Stacked ferrite resonance isolator
AssigneeCom Dev Ltd.
InventorsJoseph Helszajn, William Thorpe
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Abstract
A fin-line resonance isolator has layers of hexagonal ferrite material that are stacked relative to one another so that the overall length of the isolator remains substantially constant as the number of layers of ferrite material increases. The isolator has substrate materials that are arranged so that the plane of circular polarization is shifted to a center of the isolator. Isolators of the present invention are capable of producing improved responses over prior art isolators while reducing insertion loss and achieving a weight and volume saving.
Claims11
A resonance isolator comprising a waveguide with dielectric substrate materials located within said waveguide to create a plane of circular polarization, with means to apply a biasing magnetic field to said waveguide, with at least two layers of ferrite material being stacked in contact with one another and mounted parallel to the plane of circular polarization and parallel to an E-plane of an electromagnetic field of the waveguide so that forward and reverse waves in said plane of circular polarization can be separated, at least two of the layers of ferrite material having dissimilar internal anistropy.
Dependencies are inferred from the claim text.