Title :
Considerations on the frequency dependence of waveguide modes in premagnetized ferrites near resonance
Author :
Kother, D. ; Beyer, A.
Author_Institution :
Dept. of Electr. Eng., Duisburg Univ., West Germany
Abstract :
The characteristics of the waveguide modes in premagnetized ferrites are described, taking into account the dielectric and magnetic losses. It is shown that the field distributions inside an anisotropic medium-filled rectangular waveguide can be calculated on the basis of a rigorous field theory. The authors then discuss how the field theory can be used for the design of high-quality isolators and phase shifters.<>
Keywords :
ferrite devices; microwave isolators; phase shifters; rectangular waveguides; waveguide theory; anisotropic medium-filled rectangular waveguide; characteristics; dielectric losses; field distributions; frequency dependence; high-quality isolators; magnetic losses; phase shifters; premagnetized ferrites near resonance; rigorous field theory; waveguide modes; Anisotropic magnetoresistance; Dielectric losses; Ferrites; Frequency dependence; Isolators; Magnetic anisotropy; Magnetic losses; Perpendicular magnetic anisotropy; Rectangular waveguides; Waveguide theory;
Conference_Titel :
Microwave Symposium Digest, 1988., IEEE MTT-S International
Conference_Location :
New York, NY, USA
DOI :
10.1109/MWSYM.1988.22143
