Patent ID: 9711835
Date: 2017-07-18
CPC Classifications: C01G,H01P

Claim:
1. A radio-frequency circulator comprising: a grounding plane having a first side that defines a recess and a second side opposite the first side; a magnet disposed within the recess on the first side of the grounding plane, the recess sized to receive and hold the magnet; a ferrite-based disk disposed adjacent the second side of the grounding plane, the ferrite-based disk having a first surface that faces toward the second side of the grounding plane and an opposite second surface that faces away from the second side of the grounding plane, the ferrite-based disk including an integral metalized layer formed on the first surface to define a grounding surface such that the metalized layer is in direct contact with the second side of the grounding plane and is interposed between the second side of the grounding plane and the first side of the ferrite-based disk; and a return path including a return path disk adjacent an opposite side of the magnet from the grounding plane, the return path disk having a diameter larger than the diameter of the magnet, and the return path including a hollow cylinder where the return path disk and cylinder encloses the grounding plane, the magnet, and the ferrite-based disk, the hollow cylinder having an inner diameter that generally matches the diameter of the return path disk.