Surface acoustic wave tapped delay line

Details Surface acoustic wave tapped delay line Surface acoustic wave tapped delay line

1977-01-05

1978-06-27

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

With impedance matching

310313, 333 70T, 333 72, H03H 930, H03H 926, H03H 932, H03H 902

Patent

active

040978257

ABSTRACT:
A surface acoustic wave device having spaced tapping output transducers disposed in the path of surface acoustic wave energy propagating along a planar substrate surface from an input transducer. The device including an ion-etched groove array disposed in the planar surface between the tapping transducers to reduce acoustic wave reflections at desired frequencies within a desired passband and suppress spurious signal-producing surface acoustic wave reflections.

REFERENCES:
patent: 3983517 (1976-09-01), Weglein
Holland et al. -- "Practical Surface Acoustic Wave Devices" in Proceedings of IEEE, vol. 62, No. 5, May 1974; pp. 582-611.

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