NEWcel® Foamed Dielectrics

NEWcel® is a closed-cell foamed dielectric material specifically designed to reduce dielectric constant and dissipation factor yielding low-capacitance, low-loss, high velocity of propagation (VOP) coaxial, triaxial, and twinaxial offerings.

Air is a near perfect dielectric medium allowing a signal to propagate through it at approximately the speed of light. However, an air dielectric is impractical for use as cable insulation as it provides no structural integrity. Thus, manufacturers have to resort to using materials with higher dielectric constants (lower VOP) to meet physical restrictions. Typical coaxial, triaxial, and twinaxial cables are manufactured using low dielectric constant (2.0-2.6) materials that possess inherently better electrical properties than standard insulation material such as PVC.

NEWcel® is the perfect solution. Using highly controlled extrusion processes, these materials are foamed yielding a dielectric medium with a high air concentration. The result of this process is a significantly reduced dielectric constant (1.43-1.75) that approaches the nearly ideal properties of air without sacrificing structural integrity. This reduced dielectric constant results in lower capacitance, smaller builds, and improved attenuations when compared to solid insulations.

Product Advantages:

• Reduces Attenuation
• Reduces Cable Size
• Reduces Capacitance
• Wide Temperature Range

A comparison of the propagation velocity of a signal through NEWcel® and equivalent solid dielectric materials.

An estimated percent decrease in dielectric diameter resulting from switching to NEWcel® from equivalent solid dielectric materials if the characteristic impedance is constant.