Abstract
An analysis of flared acoustic matching sections is presented which considers the energy transfer problem from a reflection coefficient point of view. Relationships between the flare properties of the section and the frequency transmission characteristics will be discussed which permit optimum design of matching sections when the transmission band is prescribed and the impedance ratio at the ends of the section is not large. Effects of distributing the reflections along the sections in various ways will be considered. The inherent limitations set by the impedance mismatch upon the frequency transmission characteristics will be discussed. An analysis for large impedance mismatch obtained by the use of an analog computer will be presented and comparisons made between coupling sections having different transmission properties. Possible extensions of the theory to other applications will be mentioned.
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