Accession Number : ADA017625

Title :   Diffraction Integrals for Piezoelectric Surface Waves: Construction and Discussion thereof.

Descriptive Note : Research rept. Jan-Apr 75,

Corporate Author : NAVAL UNDERSEA CENTER SAN DIEGO CALIF

Personal Author(s) : Hageman,D. H.

Report Date : OCT 1975

Pagination or Media Count : 21

Abstract : Diffraction integrals for the elastic-electric waves that propagate along the piezoelectric surface are constructed from elementary solutions of the wave equations. These integrals involve depth-dependent angular spectra which are calculable from aperture functions in the usual way. Upon setting the depth coordinate equal to zero, they go over into specialized versions that have been put forward elsewhere. The usefulness of these integrals relative to surface acoustic wave devices depends upon how well aperture functions can be approximated, and upon the adequacy of considering only the wave components at the surface. At present, there is no clear answer to either question.

Descriptors :   *Surface waves, *Acoustic waves, *Diffraction, Integrals, Wave propagation, Piezoelectric crystals, Equations of motion, Boundaries, Signal processing

Subject Categories : Acoustics
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE