Bulk acoustic wave signal processing devices

Details Bulk acoustic wave signal processing devices Bulk acoustic wave signal processing devices

1984-10-29

1986-09-02

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333141, 333145, 333147, 333188, 310335, 350 36, H03H 954, H03H 915, H03H 924

Patent

active

046098909

ABSTRACT:
An acoustic wave signal processing device which in a preferred embodiment utilizes at least one holographic grating formed within a portion of the interior of a substrate which is capable of supporting the propagation of bulk acoustic wave signals therein. The grating provides spatially varying acoustic impedances within the substrate and interacts with bulk acoustic wave signals propagated therethrough so as to produce output acoustic wave signals. The grating and transducers for producing and receiving the input and output bulk acoustic wave signals, respectively, can be arranged to provide a variety of signal processing operations which may be desired, such as providing resonating operations and filter operations, for example.

REFERENCES:
patent: 3840826 (1974-10-01), Toda et al.
patent: 4117424 (1978-09-01), Coldren et al.
patent: 4169236 (1979-09-01), Epstein
Alig-"Acoustic Diffraction and the Electrostrictive Transducer", Journal of Applied Physics, vol. 46, No. 9, Sep. 1975; pp. 3731-3737.

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