Theoretical and experimental investigation of rotation of the plane of polarization in a circular waveguide with a ferrite rod

Results are given of some computer calculations of the rotation of the plane of polarization and the phase change in a circular waveguide with a ferrite rod, and they are compared with experimental data. Two methods of computation are used. The first is based on the solution of a transcendental equation, and the second reduces the initial electrodynamic problem to the solution of a boundary value problem for a set of ordinary differential equations. The second method, applied in the present case to the design of a Faraday rotator, facilitates the design of quite complicated ferrite structures. The results are in good qualitative agreement with experiment.