| 一种改进型声表面波滤波器在接收机中的应用 |
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| 引用本文： | 王燕君,王峻,张茜. 一种改进型声表面波滤波器在接收机中的应用[J]. 国际商务研究, 2007, 47(4): 162-165 |
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| 作者姓名： | 王燕君 王峻 张茜 |
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| 作者单位： | [1]中国西南电子技术研究所,成都610036 [2]南京军区空军装备部航材处,南京210018 |
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| 摘 要： | 针对应用于接收机中中心频率为898.144MHz的声表面波滤波器的缺点,提出了一种改进型的滤波器.改进型的声表面波滤波器采用镜像阻抗连接低插损结构,大大改善了幅频特性,提高了选择性和温度稳定性.将其应用到接收机中,经试验验证效果良好.
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| 关 键 词： | 接收机 声表面波滤波器 选择性 温度稳定性 幅频特性 |
| 收稿时间： | 2007-05-29 |
| 修稿时间： | 2007-08-03 |
Application of an Improved Surface Acoustic Wave Filter(SAWF) in Receiver |
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| WANG Yan-jun,WANG Jun,ZHANG Qian. Application of an Improved Surface Acoustic Wave Filter(SAWF) in Receiver[J]. International Business Research, 2007, 47(4): 162-165 |
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| Authors: | WANG Yan-jun WANG Jun ZHANG Qian |
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| Affiliation: | 1. Southwest China Institute of Electronic Technology, Chengdu 610036, China ;2. Aviation Material Divion, Air Forece Equipment Department, Nangjing Area Command, Nangjing 210018, China |
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| Abstract: | For dealing with the shortcoming of a surface acoustic wave filter(SAWF)with central frequency of 898.144MHz,an improved SAWF is proposed.The new SAWF adopts the mirror impedance connection structure with low insertion loss,which can improve the amplitude-frequency characteristic greatly,as well as the choice quality and the temperature stability.Finally,the new SAWF is applied to receiver and experiments prove its excellent performance. |
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| Keywords: | receiver surface acoustic wave filter(SAWF) choice quality temperature stability amplitude-frequency characteristic |
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