Accession Number:

AD0257810

Title:

HIGH POWER MICROWAVE FERRITES AND DEVICES

Descriptive Note:

Quarterly progress rept. no. 3, 1 Jan-31 Mar 61,

Corporate Author:

RAYTHEON CO WALTHAM MA

Personal Author(s):

Report Date:

1961-03-31

Pagination or Media Count:

1.0

Abstract:

This report includes SPIN-WAVE SPECTROSCOPY, by Ernst Schlomann. 13 Mar 61. 19p. incl. illus. Technical memo. no. T-279 Contracts DA 36-039-sc-85372 and AF 196047297A theory was developed for the behavior of magnetic materials under parallel pumping at power levels beyond the critical power level. Microwave loss in the region from zero magnetic field to resonance was studied in a number of ferrites and garnets. The frequency-dependence of nonlinear phenomena in the below-resonance region was investigated. It was shown theoretically that spin waves of short wavelength can be generated by means of an essentially uniform rf magnetic field if the internal dc magnetic field is nonuniform in a suitable way. A new method of generating spin waves is proposed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE