Patent ID: 9520633
Filing Date: 2016-12-13
CPC Classification: H01P,Y10T

Claim Text:
1. A waveguide circulator comprising: a) at least three waveguide arms intersecting at a junction, wherein the junction has an upper inner surface and a lower inner surface; b) a ferrite element positioned within a recess formed within one of the upper inner surface and the lower inner surface of the junction, the ferrite element including a first portion that projects into the junction and a second portion that extends into the recess; c) a projection extending from one of the upper outer surface and the lower outer surface of the junction, the projection being positioned opposite the recess formed within the one of the upper inner surface and the lower inner surface of the junction, wherein the projection has a generally circular shape; and d) a ring magnet engaged with the projection for magnetizing the ferrite element positioned within the recess, wherein an inner periphery of the ring magnet is shaped to engage the projection.