SAW Phase Modulator Using Magnetostrictive Thin Films

William P. Robbins; Alister Young

doi:10.1109/T-SU.1985.31611

SAW Phase Modulator Using Magnetostrictive Thin Films

William P. Robbins, Alister Young

Electrical and Computer Engineering

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Abstract

The fabrication and testing of a SAW phase modulator based on the ΔE effect in magnetostrictive thin films is described. An Fe-Si-B film on lithium niobate was used and peak phase deviations of about 50 at modulating frequencies of 100 KHz were observed at a center frequency of 115 MHz. A simple theory for the phase modulator has been developed which is in reasonable agreement with experiment. The need for a dc bias field, in addition to the ac modulating field, for linear phase modulation is discussed.

Original language	English (US)
Pages (from-to)	423-427
Number of pages	5
Journal	IEEE Transactions on Sonics and Ultrasonics
Volume	32
Issue number	3
DOIs	https://doi.org/10.1109/T-SU.1985.31611
State	Published - May 1985

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AU - Young, Alister

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AB - The fabrication and testing of a SAW phase modulator based on the ΔE effect in magnetostrictive thin films is described. An Fe-Si-B film on lithium niobate was used and peak phase deviations of about 50 at modulating frequencies of 100 KHz were observed at a center frequency of 115 MHz. A simple theory for the phase modulator has been developed which is in reasonable agreement with experiment. The need for a dc bias field, in addition to the ac modulating field, for linear phase modulation is discussed.

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SAW Phase Modulator Using Magnetostrictive Thin Films

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