DocumentCode :
533459
Title :
Comparative study of the differential phase shift in some circular waveguides, containing azimuthally magnetized ferrite
Author :
Georgiev, Georgi Nikolov ; Grosse, Mariana Nikolova Georgieva
Author_Institution :
Fac. of Math. & Inf., Univ. of Veliko Tirnovo St. St. Cyril & Methodius, Veliko Tirnovo, Bulgaria
fYear :
2010
fDate :
27-30 Sept. 2010
Firstpage :
114
Lastpage :
122
Abstract :
The differential phase shift, provided by two circular waveguides: the first - entirely and the second - partially filled with remanent ferrite of azimuthal magnetization, is calculated in normalized form for the normal TE01 mode. In the second transmission line the anisotropic load is of the shape of a toroid which takes up its outer area only, while its interior is occupied by dielectric. Furthermore, the relative permittivities of both strata are assumed equal. The results are obtained by means of an iterative approach, based on a repeated numerical solution of the relevant characteristic equations for varying parameters, and are presented graphically. The comparative analysis performed shows that for each of the structures considered the domain in which the phase shift is produced, is finite. Besides, its size, as well as the value and the sign of phase shift, depend on the degree of filling of the configuration by dielectric (if available) and on the magnitude of the off-diagonal ferrite permeability tensor element.
Keywords :
circular waveguides; dielectric-loaded waveguides; ferrite phase shifters; ferrites; iterative methods; magnetic permeability; microwave phase shifters; permittivity; remanence; anisotropic load; azimuthal magnetization; azimuthally magnetized ferrite; circular waveguides; dielectrics; differential phase shift; iterative approach; off-diagonal ferrite permeability tensor element; relative permittivity; remanent ferrite; Dielectrics; Ferrites; Magnetic domains; Magnetization; Permittivity; Perpendicular magnetic anisotropy; Toroidal magnetic fields;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2010 Xvth International Seminar/Workshop on
Conference_Location :
Tbilisi
Print_ISBN :
978-1-4244-7790-6
Electronic_ISBN :
978-966-02-5654-5
Type :
conf
Filename :
5623914
Link To Document :
بازگشت