Iterative method for analysis of the differential phase shift in an azimuthally magnetized circular ferrite-dielectric waveguide

Abstract

Applying an iterative scheme, the differential phase shift provided by the circular waveguide with a coaxial dielectric cylinder and an azimuthally magnetized ferrite toroid, is figured in normalized form for normal TE01 mode. The method is based on a repeated numerical solution of the structure's characteristic equation, derived by the complex Tricomi and the real Bessel function, followed by a calculation of the normalized in a suitable way guide radius and phase constant of the wave. The phase shift is found as a difference between the computed numerical equivalents of constants in question for negative and positive magnetization at selected values of the dielectric cylinder to guide radius ratio and the off-diagonal ferrite tensor element. The relative permittivity of the dielectric is assumed larger than that of the ferrite. The results are presented graphically and debated.