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Microwave coax cables push signal speeds

Posted: 04 Jul 2012 ?? ?Print Version ?Bookmark and Share

Keywords:coaxial cables? fluoropolymer resin? automatic test equipment?

Temp-Flex LLC, a subsidiary of Molex Inc., introduces low loss and ultralow loss microwave coaxial cables that are said to deliver faster speed and electrical performance for military and aerospace, defense, automatic test equipment and medical applications.

The microwave coaxial cables are available with either a low loss solid core fluoropolymer resin dielectric or an ultralow loss air enhanced design with a fluoropolymer resin layer applied over dual monofilaments around the center conductor. These options provide for increased signal speed, with the fluoropolymer resin offering a low dissipation factor and ensuring less energy loss. Highly consistent manufacturing processes are used to maintain tight mechanical tolerances yielding extremely stable electrical performance.

The cables also offer phase stability; impedance tolerance of 50 1; tight time delay tolerance; FEP as an alternative to PTFE and ePTFE; bandwidth potential up to 110GHz; and stability under dynamic conditions.

The cables are designed for monitoring and control of radar, military vehicles, satellite, space, missile, RF ablation and test and measurement equipment. A helically wrapped silver-plated copper flat wire shield and braid are applied to all cable sizes to achieve superior shielding effectiveness. The standard solid core (low loss) construction coaxial cable delivers 70 percent velocity of propagation (VOP), while the air enhanced dual monofilament design (ultra-low loss) achieves 85 to 88 percent velocity of propagation and improved insertion loss at high frequencies.

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