| 新型缺陷接地结构带通滤波器研究 |
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| 引用本文： | 顾继慧,杨一飞,周虹,朱银霞.新型缺陷接地结构带通滤波器研究[J].南京理工大学学报(自然科学版),2008,32(6). |
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| 作者姓名： | 顾继慧 杨一飞 周虹 朱银霞 |
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| 作者单位： | 南京理工大学,电子工程与光电技术学院,江苏,南京,210094 |
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| 摘 要： | 在传统缺陷接地结构(DGS)哑铃型微带线的基础上,提出了一种新型DGS,即将哑铃型DGS中的长方形缝隙变为蛇形缝隙.借助于Designer软件,得到哑铃型DGS与新型DGS的仿真结果.在相同缺陷面积条件下,新型结构可获得更低的衰减频率,而在衰减频率相同时,所占用缺陷面积也更少,衰减频率降低约3 GHz,缺陷面积减少为原来的30%左右,减小了对级联电路的辐射影响,提高了系统的电磁兼容性.分析了结构参数变化对阻带特性的影响,并将新型DGS应用于紧凑结构带通滤波器(BPF)的设计.仿真结果验证了新型DGS带通滤波器的有效性和可行性.
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| 关 键 词： | 缺陷接地结构 带通滤波器 滤波特性 |
Novel Defected Ground Structure Bandpass Filter |
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| GU Ji-hui,YANG Yi-fei,ZHOU Hong,ZHU Yin-xia.Novel Defected Ground Structure Bandpass Filter[J].Journal of Nanjing University of Science and Technology(Nature Science),2008,32(6). |
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| Authors: | GU Ji-hui YANG Yi-fei ZHOU Hong ZHU Yin-xia |
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| Institution: | School of Electronic Engineering and Optoelectronic Technology;NUST;Nanjing 210094;China |
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| Abstract: | Based on the traditional dumbbell defected ground structure(DGS) for microstrip line,a novel DGS is proposed,that is,changing the rectangle gap of the dumbbell DGS into snake-like gap.With the Designer software,the simulation results of the dumbbell and the new DGS demonstrate that the latter can obtain lower attenuation frequency in the same defected area and can take up less defected areas at the same attenuation frequency.The attenuation frequency decreases about 3GHz in the same defected area,and the de... |
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| Keywords: | defected ground structures bandpass filters filter characteristics |
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