| 改进的SIR宽阻带微带带通滤波器设计 |
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| 引用本文： | 周铁,屈德新,郑传家,邱晓军.改进的SIR宽阻带微带带通滤波器设计[J].军事通信技术,2008(4). |
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| 作者姓名： | 周铁 屈德新 郑传家 邱晓军 |
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| 作者单位： | 解放军理工大学通信工程学院研究生1队;解放军理工大学通信工程学院卫星通信系; |
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| 摘 要： | 利用一种改进SIR谐振器设计交叉耦合微带带通滤波器,实现对滤波器谐波响应的进一步抑制。在此谐振器内部引入SIR谐波抑制结构,并给出了宽阻带滤波器的仿真结果。该滤波器具有较宽的阻带特性,从f0到2.8f0间的抑制约为30 dB以上;从2.8f0到5.3f0间的抑制约为20 dB以上。这种简单的谐波抑制结构既不改变原有滤波器的结构,又不需要更高精度的制作工艺,具有较强的实用性。
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| 关 键 词： | 宽阻带 变形半波长阶梯阻抗谐振器 阶梯阻抗抑制结构 |
Design of Improved SIR Wide-stopband Microstrip Bandpass Filter |
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| ZHOU Tie,QU De-xin,ZHENG Chuan-jia,QIU Xiao-jun.Design of Improved SIR Wide-stopband Microstrip Bandpass Filter[J].Journal of Military Communications Technology,2008(4). |
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| Authors: | ZHOU Tie QU De-xin ZHENG Chuan-jia QIU Xiao-jun |
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| Institution: | ZHOU Tie1,QU De-xin2,ZHENG Chuan-jia1,QIU Xiao-jun1(1.Postgraduate Team 1 ICE,PLAUST,Nanjing 210007,China,2.Department of Satellite Communication ICE,PLAUST) |
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| Abstract: | An improved half-wavelength SIR resonator was used to design a cross-coupled bandpass filter.A SIR structure of harmonic frequency suppression in the resonator was proposed and the simulated result of Wide-stopband Filter was presented.There are more than 30 dB suppression from f0to 2.8f0and more than 20 dB suppression from 2.8f0to5.3 f0. The harmonic frequency suppression structure requires neither change in the original filter itself nor more precise fabrication. |
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| Keywords: | wide-stopband improved half-wavelength SIR resonator SIR spurious suppression structure |
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