2026-09-21
Although wireless networks are replacing wired ones, low-loss RF coaxial cables remain essential inside wireless systems: access points, amplifiers, and antennas must be interconnected by cables, and ordinary cables in antenna systems cause signal loss.
Early RG-series standard cables suffer increasing attenuation over distance — acceptable for short runs, but wireless applications demand that signals reach the antenna at consistent strength. Low-loss coaxial cables with lower attenuation and superior shielding were developed to replace traditional RG cables, mostly with solid center conductors to further reduce attenuation.
Low-loss cables use 3-digit series numbers: the 400 series is thicker with lower loss than the 200 series, which in turn outperforms the 100 series. Thicker means lower loss but also heavier and less flexible.
These cables are widely used in WLAN, cellular, PCS, and ISM wireless systems, and are the mainstream choice for base station feeders and antenna systems.