100khz-145Ghz 0.8mm Broadband Bias Tee

100kHz‑145GHz 0.8 mm Broadband Bias Tee from Leader‑MW

This ultra‑broadband 0.8 mm bias tee, manufactured by Leader‑MW, covers an exceptional frequency range from 100 kHz up to 145 GHz, built for demanding millimeter‑wave RF test and measurement environments. As a three‑port diplexer, it superimposes DC bias onto RF/mm‑wave signals through a single coaxial transmission path, while delivering outstanding isolation between DC and RF ports to prevent signal interference.

Equipped with precision 0.8 mm coaxial connectors, the unit maintains consistent 50‑ohm impedance matching across the full bandwidth, achieving low insertion loss and minimal signal distortion to preserve high‑frequency signal integrity. Its optimized internal RF choke and DC‑block capacitor effectively suppress RF leakage into DC supply lines and block DC voltage from damaging RF circuits.

It is well‑suited for biasing low‑noise amplifiers, photodiodes, laser diodes, active antennas and other millimeter‑wave active components. Typical use cases include laboratory characterization, aerospace research, optical communications and mm‑wave transceiver development. Engineered for stable operation over wide temperature ranges, this compact component provides reliable DC current supply alongside high‑speed RF signal transmission, serving as a vital building block for modern ultra‑wideband millimeter‑wave test systems.