The design of reciprocal ferrite phase shifters

The design of a reciprocal ferrite phase shifter in a rectangular waveguide, using perturbation theory with a quasi-stationary approximation for the field perturbation of the system is considered. The theoretical results are compared with experimental data and with a design carried out without using the quasi-stationary approximation [5], The simplicity of the proposed method and the good agreement between the theoretical and experimental results enable it to be used in solving engineering problems.