| 摘要 |
PURPOSE: An acoustic filter having different two channels for compensating a rejection is provided, which can use an one-way DART type transducer. CONSTITUTION: The acoustic filter having different two channels for compensating a rejection comprises:a first channel including one or more first input transducers (T1U) for defining a first transmission function and a first output transducer (T2U), and a first weighting function; a second channel including one or more second input transducers (T1L) for defining a second transmission function and a second output transducer (T2L), and a second weighting function, wherein first and second input transducers (T1U, T1L) are electrically connected each other, and first and second output transducers (T2U, T2L) are electrically connected each other. Thereby, it is possible to obtain a great sufficient performing degree to a filtering band and a rejection band. |
