提出了极性抽指加权叉指换能器设计的新方法，克服了传统设计方法的繁杂性。
A new method to design source-withdrawal weighting transducer is presented, which avoids the complexity when using traditional design methods.
SAW滤波器的输入叉指换能器(IDT)等值加权，而输出叉指换能器具有修正的汉明窗结构。
The input interdigital transducers (IDTs) in SAW filters are uniformly weighted while the output IDTs have the modified Hamming window structure.
我们在Y128基片上采用一般型和SPUDT型锥型换能器制作了相对带宽约15%的声表面波滤波器，一个换能器采用“块加权”，另一个换能器采用抽指加权。
Two kinds of SAWF using respectively usual and SPUDT tapered transducers with 15% fractional bandwidth are designed on Y128. One transducer is block weighted, and the other one withdrawal - weighted.
我们在Y128基片上采用一般型和SPUDT型锥型换能器制作了相对带宽约15%的声表面波滤波器，一个换能器采用“块加权”，另一个换能器采用抽指加权。
Two kinds of SAWF using respectively usual and SPUDT tapered transducers with 15% fractional bandwidth are designed on Y128. One transducer is block weighted, and the other one withdrawal - weighted.
应用推荐