Accession Number : ADD007060

Title :   Acoustic-Wave Convolvers Utilizing Diffused Waveguides and Beam Compression Techniques.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Weller,Joseph F ; Crowley,James D ; Giallorenzi,Thomas G

Report Date : 01 Jan 1980

Pagination or Media Count : 7

Abstract : Two input transducers launch oppositely-propagating acoustic surface waves on a piezoelectric substrate. The waves are compressed to a smaller beamwidth and then laterally confined in a diffused channel waveguide where non-linear interaction occurs at increased energy densities due to the beam compression. In one embodiment the beam compression is accomplished in multistrip couplers. In another embodiment, diffused horn-shaped channels are provided for compressing the beamwidth. Both piezoelectric and semiconductor convolvers are disclosed. (Author)

Descriptors :   *Patents, *Convolution, Surface waves, Acoustic waves

Subject Categories : Line, Surface and Bulk Acoustic Wave Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE