Engineered to facilitate the simultaneous transmission of high-frequency RF signals and DC electrical power through a single coaxial cable, these professional Bias Tees serve as a critical component in active antenna systems and 5G network architectures. These 3-port diplexing devices are strategically deployed to “inject” DC current into the signal path to power remote masthead amplifiers (MHAs) or low-noise amplifiers (LNAs) while ensuring the cleanest possible signal environment by utilizing internal high-pass and low-pass filter networks that prevent DC leakage into sensitive RF test equipment.

Key features include an ultra-wide RF bandwidth extending from 10 MHz up to 18 GHz (with precision millimeter-wave variants reaching 40 GHz) and high DC current handling capabilities, typically supporting up to 2.5A at 100V DC. Engineered for carrier-grade reliability, they are constructed with high-shielding aluminum or stainless steel housings to maintain a low insertion loss (≤ 0.5 dB) and high return loss across the operating band. Built with precision-machined mechanical interfaces—including SMA, N-Type, and 4.3-10—these rugged units provide a secure, low-loss solution for 5G small cells, satellite ground stations, and laboratory-grade active component testing where isolation between the DC and RF ports is mandatory.