Broadband junction ferrite circulator
AssigneeMillimeter Wave Systems, LLC
InventorsChristopher T. Koh, James R. Strickland, William R. Shedd, Kenneth R. Wood, Martin Skowyra
Life of this patent
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Abstract
A rectangular waveguide circulator consists of multiple sections that meet at a common junction where a tapered ferrite portion is disposed. A ferrite portion is disposed within a hollow space adjacent the common junction. The ferrite portion has a shape that includes an upper portion, a middle portion, and a lower portion, such that a cross sectional area of the upper portion is greater than a cross-sectional area of the middle portion, and such that a cross sectional area of the lower portion is greater than the cross-sectional area of the middle portion.
Claims9
A circulator device comprising:
- three sections of rectangular conductively bounded hollow waveguide housing, the three sections connected to meet in a common junction;
- and
- a switching ferrite portion, disposed within a hollow space adjacent the common junction, the switching ferrite portion having a shape formed within the waveguide housing that includes an upper portion, a middle portion, and a lower portion, such that a cross sectional area of the upper portion is greater than a cross-sectional area of the middle portion, and such that a cross sectional area of the lower portion is greater than the cross-sectional area of the middle portion.
A circulator device comprising:
- three sections of rectangular conductively bounded hollow waveguide, the three sections connected to meet in a common junction;
- a ferrite portion, disposed within a hollow space adjacent the common junction, the ferrite portion having a shape that includes an upper portion, a middle portion, and a lower portion, such that a cross sectional area of the upper portion is greater than a cross-sectional area of the middle portion, and such that a cross sectional area of the lower portion is greater than the cross-sectional area of the middle portion;
- and
- wherein the upper portion has a different cross sectional shape than a cross sectional shape of the lower portion.
A circulator device comprising:
- three sections of rectangular conductively bounded hollow waveguide, the three sections connected to meet in a common junction;
- a ferrite portion, disposed within a hollow space adjacent the common junction, the ferrite portion having a shape that includes an upper portion, a middle portion, and a lower portion, such that a cross sectional area of the upper portion is greater than a cross-sectional area of the middle portion, and such that a cross sectional area of the lower portion is greater than the cross-sectional area of the middle portion;
- and
- wherein the shape of the ferrite portion has a continuous taper from the upper portion through the middle portion to the lower portion.
Dependencies are inferred from the claim text.