| 基于E型谐振器的三陷波超宽带带通滤波器 |
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| 引用本文： | 张友俊,马艳芳.基于E型谐振器的三陷波超宽带带通滤波器[J].电子元件与材料,2020(1):64-67. |
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| 作者姓名： | 张友俊 马艳芳 |
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| 作者单位： | ;1.上海海事大学信息工程学院 |
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| 基金项目： | 上海市自然科学基金(17ZR1411100) |
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| 摘 要： | 针对超宽带系统中存在窄带信号干扰的问题,提出了一种加载E型谐振器的多模谐振器(Multimode Resonator,MMR)结构,采用内嵌开路枝节的方法设计了一款三陷波超宽带滤波器,并且通过调节内嵌开路枝节的长短,实现了双陷波的性能。该超宽带带通滤波器通带频带范围为3. 1~10. 2 GHz,通带内插入损耗小于1 d B,相对带宽为107%。其中,实现的三陷波滤波器的三个陷波中心频率分别为3. 8,5. 1和6. 6 GHz。通过调节内嵌开路枝节的长短,可以实现双陷波到三陷波之间的转换,仿真结果与理论分析一致。
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| 关 键 词： | E型谐振器 多模谐振器 开路枝节 陷波 超宽带 |
Three notch UWB bandpass filter based on E-type resonator |
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| ZHANG Youjun,MA Yanfang.Three notch UWB bandpass filter based on E-type resonator[J].Electronic Components & Materials,2020(1):64-67. |
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| Authors: | ZHANG Youjun MA Yanfang |
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| Institution: | (School of Information Engineering,Shanghai Maritime University,Shanghai 201210,China) |
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| Abstract: | To reduce the narrow-band signal interference in the UWB system,a multimode resonator( MMR) structure with E-type resonator was proposed. A three-trap ultra-wideband filter was designed using the embedded open-circuit branches. Double notch was achieved by adjusting the length of the embedded open branch. The UWB bandpass filter has a pass band from 3. 1 GHz to10. 2 GHz,a passband loss of less than 1 dB,and a relative bandwidth of 107%. The three notch center frequencies of the filters are 3. 8 GHz,5. 1 GHz,and 6. 6 GHz respectively. By adjusting the length of the embedded open branch,the double notch will transform to three notch. The simulation results are consistent with the theoretical analysis. |
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| Keywords: | E-type resonator multimode resonator open branch notch band ultra-wideband |
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