The superiority of SMC satellite antenna

    SMC, or sheet molding compound, is made of unsaturated polyester resin, glass fiber roving, initiator, plastic and other matching materials through a special equipment SMC molding machine to make a sheet, and then thicken, cut, put The metal pair mold is made by high temperature and high pressure curing.

    SMC and its molded products are emerging glass fiber reinforced plastics (commonly known as glass fiber reinforced plastics). The processing methods of glass fiber reinforced plastics can be divided into: hand lay-up molding, injection molding, pultrusion molding, winding molding, resin transfer molding molding, compression molding, etc. Way. SMC and its molded products have the following characteristics: light weight, high strength, accurate size, good batch quality consistency, and the product can reach zero shrinkage. It has a high degree of mechanization and automation with A-level surface level, and is suitable for products with high surface quality requirements, large output, and uniform thickness.

High precision, high efficiency, high gain

The most important task of using SMC to manufacture antennas is to give full play to its characteristics in product design and process production and to meet the requirements of antenna type high precision. In the mold size design, the shrinkage rate of the material and the molding shrinkage rate of the SMC are stable. After molding, the shape of the SMC antenna reflecting surface deviates from the original design parabola. That is, the accuracy of the SMC molded antenna is completely guaranteed by the mold accuracy. .

The root mean square value of the integral reflective surface of the SMC antenna molded is 0.25mm, the root mean square value of the single-piece reflective surface of the split-lobe antenna is less than 0.3mm, and the root mean square value of the reflective surface after assembly is less than 0.6mm.

Anti-corrosion

Traditional antenna materials such as aluminum plate and steel plate are metal materials, which are prominent in terms of acid, alkali, salt, and even corrosion resistance, as well as SMC as a non-metallic dielectric composite material. The American Pikington Laboratory analyzed the surface of the SMC material with infrared rays and found that the surface is covered by additives, resins, and ultrafine calcium acid fillers, which have good acid resistance, water resistance, and corrosion resistance. The antenna reflection made of this material solves the problem. The shortcomings of traditional metal antennas that are easy to corrode. In coastal areas, rainy, humid areas, and acid rain areas, the corrosion advantages of SMC molded antennas are particularly prominent.

American Podlin Company has done more severe anti-corrosion tests. At a high temperature of 50°C, the SMC molded antenna samples were placed in 130 highly corrosive chemical environments. The results showed that the test samples had little or no changes.

long life

General aluminum antennas in coastal areas range from 2 to 3 years, and as many as 4 to 6 years. They will generally be damaged due to salt spray erosion and aging. The most obvious example is the cable television (CATV) in Taiwan, which was built early. In the Mainland, it is estimated that there are nearly 1,000 satellite TV receiving antennas on the entire island, all of which were built in the mid-1980s. They were all aluminum plate antennas. By the early 1990s, they had begun to be replaced.

The service life of SMC molded antennas is generally more than 15 years; the SMC molded antennas trial-produced by PRODLIN in 1985 are still working normally, and they are subject to typhoons and heavy rains every year.

Strong wind resistance

Due to the design of multiple longitudinal and circular rib structures on the antenna reflecting surface during the molding process, the SMC antenna can withstand wind loads up to 45 meters per second according to the calculation of the structural strength, which shows its remarkable structural rigidity and strength.

Special reflective layer technology

The SMC antenna reflective surface uses a metal aluminum mesh as the electromagnetic wave reflection layer, and the aluminum mesh in the finished antenna is evenly embedded under the surface SMC, which can reflect electromagnetic waves and isolate the atmosphere, which plays a good protective role.

Good consistency, no deformation, easy to transport and install

Because the SMC antenna adopts the film pressure technology under high temperature and high pressure, its material characteristics and processing technology determine that the SMC antenna has unparalleled consistency with other antennas, which not only guarantees the accuracy and high gain of the antenna, but also is very easy to install debugging. The SMC glass fiber reinforced plastic material has the characteristic of non-deformation, which eliminates the adverse effects on the satellite receiving system due to the deformation of the antenna during transportation.

Hebei Yuniu Fiberglass Manufacturing Company Limited is a fiberglass material manufacturer with over 10-year experience, 7- year exporting experience.

We are manufacturer of fiberglass raw materials, Such asfiberglass roving, fiberglass yarn, fiberglass chopped strand mat, fiberglass chopped strands, fiberglass black mat, fiberglass woven roving, fiberglass fabric, fiberglass cloth..And so on.

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