Microwave cable assemblies are thinner, lighter: unchanged insertion loss

October 30, 2014 // By Graham Prophet
W. L. Gore & Associates (Gore) has introduced a smaller diameter cable to its Gore-Flight Microwave Assembly, 6 Series portfolio. This new cable solution delivers the lowest insertion loss for an assembly using Size 8 RF contacts. Insertion loss is maintained during and after installation, ensuring reliable performance for the life of the system.

The robust construction of these assemblies reduces total costs by withstanding the challenges of installation, preventing costly production delays, field service frequency, and the need for purchasing replacement assemblies.

The Gore-Flight Microwave Assembly, 6 Series is suited for aerospace applications where compact profile and light weight constructions are top design priorities. The new compact option in this line measures 6.1 mm in diameter, weighs 60 g/m and offers a minimum bend radius of 25.4 mm. Typical, guaranteed and installed insertion loss for this model is rated at 0.342 dB/ft, 0.384 dB/ft and 0.354 dB/ft, respectively.

Physical damage to the cable assembly during installation can result in impedance changes. Compared to alternative airframe assemblies, Gore-Flight Microwave Assemblies, 6 Series maintain a consistent impedance of 50 ± 1Ω, providing excellent VSWR characteristics and eliminating insertion loss stack-up issues when assemblies are cascaded or routed through airframe bulkheads. Shielding effectiveness is rated at 90 dB up to 18 GHz.

Applications for Gore-Flight Microwave Assemblies, 6 Series include: airborne electronic surveillance/counter measures; radar warning (electronic defence) systems; missile approach warning systems; radar interconnects; electronic/signal intelligence; and navigation/communication systems.

Gore; http://gore.com/gore-flight A Cable Installation Simulator is at; http://gore.com/simulator