Surface acoustic wave convolver with dielectric film of high non

Details Surface acoustic wave convolver with dielectric film of high non Surface acoustic wave convolver with dielectric film of high non

1988-03-11

1989-11-21

Kyle, Deborah L.

Communications, electrical: acoustic wave systems and devices

Signal transducers

310313R, 310313B, 333150, 333151, 333154, 333196, H04R 2300, H01L 4108

Patent

active

048827150

ABSTRACT:
In a surface acoustic wave elastic convolver capable of showing sufficiently high convolution efficiency with a simple structure, the convolver comprises a piezo-electric substrate, plural input transducers formed on the substrate for respectively generating surface acoustic waves corresponding to input signals, an output transducer for obtaining a convolution signal of the input signals, from a surface acoustic wave generated by non-linear interaction, of the surface acoustic waves generated by those input transducers, and a dielectric film of a non-linear effect larger than that of the substrate, formed on the substrate in at least an area where the output transducer is formed.

REFERENCES:
patent: 3962673 (1976-06-01), Desbois et al.
patent: 4041536 (1977-08-01), Melcher et al.
patent: 4224683 (1980-09-01), Adkins
patent: 4379998 (1983-04-01), Shockley
patent: 4556949 (1985-12-01), Solie
patent: 4745378 (1988-05-01), Niitsuma et al.
patent: 4757226 (1988-07-01), Mitsutsuka et al.

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