19 Nov 2012

Molex Launches New Temp-Flex Microwave Coax Cables

Having recently acquired Temp-Flex, Molex has launched a new set up microwave coax cables.

These coax cables have been designed for high bandwidth applications and they are said to deliver exceptional performance.

As a result of the performance of these new microwave coax cables, they lend themselves to operation in a variety of areas from aerospace and military to robotics and medical markets.

The new Temp-Flex microwave coax cables are available in a variety of formats. The cables can come with a solid core fluoropolymer resin dielectric where low loss is important. Alternatively the cables can have an air enhanced fluoropolymer resin layer which is applied over dual monofilaments. This provides ultra-low loss operation.

The high purity level achieved by the fluoropolymer resin provides a low dissipation factor and enables the cable to achieve its low loss characteristics. In addition to this, the manufacturing processes are very consistent and enable the cable properties to be held within very tight tolerances which can be important for some applications.

Another advantage of the cables which could be of importance in some applications is the minimal phase change versus and flexing of the cable. This can cause an issue in some applications where phase matching is a key parameter.

In addition to the use of the high performance dielectric, the coax cables also use a helically wrapped silver plated copper flat wire shield and braid. These are applied to all cables to enable them to achieve very low levels of radiation and high levels of shielding.

The standard solid core microwave coax cable has a velocity factor or velocity of propagation factor, VOP of 70% while the air enhanced version achieves a velocity factor between 85 and 88%.

The specifications for these specialist cables include an impedance of 50Ω ±1Ω, very tight phase stability, a shielding effectiveness of better than 100dB and a potential bandwidth up to 110 GHz.

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