Surface acoustic wave resonators with integrated internal coupler reflectors

Patent Number: 4,237,433
Issued: 12/2/1980
Official Filing: View the Complete Patent
Abstract: A multiple track acoustic surface wave filter processes input signals successively flowing in coupled resonant acoustic tracks, each track being realized between pairs of surface wave reflectors in the surface of a planar piezoelectric substrate. The acoustic surface wave reflection and coupling devices are at least partially integrated so as to reduce the length of the structure.
Filed: 3/13/1979
Application Number: 6/20,115
Government Interests: STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.