| 基于新型缺陷地的谐波抑制微带滤波器设计 |
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| 引用本文： | 门阳,游彬.基于新型缺陷地的谐波抑制微带滤波器设计[J].电子器件,2011,34(6):668-671. |
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| 作者姓名： | 门阳 游彬 |
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| 作者单位： | 杭州电子科技大学射频电路与系统教育部重点实验室 |
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| 摘 要： | 由于分布参数传输线频率响应的周期性,通常微带线带通滤波器在偏离主通带中心频率成分上会产生寄生通带,输出谐波.在研究经典哑铃DGS的基础上,利用新型DGS和SISS结构的单极点带阻和慢波特性,设计出五阶微带低通滤波器,并将之应用于三阶耦合线带通滤波器,改善其寄生通带.经过仿真验证,成功地抑制了三阶耦合线带通滤波器的谐波输...
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| 关 键 词： | 新型DGS SISS 微带滤波器 谐波抑制 |
Design of Harmonic-Suppressed Microstrip Filter Using Novel Defected Ground Structure |
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| MEN Yang,YOU Bin.Design of Harmonic-Suppressed Microstrip Filter Using Novel Defected Ground Structure[J].Journal of Electron Devices,2011,34(6):668-671. |
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| Authors: | MEN Yang YOU Bin |
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| Affiliation: | (The Key Laboratory of RF Circuits and System of Ministry of Education Hangzhou Dianzi University,Hangzhou 310018,China) |
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| Abstract: | Due to the frequency response ’ s periodicity of distributed transmission line,microstrip bandpass filter usually produces parasitic passband and outputs harmonics away from the center frequence of main passband.Based on the study of traditional dumbbell defected ground structure,a novel DGS(Defected Ground Structure)and SISS(Step-Impedance Shunt Stub)structure having single-pole band-stop and slow-wave characteristics was presented to design a five-order microstrip low-pass filter.Eventually,the LPF was applied to a three-order coupled microstrip lines band-pass filter in order to improve its parasitic pass-band.The harmonics output was successfully suppressed and the cut-off frequency band was broadened by the verification of software simulation. |
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| Keywords: | novel DGS SISS microstrip filter harmonic suppression |
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