Bifurcated electroacoustic delay line with diagonal coupling

Details Bifurcated electroacoustic delay line with diagonal coupling Bifurcated electroacoustic delay line with diagonal coupling

1983-04-22

1984-12-11

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic bulk wave propagation means

333143, 333149, H03H 930, H03H 940, H03H 9125

Patent

active

044881282

ABSTRACT:
A bifurcated electroacoustic delay line includes first and second branches of a transmission medium, the branches being joined along respective common sides. Bonded to the common sides of the branches are respective first and second input and first and second output transducers, the transducers arranged so that the input transducers are positioned laterally adjacent each other and the output transducers are analogously positioned. An inductance diagonally couples the first output transducer to the second input transducer permits frequency tuning of the delay line.
Diagonal coupling via an inductance operates to mitigate the effects of spurious responses derived from the divergence of electroacoustic waves between laterally adjacent tranducers and, collaterally, permits tuning of the delay line composite frequency response.

REFERENCES:
patent: 2781494 (1957-02-01), Geoghegan
patent: 3025479 (1962-03-01), Wolfskill
patent: 3227970 (1966-01-01), Andersen
patent: 3475704 (1969-10-01), Vanderburgt

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