Frequency-space apodization of surface acoustic wave transducers
DOI:
https://doi.org/10.3103/S0735272704050036Abstract
The paper considers the interrelation between the frequency-time and frequency-space characteristics of interdigital transducers of surface acoustic waves. A new method is suggested for setting-up the selective properties of the transducers by means of filtration of the frequency-space spectrum, particularly by frequency-space apodization. Several models of such apodization based on the wave spatial spectrum, and with regard for diffraction in the parabolically anisotropic medium, are considered. The characteristics of transducers are presented.References
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