Millimeter Wave Microstrip Nonreciprocal Phase Shifter.
Patent application filed 5 Dec 88,
DEPARTMENT OF THE ARMY WASHINGTON DC
Pagination or Media Count:
A microstrip nonreciprocal latching phase shifter is provided comprising a rectangular ferrite rod having a pair of ramp-shaped dielectric waveguide members at the ends thereof. The ramp members have a dielectric constant which is substantially the same as the dielectric constant of the ferrite rod. The rod and ramp members are mounted on one surface of a microstrip dielectric substrate having a dielectric constant substantially less than the dielectric constant of the ramp members and a ground plane on the other surface thereof. A thin dielectric plate is mounted on top of the ferrite rod and extends the length of the rod. A microstrip conductor is mounted on the surface of the substrate, the sloping top surfaces of the ramp members and the dielectric plate in axial alignment with the rod and ramp members and extends between the ends of the substrate. The rod has a longitudinal-extending passageway therein having a rectangular transverse cross-section. Patent applications. RH