Abstract
The improved equivalent circuit model for a SAW interdigital transducer which we proposed in a previous paper contains an energy storage effect in addition to usual second order effects, and appropriately expresses the metallization effect. Using this model, this paper describes the relations between the impulse responses and the various second order effects for an IDT with an arbitrary metallization ratio on LiNbO3. To investigate in detail the influence of the second order effects on the performance of an IDT, figures of the characteristic responses are contrasted in both the frequency and time domains.
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