Analysis of latching ferrite phasers in circular waveguide

A theoretical investigation is presented of a circular waveguide, filled completely by an azimuthally magnetized remanent ferrite under angular symmetric TE mode excitation. The analysis is extended to a more complex structure of a circular guide with a coaxially positioned ferrite rod, magnetized azimuthally to remanence, surrounded by an isotropic dielectric. The propagation problem is integrated in terms of Kummer confluent hypergeometric functions of pure imaginary argument. A tabulation of zeros of this higher transcendental function is performed, useful for numerical computations of the eigenvalue spectrum of the structures considered. The nonreciprocal phase characteristics of both phaser structures under angular symmetric TE mode excitation are presented in normalized form for the two latched states of remanent magnetization.