Surface acoustic wave delay line

Details Surface acoustic wave delay line Surface acoustic wave delay line

1975-04-28

1976-04-20

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

With impedance matching

29 2535, 310 98, 333 72, H03H 926, H03H 930, H03H 932, H01L 4122

Patent

active

039522695

ABSTRACT:
A surface acoustic wave device wherein spaced input and output transducers are disposed on a piezoelectric substrate and wherein a time delay or insertion phase compensation structure is disposed between the transducers in the path of the propagating surface acoustic wave energy, the structure including a group of transversely disposed conductive electrodes initially conductively interconnected outside the propagating energy path whereby a desired time delay or insertion phase may be obtained by electrically insulating a number of the electrodes from the group of initially conductively interconnected electrodes.

REFERENCES:
patent: 3845420 (1974-10-01), Holland et al.
patent: 3882429 (1975-05-01), Martin
Fink -"Television Engineering Handbook," McGraw-Hill New York, 1957; p. 15.

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