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) |
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Pages (from-to) | 423-427 |
Number of pages | 5 |
Journal | IEEE Transactions on Sonics and Ultrasonics |
Volume | 32 |
Issue number | 3 |
DOIs | |
State | Published - May 1985 |