Radar radome unit piece and manufacturing process, connecting method and dividing method thereof

Abstract

A radome unit element, which is an arbitrary spherical polygon with overlapping edges on the periphery, is made of double-layer glass steel plates and foam sandwich layers, and the overlapping edges are divided according to the position of the unit element on the radome. The upper lap joint and the lower lap joint are pre-embedded with several stainless steel nuts, and the lower lap joint is pre-embedded with metal wires and has several connection holes. The invention also proposes a manufacturing process, a division method and a connection method of the unit element. The present invention realizes the division of adjacent sides without parallel lines by adopting comprehensive measures such as new unit structure, new division method, manufacturing process and connection method, improves the electrical performance of the radome, and enhances the overall strength of the radome , improved wind resistance and anti-leakage ability; beautiful appearance; easy installation, no need to build a scaffolding outside the radome during installation, which greatly saves installation time, and can be disassembled repeatedly.

Description

technical field [0001] The invention relates to a radar radome capable of eliminating the influence of the environment on a radar antenna, in particular to a radar radome unit made of glass fiber reinforced plastic and its manufacturing process, connection method and division method. Background technique [0002] The ground radar radome can eliminate the influence of the environment on the radar antenna, so that the radar antenna can work normally under complex and harsh weather conditions. Large-scale radome is generally made of materials with high electromagnetic wave transmittance, and its shape is truncated spherical, with a diameter ranging from a few meters to more than 20 meters. In order to facilitate transportation and installation, it is generally assembled from several single components. Due to the special working conditions of the radome, the requirements for its electrical performance, weather resistance and structural strength are relatively strict. The struc...

AI Technical Summary

Problems solved by technology

The connection method between each unit unit adopts figure 2 Flange screw connection of A or figure 2 The cover screw connection method of B; the appearance quality of the radome formed by this connection method is poor, and the production cost is high. During installation and construction, it is required to build a full house of scaffolding inside and outside the radome, and it needs to be matched on site. Holes, low construction efficiency, affect the structural strength of the radome

At the same time, tests have proved that the sides parallel to each other between the unit elements will increase the sidelobe of the received waveform, so there is a disadvantage that it cannot be used for low-sidelobe radars; the current method of dividing the sphere to obtain the unit elements generally uses latitude and longitude segmentation method or quasi-random segmentation method, the result is that the size of the single element is different, there are many specifications, and the production efficiency is reduced; the adjacent sides are parallel to each other, which increases the side lobe of the received waveform, increases the transmission loss, and affects the electrical performance of the antenna.

Images