New method to transform band‐pass to low‐pass filter using multilayer‐ and U‐slotted ground structure‐technique
New method to transform band‐pass to low‐pass filter using multilayer‐ and U‐slotted ground structure‐technique
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使用多层和 U 形槽接地结构技术将带通滤波器转换为低通滤波器的新方法
DOI：
10.1002/mop.26263
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发表时间：
2011
影响因子：
1.5
通讯作者：
A. Boutejdar
中科院分区：
文献类型：
--
作者：
A. Boutejdar
提出了一种新颖的小型化锐阻带微带带通滤波器。提出的滤波器结构由U形微带谐振器“U带”组成，由形状相似的U槽“U槽接地结构(U-SGS)”支持，也称为“U-缺陷接地结构(U-DGS)”。通过控制U带和U-DGS之间的电耦合，优化了带通滤波器的阻带，以获得更好的抑制效果。由于慢波效应，所提出的滤波器具有低插入损耗和紧凑的尺寸。同时，还获得了由于其通带两侧存在两个传输零点而引起的锐利抑制带。测试的中心频率、带宽和通带插入损耗分别为3.6 GHz、40%和0.5dB。仿真和测量结果表明，该方法具有较好的一致性，验证了该方法的有效性。最后，在消除导纳逆变器(GAP)J的基础上，采用一种新的简单方法，将带通变换为紧凑的低通滤波器。©2011 Wiley期刊，Inc.微波OPT Technol Lett 53：2427-2433,2011；在线查看本文：wileyonlinelibrary.com。DOI 10.1002/MOP.26263
A novel compact microstrip band‐pass filter (BPF) with sharp rejection bands is proposed. The proposed filter structure is composed of U‐shaped microstrip resonators, “U‐strip,” backed by similarly shaped U‐slots “U‐slotted ground structure (U‐SGS)” also called “U‐defected ground structure (U‐DGS).” By controlling the electrical coupling between the U‐strip and the U‐DGS, the band‐pass filter's stopband is optimized for better rejection. The proposed filter has low insertion loss and compact size due to the slow‐wave effect. Meanwhile, sharp rejection bands induced by the presence of two transmission zeros on both sides of its passband are achieved. The measured center frequency, bandwidth, and passband insertion loss are 3.6 GHz, 40%, and 0.5 dB, respectively. The simulated and measured results show good agreement and validate the proposed approach. Finally a new simple method, on the basis of the elimination of the admittance inverter (gap) J, will be used to transform the band‐pass to compact low‐pass filter. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2427–2433, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26263
使用微带不连续性校正和多层技术的小型准椭圆并行耦合带通滤波器
影响因子：
1.5
作者：
A. Boutejdar;E. Burte;A. Omar
通讯作者：
A. Omar