| abstract |
The present invention includes devices and methods for manufacturing an RF circulator / insulator device, the RF circulator / insulator device comprising: a substrate comprising one or more conductive coils, wherein the one or more conductive coils are on the substrate; Or formed around the substrate; An opening of a substrate comprising an iron core, the iron core being formed in the substrate after formation of one or more conductive coils, the iron core disposed and shaped to create a circulator / insulator in the substrate; And one or more connectors, vias, resistors, capacitors, or other integrated circuits of the device connected to the conductive coils of the circulator / insulator. |