Spectral theory of unidirectional transducers

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Authors

  • E. DANICKI Institute of Fundamental Technological Research Polish Academy of Sciences

Abstract

A spectral theory of single-phase unidirectional transducers of the surface acoustic waves is presented. It helps to evaluate the stop-band width where the directionality takes place, and allows one to optimize the transducer structure in order to obtain its symmetric frequency response, with maximum directionality at the stop-band center.

Keywords:

surface acoustic waves, interdigital transducers