Title :
Accurate determination of magnetic loss of ferrite material, far from gyroresonance, ΔHeff, in a wide frequency range
Author :
Monediere, Th. ; Latrach, M. ; Jecko, F.
Author_Institution :
IRCOM-Equipe Electromagnetisme, Faculte des Sci.-URA, Limoges, France
fDate :
3/1/1994 12:00:00 AM
Abstract :
The purpose of the presented work is an accurate determination of magnetic loss far from gyromagnetic resonance (ΔHeff), in a wide frequency range using resonant cavities completely or partially filled with magnetic material. The rigorous analytic field expressions are given for any mode of each device. The importance of the relative metallic loss is pointed out and the accuracy of the determination of the conductivity of metallic walls is discussed. The accuracy of the ΔHeff determination is studied for each structure
Keywords :
cavity resonators; ferrites; loss measurement; magnetic leakage; microwave measurement; numerical analysis; conductivity; ferrite material; metallic walls; microwave magnetic loss; relative metallic loss; resonant cavities; rigorous analytic field expressions; Ferrites; Magnetic anisotropy; Magnetic fields; Magnetic losses; Magnetic materials; Magnetic resonance; Maxwell equations; Perpendicular magnetic anisotropy; Resonant frequency; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
