| 基于阶梯阻抗发夹谐振器的小型低通滤波器 |
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| 引用本文： | 蔡钟斌.基于阶梯阻抗发夹谐振器的小型低通滤波器[J].太赫兹科学与电子信息学报,2007,5(1):78-80. |
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| 作者姓名： | 蔡钟斌 |
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| 作者单位： | 中国工程物理研究院,电子工程研究所,四川,绵阳,621900 |
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| 摘 要： | 提出一种基于阶梯阻抗发夹谐振器的小型化微波低通滤波器,该滤波器仅由包含一节微带线的阶梯阻抗发夹谐振器构成。设计结果表明,滤波器3dB通带从DC(Direct Current)到2GHz,回波损耗优于10dB,且插入损耗从DC到1.7GHz时优于0.5dB,带外抑制从2.9～4GHz优于20dB。仿真结果和实验结果吻合良好。这种滤波器尺寸小,易制造,且具有陡峭的截止频率响应特性,可应用于许多微波系统中。
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| 关 键 词： | 低通滤波器 阶梯阻抗谐振器 发夹谐振器 回波损耗 插入损耗 |
| 文章编号： | 1672-2892(2007)01-0078-03 |
| 修稿时间： | 2006-10-31 |
Miniature Low Pass Filter Using Stepped Impedance Hairpin Resonator |
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| CAI Zhong-bin.Miniature Low Pass Filter Using Stepped Impedance Hairpin Resonator[J].Journal of Terahertz Science and Electronic Information Technology,2007,5(1):78-80. |
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| Authors: | CAI Zhong-bin |
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| Affiliation: | Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang Sichuan 621900, China |
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| Abstract: | A miniature microwave low pass filter using a microstrip stepped impedance hairpin resonator is proposed.The proposed filter only consists of a stepped impedance hairpin resonator using simple micro-strip line section.As a result,the filter has a 3dB passband from DC to 2GHz.The return loss is better than 10dB and insertion loss is better than 0.5dB for DC to 1.7GHz.The out-of-band rejection levels are larger than 20dB from 2.9 to 4GHz.Experimental results are closely matched with the theoretical simulation results.The filter has advantages of compact size,easy fabrication and sharp cutoff frequency response,and is useful for many microwave system applications. |
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| Keywords: | low pass filter stepped impedance resonators hairpin resonator return loss insertion loss |
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