| 基于开路分支线加载双模谐振器的微带带通滤波器设计 |
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| 引用本文： | 程昆仑,李平辉,赵志远.基于开路分支线加载双模谐振器的微带带通滤波器设计[J].军事通信技术,2011(2):53-56. |
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| 作者姓名： | 程昆仑 李平辉 赵志远 |
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| 作者单位： | 解放军理工大学通信工程学院研究生4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： | 文章设计了一款基于开路分支线加载双模谐振器的微带带通滤波器。通过对开路分支线加载双模谐振器的奇偶模特性及固有传输零点分析,利用调节分支线的长度可以灵活地调整谐振器的固有传输零点位置这一特性,采用了两个具有不同分支线长度的谐振器实现了一个高选择性滤波器的设计与测试,测试结果与仿真结果基本一致。所设计的滤波器中心频率为2.45 GHz,通带宽度为150 MHz,通带内插损小于1.5 dB,具有两个位于2.27 GHz和2.57 GHz的传输零点,在2.0 GHz与2.95 GHz处的衰减分别达到41 dB和29.8 dB。此外,该滤波器尺寸小巧,设计加工方便,具有一定的实用价值。
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| 关 键 词： | 带通滤波器 开路分支线加载 双模谐振器 |
Microstrip Bandpass Filter Based on Open Stub-loaded Dual-mode Resonator |
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| CHENG Kun-lun,LI Ping-hui,ZHAO Zhi-yuan.Microstrip Bandpass Filter Based on Open Stub-loaded Dual-mode Resonator[J].Journal of Military Communications Technology,2011(2):53-56. |
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| Authors: | CHENG Kun-lun LI Ping-hui ZHAO Zhi-yuan |
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| Institution: | CHENG Kun-lun1,LI Ping-hui2,ZHAO Zhi-yuan1(1.Postgraduate Team 4 ICE,PLAUST,Nanjing 210007,China,2.Department of Satellite Communication ICE,PLAUST) |
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| Abstract: | A microstrip bandpass filter with two transmission zeros based on open stub-loaded dual-mode resonator is presented in this paper.By analyzing the characteristics of open stub-loaded dual-mode resonator,the proposed resonator has an inherent transmission zero.Besides,it can be easily moved by changing the length of stub-loaded line.Then,a bandpass filter is designed,fabricated and tested to validate the design concept.The resonators used here have different loaded lines that can introduce two different tran... |
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| Keywords: | bandpass filter open stub-loaded dual-mode resonator |
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