| 通讯用高基频带通声表面波滤波器的设计 |
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| 引用本文： | 许四科,刘刚,高益,于军.通讯用高基频带通声表面波滤波器的设计[J].压电与声光,2006,28(2):127-129. |
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| 作者姓名： | 许四科 刘刚 高益 于军 |
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| 作者单位： | 华中科技大学,电子科学与技术系,湖北,武汉,430074 |
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| 摘 要： | 简述了声表面波滤波器当前的发展,讨论了单端谐振型声表面波带通滤波器设计原理和设计要点,得到了一种较好的设计方案,并给出了主要参数的推导过程。通过对滤波器滤波特性影响因素的分析,改进了谐振电路结构和参数,并成功设计了中心频率为902.5 MHz,带宽为25 MHz的声表面波滤波器。
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| 关 键 词： | 谐振器 声表面波滤波器 插入损耗 |
| 文章编号： | 1004-2474(2006)02-0127-03 |
| 收稿时间： | 2004-04-27 |
| 修稿时间： | 2004年4月27日 |
Design on the High Fundamental Frequency SAWF for Communication |
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| XU Si-ke,LIU Gang,GAO Yi,YU Jun.Design on the High Fundamental Frequency SAWF for Communication[J].Piezoelectrics & Acoustooptics,2006,28(2):127-129. |
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| Authors: | XU Si-ke LIU Gang GAO Yi YU Jun |
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| Abstract: | The paper describes current development of SAWF.The basic design principles and key points for SAWF bandpass filters using one-port SAW resonaters were discussed and a good design project was got.Many key parameters were concluded.Through disscussing the important factors that influence the filter's characteristcs and improving on the structure of resonator circuit,a SAWF with center frequency of 902.5 MHz and bandwidth of(25 MHz) has been designed successfully. |
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| Keywords: | resonators surface acoustic wave filter(SAWF) insertion loss |
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