论文部分内容阅读
文献报道的SAW倾斜形换能器的设计方法,不能根除变迹损失,可能引起所需频率响应的失真。本文得出了这种换能器的频率响应与其倾斜包络的直接关系,提出了一种新的设计方法,并进行了实验验证。
The design of SAW tilted transducers reported in the literature does not eliminate the loss of apodization and may cause distortions in the required frequency response. In this paper, the direct relationship between the frequency response of the transducer and its slope envelope is obtained. A new design method is proposed and verified by experiments.