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介绍了１０２４位声表面波抽头延迟线（ＳＡＷＴＤＬ）的几种设计结构及试验结果。其中声学级联结构为首次提出，是解决高位、长时延ＳＡＷＴＤＬ设计的行之有效的结构。
Several design structures and test results of SAWTDL (1024-bit SAWTDL) are introduced. Acoustical cascade structure is proposed for the first time, which is an effective structure to solve the high-level and long-delay SAWTDL design.