Theoretical considerations lead to the conclusion that a single band acoustic wave filter can be made in a manner analogous to the electric wave filter and also that in the acoustic case there should be a repetition of the band at high frequencies. The accompanying drawing shows the results of experiments with two filters whose dimensions also are indicated.
Proceedings of the Iowa Academy of Science
©1921 Iowa Academy of Science, Inc.
Stewart, G. W.
"A Single Band Acoustic Wave Filter,"
Proceedings of the Iowa Academy of Science, 28(1), 93-94.
Available at: https://scholarworks.uni.edu/pias/vol28/iss1/17