Radome for microwave antenna

Abstract

The utility model relates to a radome for a microwave antenna, which comprises a base, an outer cover and an umbrella cover, the outer cover is cylindrical, the lower end of the outer cover is connected with the base, the outer surface of the umbrella cover is hemispherical, the umbrella cover is detachably mounted at the upper end of the outer cover, a plurality of micropores are arranged on the periphery of the outer cover, and a fabric cover is filled in the outer cover. Micropores are formed in the outer cover, the penetrating path of microwave signals is optimized, reflection and refraction of the microwave signals on the surface of the outer cover are reduced, air permeability of the interior of the outer cover is guaranteed, meanwhile, a fabric cover is arranged, the micropores are blocked, and field sand wind and the like are prevented from entering the outer cover through the micropores.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna housing technical field, especially the antenna housing for microwave antenna. BACKGROUND

[0002] Antenna housing is the structure that protects the antenna system from the influence of external environment. It has good electromagnetic wave penetration characteristics in electrical performance and can withstand the action of external harsh environment in mechanical performance. Outdoor antennas are usually placed in open air and directly subjected to the invasion of natural wind and rain, snow, sand and solar radiation, resulting in reduced antenna accuracy, shortened service life and poor working reliability. The current antenna housing can be divided into inflatable antenna housing or shell structure antenna housing. The inflatable antenna housing is made of fabric, but its structural strength is poor, and it is greatly reduced in service life under the damage of wind and sand and rain in the field environment. Although the closed shell structure antenna housing meets the structural strength requirement when used in the field, the microwave signal passing performance is not good, and further improvement is needed for the above-mentioned situation. SUMMARY

[0003] Therefore, it is necessary to provide an antenna housing for microwave antenna aiming at the above-mentioned problems.

[0004] The antenna housing for microwave antenna comprises a base, an outer cover and an umbrella cover. The outer cover is in a cylindrical shape, the lower end of the outer cover is connected with the base, the outer surface of the umbrella cover is in a hemispherical shape, the umbrella cover is detachably installed on the upper end of the outer cover, the outer periphery of the outer cover is provided with a plurality of micropores, and the outer cover is filled with a fabric cover.

[0005] Preferably, the outer cover is made of glass steel, and the fabric cover is made of aramid fiber composite material.

[0006] Preferably, the micropores are in a horn shape, and the diameter of the micropores gradually increases from the inner wall of the outer cover to the outer periphery.

[0007] Preferably, the inner wall of the outer cover is provided with a plurality of ribs in the axial direction, a plurality of notched grooves are arranged on the ribs at intervals, and the fabric cover is expanded by the cooperation of the notched grooves and the inner support ring.

[0008] Preferably, the top of the rib is provided with a bolt hole, and a bolt is inserted into the bolt hole through the umbrella cover.

[0009] The utility model has the advantages that the micropores are arranged on the outer cover, the penetration path of the microwave signal is optimized, the reflection and refraction of the microwave signal on the surface of the outer cover are reduced, the air permeability of the inner part of the outer cover is ensured, the fabric cover is arranged inside to block the micropores, and the wind and sand in the field and the like are prevented from entering the outer cover through the micropores. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1Fig. 1 is a perspective view of an antenna cover for a microwave antenna according to one embodiment of the present application;

[0011] Fig. 2 Fig. 2 is an exploded view of the antenna cover for a microwave antenna according to one embodiment of the present application. DETAILED DESCRIPTION

[0012] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process operations have not been described in detail in order to not unnecessarily obscure the present application.

[0013] It is to be understood that where an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0015] As Figs. 1-2As shown, an radome for a microwave antenna includes a base 1, an outer cover 2, and a canopy 3. The outer cover 2 is cylindrical and its lower end is connected to the base 1. The outer surface of the canopy 3 is hemispherical and is detachably mounted on the upper end of the outer cover 2. The outer circumference of the outer cover 2 has several micro-holes 21, and the outer cover 2 is filled with a fabric cover 4. Specifically, the base 1 is used to connect to a foundation or mounting frame. The outer cover 2 is cylindrical and integrally formed with the base 1. The outer cover 2 has several micro-holes 21. The micro-holes 21 optimize the penetration path of microwave signals, reduce reflection and refraction of microwave signals on the surface of the outer cover 2, thereby reducing transmission loss and improving antenna gain. Furthermore, the micro-holes 21 reduce the weight of the outer cover 2, reducing the burden on the antenna system and improving the stability and reliability of the equipment. In some high-temperature environments, the antenna system may fail due to overheating. The micro-holes 21 provide ventilation and heat dissipation channels, helping the antenna system reduce temperature and maintain normal operation. A detachable umbrella cover 3 is installed on the top of the outer cover 2. The umbrella cover 3 is hemispherical to prevent water accumulation. Simultaneously, during microwave signal reception and transmission, it ensures a more uniform signal distribution in space, helping to reduce signal energy loss and interference, and improving signal transmission efficiency and stability. The separate design of the umbrella cover 3 and the outer cover 2 reduces the difficulty of mold manufacturing and lowers costs. A fabric cover 4 is filled inside the outer cover 2. The fabric cover 4 can be inflated by air or by an internal support structure. The fabric cover 4 seals the micropores 21, preventing wind and sand from entering the outer cover 2 through the micropores 21. Furthermore, the outer cover 2 is made of fiberglass. Fiberglass outer cover 2 has strong corrosion resistance, high strength, and light weight. The surface of the fiberglass outer cover 2 is smooth, making it easy to clean and maintain. The fabric cover 4 is made of aramid fiber composite material. Aramid fiber composite material is widely used in the manufacture of millimeter-wave radomes due to its low dielectric constant, good mechanical properties, and strong wave transmission capability.

[0016] like Figs. 1-2 As shown, the micro-aperture 21 is trumpet-shaped, and its diameter gradually increases from the inner wall of the outer cover 2 to the outer periphery. Specifically, the trumpet-shaped micro-aperture 21, with its larger outer diameter and smaller inner diameter, can better prevent external wind, sand, and rainwater from entering the outer cover 2 through the micro-aperture 21. At the same time, the trumpet-shaped micro-aperture 21 can better guide the propagation direction of electromagnetic waves, reduce energy loss, and thus improve the overall performance of the antenna.

[0017] like Fig. 2As shown, the inner wall of the outer cover 2 is provided with several ribs 22 along its axial direction. Several notches 221 are spaced apart on the ribs 22. The inner support ring 5 cooperates with the notches 221 to open the fabric cover 4. Specifically, the ribs 22 can strengthen the structural strength of the outer cover 2 and prevent the fabric cover 4 from fitting snugly against the inner wall of the outer cover 2, creating a certain gap for isolation. The inner support ring 5 is circular and is fitted inside the fabric cover 4. The inner support ring 5, in conjunction with the notches 221, can clamp and fix the fabric cover 4, opening and clamping it inside the outer cover 2. The operation is simple and convenient, requiring no inflation, and preventing the fabric cover 4 from leaking or collapsing in outdoor environments.

[0018] like Fig. 2 As shown, the top of the rib 22 has a bolt hole 222, and the bolt passes through the umbrella cover 3 and is inserted into the bolt hole 222. Specifically, the umbrella cover 3 and the outer cover 2 are connected by bolts, which simplifies assembly. The bolt hole is designed on the top of the rib 22, eliminating the need to drill holes on the top of the outer cover 2, thus reducing the processing difficulty of the thin-walled outer cover 2.

[0019] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A radome for a microwave antenna, characterised in that: The umbrella comprises a base, a cover and a canopy, the cover is cylindrical, the lower end of the cover is connected with the base, the outer surface of the canopy is hemispherical, the canopy is detachably installed on the upper end of the cover, the outer periphery of the cover is provided with a plurality of micro-holes, and the cover is filled with a fabric cover.

2. A radome for a microwave antenna as claimed in claim 1, characterized in that: The cover is made of glass fiber reinforced plastic, and the fabric cover is made of aramid fiber composite material.

3. A radome for a microwave antenna as claimed in claim 1, characterized in that: The micro-holes are trumpet-shaped, and the diameter of the micro-holes gradually increases from the inner wall to the outer periphery of the cover.

4. A radome for a microwave antenna as claimed in claim 3, characterized in that: The inner wall of the cover is provided with a plurality of ribs along the axial direction, a plurality of notched grooves are arranged on the ribs at intervals, and the fabric cover is expanded by the cooperation of the notched grooves and the inner supporting ring.

5. A radome for a microwave antenna as claimed in claim 4, characterized in that: The top of the rib is provided with a bolt hole, and a bolt is inserted into the bolt hole through the canopy.

Images