Accession Number : ADD000060

Title :   Feedback-Type Acoustic Surface Wave Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Whitehouse,Harper John

Report Date : 16 Oct 1973

Pagination or Media Count : 10

Abstract : The patent describes a distributed-transducer surface wave device, comprising a crystal substrate, capable of propagating a surface wave, and a pair of transducers disposed in an aligned relationship upon the crystal substrate, including an input and output transducer, each of which includes at least one pair of interdigitated electrodes disposed perpendicularly to the direction of surface wave propagation caused by the application of an input signal to the input transducer. The distance between each pair of adjacent electrodes for each of the transducers is uniform. A feedback loop is connected from the output of the output transducer to the input of the input transducer.

Descriptors :   *Acoustic equipment, *Patents, Surface waves, Acoustic waves, Transducers, Delay lines, Feedback, Circuits, Signal processing

Subject Categories : Line, Surface and Bulk Acoustic Wave Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE