NASA NTRS · 19770019975
Distributed feedback acoustic surface wave oscillator
Abstract
An acoustic surface wave oscillator is constructed from a semiconductor piezoelectric acoustic surface wave amplifier by providing appropriate perturbations at the piezoelectric boundary. The perturbations cause Bragg order reflections that maintain acoustic wave oscillation under certain conditions of gain and feedback.
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Elachi, C.. 1977-05-24. Distributed feedback acoustic surface wave oscillator. https://ntrs.nasa.gov/citations/19770019975
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