| 基于倒置转换的二次通带抑制微带滤波器 |
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| 引用本文： | 郭雷锋,方立军.基于倒置转换的二次通带抑制微带滤波器[J].科技资讯,2013(9):9-10. |
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| 作者姓名： | 郭雷锋 方立军 |
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| 作者单位： | 中国电子科技集团公司第三十八研究所 安徽合肥 230088 |
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| 摘 要： | 基于Butterworth带通滤波器原型，应用饲置转换和Richards变换进行微带滤波器设计，得到的滤波器具有较强的二次通带抑制能力。对设计结果进行的仿真表明，滤波器3dB通带范围4．1～4．9GHz，对二次谐波处寄生通带的抑制大于50dB。本文的设计方法简单高效，具有通用性；得到的微帝滤波器结构小巧，易于实现。
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| 关 键 词： | 二次寄生通带抑制 微带滤波器 饲置转换 Richards变换 |
A Micro-Strip Filter with Powerful Suppression in the Second Spurious Band Based on Immittance Inverters |
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| Guo Xuefeng
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Fang Lijun.A Micro-Strip Filter with Powerful Suppression in the Second Spurious Band Based on Immittance Inverters[J].Science & Technology Information,2013(9):9-10. |
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| Authors: | Guo Xuefeng Fang Lijun |
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| Institution: | (No.38 Research Institute of CETC, Anhui Hefei 230088, China) |
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| Abstract: | From the prototype of Butterworth band-pass filter, using immittance inverters and Richards transformation, a micro-strip filter with powerful suppression in the second spurious band is designed. The simulation results show that the 3dB pass-band is 4.1~4.9 GHz, and the suppression on the second spurious band is larger than 50dB. The design methods introduced here are simple, high efficiency, and universal. The final micro-strip filter has a small structure and is easy to manufacture. |
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| Keywords: | The second spurious band suppression：Micro--strip filter IImmittance inverter IRichards transformation |
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