Airborne ultrashort wave antenna

Abstract

The airborne ultra-short wave antenna comprises an ultra-short wave antenna mounting seat, a supporting frame and a fixing frame, a first arc-shaped groove is formed in the ultra-short wave antenna mounting seat, the supporting frame is hinged to the bottom end of the first arc-shaped groove, the fixing frame is hinged to the top end of the supporting frame, a movable groove is formed in the bottom end of the fixing frame, and the movable groove is connected with the supporting frame. An antenna assembly is arranged at the top end of the fixing frame, a lifting mechanism used for lifting the position of the antenna assembly is arranged in the first arc-shaped groove, connecting frames are installed on the two sides of the ultrashort wave antenna installation base, and positioning grooves are formed in the connecting frames. The movable block moves back and forth in the second arc-shaped groove, the height of the antenna assembly is adjusted, reinforcing ribs are arranged on the two sides of the antenna assembly, the strength can be improved, the protection performance is improved, a small-size antenna is arranged at the position of the antenna assembly, and air resistance is conveniently reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of airborne antennas, in particular to an airborne ultra-short wave antenna. Background Art

[0002] Airborne ultra-short wave antennas are used in the ultra-short wave communication system of airborne platforms to complete the tasks of receiving and transmitting electromagnetic waves. As an important component of the airborne communication system, affected by the special application background, the antenna needs to ensure a wide working frequency band and minimize the size.

[0003] However, the existing airborne ultra-short wave antenna has the following problems during use: when the working wavelength corresponding to the working frequency is ultra-short wave, the size of the airborne ultra-short wave antenna corresponding to 1 / 4 wavelength is also quite large for the aircraft platform as the antenna carrier. The large-sized airborne antenna exposed to the outside will generate great air resistance, which will have a bad impact on the airborne platform. In order to reduce the size of the airborne ultra-short wave antenna, it is necessary to miniaturize the antenna while ensuring that the electrical performance of the antenna meets the requirements as much as possible. Utility Model Content

[0004] The purpose of the utility model is to provide an airborne ultra-short wave antenna to solve the related problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airborne ultra-short wave antenna, comprising an ultra-short wave antenna mounting seat, a supporting frame and a fixing frame, wherein a first arc-shaped groove is provided inside the ultra-short wave antenna mounting seat, and the bottom end of the first arc-shaped groove is hingedly connected to the supporting frame, the top end of the supporting frame is hingedly connected to the fixing frame, and the bottom end of the fixing frame is provided with a movable groove, the top end of the fixing frame is provided with an antenna assembly, the inside of the first arc-shaped groove is provided with a lifting mechanism for lifting the position of the antenna assembly, connecting frames are installed on both sides of the ultra-short wave antenna mounting seat, and a positioning groove is provided inside the connecting frame.

[0006] The technical solution provides an airborne ultra-short wave antenna, wherein reinforcing ribs are arranged on both sides of the antenna assembly.

[0007] The technical solution provides an airborne ultra-short wave antenna, wherein the reinforcing rib is in an L-shape.

[0008] The technical solution provides an airborne ultra-short wave antenna, wherein the lifting mechanism includes a second arc-shaped groove and a moving block, the inner walls of the first arc-shaped groove and the movable groove are provided with a second arc-shaped groove, and a moving block is arranged inside the second arc-shaped groove, and a connecting rod is installed between the moving blocks.

[0009] The technical solution provides an airborne ultra-short wave antenna, wherein an electric telescopic rod is arranged at the top of the first arc-shaped slot, and the output end of the electric telescopic rod is connected to the outer wall of the connecting rod.

[0010] Compared with the prior art, the utility model provides an airborne ultra-short wave antenna, which has the following beneficial effects:

[0011] 1. The utility model provides reinforcing ribs on both sides of the antenna assembly to increase strength and thus enhance protection performance, and the antenna assembly is a small-volume antenna to reduce air resistance.

[0012] 2. The utility model starts the electric telescopic rod to push the connecting rod to move to one side, so that the moving block moves forward and backward in the second arc groove, and then the height of the antenna assembly can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0016] In the figure: 1. ultra-short wave antenna mounting base; 2. first arc-shaped groove; 3. support frame; 4. fixing frame; 5. antenna assembly; 6. second arc-shaped groove; 7. electric telescopic rod; 8. moving block; 9. connecting rod; 10. reinforcing rib; 11. connecting frame; 12. positioning groove; 13. movable groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1, as Figure 1-2As shown, the utility model provides a technical solution: an airborne ultra-short wave antenna, comprising an ultra-short wave antenna mounting seat 1, a support frame 3 and a fixing frame 4, wherein a first arc-shaped groove 2 is provided inside the ultra-short wave antenna mounting seat 1, and the bottom end of the first arc-shaped groove 2 is hinged with the support frame 3, the top end of the support frame 3 is hinged with the fixing frame 4, and the bottom end of the fixing frame 4 is provided with a movable groove 13, an antenna assembly 5 is arranged at the top of the fixing frame 4, and reinforcing ribs 10 are arranged on both sides of the antenna assembly 5, and the shape of the reinforcing ribs 10 is L-shaped, and the reinforcing ribs 10 are arranged on both sides of the antenna assembly 5, so that the strength can be increased, so that the protection performance is increased, and the antenna assembly 5 is a small-volume antenna, which is convenient for reducing air resistance.

[0019] Embodiment 2, as Figure 1-3 As shown, the utility model provides a technical solution: an airborne ultra-short wave antenna, comprising a lifting mechanism for lifting the position of an antenna assembly 5 arranged inside the first arc-shaped groove 2, connecting frames 11 are installed on both sides of the ultra-short wave antenna mounting seat 1, and a positioning groove 12 is opened inside the connecting frame 11, the lifting mechanism comprises a second arc-shaped groove 6 and a moving block 8, the inner wall of the first arc-shaped groove 2 and the movable groove 13 is opened with a second arc-shaped groove 6, and a moving block 8 is arranged inside the second arc-shaped groove 6, a connecting rod 9 is installed between the moving blocks 8, an electric telescopic rod 7 is arranged at the top of the first arc-shaped groove 2, and the output end of the electric telescopic rod 7 is connected to the outer wall of the connecting rod 9, the electric telescopic rod 7 can be started to push the connecting rod 9 to move to one side, so that the moving block 8 moves forward and backward in the second arc-shaped groove 6, and then the height of the antenna assembly 5 can be adjusted.

[0020] Working principle: First, turn on the external power supply, and the operator fixes the connecting frame 11 to the aircraft skin by passing the bolt through the positioning groove 12, and then starts the electric telescopic rod 7 to push the connecting rod 9 to one side, so that the moving block 8 moves forward and backward in the second arc groove 6, and then the height of the antenna assembly 5 can be adjusted. Reinforcing ribs 10 are provided on both sides of the antenna assembly 5 to increase the strength and enhance the protection performance. The antenna assembly 5 is a small-volume antenna, which is convenient for reducing air resistance.

[0021] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An airborne ultra-short wave antenna, comprising an ultra-short wave antenna mounting base (1), a support frame (3) and a fixing frame (4), characterized in that: The ultra-short wave antenna mounting seat (1) has a first arc-shaped groove (2) formed inside, and a support frame (3) is hingedly connected to the bottom end of the first arc-shaped groove (2), a fixing frame (4) is hingedly connected to the top end of the supporting frame (3), and a movable groove (13) is formed at the bottom end of the fixing frame (4), an antenna assembly (5) is arranged at the top end of the fixing frame (4), a lifting mechanism for lifting the position of the antenna assembly (5) is arranged inside the first arc-shaped groove (2), and connecting frames (11) are installed on both sides of the ultra-short wave antenna mounting seat (1), and positioning grooves are formed inside the connecting frames (11) (12), reinforcing ribs (10) are provided on both sides of the antenna assembly (5), and the shape of the reinforcing ribs (10) is L-shaped. The lifting mechanism comprises a second arc groove (6) and a moving block (8), the inner walls of the first arc groove (2) and the movable groove (13) are provided with a second arc groove (6), and a moving block (8) is provided inside the second arc groove (6), and a connecting rod (9) is installed between the moving blocks (8), and an electric telescopic rod (7) is provided at the top end of the first arc groove (2), and the output end of the electric telescopic rod (7) is connected to the outer wall of the connecting rod (9).

Images