Elastic surface wave filter

Details Elastic surface wave filter Elastic surface wave filter

1976-03-12

1977-09-06

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

310313, 310345, 333 30R, H03H 904, H03H 910, H03H 926, H01L 4104

Patent

active

040471292

ABSTRACT:
An elastic surface wave filter having a substrate of ceramic material and input and output transducer electrodes of interleaved-comb-type rigidly mounted on one surface of the substrate. A top covering is mounted on the electrode-mounted surface of the substrate. This substrate concurrently serves as a medium through which, when the filter is energized, an elastic surface wave is propagated from the input transducer electrode towards the output transducer electrode and also as a closure for closing the opening of the top covering.

REFERENCES:
patent: 3512254 (1970-05-01), Jenkins et al.
patent: 3689784 (1972-09-01), De Klerk
patent: 3694674 (1972-09-01), Inoue
patent: 3872331 (1975-03-01), Falco
patent: 3885173 (1975-05-01), Lee

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