Elastic surface wave filter

Details Elastic surface wave filter Elastic surface wave filter

1976-03-12

1977-07-05

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

310 89, 333 30R, H03H 910, H03H 926, H03H 906

Patent

active

040343189

ABSTRACT:
An elastic surface wave filter having a substrate of piezoelectric material and input and output transducer electrodes of interleaved-comb-type rigidly mounted on one surface of the substrate. The substrate is steadily supported in position within a casing by means of elastic support means which are made of synthetic or natural rubber material and which support means not only act as supporting instruments for the substrate, but also as vibration absorbing instruments for substantially suppressing unnecessary wave propagation through the substrate.

REFERENCES:
patent: 3694674 (1972-09-01), Inoue
patent: 3872331 (1975-03-01), Falco
patent: 3885173 (1975-05-01), Lee

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