Transmission line balun for broadband combiners, splitters and transformers

摘要

A transmission line balun comprising a tubular ferrite having a longitudinal passageway concentrically positioned over a conductive sleeve having a longitudinal passageway. The end of a coax feeder is positioned in the longitudinal passageway of the sleeve and the sleeve is grounded at its proximal end to the shield of the coax cable. The sleeve buffers the effects of the parasitic line caused by using ferrite in a balun.