Independence And Application Range Of Semi-rigid RF Cable Assemblies

The most basic structure of semi-rigid RF cable assemblies is a coaxial transmission line composed of metal tubes. Wherein, the metal tube is usually a copper tube forming an outer conductor, and there is a wire conductor along the center line of the copper tube. It is shown that the central wire conductor is supported by the dielectric material and thus maintained on the same central axis of the outer conductor as described above.

It is extremely important to realize that semi-rigid RF cable assemblies are themselves an important microwave component. This means that the size of the semi-rigid cable is as important as the size of other couplers, bridges, and even amplifiers. If made properly, the cable can successfully exert a predictable stabilization effect in connecting other components of the system. As long as other good link budget analysis has been studied, it can be found that at a given frequency, electrical parameters including attenuation and VSWR play a particularly important role in the transmission and reception of RF signals.

More perceptible than semi-rigid cables and standard RG-style cables: 1 connection per connection when installing semi-rigid RF cable assemblies with soldered connectors, where space is appropriate and care must be taken to perform thermal cycling and other conditions that require testing A crimp-type RF connector for flexible (non-semi-rigid) coaxial cables can be installed in a minute or less.

Semi-rigid RF cable assemblies generally support RF signal transmission within 65 GHz. In addition, although not commonly used, RF cable assemblies terminated with 1.0mm connectors enable high frequency applications up to 110GHz. Semi-rigid coaxial cables are available in various sizes, with diameters ranging from 0.020 inches to 0.250 inches.

In addition, 0.047-inch diameter cables with smaller connectors are becoming more and more popular with customers because they can accommodate higher frequencies. The 0.141-inch diameter semi-rigid coaxial cable is terminated with high frequency SMA or 2.92mm connectors and can generally be used up to 27GHz. 0.086" diameter semi-rigid coaxial cable, although commonly used with SMA connectors, can operate up to 65GHz when terminated with 1.85mm connectors.