CIRCULATOR ON LUMPED ELEMENTS WITH DOUBLE CHANGE OF CIRCULATION DIRECTION Russian patent published in 2015 - IPC H01P1/38 

FIELD: radio engineering, communication.

SUBSTANCE: Y-coupling, situated between two coaxially arranged and magnetised ferrite elements in the form of a system of six flat conductors which are intertwined and insulated from each other, the like ends of which are connected to first leads of matching capacitors and the other ends are connected to each other and to second leads of matching capacitors, is connected to another Y-coupling, which is arranged coaxial to the first, with matching capacitors in each arm, said coupling being situated between two coaxially arranged and magnetised ferrite elements, in the form of a system of fix flat conductors which are intertwined and insulated from each other, the like ends of which are connected to first leads of matching capacitors and the other ends are connected to each other and to the ends of the first Y-coupling, connected to each other or to ends of the first Y-coupling which are connected to first leads of matching capacitors, and instead of a parallel circuit, a serial or parallel connection of series and parallel circuits is included between the common point of the flat conductors of the first Y-coupling.

EFFECT: broader capabilities of the circulator owing to operation thereof in three wide frequency bands.

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