Abstract
An epoxy−bonded LiNbO3−YIG−LiNbO3 composite structure has been constructed and operated as a magnetoelastic Rayleigh wave convolver with 50−MHz input signals. The acoustic signals were propagated on a (110) YIG surface and the convolution characteristics were studied as a function of the magnitude and direction of the applied magnetic field. Nonuniform demagnetizing fields limited convolution pulses to less than 1.5 μsec duration. Relatively efficient operation was observed corresponding to an internal efficiency Fint of −53 dBm.
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