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 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 non-reciprocal gyromagnetic phase shift device for microwave signals is provided. The device has a section of waveguide with at least two stacked chambers in each of which ferrite-containing slabs are arranged opposite one another on top and bottom walls of the stacked chambers along a common axis, in use a magnetic field being applied to the section of waveguide along the common axis along which are positioned the ferrite-containing slabs. The phase shift device proposed may be used in different microwave circuits. For example, it may be combined with a folded magic tee and a 3 dB hybrid coupler in order to form a 4-port differential phase shift circulator.

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 filter, comprising a housing defining a passage through which electromagnetic waves can travel and a plurality of adjustable projections extending through the housing into the passage. The passage is absent any fixed protrusions. The plurality of adjustable projection s comprises a set of coupling projections, wherein each pair of adjacent coupling projections in the set of coupling projections defines there between a resonant cavity. Each coupling projection in the set of coupling projections acts as a coupling element for at least one resonant cavity and is adjustable for trimming the coupling of that at least one resonant cavity. The plurality of adjustable projections further comprises a set of tuning projections, wherein a tuning projection from the set of tuning projections is positioned between each pair of adjacent coupling projections and is adjustable for trimming a resonance frequency of an associated resonant cavity.

Abstract: A waveguide assembly comprising at least two waveguide components. The waveguide assembly comprising a first waveguide portion and a second waveguide portion each comprising an interior surface and an exterior surface. The interior surface of the first waveguide portion defining a first portion of a first microwave component and a first portion of a second microwave component. The interior surface of the second waveguide portion defining a second portion of the first microwave component and a second portion of the second microwave component. The first waveguide portion and the second waveguide portion being adapted for being coupled together to form the waveguide assembly such that, when coupled together, the waveguide assembly comprises at least the first microwave component and the second microwave component.

Abstract: A waveguide circulator comprising at least three waveguide arms intersecting at a junction, at least one ferrite element positioned within the junction, an impedance transformer and a recessed transformer. At least a portion of each of the at least three waveguide arms and the junction define a first wall and a second wall that are positioned in an opposing relationship. The impedance transformer is positioned in proximity to the at least one ferrite element and projects from the first wall. The recessed transformer is positioned in proximity to the impedance transformer and is recessed within the first wall.