Accession Number : AD0263395

Title :   MICROWAVE APPLICATIONS OF FERRITES. PART I. THE MICROWAVE SUSCEPTIBILITY OF A SATURATED FERROMAGNETIC MEDIUM

Corporate Author : SYRACUSE UNIV N Y

Personal Author(s) : CORNACCHIO,JOSEPH V. ; GRUENBERG,HARRY

Report Date : 16 AUG 1961

Pagination or Media Count : 1

Abstract : Research was concerned with the relationship between the magnetization and a microwave field in a saturated ferromagnetic medium when the field contains one or more frequency components. This relationship is of a tensor nature, and due to cross product terms in the equation of motion of the magnetization there is a coupling between the magnetization at one frequency and the field at another frequency. Suhl suggested that this form of cross coupling could be used to produce amplification if the proper field orientation and frequency relationship existed. The susceptibility tensor is derived for the case when two of the applied fields are of the same frequency (the degenerate case), and for the modified semi-static mode configuration. A comparison of the susceptibility expressions is made with results given in the literature for special field and sample configurations. Results are tabulated for the susceptibility tensor for special cases of static field orientation and sample shape. (Author)

Descriptors :   *ELECTROMAGNETIC PROPERTIES, *FERROMAGNETIC MATERIALS, *MAGNETIC PROPERTIES, *MICROWAVE AMPLIFIERS, *MICROWAVE EQUIPMENT, AMPLIFIERS, CAVITY RESONATORS, ELECTRIC FIELDS, ELECTROMAGNETIC FIELDS, FERRITES, FREQUENCY, MAGNETIC FIELDS, MATHEMATICAL ANALYSIS, MATRICES(MATHEMATICS), PARTIAL DIFFERENTIAL EQUATIONS, TENSOR ANALYSIS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE