Magnetostatic Surface-Wave Transducers

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 1979 English Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Microwave Theory and Techniques, volume 27, pages 902-909 (issn: 0018-9480,

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Authors: J.C. Sethares;

doi: 10.1109/tmtt.1979.1129760

Magnetostatic Surface-Wave Transducers

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Abstract

Magnetostatic surface-wave (MSSW) transducer theory is extended and generalized. A Fourier transform relation is established between MSSW field amplitudes and transducer spatial current distribution. Expressions are developed for the radiation resistance of periodic meander and grating transducers, spatial harmonic amplitudes, and radiation resistance for uniform and nonuniform current distribution models. An expression is given for the radiation resistance of apodized transducers. The results enable one to predict transducer frequency response for a specified weighting of transducer element width, Iength and spacing.

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