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US 6,476,704 B2Granted
MMIC airbridge balun transformer
AssigneeRaytheon Company
InventorMiles E. Goff
Life of this patent
Estimating the term…
Abstract
A balun transformer and inductor are proposed having geometries that provide several windings of conductors in small areas. In one embodiment, the windings of the balun transformer and inductor have octagonal shapes with a lower and upper layer of wound conductors. The upper layer lies on supporting posts that stand on pedestals. The lower layer of conductors shadow the upper layer while curving to avoid the pedestals.
Claims44
A balun transformer, comprising:
- a primary conductor, wherein said primary conductor comprises at least one primary winding having at least one planar portion and at least one primary crossover portion, and wherein said at least one planar portion of said at least one primary winding lies within a first plane;
- a secondary conductor, wherein said secondary conductor comprises at least one secondary winding having at least one planar portion and at least one secondary crossover portion, and wherein said at least one planar portion of said at least one secondary winding lies within a second plane located above said first plane, and further wherein said at least one planar portion of said at least one secondary winding is concentrical;
- at least one supporting post to support said at least one planar portion of said at least one secondary winding;
- and
- a dielectric comprising air disposed between said first plane and said second plane.
2 more elements
An inductor, comprising:
- a primary conductor comprising at least one planar portion and at least one primary crossover portion, wherein said at least one planar portion of said primary conductor lies within a first plane;
- a secondary conductor electrically connected to said primary conductor wherein said secondary conductor comprises at least one planar portion and at least one secondary crossover portion, and wherein said at least one planar portion of said secondary conductor lies within a second plane located above said first plane, and further wherein said at least one planar portion of said secondary conductor is concentrical;
- a dielectric comprising air disposed between said first plane and said second plane;
- and
- at least one supporting post to support said at least one planar portion of said secondary conductor, wherein said at least one planar portion of said primary conductor curves around said at least one supporting post to avoid said at least one supporting post, and wherein said primary conductor and said secondary conductor comprise more than one winding of a conductor.
2 more elements
A method for making balun transformers, comprising:
- forming a primary conductor comprising at least one primary winding having at least one planar portion and at least one primary crossover portion;
- locating said at least one planar portion of said at least one primary winding within a first plane;
- forming a secondary conductor comprising at least one secondary winding having at least one concentrical planar portion and at least one secondary crossover portion;
- locating at least one supporting post to support said at least one planar portion of said at least one secondary winding;
- locating said at least one planar portion of said at least one secondary winding within a second plane located above said first plane;
- and
- providing a dielectric comprising air to reside between said first plane and said second plane.
4 more elements
A method for making an inductor, comprising:
- forming a primary conductor comprising at least one planar portion and at least one primary crossover portion;
- locating said at least one planar portion of said primary conductor within a first plane;
- forming a secondary conductor comprises at least one concentrical planar portion and at least one secondary crossover portion;
- providing at least one supporting post to support said at least one planar portion of said secondary conductor, wherein said at least one planar portion of said primary conductor is formed to curve around said at least one supporting post to avoid said at least one supporting post;
- locating said at least one planar portion of said secondary conductor within a second plane located above said first plane;
- electrically connecting said primary conductor to said secondary conductor, wherein said primary conductor and said secondary conductor comprise more than one winding of a conductor;
- and
- providing a dielectric comprising air to reside between said first plane and said second plane.
5 more elements
Dependencies are inferred from the claim text.