Ultra-low-loss flexible microwave coaxial cable assemblies

August 02, 2013 // By Graham Prophet
Delivering up to 88% velocity-of-propagation, Temp-Flex air-dielectric ultra-low-loss flexible microwave coaxial cables exceed stringent aerospace and defence specifications

Molex has launched a line of microwave cable assemblies that uses its Temp-Flex air-dielectric ultra-low-loss flexible microwave coaxial cables featuring a patented dual monofilament air-enhanced design and a helically wrapped shield. The Temp-Flex coaxial cables achieve 85 to 88 percent velocity of propagation (VOP) for increased signal speed.

Molex developed Temp-Flex air-dielectric ultra-low-loss flexible microwave coaxial cables for device manufacturers specifying microwave coaxial cables in high frequency aerospace, defence and commercial applications, including radar, military vehicles, satellites, space, missile, radio frequency (RF) ablation, test and measurement equipment.

Molex coax cable solutions provide stable electrical performance with minimal impedance and insertion loss variation in dynamic applications. Highly consistent manufacturing processes ensure the smallest mechanical tolerances in 0.047in., 0.086in., and 0.141in. shield OD (outside diameter) constructions. The flexible microwave coaxial cables offer 100 dB or greater shielding effectiveness and protect signals from internal and external interference.

The highly reliable return-loss performance of the Temp-Flex coaxial cables optimises VSWR (voltage standing wave ratio) characteristics for the complete end-to-end interconnect. The helically wrapped flat-wire shield with braid results in excellent shielding effectiveness, enhanced flexibility and superior electrical performance compared with semi-rigid microwave coaxial solutions.

“Meeting requirements for strong signal performances with limited signal loss is a growing challenge in high-frequency applications,” states Jeet Sanyal, engineering manager, Temp-Flex. “Industry leading Temp-Flex microwave coaxial cables deliver up to 88 percent VOP – exceeding stringent aerospace and defence specifications while achieving optimum phase stability and bandwidth. Flexible Temp-Flex microwave coaxial cables surpass performance criteria in the marketplace for VOP results, tight dimensional and electrical control, minimum VSWR and low insertion loss.”

Temp-Flex air-dielectric ultra-low-loss flexible microwave coaxial cables are now available as assemblies from Molex in select cable sizes and connector types. Insulated with a fluoropolymer dielectric, Temp-Flex cables provide a complete end-to-end solution.

Molex; www.molex.com/link/tempflex/microwavecoax.html