Accession Number:

ADP000936

Title:

Buried Magnetostatic-Forward-Volume-Wave Transducers,

Descriptive Note:

Corporate Author:

STATE UNIV OF NEW YORK AT STONY BROOK DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

1983-01-01

Pagination or Media Count:

8.0

Abstract:

This paper reports theoretical computations of the magnetostatic-forward-volume-wave MSFVW excitation characteristics of transducers that are buried within a YIG film. The frequency variation of the radiation resistance of a line-current source and a microstrip transducer is calculated over the entire magnetostatic-volume-wave MSVW spectrum. The expectation that the symmetry of transducer location relative to the YIG film must determine whether symmetric or antisymmetric MSFVWs are selectively excited is borne out in the present work. Thus, while a surface-localized microstrip transducer selectively excites the lowest or alphaO mode which is found to be an antisymmetric mode, a microstrip transducer buried half-way across the film selectively excites the lowest symmetric or alpha1 mode. The suppression of unwanted modes is far superior with the latter buried microstrip transducer than with a surface-localized microstrip transducer. While the technological problem of implementing buried transducers remains to be resolved, the present results are of relevance to the MSFVW layered structure wherein the transducer is sandwiched between two YIG films. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE