Electrical filter of cascaded surface acoustic wave resonators

Details Electrical filter of cascaded surface acoustic wave resonators Electrical filter of cascaded surface acoustic wave resonators

1978-07-20

1980-01-15

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333196, H03H 926, H03H 932, H03H 902

Patent

active

041841310

ABSTRACT:
Surface acoustic wave resonators are used to provide band pass filters. The length of each resonator is related to the lumped constant inductor and capacitor values of the components of the low pass filter equivalent. This invention allows high frequency s.a.w. type filters to be constructed by reference to already available inductor and capacitor values from tables of low pass filter designs.

REFERENCES:
patent: 3781717 (1973-12-01), Kuenemund
patent: 3970970 (1976-07-01), Worley
patent: 4013983 (1977-03-01), Hartemann
patent: 4054851 (1977-10-01), Borner et al.

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