| 宽阻带波导带通滤波器的精确设计 |
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| 引用本文： | 张本全,王锡良,阮颖铮.宽阻带波导带通滤波器的精确设计[J].电波科学学报,2005,20(6):806-809,839. |
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| 作者姓名： | 张本全 王锡良 阮颖铮 |
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| 作者单位： | 电子科技大学微波中心,四川,成都,610054;电子科技大学微波中心,四川,成都,610054;电子科技大学微波中心,四川,成都,610054 |
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| 摘 要： | 应用模式匹配法分析了矩形波导中双面阶梯的不连续性.在此基础上,设计和优化了一个C波段1/4波长传输线耦合谐振膜片型带通滤波器.与传统的直接耦合半波长谐振腔型带通滤波器相比,这种滤波器带外抑制度高,阻带宽,特别是其尺寸缩短了近40%.该滤波器的实测结果与数值计算结果吻合很好.
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| 关 键 词： | 模式匹配法 双面阶梯不连续性 谐振膜片 阻带 |
| 文章编号： | 1005-0388（2005）06-0806-05 |
| 收稿时间： | 2003-11-07 |
| 修稿时间： | 2003-11-07 |
Accurate design of wide stop-band waveguide bandpass filters |
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| ZHANG Ben-quan,WANG Xi-liang,RUAN Ying-zheng.Accurate design of wide stop-band waveguide bandpass filters[J].Chinese Journal of Radio Science,2005,20(6):806-809,839. |
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| Authors: | ZHANG Ben-quan WANG Xi-liang RUAN Ying-zheng |
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| Institution: | Microwave Center, University of Electronic Science and Technology of China, cobra_ bqzhang@sina. com, Cheng du Sichuan 610054, China |
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| Abstract: | The double-plane step discontinuity in rectangular waveguide is analyzed utilizing mode-matching method. Then a C-band quarter wave transmission line coupled resonant bandpass filter is designed and optimized in this paper. The filter has not only wider stop band but also decreased dimension (approximately 40% shorter) comparing with traditional direct-coupled half wave resonator ones. Theoretical results of the filter agree well with measured data. |
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| Keywords: | mode matching method double plane step discontinuity resonant iris stop band |
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