2μs低损耗声体波微波延迟线

Piezoelectrics & Acoustooptics(2010)

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Abstract
通过优化换能器拓扑结构,探索长延时传声介质的双面光刻及探针提取S参数进行网络匹配等技术,改进了声体波微波延迟线换能器设计及制作工艺。研制出中心频率为4.3 GHz,带宽为200 MHz,延迟时间为1.999 7μs,插入损耗仅26 dB,直通抑制45 dB,3次渡越抑制42 dB的声体波微波延迟线。
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Key words
delay lines,bulk acoustic wave,low loss
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