| 声表面波梯形谐振滤波器级联结构的研究 |
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| 引用本文： | 李秀梅,李红浪,何世堂,汪承灏. 声表面波梯形谐振滤波器级联结构的研究[J]. 应用声学, 2003, 22(4): 1-5 |
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| 作者姓名： | 李秀梅 李红浪 何世堂 汪承灏 |
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| 作者单位： | 中国科学院声学研究所,北京,100080 |
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| 摘 要： | 本对声表面波梯形谐振滤波器4级级联的5种不同级联结构进行了理论分析，计算出了其频响特性曲线。对5种不同结构的特性进行了比较，得出了不同结构在带宽、矩形系数、带外抑制等方面的特性，以期对以后实际器件的设计提供理论根据。
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| 关 键 词： | 声表面波梯形谐振滤波器 4级级联结构 频响特性曲线 带宽 矩形系数 带外抑制 设计 |
| 修稿时间： | 2002-04-26 |
Analysis of the series structure of a ladder type SAW resonator-filter |
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| LI Xiumei,LI Honglang,HE Shitang and WANG Chenghao. Analysis of the series structure of a ladder type SAW resonator-filter[J]. Applied Acoustics(China), 2003, 22(4): 1-5 |
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| Authors: | LI Xiumei LI Honglang HE Shitang WANG Chenghao |
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| Affiliation: | Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080;Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080;Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080;Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | This paper simulates the five different series structures of the four-stage ladder type resonator-filter, and obtains the respective frequency response. The characteristics of the five different structures are compared, concerning the characteristics of bandwidth, shape factor and stop-band rejection, thus providing the theoretical basis for the fabrication of filters. |
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| Keywords: | Surface acoustic wave (SAW) Ladder type resonator-filter Series structure |
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