Patent ID: 9559400
Date: 2017-01-31
CPC Classifications: H01P

Claim:
1. A waveguide circulator comprising: at least N waveguide arms including a first-waveguide arm and (N−1) other-waveguide arms, where N is a positive integer, and wherein the first-waveguide has at least an end-portion having a first width and an inner-portion having a second width, the second width being larger than the first width; a ferrite element having N segments protruding into the N respective waveguide arms, the N segments including: at most (N−1) quarter-wave dielectric transformers attached to respective ends of the at most (N−1) other segments of the ferrite element; at least one integrated-transition element attached to a respective at least one end of at least the first segment and extending into the respective at least one first-waveguide arm, the at least one integrated-transition element including: wherein the integrated-transition element simultaneously functions as a transformer and a microstrip probe to optimize impedance matching in the first-waveguide arm.