| 基于扇形枝节加载谐振器的超宽带滤波器 |
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| 引用本文： | 刘家州,马宁,邓希达,延波.基于扇形枝节加载谐振器的超宽带滤波器[J].电子科技大学学报（自然科学版）,2019,48(1):22-25. |
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| 作者姓名： | 刘家州 马宁 邓希达 延波 |
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| 作者单位： | 中国电子科技集团公司电子科学研究院 北京石景山区 100041;北京空间飞行器总体设计部 北京海淀区 100094;电子科技大学电子科学与工程学院 成都 611731 |
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| 基金项目： | 国家自然科学基金91338201 |
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| 摘 要： | 该文提出了一种基于新型扇形枝节加载谐振器的改进上阻带特性的小型化超宽带带通滤波器。该新型多模谐振器由一根高阻微带线上连接三对扇形分流枝节组成。适当调节扇形枝节的尺寸，扇形枝节加载谐振器的谐振频率可以粗略的放置在超宽带频段内（3.1~10.6 GHz）。为了加强耦合度，在滤波器的输入和输出端使用了交指型耦合馈线。此外还给出了该滤波器的设计方法和步骤。最后，给出了滤波器的设计和拓扑结构。测量结果和全波仿真结果有很好地一致性。
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| 关 键 词： | 带通滤波器 小型化 扇形枝节加载谐振器 超宽带 |
| 收稿时间： | 2016-01-03 |
Compact Ultra-Wideband Filter Using Novel Radial-Stub-Loaded Resonator (RSLR) |
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| Affiliation: | 1.China academy of electronics and information technology Shijingshan Beijing 1000412.Beijing Institiut of Spacecraft System Engineering Haidian Beijing 1000943.School of Electrical Science and Engineering, University of Electronic Science and Technology of China Chengdu 611731 |
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| Abstract: | A compact ultra-wideband (UWB) bandpass filter (BPF) with improved upper-stopband performance using novel radial-stub-loaded resonator (RSLR) is proposed. The multiple-mode resonator (MMR) is formed by loading three pairs of radial-stubs in shunt to a high impedance microstrip line. By properly adjusting the dimensions of these radial-stubs, the resonant modes of RSLR can be roughly allocated in the UWB passband (3.1~10.6 GHz). To enhance the coupling degree, two interdigital coupled feed lines are utilized in this filter. The design steps of this filter have also been presented. Finally, a prototype of the proposed filter has been designed and fabricated. The measured results are in good agreement with full-wave simulated results. |
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