Miniaturized gradient gap pulse ultra-wideband antenna

Abstract

The utility model discloses a miniaturized gradient gap pulse ultra-wideband antenna, which comprises an aircraft skin, an antenna dielectric substrate and square patches, the top end of the aircraft skin is provided with the antenna dielectric substrate, the two ends of the antenna dielectric substrate are provided with the square patches, the interior of the antenna dielectric substrate is provided with a moving groove, and the moving groove is provided with a gap. A sliding rail is installed on the inner wall of the moving groove, a trapezoidal block is arranged in the sliding rail, the outer wall of the trapezoidal block is matched with the inner wall of the sliding rail, moving grooves are formed in the two sides of the moving groove, and limiting mechanisms used for installing the position of the aircraft skin are arranged in the moving grooves; four parallel grooves are formed in the antenna dielectric substrate, and the device is provided with a starting air cylinder to drive a moving block to move inwards in a sliding rail, so that a trapezoidal block extrudes the position of an arc-shaped positioning block, and the position of a reset spring is extruded; and the limiting rod is inserted into the aircraft skin, so that the aircraft skin and the antenna dielectric substrate can be conveniently mounted and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a miniaturized gradient slot pulse ultra-wideband 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, the antenna needs to have a wide operating frequency band due to the special application background.

[0003] However, the existing miniaturized gradient slot pulse ultra-wideband antenna has the following problems during use: when the traditional antenna is installed and used, it usually adopts a single structure, which is inconvenient to install and fix, making it not practical, and also has poor impedance performance. Utility Model Content

[0004] The utility model aims to provide a miniaturized tapered slot pulse ultra-wideband 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: a miniaturized gradient slot pulse ultra-wideband antenna, comprising an aircraft skin, an antenna dielectric substrate and a square patch, wherein the top of the aircraft skin is provided with an antenna dielectric substrate, and the two ends of the antenna dielectric substrate are provided with square patches, a movable groove is provided inside the antenna dielectric substrate, and a slide rail is installed on the inner wall of the movable groove, a movable block is provided inside the slide rail, a trapezoidal block is installed on the outer wall of the movable block, and the outer wall of the trapezoidal block is adapted to the inner wall of the slide rail, movable grooves are provided on both sides of the movable groove, and a limiting mechanism for installing the position of the aircraft skin is provided inside the movable groove, and four parallel grooves are provided inside the antenna dielectric substrate.

[0006] The technical solution provides a miniaturized gradient slot pulse ultra-wideband antenna, wherein the inner wall of the moving slot is provided with a cylinder, and the output end of the cylinder is connected to one end of the trapezoidal block.

[0007] The technical solution provides a miniaturized gradient slot pulse ultra-wideband antenna, wherein the antenna dielectric substrate is made of Rossger 4350B plate.

[0008] The technical solution provides a miniaturized gradient slot pulse ultra-wideband antenna, wherein the limiting mechanism comprises a guide rod and a limiting rod, the guide rod is installed inside the movable groove, and the outer wall of the guide rod is provided with a limiting rod that penetrates the inner wall of the aircraft skin, and an arc-shaped positioning block adapted to the trapezoidal block is installed at one end of the limiting rod.

[0009] The technical solution provides a miniaturized gradient slot pulse ultra-wideband antenna, wherein the outer wall of the limit rod is sleeved with a reset spring, and one end of the reset spring is connected to the inner wall of the movable groove.

[0010] Compared with the prior art, the utility model provides a miniaturized gradient slot pulse ultra-wideband antenna, which has the following beneficial effects:

[0011] 1. The utility model starts the cylinder to drive the moving block to move inward in the slide rail, so that the trapezoidal block squeezes the arc-shaped positioning block, so that the position of the return spring is squeezed, and the position of the limit rod is inserted into the aircraft skin to facilitate the installation and fixation of the aircraft skin and the antenna medium substrate.

[0012] 2. The utility model selects the low-loss material Rossger 4350B as the antenna dielectric substrate to obtain higher efficiency, and its dielectric constant is 3.48, which plays an impedance matching role and radiation performance. 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 For the utility model Figure 1 A is an enlarged schematic diagram of the main structure;

[0015] Figure 3 It is a schematic diagram of a top view and cross-section structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure when viewed from above of the utility model.

[0017] In the figure: 1. Aircraft skin; 2. Antenna dielectric substrate; 3. Square patch; 4. Movable slot; 5. Moving slot; 6. Slide rail; 7. Moving block; 8. Trapezoidal block; 9. Guide rod; 10. Limit rod; 11. Arc positioning block; 12. Reset spring; 13. Parallel slot; 14. Cylinder. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiment 1, as Figure 1-2As shown, the utility model provides a technical solution: a miniaturized gradient slot pulse ultra-wideband antenna, comprising an aircraft skin 1, an antenna dielectric substrate 2 and a square patch 3, the top of the aircraft skin 1 is provided with an antenna dielectric substrate 2, and the two ends of the antenna dielectric substrate 2 are provided with square patches 3, four parallel grooves 13 are opened inside the antenna dielectric substrate 2, the antenna dielectric substrate 2 adopts Rossger 4350B plate material, and Rossger 4350B is selected as a low-loss material by the antenna dielectric substrate 2 to obtain higher efficiency, and its dielectric constant is 3.48, which plays an impedance matching role and radiation performance.

[0020] Embodiment 2, as Figure 1-4 As shown, the utility model provides a technical solution: a miniaturized gradient slot pulse ultra-wideband antenna, comprising an antenna dielectric substrate 2, a movable groove 5 is provided inside the movable groove 5, and a slide rail 6 is installed on the inner wall of the movable groove 5, a movable block 7 is provided inside the slide rail 6, a trapezoidal block 8 is installed on the outer wall of the movable block 7, and the outer wall of the trapezoidal block 8 is adapted to the inner wall of the slide rail 6, movable grooves 4 are provided on both sides of the movable groove 5, and a limiting mechanism for installing the position of the aircraft skin 1 is provided inside the movable groove 4, a cylinder 14 is provided on the inner wall of the movable groove 5, and the output end of the cylinder 14 is connected to one end of the trapezoidal block 8, and the limiting mechanism includes a guide rod 9 and a limiting rod 10, a guide rod 9 is installed inside the movable groove 4, and a limit rod 10 is provided on the outer wall of the guide rod 9 and passes through the inner wall of the aircraft skin 1, an arc-shaped positioning block 11 adapted to the trapezoidal block 8 is installed at one end of the limit rod 10, a return spring 12 is sleeved on the outer wall of the limit rod 10, and one end of the return spring 12 is connected to the inner wall of the movable groove 4, and the movable block 7 is driven to move inward in the slide rail 6 by starting the cylinder 14, so that the trapezoidal block 8 squeezes the position of the arc-shaped positioning block 11, so that the position of the return spring 12 is squeezed, and the position of the limit rod 10 is inserted into the aircraft skin 1, which is convenient for installing and fixing the aircraft skin 1 and the antenna medium substrate 2.

[0021] Working principle: first, turn on the external power supply, then, start the cylinder 14 to drive the moving block 7 to move forward in the slide rail 6, so that the trapezoidal block 8 squeezes the arc-shaped positioning block 11, so that the position of the return spring 12 is squeezed, and the position of the limit rod 10 is inserted into the aircraft skin 1 to facilitate the installation and fixation of the aircraft skin 1 and the antenna dielectric substrate 2. When it is necessary to start the cylinder 14 to push the trapezoidal block 8 to move to the rear position, the limit rod 10 drives the arc-shaped positioning block 11 to shift in the guide rod 9 under the action of the elastic force of the return spring 12 itself, and then the limit rod 10 is separated from the aircraft skin 1, and the antenna dielectric substrate 2 can be taken out from the aircraft skin 1 to complete the dismantling.

[0022] The antenna dielectric substrate 2 is made of low-loss material Rossger 4350B to obtain higher efficiency, and its dielectric constant is 3.48, which plays an impedance matching role and radiation performance.

[0023] 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. A miniaturized gradient slot pulse ultra-wideband antenna, comprising an aircraft skin (1), an antenna dielectric substrate (2) and a square patch (3), characterized in that: An antenna dielectric substrate (2) is arranged at the top of the aircraft skin (1), and square patches (3) are arranged at both ends of the antenna dielectric substrate (2); a movable groove (5) is provided inside the antenna dielectric substrate (2), and a slide rail (6) is installed on the inner wall of the movable groove (5); a movable block (7) is provided inside the slide rail (6); a trapezoidal block (8) is installed on the outer wall of the movable block (7), and the outer wall of the trapezoidal block (8) is matched with the inner wall of the slide rail (6); movable grooves (4) are provided on both sides of the movable groove (5), and a limiting mechanism for installing the position of the aircraft skin (1) is provided inside the movable groove (4); and four parallel grooves (13) are provided inside the antenna dielectric substrate (2).

2. The miniaturized tapered slot pulse ultra-wideband antenna according to claim 1, characterized in that: The inner wall of the movable groove (5) is provided with a cylinder (14), and the output end of the cylinder (14) is connected to one end of the trapezoidal block (8).

3. The miniaturized tapered slot pulse ultra-wideband antenna according to claim 1, characterized in that: The antenna dielectric substrate (2) is made of Rossger 4350B plate.

4. The miniaturized tapered slot pulse ultra-wideband antenna according to claim 1, characterized in that: The limiting mechanism comprises a guide rod (9) and a limiting rod (10); the guide rod (9) is installed inside the movable groove (4); the outer wall of the guide rod (9) is provided with a limiting rod (10) penetrating the inner wall of the aircraft skin (1); one end of the limiting rod (10) is provided with an arc-shaped positioning block (11) adapted to the trapezoidal block (8).

5. The miniaturized tapered slot pulse ultra-wideband antenna according to claim 4, characterized in that: The outer wall of the limiting rod (10) is sleeved with a return spring (12), and one end of the return spring (12) is connected to the inner wall of the movable groove (4).

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