Abstract
The complex Tricomi confluent hypergeometric functions Φ (a, c; x) are introduced as exact functions for propagation of normal TEom modes in circular guiding structures, containing coaxially positioned azimuthally magnetized ferrite layer of double-connected cross-section. An original form of characteristic equation of the ferrite-fiiled coaxial waveguide is derived in terms of the arguments of Tricomi functions. Using the specially tabulated values of the latter, a numerical solution of this equation is accomplished, giving the eigenvalue spectrum and nonreciprocal phase characteristics of the structure. An analysis of its phase shifting capabilities is presented for a variety of geometry and ferrite parameters. The potentialities of the gyrotropic waveguide as digital nonreciprocal phaser, operating in the TE01 mode, are discussed.
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