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Shaping of SAW transducer patterns by frequency-space apodization

Evgeniy A. Nelin


Several new structures of interdigital transducers of surface acoustic waves for shaping prescribed radiation patterns are suggested. Comparison between frequency-space and phase apodization is performed and an analogy between them is drawn. Some types of transducers with compensation of distortions of frequency responses are proposed, and experimental characteristics of the filters are presented.

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