Evertighter space conditions and rising operating frequencies made it necessary to extend the range of Huber+Suhner's wellknown Sucoform cable family. The company's new Sucoform 47Cu variants now give full consideration to this market need as well.
Sucoform microwave cables offer clear mechanical advantages over our semi rigid cables," says Daniel Ulmer, Industrial, Space + Defence Components. "They are based on the same design as the PTFE-insulated semi rigid cables, but are provided with a tin-plated braid as an outer conductor instead of the tube. They can easily be bent several times by hand without requiring the use of any expensive tools, enabling them to be readily incorporated in devices."
"Thanks to the ensured maximum phase stability across every production lot, Sucoform cables are especially suited to phase-sensitive antenna cabling systems," he adds. "One significant advantage is that they can be manufactured in long lengths. This makes them the ideal choice for demanding signal delay lines."
Sizes
Possible applications span the entire range from prototyping, pilot lots and very small production runs to large-volume manufacture in the fields of telecommunications, military, measuring instrument wiring and devices for scientific experiments. The cable sizes 2,2 mm and 3,6 mm are those applied most frequently worldwide. If high power has to be transmitted, or if transmission losses are to be minimised, size 6,35 mm is used. The new 1,2 mm cable, applied as a space-saving variant with optimised frequency, completes the Sucoform cable range. In addition to the typical 50 and 75 Ω cables, versions are also available with 35, 60 and 100 Ω for special applications.
Inner conductors and jacketing
"In some applications, the silver-plated copper-clad steel wire used for the inner conductor may cause disturbance, either because of its magnetic characteristics or as a result of the limited intermodulation characteristics," notes Ulmer. "For such cases, a steel-free cable type is available with a silver-plated copper wire inner conductor."
Sucoform microwave cables are not always used in protected environments. For example, adds Ulmer, inside mobile radio antennas, moisture or even condensate may occur. In addition, different voltages may have to be insulated from each another. A wide range of materials such as PE (polyethylene), FEP (fluorinated ethylene propylene) or LSFH (low smoke free of halogen) give the Sucoform cables added protection.
Suhner offers customers three different cable variants: Sucoform 47-Cu-01 for use in telecom applications up to 4,0 GHz; Sucoform 47-Cu for a wide variety of applications (eg, radio links) up to 40,0 GHz; and Sucoform 47-Cu-LSFH which offers additional protection by LSFH jacket, up to 40,0 GHz. A broad range of connectors has also been developed for, and matched to, the Sucoform cables.
For more information contact Marie Rossow, Dartcom, 012 665 2771, marie.rossow@cie.co.za
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