elspec Whitepaper

Facts about PTFE coaxial cables - Whitepaper #1

Coaxial cables with low losses and a broad temperature range usually use PTFE (Polytetrafluoroethylene) as the isolating material. At elspec we also use PTFE: for the last 32 years it has been the most frequently-ordered basic material besides copper, silver and steel. It is indispensable as requirements have become in-creasingly high, and precise, stable measurements are a necessity.

Therefore, it is of particular concern for the RF-specialist elspec to give an overview of the latest re-search about, and applications of PTFE. We wish to share insights about the properties and the limita-tions of this material, and summarize the various publications on the topic.

The combination of a silver-plated copper wire with a mantle made of PTFE is a highly interesting mix. Both materials are very different. PTFE is the insulator in RF-technology and has, in addition to many advantages, also a few special basic characteristics which the user should definitely be aware of: e.g. the PTFE-knee or the pre-aging required to achieve phase-stability in measurement cables.

In order to view all whitepapers and use other knowledge for free, please register or login to your account.


Thank you for your interest in our products

How can we support you? Please take a few minutes to briefly describe your request here.