High power ferrite phase shifter based on structure of waveguide in parallel

A parallel waveguide structure for high power phase shifter is proposed. The ferrite phase shifter at present can achieve high power capacity with dual-toroids structure. The influence on the propagation, phase shift efficiency and power capacity of the dual toroids ferrite phase shifter of its parameters is simulated and analyzed in this paper. The peak power capacity can reach hundred kW level after optimization. By using parallel waveguide in parallel structure based on the dual-toroids form, it can be increased to MW level. After matching design, VSWR of the shifter is less than 1.4 from 9.25 to 9.8 GHz. The saturation differential phase shift is about 390 degrees. So this design can achieve 360 degrees electronically controlled phase shift above MW level in X band.