Radome with helical antenna

Abstract

The utility model discloses a radome with a helical antenna, and belongs to the technical field of radomes. The problem that a guide wire and an antenna array in an existing radome are prone to being snapped is solved. The top of the foam filling body is provided with a mounting cavity; an antenna array is arranged in the mounting cavity, and the bottom of the antenna array is connected with a guide wire; the guide lines are distributed in spiral line grooves spirally formed around the foam filling body; and a skin wraps the periphery of the foam filling body. According to the utility model, the guide wire is arranged in the spiral wire groove, and the spiral wire groove plays a role in fixing the guide wire, so that the connection position of the guide wire and the antenna array can be prevented from being easily snapped when the guide wire is directly put down, and the service life of the guide wire and the antenna array is prolonged; moreover, the guide wire is arranged in the spiral groove, the guide wire is directly packaged when the foam filling body is wrapped with the skin, the structure is simple, and implementation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of radomes, in particular to a radome with a helical antenna. Background Art

[0002] An antenna element is an important part of an antenna. It is mainly responsible for amplifying signals and controlling the radiation direction of signals, so that the electromagnetic signals received by the antenna are stronger. The basic working principle of an antenna element is based on the principle of electromagnetic induction. When high-frequency current passes through the antenna element, the antenna element converts it into a magnetic field. These magnetic fields will generate electromagnetic waves in the air, thereby transmitting the signals to a distance.

[0003] The antenna element is usually arranged inside the radome and connected to the antenna through a lead wire; however, in the existing radomes, the lead wire is directly arranged inside the radome; after the lead wire is connected to the antenna element, the pulling force of the lead wire on the radome is relatively serious, so damage is likely to occur at the connection position between the two. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides a radome with a helical antenna, which solves the problem that the lead wire and the antenna element are easily broken in the existing radome.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A radome with a helical antenna includes a foam filling body, and an installation cavity is opened at the top of the foam filling body; an antenna element is arranged inside the installation cavity, and a lead wire is connected to the bottom of the antenna element; the lead wire is distributed in a helical wire groove spirally opened around the foam filling body; a skin is wrapped around the periphery of the foam filling body.

[0007] In this scheme, the lead wire is arranged in the helical wire groove, and the helical wire groove plays a fixing role for it, which can avoid the connection position between the lead wire and the antenna element being easily broken when the lead wire is directly placed down, and improves the service life of the lead wire and the antenna element.

[0008] Further, a limiting plate is fixed at the bottom of the antenna element, and a limiting groove is opened inside the limiting plate; one end of the lead wire passes through the limiting groove and is connected to the antenna element.

[0009] In this scheme, the lead wire passes through the limiting groove on the limiting plate. When the lead wire is pulled, the force received by the lead wire acts on the groove wall of the limiting groove, reducing the pulling effect of the lead wire on the antenna element; further ensuring that the lead wire and the antenna element are not easily broken.

[0010] Further, the bottom of the foam filling body is a hollow structure, and the helical wire groove is arranged around the hollow structure.

[0011] In this solution, the bottom of the filling body is designed with a hollow structure, the overall weight of the radome is light, the material used for the foam filling body is less, and the cost is low.

[0012] Furthermore, an installation base is provided at the bottom of the foam filling body, and the installation base is provided with rivet holes.

[0013] Furthermore, a skin lining is provided on the inner wall of the hollow structure.

[0014] In this solution, the skin lining is designed inside the foam filling body, increasing the sealing of the guiding wire and the antenna element.

[0015] Furthermore, the outer shape of the foam filling body is a frustum structure or a cylindrical structure with a gradually increasing diameter from top to bottom.

[0016] Furthermore, the material of the foam filling body is polymethacrylimide resin.

[0017] In this solution, the polymethacrylimide resin is light in weight and high in hardness. Using it to make the foam filling body can realize the lightweight of the radome, and at the same time ensure that the radome has a certain strength.

[0018] Furthermore, the material of the skin is quartz fiber.

[0019] In this solution, the quartz fiber has good wave transmission performance and has little influence on the propagation of electromagnetic waves.

[0020] The beneficial effects of the present utility model are:

[0021] In the radome provided by the present utility model, a spiral wire groove is provided around the foam filling body; the guiding wire is spirally distributed in the spiral wire groove, and the spiral wire groove supports the guiding wire, which can reduce the acting force between it and the antenna element and avoid breaking at the position where the guiding wire is connected to the antenna element. Moreover, the guiding wire is arranged in the spiral groove, and when the skin is wrapped outside the foam filling body, the guiding wire is directly encapsulated, with a simple structure and easy to implement.

[0022] The radome provided by the present utility model uses polymethacrylimide resin as the preparation material for the foam filling body and quartz fiber as the preparation material for the skin; it has the characteristics of light weight and good wave transmission performance. The radome has an advanced and scientific structural design, can meet the high wave transmission index required by the antenna, and can also meet the environmental requirements in terms of strength. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a radome with a spiral antenna according to the present utility model;

[0024] Figure 2 It is a sectional view of a radome with a spiral antenna according to the present utility model;

[0025] Figure 3 Schematic diagram of the guiding wire structure of the present utility model;

[0026] Figure 4 Another perspective structural diagram of the guiding wire of the present utility model;

[0027] Figure 5 Schematic diagram of the limiting plate structure of the present utility model.

[0028] Reference numerals:

[0029] 1. Foam filling body; 11. Spiral wire groove; 12. Hollow structure; 13. Skin lining; 14. Installation base; 2. Antenna element; 3. Guiding wire; 4. Skin; 5. Limiting plate; Specific embodiments

[0030] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments. The following describes the specific embodiments of the present utility model for the convenience of those skilled in the art to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present utility model are within the scope of protection.

[0031] As Figure 1 and Figure 2 shown, this embodiment provides a radome with a spiral antenna; in this radome, the guiding wire 3 is arranged in the spiral wire groove 11, and the spiral wire groove 11 supports the guiding wire 3, reducing the acting force between it and the antenna element 2, and avoiding breakage at the connection position between the guiding wire 3 and the antenna element 2; specifically, it includes:

[0032] Foam filling body 1, antenna element 2, guiding wire 3, skin 4 and limiting plate 5;

[0033] Among them, an installation cavity is opened at the top of the foam filling body 1; the antenna element 2 is arranged in the installation cavity; a guiding wire 3 is connected to the bottom of the antenna element 2, and the structure of the guiding wire 3 is as Figure 3 and Figure 4 shown; the guiding wire 3 is distributed in the spiral wire groove 11 spirally opened around the foam filling body 1; the periphery of the foam filling body 1 is wrapped with a skin 4. As Figure 5 shown, a limiting plate 5 is fixed to the bottom of the antenna element 2, and a limiting groove is opened in the limiting plate 5; one end of the guiding wire 3 passes through the limiting groove and is connected to the antenna element 2; when the guiding wire 3 is pulled, the force received by the guiding wire 3 acts on the groove wall of the limiting groove, reducing the pulling effect of the guiding wire 3 on the antenna element 2; ensuring that it is not easy to break between the guiding wire 3 and the antenna element 2.

[0034] The bottom of the foam filling body 1 is a hollow structure 12, and the spiral wire groove 11 is arranged around the hollow structure 12; this design makes the overall weight of the radome light, with less material and lower cost for the foam filling body 1.

[0035] An installation base 14 is provided at the bottom of the foam filling body 1, and the installation base 14 is provided with rivet holes.

[0036] A skin lining 13 is provided on the inner wall of the hollow structure 12; the skin lining 13 is designed inside the foam filling body 1, increasing the sealing of the guiding wire 3 and the antenna element 2.

[0037] The material of the foam filling body 1 is polymethacrylimide resin; the polymethacrylimide resin is light in weight and high in hardness. Using it to make the foam filling body 1 can realize the lightweight of the radome, and at the same time ensure that the radome has a certain strength.

[0038] The material of the skin 4 is quartz fiber; the quartz fiber has good wave transmission performance and has little influence on the propagation of electromagnetic waves.

[0039] Preferably, the outer shape of the foam filling body 1 is a frustum structure or a cylindrical structure with a gradually increasing diameter from top to bottom.

[0040] Those of ordinary skill in the art will realize that the embodiments here are to help readers understand the principles of the present utility model, and it should be understood that the protection scope of the present utility model is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific deformations and combinations without departing from the essence of the present utility model according to these technical revelations disclosed in the present utility model, and these deformations and combinations are still within the protection scope of the utility model.

Claims

1. An antenna radome with a helical antenna, characterized in that: It includes a foam filling body (1), and an installation cavity is provided at the top of the foam filling body (1); an antenna element (2) is arranged inside the installation cavity, and a guiding wire (3) is connected to the bottom of the antenna element (2); the guiding wire (3) is distributed in a spiral wire groove (11) spirally formed around the foam filling body (1); a skin (4) is wrapped around the periphery of the foam filling body (1).

2. The radome with a helical antenna according to claim 1, characterized in that: A limiting plate (5) is fixed to the bottom of the antenna element (2), and a limiting groove is provided in the limiting plate (5); one end of the guiding wire (3) passes through the limiting groove and is connected to the antenna element (2).

3. The radome with a helical antenna according to claim 1, characterized in that: The bottom of the foam filling body (1) is a hollow structure (12), and the spiral wire groove (11) is arranged around the hollow structure (12).

4. The radome with a helical antenna according to claim 3, characterized in that: An installation base (14) is provided at the bottom of the foam filling body (1), and rivet holes are provided in the installation base (14).

5. The radome with a helical antenna according to claim 3, characterized in that: A skin lining (13) is provided on the inner wall of the hollow structure (12).

6. The radome with a helical antenna according to claim 1, characterized in that: The outer shape of the foam filling body (1) is a frustum structure or a cylindrical structure with a gradually increasing diameter from top to bottom.

7. The radome with a helical antenna according to any one of claims 1 to 6, characterized in that: The material of the foam filling body (1) is polymethacrylimide resin.

8. The radome with a helical antenna according to any one of claims 1 to 6, characterized in that: The material of the skin (4) is quartz fiber.

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