VHF- and UHF-Band Stacked-Junction Circulators

A new type of junction circulators, in which two ordinary ferrite-loaded junctions are stacked and assembled in a common housing, is presented. The input power is divided into two junctions and the C W power rating doubled. The stacked circulator increases the freedom to choose the ferrite size, which must be optimized for a specific power level in each application because it affects closely the cost of the assembled circulator, and this design was proved to be very effective in improving the cost/power performance.