Acoustic surgave wave resonator devices

Details Acoustic surgave wave resonator devices Acoustic surgave wave resonator devices

1978-01-26

1979-12-11

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333195, 333196, H03H 904, H03H 926, H03H 932, H01L 4110

Patent

active

041785711

ABSTRACT:
The input and output transducers associated with an acoustic surface wave resonator, or with respective acoustically coupled cavities, are split into staggered pairs. Furthermore they are located with respect to the standing wave pattern(s) and connected to input and output terminals in such manner as to suppress the response of the output transducer to travelling waves received directly from the input transducer and reduce the stopband level of the device associated with that response.

REFERENCES:
patent: 3886504 (1975-05-01), Hartmann et al.
patent: 4065735 (1977-12-01), Palfreeman et al.
patent: 4081769 (1978-03-01), Shreve

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