Coaxial circulator with coplanar y-shaped conductor and ground patterns

Abstract

A coaxial circulator having ferrite members to which a static magnetic field is applied at a junction of a Y-shaped strip conductor, the coaxial conductor including a dielectric substrate, an inner pattern of the Y-shaped strip conductor provided on a center of an upper surface of the dielectric substrate, and ground patterns provided on the upper surface and a lower surface of the dielectric substrate along a periphery of the conductive inner pattern and electrically connected to each other via a plurality of through-holes in the dielectric substrate, the substrate being sandwiched by an upper block and a lower block, the ferrite members being provided adjacent to both the upper side and a lower side of the substrate so as to ground the ground patterns to the upper and lower block surfaces.