| 低频高阻带抑制SAW有源滤波组件 |
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| 引用本文： | 张晓迎,谭学斌,张峥嵘.低频高阻带抑制SAW有源滤波组件[J].压电与声光,2002,24(4):255-257. |
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| 作者姓名： | 张晓迎 谭学斌 张峥嵘 |
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| 作者单位： | 四川压电与声光技术研究所,重庆,400060 |
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| 摘 要： | 介绍了一种低频高阻带抑制SAW有源滤波组件的设计方法，并介绍了最新研制的滤波组件的性能。其中心频率18MHz，通带波动0.5dB，近端阻带抑制达105dB，远端阻带抑制大于95dB（其中三次谐波抑制大于75dB)，增益8dB。
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| 关 键 词： | 低频带通滤波器 体液效应 声表面波滤波 低频声表面波 |
| 文章编号： | 1004-2474(2002)04-0255-03 |
| 修稿时间： | 2002年3月2日 |
An Active SAW Filter Module with Low Frequency and High Stopband Rejection |
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| ZHANG Xiao yin,TAN Xue bing,ZHNAG Zhen rong.An Active SAW Filter Module with Low Frequency and High Stopband Rejection[J].Piezoelectrics & Acoustooptics,2002,24(4):255-257. |
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| Authors: | ZHANG Xiao yin TAN Xue bing ZHNAG Zhen rong |
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| Abstract: | The design method of an active SAW filter module with low frequency and high stopband rejection is introduced in this paper.The performances of the module developed recently are also given.Its center frequency is 18 MHz with the passband ripple of 0 5 dB.The near end stopband rejection is up to 105 dB while the far end larger than 95 dB(triple frequency harmonic suppression is larger than 75 dB).The module gain is 8 dB. |
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| Keywords: | low frequency bandpass filter filter module bulk wave |
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