Low-loss signal transmission cable - has low loss characteristic provided by coating each core with thin layer of magnetic amorphous material

摘要

The multi-core information cable with low loss characteristics is suitable for high frequency transmissions, is produced by coating the conductor with a layer of an amorphous metal compound. Each individual core consists of an inner strand of high conductivity metal (4) that is cooled and passed through a stage where a magnetic amorphous metal coating is deposited. An extrusion process completes the production by overlaying the strand with an insulating layer of polyethylene material. In order that high losses are avoided, the magnetic coating must be thin, ie. between 5 and 50 microns.