Abstract
A method is presented for calculating the optimum cut of piezoelectric material with small bulk acoustic wave (BAW) generation by interdigital transducers (IDTs). The theoretical results for Y-rotated cut X-propagation and Y-rotated cut X-90 degrees propagation LiNbO/sub 3/ are given. A new cut of LiNbO/sub 3/ has been found which has smaller BAW generation than Y-128 degrees X LiNbO/sub 3/. The experimental results agree with the theoretical prediction.
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