Surface wave filter with reduced substrate size

Details Surface wave filter with reduced substrate size Surface wave filter with reduced substrate size

1982-04-22

1983-12-20

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333153, 333196, H03H 925, H03H 964, H03H 972

Patent

active

044220570

ABSTRACT:
An acoustic surface wave multiplexing filter is described having two signal processing paths, one for each of two possible input signals. Each processing path includes an input transducer, a multistrip coupler, and an output transducer. To save substrate area, the multistrip couplers are formed on the substrate in a position of side-by-side overlap with each other.

REFERENCES:
patent: 3898592 (1975-08-01), Solie
patent: 4155056 (1979-05-01), Cross et al.
patent: 4379274 (1983-04-01), Hansen

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