SUPERHIGH-FREQUENCY PHASE SHIFTER Russian patent published in 2003 - IPC

FIELD: microwave radio engineering. SUBSTANCE: phase shifter designed to control phase shift of electromagnetic wave in waveguide transmission lines and may be found useful for developing electric beam scanning systems has ferrite rod mounted along rectangular waveguide section axis, magnetic system for controlling microwave field rotation, and two newly introduced dielectric plates whose dielectric constant ranges between 1.5 and 1.9 of that of ferrite; these plates are disposed on ferrite rod surface in parallel with narrow waveguide walls, plate thickness being chosen from expression 0,4≤2t_k/t_f<0,7, where t_k is dielectric plate thickness; t_f is ferrite rod thickness. In addition two more dielectric plates are introduced whose dielectric constant ranges between 1.0 and 1.6 of that of ferrite rod; these plates are disposed on ferrite rod surface in parallel with waveguide wide walls, plate thickness being chosen from expression 0,27≤2h_k/h_f≤0,5, where h_k is dielectric plate thickness; h_f is ferrite rod height. At the same time n dielectric plates of dielectric constant ranging between 0.5 and 1.0 of that of ferrite are disposed on one or two wide waveguide walls. EFFECT: enlarged operating frequency band, reduced loss, improved phase shift stabilization, reduced size and mass. 3 cl, 4 dwg