (21) and a docking cylinder (22). The wall thicknesses of the installation cylinder (21) and the docking cylinder (22) are equal, and the outer diameter of the installation cylinder (21) is larger than the outer diameter of the docking cylinder (22); A stepped surface (23) inside the housing is formed at the connection of the inner walls of the installation cylinder (21) and the docking cylinder (22), and a stepped surface (24) outside the housing is formed at the connection of the outer walls of the installation cylinder (21) and the docking cylinder (22); Threaded holes for connecting to the installation device (7) are provided on the stepped surface (24) outside the housing.

3. The airborne antenna according to claim 2, characterized in that: An outer stepped surface (12) of the radome (1) is provided on the outer wall of the docking side of the radome (1); the outer stepped surface (12) of the radome abuts against the stepped surface (23) inside the housing.

4. The air antenna according to claim 3, characterized in that: A groove body (41) is provided at the fixed end of the fixing medium (4), and the antenna microstrip board (3) is snap-fitted into the groove body (41).

5. The air antenna according to claim 4, characterized in that: The abutting end of the antenna cover plate (5) and the fixing medium (4), and the end surface of the installation side of the radome (1) are all in abutment.

6. The airborne antenna according to claim 1, wherein: The material of the radome (1) is polycarbonate.

7. The airborne antenna according to claim 1, wherein: The antenna microstrip board (3) is fixed to the bottom wall of the installation cavity (11) by gluing.

8. The air antenna according to claim 1, characterized in that: The signal input end of the radio frequency connector (6) is connected to the antenna microstrip board (3) by soldering.

9. The air antenna according to claim 1, characterized in that: Connection plates (61) are provided on both sides of the radio frequency connector (6). The end of the fastening bolt (8) passes through the holes on the connection plates (61) and then is screwed into the threaded holes on the antenna cover plate (5).

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