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 transfer device for microwave signals is presented. The transfer device comprises a housing defining a cavity therein, input ports and output ports defined on walls of the housing and a translatably displaceable waveguide structure positioned within the cavity and including at least two selectable functional segments. In use the translatably displaceable waveguide structure is displaced within the cavity to apply a selected function, such as a switching function and/or a combining function, to microwave signals propagating between the input ports and the output ports. Optionally, the transfer device may include multiple stacked translatably displaceable waveguide structures which can be independently displaced within the housing to apply a desired function to the microwave signals propagating between the input ports and the output ports. A method of using such transfer device is also presented.