To transmit signals from point A to point B, one could use two parallel wires. This approach even works in the RF range if impedance is carefully controlled. However, the downside is that the electromagnetic field radiates outward, making it vulnerable to nearby disturbances and environmental interference. Waveguides, on...

Coaxial cables with low losses and wide temperature range performance typically rely on PTFE (Polytetrafluoroethylene) as an insulation material. At elspec, PTFE has been the most frequently used core material—alongside copper, silver, and steel—for over 32 years. With industry demands for precise and stable measurements becoming increasingly rigorous, PTFE...