A microstrip switch is provided comprising a rectangular ferrite rod having pair of ramp-shaped dielectric waveguide members at the ends thereof The ramp members are made of dielectric waveguide material having a dielectric constant which is substantially the same as the dielectric constant of the ferrite 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 Input and output sections of microstrip conductor are mounted on the surface of the substrate and the sloping surfaces of the ramp members in axial alignment with the rod and ramp members A helical coil surrounding the rod and passing through the substrate and ground plane is selectively energized to produce a unidirectional magnetic field along the longitudinal axis of the rod which causes Faraday rotation of RF wave energy passing through the rod from the input microstrip section and subsequent misalignment of the RF wave energy exiting from the rod to the output microstrip conductor section

Millimeter wave microstrip modulator/switch

A ferrite modulator/switch is disclosed for use in a dielectric waveguide ansmission line. A ferrite guide section inserted in a dielectric transmission line is longitudinally magnetized to cause a 90° rotation of a wave traveling through the guide thereby inhibiting further propagation and resulting in the scattering out of wave energy away from the dielectric line.

Dielectric waveguide ferrite modulator/switch

Microwave ferromagnetic phase shifter having controllable d. c. magnetization

Non-reciprocal multi-element tem transmission line device

OF THE DISCLOSURE The device consists of a latching, nonreciprocal ferrite phase shifter, a latching Faraday rotator, a radiating element and the required matching transformers combined into a single unit used as a phased array element. The phase shift is provided by a toroid type non-reciprocal ferrite phase shifter. The polarization rotation is provided by an axially magnetize ferrite filled waveguide. The impedance matching between the sections is achieved with ceramic transformers. This device provides full polarization control.

Phased array element with polarization control

Microwave ferrite switch

Non-reciprocal wave transmission

Magnetically controllable transmission system

Amplifying circuit for micro-waves, especially millimeter waves

Microwave pulse generator

Ultra-high frequency gyromagnetic frequency changer

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Microwave ferrite switch

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Citations

Millimeter wave microstrip modulator/switch

Dielectric waveguide ferrite modulator/switch

Microwave ferromagnetic phase shifter having controllable d. c. magnetization

Non-reciprocal multi-element tem transmission line device

Phased array element with polarization control

References

Non-reciprocal wave transmission

Magnetically controllable transmission system

Amplifying circuit for micro-waves, especially millimeter waves

Microwave pulse generator

Ultra-high frequency gyromagnetic frequency changer

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