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Broadband chokes for Bias Tee applications

By Coilcraft


How to successfully apply a DC bias onto an RF line

The demand for increased bandwidth in data communication is continually increasing, and the integrity of RF signals has become a major design concern. In broadband bias applications, most inductors do not cover enough impedance bandwidth. By putting three or four inductors in series, bandwidth can be increased, but DC losses and filter complexity increase. Broadband chokes provide wide bandwidth in a single inductor package. This document discusses the use of broadband chokes in bias tees.


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