| 一种新型微带交指带通滤波器的设计 |
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| 引用本文： | 赵智兵,赵国华,陈星.一种新型微带交指带通滤波器的设计[J].太赫兹科学与电子信息学报,2008,6(2):128-130. |
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| 作者姓名： | 赵智兵 赵国华 陈星 |
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| 作者单位： | 四川大学,电子信息学院,四川,成都,610064 |
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| 摘 要： | 分析了四分之一波长阶跃阻抗谐振器(SIR)能够抑制寄生响应的特点和实现滤波器小型化设计的原理。利用SIR增加了设计滤波器的灵活度,实现了对L波段传统微带交指带通滤波器的改进,得到了基于SIR结构的新型微带交指带通滤波器。仿真试验结果证明:改进后的滤波器第一寄生响应向后推移1.4 GHz,整个滤波器的面积可以减少32%,该设计方法有效。
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| 关 键 词： | 带通滤波器 寄生响应 交指 阶跃阻抗谐振器 |
| 文章编号： | 1672-2892(2008)02-0128-03 |
| 修稿时间： | 2007年10月15 |
Design of a Novel Microstrip Interdigital Bandpass Filter |
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| ZHAO Zhi-bing,ZHAO Guo-hu,CHEN Xing.Design of a Novel Microstrip Interdigital Bandpass Filter[J].Journal of Terahertz Science and Electronic Information Technology,2008,6(2):128-130. |
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| Authors: | ZHAO Zhi-bing ZHAO Guo-hu CHEN Xing |
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| Abstract: | This paper analyzes 1/4 wavelength Stepped Impedance Resonator(SIR) which can inhibit spurious response and realize the miniaturization design of filters;meanwhile it can enhance the flexibility for filter design.With this structure,L waveband conventional microstrip interdigital bandpass filter has been improved based on SIR structure.It is shown by the measuring data that the first spurious response of the improved filter has the backward movement of 1.4 GHz and the area of the whole filter can be reduced by 32%,which validates this new design method. |
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| Keywords: | bandpass filter spurious response interdigital stepped impedance resonator |
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