HELIAX® 50 ohm air and foam dielectric cables feature the deepest corrugations in the industry for the best combination of electrical and mechanical advantages. HELIAX coaxial cables and connectors minimize intermodulation generation by using solid conductors. HELIAX coaxial cables have a solid corrugated copper outer conductor to protect against electromagnetic interface and radio frequency interference (EMI and RFI). HELIAX coaxial cables offer excellent phase stability over temperature variations and with bending.