Bulk acoustic wave delay line

Details Bulk acoustic wave delay line Bulk acoustic wave delay line

1977-05-09

1978-10-10

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

With impedance matching

333 71, 333 72, H03H 930, H03H 904

Patent

active

041199340

ABSTRACT:
A bulk acoustic wave delay line adapted to increase triple-transit signal suppression by selective aperture limiting, the device including a bulk acoustic wave-supporting body having a planar end face at each end of the bulk acoustic wave propagation path, the device also including an annular absorbing structure disposed on at least one of the end faces immediately adjacent to and surrounding a transducer for absorbing the portion of the propagating bulk acoustic wave energy impinging on an end face not covered by the transducer.

REFERENCES:
patent: 2859415 (1958-11-01), Fagen
patent: 3794866 (1974-02-01), McElroy et al.
patent: 3942139 (1976-03-01), Cooper et al.

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