Microwave Characterization of Partially Magnetized Ferrites

In order to assist the microwave engineer in predicting the performance of partially magnetized devices, we have characterized the microwave permeability of partially magnetized materials. The real part of the tensor permeability elements, /spl mu/, /spl kappa/, and /spl mu//sub z/, depends primaril...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1974-06, Vol.22 (6), p.641-645
Main Authors: Green, J.J., Sandy, F.
Format: Article
Language:English
Subjects:
Demagnetization
Ferrites
Frequency
Magnetic devices
Magnetic field measurement
Magnetic materials
Microwave devices
Permeability measurement
Saturation magnetization
Tensile stress
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In order to assist the microwave engineer in predicting the performance of partially magnetized devices, we have characterized the microwave permeability of partially magnetized materials. The real part of the tensor permeability elements, /spl mu/, /spl kappa/, and /spl mu//sub z/, depends primarily on the parameters /spl gamma/4/spl pi/M//spl omega/ and /spl gamma/4/spl pi/M/sub s/ / /spl omega/. Empirical formulas have been developed which show the dependence. At frequencies sufficiently below /spl omega/ = /spl pi/4/spl pi/M/sub s/, the loss can be characterized by the value of /spl mu/'' at 4/spl pi/M = 0./spl mu/, /spl kappa/, and /spl mu//sub z/ depend weakly on composition, whereas /spl mu/'' (4/spl pi/M = 0) does depend upon the chemical composition.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.1974.1128306