Method for manufacturing high-precision antenna reflector

Abstract

This invention discloses a making method of a high-precision antenna's specula surface, and relates to the facture of high-precision and light specula surface facture in communication and detection fields. It is based on the skin curve surface stretching die location, uses sticking agent and the cellular interlayer as the medium, the skin curve surface as the working side of the reflecting unit, and it adopts the vacuum subatmospheric pressure technique to make the high-precision specula surface on the supporting bone curve surface. This invention has high precision, and is suitable for all kinds of antenna with vary of curving ratio, calibers and shapes. The specula surface is simple, thin and light. The processing technique is easy, the equipping and adjusting methods are convenient, low cost.

Description

technical field [0001] The invention relates to a method for manufacturing a high-precision antenna reflector in the field of communication and measurement and control, and is especially suitable for reflector antennas of various calibers and various forms working in the high-frequency band, especially the Ka frequency band, as high-precision, high-rigidity, high-precision antennas. Mass production of antenna reflectors for light weight and outdoor work. Background technique [0002] With the rapid development of communication and measurement and control technology, the working frequency band is getting higher and higher, so the requirements for the high precision of the antenna reflector are getting higher and higher. At present, the reflector of the reflector antenna working in the high frequency band, especially in the Ka frequency band There are only traditional mechanical processing methods and flexible mold processing methods for manufacturing antenna reflectors. These...

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Problems solved by technology

[0005] ① During the molding process and after molding, the material is always in its elastic deformation range. The high-precision profile of the reflective surface is only maintained by the adhesive force of the adhesive. Therefore, the formable curvature of the reflective surface is small and the internal stress is relatively small. Large size and small applicability to antenna forms are the key technical weaknesses of this method

[0006] ②The stiffness of the reflective surface is mainly provided by the thickness of the honeycomb interlayer. The high-rigidity reflective surface must be supported by a thicker honeycomb structure, so the reflective surface is large in size and heavy in weight, which is extremely unsuitable for the overall structural design of the antenna structure system and user requirements.

[0007] ③The aluminum plate on the working surface of the reflective surface has special and strict index requirements, and the flexible mold must have high adjustment and working environment requirements, and the manufacturing cost is high, which is not suitable for general factory environmental conditions and mass production

[0008] ④The reflective surface of large and medium-sized antennas is generally divided into multiple smaller reflective surface units for adjustment and assembly. There must be a reflective surface adjustment mechanism between the reflective surface unit and the antenna back frame, but this method is due to the thin plate of the reflective surface and its honeycomb structure, so that the connection between the reflecting surface unit and the adjustment mechanism is very poor, the strength is low, the reliability is low, and it does not meet the requirements of the technical conditions of strong wind load

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