Acoustic wave interface filters having two section optimally cut Lithium Tantalate crystalline substrate material with assembled interface zone propagating acoustic waves/forming electroacoustic transducers.

摘要

The acoustic wave interface filter has a first crystalline substrate (S1) and a second substrate (S2) in Lithium Tantalate material. The two substrates are assembled with an interface zone (I) propagating acoustic waves forming electroacoustic transducers. The two substrate sections are cut along optimized angular planes, producing the best results possible.