| 高频低损耗声表面波滤波器研制 |
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| 引用本文： | 傅金桥,曹亮.高频低损耗声表面波滤波器研制[J].压电与声光,1996,18(4):227-230. |
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| 作者姓名： | 傅金桥 曹亮 |
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| 作者单位： | 四川压电与声光技术研究所 |
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| 摘 要： | 回顾了低损耗声表面波滤波器的主要设计方法，介绍了镜像阻抗连接换能器结构中调整滤波器带宽的设计技术，给出了在９６０ＭＨｚ高频下的两种试验结果，相对带宽分别为１％和２％，插入损耗小于５ｄＢ，阻带抑制优于５０ｄＢ。
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| 关 键 词： | 高频，低损耗，镜像阻抗，声表面波滤波器 |
Development of Low Loss High Frequency SAW Filters |
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| Fi Jinqiao,Cao Liang,Xiao Yan.Development of Low Loss High Frequency SAW Filters[J].Piezoelectrics & Acoustooptics,1996,18(4):227-230. |
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| Authors: | Fi Jinqiao Cao Liang Xiao Yan |
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| Abstract: | The paper reviewed the main design methods of low loss SAW filters and presentedthe design technique for adjusting the bandwidth of filter in the transducer structure with imageimpedance connection.Two experimental results of 960 MHz SAW filters are given out.Their relative bandwidth is 1% and 2% respectively,insertion loss<5 dB,out-of-band rejection>50 dB. |
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| Keywords: | high frequency low loss image impedance SAW filter |
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