High-Quality Air Dielectric Coaxial Cable | Low Loss & Reliable

Air dielectric coaxial cable embodies advanced RF transmission technology, leveraging air's intrinsic dielectric properties to achieve unparalleled high-frequency performance. The fundamental design segregates central and outer conductors primarily through air space, supported minimally by dielectric spacers, thus minimizing signal energy conversion to heat. This results in exceptionally low loss coefficients, broad bandwidth capability, and high power transmission capacity. Typical constructions incorporate helical polyethylene supports or ceramic bead insulators at strategic intervals to maintain structural integrity while preserving air volume. These cables are extensively utilized in critical connectivity segments: between base station antennas and transceivers in 4G/LTE and 5NR networks, within high-power broadcast transmission systems, and for interconnecting sensitive measurement equipment in EMC testing laboratories. Documented implementations include their use in distributed antenna systems for stadiums and airports, where long cable runs necessitate minimal signal degradation. In satellite ground segment infrastructure, air dielectric cables link block upconverters and high-power amplifiers to antenna feeds with negligible added noise. For radar systems, especially in naval and aviation applications, they ensure high-fidelity pulse transmission with minimal distortion. Key selection parameters include frequency range, average/peak power requirements, environmental sealing class, and flexibility needs. Our product lines address these diverse requirements with options for pressurization, various connector types (4.3-10, SC, etc.), and different outer conductor configurations. To determine the optimal air dielectric cable specification for your application and receive detailed pricing based on quantity and configuration, we recommend scheduling a technical discussion with our engineering team.