1. 上海交通大学电子工程系,上海,200030
2. 中国科学院上海微系统与信息技术研究所,上海,200050
3. 上海交通大学电子工程系上海,200030
4. 中国科学院上海微系统与信息技术研究所上海,200050
纸质出版:2004
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刘海文, 孙晓玮, 程知群, 等. 一种新颖的PBG宽阻带低通滤波器[J]. 电子学报, 2004,32(5):791-794.
LIU Hai-wen, SUN Xiao-wei, CHENG Zhi-qun, et al. A Novel Photonic Band-Gap Microstrip Structures for Low-Pass Filers of Wide Stop-Band[J]. Acta Electronica Sinica, 2004, 32(5): 791-794.
本文首次提出综合PBG结构和微带线结构两因素
来设计滤波器的概念.与普通PBG结构滤波器不同的是
本文采用具有T形和十字形短截线的微带线代替直线微带线
在接地板上只需刻蚀一列PBG结构即可构成宽阻带低通滤波器.文中以T形短截线PBG结构的低通滤波器为例
运用时域有限差分法(FDTD)
分析了在不同短截线长度和PBG结构方孔边长的情况下
该滤波器的传输特性.文中还给出了该滤波器和Rumsey方法与Kim方法设计的级联、并联两种PBG结构低通滤波器的传输特性的模拟结果及其对比分析.最后
文中给出了模拟结果和测试结果
来验证所设计的低通滤波器的有效性.
Two novel low-pass filters (LPFs) of wide stop-band synthesizing both the structure of photonic band-gap (PBG) and the structure of microstrip are proposed in this paper.Compared with the conventional PBG filters with the straight microstrip line
one of the proposed filters is implemented by a one-line PBG microstrip structure with T-junction opened stubs and its transmission characteristics are discussed.The other is implemented by a one-line PBG microstrip structure with cross-junction opened stubs.The transmission characteristics of the proposed filter and the filters designed by the Rumsey's method and Kim's method are presented and discussed.The new wide-band harmonic rejection LPFs are easy to design and fabricate.Finally
The simulated and experimental results verify the validity of the LPFs.
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