Abstract: An E-plane waveguide circulator for use in a high power microwave circuit is provided. The circulator has three or more waveguide ports intersecting at a junction, wherein the junction has an upper inner surface and a lower inner surface positioned in an opposing relationship to said upper inner surface. The circulator further includes at least one radial composite resonator positioned within the junction, the resonator being comprised of a composite made of a centrally disposed ferrite element and a solid dielectric layer disposed concentrically with and adjacent externally to said centrally disposed ferrite element. In use, a magnetic field source applies an external magnetic field to the radial composite resonator, the external magnetic field having a magnitude above the magnetic resonance associated with the radial composite resonator.

Abstract: A waveguide circulator for use in a high power microwave circuit is provided. The circulator has three or more waveguide ports intersecting at a junction, wherein the junction has an upper inner surface and a lower inner surface positioned in an opposing relationship to said upper inner surface. The circulator further includes at least one radial bi-composite resonator positioned within the junction, the radial bi-composite resonator being comprised of a radial component including a composite made of a centrally disposed ferrite element and a solid dielectric layer disposed concentrically with and adjacent externally to said centrally disposed ferrite element and a dielectric stack covering at least in part a surface of the radial component of the radial bi-composite resonator. In use, a magnetic field source applies an external magnetic field to the radial bi-composite resonator.

Abstract: A cross-guide coupler for use in a waveguide network is provided. The cross-guide coupler comprises a main waveguide arm having an input port and a transmitted port and a hollow metallic conduit therebetween. The cross-guide coupler also comprises a secondary arm positioned substantially transversely relative to the main arm and being fastened to the main arm, wherein the secondary arm includes a substrate integrated waveguide.

Abstract: A cross-guide coupler for use in a waveguide network is provided. The cross-guide coupler comprises a main waveguide arm having an input port and a transmitted port and a hollow metallic conduit therebetween. The cross-guide coupler also comprises a secondary arm positioned substantially transversely relative to the main arm and being fastened to the main arm, wherein the secondary arm includes a substrate integrated waveguide.

Abstract: A waveguide circulator comprising at least three waveguide arms intersecting at a junction, wherein the junction has an upper inner surface and a lower inner surface; and a ferrite element positioned within a recess formed within one of the upper inner surface and the lower inner surface of the junction, the ferrite element including a first portion that projects into the junction and a second portion that extends into the recess. A projection extends from an upper outer surface of the junction opposite the upper inner surface of the junction, the projection being positioned opposite the recess formed on the upper inner surface of the junction. In use, the ferrite element is magnetized by applying a magnetic field thereto using a magnet or electromagnet shaped for matingly engaging the projection. A method for manufacturing a waveguide circulator of the type described above is also provided.

Abstract: A waveguide circulator comprising at least three waveguide arms intersecting at a junction, wherein the junction has an upper inner surface and a lower inner surface; and a ferrite element positioned within a recess formed within one of the upper inner surface and the lower inner surface of the junction, the ferrite element including a first portion that projects into the junction and a second portion that extends into the recess. A projection extends from an upper outer surface of the junction opposite the upper inner surface of the junction, the projection being positioned opposite the recess formed on the upper inner surface of the junction. In use, the ferrite element is magnetized by applying a magnetic field thereto using a magnet or electromagnet shaped for matingly engaging the projection. A method for manufacturing a waveguide circulator of the type described above is also provided.