| 阶梯型射频SAW滤波器的计算机模拟 |
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| 引用本文： | 詹杰,王占和,鉴海防,黄占兵.阶梯型射频SAW滤波器的计算机模拟[J].压电与声光,2005,27(3):218-221. |
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| 作者姓名： | 詹杰 王占和 鉴海防 黄占兵 |
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| 作者单位： | 北京理工大学,电子工程系,北京,100081 |
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| 摘 要： | 简述了射频声表面波滤波器(RF—SAWF)的研究进展，讨论了谐波法中的阶梯型又指换能器(IDT)结构的等效电路模型。并根据该模型计算并模拟了RF—SAWF的幅频响应，模拟结果证明阶梯型IDT可有效地激发高次谐波，抑制基波和其他无用谐波。
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| 关 键 词： | 声表面波滤波器（SAWF） 又指换能器（IDT） 谐波 阶梯型 |
| 文章编号： | 1004-2474(2005)03-0218-04 |
| 修稿时间： | 2003年11月4日 |
Computer Simulation of Stepped-Finger RF-SAW Filter |
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| Zhan Jie,WANG Zhan-he,JIAN Hai-fang,HUANG Zhan-bing.Computer Simulation of Stepped-Finger RF-SAW Filter[J].Piezoelectrics & Acoustooptics,2005,27(3):218-221. |
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| Authors: | Zhan Jie WANG Zhan-he JIAN Hai-fang HUANG Zhan-bing |
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| Abstract: | This paper describes current development of radio frequency surface acoustic wave filter (RF-SAWF), and then the equivalent circuit model of the stepped-figner IDT working at harmonic frequency is fully detailed.It also presents the RF-SAWF's frequency response based on this equivalent circuit model. Simulation results verify that stepped-finger IDT can generate desired harmonic effectively and suppress fundamental and other unwanted harmonics. |
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| Keywords: | SAWF IDT harmonic stepped-finger type |
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