Surface wave circuit device

Details Surface wave circuit device Surface wave circuit device

1981-03-20

1982-12-21

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313C, 333154, 333196, H03H 964, H03H 925

Patent

active

043652204

ABSTRACT:
Stripes of a transducer or a reflector in a surface acoustic wave device are arranged such that the distribution of effective lengths of interdigital electrodes follows a function of impulse response in the direction of propagation of an acoustic wave and a total number of stripes in the direction of propagation is equal for each section in the direction normal to the direction of propagation, in order to attain a desired frequency response without sacrificing a transfer efficiency.

REFERENCES:
patent: 3768032 (1973-10-01), Mitchell
patent: 4160963 (1979-07-01), Hays, Jr.

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