A flat-panel slot antenna and its processing technology

Abstract

The invention provides a process for manufacturing a panel split antenna. The method comprises the following steps: (1) injecting molten injection-molding metal resin into a die of an injection-molding machine and curing for molding, making an antenna frame, an antenna feed part and a waveguide interface by injection molding, and cooling the injection-molding metal resin and metallizing to form an integrated panel split antenna; (2) performing surface coating on the panel split antenna. The manufacturing process provided by the invention produces the panel split antenna by integral injection molding, ensures that the produced panel split antenna has an integrated structure, does not need fixed connection, and eliminates the braze-welding procedure, therefore, braze-welding equipment is not needed to be purchased and the manufacturing cost of the panel split antenna is reduced. Besides, the environmental pollution is avoided, the batch production is achieved, the product has light weight and small size and meets the precision requirements, and the application of vehicle-mounted and aircraft-mounted panel split antenna is accelerated. The invention also provides a panel split antenna. The panel split antenna is an integrated structure manufactured by the manufacturing process provided by the invention.

Description

technical field [0001] The present invention relates to the technical field of flat-panel slot antennas, and more specifically, relates to a processing technology of flat-panel slot antennas, and also relates to a flat-panel slot antenna manufactured by the above-mentioned processing technology. Background technique [0002] Flat plate slot antenna is one of the main forms of radar antenna. It has the characteristics of high efficiency and low sidelobe, and it is widely used. The flat plate slot antenna is mainly composed of antenna feed part, antenna skeleton and waveguide interface; among them, the antenna feed part is a structural unit of n groups with length L, width b, and height h, and radiation, coupling and excitation cracks are set on the side of length L, It is used to realize the functions of radiation, line source, feed waveguide, and power division; the antenna skeleton is the supporting carrier of the antenna feed part, and the antenna skeleton has a mechanical...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of applying the above-mentioned processing technology, it is necessary to use brazing forming, and the cost of brazing forming equipment is high, and the technical maintenance cost is also high; thus resulting in high cost of the flat plate crack antenna

[0005] In addition, most of the vacuum furnace brazing uses Mg vapor as an activator, which will pollute the environment; while salt bath brazing will discharge waste water and waste gas, which will also pollute the environment

At the same time, limited by the capacity of the brazing furnace, only small batches of production can be realized, resulting in low production efficiency of the flat plate crack antenna

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