Stereoscopic structured gain compensation type SAW device and preparation method

The invention discloses a stereoscopic structured gain compensation type SAW device and a preparation method. The stereoscopic structured gain compensation type SAW device comprises an input interdigital transducer and an output interdigital transducer, and is characterized in that both the input interdigital transducer and the output interdigital transducer are attached onto the surface of a piezoelectric material; the input interdigital transducer and the output interdigital transducer are in coupled connection through SAW; the output interdigital transducer and a matched compensation amplifying circuit are in conductor line connection; the disadvantage that the insertion loss of a SAW filter or a SAW resonator or a SAW delay line is high in prior art can be solved; and thus, the problems of poor consistency, repeatability and reliability, difficult debugging and the like due to external circuit compensation of devices traditionally can be solved. 本发明公开了种立体结构增益补偿型SAW器件及制备方法，它包括输入叉指换能器和输出叉指换能器，其特征在于：输入叉指换能器与